Alert archive / Colorado / Wind Chill Advisories in 2016
Wind Chill Advisory 2, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this wind chill advisory at Dec 16, 2016, 12:58 PM MST for 14 counties in Colorado. It took effect at Dec 17, 2016, 12:00 AM MST. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Dec 16, 2016, 12:58 PM MST (19:58 UTC)
- In effect from
- Dec 17, 2016, 12:00 AM MST
- Expired
- Dec 17, 2016, 12:00 PM MST
- In force
- 12 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 55 km from the middle of the area, began a volume at 19:59 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 8.0 hours before the alert went out and 67 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2396 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
708 WWUS45 KBOU 161958 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1258 PM MST FRI DEC 16 2016 ...HEAVIEST SNOW EXPECTED TONIGHT OVER NORTHERN COLORADO MOUNTAINS... .THE HEAVIEST SNOW IS EXPECTED TONIGHT OVER THE MOUNTAINS AS THE UPPER DISTURBANCE MOVES ACROSS COLORADO. STRONG WESTERLY WINDS OVER THE HIGH PASSES AND UP AROUND THE EISENHOWER TUNNEL WILL COMBINE WITH THE HEAVY SNOWFALL TO PRODUCE HAZARDOUS AND VERY DIFFICULT WINTER DRIVING CONDITIONS. POOR VISIBILITIES AND SNOW COVERED ROADS MAY RESULT IN VERY SLOW TRAFFIC AND POSSIBLE ROAD CLOSURES. SNOWFALL IS EXPECTED TO DECREASE LATE TONIGHT...WITH LIGHTER SNOWFALL RATES INTO SATURDAY MORNING. PEOPLE PLANNING TRAVEL INTO THE COLORADO HIGH COUNTRY THROUGH SATURDAY MORNING SHOULD BE PREPARED FOR ADVERSE AND VERY DIFFICULT TRAVEL CONDITIONS. COZ031-170400- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS, AND RABBIT EARS PASS 1258 PM MST FRI DEC 16 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... * TIMING...SNOWFALL WILL INCREASE AGAIN THIS EVENING AND CONTINUE INTO SATURDAY MORNING. THE HEAVIEST SNOWFALL WILL OCCUR THIS EVENING. * SNOW ACCUMULATIONS...FROM 12 TO 24 INCHES....HEAVIEST ABOVE TIMBERLINE AND WEST FACING SLOPES. * WIND/VISIBILITY...WEST TO SOUTHWEST WINDS OF 25 TO 45 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. VISIBILITIES MAY FALL BELOW A FEW HUNDRED FEET AT TIMES DUE TO HEAVY SNOW AND BLOWING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS TODAY THROUGH SATURDAY MORNING...ESPECIALLY OVER THE PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ033-034-170400- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF CAMERON PASS, LARAMIE AND MEDICINE BOW MOUNTAINS, RABBIT EARS RANGE, ROCKY MOUNTAIN NATIONAL PARK, WILLOW CREEK PASS, BERTHOUD PASS, BRECKENRIDGE, EAST SLOPES MOSQUITO RANGE, EAST SLOPES SOUTHERN GORE RANGE, EISENHOWER TUNNEL, INDIAN PEAKS, KENOSHA MOUNTAINS, MOUNT EVANS, WILLIAMS FORK MOUNTAINS, AND WINTER PARK 1258 PM MST FRI DEC 16 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... * TIMING...SNOWFALL WILL INCREASE IN INTENSITY THIS EVENING AND CONTINUE INTO SATURDAY MORNING. SNOW WILL BE HEAVY AT TIMES THIS TONIGHT. * SNOW ACCUMULATIONS...8 TO 16 INCHES. * WIND/VISIBILITY...WEST TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS AROUND 50 MPH WILL PRODUCE BLOWING SNOW OVER THE HIGHER PASSES AND RIDGES THROUGH FRIDAY NIGHT. VISIBILITIES MAY FALL BELOW A FEW HUNDRED FEET AT TIMES IN HEAVY SNOWFALL AND BLOWING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS TODAY THROUGH SATURDAY MORNING. TRAVEL RESTRICTIONS AND ROAD CLOSURES ARE HIGHLY POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS AND BLOWING SNOW ARE LIKELY... .WHICH WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ042-044>046-048>051-170400- /O.NEW.KBOU.WC.Y.0002.161217T0700Z-161217T1900Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY- PHILLIPS COUNTY- INCLUDING THE CITIES OF BRIGGSDALE, GROVER, PAWNEE BUTTES, RAYMER, STONEHAM, BRUSH, FORT MORGAN, GOODRICH, WIGGINS, BENNETT, BYERS, DEER TRAIL, LEADER, AGATE, HUGO, LIMON, MATHESON, CROOK, MERINO, STERLING, PEETZ, AKRON, COPE, LAST CHANCE, OTIS, JULESBURG, OVID, SEDGWICK, AMHERST, HAXTUN, AND HOLYOKE 1258 PM MST FRI DEC 16 2016 ...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MST SATURDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WIND CHILL ADVISORY, WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MST SATURDAY. * WIND CHILL VALUES...15 TO 25 BELOW ZERO. * IMPACTS...THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKINFROM 2 TO 6 INCHES OF SNOW FELL OVERNIGHT IN THE MOUNTAINS AROUND STEAMBOAT SPRINGS WITH EVEN HEAVIER SNOW IN THE MOUNTAINS WEST OF ASPEN.FROM 2 TO 6 INCHES OF SNOW FELL OVERNIGHT IN THE MOUNTAINS AROUND STEAMBOAT SPRINGS WITH EVEN HEAVIER SNOW IN THE MOUNTAINS WEST OF ASPEN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$
8 follow-up statements
676 WWUS45 KBOU 162027 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 127 PM MST FRI DEC 16 2016 ...HEAVIEST SNOW EXPECTED TONIGHT OVER NORTHERN COLORADO MOUNTAINS... .THE HEAVIEST SNOW IS EXPECTED TONIGHT OVER THE MOUNTAINS AS THE UPPER DISTURBANCE MOVES ACROSS COLORADO. STRONG WESTERLY WINDS OVER THE HIGH PASSES AND UP AROUND THE EISENHOWER TUNNEL WILL COMBINE WITH THE HEAVY SNOWFALL TO PRODUCE HAZARDOUS AND VERY DIFFICULT WINTER DRIVING CONDITIONS. POOR VISIBILITIES AND SNOW COVERED ROADS MAY RESULT IN VERY SLOW TRAFFIC AND POSSIBLE ROAD CLOSURES. SNOWFALL IS EXPECTED TO DECREASE LATE TONIGHT...WITH LIGHTER SNOWFALL RATES INTO SATURDAY MORNING. PEOPLE PLANNING TRAVEL INTO THE COLORADO HIGH COUNTRY THROUGH SATURDAY MORNING SHOULD BE PREPARED FOR ADVERSE AND VERY DIFFICULT TRAVEL CONDITIONS. COZ031-170430- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS, AND RABBIT EARS PASS 127 PM MST FRI DEC 16 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... * TIMING...SNOWFALL WILL INCREASE AGAIN THIS EVENING AND CONTINUE INTO SATURDAY MORNING. THE HEAVIEST SNOWFALL WILL OCCUR THIS EVENING. * SNOW ACCUMULATIONS...FROM 12 TO 24 INCHES....HEAVIEST ABOVE TIMBERLINE AND WEST FACING SLOPES. * WIND/VISIBILITY...WEST TO SOUTHWEST WINDS OF 25 TO 45 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. VISIBILITIES MAY FALL BELOW A FEW HUNDRED FEET AT TIMES DUE TO HEAVY SNOW AND BLOWING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS TODAY THROUGH SATURDAY MORNING...ESPECIALLY OVER THE PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ033-034-170430- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF CAMERON PASS, LARAMIE AND MEDICINE BOW MOUNTAINS, RABBIT EARS RANGE, ROCKY MOUNTAIN NATIONAL PARK, WILLOW CREEK PASS, BERTHOUD PASS, BRECKENRIDGE, EAST SLOPES MOSQUITO RANGE, EAST SLOPES SOUTHERN GORE RANGE, EISENHOWER TUNNEL, INDIAN PEAKS, KENOSHA MOUNTAINS, MOUNT EVANS, WILLIAMS FORK MOUNTAINS, AND WINTER PARK 127 PM MST FRI DEC 16 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... * TIMING...SNOWFALL WILL INCREASE IN INTENSITY THIS EVENING AND CONTINUE INTO SATURDAY MORNING. SNOW WILL BE HEAVY AT TIMES THIS TONIGHT. * SNOW ACCUMULATIONS...8 TO 16 INCHES. * WIND/VISIBILITY...WEST TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS AROUND 50 MPH WILL PRODUCE BLOWING SNOW OVER THE HIGHER PASSES AND RIDGES THROUGH FRIDAY NIGHT. VISIBILITIES MAY FALL BELOW A FEW HUNDRED FEET AT TIMES IN HEAVY SNOWFALL AND BLOWING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS TODAY THROUGH SATURDAY MORNING. TRAVEL RESTRICTIONS AND ROAD CLOSURES ARE HIGHLY POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS AND BLOWING SNOW ARE LIKELY... .WHICH WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ042-044>046-048>051-170430- /O.CON.KBOU.WC.Y.0002.161217T0700Z-161217T1900Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY- PHILLIPS COUNTY- INCLUDING THE CITIES OF BRIGGSDALE, GROVER, PAWNEE BUTTES, RAYMER, STONEHAM, BRUSH, FORT MORGAN, GOODRICH, WIGGINS, BENNETT, BYERS, DEER TRAIL, LEADER, AGATE, HUGO, LIMON, MATHESON, CROOK, MERINO, STERLING, PEETZ, AKRON, COPE, LAST CHANCE, OTIS, JULESBURG, OVID, SEDGWICK, AMHERST, HAXTUN, AND HOLYOKE 127 PM MST FRI DEC 16 2016 ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MST SATURDAY... * WIND CHILL VALUES...15 TO 25 BELOW ZERO. * IMPACTS...THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$
399 WWUS45 KBOU 170057 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 557 PM MST FRI DEC 16 2016 ...HEAVIEST SNOW EXPECTED TONIGHT OVER NORTHERN COLORADO MOUNTAINS... .THE HEAVIEST SNOW IS EXPECTED TONIGHT OVER THE MOUNTAINS AS THE UPPER DISTURBANCE MOVES ACROSS COLORADO. STRONG WESTERLY WINDS OVER THE HIGH PASSES AND UP AROUND THE EISENHOWER TUNNEL WILL COMBINE WITH THE HEAVY SNOWFALL TO PRODUCE HAZARDOUS AND VERY DIFFICULT WINTER DRIVING CONDITIONS. POOR VISIBILITIES AND SNOW COVERED ROADS MAY RESULT IN VERY SLOW TRAFFIC AND POSSIBLE ROAD CLOSURES. SNOWFALL IS EXPECTED TO DECREASE LATE TONIGHT...WITH LIGHTER SNOWFALL RATES INTO SATURDAY MORNING. PEOPLE PLANNING TRAVEL INTO THE COLORADO HIGH COUNTRY THROUGH SATURDAY MORNING SHOULD BE PREPARED FOR ADVERSE AND VERY DIFFICULT TRAVEL CONDITIONS. COZ042-044>046-048>051-170900- /O.NEW.KBOU.WC.W.0001.161217T1200Z-161217T1900Z/ /O.EXT.KBOU.WC.Y.0002.161217T0700Z-161217T1200Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY- PHILLIPS COUNTY- INCLUDING THE CITIES OF BRIGGSDALE, GROVER, PAWNEE BUTTES, RAYMER, STONEHAM, BRUSH, FORT MORGAN, GOODRICH, WIGGINS, BENNETT, BYERS, DEER TRAIL, LEADER, AGATE, HUGO, LIMON, MATHESON, CROOK, MERINO, STERLING, PEETZ, AKRON, COPE, LAST CHANCE, OTIS, JULESBURG, OVID, SEDGWICK, AMHERST, HAXTUN, AND HOLYOKE 557 PM MST FRI DEC 16 2016 ...WIND CHILL ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST SATURDAY...A WIND CHILL WARNING WILL TAKES ITS PLACE AND BE IN EFFECT FROM 5 AM TO NOON MST SATURDAY ON THE EASTERN PLAINS... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WIND CHILL WARNING, WHICH IS IN EFFECT FROM 5 AM TO NOON MST SATURDAY. * WIND CHILL VALUES FOR THE ADVISORY WILL RANGE FROM 15 TO 25 BELOW ZERO. WIND CHILL VALUES WILL DROP BELOW 25 DEGREES BELOW ZERO FROM 5 AM UNTIL NOON SATURDAY. * IMPACTS...THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ031-170900- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS, AND RABBIT EARS PASS 557 PM MST FRI DEC 16 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... * TIMING...SNOWFALL WILL INCREASE AGAIN THIS EVENING AND CONTINUE INTO SATURDAY MORNING. THE HEAVIEST SNOWFALL WILL OCCUR THIS EVENING. * SNOW ACCUMULATIONS...FROM 12 TO 24 INCHES....HEAVIEST ABOVE TIMBERLINE AND WEST FACING SLOPES. * WIND/VISIBILITY...WEST TO SOUTHWEST WINDS OF 25 TO 45 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. VISIBILITIES MAY FALL BELOW A FEW HUNDRED FEET AT TIMES DUE TO HEAVY SNOW AND BLOWING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS TODAY THROUGH SATURDAY MORNING...ESPECIALLY OVER THE PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ033-034-170900- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF CAMERON PASS, LARAMIE AND MEDICINE BOW MOUNTAINS, RABBIT EARS RANGE, ROCKY MOUNTAIN NATIONAL PARK, WILLOW CREEK PASS, BERTHOUD PASS, BRECKENRIDGE, EAST SLOPES MOSQUITO RANGE, EAST SLOPES SOUTHERN GORE RANGE, EISENHOWER TUNNEL, INDIAN PEAKS, KENOSHA MOUNTAINS, MOUNT EVANS, WILLIAMS FORK MOUNTAINS, AND WINTER PARK 557 PM MST FRI DEC 16 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... * TIMING...SNOWFALL WILL INCREASE IN INTENSITY THIS EVENING AND CONTINUE INTO SATURDAY MORNING. SNOW WILL BE HEAVY AT TIMES THIS TONIGHT. * SNOW ACCUMULATIONS...8 TO 16 INCHES. * WIND/VISIBILITY...WEST TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS AROUND 50 MPH WILL PRODUCE BLOWING SNOW OVER THE HIGHER PASSES AND RIDGES THROUGH FRIDAY NIGHT. VISIBILITIES MAY FALL BELOW A FEW HUNDRED FEET AT TIMES IN HEAVY SNOWFALL AND BLOWING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS TODAY THROUGH SATURDAY MORNING. TRAVEL RESTRICTIONS AND ROAD CLOSURES ARE HIGHLY POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS AND BLOWING SNOW ARE LIKELY... .WHICH WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ038-040-041-043-170900- /O.EXB.KBOU.WC.Y.0002.161217T1200Z-161217T1900Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY- INCLUDING THE CITIES OF FORT COLLINS, HEREFORD, LOVELAND, NUNN, AURORA, BRIGHTON, CITY OF DENVER, DENVER INTERNATIONAL AIRPORT, HIGHLANDS RANCH, LITTLETON, PARKER, CASTLE ROCK, ELBERT, FONDIS, KIOWA, LARKSPUR, EATON, FORT LUPTON, GREELEY, AND ROGGEN 557 PM MST FRI DEC 16 2016 ...WIND CHILL ADVISORY IN EFFECT FROM 5 AM TO NOON MST SATURDAY FOR THE URBAN CORRIDOR... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WIND CHILL ADVISORY, WHICH IS IN EFFECT FROM 5 AM TO NOON MST SATURDAY. * WIND CHILL VALUES...15 TO 25 BELOW ZERO. * IMPACTS...THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$
289 WWUS45 KBOU 170404 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 904 PM MST FRI DEC 16 2016 ...HEAVIEST SNOW EXPECTED TONIGHT OVER NORTHERN COLORADO MOUNTAINS... .THE HEAVIEST SNOW IS EXPECTED TONIGHT OVER THE MOUNTAINS AS THE UPPER DISTURBANCE MOVES ACROSS COLORADO. STRONG WESTERLY WINDS OVER THE HIGH PASSES AND UP AROUND THE EISENHOWER TUNNEL WILL COMBINE WITH THE HEAVY SNOWFALL TO PRODUCE HAZARDOUS AND VERY DIFFICULT WINTER DRIVING CONDITIONS. POOR VISIBILITIES AND SNOW COVERED ROADS MAY RESULT IN VERY SLOW TRAFFIC AND POSSIBLE ROAD CLOSURES. SNOWFALL IS EXPECTED TO DECREASE LATE TONIGHT...WITH LIGHTER SNOWFALL RATES INTO SATURDAY MORNING. PEOPLE PLANNING TRAVEL INTO THE COLORADO HIGH COUNTRY THROUGH SATURDAY MORNING SHOULD BE PREPARED FOR ADVERSE AND VERY DIFFICULT TRAVEL CONDITIONS. COZ031-171215- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- 904 PM MST FRI DEC 16 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... * TIMING...SNOWFALL WILL INCREASE AGAIN THIS EVENING AND CONTINUE INTO SATURDAY MORNING. THE HEAVIEST SNOWFALL WILL OCCUR THIS EVENING. * SNOW ACCUMULATIONS...FROM 12 TO 24 INCHES....HEAVIEST ABOVE TIMBERLINE AND WEST FACING SLOPES. * WIND/VISIBILITY...WEST TO SOUTHWEST WINDS OF 25 TO 45 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. VISIBILITIES MAY FALL BELOW A FEW HUNDRED FEET AT TIMES DUE TO HEAVY SNOW AND BLOWING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS TODAY THROUGH SATURDAY MORNING...ESPECIALLY OVER THE PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ033-034-171215- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- 904 PM MST FRI DEC 16 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... * TIMING...SNOWFALL WILL INCREASE IN INTENSITY THIS EVENING AND CONTINUE INTO SATURDAY MORNING. SNOW WILL BE HEAVY AT TIMES THIS TONIGHT. * SNOW ACCUMULATIONS...8 TO 16 INCHES. * WIND/VISIBILITY...WEST TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS AROUND 50 MPH WILL PRODUCE BLOWING SNOW OVER THE HIGHER PASSES AND RIDGES THROUGH FRIDAY NIGHT. VISIBILITIES MAY FALL BELOW A FEW HUNDRED FEET AT TIMES IN HEAVY SNOWFALL AND BLOWING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS TODAY THROUGH SATURDAY MORNING. TRAVEL RESTRICTIONS AND ROAD CLOSURES ARE HIGHLY POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS AND BLOWING SNOW ARE LIKELY... .WHICH WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ042-044>046-048>051-171215- /O.CON.KBOU.WC.W.0001.161217T1200Z-161217T1900Z/ /O.CON.KBOU.WC.Y.0002.161217T0700Z-161217T1200Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY- PHILLIPS COUNTY- 904 PM MST FRI DEC 16 2016 ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST SATURDAY... ...WIND CHILL WARNING REMAINS IN EFFECT FROM 5 AM TO NOON MST SATURDAY... * WIND CHILL VALUES FOR THE ADVISORY WILL RANGE FROM 15 TO 25 BELOW ZERO. WIND CHILL VALUES WILL DROP BELOW 25 DEGREES BELOW ZERO FROM 5 AM UNTIL NOON SATURDAY. * IMPACTS...THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ038-040-041-043-171215- /O.NEW.KBOU.WW.Y.0029.161217T0404Z-161217T1500Z/ /O.CON.KBOU.WC.Y.0002.161217T1200Z-161217T1900Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY- 904 PM MST FRI DEC 16 2016 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM MST SATURDAY... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 AM TO NOON MST SATURDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW, WHICH IS IN EFFECT UNTIL 8 AM MST SATURDAY. * TIMING...SNOW WILL CONTINUE OVERNIGHT...DECREASING EARLY SATURDAY. * SNOW ACCUMULATIONS...3 TO 5 INCHES. * WIND/VISIBILITY...NORTH NORTHEAST WINDS 19 TO 15 MPH WITH VISIBILITIES TO A HALF MILE IN SNOW AND BLOWING SNOW. * WIND CHILL VALUES...15 TO 25 BELOW ZERO. * IMPACTS...THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ035-036-039-171215- /O.NEW.KBOU.WW.Y.0029.161217T0404Z-161217T1500Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- 904 PM MST FRI DEC 16 2016 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW, WHICH IS IN EFFECT UNTIL 8 AM MST SATURDAY. * TIMING...SNOW CONTINUING OVERNIGHT...DECREASING EARLY SATURDAY. * SNOW ACCUMULATIONS...4 TO 6 INCHES WITH SOME LOCALLY HEAVIER AMOUNTS. * WIND/VISIBILITY...NORTHEAST WINDS 5 TO 15 MPH WILL COMBINE WITH FALLING SNOW TO CREATE VISIBILITIES TO A QUARTER MILE AT TIMES. * IMPACTS...WINTER DRIVING CONDITIONS CAN BE EXPECTED WITH SNOWPACKED ROADS AND LIMITED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
578 WWUS45 KBOU 170821 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 121 AM MST SAT DEC 17 2016 ...WINTER STORM BRINGING HEAVY SNOW TO THE MOUNTAINS AND THE DENVER AREA ALONG WITH VERY COLD TEMPERATURES... .HEAVY SNOW WILL CONTINUE OVER THE MOUNTAINS THROUGH SUNRISE. THERE WILL ALSO BE AN AREA OF HEAVY SNOW EXTENDING FROM THE CENTRAL AND SOUTHERN PARTS OF THE DENVER METRO AREA EAST TOWARDS AKRON AND LIMON. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE COMMON IN THESE AREAS. THIS WILL CREATE SNOW COVERED ROADS WHICH MAY BECOME NEARLY IMPASSABLE DURING THE PERIOD OF HEAVY SNOWFALL. IN THESE AREAS TRAVEL SHOULD BE DELAYED IF POSSIBLE. CHECK THE LATEST ROAD CONDITIONS AND POSSIBLE CLOSURES AT WWW.COTRIP.ORG OR DIAL 511 FROM WITHIN COLORADO. THE SNOW WILL DIMINISH FROM THE NORTH AND WEST LATER TONIGHT AND SATURDAY MORNING...BUT VERY COLD TEMPERATURES WILL CONTINUE WITH DANGEROUS WIND CHILLS. COZ040-041-171630- /O.UPG.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ /O.EXB.KBOU.WS.W.0011.000000T0000Z-161217T1500Z/ /O.CON.KBOU.WC.Y.0002.161217T1200Z-161217T1900Z/ NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF AURORA, BRIGHTON, CITY OF DENVER, DENVER INTERNATIONAL AIRPORT, HIGHLANDS RANCH, LITTLETON, PARKER, CASTLE ROCK, ELBERT, FONDIS, KIOWA, AND LARKSPUR 121 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING IN EFFECT UNTIL 8 AM MST THIS MORNING... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 AM EARLY THIS MORNING TO NOON MST TODAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING, WHICH IS IN EFFECT UNTIL 8 AM MST THIS MORNING. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...SNOW WILL CONTINUE OVERNIGHT AND WILL BE HEAVY ACROSS THE CENTRAL AND SOUTHERN PARTS OF THE DENVER METRO AREA AND AREAS SOUTH AND EAST OF DENVER. THE SNOW WILL DECREASE SATURDAY MORNING. * SNOW ACCUMULATIONS...6 TO 12 INCHES. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES DOWN TO A QUARTER MILE IN HEAVY SNOW. ONLY MINOR DRIFTING OF THE SNOW. * WIND CHILL VALUES...15 TO 25 BELOW ZERO. * IMPACTS...ROADS WILL BE SNOW COVERED AND MAY BECOME IMPASSABLE DURING THE PERIOD OF HEAVY SNOW. COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. IF YOU MUST VENTURE OUTDOORS THIS MORNING...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ COZ045-171630- /O.EXB.KBOU.WS.W.0011.000000T0000Z-161217T1500Z/ /O.CON.KBOU.WC.W.0001.161217T1200Z-161217T1900Z/ /O.CON.KBOU.WC.Y.0002.000000T0000Z-161217T1200Z/ CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- INCLUDING THE CITIES OF BENNETT, BYERS, DEER TRAIL, AND LEADER 121 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING IN EFFECT UNTIL 8 AM MST THIS MORNING... ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... ...WIND CHILL WARNING REMAINS IN EFFECT FROM 5 AM EARLY THIS MORNING TO NOON MST TODAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING, WHICH IS IN EFFECT UNTIL 8 AM MST THIS MORNING. * TIMING...SNOW WILL CONTINUE OVERNIGHT AND WILL BE HEAVY AT TIMES. THE SNOW WILL DECREASE SATURDAY MORNING. * SNOW ACCUMULATIONS...6 TO 12 INCHES. * WIND CHILL VALUES FOR THE ADVISORY WILL RANGE FROM 15 TO 25 BELOW ZERO. WIND CHILL VALUES WILL DROP BELOW 25 DEGREES BELOW ZERO FROM 5 AM UNTIL NOON SATURDAY. * IMPACTS...ROADS WILL BE SNOW COVERED AND MAY BECOME IMPASSABLE DURING THE PERIOD OF HEAVY SNOW. THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. IF YOU MUST VENTURE OUTDOORS THIS MORNING...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ COZ036-039-171500- /O.UPG.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ /O.EXB.KBOU.WS.W.0011.000000T0000Z-161217T1500Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF BAILEY, CENTRAL CITY, EVERGREEN, GEORGETOWN, IDAHO SPRINGS, WESTCREEK, ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT 121 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING IN EFFECT UNTIL 8 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING, WHICH IS IN EFFECT UNTIL 8 AM MST THIS MORNING. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...SNOW CONTINUING OVERNIGHT AND WILL BE HEAVY AT TIMES FROM INTERSTATE 70 SOUTHWARD. THE SNOW WILL DECREASE SATURDAY MORNING. * SNOW ACCUMULATIONS...6 TO 12 INCHES. * WIND/VISIBILITY...LIGHT WINDS. VISIBILITIES AS LOW AS A QUARTER MILE IN HEAVY SNOW. * IMPACTS...ROADS WILL BE SNOW COVERED AND MAY BECOME IMPASSABLE DURING THE PERIOD OF HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. IF YOU MUST VENTURE OUTDOORS THIS MORNING...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ COZ046-049-171630- /O.EXA.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ /O.CON.KBOU.WC.W.0001.161217T1200Z-161217T1900Z/ /O.CON.KBOU.WC.Y.0002.000000T0000Z-161217T1200Z/ NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-WASHINGTON COUNTY- INCLUDING THE CITIES OF AGATE, HUGO, LIMON, MATHESON, AKRON, COPE, LAST CHANCE, AND OTIS 121 AM MST SAT DEC 17 2016 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM MST THIS MORNING... ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... ...WIND CHILL WARNING REMAINS IN EFFECT FROM 5 AM EARLY THIS MORNING TO NOON MST TODAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW, WHICH IS IN EFFECT UNTIL 8 AM MST THIS MORNING. * TIMING...AN AREA OF HEAVY SNOW WILL SPREAD FROM EAST OF DENVER AND AKRON INTO THE LIMON AREA DURING THE EARLY MORNING HOURS. THE SNOW WILL DIMINISH FROM NORTHWEST TO SOUTHEAST SATURDAY MORNING. * SNOW ACCUMULATIONS...4 TO 8 INCHES. * WIND/VISIBILITY...NORTH WINDS AT 15 TO 25 MPH WILL CAUSE DRIFTING SNOW. VISIBILITIES AS LOW AS A QUARTER MILE IN HEAVY SNOW. * WIND CHILL VALUES FOR THE ADVISORY WILL RANGE FROM 15 TO 25 BELOW ZERO. WIND CHILL VALUES WILL DROP BELOW 25 DEGREES BELOW ZERO FROM 5 AM UNTIL NOON SATURDAY. * IMPACTS...ROADS WILL BECOME SNOW COVERED AND TRAVEL WILL BECOME DIFFICULT. THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVELERS SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS...AND NOTE THAT CONDITIONS ARE WORSE IN THE DENVER AREA AND IN THE MOUNTAINS WEST OF DENVER. IF YOU MUST BE OUTSIDE THIS MORNING...WEAR CLOTHING THAT COVERS YOUR SKIN...INCLUDING YOUR FACE. THE WIND CHILL WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ031-171630- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS, AND RABBIT EARS PASS 121 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...HEAVY SNOW WILL DIMINISH THIS MORNING. * SNOW ACCUMULATIONS...FROM 12 TO 24 INCHES....HEAVIEST ABOVE TIMBERLINE AND WEST FACING SLOPES. * WIND/VISIBILITY...WEST TO SOUTHWEST WINDS OF 25 TO 45 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. VISIBILITIES MAY FALL BELOW A FEW HUNDRED FEET AT TIMES DUE TO HEAVY SNOW AND BLOWING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ033-034-171630- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF CAMERON PASS, LARAMIE AND MEDICINE BOW MOUNTAINS, RABBIT EARS RANGE, ROCKY MOUNTAIN NATIONAL PARK, WILLOW CREEK PASS, BERTHOUD PASS, BRECKENRIDGE, EAST SLOPES MOSQUITO RANGE, EAST SLOPES SOUTHERN GORE RANGE, EISENHOWER TUNNEL, INDIAN PEAKS, KENOSHA MOUNTAINS, MOUNT EVANS, WILLIAMS FORK MOUNTAINS, AND WINTER PARK 121 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...HEAVY SNOW WILL CONTINUE OVERNIGHT...THEN DIMINISH SATURDAY MORNING. * SNOW ACCUMULATIONS...12 TO 24 INCHES. * WIND/VISIBILITY...WEST TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS AROUND 50 MPH WILL PRODUCE BLOWING SNOW OVER THE HIGHER PASSES AND RIDGES THROUGH FRIDAY NIGHT. VISIBILITIES MAY FALL BELOW A FEW HUNDRED FEET AT TIMES IN HEAVY SNOWFALL AND BLOWING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS. TRAVEL RESTRICTIONS AND ROAD CLOSURES ARE HIGHLY POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS AND BLOWING SNOW ARE LIKELY... .WHICH WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ042-044-048-050-051-171630- /O.CON.KBOU.WC.W.0001.161217T1200Z-161217T1900Z/ /O.CON.KBOU.WC.Y.0002.000000T0000Z-161217T1200Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY-SEDGWICK COUNTY- PHILLIPS COUNTY- INCLUDING THE CITIES OF BRIGGSDALE, GROVER, PAWNEE BUTTES, RAYMER, STONEHAM, BRUSH, FORT MORGAN, GOODRICH, WIGGINS, CROOK, MERINO, STERLING, PEETZ, JULESBURG, OVID, SEDGWICK, AMHERST, HAXTUN, AND HOLYOKE 121 AM MST SAT DEC 17 2016 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... ...WIND CHILL WARNING REMAINS IN EFFECT FROM 5 AM EARLY THIS MORNING TO NOON MST TODAY... * WIND CHILL VALUES FOR THE ADVISORY WILL RANGE FROM 15 TO 25 BELOW ZERO. WIND CHILL VALUES WILL DROP BELOW 25 DEGREES BELOW ZERO FROM 5 AM UNTIL NOON SATURDAY. * IMPACTS...THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ037-171500- /O.EXA.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING THE CITIES OF FAIRPLAY, HARTSEL, LAKE GEORGE, AND SOUTH PARK 121 AM MST SAT DEC 17 2016 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW, WHICH IS IN EFFECT UNTIL 8 AM MST THIS MORNING. * TIMING...SNOW WILL BE HEAVY AT TIMES OVERNIGHT...DECREASING EARLY SATURDAY. * SNOW ACCUMULATIONS...4 TO 8 INCHES. * WIND/VISIBILITY...LIGHT WINDS. VISIBILITY DOWN TO A QUARTER MILE AT TIMES IN HEAVY SNOW. * WIND CHILL VALUES...15 TO 25 BELOW ZERO. * IMPACTS...ROADS WILL BECOME SNOW COVERED AND TRAVEL WILL BE DIFFICULT. THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ038-043-171630- /O.CON.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ /O.CON.KBOU.WC.Y.0002.161217T1200Z-161217T1900Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- CENTRAL AND SOUTH WELD COUNTY- INCLUDING THE CITIES OF FORT COLLINS, HEREFORD, LOVELAND, NUNN, EATON, FORT LUPTON, GREELEY, AND ROGGEN 121 AM MST SAT DEC 17 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 5 AM EARLY THIS MORNING TO NOON MST TODAY... * TIMING...SNOW WILL DIMINISH THROUGH THE OVERNIGHT HOURS. * SNOW ACCUMULATIONS...3 TO 6 INCHES. * WIND/VISIBILITY...NORTH NORTHEAST WINDS 10 TO 20 MPH WITH VISIBILITIES TO A HALF MILE IN SNOW. ONLY MINOR DRIFTING OF THE SNOW. * WIND CHILL VALUES...15 TO 25 BELOW ZERO. * IMPACTS...ROADS WILL BE SNOW COVERED AND TRAVEL WILL BE DIFFICULT DURING THE OVERNIGHT HOURS. THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ035-171500- /O.CON.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- INCLUDING THE CITIES OF ESTES PARK, GLENDEVEY, NEDERLAND, AND RED FEATHER LAKES 121 AM MST SAT DEC 17 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... * TIMING...SNOW WILL DIMINISH OVERNIGHT. * SNOW ACCUMULATIONS...5 TO 8 INCHES. * WIND/VISIBILITY...LIGHT WINDS WITH ONLY MINOR DRIFTING OF THE SNOW. VISIBILITIES DOWN TO A HALF MILE AT TIMES. * IMPACTS...WINTER DRIVING CONDITIONS CAN BE EXPECTED WITH SNOWPACKED ROADS AND LIMITED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ GIMMESTAD
202 WWUS45 KBOU 171302 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 602 AM MST SAT DEC 17 2016 ...WINTER STORM MOVING ONTO THE PLAINS THIS MORNING ALONG WITH VERY COLD TEMPERATURES... .HEAVY SNOW HAS SPREAD ONTO THE PLAINS EAST OF DENVER THIS MORNING WITH DECREASING SNOW IN THE MOUNTAINS AND THE DENVER AREA. AREAS AROUND LIMON WILL SEE DECREASING SNOW BY MID MORNING. ROADS REMAIN SNOW COVERED EARLY THIS MORNING MAKING FOR SLOW TRAVEL. CONDITIONS WILL IMPROVE LATER THIS MORNING...SO IT MAY BE WISE TO DELAY TRAVEL...ESPECIALLY EAST OF DENVER. CHECK THE LATEST ROAD CONDITIONS AND POSSIBLE CLOSURES AT WWW.COTRIP.ORG OR DIAL 511 FROM WITHIN COLORADO. THE SNOW WILL CONTINUE TO DIMINISH FROM THE NORTH AND WEST THIS MORNING...BUT VERY COLD TEMPERATURES WILL CONTINUE WITH DANGEROUS WIND CHILLS. COZ038-043-171900- /O.CAN.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ /O.CON.KBOU.WC.Y.0002.000000T0000Z-161217T1900Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- CENTRAL AND SOUTH WELD COUNTY- INCLUDING THE CITIES OF FORT COLLINS, HEREFORD, LOVELAND, NUNN, EATON, FORT LUPTON, GREELEY, AND ROGGEN 602 AM MST SAT DEC 17 2016 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. * WIND CHILL VALUES...15 TO 25 BELOW ZERO. * IMPACTS...SNOW COVERED ROADS CAN STILL BE EXPECTED THIS MORNING. THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU MUST VENTURE OUTDOORS THIS MORNING...MAKE SURE YOU WEAR A HAT AND GLOVES. && PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ COZ035-171415- /O.CAN.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- INCLUDING THE CITIES OF ESTES PARK, GLENDEVEY, NEDERLAND, AND RED FEATHER LAKES 602 AM MST SAT DEC 17 2016 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. A FEW FLURRIES ARE STILL POSSIBLE...AND TEMPERATURES WILL REMAIN QUITE COLD TODAY. $$ COZ045-171900- /O.CON.KBOU.WC.W.0001.000000T0000Z-161217T1900Z/ /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1500Z/ CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- INCLUDING THE CITIES OF BENNETT, BYERS, DEER TRAIL, AND LEADER 602 AM MST SAT DEC 17 2016 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... * TIMING...SNOW WILL DIMINISH THIS MORNING. * SNOW ACCUMULATIONS...TOTALS OF 6 TO 12 INCHES. * WIND CHILL VALUES WILL DROP AS LOW AS 25 DEGREES BELOW ZERO THIS MORNING. * IMPACTS...ROADS WILL BE SNOW COVERED AND TRAVEL WILL BE DIFFICULT UNTIL LATER THIS MORNING. THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. IF YOU MUST VENTURE OUTDOORS THIS MORNING...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ COZ040-041-171900- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1500Z/ /O.CON.KBOU.WC.Y.0002.000000T0000Z-161217T1900Z/ NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF AURORA, BRIGHTON, CITY OF DENVER, DENVER INTERNATIONAL AIRPORT, HIGHLANDS RANCH, LITTLETON, PARKER, CASTLE ROCK, ELBERT, FONDIS, KIOWA, AND LARKSPUR 602 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... * TIMING...SNOW WILL CONTINUE TO DECREASE THIS MORNING. * SNOW ACCUMULATIONS...AN ADDITIONAL INCH OR TWO IN AREAS SOUTH OF DENVER WITH LIGHTER SNOW FURTHER NORTH. STORM TOTALS WILL BE 4 TO 12 INCHES. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH WILL PRODUCE MINOR DRIFTING OF THE SNOW. * WIND CHILL VALUES...15 TO 25 BELOW ZERO. * IMPACTS...ROADS WILL BE SNOW COVERED AND TRAVEL WILL BE DIFFICULT. COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. IF YOU MUST VENTURE OUTDOORS THIS MORNING...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ COZ046-049-171900- /O.CON.KBOU.WC.W.0001.000000T0000Z-161217T1900Z/ /O.CON.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-WASHINGTON COUNTY- INCLUDING THE CITIES OF AGATE, HUGO, LIMON, MATHESON, AKRON, COPE, LAST CHANCE, AND OTIS 602 AM MST SAT DEC 17 2016 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... * TIMING...HEAVY SNOW WILL DIMINISH BY MID MORNING. * SNOW ACCUMULATIONS...TOTALS OF 4 TO 8 INCHES. * WIND/VISIBILITY...NORTH WINDS AT 15 TO 25 MPH WILL CAUSE DRIFTING SNOW. VISIBILITIES AS LOW AS A QUARTER MILE IN HEAVY SNOW. * WIND CHILL VALUES WILL DROP AS LOW AS 25 DEGREES BELOW ZERO THIS MORNING. * IMPACTS...ROADS WILL BE SNOW COVERED AND TRAVEL WILL BECOME DIFFICULT. THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVELERS SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS. IF YOU MUST BE OUTSIDE THIS MORNING...WEAR CLOTHING THAT COVERS YOUR SKIN...INCLUDING YOUR FACE. THE WIND CHILL WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ031-171800- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS, AND RABBIT EARS PASS 602 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...SNOW WILL DIMINISH THIS MORNING. * SNOW ACCUMULATIONS...FROM 12 TO 24 INCHES....HEAVIEST ABOVE TIMBERLINE AND WEST FACING SLOPES. * WIND/VISIBILITY...NORTHWEST WINDS OF 15 TO 30 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ033-034-171800- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF CAMERON PASS, LARAMIE AND MEDICINE BOW MOUNTAINS, RABBIT EARS RANGE, ROCKY MOUNTAIN NATIONAL PARK, WILLOW CREEK PASS, BERTHOUD PASS, BRECKENRIDGE, EAST SLOPES MOSQUITO RANGE, EAST SLOPES SOUTHERN GORE RANGE, EISENHOWER TUNNEL, INDIAN PEAKS, KENOSHA MOUNTAINS, MOUNT EVANS, WILLIAMS FORK MOUNTAINS, AND WINTER PARK 602 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...SNOW WILL DIMINISH THIS MORNING. * SNOW ACCUMULATIONS...12 TO 24 INCHES. * WIND/VISIBILITY...NORTHWEST WINDS OF 15 TO 30 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS. TRAVEL RESTRICTIONS AND ROAD CLOSURES ARE LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS AND BLOWING SNOW ARE LIKELY... WHICH WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ036-039-171500- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1500Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF BAILEY, CENTRAL CITY, EVERGREEN, GEORGETOWN, IDAHO SPRINGS, WESTCREEK, ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT 602 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... * TIMING...SNOW WILL DECREASE SATURDAY MORNING. * SNOW ACCUMULATIONS...TOTALS OF 6 TO 12 INCHES. * WIND/VISIBILITY...LIGHT WINDS. * IMPACTS...ROADS WILL BE SNOW COVERED AND TRAVEL WILL BE DIFFICULT EARLY THIS MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. IF YOU MUST VENTURE OUTDOORS THIS MORNING...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ COZ042-044-048-050-051-171900- /O.CON.KBOU.WC.W.0001.000000T0000Z-161217T1900Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY-SEDGWICK COUNTY- PHILLIPS COUNTY- INCLUDING THE CITIES OF BRIGGSDALE, GROVER, PAWNEE BUTTES, RAYMER, STONEHAM, BRUSH, FORT MORGAN, GOODRICH, WIGGINS, CROOK, MERINO, STERLING, PEETZ, JULESBURG, OVID, SEDGWICK, AMHERST, HAXTUN, AND HOLYOKE 602 AM MST SAT DEC 17 2016 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... * WIND CHILL VALUES WILL DROP AS LOW AS 25 DEGREES BELOW ZERO THIS MORNING. * IMPACTS...THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ047-171900- /O.EXA.KBOU.WC.Y.0002.000000T0000Z-161217T1900Z/ /O.EXA.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF FORDER, KARVAL, KUTCH, AND PUNKIN CENTER 602 AM MST SAT DEC 17 2016 ...WIND CHILL ADVISORY IN EFFECT UNTIL NOON MST TODAY... ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW, WHICH IS IN EFFECT UNTIL 8 AM MST THIS MORNING. A WIND CHILL ADVISORY HAS ALSO BEEN ISSUED. THIS WIND CHILL ADVISORY IS IN EFFECT UNTIL NOON MST TODAY. * TIMING...SNOW WILL BE HEAVY AT TIMES FOR A FEW HOURS THIS MORNING...THEN DIMINISH. * SNOW ACCUMULATIONS...2 TO 5 INCHES. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES DOWN TO A QUARTER MILE IN HEAVY SNOW. ONLY MINOR DRIFTING OF THE SNOW. * WIND CHILL VALUES...15 TO 25 BELOW ZERO. * IMPACTS...ROADS WILL BE SNOW COVERED AND TRAVEL MAY BECOME DIFFICULT DURING THE PERIOD OF HEAVY SNOW. COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVELERS SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS. IF YOU MUST BE OUTSIDE THIS MORNING...WEAR CLOTHING THAT COVERS YOUR SKIN...INCLUDING YOUR FACE. && $$ COZ037-171500- /O.CON.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING THE CITIES OF FAIRPLAY, HARTSEL, LAKE GEORGE, AND SOUTH PARK 602 AM MST SAT DEC 17 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... * TIMING...SNOW WILL BE HEAVY AT TIMES OVERNIGHT...DECREASING EARLY SATURDAY. * SNOW ACCUMULATIONS...4 TO 8 INCHES. * WIND/VISIBILITY...LIGHT WINDS. VISIBILITY DOWN TO A QUARTER MILE AT TIMES IN HEAVY SNOW. * WIND CHILL VALUES...15 TO 25 BELOW ZERO. * IMPACTS...ROADS WILL BECOME SNOW COVERED AND TRAVEL WILL BE DIFFICULT. THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
159 WWUS45 KBOU 171515 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 815 AM MST SAT DEC 17 2016 ...WINTER STORM MOVING ONTO THE PLAINS THIS MORNING ALONG WITH VERY COLD TEMPERATURES... .ACCUMULATING SNOWFALL HAS GENERALLY ENDED ON THE PLAINS ON NORTHEAST COLORADO ROUGHLY NORTH OF INTERSTATE 70. SOUTH OF THE INTERSTATE LIGHT TO IN SOME AREAS MODERATE SNOWFALL CONTINUES WITH THE HEAVIER SNOWFALL STILL OCCURRING ACROSS ELBERT AND LINCOLN COUNTIES. SNOWFALL IN THIS AREA SHOULD DIMINISH BY AROUND 10 AM MST. IN THE HIGH COUNTRY...ONLY ARES OF LIGHT SNOWFALL CONTINUES AND THEREFORE ADDITIONAL ACCUMULATIONS WILL BE MINIMAL. ROADS REMAIN SNOW COVERED THIS MORNING MAKING FOR SLOW TRAVEL. DRIVING CONDITIONS SHOULD IMPROVE LATER THIS MORNING.. IF YOU NEED TO TRAVEL THIS MORNING...ESPECIALLY UP INTO THE HIGH COUNTRY... CHECK THE LATEST ROAD CONDITIONS AND POSSIBLE CLOSURES AT WWW.COTRIP.ORG OR DIAL 511 FROM WITHIN COLORADO. FINALLY....VERY COLD TEMPERATURES AND LIGHT NORTHERLY WINDS WILL CONTINUE TO PRODUCE DANGEROUS WIND CHILLS THIS MORNING. COZ045-171900- /O.EXP.KBOU.WS.W.0011.000000T0000Z-161217T1500Z/ /O.CON.KBOU.WC.W.0001.000000T0000Z-161217T1900Z/ CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- INCLUDING THE CITIES OF BENNETT, BYERS, DEER TRAIL, AND LEADER 815 AM MST SAT DEC 17 2016 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... ...WINTER STORM WARNING EXPIRED AT 8 AM MST THIS MORNING... WIND CHILL VALUES AS LOW AS 25 DEGREES BELOW ZERO THIS MORNING. *IMPACTS...ROADS WILL BE SNOW COVERED AND TRAVEL WILL BE DIFFICULT UNTIL LATER THIS MORNING. THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. IF YOU MUST VENTURE OUTDOORS THIS MORNING...MAKE SURE YOU WEAR A HAT AND GLOVES. && PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ040-041-171900- /O.EXP.KBOU.WS.W.0011.000000T0000Z-161217T1500Z/ /O.CON.KBOU.WC.Y.0002.000000T0000Z-161217T1900Z/ NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF AURORA, BRIGHTON, CITY OF DENVER, DENVER INTERNATIONAL AIRPORT, HIGHLANDS RANCH, LITTLETON, PARKER, CASTLE ROCK, ELBERT, FONDIS, KIOWA, AND LARKSPUR 815 AM MST SAT DEC 17 2016 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... ...WINTER STORM WARNING EXPIRED AT 8 AM MST THIS MORNING... * WIND CHILL VALUES...AS LOW AS 15 TO 20 BELOW ZERO THIS MORNING * IMPACTS...ROADS WILL BE SNOW COVERED AND TRAVEL WILL BE DIFFICULT. COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. IF YOU MUST VENTURE OUTDOORS THIS MORNING...MAKE SURE YOU WEAR A HAT AND GLOVES. && PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ COZ036-039-171615- /O.EXP.KBOU.WS.W.0011.000000T0000Z-161217T1500Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF BAILEY, CENTRAL CITY, EVERGREEN, GEORGETOWN, IDAHO SPRINGS, WESTCREEK, ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT 815 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING EXPIRED AT 8 AM MST THIS MORNING... SNOWFALL WAS ON THE DECLINE ALONG THE FRONT RANGE AND WILL CONTINUE TO DO SO OVER THE NEXT COUPLE OF HOURS. ANY ADDITIONAL SNOW ACCUMULATION WILL BE MINIMAL...GENERALLY UNDER AN INCH. THEREFORE THE WINTER STORM WARNING WILL BE ALLOWED TO EXPIRE. $$ COZ046-049-171900- /O.EXP.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ /O.CON.KBOU.WC.W.0001.000000T0000Z-161217T1900Z/ NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-WASHINGTON COUNTY- INCLUDING THE CITIES OF AGATE, HUGO, LIMON, MATHESON, AKRON, COPE, LAST CHANCE, AND OTIS 815 AM MST SAT DEC 17 2016 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... ...WINTER WEATHER ADVISORY WILL EXPIRE AT 8 AM MST THIS MORNING... * WIND CHILL VALUES WILL DROP AS LOW AS 25 DEGREES BELOW ZERO THIS MORNING. * IMPACTS...ROADS WILL BE SNOW COVERED AND TRAVEL WILL BECOME DIFFICULT. THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVELERS SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS. IF YOU MUST BE OUTSIDE THIS MORNING...WEAR CLOTHING THAT COVERS YOUR SKIN...INCLUDING YOUR FACE. THE WIND CHILL WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ047-171900- /O.EXP.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ /O.CON.KBOU.WC.Y.0002.000000T0000Z-161217T1900Z/ SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF FORDER, KARVAL, KUTCH, AND PUNKIN CENTER 815 AM MST SAT DEC 17 2016 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... ...WINTER WEATHER ADVISORY EXPIRED AT 8 AM MST THIS MORNING... * WIND CHILL VALUES...15 TO 20 BELOW ZERO. * IMPACTS...ROADS WILL BE SNOW COVERED AND TRAVEL MAY BECOME DIFFICULT DURING THE PERIOD OF HEAVY SNOW. COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVELERS SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS. IF YOU MUST BE OUTSIDE THIS MORNING...WEAR CLOTHING THAT COVERS YOUR SKIN...INCLUDING YOUR FACE. && PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ COZ037-171615- /O.EXP.KBOU.WW.Y.0029.000000T0000Z-161217T1500Z/ CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING THE CITIES OF FAIRPLAY, HARTSEL, LAKE GEORGE, AND SOUTH PARK 815 AM MST SAT DEC 17 2016 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 8 AM MST THIS MORNING... * SNOWFALL HAS ENDED. TRAVELERS SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS. IF YOU MUST BE OUTSIDE THIS MORNING...WEAR CLOTHING THAT COVERS YOUR SKIN...INCLUDING YOUR FACE. THE WIND CHILL WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ031-171800- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS, AND RABBIT EARS PASS 815 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...SNOW WILL DIMINISH THIS MORNING. * SNOW ACCUMULATIONS...FROM 12 TO 24 INCHES....HEAVIEST ABOVE TIMBERLINE AND WEST FACING SLOPES. * WIND/VISIBILITY...NORTHWEST WINDS OF 15 TO 30 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ033-034-171800- /O.CON.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF CAMERON PASS, LARAMIE AND MEDICINE BOW MOUNTAINS, RABBIT EARS RANGE, ROCKY MOUNTAIN NATIONAL PARK, WILLOW CREEK PASS, BERTHOUD PASS, BRECKENRIDGE, EAST SLOPES MOSQUITO RANGE, EAST SLOPES SOUTHERN GORE RANGE, EISENHOWER TUNNEL, INDIAN PEAKS, KENOSHA MOUNTAINS, MOUNT EVANS, WILLIAMS FORK MOUNTAINS, AND WINTER PARK 815 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...SNOW WILL DIMINISH THIS MORNING. * SNOW ACCUMULATIONS...12 TO 24 INCHES. * WIND/VISIBILITY...NORTHWEST WINDS OF 15 TO 30 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. * IMPACTS...THE SNOW AND BLOWING SNOW WILL PRODUCE HAZARDOUS AND VERY DIFFICULT TRAVEL CONDITIONS ACROSS THE MOUNTAINS. TRAVEL RESTRICTIONS AND ROAD CLOSURES ARE LIKELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS AND BLOWING SNOW ARE LIKELY... WHICH WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ042-044-048-050-051-171900- /O.CON.KBOU.WC.W.0001.000000T0000Z-161217T1900Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY-SEDGWICK COUNTY- PHILLIPS COUNTY- INCLUDING THE CITIES OF BRIGGSDALE, GROVER, PAWNEE BUTTES, RAYMER, STONEHAM, BRUSH, FORT MORGAN, GOODRICH, WIGGINS, CROOK, MERINO, STERLING, PEETZ, JULESBURG, OVID, SEDGWICK, AMHERST, HAXTUN, AND HOLYOKE 815 AM MST SAT DEC 17 2016 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... * WIND CHILL VALUES WILL DROP AS LOW AS 25 DEGREES BELOW ZERO THIS MORNING. * IMPACTS...THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ038-043-171900- /O.CON.KBOU.WC.Y.0002.000000T0000Z-161217T1900Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- CENTRAL AND SOUTH WELD COUNTY- INCLUDING THE CITIES OF FORT COLLINS, HEREFORD, LOVELAND, NUNN, EATON, FORT LUPTON, GREELEY, AND ROGGEN 815 AM MST SAT DEC 17 2016 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... * WIND CHILL VALUES...15 TO 25 BELOW ZERO. * IMPACTS...SNOW COVERED ROADS CAN STILL BE EXPECTED THIS MORNING. THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU MUST VENTURE OUTDOORS THIS MORNING...MAKE SURE YOU WEAR A HAT AND GLOVES. A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$
378 WWUS45 KBOU 171633 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 933 AM MST SAT DEC 17 2016 ...WINTER STORM MOVING ONTO THE PLAINS THIS MORNING ALONG WITH VERY COLD TEMPERATURES... .AS OF MID-MORNING SNOWFALL HAD ENDED IN MOST AREAS ON THE PLAINS ROUGHLY NORTH OF INTERSTATE 70. SOUTH OF THE INTERSTATE A BAND OF LIGHT TO MODERATE SNOWFALL CONTINUES...HOWEVER SNOWFALL SHOULD END IN THIS AREA AS WELL BY AROUND MIDDAY. IN THE HIGH COUNTRY...AREAS MAINLY ALONG AND WEST OF THE CONTINENTAL DIVIDE WILL CONTINUE TO SEE PERIODS OF LIGHT SNOWFALL AT LEAST THROUGH EARLY THIS AFTERNOON WITH NEW ACCUMULATIONS GENERALLY UNDER 2 INCHES. CLEARING SKIES WILL THEN SPREAD SOUTH AND EAST OVER NORTH CENTRAL AND NORTHEAST COLORADO LATER THIS AFTERNOON. THIS WILL ALLOW FOR STRONG COOLING OVERNIGHT AND THE POSSIBILITY SETTING SOME NEW RECORD LOWS TONIGHT. ROADS REMAIN SNOW COVERED THIS MORNING MAKING FOR SLOW TRAVEL. DRIVING CONDITIONS SHOULD IMPROVE LATE THIS MORNING INTO EARLY AFTERNOON. IF YOU NEED TO TRAVEL THIS MORNING...PARTICULARLY UP INTO THE HIGH COUNTRY...CHECK THE LATEST ROAD CONDITIONS AND POSSIBLE CLOSURES AT WWW.COTRIP.ORG OR DIAL 511 FROM WITHIN COLORADO. FINALLY....VERY COLD TEMPERATURES AND NORTHERLY WINDS WILL CONTINUE TO PRODUCE DANGEROUS WIND CHILLS ON THE PLAINS FOR THE REMAINDER OF THE MORNING. COZ031-033-034-171745- /O.CAN.KBOU.WS.W.0011.000000T0000Z-161217T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS, RABBIT EARS PASS, CAMERON PASS, LARAMIE AND MEDICINE BOW MOUNTAINS, RABBIT EARS RANGE, ROCKY MOUNTAIN NATIONAL PARK, WILLOW CREEK PASS, BERTHOUD PASS, BRECKENRIDGE, EAST SLOPES MOSQUITO RANGE, EAST SLOPES SOUTHERN GORE RANGE, EISENHOWER TUNNEL, INDIAN PEAKS, KENOSHA MOUNTAINS, MOUNT EVANS, WILLIAMS FORK MOUNTAINS, AND WINTER PARK 933 AM MST SAT DEC 17 2016 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER STORM WARNING FOR THE NORTHERN MOUNTAINS OF COLORADO. SNOWFALL WILL CONTINUE TO DIMINISH IN THE HIGH COUNTRY THIS MORNING. POCKETS OF LIGHT ACCUMULATION IS STILL POSSIBLE UNTIL AROUND MIDDAY MAINLY ALONG AND WEST OF THE CONTINENTAL DIVIDE. ROADS REMAIN SNOW COVERED THIS MORNING MAKING FOR SLOW TRAVEL. DRIVING CONDITIONS SHOULD IMPROVE LATE THIS MORNING INTO EARLY AFTERNOON. IF YOU NEED TO TRAVEL THIS MORNING...PARTICULARLY UP INTO THE HIGH COUNTRY...CHECK THE LATEST ROAD CONDITIONS AND POSSIBLE CLOSURES AT WWW.COTRIP.ORG OR DIAL 511 FROM WITHIN COLORADO. $$ COZ042-044>046-048>051-171900- /O.CON.KBOU.WC.W.0001.000000T0000Z-161217T1900Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY- PHILLIPS COUNTY- INCLUDING THE CITIES OF BRIGGSDALE, GROVER, PAWNEE BUTTES, RAYMER, STONEHAM, BRUSH, FORT MORGAN, GOODRICH, WIGGINS, BENNETT, BYERS, DEER TRAIL, LEADER, AGATE, HUGO, LIMON, MATHESON, CROOK, MERINO, STERLING, PEETZ, AKRON, COPE, LAST CHANCE, OTIS, JULESBURG, OVID, SEDGWICK, AMHERST, HAXTUN, AND HOLYOKE 933 AM MST SAT DEC 17 2016 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... * WIND CHILL VALUES WILL DROP AS LOW AS 25 DEGREES BELOW ZERO THIS MORNING. * IMPACTS...THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ038-040-041-043-047-171900- /O.CON.KBOU.WC.Y.0002.000000T0000Z-161217T1900Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF FORT COLLINS, HEREFORD, LOVELAND, NUNN, AURORA, BRIGHTON, CITY OF DENVER, DENVER INTERNATIONAL AIRPORT, HIGHLANDS RANCH, LITTLETON, PARKER, CASTLE ROCK, ELBERT, FONDIS, KIOWA, LARKSPUR, EATON, FORT LUPTON, GREELEY, ROGGEN, FORDER, KARVAL, KUTCH, AND PUNKIN CENTER 933 AM MST SAT DEC 17 2016 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... * WIND CHILL VALUES...15 TO 20 BELOW ZERO. * IMPACTS...SNOW COVERED ROADS CAN STILL BE EXPECTED THIS MORNING. THE COLD TEMPERATURES AND WINDS WILL PRODUCE DANGEROUS WIND CHILL TEMPERATURES WITH POSSIBLE HYPOTHERMIA CONDITIONS WITH EXPOSED SKIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU MUST VENTURE OUTDOORS THIS MORNING...MAKE SURE YOU WEAR A HAT AND GLOVES. A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ BAKER
286 WWUS45 KBOU 171907 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1207 PM MST SAT DEC 17 2016 COZ042-044>046-048>051-172015- /O.EXP.KBOU.WC.W.0001.000000T0000Z-161217T1900Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY- PHILLIPS COUNTY- INCLUDING THE CITIES OF BRIGGSDALE, GROVER, PAWNEE BUTTES, RAYMER, STONEHAM, BRUSH, FORT MORGAN, GOODRICH, WIGGINS, BENNETT, BYERS, DEER TRAIL, LEADER, AGATE, HUGO, LIMON, MATHESON, CROOK, MERINO, STERLING, PEETZ, AKRON, COPE, LAST CHANCE, OTIS, JULESBURG, OVID, SEDGWICK, AMHERST, HAXTUN, AND HOLYOKE 1207 PM MST SAT DEC 17 2016 ...WIND CHILL WARNING HAS EXPIRED... SLIGHT WARMING AND LIGHTER WINDS HAVE REDUCED THE RISK OF HYPOTHERMIA AND SERIOUS DAMAGE TO EXPOSED SKIN. WIND CHILLS SHOULD REMAIN ABOVE 15 BELOW ZERO FOR THE REMAINDER OF THE AFTERNOON. $$ COZ038-040-041-043-047-172015- /O.EXP.KBOU.WC.Y.0002.000000T0000Z-161217T1900Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF FORT COLLINS, HEREFORD, LOVELAND, NUNN, AURORA, BRIGHTON, CITY OF DENVER, DENVER INTERNATIONAL AIRPORT, HIGHLANDS RANCH, LITTLETON, PARKER, CASTLE ROCK, ELBERT, FONDIS, KIOWA, LARKSPUR, EATON, FORT LUPTON, GREELEY, ROGGEN, FORDER, KARVAL, KUTCH, AND PUNKIN CENTER 1207 PM MST SAT DEC 17 2016 ...WIND CHILL ADVISORY HAS EXPIRED... SLIGHT WARMING AND LIGHTER WINDS HAVE REDUCED THE RISK OF HYPOTHERMIA AND SERIOUS DAMAGE TO EXPOSED SKIN. WIND CHILLS SHOULD REMAIN ABOVE 15 BELOW ZERO FOR THE REMAINDER OF THE AFTERNOON. $$ BAKER
What forecasters said that day
The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Denver/Boulder, CO wrote its last area forecast discussion before this wind chill advisory went out at Dec 16, 10:47 AM MST, 2 hours 11 minutes earlier.
Area forecast discussion, Dec 16, 10:47 AM MST, 2 hours 11 minutes before
Area Forecast Discussion National Weather Service Denver/Boulder CO 1047 AM MST Fri Dec 16 2016 .UPDATE... Issued at 1045 AM MST Fri Dec 16 2016 The arctic air has arrived. The arctic front backed into the Denver area before 7 AM MST this morning on gusty northeast winds. Temperatures plunged some 15-20 deg f in under 20 mins with its arrival. At the present time...plains arctic airmass is quite shallow...ranging from around 3500 feet deep near the northeast corner to barely a few hundred feet along the base of the foothills. Only now is the arctic air sweeping up the north side of the Palmer Divide into the Castle Rock-Elizabeth areas. However...the mesoscale models show the arctic air backing off the Palmer Divide next few hours will a resurgence of warmer and drier w-swly downslope winds off the foothills. Do not see that happening at lower elevations north of there where low stratocumulus clouds may linger off and on throughout the day. Can't rule out a few intermittent flurries from this shallow cloud desk...but nothing of consequence. As for temperatures on the plains...see little to no change in current readings over the next several hours with readings likely to hoover in the teens and lower 20s. in the high country...after a short lull in snowfall earlier this morning...the snowfall has returned and intensity continues to increase as the next push of moist maritime air spreads in from the west. Regional radar network indicates an expanding area of snowfall over northwest and west central Colorado and based on its forward speed...only a matter of time before our high country becomes fully engulfed by this snow field. CDOT and other cams already indicating increasing snowfall on western fringe of the CWA as well as up along the Continental Divide. In addition... models indicate a steady increase in 700-500 mb w-swly winds with 50-60kt wly winds at 550 mb after 18z today. That said...with intensifying snowfall and gusty winds in the 30-45kt range will probably generate areas of blowing and drifting snow...especially on the mtn passes and up around the Eisenhower Tunnel. Driving conditions are likely the deteriorate throughout the afternoon as snowfall rates on the higher west slopes could approach 2-2.5 inches per hour later this afternoon. Changes to winds and temperatures of the plains...and daytime snow coverage in the high country have been made to the grids and published forecast. && .SHORT TERM...(Today and tonight) Issued at 408 AM MST Fri Dec 16 2016 Forecast is looking on track this morning. There has been significant snow in the Park Range, Grand Mesa, and the West Elks the past few hours, and this will be spreading into Summit county and the Front Range over the next several hours. The strongest winds have shifted south a bit with decreasing speeds over most of our mountains. Just some minor adjustments at this time, mainly centered around the edge of the warm air in the westerly flow over the southern part of our area and the incoming cold air from the north. As usual the models are struggling to resolve the gradient, and the colder air should spread in faster than modeled. There are east to northeast winds in the models all day without shifting the gradient much. Expect that the reality will be a maintenance of the current temperature and wind pattern with some increase in speeds this morning, then the colder temperatures will push southward this afternoon with significant cooling across all of the plains. Meanwhile, the mountains will remain in the mild and very moist westerly flow. Still some question about the expected impact in the lower elevations of Grand and Jackson counties. These areas will probably have mostly snow, but the Kremmling area is still in the lower 40s and that may not change while the rest of those valleys may be warm enough to forestall accumulation. These places may wind up needing advisories, but they may go from mild and windy to colder with more snow but light winds. The upper trough comes through with a deeper push of cold air during the night. Models remain quite consistent with a solid snow band along the trough axis, producing a couple inches of snow across the plains. Mountain snow will be lighter overall with less wind and moisture and a more northwest component, but there is still strong cooling and places favored in northwest flow could still do pretty well with low density fluffy snow. The existing warning has this covered well. There will still be some wind overnight with the coldest air arriving, so we will likely need wind chill highlights for later tonight into Saturday morning. .LONG TERM...(Saturday through Thursday) Issued at 408 AM MST Fri Dec 16 2016 Models have an upper trough move across Colorado on Saturday with another weaker one to move across late Saturday night into Sunday morning. There is weaker zonal flow aloft for the rest of Sunday. Another weak upper trough moves in Sunday evening, with north and northwesterly flow aloft by 12Z Monday. The QG Omega fields have upward motion for the CWA Saturday morning, then downward energy is over the forecast area through Sunday night. The boundary layer flow is northerly upslope on Saturday. It is weak Saturday evening, then weak drainage is progged overnight. winds will be weak and variable on Sunday with weak drainage again Sunday night. Cross sections show fairly deep deep moisture over all the CWA Saturday morning, but from 18Z-21Z it decreases significantly. Models have shown this timing for several runs now. Saturday evening is pretty clear, but there could be some high clouds to move into the CWA after midnight. Sunday and Sunday night are quite dry. The QPF fields have very limited amounts of measurable snow for all the CWA Saturday morning. There is a tiny bit early Saturday afternoon in the high mountains south of I-70. There is nothing on the QPF fields after that until well into the extended period. For pops, will start out with "likely"s or better at 12Z Saturday morning than gradually get them down to nothing by mid/late afternoon in all areas. Will remove mentions of blowing snow over the high mountains and plains with expected winds speeds to be pretty light across all the forecast area. For temperatures, Saturday highs will be 14-24 C colder than today's highs. Sunday's highs will warm up 3-8 C over Saturday's highs. For the later days, Monday through Thursday, models have moderate west and northwesterly flow aloft Monday into early Tuesday. By Tuesday afternoon, the jet level speeds increase with another jet maximum to move across the state Wednesday associated with a weak upper trough. On Thursday, there is flat upper ridging over Colorado. There is a little moisture and minor QPF in the high mountains on Wednesday with the jet max and trough. Temperatures look to be near of a tad above seasonal normals all four days. && .AVIATION...(For the 18Z TAFS through 18Z Saturday afternoon) Issued at 1045 AM MST Fri Dec 16 2016 Arctic air has reached the Denver area...arriving just before 1400z this morning. Low clouds and gusty northeast winds followed the arrival of much colder air by about 30-40 mins. for the remainder of the day...arctic air and scattered to broken low cloud deck will remain in place in place for BJC and KDEN. Whereas KAPA on higher terrain south of Denver may actually see the arctic air to the east with intermittent intrusions of warmer and drier air off the foothills. Could see intermittent snow flurries from the low cloud deck but nothing in the way of accumulation. Its overnight when the metro area will likely see its snow accumulation...generally in the 2-4 inch range...with the greater accumulations beneath snow bands radiating northeastward off the foothills. Where these bands set up will be anyone's guess. The snow forecast will be updated as these bands set up. Bottomline... should see broken to overcast ILS cigs for the remainder of the day at Denver area terminals. However could see a brief breakout at KAPA should the downslope flow off the foothills develops as mentioned above. && .BOU WATCHES/WARNINGS/ADVISORIES... Winter Storm Warning until 11 AM MST Saturday for COZ031-033-034. && UPDATE...Baker SHORT TERM...Gimmestad LONG TERM...RJK AVIATION...Baker
Hazardous weather outlook, Dec 16, 11:36 AM MST, 1 hour 22 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1136 AM MST FRI DEC 16 2016 COZ030>051-171845- JACKSON COUNTY BELOW 9000 FEET- WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 1136 AM MST FRI DEC 16 2016 ...WINTRY WEATHER FOR THE OUTLOOK AREA THROUGH SATURDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT SNOWFALL WILL INCREASE IN THE HIGH COUNTRY THROUGH THE DAY AND BECOME HEAVY AT TIMES THIS AFTERNOON AND OVERNIGHT. ACCUMULATIONS BY LATE TONIGHT WILL RANGE FROM 6 TO 12 INCHES FOR MOST OF THE MOUNTAIN AREAS...WITH UP TO TWO FEET UP ALONG THE CONTINENTAL DIVIDE AND ON UPPER WEST FACING MOUNTAIN SLOPES. WINDS OF 20 TO 30 MPH WITH HIGHER GUSTS TO AROUND 55 MPH WILL PRODUCE BLOWING AND DRIFTING SNOW IN THE HIGH COUNTRY. GUSTY NORTHERLY WINDS ON THE PLAINS MAY ALSO PRODUCE AREAS OF BLOWING SNOW AS WELL AS DANGEROUSLY COLD WIND CHILLS. THE MOUNTAIN VALLEYS AND FOOTHILLS WILL SEE LIGHTER ACCUMULATIONS...WITH TOTALS ANYWHERE FROM 3 TO 8 INCHES BY SATURDAY MORNING. THE PLAINS WILL ALSO SEE LIGHT ACCUMULATIONS WITH AMOUNTS RANGING FROM AN INCH OR TWO IN THE FAR NORTHEAST CORNER TO UPWARDS OF 3 TO 6 INCHES NEAR THE FOOTHILLS AND ON THE PALMER DIVIDE. AN ARCTIC COLD FRONT WILL ALSO BRING MUCH COLDER TEMPERATURES TO THE PLAINS TODAY WITH TEMPERATURES FALLING THROUGH THE DAY. OVERNIGHT TEMPERATURES WILL BOTTOM OUT BELOW ZERO IN MOST AREAS WITH WIND CHILLS WELL BELOW ZERO IN THE MOUNTAINS AND NORTHEAST PLAINS. THE WINTRY WEATHER WILL HAMPER TRAVEL AS MANY ROADS WILL BECOME SNOW COVERED AND BLOWING SNOW MAY SIGNIFICANTLY REDUCE VISIBILITIES PARTICULARLY OVER THE MOUNTAIN PASSES AND UP AROUND THE EISENHOWER TUNNEL. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY LIGHT SNOW WILL CONTINUE EARLY SATURDAY MORNING BUT IT WILL DECREASE FROM NORTH TO SOUTH ACROSS THE FORECAST AREA BY LATE MORNING. THERE WILL BE A FEW LINGERING SNOW SHOWERS OVER THE HIGH MOUNTAINS DURING THE AFTERNOON. ADDITIONAL ACCUMULATIONS WILL BE UP TO 2 MORE INCHES OVER THE PLAINS AND UP TO 4 MORE INCHES OVER THE MOUNTAINS. THE GREATER DENVER AREA COULD SEE UP TO ONE MORE INCH. DRY WEATHER IS EXPECTED THROUGH TUESDAY IN THE MOUNTAINS...AND THROUGH THURSDAY OVER THE PLAINS. THERE WILL BE A CHANCE OF LIGHT SNOW IN THE MOUNTAINS TUESDAY NIGHT AND WEDNESDAY. AS FOR TEMPERATURES...AN ARCTIC AIRMASS WILL BE IN PLACE SATURDAY AND SUNDAY. IT WILL MODERATE BY MONDAY AND TEMPERATURES WILL BE NEAR OR A BIT ABOVE SEASONAL NORMALS MUCH OF NEXT WEEK. .SPOTTER INFORMATION STATEMENT... REPORTS OF SNOWFALL OR STRONG WINDS WILL BE APPRECIATED. BAKER/ENTREKIN
Nearby
Wind Chill Advisories in Colorado, 2016Every wind chill advisory in 2016
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.