Alert archive / Colorado / Winter Storm Warnings in 2012
Winter Storm Warning 4, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Feb 21, 2012, 8:56 PM MST for 9 counties in Colorado. It was in force for 38 hr. 42 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 21, 2012, 8:56 PM MST (03:56 UTC)
- Expired
- Feb 23, 2012, 11:00 AM MST
- In force
- 38 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Boulder County, CO, Clear Creek County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Summit County, CO
The radar
The Denver radar (KFTG), 102 km from the middle of the area, began a volume at 03:53 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 23, 4:30 AM MST | SNOW 0.2 | 3 Sw Longmont, CO | |
| Feb 23, 4:55 AM MST | SNOW 1.3 | 2 Sw Boulder, CO | DAVID SKAGGS RESEARCH CENTER NOAA |
| Feb 23, 5:28 AM MST | SNOW 2 | Arvada, CO | |
| Feb 23, 5:35 AM MST | SNOW 5.6 | Genesee, CO | |
| Feb 23, 5:49 AM MST | SNOW 0.6 | Niwot, CO | |
| Feb 23, 6:24 AM MST | SNOW 4.5 | 4 Ene Nederland, CO | |
| Feb 23, 6:30 AM MST | SNOW 0.5 | 5 W Loveland, CO | FLATIRON RESERVOIR |
| Feb 23, 6:33 AM MST | HEAVY SNOW 6.5 | Ken Caryl, CO | |
| Feb 23, 6:33 AM MST | HEAVY SNOW 7 | 3 S Golden, CO | LOOKOUT MOUNTAIN |
| Feb 23, 6:35 AM MST | HEAVY SNOW 7.5 | Evergreen, CO | |
| Feb 23, 6:41 AM MST | HEAVY SNOW 6.1 | Genesee, CO | |
| Feb 23, 7:00 AM MST | SNOW 0.4 | 2 N Longmont, CO | |
| Feb 23, 7:00 AM MST | SNOW 0.5 | 4 S Fort Collins, CO | |
| Feb 23, 7:00 AM MST | SNOW 0.9 | 5 Ene Boulder, CO | |
| Feb 23, 7:00 AM MST | SNOW 1 | 9 Wsw Rustic, CO | |
| Feb 23, 7:00 AM MST | SNOW 2.2 | 1 Sse Estes Park, CO | |
| Feb 23, 7:00 AM MST | SNOW 3 | 8 Sw Lake George, CO | |
| Feb 23, 7:01 AM MST | HEAVY SNOW 6 | 4 Ene Conifer, CO | |
| Feb 23, 7:05 AM MST | SNOW 1.5 | 13 Wnw Glendevey, CO | |
| Feb 23, 7:07 AM MST | SNOW 0.3 | 4 S Fort Collins, CO | |
| Feb 23, 7:07 AM MST | SNOW 4.5 | 4 S Evergreen, CO | |
| Feb 23, 7:07 AM MST | SNOW 5.5 | 1 S Evergreen, CO | |
| Feb 23, 7:15 AM MST | SNOW 2 | Antero Reservoir, CO | |
| Feb 23, 7:15 AM MST | SNOW 4 | Ken Caryl, CO | |
| Feb 23, 7:19 AM MST | SNOW 5.8 | 5 W Littleton, CO | |
| Feb 23, 7:20 AM MST | HEAVY SNOW 6 | Evergreen, CO | |
| Feb 23, 7:22 AM MST | SNOW 5.8 | 3 N Black Hawk, CO | |
| Feb 23, 7:30 AM MST | SNOW 2 | Cheesman Reservoir, CO | |
| Feb 23, 7:46 AM MST | SNOW 3.2 | 1 Sw Westminster, CO | |
| Feb 23, 7:50 AM MST | SNOW 2.1 | 4 Ne Virginia Dale, CO | |
| Feb 23, 8:00 AM MST | SNOW 2 | Bailey, CO | |
| Feb 23, 8:12 AM MST | SNOW 3 | Fairplay, CO | |
| Feb 23, 8:22 AM MST | SNOW 5.2 | 1 Se Breckenridge, CO | |
| Feb 23, 8:30 AM MST | HEAVY SNOW 6 | 1 Nne Lakewood, CO | |
| Feb 23, 8:33 AM MST | SNOW 4.3 | 2 W Wheat Ridge, CO | |
| Feb 23, 8:56 AM MST | SNOW 4 | 3 Ne Bergen Park, CO | |
| Feb 23, 9:30 AM MST | SNOW 2 | Westminster, CO | |
| Feb 23, 9:33 AM MST | SNOW 1.1 | 2 N Loveland, CO | |
| Feb 23, 9:49 AM MST | HEAVY SNOW 6 | Lakewood, CO | |
| Feb 23, 9:50 AM MST | SNOW 3 | 3 Sw Conifer, CO | |
| Feb 23, 10:19 AM MST | SNOW 4.8 | 7 N Glen Haven, CO | |
| Feb 23, 10:50 AM MST | HEAVY SNOW 7 | 4 Wsw Eldorado Springs, CO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 3.9 hours before the alert went out and 213 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
- 2485 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
384 WWUS45 KBOU 220356 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 856 PM MST TUE FEB 21 2012 ...HEAVY SNOWFALL THROUGH THURSDAY MORNING OVER THE NORTHERN MOUNTAINS OF COLORADO TONIGHT... .A STRONG MOIST NORTHWEST FLOW ALOFT WILL CONTINUE OVER NORTH CENTRAL COLORADO THROUGH THURSDAY...PRODUCING SNOW OVER THE GORE AND PARK RANGES AND OVER THE MOUNTAINS IN AND NEAR ROCKY MOUNTAIN NATIONAL PARK THROUGH THURSDAY. OVER THE GORE AND PARK RANGES...5 TO 10 INCHES OF SNOW HAS FALLEN AS OF TUESDAY EVENING. THE MOUNTAINS IN AND NEAR ROCKY MOUNTAIN NATIONAL PARK HAVE SEEN 2 TO 5 INCHES OF SNOW TODAY AS OF THURSDAY EVENING. COZ031-221200- /O.UPG.KBOU.WW.Y.0007.000000T0000Z-120222T1900Z/ /O.NEW.KBOU.WS.W.0004.120222T0356Z-120223T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 856 PM MST TUE FEB 21 2012 ...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING...WHICH IS IN EFFECT UNTIL 11 AM MST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...SNOW WILL CONTINUE THROUGH TONIGHT AND WEDNESDAY MORNING. SNOW WILL DECREASE OR COME TO AN END WEDNESDAY AFTERNOON AND EVENING. THE SNOW WILL INCREASE AGAIN LATE WEDNESDAY NIGHT AND THURSDAY MORNING. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 6 TO 12 INCHES OF SNOW WILL FALL TONIGHT AND WEDNESDAY MORNING. INCLUDING SNOWFALL FROM TODAY AND WITH MORE SNOWFALL TO COME THROUGH THURSDAY MORNING...TOTAL STORM ACCUMULATIONS WILL BE 15 TO 30 INCHES. * WINDS/VISIBILITY...WEST 20 TO 30 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SNOW AND BLOWING SNOW...AND ICY OR SNOWPACKED ROADS. PRECAUTIONARY/PREPAREDNESS ACTIONS... ROADS WILL BECOME ICY AND SNOWPACKED WITH HAZARDOUS TRAVEL CONDITIONS. VISIBILITIES WILL BE REDUCED AT TIMES. IF TRAVELING ALLOW EXTRA TIME TO REACH YOUR DESTINATION. TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ033-221200- /O.NEW.KBOU.WW.Y.0008.120222T0356Z-120223T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS 856 PM MST TUE FEB 21 2012 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 11 AM MST THURSDAY. * TIMING...|SNOW WILL CONTINUE THROUGH TONIGHT AND WEDNESDAY MORNING. SNOW WILL DECREASE OR COME TO AN END WEDNESDAY AFTERNOON AND EVENING. THE SNOW WILL INCREASE AGAIN LATE WEDNESDAY NIGHT AND THURSDAY MORNING. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 4 TO 10 INCHES OF SNOW WILL FALL TONIGHT AND WEDNESDAY MORNING. INCLUDING SNOWFALL FROM TODAY AND WITH MORE SNOWFALL TO COME THROUGH THURSDAY MORNING...TOTAL STORM ACCUMULATIONS WILL BE 6 TO 18 INCHES. MOST OF THE SNOW WILL FALL ON NORTHWEST FACING SLOPES AND ON THE HIGHER MOUNTAINS. * WINDS/VISIBILITY...VERY STRONG WINDS OF 30 TO 50 WITH GUSTS TO 75 TO 100 MPH OVER THE HIGHER EXPOSED AREAS WILL REDUCE VISIBILITY TO ZERO AT TIMES. * IMPACTS...IF VENTURING INTO THE HIGH BACK COUNTRY OF NORTHERN COLORADO EXPECTED VERY STRONG WINDS AND BLIZZARD CONDITIONS AT TIMES OVER THE RIDGES. PRECAUTIONARY/PREPAREDNESS ACTIONS... HIGH MOUNTAIN PASSES MAY BECOME IMPASSABLE DUE TO THE HEAVY SNOW AND STRONG WINDS. ROADS WILL BECOME ICY AND SNOWPACKED. VISIBILITY WILL FALL BELOW A QUARTER MILE AT TIMES. && $$
8 follow-up statements
990 WWUS45 KBOU 221156 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 456 AM MST WED FEB 22 2012 ...SNOW DECREASING TODAY...ONLY TO INCREASE AGAIN LATER TONIGHT... .ONE WAVE OF PACIFIC MOISTURE WILL PUSH OUT OF THE MOUNTAINS TODAY WITH A SHARP DECREASE IN SNOWFALL BY MID DAY. HOWEVER...ANOTHER ROUND OF HEAVIER SNOWFALL IS EXPECTED TO DEVELOP TONIGHT AS MORE PACIFIC MOISTURE AND A STRONG UPPER LEVEL DISTURBANCE MOVES INTO THE CENTRAL ROCKIES. OVER THE NORTHERN GORE AND PARK RANGES...6 TO 15 INCHES OF SNOW HAS FALLEN IN THE LAST 24 HOURS. THE FRONT RANGE MOUNTAINS AND SUMMIT COUNTY HAS GENERALLY SEEN 2 TO 8 INCHES OF SNOW SO FAR. COZ031-222000- /O.CON.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 456 AM MST WED FEB 22 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOW WILL GRADUALLY DECREASE DURING THE DAY...AND THEN BECOME HEAVY AGAIN LATE THIS EVENING AND CONTINUE OVERNIGHT. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY BY LATE THURSDAY MORNING. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 8 TO 15 INCHES WILL FALL BY THURSDAY MORNING. INCLUDING SNOWFALL FROM YESTERDAY AND LAST NIGHT...TOTAL STORM ACCUMULATIONS WILL BE 15 TO 30 INCHES. * WINDS/VISIBILITY...WEST 20 TO 30 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SNOW AND BLOWING SNOW...AND ICY OR SNOWPACKED ROADS. TRAVEL ON SECONDARY ROADS MAY BE IMPOSSIBLE DUE TO THE DEPTH OF NEW SNOW. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ033-222000- /O.CON.KBOU.WW.Y.0008.000000T0000Z-120223T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS 456 AM MST WED FEB 22 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOW WILL DECREASE BY THIS AFTERNOON. HOWEVER...ANOTHER ROUND OF HEAVIER SNOWFALL WILL DEVELOP LATE THIS EVENING AND THEN CONTINUE INTO EARLY THURSDAY MORNING. THE SNOW SHOULD GRADUALLY DECREASE LATE THURSDAY MORNING. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 8 TO 14 INCHES CAN BE EXPECTED THROUGH THURSDAY MORNING. INCLUDING SNOWFALL FROM YESTERDAY AND LAST NIGHT...TOTAL STORM ACCUMULATIONS WILL BE 10 TO 22 INCHES. * WINDS/VISIBILITY...VERY STRONG WINDS OF 30 TO 50 WITH GUSTS TO 75 TO 100 MPH OVER THE EXPOSED AREAS ABOVE TIMBERLINE WILL REDUCE VISIBILITY TO ZERO AT TIMES. * IMPACTS...IF VENTURING INTO THE BACK COUNTRY OF NORTHERN COLORADO EXPECTED VERY STRONG WINDS AND BLIZZARD CONDITIONS AT TIMES OVER THE RIDGES. ANY TRAVEL WILL BE HAZARDOUS. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... HIGH MOUNTAIN PASSES MAY BECOME IMPASSABLE DUE TO THE HEAVY SNOW AND STRONG WINDS. ROADS WILL BECOME ICY AND SNOWPACKED. VISIBILITY WILL FALL BELOW A QUARTER MILE AT TIMES. && $$ BARJENBRUCH/KRIEDERMAN
646 WWUS45 KBOU 221932 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1232 PM MST WED FEB 22 2012 ...SNOW INCREASING AGAIN LATER TONIGHT... .PACIFIC MOISTURE WILL BE MOVING BACK INTO THE NORTHERN MOUNTAINS THIS EVENING WHICH WILL PRODUCE ANOTHER ROUND OF SNOWFALL OVERNIGHT. OVER THE NORTHERN GORE AND PARK RANGES...ADDITIONAL ACCUMULATIONS OF 6 TO 12 INCHES WILL BE POSSIBLE. THE FRONT RANGE MOUNTAINS AND SUMMIT COUNTY COULD SEE 4 TO 8 INCHES OF SNOW. COZ031-230345- /O.CON.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 1232 PM MST WED FEB 22 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE THIS EVENING AND CONTINUE OVERNIGHT. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY BY THURSDAY AFTERNOON. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 6 TO 12 INCHES WILL FALL BY THURSDAY MORNING. * WINDS/VISIBILITY...WEST 20 TO 30 MPH WITH GUSTS TO 45 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SNOW AND BLOWING SNOW...AND ICY OR SNOWPACKED ROADS. TRAVEL ON SECONDARY ROADS MAY BE IMPOSSIBLE DUE TO THE DEPTH OF NEW SNOW. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ033-230345- /O.CON.KBOU.WW.Y.0008.000000T0000Z-120223T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS 1232 PM MST WED FEB 22 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOWFALL WILL DEVELOP LATE THIS EVENING AND THEN CONTINUE INTO EARLY THURSDAY MORNING. THE SNOW SHOULD GRADUALLY DECREASE THURSDAY AFTERNOON. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 4 TO 8 INCHES CAN BE EXPECTED THROUGH THURSDAY MORNING. * WINDS/VISIBILITY...VERY STRONG WINDS OF 30 TO 50 WITH GUSTS TO 70 TO 90 MPH OVER THE EXPOSED AREAS ABOVE TIMBERLINE WILL REDUCE VISIBILITY TO ZERO AT TIMES. * IMPACTS...IF VENTURING INTO THE BACK COUNTRY OF NORTHERN COLORADO EXPECTED VERY STRONG WINDS AND BLIZZARD CONDITIONS AT TIMES OVER THE RIDGES. ANY TRAVEL WILL BE HAZARDOUS. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... HIGH MOUNTAIN PASSES MAY BECOME IMPASSABLE DUE TO THE HEAVY SNOW AND STRONG WINDS. ROADS WILL BECOME ICY AND SNOWPACKED. VISIBILITY WILL FALL BELOW A QUARTER MILE AT TIMES. && $$
482 WWUS45 KBOU 222306 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 406 PM MST WED FEB 22 2012 ...SNOW INCREASING AGAIN LATER TONIGHT... .PACIFIC MOISTURE WILL BE MOVING BACK INTO THE NORTHERN MOUNTAINS OF COLORADO THIS EVENING WHICH WILL PRODUCE ANOTHER ROUND OF SNOWFALL OVERNIGHT. OVER THE NORTHERN GORE AND PARK RANGES... ADDITIONAL ACCUMULATIONS OF 5 TO 8 INCHES WILL BE POSSIBLE. THE FRONT RANGE MOUNTAINS AND SUMMIT COUNTY COULD SEE 4 TO 6 INCHES OF SNOW. COZ031-230715- /O.CON.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 406 PM MST WED FEB 22 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE THIS EVENING AND CONTINUE OVERNIGHT. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY BY THURSDAY AFTERNOON. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 5 TO 8 INCHES WILL FALL BY THURSDAY MORNING. * WINDS/VISIBILITY...WEST 20 TO 30 MPH WITH GUSTS TO 50 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SNOW AND BLOWING SNOW...AND ICY OR SNOWPACKED ROADS. TRAVEL ON SECONDARY ROADS MAY BE IMPOSSIBLE DUE TO THE DEPTH OF NEW SNOW. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ033-230715- /O.CON.KBOU.WW.Y.0008.000000T0000Z-120223T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS 406 PM MST WED FEB 22 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOWFALL WILL DEVELOP LATE THIS EVENING AND THEN CONTINUE INTO EARLY THURSDAY MORNING. THE SNOW SHOULD GRADUALLY DECREASE THURSDAY AFTERNOON. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 4 TO 6 INCHES CAN BE EXPECTED THROUGH THURSDAY MORNING. * WINDS/VISIBILITY...VERY STRONG WINDS OF 30 TO 50 WITH GUSTS TO 80 MPH OVER THE EXPOSED AREAS ABOVE TIMBERLINE WILL REDUCE VISIBILITY TO ZERO AT TIMES. * IMPACTS...IF VENTURING INTO THE BACK COUNTRY OF NORTHERN COLORADO EXPECTED VERY STRONG WINDS AND BLIZZARD CONDITIONS AT TIMES OVER THE RIDGES. ANY TRAVEL WILL BE HAZARDOUS. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... HIGH MOUNTAIN PASSES MAY BECOME IMPASSABLE DUE TO THE HEAVY SNOW AND STRONG WINDS. ROADS WILL BECOME ICY AND SNOWPACKED. VISIBILITY WILL FALL BELOW A QUARTER MILE AT TIMES. && $$
416 WWUS45 KBOU 230325 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 825 PM MST WED FEB 22 2012 ...SNOW INCREASING AGAIN LATER TONIGHT... .PACIFIC MOISTURE WILL BE CONTINUE TO STREAM OVER THE NORTHERN MOUNTAINS OF COLORADO TONIGHT WHICH WILL SNOW OVERNIGHT AND INTO THURSDAY. OVER THE NORTHERN GORE AND PARK RANGES... ADDITIONAL ACCUMULATIONS OF 6 TO 12 INCHES WILL BE POSSIBLE. THE FRONT RANGE MOUNTAINS AND SUMMIT COUNTY COULD SEE 5 TO 10 INCHES OF SNOW. COZ031-231200- /O.CON.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 825 PM MST WED FEB 22 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE THIS EVENING AND CONTINUE OVERNIGHT. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY BY THURSDAY AFTERNOON. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 6 TO 12 INCHES WILL FALL BY NOON THURSDAY. * WINDS/VISIBILITY...WEST 20 TO 30 MPH WITH GUSTS TO 50 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SNOW AND BLOWING SNOW...AND ICY OR SNOWPACKED ROADS. TRAVEL ON SECONDARY ROADS MAY BE IMPOSSIBLE DUE TO THE DEPTH OF NEW SNOW. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ033-231200- /O.CON.KBOU.WW.Y.0008.000000T0000Z-120223T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS 825 PM MST WED FEB 22 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOWFALL WILL INTENSIFY LATE THIS EVENING AND THEN CONTINUE INTO EARLY THURSDAY MORNING. THE SNOW SHOULD GRADUALLY DECREASE THURSDAY AFTERNOON. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 5 TO 10 INCHES CAN BE EXPECTED BY NOON THURSDAY. * WINDS/VISIBILITY...VERY STRONG WINDS OF 30 TO 50 WITH GUSTS TO 80 MPH OVER THE EXPOSED AREAS ABOVE TIMBERLINE WILL REDUCE VISIBILITY TO ZERO AT TIMES. * IMPACTS...IF VENTURING INTO THE BACK COUNTRY OF NORTHERN COLORADO EXPECTED VERY STRONG WINDS AND BLIZZARD CONDITIONS AT TIMES OVER THE RIDGES. ANY TRAVEL WILL BE HAZARDOUS. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... HIGH MOUNTAIN PASSES MAY BECOME IMPASSABLE DUE TO THE HEAVY SNOW AND STRONG WINDS. ROADS WILL BECOME ICY AND SNOWPACKED. VISIBILITY WILL FALL BELOW A QUARTER MILE AT TIMES. && $$
262 WWUS45 KBOU 230618 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1118 PM MST WED FEB 22 2012 ...HEAVY SNOW AND STRONG WINDS WILL CREATE NEAR BLIZZARD CONDITIONS IN THE MOUNTAINS OVERNIGHT... .A STRONG JET STREAM ALOFT COMBINED WITH AN UPPER LEVEL DISTURBANCE AND COLD FRONT WILL BRING HEAVY SNOW AND VERY STRONG WINDS TO THE MOUNTAINS OVERNIGHT AND INTO EARLY THURSDAY MORNING. VISIBILITIES WILL BE REDUCED TO ZERO AT TIMES OVER THE HIGHER MOUNTAIN PASSES. OVERNIGHT TRAVEL THROUGH THE HIGH COUNTRY IS NOT RECOMMENDED...AND CONDITIONS WILL ONLY SLOWLY IMPROVE THURSDAY MORNING. COZ033-231430- /O.UPG.KBOU.WW.Y.0008.000000T0000Z-120223T1800Z/ /O.EXA.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER 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 1118 PM MST WED FEB 22 2012 ...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 11 AM MST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...SNOW WILL BE HEAVY AT TIMES OVERNIGHT WITH SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR. THE SNOW WILL GRADUALLY DECREASE BY LATE THURSDAY MORNING. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 5 TO 12 INCHES CAN BE EXPECTED BY NOON THURSDAY. * WINDS/VISIBILITY...VERY STRONG WINDS OF 30 TO 50 WITH GUSTS TO 80 MPH OVER THE EXPOSED AREAS ABOVE TIMBERLINE WILL REDUCE VISIBILITY TO ZERO AT TIMES. * IMPACTS...IF VENTURING INTO THE BACK COUNTRY OF NORTHERN COLORADO EXPECTED VERY STRONG WINDS AND BLIZZARD CONDITIONS IN OPEN AREAS AND OVER THE HIGHER MOUNTAIN PASSES. ANY TRAVEL WILL BE HAZARDOUS. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ034-231430- /O.EXA.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...BERTHOUD PASS...BRECKENRIDGE... EAST SLOPES MOSQUITO RANGE...EAST SLOPES SOUTHERN GORE RANGE... EISENHOWER TUNNEL...INDIAN PEAKS...KENOSHA MOUNTAINS... MOUNT EVANS...WILLIAMS FORK MOUNTAINS...WINTER PARK 1118 PM MST WED FEB 22 2012 ...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 11 AM MST THURSDAY. * TIMING...SNOW WILL BECOME HEAVY OVERNIGHT AND CONTINUE INTO EARLY THURSDAY MORNING WITH SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR. THE SNOW WILL GRADUALLY DECREASE BY LATE THURSDAY MORNING. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 5 TO 12 INCHES CAN BE EXPECTED BY NOON THURSDAY. * WINDS/VISIBILITY...VERY STRONG WINDS OF 30 TO 50 WITH GUSTS TO 80 MPH OVER THE EXPOSED AREAS ABOVE TIMBERLINE WILL REDUCE VISIBILITY TO ZERO AT TIMES. * IMPACTS...TRAVEL THROUGH THE COLORADO HIGH COUNTRY INTO EARLY THURSDAY MORNING WILL BE EXTREMELY DANGEROUS AND IS NOT RECOMMENDED. ROAD CLOSURES WILL BE POSSIBLE. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ031-231430- /O.CON.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 1118 PM MST WED FEB 22 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOW WILL BE HEAVY OVERNIGHT...AND THEN GRADUALLY DECREASE THURSDAY MORNING. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE COMMON. THE SNOW WILL GRADUALLY DECREASE BY LATE THURSDAY MORNING. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 6 TO 14 INCHES WILL FALL BY NOON THURSDAY. * WINDS/VISIBILITY...WEST 20 TO 30 MPH WITH GUSTS TO 50 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SNOW AND BLOWING SNOW...AND ICY OR SNOWPACKED ROADS. TRAVEL ON SECONDARY ROADS MAY BE IMPOSSIBLE DUE TO THE DEPTH OF NEW SNOW. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ BARJENBRUCH
335 WWUS45 KBOU 231137 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 437 AM MST THU FEB 23 2012 ...HEAVY SNOW AND STRONG WINDS WILL CREATE NEAR BLIZZARD CONDITIONS IN THE MOUNTAINS EARLY THIS MORNING... ...HAZARDOUS TRAVEL PALMER DIVIDE AND PORTIONS OF THE DENVER METRO AREA... .A STRONG JET STREAM ALOFT COMBINED WITH AN UPPER LEVEL DISTURBANCE AND COLD FRONT WILL BRING HEAVY SNOW AND VERY STRONG WINDS TO THE MOUNTAINS EARLY THIS MORNING. VISIBILITIES WILL BE REDUCED TO ZERO AT TIMES OVER THE HIGHER MOUNTAIN PASSES. OVERNIGHT TRAVEL THROUGH THE HIGH COUNTRY IS NOT RECOMMENDED...AND CONDITIONS WILL ONLY SLOWLY IMPROVE THURSDAY MORNING. COZ031-231800- /O.CON.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 437 AM MST THU FEB 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...SNOW WILL BE HEAVY EARLY THIS MORNING...AND THEN GRADUALLY DECREASE LATE THIS MORNING. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE COMMON. THE SNOW WILL GRADUALLY DECREASE BY LATE THURSDAY MORNING. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 3 TO 6 INCHES WILL FALL THIS MORNING. * WINDS/VISIBILITY...WEST 20 TO 30 MPH WITH GUSTS TO 50 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SNOW AND BLOWING SNOW...AND ICY OR SNOWPACKED ROADS. TRAVEL ON SECONDARY ROADS MAY BE IMPOSSIBLE DUE TO THE DEPTH OF NEW SNOW. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ033-034-231800- /O.CON.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ 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...WINTER PARK 437 AM MST THU FEB 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...HEAVY SNOW WILL GRADUALLY DECREASE LATE THIS MORNING. UNTIL THEN...SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE COMMON. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 4 TO 8 INCHES CAN BE EXPECTED BY NOON. * WINDS/VISIBILITY...STRONG WINDS OF 20 TO 30 WITH GUSTS AROUND 65 MPH OVER THE EXPOSED AREAS ABOVE TIMBERLINE WILL REDUCE VISIBILITY TO ZERO AT TIMES. * IMPACTS...TRAVEL INTO THE COLORADO HIGH COUNTRY EARLY THIS MORNING WILL BE EXTREMELY DANGEROUS AND IS NOT RECOMMENDED. ROAD CLOSURES INCLUDING I-70 THROUGH SUMMIT COUNTY WILL BE POSSIBLE THIS MORNING. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ039-040-231500- /O.NEW.KBOU.WW.Y.0009.120223T1137Z-120223T1500Z/ BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER 437 AM MST THU FEB 23 2012 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 8 AM MST THIS MORNING. * TIMING...SNOW WILL DECREASE BETWEEN 6 AND 8 AM. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL UP TO 2 INCHES MAINLY IN THE SOUTHERN SUBURBS. * WINDS/VISIBILITY...ONE QUARTER MILE OR LESS IN THE HEAVY SNOW. * IMPACTS...THE EARLY MORNING COMMUTE WILL BE HAZARDOUS WITH SNOW AND SLUSH COVERED ROADS. THE SOUTHERN HALF OF THE METRO AREA WILL SEE THE WORST CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... ROADS WILL BE SLUSHY AND SNOW COVERED EARLY THIS MORNING CAUSING HAZARDOUS DRIVING CONDITIONS. WHEN DRIVING SLOW DOWN AND LEAVE ENOUGH ROOM BETWEEN YOU AND THE VEHICLE IN FRONT OF YOU. ALLOW EXTRA TIME FOR THE MORNING COMMUTE. && $$ COZ036-041-231800- /O.NEW.KBOU.WW.Y.0009.120223T1137Z-120223T1800Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK...CASTLE ROCK...ELBERT... KIOWA...LARKSPUR...SIMLA 437 AM MST THU FEB 23 2012 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 11 AM MST THIS MORNING. * TIMING...SNOW WILL DECREASE BETWEEN 8 AND 11 AM. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 1 TO 4 INCHES. * WINDS/VISIBILITY...ONE QUARTER MILE OR LESS IN HEAVY SNOW. * IMPACTS...THE MORNING COMMUTE WILL BE HAZARDOUS WITH SNOW AND SLUSH COVERED ROADS. PRECAUTIONARY/PREPAREDNESS ACTIONS... ROADS WILL BE SLUSHY AND SNOW COVERED EARLY THIS MORNING CAUSING HAZARDOUS DRIVING CONDITIONS. WHEN DRIVING SLOW DOWN AND LEAVE ENOUGH ROOM BETWEEN YOU AND THE VEHICLE IN FRONT OF YOU. ALLOW EXTRA TIME FOR THE MORNING COMMUTE. && $$ BARJENBRUCH
059 WWUS45 KBOU 231528 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 828 AM MST THU FEB 23 2012 ...SNOW DIMINISHING BUT STILL DIFFICULT TRAVEL WEST AND SOUTH OF DENVER THIS MORNING... .SNOW SHOWERS WERE DIMINISHING THIS MORNING AS A QUICK MOVING WEATHER SYSTEM MOVES AWAY FROM THE DENVER AREA. THERE WILL STILL BE AREAS OF MODERATE TO HEAVY SNOW SHOWERS IN THE MOUNTAINS WEST OF DENVER AND IN DOUGLAS AND ELBERT COUNTIES THIS MORNING...AND STRONG WINDS WILL CONTINUE TO PRODUCE BLOWING SNOW OVER THE HIGHER MOUNTAINS TODAY. AS OF 8 AM...BERTHOUD AND LOVELAND PASSES WERE CLOSED AND CHAIN LAWS WERE IN EFFECT ON MOST HIGHWAYS IN THE MOUNTAINS WEST OF DENVER. MOUNTAIN TRAVELERS SHOULD CHECK THE LATEST ROAD CONDITIONS AT WWW.COTRIP.ORG OR BY CALLING 511. COZ039-040-231630- /O.EXP.KBOU.WW.Y.0009.000000T0000Z-120223T1500Z/ BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER 828 AM MST THU FEB 23 2012 ...WINTER WEATHER ADVISORY HAS EXPIRED... SNOW SHOWERS WILL END THIS MORNING. SOME LOCATIONS IN THE SOUTHERN SUBURBS MAY RECEIVE AN ADDITIONAL INCH OF SNOW. $$ COZ031-231800- /O.CON.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 828 AM MST THU FEB 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...SNOW WILL CONTINUE TO DECREASE THIS MORNING. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 1 TO 3 INCHES WILL FALL THIS MORNING. * WINDS/VISIBILITY...WEST 20 TO 30 MPH WITH GUSTS TO 50 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SNOW AND BLOWING SNOW...AND ICY OR SNOWPACKED ROADS. TRAVEL ON SECONDARY ROADS MAY BE IMPOSSIBLE DUE TO THE DEPTH OF NEW SNOW. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE DIFFICULT AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE LATER TODAY. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ033-034-231800- /O.CON.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 828 AM MST THU FEB 23 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...SNOW WILL DIMINISH THIS MORNING...BUT THERE WILL STILL BE SOME HEAVY SHOWERS. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF 2 TO 4 INCHES CAN BE EXPECTED THIS MORNING. * WINDS/VISIBILITY...STRONG WINDS OF 20 TO 40 WITH GUSTS TO 60 MPH OVER THE EXPOSED AREAS ABOVE TIMBERLINE WILL PRODUCE NEAR BLIZZARD CONDITIONS. * IMPACTS...TRAVEL WILL BE DIFFICULT OR IMPOSSIBLE OVER THE HIGHER PASSES THIS MORNING. CONDITIONS WILL IMPROVE AT LOWER ELEVATIONS...BUT ROADS WILL BE SNOWPACKED OR SLUSHY. * OTHER IMPACTS...CONSIDERABLE AVALANCHE DANGER REMAINS IN PLACE DUE TO EXISTING SNOW CONDITIONS AND ADDITIONAL SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE DIFFICULT TO IMPOSSIBLE OVER THE HIGHER MOUNTAINS THIS MORNING. CONDITIONS WILL GRADUALLY IMPROVE IN THE LOWER ELEVATIONS...BUT ROADS WILL STILL BE SNOWPACKED OR SLUSHY. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE LATER TODAY. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ036-041-231800- /O.CON.KBOU.WW.Y.0009.000000T0000Z-120223T1800Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK...CASTLE ROCK...ELBERT... KIOWA...LARKSPUR...SIMLA 828 AM MST THU FEB 23 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...SNOW WILL DECREASE THIS MORNING. * SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL OF UP TO 2 INCHES. * WINDS/VISIBILITY...NORTH WINDS AT 15 TO 25 MPH MAINLY EAST OF INTERSTATE 25. * IMPACTS...THE MORNING COMMUTE WILL BE HAZARDOUS WITH SNOW AND SLUSH COVERED ROADS. PRECAUTIONARY/PREPAREDNESS ACTIONS... ROADS WILL BE SLUSHY AND SNOW COVERED EARLY THIS MORNING CAUSING HAZARDOUS DRIVING CONDITIONS. WHEN DRIVING SLOW DOWN AND LEAVE ENOUGH ROOM BETWEEN YOU AND THE VEHICLE IN FRONT OF YOU. ALLOW EXTRA TIME FOR THE MORNING COMMUTE...OR CONSIDER DELAYING TRAVEL AS CONDITIONS WILL BE IMPROVING LATER THIS MORNING. && $$ GIMMESTAD
671 WWUS45 KBOU 231807 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1107 AM MST THU FEB 23 2012 COZ031-231915- /O.EXP.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 1107 AM MST THU FEB 23 2012 ...WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... THE SNOW HAS BEEN DECREASING IN COVERAGE AND INTENSITY...AND WILL CONTINUE TO DECREASE THROUGH THE AFTERNOON. AREAS OF LIGHT SNOW WILL CONTINUE...WITH ONLY LIGHT ACCUMULATIONS EXPECTED. ROADS WILL REMAIN SNOWPACKED AND ICY. $$ COZ033-034-231915- /O.EXP.KBOU.WS.W.0004.000000T0000Z-120223T1800Z/ 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...WINTER PARK 1107 AM MST THU FEB 23 2012 ...WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... THE SNOW AND WIND HAS BEEN ON THE DECREASE...AND IS EXPECTED TO CONTINUE TO DECREASE THROUGH THE AFTERNOON. AREAS OF LIGHT SNOW WILL STILL CONTINUE...WITH ONLY LIGHT ACCUMULATIONS EXPECTED. AREAS OF BLOWING SNOW WILL STILL PERSIST...MAINLY OVER THE HIGHER MOUNTAIN PASSES. ROADS WILL REMAIN SNOWPACKED AND ICY. $$ COZ036-041-231915- /O.EXP.KBOU.WW.Y.0009.000000T0000Z-120223T1800Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK...CASTLE ROCK...ELBERT... KIOWA...LARKSPUR...SIMLA 1107 AM MST THU FEB 23 2012 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING... SCATTERED SNOW SHOWERS CAN BE EXPECTED THROUGH THE AFTERNOON... WITH LITTLE OR NO ADDITIONAL ACCUMULATION. $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 8:56 PM MST | Winter Weather Advisory | BOU | Boulder, Grand, Jackson, Larimer | 26 hr |
Nearby
Winter Storm Warnings in Colorado, 2012Every winter storm warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.