Alert archive / Colorado / Winter Storm Warnings in 2017
Winter Storm Warning 2, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Jan 5, 2017, 11:10 AM MST for 10 counties in Colorado. It was in force for 4 hr. 6 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
- Jan 5, 2017, 11:10 AM MST (18:10 UTC)
- Expired
- Jan 5, 2017, 3:19 PM MST
- In force
- 4 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Arapahoe County, CO, Boulder County, CO, Clear Creek County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Grand County, CO, Jefferson County, CO, Park County, CO, Summit County, CO
The radar
The Denver radar (KFTG), 68 km from the middle of the area, began a volume at 18:10 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 |
|---|---|---|---|
| Jan 5, 11:15 AM MST | SNOW 5.5 | Centennial, CO | |
| Jan 5, 12:05 PM MST | SNOW 11 | 3 Nw Louisville, CO | |
| Jan 5, 12:15 PM MST | HEAVY SNOW 9.3 | 1 Nnw Louisville, CO | |
| Jan 5, 12:30 PM MST | SNOW 4.4 | 1 Nne Evergreen, CO | |
| Jan 5, 1:00 PM MST | SNOW 4 | 3 N Lone Tree, CO | STORM TOTAL |
| Jan 5, 2:22 PM MST | SNOW 5.5 | 2 Ne Morrison, 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 (KDEN), launched 12:00Z, 6.2 hours before the alert went out and 180 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
- 728 m above ground
- 0-6 km bulk shear
- 92 kt
- 0-1 km storm-relative helicity
- -47 m²/s²
- 0-3 km storm-relative helicity
- 165 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
514 WWUS45 KBOU 051810 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1110 AM MST THU JAN 5 2017 SNOWFALL WILL CONTINUE TO SLOWLY SHIFT SOUTH THROUGH THE DAY...WITH ADDITIONAL ACCUMULATION LIKELY IN MOUNTAIN AREAS GENERALLY ALONG AND SOUTH OF I-70 AND THE FRONT RANGE URBAN CORRIDOR ROUGHLY SOUTH OF THE DENVER METRO AREA. MOUNTAIN AREAS SOUTH OF I-70 COULD PICK UP ANOTHER 3 TO 6 INCHES OF SNOW AS ANOTHER BAND OF MODERATE TO HEAVY SNOWFALL IS EXPECTED TO MOVE IN AROUND MIDDAY. HIGHER AREAS IN DOUGLAS AND WESTERN ELBERT COUNTIES COULD ALSO SEE ADDITIONAL SNOW ACCUMULATION THROUGH EARLY THIS AFTERNOON. SKIES ARE EXPECTED TO CLEAR FROM NORTH TO SOUTH ACROSS THE REGION STARTING UP ALONG THE WYOMING BORDER EARLY THIS AFTERNOON. SNOW ACCUMULATION SHOULD END IN ALL AREAS BY TONIGHT. COZ034-060000- /O.EXP.KBOU.WS.W.0001.000000T0000Z-170105T1800Z/ /O.NEW.KBOU.WS.W.0002.170105T1810Z-170106T0000Z/ 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, AND WINTER PARK 1110 AM MST THU JAN 5 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM MST THIS AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR ADDITIONAL SNOW ACCUMULATION, WHICH IS IN EFFECT UNTIL 1 PM MST THIS AFTERNOON. THE WINTER STORM WARNING HAS BEEN CANCELLED. * TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH EARLY THIS AFTERNOON. SNOW SHOULD THEN DIMINISH TO FLURRIES FOR THE REMAINDER OF THE AFTERNOON. * SNOW ACCUMULATIONS...ADDITIONAL AMOUNTS UP TO 3 INCHES. * WIND/VISIBILITY...NORTHWEST UP TO 15 MPH COULD CAUSE SOME BLOWING SNOW IN OPEN AREAS WHICH REDUCE VISIBILITIES TO AROUND A MILE. * IMPACTS...TRAVEL WILL BE DIFFICULT DUE TO THE SNOW AND SNOW COVER ON ROADS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS SNOW AND AREAS OF BLOWING SNOW MAY CAUSE DIFFICULT DRIVING CONDITIONS AND REDUCED VISIBILITIES. && $$ COZ036-041-052200- /O.EXP.KBOU.WS.W.0001.000000T0000Z-170105T1800Z/ /O.NEW.KBOU.WS.W.0002.170105T1810Z-170105T2200Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF BAILEY, CENTRAL CITY, EVERGREEN, GEORGETOWN, IDAHO SPRINGS, WESTCREEK, CASTLE ROCK, ELBERT, FONDIS, KIOWA, AND LARKSPUR 1110 AM MST THU JAN 5 2017 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... * TIMING...LIGHT TO MODERATE SNOWFALL WILL CONTINUE THROUGH EARLY THIS AFTERNOON. SNOW WILL DIMINISH THROUGH THE REMAINDER OF THE AFTERNOON. * SNOW ACCUMULATIONS...UP TO 3 INCHES OF ADDITIONAL ACCUMULATION BY EARLY THIS AFTERNOON. * WIND/VISIBILITY...NORTHEAST WINDS 5 TO 10 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE MILE DURING PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY...ESPECIALLY OVER THE PALMER DIVIDE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE OCCURRING. SIGNIFICANT AMOUNTS OF SNOW HAVE FALLEN WHICH COULD MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ032-052000- /O.EXP.KBOU.WS.W.0001.000000T0000Z-170105T1800Z/ /O.NEW.KBOU.WW.Y.0003.170105T1810Z-170105T2000Z/ GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF DILLON, FRASER, GRANBY, GRAND LAKE, HOT SULPHUR SPRINGS, AND KREMMLING 1110 AM MST THU JAN 5 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM MST THIS AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR ADDITIONAL SNOW ACCUMULATION, WHICH IS IN EFFECT UNTIL 1 PM MST THIS AFTERNOON. THE WINTER STORM WARNING HAS BEEN CANCELLED. * TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH EARLY THIS AFTERNOON. SNOW SHOULD THEN DIMINISH TO FLURRIES FOR THE REMAINDER OF THE AFTERNOON. * SNOW ACCUMULATIONS...ADDITIONAL AMOUNTS UP TO 3 INCHES. * WIND/VISIBILITY...NORTHWEST UP TO 15 MPH COULD CAUSE SOME BLOWING SNOW IN OPEN AREAS WHICH REDUCE VISIBILITIES TO AROUND A MILE. * IMPACTS...TRAVEL WILL BE DIFFICULT DUE TO THE SNOW AND SNOW COVER ON ROADS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS SNOW AND AREAS OF BLOWING SNOW MAY CAUSE DIFFICULT DRIVING CONDITIONS AND REDUCED VISIBILITIES. && $$ COZ030-031-033-035-039-040-051915- /O.EXP.KBOU.WS.W.0001.000000T0000Z-170105T1800Z/ JACKSON COUNTY BELOW 9000 FEET- WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- INCLUDING THE CITIES OF GOULD, NORTH PARK, RAND, SPICER, WALDEN, EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS, RABBIT EARS PASS, CAMERON PASS, LARAMIE AND MEDICINE BOW MOUNTAINS, RABBIT EARS RANGE, ROCKY MOUNTAIN NATIONAL PARK, WILLOW CREEK PASS, ESTES PARK, GLENDEVEY, NEDERLAND, RED FEATHER LAKES, ARVADA, BOULDER, GOLDEN, LAKEWOOD, LONGMONT, AURORA, BRIGHTON, CITY OF DENVER, DENVER INTERNATIONAL AIRPORT, HIGHLANDS RANCH, LITTLETON, AND PARKER 1110 AM MST THU JAN 5 2017 ...WINTER STORM WARNING HAS EXPIRED... THE NATIONAL WEATHER SERVICE IN DENVER HAS ALLOWED THE WINTER STORM WARNING TO EXPIRE AT 11 AM MST. LITTLE TO NO ADDITIONAL SNOW ACCUMULATION IS ANTICIPATED. HOWEVER ROADS AND HIGHWAYS IN THE AREAS WILL LIKELY REMAIN ICY AND SNOW COVERED. $$ COZ045-046-051915- /O.EXP.KBOU.WW.Y.0002.000000T0000Z-170105T1800Z/ CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF BENNETT, BYERS, DEER TRAIL, LEADER, AGATE, HUGO, LIMON, AND MATHESON 1110 AM MST THU JAN 5 2017 ...WINTER WEATHER ADVISORY HAS EXPIRED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. LITTLE TO NO ADDITIONAL SNOW ACCUMULATION IS ANTICIPATED ACROSS EASTERN ELBERT AND LINCOLN COUNTIES. HOWEVER ROADS MAY STILL BE ICY AND SNOW COVERED IN SPOTS. $$ BAKER
3 follow-up statements
492 WWUS45 KBOU 051822 AAA WSWBOU URGENT - WINTER WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1122 AM MST THU JAN 5 2017 SNOWFALL WILL SLOWLY SHIFT SOUTH THROUGH THE DAY... WITH ADDITIONAL ACCUMULATION LIKELY IN MOUNTAIN AREAS MAINLY ALONG AND SOUTH OF I-70 AND OVER THE FRONT RANGE URBAN CORRIDOR ROUGHLY SOUTH OF THE DENVER METRO AREA. MOUNTAIN AREAS SOUTH OF I- 70 COULD PICK UP ANOTHER 3 TO 6 INCHES OF SNOW AS ANOTHER BAND OF MODERATE TO HEAVY SNOWFALL IS EXPECTED TO MOVE IN AROUND MIDDAY. HIGHER AREAS IN DOUGLAS AND WESTERN ELBERT COUNTIES COULD ALSO SEE ADDITIONAL SNOW ACCUMULATION THROUGH EARLY THIS AFTERNOON. SKIES ARE EXPECTED TO SLOWLY CLEAR FROM NORTH TO SOUTH ACROSS THE REGION WITH DRIER AIR MOVING DOWN FROM WYOMING. SNOW ACCUMULATION SHOULD END IN ALL AREAS TONIGHT. COZ034-060000- /O.CON.KBOU.WS.W.0002.000000T0000Z-170106T0000Z/ 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, AND WINTER PARK 1122 AM MST THU JAN 5 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE FOR THE REMAINDER OF THE AFTERNOON. HIGHER TERRAIN IN SUMMIT AND PARK COUNTIES COULD SEE A PERIOD OF HEAVY SNOWFALL THIS AFTERNOON. SNOWFALL SHOULD DIMINISH IN MOST AREAS BY THIS EVENING. * SNOW ACCUMULATIONS...AN ADDITIONAL 3 TO 6 INCHES. * WIND/VISIBILITY...NORTHWEST UP TO 15 MPH COULD CAUSE SOME BLOWING SNOW IN OPEN AREAS WHICH REDUCE VISIBILITIES TO AROUND A MILE. * IMPACTS...TRAVEL WILL BE DIFFICULT DUE TO THE SNOW AND SNOW COVER ON ROADS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SNOW...HEAVY AT TIMES...BLOWING SNOW AND SNOW COVERED ROADS WILL PRODUCE DIFFICULT IF NOT HAZARDOUS DRIVING CONDITIONS AND REDUCED VISIBILITIES. && $$ COZ036-041-052200- /O.CON.KBOU.WS.W.0002.000000T0000Z-170105T2200Z/ 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, FONDIS, KIOWA, AND LARKSPUR 1122 AM MST THU JAN 5 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... * TIMING...LIGHT TO MODERATE SNOWFALL WILL CONTINUE THROUGH EARLY THIS AFTERNOON. SNOW WILL DIMINISH THROUGH THE REMAINDER OF THE AFTERNOON. * SNOW ACCUMULATIONS...UP TO 3 INCHES OF ADDITIONAL ACCUMULATION BY EARLY THIS AFTERNOON. * WIND/VISIBILITY...NORTHEAST WINDS 5 TO 10 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE MILE DURING PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY...ESPECIALLY OVER THE PALMER DIVIDE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE OCCURRING. SIGNIFICANT AMOUNTS OF SNOW HAVE FALLEN WHICH COULD 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. && $$ COZ032-052000- /O.CON.KBOU.WW.Y.0003.000000T0000Z-170105T2000Z/ GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF DILLON, FRASER, GRANBY, GRAND LAKE, HOT SULPHUR SPRINGS, AND KREMMLING 1122 AM MST THU JAN 5 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM MST THIS AFTERNOON... * TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH EARLY THIS AFTERNOON. SNOW SHOULD THEN DIMINISH TO FLURRIES FOR THE REMAINDER OF THE AFTERNOON. * SNOW ACCUMULATIONS...ADDITIONAL AMOUNTS UP TO 3 INCHES. * WIND/VISIBILITY...NORTHWEST UP TO 15 MPH COULD CAUSE SOME BLOWING SNOW IN OPEN AREAS WHICH REDUCE VISIBILITIES TO AROUND A MILE. * IMPACTS...TRAVEL WILL BE DIFFICULT DUE TO THE SNOW AND SNOW COVER ON ROADS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS SNOW AND AREAS OF BLOWING SNOW MAY CAUSE DIFFICULT DRIVING CONDITIONS AND REDUCED VISIBILITIES. && $$ BAKER
665 WWUS45 KBOU 052014 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 114 PM MST THU JAN 5 2017 SNOWFALL WILL GRADUALLY SHIFT SOUTH THROUGH THE AFTERNOON WITH SNOW WINDING DOWN FROM NORTH TO SOUTH ACROSS THE MOUNTAINS BY EARLY EVENING. THE MAJORITY OF THE SNOWFALL HAS ENDED ACROSS THE SOUTHERN FOOTHILLS AND PALMER DIVIDE REGION WITH ONLY LIGHT ADDITIONAL AMOUNTS EXPECTED THROUGH THE AFTERNOON. COZ036-041-052115- /O.CAN.KBOU.WS.W.0002.000000T0000Z-170105T2200Z/ 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- 114 PM MST THU JAN 5 2017 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER STORM WARNING. SNOW HAS DIMINISHED ACROSS THE PALMER DIVIDE AND FOOTHILLS REGION, AND ONLY LIGHT ADDITIONAL SNOWFALL AMOUNTS WILL OCCUR THROUGH THE AFTERNOON. THEREFORE THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. $$ COZ032-052115- /O.EXP.KBOU.WW.Y.0003.000000T0000Z-170105T2000Z/ GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- 114 PM MST THU JAN 5 2017 ...WINTER WEATHER ADVISORY HAS EXPIRED... SNOW HAS DECREASED ACROSS GRAND AND SUMMIT COUNTIES THEREFORE THE WINTER WEATHER ADVISORY HAS EXPIRED. $$ COZ034-060000- /O.CON.KBOU.WS.W.0002.000000T0000Z-170106T0000Z/ SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- 114 PM MST THU JAN 5 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE FOR THE REMAINDER OF THE AFTERNOON. * SNOW ACCUMULATIONS...AN ADDITIONAL 2 TO 4 INCHES. * WIND/VISIBILITY...NORTHWEST 15-30 MPH COULD CAUSE SOME BLOWING SNOW IN OPEN AREAS WHICH WILL REDUCE VISIBILITIES TO AROUND A MILE. * IMPACTS...TRAVEL WILL BE DIFFICULT DUE TO THE SNOW AND SNOW COVER ON ROADS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SNOW...HEAVY AT TIMES...BLOWING SNOW AND SNOW COVERED ROADS WILL PRODUCE DIFFICULT IF NOT HAZARDOUS DRIVING CONDITIONS AND REDUCED VISIBILITIES. && $$
204 WWUS45 KBOU 052219 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 319 PM MST THU JAN 5 2017 ...SNOW WILL CONTINUE THROUGH THE EVENING ACROSS THE HIGHER ELEVATIONS OF SUMMIT AND PARK COUNTIES... .LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH THE EVENING ACROSS THE HIGHER ELEVATIONS OF SUMMIT AND PARK COUNTIES BEFORE DIMINISHING LATER THIS EVENING. AREAS OF BLOWING SNOW OVER THE PEAKS WILL RESULT IN POOR VISIBILITIES AT TIMES ACROSS THE HIGHER TERRAIN AND IN WIND EXPOSED AREAS. COZ034-060400- /O.CAN.KBOU.WS.W.0002.000000T0000Z-170106T0000Z/ /O.NEW.KBOU.WW.Y.0004.170105T2219Z-170106T0400Z/ SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- 319 PM MST THU JAN 5 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 PM MST THIS EVENING... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 9 PM MST THIS EVENING. THE WINTER STORM WARNING HAS BEEN CANCELLED. * TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH THE EVENING. * SNOW ACCUMULATIONS...AN ADDITIONAL 3 TO 6 INCHES ACROSS THE HIGHER ELEVATIONS ACROSS THE HIGHER ELEVATIONS OF PARK AND SUMMIT COUNTIES. * WIND/VISIBILITY...NORTHWEST 15 TO 30 MPH WILL CAUSE SOME BLOWING SNOW ACROSS THE HIGHER ELEVATIONS AND IN OPEN AREAS WHICH WILL REDUCE VISIBILITIES TO AROUND A MILE AT TIMES. * IMPACTS...TRAVEL WILL BE DIFFICULT DUE TO THE SNOW AND SNOW COVER ON ROADS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ042-044-048>051-060630- /O.NEW.KBOU.WC.Y.0001.170106T0200Z-170106T1600Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY- WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 319 PM MST THU JAN 5 2017 ...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 9 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 9 AM MST FRIDAY. * TIMING...BREEZY NORTH WINDS 10 TO 20 MPH THIS EVENING WILL SLOWLY DECREASE TO AROUND 5 TO 10 MPH OVERNIGHT. THIS WILL CAUSE DANGEROUS WIND CHILLS TO DEVELOP THIS EVENING...AND CONTINUING THROUGH FRIDAY MORNING. * WIND CHILL VALUES...DROPPING TO BETWEEN 18 BELOW AND 24 BELOW ZERO. * IMPACTS...EXPOSED SKIN WILL SUFFER FROM FROSTBITE IN 20 MINUTES. 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. && $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 5, 11:10 AM MST | Winter Weather Advisory | BOU | Grand, Summit | 110 min |
| Jan 5, 3:19 PM MST | Wind Chill Advisory | BOU | Logan, Morgan, Phillips, Sedgwick, Washington, Weld | 18 hr |
| Jan 5, 3:19 PM MST | Winter Weather Advisory | BOU | Boulder, Clear Creek, Gilpin, Grand, Jefferson, Park and 1 more | 6 hr |
Nearby
Winter Storm Warnings in Colorado, 2017Every winter storm warning in 2017
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.