Alert archive / Colorado / Blizzard Warnings in 2012
Blizzard Warning 1, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this blizzard warning at Jan 18, 2012, 2:49 PM MST for 9 counties in Colorado. It took effect at Jan 18, 2012, 8:00 PM MST. It was in force for 13 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 18, 2012, 2:49 PM MST (21:49 UTC)
- In effect from
- Jan 18, 2012, 8:00 PM MST
- Expired
- Jan 19, 2012, 9:05 AM MST
- In force
- 13 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 21:48 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 (KDNR), launched 12:00Z, 9.8 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
- 2330 m above ground
- 0-6 km bulk shear
- 117 kt
- 0-1 km storm-relative helicity
- 259 m²/s²
- 0-3 km storm-relative helicity
- 663 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
345 WWUS45 KBOU 182149 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 249 PM MST WED JAN 18 2012 ...BLIZZARD CONDITIONS EXPECTED IN THE MOUNTAINS TONIGHT AND EARLY THURSDAY... .A VERY STRONG NORTHWEST FLOW PATTERN WILL CONTINUE OVER THE ROCKY MOUNTAIN REGION THROUGH FRIDAY. MOISTURE WILL BE INCREASING IN THE MOUNTAINS BY LATER THIS EVENING AND COUPLED WITH THE HIGH WINDS WILL RESULT IN BLIZZARD CONDITIONS AT TIMES...MAINLY OVER THE HIGH MOUNTAIN PASSES. ACROSS LOWER ELEVATIONS IN THE MOUNTAIN VALLEYS...CONDITIONS WILL BE MUCH BETTER WITH LESS WIND AND SNOW. MOUNTAIN TRAVEL IS DISCOURAGED TONIGHT AND THURSDAY MORNING AS HIGH MOUNTAIN ROADS AND PASSES MAY BECOME IMPASSABLE OR CLOSED DURING THIS EVENT. COZ033-034-190600- /O.NEW.KBOU.BZ.W.0001.120119T0300Z-120119T1900Z/ 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 249 PM MST WED JAN 18 2012 ...BLIZZARD WARNING IN EFFECT FROM 8 PM THIS EVENING TO NOON MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A BLIZZARD WARNING...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO NOON MST THURSDAY. * TIMING...LIGHT SNOW WILL DEVELOP BY LATER THIS EVENING...WHILE STRONG WINDS WILL PRODUCE BLIZZARD CONDITIONS AND NEAR ZERO VISIBILITIES. * SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BY THURSDAY AFTERNOON ARE EXPECTED TO BE IN THE 2 TO 7 INCH RANGE...WITH THE HIGHER AMOUNTS ON HIGHER WEST FACING SLOPES. * WINDS/VISIBILITY...WEST WINDS OF 30 TO 50 MPH AND GUSTS UP TO 90 MPH WILL PRODUCE NEAR ZERO VISIBILITIES AT TIMES. * IMPACTS...IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE IN CASE OF AN EMERGENCY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE OCCURRING OR IMMINENT. SUSTAINED WIND AND/OR FREQUENT WIND GUSTS OF 35 MPH OR HIGHER WILL COMBINE WITH CONSIDERABLE FALLING AND BLOWING SNOW TO PRODUCE WIDESPREAD VISIBILITIES BELOW ONE QUARTER OF A MILE. TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED IN THESE WHITEOUT CONDITIONS. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ031-190600- /O.NEW.KBOU.WS.W.0001.120119T0300Z-120121T0000Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 249 PM MST WED JAN 18 2012 ...WINTER STORM WARNING IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 5 PM MST FRIDAY. * TIMING...HEAVIER SNOW WILL BEGIN LATER THIS EVENING CONTINUING THROUGH FRIDAY AFTERNOON. THE HEAVIEST SNOW IS EXPECTED THURSDAY NIGHT INTO FRIDAY MORNING. * SNOW ACCUMULATIONS...1 TO 2 FEET. * WINDS/VISIBILITY...GUSTY WINDS TO 70 MPH TONIGHT WILL DECREASE TO GUSTS TO 45 MPH THURSDAY AND FRIDAY CAUSING VISIBILITIES TO DROP TO A MILE OR LESS AT TIMES. * IMPACTS...BLOWING AND DRIFTING SNOW WILL MAKE TRAVEL HAZARDOUS. WINDS WILL ALSO PRODUCE WIND CHILL TEMPERATURES AROUND 10 DEGREES BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$
3 follow-up statements
265 WWUS45 KBOU 190330 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 830 PM MST WED JAN 18 2012 ...BLIZZARD CONDITIONS EXPECTED IN THE MOUNTAINS LATER TONIGHT AND EARLY THURSDAY... .A VERY STRONG NORTHWEST FLOW PATTERN WILL CONTINUE OVER THE ROCKY MOUNTAIN REGION THROUGH FRIDAY. MOISTURE WILL BE INCREASING IN THE MOUNTAINS AFTER MIDNIGHT AND COUPLED WITH THE HIGH WINDS WILL RESULT IN BLIZZARD CONDITIONS AT TIMES...MAINLY OVER THE HIGH MOUNTAIN PASSES. ACROSS LOWER ELEVATIONS IN THE MOUNTAIN VALLEYS...CONDITIONS WILL BE MUCH BETTER WITH LESS WIND AND SNOW. MOUNTAIN TRAVEL IS DISCOURAGED LATE TONIGHT AND THURSDAY MORNING AS HIGH MOUNTAIN ROADS AND PASSES MAY BECOME IMPASSABLE OR CLOSED DURING THIS EVENT. COZ033-034-191130- /O.CON.KBOU.BZ.W.0001.000000T0000Z-120119T1900Z/ 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 830 PM MST WED JAN 18 2012 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MST THURSDAY... * TIMING...LIGHT SNOW WILL DEVELOP BY MIDNIGHT...WHILE STRONG WINDS WILL PRODUCE BLIZZARD CONDITIONS AND NEAR ZERO VISIBILITIES. * SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BY THURSDAY AFTERNOON ARE EXPECTED TO BE IN THE 2 TO 7 INCH RANGE...WITH THE HIGHER AMOUNTS ON HIGHER WEST FACING SLOPES. * WINDS/VISIBILITY...WEST WINDS OF 30 TO 50 MPH AND GUSTS UP TO 90 MPH WILL PRODUCE NEAR ZERO VISIBILITIES AT TIMES. * IMPACTS...IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE IN CASE OF AN EMERGENCY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE OCCURRING OR IMMINENT. SUSTAINED WIND AND/OR FREQUENT WIND GUSTS OF 35 MPH OR HIGHER WILL COMBINE WITH CONSIDERABLE FALLING AND BLOWING SNOW TO PRODUCE WIDESPREAD VISIBILITIES BELOW ONE QUARTER OF A MILE. TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED IN THESE WHITEOUT CONDITIONS. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ031-191130- /O.CON.KBOU.WS.W.0001.000000T0000Z-120121T0000Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 830 PM MST WED JAN 18 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * TIMING...SNOW WILL DEVELOP AROUND MIDNIGHT AND CONTINUE THROUGH FRIDAY AFTERNOON. THE HEAVIEST SNOW IS EXPECTED THURSDAY NIGHT INTO FRIDAY MORNING. * SNOW ACCUMULATIONS...1 TO 2 FEET. * WINDS/VISIBILITY...GUSTY WINDS TO 70 MPH TONIGHT WILL DECREASE TO GUSTS TO 45 MPH THURSDAY AND FRIDAY CAUSING VISIBILITIES TO DROP TO A MILE OR LESS AT TIMES. * IMPACTS...BLOWING AND DRIFTING SNOW WILL MAKE TRAVEL HAZARDOUS. WINDS WILL ALSO PRODUCE WIND CHILL TEMPERATURES AROUND 10 DEGREES BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$
736 WWUS45 KBOU 190944 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 244 AM MST THU JAN 19 2012 ...SNOW AND BLOWING SNOW TO CONTINUE IN THE MOUNTAINS THIS MORNING... .A VERY STRONG NORTHWEST FLOW PATTERN WILL CONTINUE OVER THE ROCKY MOUNTAIN REGION THROUGH FRIDAY. THE COMBINATION OF SNOW AND WIND WILL RESULT IN BLIZZARD CONDITIONS AT TIMES OVER THE HIGH MOUNTAIN PASSES. ACROSS LOWER ELEVATIONS IN THE MOUNTAIN VALLEYS...CONDITIONS WILL BE MUCH BETTER WITH LESS WIND AND SNOW. MOUNTAIN TRAVEL IS DISCOURAGED THROUGH THIS MORNING AS HIGH MOUNTAIN ROADS AND PASSES MAY BECOME IMPASSABLE OR CLOSED DURING THIS EVENT. COZ033-034-191900- /O.CON.KBOU.BZ.W.0001.000000T0000Z-120119T1900Z/ 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 244 AM MST THU JAN 19 2012 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... * TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE THIS MORNING...WHILE STRONG WINDS WILL PRODUCE BLIZZARD CONDITIONS AND NEAR ZERO VISIBILITIES...MAINLY ABOVE TIMBERLINE. * SNOW ACCUMULATIONS...SNOW AMOUNTS THROUGH THIS AFTERNOON ARE EXPECTED TO RANGE FROM 3 TO 6 INCHES...WITH THE HEAVIEST AMOUNTS ALONG THE HIGHER WEST FACING SLOPES. * WINDS/VISIBILITY...WEST WINDS OF 25 TO 40 MPH WITH GUSTS UP TO 75 MPH THIS MORNING WILL PRODUCE NEAR ZERO VISIBILITIES AT TIMES. THE STRONGER GUSTS ARE EXPECTED TO DECREASE IN MAGNITUDE BY THIS AFTERNOON. * IMPACTS...IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE IN CASE OF AN EMERGENCY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE OCCURRING OR IMMINENT. SUSTAINED WIND AND/OR FREQUENT WIND GUSTS OF 35 MPH OR HIGHER WILL COMBINE WITH CONSIDERABLE FALLING AND BLOWING SNOW TO PRODUCE WIDESPREAD VISIBILITIES BELOW ONE QUARTER OF A MILE. TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED IN THESE WHITEOUT CONDITIONS. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ031-191900- /O.CON.KBOU.WS.W.0001.000000T0000Z-120121T0000Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 244 AM MST THU JAN 19 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * TIMING...SNOW WILL WILL CONTINUE THROUGH FRIDAY AFTERNOON. THE HEAVIEST SNOW IS EXPECTED TO OCCUR TONIGHT INTO FRIDAY MORNING. * SNOW ACCUMULATIONS...1 TO 2 FEET. * WINDS/VISIBILITY...GUSTY WINDS TO 45 MPH WILL CAUSE VISIBILITIES TO DROP TO A MILE OR LESS AT TIMES. * IMPACTS...BLOWING AND DRIFTING SNOW WILL MAKE TRAVEL HAZARDOUS. WINDS WILL ALSO PRODUCE WIND CHILL TEMPERATURES AROUND 10 DEGREES BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$
023 WWUS45 KBOU 191605 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 905 AM MST THU JAN 19 2012 ...WINDS AND SNOW DECREASING IN THE MOUNTAINS THIS MORNING... .A VERY STRONG NORTHWEST FLOW PATTERN WILL CONTINUE OVER THE ROCKY MOUNTAIN REGION THROUGH FRIDAY. THERE HAS BEEN SOME DECREASE IN THE SNOW AND WINDS THIS MORNING...BUT SNOW WILL INCREASE AGAIN OVER THE MOUNTAINS LATER TODAY AND TONIGHT. COZ033-034-191715- /O.CAN.KBOU.BZ.W.0001.000000T0000Z-120119T1900Z/ 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 905 AM MST THU JAN 19 2012 ...BLIZZARD WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE BLIZZARD WARNING. THERE IS STILL SOME SNOW AND BLOWING SNOW OVER THE HIGH MOUNTAIN PASSES BUT THE NEAR ZERO VISIBILITIES ARE VERY LOCALIZED AND MAINLY OVER MOUNTAIN PEAKS AND HIGHER EAST SLOPES. SNOW ACCUMULATIONS FOR THE REST OF THE DAY WILL BE UNDER 2 INCHES. THE SNOW WILL INCREASE AGAIN LATER TODAY. $$ COZ031-200015- /O.CON.KBOU.WS.W.0001.000000T0000Z-120121T0000Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 905 AM MST THU JAN 19 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * TIMING...A BREAK IN THE SNOW THIS MORNING BUT WILL INCREASE AGAIN LATER TODAY AND TONIGHT AND CONTINUE THROUGH FRIDAY AFTERNOON. THE HEAVIEST SNOW IS EXPECTED TO OCCUR TONIGHT INTO FRIDAY MORNING. * SNOW ACCUMULATIONS...1 TO 2 FEET BY FRIDAY AFTERNOON. * WINDS/VISIBILITY...GUSTY WINDS TO 45 MPH WILL CAUSE VISIBILITIES TO DROP TO A MILE OR LESS AT TIMES. * IMPACTS...BLOWING AND DRIFTING SNOW WILL MAKE TRAVEL HAZARDOUS. WINDS WILL ALSO PRODUCE WIND CHILL TEMPERATURES AROUND 10 DEGREES BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE EXTREMELY DANGEROUS AND IS DISCOURAGED DUE TO SNOW AND BLOWING SNOW CAUSING WHITEOUT CONDITIONS. CONSIDER DELAYING TRAVEL UNTIL CONDITIONS IMPROVE. IF YOU MUST TRAVEL...KEEP EXTRA FOOD...WATER...A FLASHLIGHT...AND DRY CLOTHING IN YOUR VEHICLE. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 18, 2:49 PM MST | Winter Storm Warning | BOU | Grand, Jackson | 20 hr |
Nearby
Blizzard Warnings in Colorado, 2012Every blizzard 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.