Alert archive / Colorado / Blizzard Warnings in 2010
Blizzard Warning 2, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this blizzard warning at Nov 22, 2010, 9:48 PM MST for Grand County, Jackson County, Colorado. It took effect at Nov 24, 2010, 12:00 AM MST. It was in force for 5 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
- Nov 22, 2010, 9:48 PM MST (04:48 UTC)
- In effect from
- Nov 24, 2010, 12:00 AM MST
- Expired
- Nov 24, 2010, 5:22 AM MST
- In force
- 5 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Grand County, CO, Jackson County, CO
The radar
The Cheyenne radar (KCYS), 147 km from the middle of the area, began a volume at 04:51 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
Grand Junction, CO (KGJT), launched 00:00Z, 4.8 hours before the alert went out and 239 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
- 3 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 1858 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 151 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
418 WWUS45 KBOU 230448 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 948 PM MST MON NOV 22 2010 ...SIGNIFICANT WINTER STORM MOVING TOWARD COLORADO... .A STRONG STORM SYSTEM WILL SWEEP ACROSS THE NORTHERN ROCKIES AND GREAT BASIN TUESDAY AND THEN ACROSS THE CENTRAL ROCKIES TUESDAY NIGHT AND WEDNESDAY. THIS WILL BRING MORE SNOW AND A PERIOD OF VERY STRONG WINDS TO THE MOUNTAINS OF COLORADO. TRAVEL WILL BE HAZARDOUS IF NOT IMPOSSIBLE TUESDAY NIGHT INTO WEDNESDAY ACROSS COLORADO AND ROAD CLOSURES ARE POSSIBLE. THE STRONG WINDS ASSOCIATED WITH THIS STORM SYSTEM ARE EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW...WITH BLIZZARD CONDITIONS IN THE MOUNTAINS OF WESTERN COLORADO. THE NORTHERN MOUNTAINS INCLUDING INTERSTATE 70 THROUGH SUMMIT COUNTY AND THE APPROACHES TO THE EISENHOWER TUNNEL MAY ALSO SEE A PERIOD OF BLIZZARD CONDITIONS DURING THE PERIOD OF MOST INTENSE SNOW AND WIND LATE TUESDAY NIGHT INTO WEDNESDAY MORNING. TEMPERATURES WILL TURN VERY COLD...AND COMBINED WITH THE STRONG WINDS POTENTIALLY LIFE THREATENING WEATHER CONDITIONS WILL OCCUR IF SNOWBOUND AND CAUGHT OUTSIDE. COZ031-231300- /O.UPG.KBOU.WS.A.0006.101124T0700Z-101124T1900Z/ /O.NEW.KBOU.BZ.W.0002.101124T0700Z-101125T0000Z/ 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 948 PM MST MON NOV 22 2010 ...BLIZZARD WARNING IN EFFECT FROM MIDNIGHT TUESDAY NIGHT TO 5 PM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A BLIZZARD WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TUESDAY NIGHT TO 5 PM MST WEDNESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW AND WIND SPEEDS WILL BE ON THE INCREASE TUESDAY NIGHT. AT THIS TIME...THE HEAVIEST SNOW AND STRONGEST WINDS ARE EXPECTED TO OCCUR BETWEEN MIDNIGHT TUESDAY NIGHT AND NOON WEDNESDAY...BEFORE SLIGHT IMPROVEMENT LATE WEDNESDAY. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS OF 6 TO 12 INCHES CAN BE EXPECTED. SOUTHWEST WINDS OF 25 TO 40 MPH WITH GUSTS AROUND 60 ON THE HIGHER MOUNTAINS AND PASSES WILL PRODUCE BLIZZARD CONDITIONS AND NEAR ZERO VISIBILITIES AT TIMES. * IMPACTS...TRAVEL WILL BECOME EXTREMELY DANGEROUS OR IMPOSSIBLE TUESDAY NIGHT INTO WEDNESDAY. TRAVEL IS NOT RECOMMENDED AT THAT TIME. WIND CHILLS WILL BE EXTREMELY COLD...WITH LIFE THREATENING CONDITIONS IF CAUGHT OUTSIDE. 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. && $$ COZ033-231300- /O.UPG.KBOU.WS.A.0006.101124T0700Z-101124T1900Z/ /O.NEW.KBOU.WS.W.0012.101124T0700Z-101125T0000Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS 948 PM MST MON NOV 22 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TUESDAY NIGHT TO 5 PM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TUESDAY NIGHT TO 5 PM MST WEDNESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW AND WIND SPEEDS WILL BE ON THE INCREASE TUESDAY NIGHT. AT THIS TIME...THE HEAVIEST SNOW AND STRONGEST WINDS ARE EXPECTED TO OCCUR FROM LATE TUESDAY NIGHT THROUGH NOON WEDNESDAY...BEFORE SLIGHT IMPROVEMENT OCCURS LATE WEDNESDAY. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS OF 4 TO 8 INCHES CAN BE EXPECTED. SOUTHWEST WINDS OF 25 TO 40 MPH WITH GUSTS AROUND 60 ON THE HIGHER MOUNTAINS AND PASSES WILL PRODUCE NEAR BLIZZARD CONDITIONS AT TIMES. * IMPACTS...TRAVEL WILL BECOME EXTREMELY DANGEROUS OR IMPOSSIBLE LATE TUESDAY NIGHT INTO WEDNESDAY. TRAVEL IS NOT RECOMMENDED AT THAT TIME. WIND CHILLS WILL BE EXTREMELY COLD...WITH POTENTIALLY LIFE THREATENING CONDITIONS IF CAUGHT OUTSIDE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. IF YOU MUST TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE AND WAIT FOR HELP TO ARRIVE. && $$ COZ034-231300- /O.NEW.KBOU.WS.W.0012.101124T0700Z-101125T0000Z/ 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 948 PM MST MON NOV 22 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TUESDAY NIGHT TO 5 PM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TUESDAY NIGHT TO 5 PM MST WEDNESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW AND WIND SPEEDS WILL BE ON THE INCREASE TUESDAY NIGHT. AT THIS TIME...THE HEAVIEST SNOW AND STRONGEST WINDS ARE EXPECTED TO OCCUR FROM LATE TUESDAY NIGHT THROUGH NOON WEDNESDAY...BEFORE SLIGHT IMPROVEMENT OCCURS LATE WEDNESDAY. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS OF 4 TO 8 INCHES CAN BE EXPECTED. SOUTHWEST WINDS OF 25 TO 40 MPH WITH GUSTS AROUND 60 ON THE HIGHER MOUNTAINS AND PASSES WILL PRODUCE NEAR BLIZZARD CONDITIONS AT TIMES. * IMPACTS...TRAVEL WILL BECOME EXTREMELY DANGEROUS OR IMPOSSIBLE LATE TUESDAY NIGHT INTO WEDNESDAY. TRAVEL IS NOT RECOMMENDED AT THAT TIME. WIND CHILLS WILL BE EXTREMELY COLD...WITH POTENTIALLY LIFE THREATENING CONDITIONS IF CAUGHT OUTSIDE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ BARJENBRUCH
5 follow-up statements
538 WWUS45 KBOU 231044 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 344 AM MST TUE NOV 23 2010 ...SIGNIFICANT WINTER STORM MOVING TOWARD COLORADO... .A STORM SYSTEM PACKING VERY STRONG WINDS WILL SWEEP ACROSS THE NORTHERN ROCKIES AND GREAT BASIN TODAY AND THEN ACROSS THE CENTRAL ROCKIES TONIGHT AND WEDNESDAY. THIS WILL BRING MORE SNOW TO THE MOUNTAINS OF COLORADO. TRAVEL WILL BE VERY HAZARDOUS LATE TONIGHT INTO WEDNESDAY ACROSS COLORADO AND ROAD CLOSURES ARE POSSIBLE. THE STRONG WINDS ASSOCIATED WITH THIS STORM SYSTEM ARE EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW...WITH BLIZZARD CONDITIONS IN THE MOUNTAINS OF WESTERN COLORADO. THE NORTHERN MOUNTAINS INCLUDING INTERSTATE 70 THROUGH SUMMIT COUNTY AND THE APPROACHES TO THE EISENHOWER TUNNEL MAY ALSO SEE A BRIEF PERIOD OF BLIZZARD CONDITIONS DURING THE PERIOD OF MOST INTENSE SNOW AND WIND LATE TONIGHT INTO WEDNESDAY MORNING. TEMPERATURES WILL TURN VERY COLD...AND COMBINED WITH THE STRONG WINDS POTENTIALLY LIFE THREATENING WEATHER CONDITIONS WILL OCCUR IF SNOWBOUND AND CAUGHT OUTSIDE. COZ031-231900- /O.CON.KBOU.BZ.W.0002.101124T0700Z-101125T0000Z/ 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 344 AM MST TUE NOV 23 2010 ...BLIZZARD WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY... A BLIZZARD WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY. * TIMING...SNOW AND WIND SPEEDS WILL INCREASE TONIGHT. THE HEAVIEST SNOW AND STRONGEST WINDS ARE EXPECTED TO OCCUR BETWEEN MIDNIGHT TONIGHT AND NOON WEDNESDAY...WITH A SLIGHT IMPROVEMENT IN THE AFTERNOON. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS OF 6 TO 12 INCHES CAN BE EXPECTED. SOUTHWEST WINDS OF 25 TO 40 MPH WITH GUSTS AROUND 70 MPH ON THE HIGHER MOUNTAINS AND PASSES WILL PRODUCE BLIZZARD CONDITIONS AND NEAR ZERO VISIBILITIES AT TIMES. * IMPACTS...TRAVEL WILL BECOME EXTREMELY DANGEROUS OR IMPOSSIBLE TONIGHT INTO WEDNESDAY. TRAVEL IS NOT RECOMMENDED AT THAT TIME. WIND CHILLS WILL BE EXTREMELY COLD...WITH LIFE THREATENING CONDITIONS IF CAUGHT OUTSIDE. 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. && $$ COZ033-034-231900- /O.CON.KBOU.WS.W.0012.101124T0700Z-101125T0000Z/ 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 344 AM MST TUE NOV 23 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY. * TIMING...SNOW AND WIND SPEEDS WILL BE ON THE INCREASE LATE TONIGHT. AT THIS TIME...THE HEAVIEST SNOW AND STRONGEST WINDS ARE EXPECTED TO OCCUR FROM LATE TONIGHT AND NOON WEDNESDAY...BEFORE A SLIGHT IMPROVEMENT OCCURS IN THE AFTERNOON. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS OF 4 TO 8 INCHES CAN BE EXPECTED. SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS AROUND 60 ON THE HIGHER MOUNTAINS AND PASSES WILL PRODUCE NEAR BLIZZARD CONDITIONS AT TIMES. * IMPACTS...TRAVEL WILL BECOME EXTREMELY DANGEROUS OR IMPOSSIBLE LATE TONIGHT INTO WEDNESDAY. TRAVEL IS NOT RECOMMENDED AT THAT TIME. WIND CHILLS WILL BE EXTREMELY COLD...WITH POTENTIALLY LIFE THREATENING CONDITIONS IF CAUGHT OUTSIDE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS AND STRONG WINDS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$
432 WWUS45 KBOU 231845 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1145 AM MST TUE NOV 23 2010 ...SIGNIFICANT WINTER STORM CONTINUES MOVING TOWARD COLORADO... .A STORM SYSTEM PACKING VERY STRONG WINDS SWEEPING ACROSS THE NORTHERN ROCKIES AND GREAT BASIN TODAY WILL MOVE ACROSS THE CENTRAL ROCKIES TONIGHT AND WEDNESDAY. THIS WILL BRING MORE SNOW TO THE MOUNTAINS OF COLORADO. TRAVEL WILL BE VERY HAZARDOUS LATE TONIGHT INTO WEDNESDAY ACROSS COLORADO AND ROAD CLOSURES ARE POSSIBLE. THE STRONG WINDS ASSOCIATED WITH THIS STORM SYSTEM ARE EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW...WITH BLIZZARD CONDITIONS IN THE MOUNTAINS OF WESTERN COLORADO. THE NORTHERN MOUNTAINS INCLUDING INTERSTATE 70 THROUGH SUMMIT COUNTY AND THE APPROACHES TO THE EISENHOWER TUNNEL MAY ALSO SEE A BRIEF PERIOD OF BLIZZARD CONDITIONS DURING THE PERIOD OF MOST INTENSE SNOW AND WIND LATE TONIGHT INTO WEDNESDAY MORNING. TEMPERATURES WILL TURN VERY COLD...AND COMBINED WITH THE STRONG WINDS POTENTIALLY LIFE THREATENING WEATHER CONDITIONS WILL OCCUR IF SNOWBOUND AND CAUGHT OUTSIDE. COZ031-240300- /O.CON.KBOU.BZ.W.0002.101124T0700Z-101125T0000Z/ 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 1145 AM MST TUE NOV 23 2010 ...BLIZZARD WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY... A BLIZZARD WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY. * TIMING...SNOW AND WIND SPEEDS WILL INCREASE TONIGHT. THE HEAVIEST SNOW AND STRONGEST WINDS ARE EXPECTED TO OCCUR BETWEEN MIDNIGHT TONIGHT AND NOON WEDNESDAY...WITH A SLIGHT IMPROVEMENT IN THE AFTERNOON. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS OF 6 TO 12 INCHES CAN BE EXPECTED. SOUTHWEST WINDS OF 25 TO 40 MPH WITH GUSTS AROUND 70 MPH ON THE HIGHER MOUNTAINS AND PASSES WILL PRODUCE BLIZZARD CONDITIONS AND NEAR ZERO VISIBILITIES AT TIMES. * IMPACTS...TRAVEL WILL BECOME EXTREMELY DANGEROUS OR IMPOSSIBLE TONIGHT INTO WEDNESDAY. TRAVEL IS NOT RECOMMENDED AT THAT TIME. WIND CHILLS WILL BE EXTREMELY COLD...WITH LIFE THREATENING CONDITIONS IF CAUGHT OUTSIDE. 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. && $$ COZ033-034-240300- /O.CON.KBOU.WS.W.0012.101124T0700Z-101125T0000Z/ 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 1145 AM MST TUE NOV 23 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY. * TIMING...SNOW AND WIND SPEEDS WILL BE ON THE INCREASE LATE TONIGHT. AT THIS TIME...THE HEAVIEST SNOW AND STRONGEST WINDS ARE EXPECTED TO OCCUR FROM LATE TONIGHT AND NOON WEDNESDAY... BEFORE A SLIGHT IMPROVEMENT OCCURS IN THE AFTERNOON. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS OF 4 TO 8 INCHES CAN BE EXPECTED. SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS AROUND 60 ON THE HIGHER MOUNTAINS AND PASSES WILL PRODUCE NEAR BLIZZARD CONDITIONS AT TIMES. * IMPACTS...TRAVEL WILL BECOME EXTREMELY DANGEROUS OR IMPOSSIBLE LATE TONIGHT INTO WEDNESDAY. TRAVEL IS NOT RECOMMENDED AT THAT TIME. WIND CHILLS WILL BE EXTREMELY COLD...WITH POTENTIALLY LIFE THREATENING CONDITIONS IF CAUGHT OUTSIDE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS AND STRONG WINDS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. 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. && $$
265 WWUS45 KBOU 240250 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 750 PM MST TUE NOV 23 2010 ...SIGNIFICANT WINTER STORM CONTINUES MOVING TOWARD COLORADO... .A STORM SYSTEM PACKING VERY STRONG WINDS AND ARCTIC COLD SWEEPING ACROSS UTAH AND WYOMING THIS EVENING WILL MOVE ACROSS COLORADO LATER TONIGHT INTO WEDNESDAY MORNING. THIS WILL BRING MORE SNOW AND BLOWING SNOW TO THE MOUNTAINS OF COLORADO. TRAVEL WILL BE VERY HAZARDOUS LATE TONIGHT INTO WEDNESDAY ACROSS COLORADO AND ROAD CLOSURES ARE POSSIBLE. THE STRONG WINDS ASSOCIATED WITH THIS STORM SYSTEM ARE EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW...WITH BLIZZARD CONDITIONS IN THE MOUNTAINS OF WESTERN COLORADO. THE NORTHERN MOUNTAINS INCLUDING INTERSTATE 70 THROUGH SUMMIT COUNTY AND THE APPROACHES TO THE EISENHOWER TUNNEL MAY ALSO SEE A BRIEF PERIOD OF BLIZZARD CONDITIONS DURING THE PERIOD OF MOST INTENSE SNOW AND WIND LATE TONIGHT INTO WEDNESDAY MORNING. TEMPERATURES WILL TURN VERY COLD...AND COMBINED WITH THE STRONG WINDS POTENTIALLY LIFE THREATENING WEATHER CONDITIONS WILL OCCUR IF SNOWBOUND AND CAUGHT OUTSIDE. COZ031-241200- /O.CON.KBOU.BZ.W.0002.101124T0700Z-101125T0000Z/ 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 750 PM MST TUE NOV 23 2010 ...BLIZZARD WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY... A BLIZZARD WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY. * TIMING...SNOW AND WIND SPEEDS WILL INCREASE TONIGHT. THE HEAVIEST SNOW AND STRONGEST WINDS ARE EXPECTED TO OCCUR BETWEEN MIDNIGHT TONIGHT AND NOON WEDNESDAY...WITH A SLIGHT IMPROVEMENT BY WEDNESDAY AFTERNOON. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS OF 6 TO 12 INCHES CAN BE EXPECTED. SOUTHWEST WINDS OF 25 TO 40 MPH WITH GUSTS AROUND 60 MPH ON THE HIGHER MOUNTAINS AND PASSES WILL PRODUCE BLIZZARD CONDITIONS AND NEAR ZERO VISIBILITIES AT TIMES. * IMPACTS...TRAVEL WILL BECOME EXTREMELY DANGEROUS OR IMPOSSIBLE TONIGHT INTO WEDNESDAY. TRAVEL IS NOT RECOMMENDED. WIND CHILLS WILL BE EXTREMELY COLD...WITH LIFE THREATENING CONDITIONS IF CAUGHT OUTSIDE. 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. && $$ COZ033-034-241200- /O.CON.KBOU.WS.W.0012.101124T0700Z-101125T0000Z/ 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 750 PM MST TUE NOV 23 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY. * TIMING...SNOW AND WIND SPEEDS WILL BE ON THE INCREASE LATE TONIGHT. AT THIS TIME...THE HEAVIEST SNOW AND STRONGEST WINDS ARE EXPECTED TO OCCUR FROM 3 AM LATE TONIGHT UNTIL NOON WEDNESDAY...BEFORE A SLIGHT IMPROVEMENT OCCURS WEDNESDAY AFTERNOON. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS OF 4 TO 8 INCHES CAN BE EXPECTED. SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS IN EXCESS OF 50 MPH OVER THE HIGHER MOUNTAINS AND PASSES WILL PRODUCE NEAR BLIZZARD CONDITIONS AT TIMES. * IMPACTS...TRAVEL WILL BECOME EXTREMELY DANGEROUS OR IMPOSSIBLE LATE TONIGHT INTO WEDNESDAY. TRAVEL IS NOT RECOMMENDED. WIND CHILLS WILL BE EXTREMELY COLD...WITH POTENTIALLY LIFE THREATENING CONDITIONS IF CAUGHT OUTSIDE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS AND STRONG WINDS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. 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. && $$ BARJENBRUCH
346 WWUS45 KBOU 240341 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 841 PM MST TUE NOV 23 2010 ...SIGNIFICANT WINTER STORM CONTINUES MOVING TOWARD COLORADO... .A STORM SYSTEM PACKING VERY STRONG WINDS AND ARCTIC COLD SWEEPING ACROSS UTAH AND WYOMING THIS EVENING WILL MOVE ACROSS COLORADO LATER TONIGHT INTO WEDNESDAY MORNING. THIS WILL BRING MORE SNOW AND BLOWING SNOW TO THE MOUNTAINS OF COLORADO. TRAVEL WILL BE VERY HAZARDOUS LATE TONIGHT INTO WEDNESDAY ACROSS COLORADO AND ROAD CLOSURES ARE POSSIBLE. THE STRONG WINDS ASSOCIATED WITH THIS STORM SYSTEM ARE EXPECTED TO PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW...WITH BLIZZARD CONDITIONS IN THE MOUNTAINS OF WESTERN COLORADO. THE NORTHERN MOUNTAINS INCLUDING INTERSTATE 70 THROUGH SUMMIT COUNTY AND THE APPROACHES TO THE EISENHOWER TUNNEL MAY ALSO SEE A BRIEF PERIOD OF BLIZZARD CONDITIONS DURING THE PERIOD OF MOST INTENSE SNOW AND WIND LATE TONIGHT INTO WEDNESDAY MORNING. TEMPERATURES WILL TURN VERY COLD...AND COMBINED WITH THE STRONG WINDS POTENTIALLY LIFE THREATENING WEATHER CONDITIONS WILL OCCUR IF SNOWBOUND AND CAUGHT OUTSIDE. COZ031-241200- /O.CON.KBOU.BZ.W.0002.101124T0700Z-101125T0000Z/ 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 841 PM MST TUE NOV 23 2010 ...BLIZZARD WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY... A BLIZZARD WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY. * TIMING...SNOW AND WIND SPEEDS WILL INCREASE TONIGHT. THE HEAVIEST SNOW AND STRONGEST WINDS ARE EXPECTED TO OCCUR BETWEEN MIDNIGHT TONIGHT AND NOON WEDNESDAY...WITH A SLIGHT IMPROVEMENT BY WEDNESDAY AFTERNOON. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS OF 6 TO 12 INCHES CAN BE EXPECTED. SOUTHWEST WINDS OF 25 TO 40 MPH WITH GUSTS AROUND 60 MPH ON THE HIGHER MOUNTAINS AND PASSES WILL PRODUCE BLIZZARD CONDITIONS AND NEAR ZERO VISIBILITIES AT TIMES. * IMPACTS...TRAVEL WILL BECOME EXTREMELY DANGEROUS OR IMPOSSIBLE TONIGHT INTO WEDNESDAY. TRAVEL IS NOT RECOMMENDED. WIND CHILLS WILL BE EXTREMELY COLD...WITH LIFE THREATENING CONDITIONS IF CAUGHT OUTSIDE. 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. && $$ COZ033-034-241200- /O.CON.KBOU.WS.W.0012.101124T0700Z-101125T0000Z/ 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 841 PM MST TUE NOV 23 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY. * TIMING...SNOW AND WIND SPEEDS WILL BE ON THE INCREASE LATE TONIGHT. AT THIS TIME...THE HEAVIEST SNOW AND STRONGEST WINDS ARE EXPECTED TO OCCUR FROM 3 AM LATE TONIGHT UNTIL NOON WEDNESDAY...BEFORE A SLIGHT IMPROVEMENT OCCURS WEDNESDAY AFTERNOON. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS OF 4 TO 8 INCHES CAN BE EXPECTED. SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS IN EXCESS OF 50 MPH OVER THE HIGHER MOUNTAINS AND PASSES WILL PRODUCE NEAR BLIZZARD CONDITIONS AT TIMES. * IMPACTS...TRAVEL WILL BECOME EXTREMELY DANGEROUS OR IMPOSSIBLE LATE TONIGHT INTO WEDNESDAY. TRAVEL IS NOT RECOMMENDED. WIND CHILLS WILL BE EXTREMELY COLD...WITH POTENTIALLY LIFE THREATENING CONDITIONS IF CAUGHT OUTSIDE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS AND STRONG WINDS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. 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. && $$ COZ030-032-241200- /O.NEW.KBOU.WW.Y.0027.101124T0700Z-101125T0000Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 841 PM MST TUE NOV 23 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST WEDNESDAY. * TIMING...SNOW AND BLOWING SNOW WILL DEVELOP AFTER MIDNIGHT TONIGHT...AND CONTINUE THROUGH WEDNESDAY. SOME IMPROVEMENT CAN BE EXPECTED BY WEDNESDAY AFTERNOON. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS WILL RANGE BETWEEN 2 AND 5 INCHES. SOUTHWEST TO WEST WINDS AT 15 TO 25 MPH WILL GUST AS HIGH AS 35 MPH...PRODUCING CONSIDERABLE BLOWING SNOW ESPECIALLY IN OPEN AREAS. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO THE SNOW...BLOWING AND DRIFTING SNOW...SNOWPACKED ROADS...AND LIMITED VISIBILITIES. TEMPERATURES WILL ALSO TURN VERY COLD...SO TAKE ALONG A WINTER SURVIVAL KIT IN THE EVENT YOU BECOME STRANDED OR HAVE CAR TROUBLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ BARJENBRUCH
210 WWUS45 KBOU 241222 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 522 AM MST WED NOV 24 2010 ...WINTER STORM MOVING ACROSS THE NORTHERN MOUNTAINS BUT WEAKENING... .A STORM SYSTEM WILL BRING STRONG WINDS AND PERIODS OF HEAVY SNOW TO THE NORTH CENTRAL COLORADO MOUNTAINS THIS MORNING...THEN THE SNOW WILL DIMINISH THIS AFTERNOON. THE HEAVIEST SNOW WILL BE AROUND VAIL...BERTHOUD...AND RABBIT EARS PASS THROUGH ABOUT MID MORNING. SNOWFALL IS EXPECTED TO BE A BIT LESS THAN EARLIER FORECAST...AND THE STRONGEST WINDS HAVE PASSED...SO THE BLIZZARD AND WINTER STORM WARNINGS HAVE BEEN DOWNGRADED TO WINTER WEATHER ADVISORIES. TRAVELERS SHOULD STILL EXPECT WINTER DRIVING CONDITIONS OVER THE HIGHER MOUNTAINS HOWEVER...ESPECIALLY THIS MORNING. COZ031-242030- /O.CAN.KBOU.BZ.W.0002.000000T0000Z-101125T0000Z/ /O.EXA.KBOU.WW.Y.0027.000000T0000Z-101125T0000Z/ 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 522 AM MST WED NOV 24 2010 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...BLIZZARD 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 5 PM MST THIS AFTERNOON. THE BLIZZARD WARNING HAS BEEN CANCELLED. * TIMING...SNOW AND BLOWING SNOW WILL CONTINUE THIS MORNING...WITH SOME IMPROVEMENT THIS AFTERNOON. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS WILL RANGE BETWEEN 5 AND 10 INCHES. WEST WINDS AT 15 TO 25 MPH WILL GUST AS HIGH AS 35 MPH...PRODUCING CONSIDERABLE BLOWING SNOW ESPECIALLY IN OPEN AREAS. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO THE SNOW...BLOWING AND DRIFTING SNOW...SNOWPACKED ROADS...AND LIMITED VISIBILITIES. TEMPERATURES WILL ALSO TURN VERY COLD WITH WIND CHILLS BELOW ZERO...SO TAKE ALONG A WINTER SURVIVAL KIT IN THE EVENT YOU BECOME STRANDED OR HAVE CAR TROUBLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ033-034-242030- /O.CAN.KBOU.WS.W.0012.000000T0000Z-101125T0000Z/ /O.EXA.KBOU.WW.Y.0027.000000T0000Z-101125T0000Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 522 AM MST WED NOV 24 2010 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. THE WINTER STORM WARNING HAS BEEN CANCELLED. * TIMING...SNOW AND BLOWING SNOW WILL CONTINUE TODAY...WITH PERIODS OF HEAVY SNOW THIS MORNING. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS WILL RANGE BETWEEN 4 AND 8 INCHES. WEST WINDS AT 15 TO 25 MPH WILL GUST AS HIGH AS 40 MPH...PRODUCING CONSIDERABLE BLOWING SNOW ESPECIALLY IN OPEN AREAS. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO THE SNOW...BLOWING AND DRIFTING SNOW...SNOWPACKED ROADS...AND LIMITED VISIBILITIES. TEMPERATURES WILL ALSO TURN VERY COLD WITH WIND CHILLS BELOW ZERO...SO TAKE ALONG A WINTER SURVIVAL KIT IN THE EVENT YOU BECOME STRANDED OR HAVE CAR TROUBLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ030-032-241900- /O.EXT.KBOU.WW.Y.0027.000000T0000Z-101124T1900Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 522 AM MST WED NOV 24 2010 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST TODAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL NOON MST TODAY. * TIMING...PERIODS OF SNOW AND BLOWING SNOW WILL CONTINUE TODAY...WITH MOST OF THE SNOWFALL THIS MORNING. * ACCUMULATION/WIND...TOTAL ACCUMULATIONS WILL RANGE BETWEEN 3 AND 6 INCHES. SOUTHWEST TO WEST WINDS AT 15 TO 25 MPH WILL GUST AS HIGH AS 35 MPH...PRODUCING CONSIDERABLE BLOWING SNOW ESPECIALLY IN OPEN AREAS. * IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO THE SNOW...BLOWING AND DRIFTING SNOW...SNOWPACKED ROADS...AND LIMITED VISIBILITIES. TEMPERATURES WILL ALSO TURN VERY COLD WITH WIND CHILLS NEAR ZERO...SO TAKE ALONG A WINTER SURVIVAL KIT IN THE EVENT YOU BECOME STRANDED OR HAVE CAR TROUBLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ GIMMESTAD
What forecasters said that day
The local office's own words before this blizzard warning 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 blizzard warning went out at Nov 22, 9:45 PM MST, 3 minutes earlier.
Area forecast discussion, Nov 22, 9:45 PM MST, 3 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER CO...UPDATED 945 PM MST MON NOV 22 2010 .EVEING UPDATE....UPDATED THE HIGHLIGHTS BELOW. WE HAVE DECIDED TO ISSUE A BLIZZARD WARNING FOR ZONE 31 STARTING MIDNIGHT TUESDAY NIGHT...AND A WINTER STORM WARNING FOR ZONES 33 AND 34 STARTING MIDNIGHT TUESDAY NIGHT. THE HIGHLIGHTS WILL CONTINUE THROUGH 5 PM MST WEDNESDAY. THE COMBINATION OF SNOW AND WIND WILL BE GREATEST IN ZONE 31 THEREFORE THE BLIZZARD WARNING HAS BEEN ISSUED FOR THIS AREA. THE WINDS ARE NOT EXPECTED TO BE AS STRONG IN ZONES 33 AND 34 ONCE THE SNOW STARTS. THE SNOW AMOUNTS MAY BE ON THE LOW SIDE OF THE CRITERIA FOR A WINTER STORM WARNING...BUT WITH THE HOLIDAY WEEKEND AND THE STRONGER WINDS OVER THE STATE...A WINTER STORM WARNING LOOKS LIKE A BETTER FIT VS A WINTER WEATHER ADVISORY FOR ZONES 33 AND 34. .SHORT TERM...MAIN TROUGH AXIS IS EXITING EASTERN COLORADO AT THIS TIME BUT A SECONDARY AREA OF MOISTURE/LIFT WILL MOVE ACROSS THE MOUNTAINS THIS MORNING INTO EARLY AFTERNOON. SNOW HAS DECREASED IN THE MOUNTAINS BUT WILL BE INCREASING AGAIN THIS MORNING. MEANWHILE WESTERLY WINDS ALOFT HAVE INCREASED WITH PLATTEVILLE PROFILER SHOWING 45 KNOTS AT RIDGETOP LEVEL. WITH ALL THE WIND I WILL KEEP A WINTER WEATHER ADVISORY GOING FOR THE HIGHER MOUNTAINS THOUGH I WILL ONLY INCREASE THE SNOW AMOUNTS SLIGHTLY. ALSO TWEAKED THE WIND FORECAST SLIGHTLY AS NAM AND ESPECIALLY THE HRRR TRANSITION FROM A MOUNTAIN WAVE WITH FAIRLY LIGHT WINDS EAST OF THE MOUNTAINS THIS MORNING TO A MIXED OUT WESTERLY FLOW THIS AFTERNOON. COULD BE SOME STRONG GUSTS IN THE FOOTHILLS THIS AFTERNOON...BUT MAINLY DUE TO MIXING AS THERE IS NOTHING TO AMPLIFY THE FLOW. SUBSIDENCE TAKES OVER DURING THE AFTERNOON THOUGH MOISTURE WILL ONLY GRADUALLY DIMINISH IN THE MOUNTAINS. WITH DRY LOW LEVELS AND WIND EXPECTED TO DROP OFF...I LOWERED THE FORECAST LOWS ON THE PLAINS A COUPLE OF DEGREES. .LONG TERM...TUESDAY THRU WEDNESDAY TIME FRAME...DEEPENING UPPER TROUGH DROPPING INTO THE GREAT BASIN PRODUCES MOST IMPRESSIVE LARGE SCALE ASCENT ALONG THE WAY. MODELS SHOW THE BOTTOM END OF THIS TROUGH SWINGING ACROSS NEVADA AND UTAH TUESDAY NIGHT...THEN LIFTING IT NEWRD OVER ERN UTAH AND NWRN COLORADO BY WEDNESDAY MORNING. POWERFUL 140-150KT PACIFIC JET NOSING UP OVER NWRN COLORADO TUESDAY EVENING TRANSLATES SLOWLY E-SEWRD OVERNIGHT ENDING UP OVER SERN COLORADO BY WED AFTERNOON. MODELS INDICATE SWLY WINDS OF 30-40KT TUESDAY NIGHT AT MTN TOP LEVEL ACROSS THE NRN MTN ZONES LATE TUE NIGHT AS THE CORE OF THE JET PASSES JUST TO THE SOUTH OF THE AREA. SLIGHT WARMING AHEAD OF THE TROUGH SHOULD DELAY HE BEST SNOW PRODUCTION UNTIL AFTER 06Z/WED WHEN COLD AIR ADVECTION FINALLY KICKS WITH A GRADUAL SHIFT TO WLY WINDS TOWARD MORNING. LOCAL OROGRAPHIC SNOW MODEL NOT ALL THAT OPTIMISTIC WITH SNOW AMTS SINCE DEPTH OF MOISTURE AND WIND DIRECTION LESS THAN FAVORABLE OVER THE NRN COLORADO MTNS. FM 06Z/WED TO 15Z/WED MODEL GENERATE SNOW AMTS ON THE ORDER OF 2-5 INCHES IN MTN ZONES 31 AND 33 AND 1-3 INCHES IN MTN ZONE 34. AFTER WINDS SHIFT TO WLY AND MID-LVL COLD AIR ARRIVES... MODEL SHOWS ANOTHER 1-3 INCHES IN THE NRN MTNS BY 19Z/WED. BUT ITS THE POTENTIAL FOR POOR VISIBILITIES AND DIFFICULT IF NOT HAZARDOUS DRIVING CONDITIONS DUE TO BLOWING AND DRIFTING SNOW...ESPLY ABOVE TIMBERLINE AND ON THE HIGHER MTN PASSES THAT HAS PROMPTED ME TO ISSUE A WINTER STORM WATCH. AND WITH THE UPCOMING HOLIDAY TRAVEL... WILL RUN THE WATCH FOR THE NRN MTN ZONES 31 AND 33 FROM 07Z/WED TO 19Z/WED WITH POTENTIAL STORM TOTAL SNOW AMOUNTS RANGING FM 4-8 INCHES. BY WEDNESDAY AFTERNOON...TROUGH MOVES OUT AND BITTER COLD ARCTIC AIR SLIPS DOWN FROM WYOMING...INITIALLY OUT ACROSS THE NERN CORNER OF THE STATE WEDNESDAY AFTERNOON. SHOULD SEE THIS BITTER COLD AIRMASS PUSHED UP AGAINST THE FRONT RANGE BY WEDNESDAY EVENING. MAY EVEN SEE A FEW LIGHT SNOW SHOWERS ON THE PLAINS PRIOR TO ITS PASSES...PARTLY IN RESPONSE TO FORCING ALOFT. SO WILL HANG ONTO LOW POPS EAST OF THE MTNS ON WED...EVEN THOSE MODELS SHOW A LACK OF ANY QPF...BECAUSE ANY PRECIPITATION SHOULD BE LIGHT. REST OF THE WEEK...THANKSGIVING DAY LOOKS QUITE CHILLY AS ARCTIC AIR CONTINUES TO SPILL DOWN FROM WYOMING ON GUSTY N-NWLY WINDS. A WEAK DISTURBANCE EMBEDDED IN NWLY FLOW ALOFT WILL CONTINUE TO PRODUCE SCATTERED SNOW SHOWERS IN THE HIGH COUNTRY AND POSSIBLY ISOLATED SNOW SHOWERS ON THE PLAINS ON THURSDAY. BUT DO NOT HAVE ENOUGH CONFIDENCE IN THE MODELS TO GO WITH PRECIP EAST OF THE MTNS AT THIS TIME. REST OF THE WEEK...UPPER AIR RIDGING AND WARMING OUT WEST SHOULD BEGIN TO AFFECT THE FCST AREA STARTING FRIDAY AND CONTINUE PRETTY MUCH THROUGH THE WEEKEND. COULD SEE MAX TEMPERATURES AS MUCH AS 10 TO 15F ABOVE AVERAGE ON THE PLAINS BY SATURDAY. && .AVIATION...PATCHY FOG MAINLY NORTH OF DENVER IS NOT EXPECTED TO AFFECT APPROACHES TO KDEN. VFR CONDITIONS ARE EXPECTED THROUGH TONIGHT. STILL EXPECTING WEST WINDS AROUND 20 KNOTS WITH GUSTS TO 30 KNOTS BETWEEN 18Z AND 00Z. && .BOU WATCHES/WARNINGS/ADVISORIES...BLIZZARD WARNING IN EFFECT MIDNIGHT TUESDAY NIGHT UNTIL 5 PM MST WEDNESDAY AFTN FOR WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET...ZONE 31. A WINTER STORM WARNING IN EFFECT MIDNIGHT TUESDAY NIGHT UNTIL 5 PM WEDNESDAY AFTN FOR THE REST OF THE NORTH CENTRAL MOUNTAINS...ZONES 33 AND 34. && D_L/BAKER
Hazardous weather outlook, Nov 22, 11:12 AM MST, 10 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER CO 1112 AM MST MON NOV 22 2010 COZ030>051-231300- 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- 1112 AM MST MON NOV 22 2010 ...WINTER WEATHER ADVISORY TODAY FOR THE HIGHER MOUNTAINS... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT OCCASIONAL SNOW ALONG WITH GUSTY WINDS WILL CONTINUE ACROSS THE MOUNTAINS TODAY...WITH SCATTERED SNOW SHOWERS IN THE MOUNTAINS AND HIGHER FOOTHILLS. ADDITIONAL SNOW ACCUMULATION OF 2 TO 4 INCHES CAN BE EXPECTED AT ELEVATIONS ABOVE 9000 FEET. THE SNOW WILL DIMINISH THIS EVENING. IN ADDITION...WEST WINDS WILL GUST TO AROUND 50 MPH OVER THE HIGHER MOUNTAINS AND THE FRONT RANGE FOOTHILLS WITH GUSTS TO 40 MPH ACROSS THE MOUNTAIN VALLEYS. THE GUSTY WINDS WILL PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW OVER THE HIGHER MOUNTAIN PASSES. ACROSS THE PLAINS...WESTERLY WINDS OF 15 TO 30 WILL CONTINUE ALONG THE URBAN CORRIDOR AND ADJACENT PLAINS THROUGH THE AFTERNOON. THE WINDS WILL DECREASE MOST AREAS THIS EVENING...CONTINUING ACROSS THE MOUNTAINS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY AFTER A LULL IN SNOWFALL ON TUESDAY...SNOWFALL WILL AGAIN DEVELOP AND INCREASE IN THE NORTH CENTRAL MOUNTAINS OF COLORADO TUESDAY NIGHT AND WEDNESDAY. RIDGETOPS AND WEST FACING MOUNTAIN SLOPES COULD SEE ANOTHER 4 TO 8 INCHES OF SNOW DURING THIS 36 HOUR PERIOD. FURTHERMORE...WEST TO SOUTHWEST WINDS OF 20 TO 35 MPH AND GUSTS TO AROUND 60 MPH NEAR TIMBERLINE MAY PRODUCE QUITE A BIT OF BLOWING AND DRIFTING SNOW...CREATING DIFFICULT IF NOT HAZARDOUS DRIVING CONDITIONS ON THE HIGH MOUNTAIN PASSES. ACROSS THE NORTHEAST PLAINS...IT SHOULD REMAIN DRY EXCEPT FOR A SLIGHT CHANCE OF SNOW ACROSS THE NORTHEAST CORNER OF THE STATE ON WEDNESDAY. TEMPERATURES ARE ALSO EXPECTED TO TURN MUCH COLDER ON WEDNESDAY WITH READINGS REMAINING WELL BELOW AVERAGE THROUGH THANKSGIVING DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. HOWEVER... SNOWFALL REPORTS FROM MOUNTAIN SPOTTERS WILL BE APPRECIATED. D-L/BAKER
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 22, 9:48 PM MST | Winter Storm Warning | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 32 hr |
Nearby
Blizzard Warnings in Colorado, 2010Every blizzard warning in 2010
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.