Alert archive / Colorado / Winter Storm Warnings in 2011
Winter Storm Warning 3, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Feb 7, 2011, 3:44 PM MST for 4 counties in Colorado. It was in force for 12 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
- Feb 7, 2011, 3:44 PM MST (22:44 UTC)
- Expired
- Feb 8, 2011, 4:02 AM MST
- In force
- 12 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Boulder County, CO, Grand County, CO, Jackson County, CO, Larimer County, CO
The radar
The Cheyenne radar (KCYS), 121 km from the middle of the area, began a volume at 22:47 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 7, 10:10 PM MST | HEAVY SNOW 2 | 4 Ene Nederland, CO | ONE INCH PER HOUR |
| Feb 7, 10:20 PM MST | HEAVY SNOW 2 | 4 Ene Nederland, CO | |
| Feb 8, 12:05 AM MST | SNOW 3 | Boulder, CO | NATIONAL WEATHER SERVICE OFFICE |
| Feb 8, 1:20 AM MST | SNOW 1 | 4 N Loveland, CO | |
| Feb 8, 1:22 AM MST | SNOW 1 | 4 E Fort Collins, CO | |
| Feb 8, 2:54 AM MST | SNOW 3.3 | 1 Nnw Louisville, 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 12:00Z, 10.7 hours before the alert went out and 227 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
- 1467 m above ground
- 0-6 km bulk shear
- 90 kt
- 0-1 km storm-relative helicity
- 246 m²/s²
- 0-3 km storm-relative helicity
- 399 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
611 WWUS45 KBOU 072244 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 344 PM MST MON FEB 7 2011 ...SNOW...COLD...AND HAZARDOUS TRAVEL CONDITIONS RETURN TO NORTHEAST AND NORTH CENTRAL COLORADO TONIGHT AND TUESDAY... .THE NEXT WINTER STORM WILL BEGIN MOVING INTO THE FORECAST AREA BRINGING HEAVIER SNOW TO THE NORTH CENTRAL MOUNTAINS THIS AFTERNOON THROUGH TONIGHT. AN ARCTIC COLD FRONT WILL DROP ACROSS NORTHEAST COLORADO LATE THIS EVENING...REACHING DENVER AND THE I- 70 CORRIDOR BY OR SHORTLY BEFORE MIDNIGHT. GUSTY NORTH TO NORTHEAST WINDS WILL OCCUR WITH THE FRONTAL PASSAGE...WITH SNOW QUICKLY DEVELOPING. THE HEAVIEST SNOW IS EXPECTED TO OCCUR BETWEEN 2 AM AND 8 AM ACROSS THE FRONT RANGE URBAN CORRIDOR... CREATING A DIFFICULT AND SLOW COMMUTE TUESDAY MORNING WITH SNOWPACKED ROADS AND POOR VISIBILITIES. COZ033-080645- /O.UPG.KBOU.WW.Y.0009.000000T0000Z-110209T0000Z/ /O.NEW.KBOU.WS.W.0003.110207T2244Z-110208T1900Z/ 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 344 PM MST MON FEB 7 2011 ...WINTER STORM WARNING IN EFFECT UNTIL NOON MST TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING WHICH IS IN EFFECT UNTIL NOON MST TUESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...SNOW WILL INCREASE IN INTENSITY THIS AFTERNOON AND EVENING...AND CONTINUE THROUGH TUESDAY MORNING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY TUESDAY AFTERNOON. * ACCUMULATION/WIND...SNOWFALL AMOUNTS OF 8 TO 18 INCHES ARE EXPECTED BY TUESDAY AFTERNOON. WIND GUSTS IN EXCESS OF 40 MPH WILL CONTINUE ACROSS THE MOUNTAINS THROUGH THIS EVENING...AND THEN GRADUALLY DECREASE OVERNIGHT. * IMPACTS...ROADS WILL BE ICY AND SNOW PACKED WITH VERY HAZARDOUS DRIVING CONDITIONS EXPECTED. VISIBILITIES COULD DROP BELOW ONE QUARTER OF A MILE IN THE HEAVIER SNOW AND STRONGER WINDS. 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. && $$ COZ031-080645- /O.UPG.KBOU.WW.Y.0009.000000T0000Z-110208T1800Z/ /O.NEW.KBOU.WS.W.0003.110207T2244Z-110208T1900Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 344 PM MST MON FEB 7 2011 ...WINTER STORM WARNING IN EFFECT UNTIL NOON MST TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL NOON MST TUESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...SNOW WILL INCREASE IN INTENSITY THIS AFTERNOON AND EVENING...AND CONTINUE THROUGH TUESDAY MORNING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY TUESDAY AFTERNOON. * ACCUMULATION/WIND...SNOWFALL AMOUNTS OF 10 TO 18 INCHES ARE EXPECTED BY TUESDAY AFTERNOON. WIND GUSTS IN EXCESS OF 40 MPH WILL CONTINUE ACROSS THE MOUNTAINS THROUGH THIS EVENING...AND THEN GRADUALLY DECREASE OVERNIGHT. * IMPACTS...ROADS WILL BE ICY AND SNOW PACKED WITH VERY HAZARDOUS DRIVING CONDITIONS EXPECTED. VISIBILITIES COULD DROP BELOW ONE QUARTER OF A MILE IN THE HEAVIER SNOW AND STRONGER WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ034-080645- /O.CON.KBOU.WW.Y.0009.000000T0000Z-110209T0000Z/ 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 344 PM MST MON FEB 7 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST TUESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST TUESDAY. * TIMING...SNOW WILL INCREASE IN INTENSITY THIS AFTERNOON AND EVENING...AND CONTINUE THROUGH TUESDAY MORNING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY TUESDAY AFTERNOON. * ACCUMULATION/WIND...SNOWFALL AMOUNTS OF 8 TO 14 INCHES ARE EXPECTED BY TUESDAY AFTERNOON. WIND GUSTS IN EXCESS OF 40 MPH WILL CONTINUE ACROSS THE MOUNTAINS THROUGH THIS EVENING...AND THEN GRADUALLY DECREASE OVERNIGHT. * IMPACTS...ROADS WILL BE ICY AND SNOW PACKED WITH VERY HAZARDOUS DRIVING CONDITIONS EXPECTED. VISIBILITIES COULD DROP BELOW ONE QUARTER OF A MILE IN THE HEAVIER SNOW AND STRONGER WINDS. 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. && $$ COZ035-036-080645- /O.CON.KBOU.WW.Y.0009.110208T0600Z-110209T0000Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND... RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK 344 PM MST MON FEB 7 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY. * TIMING...SNOW WILL BECOME WIDESPREAD AFTER MIDNIGHT TONIGHT AND CONTINUE INTO TUESDAY. THE HEAVIEST SNOW WILL FALL LATE TONIGHT AND TUESDAY MORNING. SNOW WILL DECREASE IN INTENSITY LATE TUESDAY MORNING AND COME TO AN END BY LATE TUESDAY AFTERNOON. * ACCUMULATION...SNOWFALL AMOUNTS OF 5 TO 10 INCHES ARE EXPECTED BY TUESDAY AFTERNOON...WITH UP TO 12 INCHES IN THE FOOTHILLS SOUTHWEST OF DENVER. * IMPACTS...ROADS WILL BE ICY AND SNOW PACKED WITH VERY HAZARDOUS DRIVING CONDITIONS EXPECTED. VISIBILITIES COULD DROP BELOW ONE QUARTER OF A MILE IN THE HEAVIER SNOW AND STRONGER WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ038>051-080645- /O.CON.KBOU.WW.Y.0009.110208T0600Z-110209T0000Z/ 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- INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND... NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...AURORA... BRIGHTON...CITY OF DENVER...DENVER INTERNATIONAL AIRPORT... HIGHLANDS RANCH...LITTLETON...PARKER...CASTLE ROCK...ELBERT... FONDIS...KIOWA...LARKSPUR...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...EATON...FORT LUPTON...GREELEY...ROGGEN... BRUSH...FORT MORGAN...GOODRICH...WIGGINS...BENNETT...BYERS... DEER TRAIL...LEADER...AGATE...HUGO...LIMON...MATHESON...FORDER... KARVAL...KUTCH...PUNKIN CENTER...CROOK...MERINO...STERLING... PEETZ...AKRON...COPE...LAST CHANCE...OTIS...JULESBURG...OVID... SEDGWICK...AMHERST...HAXTUN...HOLYOKE 344 PM MST MON FEB 7 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY. * TIMING...SNOW WILL DEVELOP BY OR SHORTLY AFTER MIDNIGHT TONIGHT AND CONTINUE INTO TUESDAY. THE HEAVIEST SNOW IS EXPECTED TO OCCUR BETWEEN 2 AM AND 8 AM...WHEN SNOWFALL RATES MAY APPROACH 1 INCH PER HOUR. SNOW WILL DECREASE IN INTENSITY LATE TUESDAY MORNING AND COME TO AN END BY LATE TUESDAY AFTERNOON. * ACCUMULATION/WIND...SNOWFALL AMOUNTS OF 3 TO 6 INCHES WITH UP TO 8 INCHES IN THE WESTERN AND SOUTHERN SUBURBS OF THE DENVER METRO AREA. NORTHERLY WINDS OF 15 TO 25 MPH WITH GUSTS TO 35 MPH EAST OF I-25 WILL CAUSE BLOWING AND DRIFTING SNOW TONIGHT AND TUESDAY MORNING. * IMPACTS...ROADS WILL BE ICY AND SNOW PACKED WITH VERY HAZARDOUS DRIVING CONDITIONS EXPECTED. VISIBILITIES COULD DROP BELOW ONE QUARTER OF A MILE IN THE HEAVIER SNOW AND STRONGER WINDS. 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. && $$
2 follow-up statements
345 WWUS45 KBOU 080227 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 727 PM MST MON FEB 7 2011 ...ANOTHER SNOW STORM MOVING INTO NORTHERN COLORADO... .SNOW WAS DEVELOPING ACROSS NORTHERN COLORADO MONDAY EVENING WHILE AN ARCTIC COLD FRONT MOVED IN FROM WYOMING. SNOW WILL INCREASE IN THE NORTHERN MOUNTAINS AND BE HEAVY AT TIMES OVERNIGHT. ON THE PLAINS GUSTY NORTH TO NORTHEAST WINDS WILL BECOME WIDESPREAD WITH SNOW QUICKLY DEVELOPING. THE HEAVIEST SNOW IS EXPECTED TO OCCUR BETWEEN 10 PM AND 6 AM ACROSS THE FRONT RANGE URBAN CORRIDOR...CREATING A DIFFICULT AND SLOW COMMUTE TUESDAY MORNING WITH SNOWPACKED ROADS AND POOR VISIBILITIES. COZ031-033-081030- /O.CON.KBOU.WS.W.0003.000000T0000Z-110208T1900Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS 727 PM MST MON FEB 7 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TUESDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TUESDAY. * TIMING...SNOW WILL BE HEAVY AT TIMES THROUGH TUESDAY MORNING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY TUESDAY AFTERNOON. * ACCUMULATION/WIND...SNOWFALL AMOUNTS OF 10 TO 18 INCHES ARE EXPECTED BY TUESDAY AFTERNOON. WIND GUSTS UP TO 40 MPH WILL CAUSE BLOWING AND DRIFTING SNOW OVER THE HIGHER AREAS THIS EVENING... THEN WINDS WILL DECREASE. * IMPACTS...ROADS WILL BE ICY AND SNOW PACKED WITH VERY HAZARDOUS DRIVING CONDITIONS EXPECTED. ROAD CLOSURES AND TRAVEL RESTRICTIONS ARE LIKELY. VISIBILITIES COULD DROP BELOW ONE QUARTER OF A MILE IN THE HEAVIER SNOW AND STRONGER WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVEL WILL BE VERY DIFFICULT THROUGH TUESDAY MORNING. TRAVELERS SHOULD CONSIDER DELAYING TRAVEL AND CHECK THE LATEST ROAD CONDITIONS AND RESTRICTIONS. IF YOU DO TRAVEL...CARRY AN EMERGENCY KIT THAT INCLUDES WARM CLOTHES...EXTRA FOOD AND WATER...AND A SHOVEL. && $$ COZ030-032-081030- /O.EXB.KBOU.WW.Y.0009.110208T0227Z-110208T1900Z/ 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 727 PM MST MON FEB 7 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MST TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL NOON MST TUESDAY. * TIMING...SNOW WILL BE HEAVY AT TIMES OVERNIGHT AND CONTINUE INTO TUESDAY. THE HEAVIEST SNOW IS EXPECTED TO OCCUR BETWEEN 10 PM AND 6 AM...WHEN SNOWFALL RATES OVER 1 INCH PER HOUR ARE POSSIBLE. SNOW WILL DECREASE IN INTENSITY LATE TUESDAY MORNING AND COME TO AN END BY LATE TUESDAY AFTERNOON. * ACCUMULATION/WIND...SNOWFALL AMOUNTS OF 6 TO 14 INCHES ARE EXPECTED BY TUESDAY AFTERNOON. * IMPACTS...ROADS WILL BE ICY AND SNOW PACKED. VISIBILITIES COULD DROP BELOW ONE QUARTER OF A MILE IN THE HEAVIER SNOW. 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. && $$ COZ034-081030- /O.CON.KBOU.WW.Y.0009.000000T0000Z-110209T0000Z/ SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...BERTHOUD PASS...BRECKENRIDGE... EAST SLOPES MOSQUITO RANGE...EAST SLOPES SOUTHERN GORE RANGE... EISENHOWER TUNNEL...INDIAN PEAKS...KENOSHA MOUNTAINS... MOUNT EVANS...WILLIAMS FORK MOUNTAINS...WINTER PARK 727 PM MST MON FEB 7 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST TUESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST TUESDAY. * TIMING...SNOW WILL INCREASE INCREASE THIS EVENING AND WILL BE HEAVY AT TIMES THROUGH TUESDAY MORNING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY TUESDAY AFTERNOON. * ACCUMULATION/WIND...SNOWFALL AMOUNTS OF 8 TO 16 INCHES ARE EXPECTED BY TUESDAY AFTERNOON. WIND GUSTS UP TO 40 MPH WILL PRODUCE BLOWING AND DRIFTING SNOW OVER HIGHER AREAS THIS EVENING... THEN DECREASE OVERNIGHT. * IMPACTS...ROADS WILL BE ICY AND SNOW PACKED WITH VERY HAZARDOUS DRIVING CONDITIONS EXPECTED. VISIBILITIES COULD DROP BELOW ONE QUARTER OF A MILE IN THE HEAVIER SNOW AND STRONGER WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ035-036-081030- /O.CON.KBOU.WW.Y.0009.110208T0600Z-110209T0000Z/ 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- INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND... RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK 727 PM MST MON FEB 7 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY. * TIMING...SNOW WILL DEVELOP FROM NORTH TO SOUTH IN THE FOOTHILLS BY THE EARLY MORNING HOURS AND CONTINUE INTO TUESDAY. THE HEAVIEST SNOW WILL FALL LATE TONIGHT AND TUESDAY MORNING. SNOW WILL DECREASE IN INTENSITY LATE TUESDAY MORNING AND COME TO AN END BY LATE TUESDAY AFTERNOON. * ACCUMULATION...SNOWFALL AMOUNTS OF 5 TO 10 INCHES ARE EXPECTED BY TUESDAY AFTERNOON...WITH UP TO 12 INCHES IN THE FOOTHILLS SOUTHWEST OF DENVER. * IMPACTS...ROADS WILL BE ICY AND SNOW PACKED WITH VERY HAZARDOUS DRIVING CONDITIONS EXPECTED. VISIBILITIES COULD DROP BELOW ONE QUARTER OF A MILE IN THE HEAVIER SNOW AND STRONGER WINDS. 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. && $$ COZ038>051-081030- /O.CON.KBOU.WW.Y.0009.110208T0600Z-110209T0000Z/ 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- INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND... NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...AURORA... BRIGHTON...CITY OF DENVER...DENVER INTERNATIONAL AIRPORT... HIGHLANDS RANCH...LITTLETON...PARKER...CASTLE ROCK...ELBERT... FONDIS...KIOWA...LARKSPUR...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...EATON...FORT LUPTON...GREELEY...ROGGEN... BRUSH...FORT MORGAN...GOODRICH...WIGGINS...BENNETT...BYERS... DEER TRAIL...LEADER...AGATE...HUGO...LIMON...MATHESON...FORDER... KARVAL...KUTCH...PUNKIN CENTER...CROOK...MERINO...STERLING... PEETZ...AKRON...COPE...LAST CHANCE...OTIS...JULESBURG...OVID... SEDGWICK...AMHERST...HAXTUN...HOLYOKE 727 PM MST MON FEB 7 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY. * TIMING...SNOW WILL DEVELOP FROM NORTH TO SOUTH BY THE EARLY MORNING HOURS...AND CONTINUE INTO TUESDAY. THE HEAVIEST SNOW IS EXPECTED TO OCCUR BETWEEN 10 PM AND 6 AM...WHEN SNOWFALL RATES MAY APPROACH 1 INCH PER HOUR. SNOW WILL DECREASE IN INTENSITY LATE TUESDAY MORNING AND COME TO AN END BY LATE TUESDAY AFTERNOON. * ACCUMULATION/WIND...SNOWFALL AMOUNTS OF 3 TO 6 INCHES WITH UP TO 8 INCHES IN THE WESTERN AND SOUTHERN SUBURBS OF THE DENVER METRO AREA. NORTHERLY WINDS OF 15 TO 25 MPH WITH GUSTS TO 35 MPH EAST OF I-25 WILL CAUSE BLOWING AND DRIFTING SNOW TONIGHT AND TUESDAY MORNING. * IMPACTS...ROADS WILL BE ICY AND SNOW PACKED WITH VERY HAZARDOUS DRIVING CONDITIONS EXPECTED. VISIBILITIES COULD DROP BELOW ONE QUARTER OF A MILE IN THE HEAVIER SNOW AND STRONGER WINDS. 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
715 WWUS45 KBOU 081102 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 402 AM MST TUE FEB 8 2011 COZ031-033-081900- /O.CAN.KBOU.WS.W.0003.000000T0000Z-110208T1900Z/ /O.EXB.KBOU.WW.Y.0009.000000T0000Z-110208T1900Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS 402 AM MST TUE FEB 8 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MST TODAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL NOON MST TODAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * TIMING...SNOWFALL WILL CONTINUE THROUGH LATE THIS MORNING...THEN TAPERING OFF IN THE AFTERNOON. * ACCUMULATION/WIND...ADDITIONAL SNOW AMOUNTS OF 2 TO 4 INCHES ARE TO BE EXPECTED BY NOON TODAY. NORTHEAST WINDS 15 TO 30 MPH WILL ALSO PRODUCE AREAS OF BLOWING AND DRIFTING SNOW ON THE HIGH PASSES. * IMPACTS...ICY AND SNOW PACKED ROADS WILL CREATE HAZARDOUS DRIVING CONDITIONS...ESPECIALLY OVER THE MOUNTAIN PASSES INCLUDING UP AROUND THE EISENHOWER TUNNEL. 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. && $$ COZ030-032-081215- /O.CAN.KBOU.WW.Y.0009.000000T0000Z-110208T1900Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 402 AM MST TUE FEB 8 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. LITTLE ADDITIONAL SNOWFALL IS EXPECTED IN THE MOUNTAIN VALLEYS OF NORTH CENTRAL COLORADO. WEATHER CONDITIONS WITH GRADUALLY IMPROVE THROUGH THE DAY. $$ COZ034-081900- /O.EXT.KBOU.WW.Y.0009.000000T0000Z-110208T1900Z/ 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 402 AM MST TUE FEB 8 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST TODAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL NOON MST TODAY. * TIMING...LIGHT TO MODERATE SNOWFALL WILL CONTINUE THROUGH LATE THIS MORNING...THEN GRADUALLY DECREASE IN THE AFTERNOON. * ACCUMULATION/WIND...ADDITIONAL SNOW AMOUNTS OF 2 TO 5 INCHES ARE EXPECTED BY NOON TODAY. WIND GUSTS UP TO 30 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW PARTICULARLY OVER THE HIGHER PASSES. * IMPACTS...ICY AND SNOW PACKED ROADS WILL CREATE HAZARDOUS DRIVING CONDITIONS. VISIBILITIES COULD DROP BELOW ONE QUARTER OF A MILE IN THE FALLING SNOW AND BLOWING SNOW. 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. && $$ COZ035-036-081900- /O.EXT.KBOU.WW.Y.0009.000000T0000Z-110208T1900Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND... RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK 402 AM MST TUE FEB 8 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST TODAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL NOON MST TODAY. * TIMING...LIGHT TO MODERATE SNOWFALL WILL CONTINUE THIS MORNING IN THE THE FRONT RANGE FOOTHILLS...WITH THE HEAVIER SNOWFALL OCCURRING IN AREAS GENERALLY SOUTH OF INTERSTATE 70. SNOWFALL SHOULD DECREASE BY LATE THIS MORNING AND END IN MOST AREAS BY LATE IN THE AFTERNOON. * ACCUMULATION...ADDITIONAL SNOW AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED BY NOON TODAY. * IMPACTS...BE ICY AND SNOW PACKED ROADS HAVE CREATED HAZARDOUS DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ038>040-042>045-048>051-081900- /O.EXT.KBOU.WW.Y.0009.000000T0000Z-110208T1900Z/ 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-NORTHEAST WELD COUNTY- CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-LOGAN COUNTY- WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND... NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...AURORA... BRIGHTON...CITY OF DENVER...DENVER INTERNATIONAL AIRPORT... HIGHLANDS RANCH...LITTLETON...PARKER...BRIGGSDALE...GROVER... PAWNEE BUTTES...RAYMER...STONEHAM...EATON...FORT LUPTON... GREELEY...ROGGEN...BRUSH...FORT MORGAN...GOODRICH...WIGGINS... BENNETT...BYERS...DEER TRAIL...LEADER...CROOK...MERINO... STERLING...PEETZ...AKRON...COPE...LAST CHANCE...OTIS... JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 402 AM MST TUE FEB 8 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST TODAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL NOON MST TODAY. * TIMING...LIGHT SNOW WILL CONTINUE EARLY THIS MORNING ALONG THE FRONT RANGE AND ACROSS THE PLAINS OF NORTHEAST COLORADO. MOST AREAS SHOULD SEE AN END TO SNOWFALL BY LATE THIS MORNING... EXCEPT IN HIGHER AREAS SOUTH OF DENVER AND ALONG THE PALMER DIVIDE IN DOUGLAS AND ELBERT COUNTIES WHERE LIGHT SNOWFALL MAY LINGER THROUGH THE AFTERNOON. * ACCUMULATION/WIND...ANOTHER INCH OR 2 OF SNOW MAY FALL BY LATE THIS MORNING...MAINLY OVER HIGHER AREAS SOUTH OF INTERSTATE 70. NORTHEAST WINDS OF 15 TO 25 MPH WILL ALSO CAUSE AREAS OF BLOWING SNOW. * IMPACTS...ICY AND SNOW PACKED ROADS WITH CREATE HAZARDOUS DRIVING CONDITIONS THIS MORNING. DRIVERS ARE URGED TO SLOW DOWN AS BRIDGES AND OVERPASSES WILL BE ESPECIALLY SLIPPERY. 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. && $$ COZ041-046-047-081900- /O.EXT.KBOU.WW.Y.0009.000000T0000Z-110208T1900Z/ ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...CASTLE ROCK...ELBERT...FONDIS...KIOWA... LARKSPUR...AGATE...HUGO...LIMON...MATHESON...FORDER...KARVAL... KUTCH...PUNKIN CENTER 402 AM MST TUE FEB 8 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MST TODAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL NOON MST TODAY. * TIMING...LIGHT TO MODERATE SNOWFALL WILL CONTINUE THROUGH MID- MORNING...THEN GRADUALLY DECREASE LATE MORNING AND IN THE AFTERNOON. * ACCUMULATION/WIND...ANOTHER 1 TO 3 OF SNOW WILL ACCUMULATE BY LATE THIS MORNING...MAINLY ALONG AND SOUTH INTERSTATE 70. NORTHEAST WINDS OF 15 TO 30 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. * IMPACTS...ICY AND SNOW PACKED ROADS WITH CREATE HAZARDOUS DRIVING CONDITIONS THIS MORNING. DRIVERS ARE URGED TO SLOW DOWN AS BRIDGES AND OVERPASSES WILL BE ESPECIALLY SLIPPERY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ BAKER
Nearby
Winter Storm Warnings in Colorado, 2011Every winter storm warning in 2011
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.