Alert archive / Colorado / Winter Storm Warnings in 2011
Winter Storm Warning 4, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Feb 16, 2011, 3:03 AM MST for Grand County, Jackson County, Colorado. It took effect at Feb 17, 2011, 12:00 AM MST. It was in force for 16 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
- Feb 16, 2011, 3:03 AM MST (10:03 UTC)
- In effect from
- Feb 17, 2011, 12:00 AM MST
- Expired
- Feb 17, 2011, 3:45 PM MST
- In force
- 16 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 10:01 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, 10.1 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2822 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 220 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
009 WWUS45 KBOU 161003 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 303 AM MST WED FEB 16 2011 .STRONG WINDS AND SNOW WILL DEVELOP IN THE MOUNTAINS TONIGHT... A PACIFIC STORM SYSTEM WILL MOVE INTO COLORADO BY TONIGHT WITH SNOW AND STRONG WINDS SPREADING ACROSS THE MOUNTAINS. THE COMBINATION OF FALLING SNOW AND STRONG WINDS GUSTING TO 70 MPH OR MORE ABOVE TIMBERLINE WILL CREATE HAZARDOUS OUTDOOR CONDITIONS. IF YOU ARE PLANNING TRAVEL INTO THE MOUNTAINS LATE TONIGHT THROUGH THURSDAY NIGHT...BE PREPARED FOR DANGEROUS AND SLOW TRAVEL CONDITIONS. VISIBILITIES WILL BE SEVERELY REDUCED IN AREAS OF HEAVIER SNOWFALL AND BLOWING SNOW...AND ROADS WILL BECOME SNOWPACKED AND ICY. COZ031-162000- /O.UPG.KBOU.WS.A.0003.110217T0600Z-110218T0600Z/ /O.NEW.KBOU.WS.W.0004.110217T0700Z-110218T0700Z/ 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 303 AM MST WED FEB 16 2011 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW WILL DEVELOP THIS EVENING AND THEN INCREASE IN INTENSITY OVERNIGHT INTO THURSDAY MORNING. THE SNOW WILL BE HEAVY AT TIMES FROM MIDNIGHT TONIGHT THROUGH THURSDAY...AND THEN GRADUALLY DIMINISH THURSDAY NIGHT. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 10 TO 20 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 20 TO 40 MPH WITH GUSTS TO 60 MPH ABOVE TIMBERLINE WILL BECOME WESTERLY ON THURSDAY AND SLOWLY DECREASE. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE NEAR BLIZZARD CONDITIONS AND EXTENSIVE TRAVEL DIFFICULTIES OVER THE HIGHER MOUNTAIN PASSES. CHAIN LAWS WILL LIKELY BE NEEDED FOR COMMERCIAL VEHICLES...AND ROAD CLOSURES ARE POSSIBLE. * OTHER IMPACTS...OUTDOOR ACTIVITIES WILL BE HAZARDOUS WITH POSSIBLE WHITEOUT CONDITIONS ESPECIALLY IN OPEN AREAS. WIND CHILL READINGS WILL DROP BELOW ZERO. 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. && $$ COZ033-034-162000- /O.UPG.KBOU.WS.A.0003.110217T0600Z-110218T0600Z/ /O.NEW.KBOU.WW.Y.0010.110217T0700Z-110218T0700Z/ 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 303 AM MST WED FEB 16 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT... 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 MIDNIGHT MST THURSDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW WILL GRADUALLY DEVELOP ACROSS THE FRONT RANGE MOUNTAINS AND SUMMIT COUNTY TONIGHT...BUT THEN BECOME HEAVIER THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES BEFORE DECREASING THURSDAY NIGHT. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 6 TO 12 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 20 TO 40 MPH WITH GUSTS TO 70 MPH OR MORE ABOVE TIMBERLINE WILL BECOME WESTERLY ON THURSDAY AND SLOWLY DECREASE. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS IN THE MOUNTAINS LATE TONIGHT THROUGH THURSDAY NIGHT. CHAIN LAWS WILL LIKELY BE NEEDED FOR COMMERCIAL VEHICLES ON THE APPROACHES TO THE EISENHOWER TUNNEL AND VAIL PASS ON INTERSTATE 70...AS WELL AS BERTHOUD PASS ON HIGHWAY 40 AND LOVELAND PASS ON HIGHWAY 6. * OTHER IMPACTS...VISIBILITIES WILL BE REDUCED IN OPEN AREAS... WITH SOME BLOWING AND DRIFTING SNOW EVEN IN THE MOUNTAIN VALLEYS. WIND CHILL READINGS WILL DROP BELOW ZERO. 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
6 follow-up statements
320 WWUS45 KBOU 161542 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 842 AM MST WED FEB 16 2011 .STRONG WINDS AND SNOW WILL DEVELOP IN THE MOUNTAINS TONIGHT... A PACIFIC STORM SYSTEM WILL MOVE INTO COLORADO BY TONIGHT WITH SNOW AND STRONG WINDS SPREADING ACROSS THE MOUNTAINS. THE COMBINATION OF FALLING SNOW AND STRONG WINDS GUSTING TO 70 MPH OR MORE ABOVE TIMBERLINE WILL CREATE HAZARDOUS OUTDOOR CONDITIONS. IF YOU ARE PLANNING TRAVEL INTO THE MOUNTAINS LATE TONIGHT THROUGH THURSDAY NIGHT...BE PREPARED FOR DANGEROUS AND SLOW TRAVEL CONDITIONS. VISIBILITIES WILL BE SEVERELY REDUCED IN AREAS OF HEAVIER SNOWFALL AND BLOWING SNOW...AND ROADS WILL BECOME SNOWPACKED AND ICY. COZ031-170000- /O.CON.KBOU.WS.W.0004.110217T0700Z-110218T0700Z/ 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 842 AM MST WED FEB 16 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT. * TIMING...SNOW WILL DEVELOP THIS EVENING AND THEN INCREASE IN INTENSITY OVERNIGHT INTO THURSDAY MORNING. THE SNOW WILL BE HEAVY AT TIMES FROM MIDNIGHT TONIGHT THROUGH THURSDAY...AND THEN GRADUALLY DIMINISH THURSDAY NIGHT. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 10 TO 20 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 20 TO 40 MPH WITH GUSTS TO 60 MPH ABOVE TIMBERLINE WILL BECOME WESTERLY ON THURSDAY AND SLOWLY DECREASE. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE NEAR BLIZZARD CONDITIONS AND EXTENSIVE TRAVEL DIFFICULTIES OVER RABBIT EARS PASS. CHAIN LAWS MAY BE NEEDED. * OTHER IMPACTS...OUTDOOR ACTIVITIES WILL BE HAZARDOUS WITH POSSIBLE WHITEOUT CONDITIONS ESPECIALLY IN OPEN AREAS. WIND CHILL READINGS WILL DROP BELOW ZERO. 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. && $$ COZ033-034-170000- /O.CON.KBOU.WW.Y.0010.110217T0700Z-110218T0700Z/ 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 842 AM MST WED FEB 16 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT. * TIMING...SNOW WILL GRADUALLY DEVELOP ACROSS THE FRONT RANGE MOUNTAINS AND SUMMIT COUNTY TONIGHT...BUT THEN BECOME HEAVIER THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES BEFORE DECREASING THURSDAY NIGHT. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 6 TO 12 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 20 TO 40 MPH WITH GUSTS TO 70 MPH OR MORE ABOVE TIMBERLINE WILL BECOME WESTERLY ON THURSDAY AND SLOWLY DECREASE. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS IN THE MOUNTAINS LATE TONIGHT THROUGH THURSDAY NIGHT. CHAIN LAWS WILL LIKELY BE NEEDED FOR COMMERCIAL VEHICLES ON THE APPROACHES TO THE EISENHOWER TUNNEL AND VAIL PASS ON INTERSTATE 70...AS WELL AS BERTHOUD PASS ON HIGHWAY 40 AND LOVELAND PASS ON HIGHWAY 6. * OTHER IMPACTS...VISIBILITIES WILL BE REDUCED IN OPEN AREAS... WITH SOME BLOWING AND DRIFTING SNOW EVEN IN THE MOUNTAIN VALLEYS. WIND CHILL READINGS WILL DROP BELOW ZERO. 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
228 WWUS45 KBOU 162126 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 226 PM MST WED FEB 16 2011 .STRONG WINDS AND SNOW WILL DEVELOP IN THE MOUNTAINS TONIGHT... WINDS WILL INCREASE ACROSS THE NORTHERN COLORADO MOUNTAINS THIS EVENING FOLLOWED BY SNOW LATER TONIGHT. THE COMBINATION OF FALLING SNOW AND STRONG WINDS GUSTING TO 75 MPH ABOVE TIMBERLINE WILL CREATE TRAVEL DIFFICULTIES MAINLY DUE TO POOR VISIBILITIES IN BLOWING SNOW. IF YOU ARE PLANNING TRAVEL INTO THE MOUNTAINS LATE TONIGHT THROUGH THURSDAY NIGHT...BE PREPARED FOR DANGEROUS AND SLOW TRAVEL CONDITIONS. VISIBILITIES WILL BE SEVERELY REDUCED IN AREAS OF HEAVIER SNOWFALL AND BLOWING SNOW...AND ROADS WILL BECOME SNOWPACKED AND ICY. COZ031-170530- /O.CON.KBOU.WS.W.0004.110217T0700Z-110218T0700Z/ 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 226 PM MST WED FEB 16 2011 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT. * TIMING...SNOW WILL DEVELOP THIS EVENING AND THEN INCREASE IN INTENSITY OVERNIGHT INTO THURSDAY MORNING. THE SNOW WILL BE HEAVY AT TIMES FROM MIDNIGHT TONIGHT THROUGH THURSDAY...AND THEN GRADUALLY DIMINISH THURSDAY NIGHT. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 10 TO 20 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 20 TO 30 MPH WITH GUSTS TO 50 MPH ABOVE TIMBERLINE WILL BECOME WESTERLY ON THURSDAY AND SLOWLY DECREASE. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE NEAR BLIZZARD CONDITIONS AND EXTENSIVE TRAVEL DIFFICULTIES OVER RABBIT EARS PASS. CHAIN LAWS MAY BE NEEDED. * OTHER IMPACTS...OUTDOOR ACTIVITIES WILL BE HAZARDOUS WITH POSSIBLE WHITEOUT CONDITIONS ESPECIALLY IN OPEN AREAS. WIND CHILL READINGS WILL DROP BELOW ZERO. 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. && $$ COZ030-032-170530- /O.EXA.KBOU.WW.Y.0010.110217T0700Z-110218T0700Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 226 PM MST WED FEB 16 2011 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT. * TIMING...SNOW WILL DEVELOP OVERNIGHT...AND MAY BE HEAVY AT TIMES THURSDAY MORNING. THE SNOW WILL DECREASE LATER IN THE DAY THURSDAY. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 4 TO 8 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 15 TO 30 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS LATE TONIGHT THROUGH THURSDAY NIGHT. VISIBILITIES WILL BE GREATLY REDUCED AT TIMES IN OPEN AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ033-034-170530- /O.CON.KBOU.WW.Y.0010.110217T0700Z-110218T0700Z/ 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 226 PM MST WED FEB 16 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST THURSDAY NIGHT. * TIMING...SNOW WILL DEVELOP ACROSS THE FRONT RANGE MOUNTAINS AND SUMMIT COUNTY TONIGHT...BUT THEN BECOME HEAVIER THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES BEFORE DECREASING THURSDAY NIGHT. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 6 TO 12 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 25 TO 50 MPH WITH GUSTS TO 75 MPH ABOVE TIMBERLINE WILL BECOME WESTERLY ON THURSDAY AND DECREASE IN THE AFTERNOON. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS IN THE MOUNTAINS LATE TONIGHT THROUGH THURSDAY NIGHT. CHAIN LAWS WILL LIKELY BE NEEDED FOR COMMERCIAL VEHICLES ON THE APPROACHES TO THE EISENHOWER TUNNEL AND VAIL PASS ON INTERSTATE 70...AS WELL AS BERTHOUD PASS ON HIGHWAY 40 AND LOVELAND PASS ON HIGHWAY 6. * OTHER IMPACTS...VISIBILITIES WILL BE REDUCED IN OPEN AREAS... WITH SOME BLOWING AND DRIFTING SNOW EVEN IN THE MOUNTAIN VALLEYS. WIND CHILL READINGS WILL DROP BELOW ZERO. 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
895 WWUS45 KBOU 170511 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1011 PM MST WED FEB 16 2011 .STRONG WINDS ALREADY OCCURRING IN THE HIGH COUNTRY...SNOWFALL NOT TOO FAR OFF... STRONG SOUTHWEST WINDS HAVE ALREADY DEVELOPED IN THE MOUNTAINS AND HIGH VALLEYS OF NORTH CENTRAL COLORADO LATE THIS WEDNESDAY EVENING. HOWEVER...SNOW HAS YET TO BEGIN IN THE HIGH COUNTRY BUT SHOULD DO SO BEFORE MIDNIGHT. THE COMBINATION OF FALLING SNOW AND STRONG WINDS GUSTING TO AS HIGH AS 75 MPH ABOVE TIMBERLINE WILL LIKELY CREATE DANGEROUS IF NOT IMPOSSIBLE DRIVING CONDITIONS MAINLY DUE TO EXTREMELY POOR VISIBILITIES CAUSED BY BLOWING SNOW. IF YOU ARE PLANNING TRAVEL INTO THE MOUNTAINS LATE TONIGHT THROUGH THURSDAY NIGHT...BE PREPARED FOR DANGEROUS AND VERY SLOW TRAVEL CONDITIONS. VISIBILITIES WILL BE SEVERELY REDUCED IN AREAS OF HEAVIER SNOWFALL AND BLOWING SNOW...AND ROADS WILL BECOME SNOW PACKED AND ICY. COZ031-171315- /O.CON.KBOU.WS.W.0004.110217T0700Z-110218T0700Z/ 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 1011 PM MST WED FEB 16 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST THURSDAY NIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST THURSDAY NIGHT. * TIMING...SNOW WILL DEVELOP BY MIDNIGHT AND INCREASE IN INTENSITY THE REST OF THE NIGHT INTO THURSDAY MORNING. THE SNOW WILL BE HEAVY AT TIMES FROM LATE TONIGHT THROUGH MUCH OF THE DAY THURSDAY...AND THEN GRADUALLY DIMINISH THURSDAY NIGHT. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 10 TO 20 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 20 TO 30 MPH WITH GUSTS TO 50 MPH ABOVE TIMBERLINE WILL BECOME WESTERLY ON THURSDAY AND SLOWLY DECREASE. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE NEAR BLIZZARD CONDITIONS AND EXTENSIVE TRAVEL DIFFICULTIES OVER RABBIT EARS PASS. CHAIN LAWS MAY BE NEEDED. * OTHER IMPACTS...OUTDOOR ACTIVITIES WILL BE HAZARDOUS WITH POSSIBLE WHITEOUT CONDITIONS ESPECIALLY IN OPEN AREAS. WIND CHILL READINGS WILL DROP BELOW ZERO. 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. && $$ COZ033-034-171315- /O.CON.KBOU.WW.Y.0010.110217T0700Z-110218T0700Z/ 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 1011 PM MST WED FEB 16 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST THURSDAY NIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST THURSDAY NIGHT. * TIMING...SNOW WILL DEVELOP IN THE MOUNTAINS OF SUMMIT...GRAND... JACKSON...PARK COUNTIES AS WELL AS IN THE FRONT RANGE MOUNTAINS BY MIDNIGHT AND BECOME HEAVIER LATE TONIGHT INTO THURSDAY MORNING. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 6 TO 12 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 25 TO 50 MPH WITH GUSTS TO 75 MPH ABOVE TIMBERLINE WILL BECOME WESTERLY ON THURSDAY AND DECREASE IN THE AFTERNOON. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS IN THE MOUNTAINS LATE TONIGHT THROUGH THURSDAY NIGHT. CHAIN LAWS WILL LIKELY BE NEEDED FOR COMMERCIAL VEHICLES ON THE APPROACHES TO THE EISENHOWER TUNNEL AND VAIL PASS ON INTERSTATE 70...AS WELL AS BERTHOUD PASS ON HIGHWAY 40 AND LOVELAND PASS ON HIGHWAY 6. * OTHER IMPACTS...VISIBILITIES WILL BE REDUCED IN OPEN AREAS... WITH SOME BLOWING AND DRIFTING SNOW EVEN IN THE MOUNTAIN VALLEYS. WIND CHILL READINGS WILL DROP BELOW ZERO. 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. && $$ COZ030-032-171315- /O.CON.KBOU.WW.Y.0010.110217T0700Z-110218T0700Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 1011 PM MST WED FEB 16 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST THURSDAY NIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST THURSDAY NIGHT. * TIMING...SNOW WILL DEVELOP AFTER MIDNIGHT TONIGHT...AND MAY BE HEAVY AT TIMES TOWARDS THURSDAY MORNING. SNOWFALL IS EXPECTED TO DECREASE LATE IN THE DAY THURSDAY. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 4 TO 7 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 15 TO 30 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS LATE TONIGHT THROUGH THURSDAY NIGHT. VISIBILITIES WILL BE GREATLY REDUCED AT TIMES IN OPEN AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ BAKER
731 WWUS45 KBOU 171308 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 608 AM MST THU FEB 17 2011 ...WINDY AND SNOWY CONDITIONS SPREADING ACROSS THE MOUNTAINS... LIGHT TO MODERATE SNOWFALL DEVELOPED OVERNIGHT FROM THE I-70 CORRIDOR NORTH TO THE WYOMING BORDER. SNOWFALL ACCUMULATIONS HAVE BEEN LESS THAN A COUPLE INCHES EARLY THIS MORNING. ALONG WITH THE SNOWFALL...SOUTHWEST WINDS HAVE ALSO CONTINUED. ELEVATIONS ABOVE 12000 FEET HAVE HAD WIND SPEEDS OF 30 TO 45 MPH WITH SOME GUSTS UP TO 60 MPH. AS SNOW AND WIND CONTINUE TODAY...DRIVING CONDITIONS MAY BE HAZARDOUS AT TIMES DUE TO POOR VISIBILITIES IN BLOWING SNOW. COZ031-172315- /O.CON.KBOU.WS.W.0004.000000T0000Z-110218T0700Z/ 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 608 AM MST THU FEB 17 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * TIMING...SNOW WILL CONTINUE FALLING INTO THIS AFTERNOON. SNOW MAY BE HEAVY AT TIMES. SNOW WILL BEGIN DECREASING TO SCATTERED SNOW SHOWERS LATE THIS AFTERNOON AND EVENING. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 8 TO 16 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 20 TO 30 MPH WITH GUSTS TO 50 MPH ABOVE TIMBERLINE THIS MORNING WILL BECOME WESTERLY THIS AFTERNOON AND SLOWLY DECREASE. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE NEAR BLIZZARD CONDITIONS AND TRAVEL DIFFICULTIES OVER RABBIT EARS PASS. CHAIN LAWS MAY BE NEEDED. * OTHER IMPACTS...OUTDOOR ACTIVITIES WILL BE HAZARDOUS WITH POSSIBLE WHITEOUT CONDITIONS ESPECIALLY IN OPEN AREAS. WIND CHILL READINGS WILL DROP BELOW ZERO. 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. && $$ COZ033-034-172315- /O.CON.KBOU.WW.Y.0010.000000T0000Z-110218T0700Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 608 AM MST THU FEB 17 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * TIMING...SNOW WILL CONTINUE IN THE MOUNTAINS OF SUMMIT... GRAND...JACKSON...PARK COUNTIES TODAY. SNOW IS EXPECTED TO DECREASE TO SCATTERED SHOWERS THIS EVENING. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 5 TO 10 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 25 TO 40 MPH WITH GUSTS TO 60 MPH ABOVE TIMBERLINE THIS MORNING WILL BECOME WESTERLY AND BEGIN DECREASING IN THE AFTERNOON. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS IN THE MOUNTAINS TODAY. CHAIN LAWS MAY BE NEEDED FOR COMMERCIAL VEHICLES ON THE APPROACHES TO THE EISENHOWER TUNNEL AND VAIL PASS ON INTERSTATE 70...AS WELL AS BERTHOUD PASS AND LOVELAND PASS. * OTHER IMPACTS...VISIBILITIES WILL BE REDUCED IN OPEN AREAS... WITH SOME BLOWING AND DRIFTING SNOW EVEN IN THE MOUNTAIN VALLEYS. WIND CHILL READINGS WILL DROP BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ030-032-172315- /O.CON.KBOU.WW.Y.0010.000000T0000Z-110218T0700Z/ 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 608 AM MST THU FEB 17 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * TIMING...SNOW WILL CONTINUE THROUGH TODAY AND DECREASE TO SCATTERED SNOW SHOWERS BY THIS EVENING. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 4 TO 8 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 15 TO 30 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS THROUGH THIS EVENING. VISIBILITIES WILL BE GREATLY REDUCED AT TIMES IN OPEN AREAS. 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. && $$
501 WWUS45 KBOU 171856 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1156 AM MST THU FEB 17 2011 ...SNOW DECREASING NORTH BUT CONTINUING ALONG INTERSTATE 70... A WINTER WEATHER SYSTEM WILL CONTINUE TO MOVE ACROSS NORTHERN COLORADO TODAY. AT MIDDAY THE HEAVIEST SNOW WAS ALONG THE INTERSTATE 70 CORRIDOR WHILE AREAS FURTHER NORTH WERE SEEING SOME DECREASE IN THE SNOW. SNOWFALL AMOUNTS SO FAR GENERALLY RANGE FROM 2 TO 7 INCHES. ALONG WITH THE SNOWFALL...WEST TO SOUTHWEST WINDS AT 20 TO 30 MPH WITH GUSTS TO 45 MPH WILL CONTINUE OVER THE HIGHER MOUNTAINS. DRIVING CONDITIONS SHOULD SEE SOME IMPROVEMENT IN THE NORTHERN MOUNTAINS THIS AFTERNOON...BUT WILL REMAIN POOR IN THE INTERSTATE 70 CORRIDOR THROUGH THE AFTERNOON. COZ030-172000- /O.CAN.KBOU.WW.Y.0010.000000T0000Z-110218T0700Z/ JACKSON COUNTY BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN 1156 AM MST THU FEB 17 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. SNOW HAS DECREASED TO SHOWERS AND ANY ADDITIONAL ACCUMULATION TODAY WILL BE LIGHT. $$ COZ031-180300- /O.CON.KBOU.WS.W.0004.000000T0000Z-110218T0700Z/ 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 1156 AM MST THU FEB 17 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * TIMING...SNOW WILL CONTINUE THIS AFTERNOON...BUT WILL DECREASE TO SCATTERED SNOW SHOWERS LATE THIS AFTERNOON AND EVENING. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 8 TO 14 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 15 TO 25 MPH WITH GUSTS TO 35 MPH ABOVE TIMBERLINE THIS MORNING WILL CONTINUE TO SLOWLY DECREASE. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE OCCASIONAL LIMITED VISIBILITY AND POOR ROAD CONDITIONS. CHAIN LAWS MAY BE NEEDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... TRAVELERS SHOULD CHECK THE LATEST ROAD CONDITIONS AND BE PREPARED FOR ICY AND SNOWPACKED ROADS AND AREAS OF POOR VISIBILITY. && $$ COZ032-180000- /O.EXT.KBOU.WW.Y.0010.000000T0000Z-110218T0000Z/ GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 1156 AM MST THU FEB 17 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * TIMING...SNOW WILL CONTINUE THROUGH TODAY AND DECREASE TO SCATTERED SNOW SHOWERS BY THIS EVENING. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 4 TO 8 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 15 TO 25 MPH WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS THROUGH THIS EVENING. VISIBILITIES WILL BE REDUCED AT TIMES IN OPEN AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ033-034-180300- /O.CON.KBOU.WW.Y.0010.000000T0000Z-110218T0700Z/ 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 1156 AM MST THU FEB 17 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * TIMING...SNOW WILL CONTINUE IN THE MOUNTAINS OF SUMMIT... GRAND...JACKSON...PARK COUNTIES TODAY. SNOW IS EXPECTED TO DECREASE TO SCATTERED SHOWERS THIS EVENING. * ACCUMULATION/WIND...STORM TOTAL SNOWFALL AMOUNTS OF 5 TO 10 INCHES ARE EXPECTED. SOUTHWEST WINDS AT 20 TO 30 MPH WITH GUSTS TO 45 MPH ABOVE TIMBERLINE THIS MORNING WILL GRADUALLY DECREASE THIS AFTERNOON. * MAIN IMPACT...SNOW AND BLOWING SNOW WILL CAUSE HAZARDOUS TRAVEL CONDITIONS IN THE MOUNTAINS TODAY. CHAIN LAWS MAY BE NEEDED FOR COMMERCIAL VEHICLES ON THE APPROACHES TO THE EISENHOWER TUNNEL AND VAIL PASS ON INTERSTATE 70...AS WELL AS BERTHOUD PASS AND LOVELAND PASS. * OTHER IMPACTS...VISIBILITIES WILL BE REDUCED IN OPEN AREAS... WITH SOME BLOWING AND DRIFTING SNOW EVEN IN THE MOUNTAIN VALLEYS. WIND CHILL READINGS WILL DROP BELOW ZERO. 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. && $$ GIMMESTAD
607 WWUS45 KBOU 172245 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 345 PM MST THU FEB 17 2011 COZ031-172345- /O.CAN.KBOU.WS.W.0004.000000T0000Z-110218T0700Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 345 PM MST THU FEB 17 2011 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER STORM WARNING. SCATTERED LIGHT SNOW SHOWERS WILL GRADUALLY DIMINISH THIS EVENING. ADDITIONAL ACCUMULATIONS WILL BE AN INCH OR LESS. $$ COZ033-034-172345- /O.CAN.KBOU.WW.Y.0010.000000T0000Z-110218T0700Z/ 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 345 PM MST THU FEB 17 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. SCATTERED LIGHT SNOW SHOWERS WILL GRADUALLY DIMINISH THIS EVENING...MAINLY IN SUMMIT COUNTY. ADDITIONAL ACCUMULATIONS WILL BE AN INCH OR LESS. $$ COZ032-172345- /O.CAN.KBOU.WW.Y.0010.000000T0000Z-110218T0000Z/ GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 345 PM MST THU FEB 17 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. SCATTERED LIGHT SNOW SHOWERS WILL GRADUALLY DIMINISH THIS EVENING. ADDITIONAL ACCUMULATIONS WILL BE AN INCH OR LESS. $$ GIMMESTAD
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 16, 3:03 AM MST | Winter Weather Advisory | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 37 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.