Alert archive / Colorado / Winter Storm Warnings in 2015
Winter Storm Warning 5, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Feb 25, 2015, 4:18 AM MST for 8 counties in Colorado. It took effect at Feb 25, 2015, 1:00 PM MST. It was in force for 15 hr. 57 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 25, 2015, 4:18 AM MST (11:18 UTC)
- In effect from
- Feb 25, 2015, 1:00 PM MST
- Expired
- Feb 26, 2015, 4:14 AM MST
- In force
- 15 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Douglas County, CO, Gilpin County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO
The radar
The Denver radar (KFTG), 70 km from the middle of the area, began a volume at 11:20 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 25, 3:52 PM MST | SNOW 3 | N Longmont, CO | 1.8 INCHES THE PAST HOUR |
| Feb 25, 4:00 PM MST | SNOW 2.4 | 1 Sw Westminster, CO | |
| Feb 25, 4:15 PM MST | SNOW 3.3 | Broomfield, CO | PAST 2 HOURS |
| Feb 25, 4:25 PM MST | SNOW 2.1 | 1 Nw Superior, CO | |
| Feb 25, 4:44 PM MST | SNOW 4 | 4 Ene Nederland, CO | |
| Feb 25, 4:45 PM MST | SNOW 1.3 | 3 N Conifer, CO | |
| Feb 25, 4:45 PM MST | SNOW 2.6 | Genesee, CO | |
| Feb 25, 4:45 PM MST | SNOW 4 | Genesee, CO | |
| Feb 25, 5:00 PM MST | SNOW 1.5 | 1 Sw Evergreen, CO | |
| Feb 25, 5:00 PM MST | SNOW 4 | 1 Ssw Lafayette, CO | |
| Feb 25, 5:15 PM MST | SNOW 4.5 | 2 Ssw Boulder, CO | DAVID SKAGGS RESEARCH CENTER |
| Feb 25, 5:30 PM MST | SNOW 3.9 | 1 S Superior, CO | 1.8 INCHES FROM 410 TO 510 PM |
| Feb 25, 5:40 PM MST | SNOW 2.6 | 3 N Conifer, CO | |
| Feb 25, 5:45 PM MST | SNOW 3.3 | Nw Longmont, CO | |
| Feb 25, 5:50 PM MST | SNOW 3 | Nw Longmont, CO | |
| Feb 25, 6:00 PM MST | SNOW 5 | 4 S Golden, CO | |
| Feb 25, 6:00 PM MST | SNOW 5.1 | 3 S Boulder, CO | |
| Feb 25, 6:00 PM MST | HEAVY SNOW 7.2 | 1 Wnw Eldorado Springs, CO | |
| Feb 25, 6:15 PM MST | SNOW 4.9 | Broomfield, CO | PAST 4 HOURS |
| Feb 25, 6:30 PM MST | SNOW 5.1 | 3 W Arvada, CO | |
| Feb 25, 6:40 PM MST | SNOW 5.6 | Genesee, CO | |
| Feb 25, 6:44 PM MST | SNOW 4.5 | 1 Nnw Louisville, CO | |
| Feb 25, 7:00 PM MST | SNOW 3.5 | 1 Nw Niwot, CO | |
| Feb 25, 7:00 PM MST | SNOW 4.3 | 4 Wsw Berthoud, CO | |
| Feb 25, 7:00 PM MST | SNOW 5.5 | 5 W Golden, CO | |
| Feb 25, 7:10 PM MST | SNOW 7.1 | Genesee, CO | 4.5 INCHES PAST 3 HOURS |
| Feb 25, 7:20 PM MST | HEAVY SNOW 6.2 | 2 Ssw Boulder, CO | DAVID SKAGGS RESEARCH CENTER |
| Feb 25, 7:25 PM MST | HEAVY SNOW 6.1 | Broomfield, CO | PAST 5 HOURS |
| Feb 25, 8:00 PM MST | SNOW 5 | 4 Sse Brookvale, CO | |
| Feb 25, 8:00 PM MST | SNOW 5.1 | 5 E Boulder, CO | |
| Feb 25, 8:00 PM MST | SNOW 5.5 | 1 Sw Westminster, CO | |
| Feb 25, 8:00 PM MST | HEAVY SNOW 8.5 | Genesee, CO | 6.0 INCHES PAST 4 HOURS |
| Feb 25, 8:15 PM MST | SNOW 4.5 | 5 W Evergreen, CO | |
| Feb 25, 8:25 PM MST | SNOW 4 | 8 N Black Hawk, CO | PAST 4 HOURS |
| Feb 25, 8:25 PM MST | HEAVY SNOW 7.1 | 3 S Boulder, CO | |
| Feb 25, 8:25 PM MST | HEAVY SNOW 8.5 | 4 Ene Nederland, CO | |
| Feb 25, 9:00 PM MST | HEAVY SNOW 6.5 | 1 Sw Erie, CO | |
| Feb 25, 9:15 PM MST | SNOW 5 | 3 W Conifer, CO | |
| Feb 25, 9:30 PM MST | HEAVY SNOW 6 | 2 S Erie, CO | |
| Feb 25, 9:30 PM MST | HEAVY SNOW 7.2 | 2 W Boulder, CO | |
| Feb 25, 9:30 PM MST | HEAVY SNOW 7.7 | 2 Ssw Boulder, CO | DAVID SKAGGS RESEARCH CENTER |
| Feb 25, 9:35 PM MST | HEAVY SNOW 10.8 | 5 Ne Ward, CO | |
| Feb 25, 9:45 PM MST | HEAVY SNOW 7 | 4 Ene Conifer, CO | |
| Feb 25, 10:00 PM MST | HEAVY SNOW 9.7 | 13 Nw Golden, CO | 4 INCHES IN THE PAST TWO HOURS |
| Feb 25, 10:10 PM MST | SNOW 5.8 | 1 Nnw Louisville, CO | |
| Feb 25, 10:15 PM MST | HEAVY SNOW 7.7 | 1 Ne Broomfield, CO | |
| Feb 25, 10:30 PM MST | HEAVY SNOW 12 | 4 Sw Eldorado Springs, CO | |
| Feb 25, 10:30 PM MST | HEAVY SNOW 12.5 | 4 Sse Pinecliffe, CO | |
| Feb 25, 10:50 PM MST | HEAVY SNOW 8 | N Ken Caryl, CO | |
| Feb 25, 10:50 PM MST | HEAVY SNOW 8.7 | 2 Ssw Boulder, CO | DAVID SKAGGS RESEARCH CENTER |
| Feb 25, 11:45 PM MST | SNOW 3.2 | Ese Castle Pines, CO | 3 INCHES OF SNOW IN PAST 7 HOURS. |
| Feb 25, 11:45 PM MST | HEAVY SNOW 7.9 | 1 Ssw Lafayette, CO | |
| Feb 25, 11:50 PM MST | HEAVY SNOW 7.6 | 1 Nw Superior, CO | 5.5 INCHES OF SNOW IN PAST 8 HOURS. TOTAL SNOW DEPTH 13 INCHES. |
| Feb 26, 12:05 AM MST | SNOW 6.6 | 3 N Black Hawk, CO | |
| Feb 26, 12:25 AM MST | SNOW 6.9 | 3 N Conifer, CO | |
| Feb 26, 3:05 AM MST | HEAVY SNOW 9.4 | 1 Nnw Louisville, CO | |
| Feb 26, 3:30 AM MST | HEAVY SNOW 11 | 2 Ssw Boulder, CO | DAVID SKAGGS RESEARCH CENTER |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDEN), launched 00:00Z, 11.3 hours before the alert went out and 183 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
- 2327 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
435 WWUS45 KBOU 251118 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 418 AM MST WED FEB 25 2015 ...HEAVY SNOW POSSIBLE IN AND NEAR THE FOOTHILLS LATE THIS AFTERNOON AND EVENING... .THE NEXT STORM SYSTEM WILL MOVE ACROSS NORTHERN COLORADO THIS AFTERNOON AND EVENING. SNOW IS EXPECTED TO QUICKLY DEVELOP BEHIND THE PASSAGE OF A COLD FRONT THIS AFTERNOON. HEAVY SNOW WITH SNOWFALL RATES OF ONE TO TWO INCHES PER HOUR WILL LIKELY OCCUR IN AND RIGHT NEXT TO THE FRONT RANGE FOOTHILLS LATE THIS AFTERNOON AND EVENING. ONCE SNOW BEGINS...A RAPID DETERIORATION OF TRAVEL CONDITIONS IS EXPECTED WITH DRY ROADS QUICKLY BECOME SNOWPACKED AND ICY...AND VISIBILITIES WILL BE POOR IN AREAS OF HEAVY SNOW. COZ035-036-251930- /O.UPG.KBOU.WS.A.0002.150225T2100Z-150226T1800Z/ /O.NEW.KBOU.WS.W.0005.150225T2100Z-150226T1300Z/ 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 418 AM MST WED FEB 25 2015 ...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 6 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 6 AM MST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW WILL DEVELOP ACROSS THE FOOTHILLS BY MID TO LATE AFTERNOON AND WILL BE HEAVY AT TIMES THROUGH THIS EVENING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY OVERNIGHT. SOME LIGHT SNOW WILL LIKELY LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...6 TO 12 INCHES BY LATE TONIGHT. HEAVIEST TOTALS IN THE FOOTHILLS OF BOULDER AND JEFFERSON COUNTIES. * WIND/VISIBILITY...NORTHEAST WINDS AT 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN THE HEAVIER SNOW SHOWERS. * IMPACTS...TRAVEL WILL QUICKLY BECOME DIFFICULT THIS AFTERNOON DUE TO SNOW COVERED ROADS AND POOR VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ033-034-251930- /O.NEW.KBOU.WW.Y.0013.150225T2100Z-150226T1300Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 418 AM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 6 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 6 AM MST THURSDAY. * TIMING...LIGHT SNOW IN THE MOUNTAINS WILL DECREASE LATER THIS MORNING...ONLY TO INCREASE AGAIN THIS AFTERNOON AND POSSIBLY BECOME HEAVY AT TIMES ESPECIALLY IN THE FRONT RANGE MOUNTAINS. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY LATE TONIGHT...BUT SOME LIGHT SNOW WILL LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...3 TO 10 INCHES...HEAVIEST IN THE FRONT RANGE MOUNTAINS FROM ROCKY MOUNTAIN NATIONAL PARK THROUGH THE INDIAN PEAKS WILDERNESS. * WIND/VISIBILITY...NORTHWEST 20 TO 30 MPH DECREASING TO 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN HEAVIER SNOW SHOWERS AND AREAS OF BLOWING SNOW. * IMPACTS...SNOW COVERED ROADS AND POOR VISIBILITIES AT TIMES WILL LEAD TO HAZARDOUS AND SLOW TRAVEL CONDITIONS...INCLUDING I-70 AND THE APPROACHES TO THE EISENHOWER TUNNEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ039>041-251930- /O.NEW.KBOU.WW.Y.0013.150225T2200Z-150226T1300Z/ 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- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR 418 AM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM MST THURSDAY. * TIMING...SNOW WILL RAPIDLY DEVELOP ACROSS THE DENVER METRO AREA AND PALMER DIVIDE BY LATE AFTERNOON. THE SNOW MAY BE HEAVY AT TIMES LATE THIS AFTERNOON AND EVENING. SNOW INTENSITY IS EXPECTED TO DECREASE OVERNIGHT. * SNOW ACCUMULATIONS...3 TO 8 INCHES WITH POTENTIAL FOR EVEN MORE VARIATION. AT THIS TIME...THE HEAVIEST TOTALS ARE MOST LIKELY TO OCCUR IN THE WESTERN SUBURBS. * WIND/VISIBILITY...NORTHEAST WINDS AT 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN THE HEAVIER SNOW SHOWERS. * IMPACTS...TRAVEL CONDITIONS MAY CHANGE VERY RAPIDLY THIS AFTERNOON WITH THE ONSET OF HEAVY SNOW SHOWERS. THEY MAY ALSO VARY TREMENDOUSLY FROM ONE POINT TO ANOTHER...SO PLAN AHEAD FOR A SLOW AND HAZARDOUS LATE AFTERNOON AND EVENING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ BARJENBRUCH
6 follow-up statements
291 WWUS45 KBOU 251841 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1141 AM MST WED FEB 25 2015 ...HEAVY SNOW POSSIBLE IN AND NEAR THE FOOTHILLS LATE THIS AFTERNOON AND EVENING... .THE NEXT STORM SYSTEM WILL MOVE ACROSS NORTHERN COLORADO THIS AFTERNOON AND EVENING. SNOW IS EXPECTED TO DEVELOP FOLLOWING THE PASSAGE OF A COLD FRONT THAT MOVED INTO DENVER EARLIER IN THE DAY. HEAVY SNOW WITH SNOWFALL RATES OF ONE TO TWO INCHES PER HOUR WILL LIKELY OCCUR IN AND RIGHT NEXT TO THE FRONT RANGE FOOTHILLS LATE THIS AFTERNOON AND EVENING. ONCE SNOW BEGINS...A RAPID DETERIORATION OF TRAVEL CONDITIONS IS EXPECTED WITH DRY ROADS QUICKLY BECOME SNOWPACKED AND ICY...AND VISIBILITIES WILL BE POOR IN AREAS OF HEAVY SNOW. COZ035-036-252300- /O.CON.KBOU.WS.W.0005.150225T2100Z-150226T1300Z/ 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 1141 AM MST WED FEB 25 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...SNOW WILL DEVELOP ACROSS THE FOOTHILLS BY MID TO LATE AFTERNOON AND WILL BE HEAVY AT TIMES THROUGH THIS EVENING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY OVERNIGHT. SOME LIGHT SNOW WILL LIKELY LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...6 TO 12 INCHES BY LATE TONIGHT. HEAVIEST TOTALS IN THE FOOTHILLS OF BOULDER AND JEFFERSON COUNTIES. * WIND/VISIBILITY...NORTHEAST WINDS AT 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN THE HEAVIER SNOW SHOWERS. * IMPACTS...TRAVEL WILL QUICKLY BECOME DIFFICULT THIS AFTERNOON DUE TO SNOW COVERED ROADS AND POOR VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ033-034-252300- /O.CON.KBOU.WW.Y.0013.150225T2100Z-150226T1300Z/ 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 1141 AM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...LIGHT SNOW WILL INCREASE THIS AFTERNOON AND POSSIBLY BECOME HEAVY AT TIMES ESPECIALLY IN THE FRONT RANGE MOUNTAINS. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY LATE TONIGHT... BUT SOME LIGHT SNOW WILL LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...3 TO 10 INCHES...HEAVIEST IN THE FRONT RANGE MOUNTAINS FROM ROCKY MOUNTAIN NATIONAL PARK THROUGH THE INDIAN PEAKS WILDERNESS. * WIND/VISIBILITY...NORTHWEST 20 TO 30 MPH DECREASING TO 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN HEAVIER SNOW SHOWERS AND AREAS OF BLOWING SNOW. * IMPACTS...SNOW COVERED ROADS AND POOR VISIBILITIES AT TIMES WILL LEAD TO HAZARDOUS AND SLOW TRAVEL CONDITIONS...INCLUDING I- 70 AND THE APPROACHES TO THE EISENHOWER TUNNEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ039>041-252300- /O.CON.KBOU.WW.Y.0013.150225T2200Z-150226T1300Z/ BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR 1141 AM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM MST THURSDAY... * TIMING...SNOW WILL RAPIDLY DEVELOP ACROSS THE DENVER METRO AREA AND PALMER DIVIDE BY LATE AFTERNOON. THE SNOW MAY BE HEAVY AT TIMES LATE THIS AFTERNOON AND EVENING. SNOW INTENSITY IS EXPECTED TO DECREASE OVERNIGHT. * SNOW ACCUMULATIONS...3 TO 8 INCHES WITH POTENTIAL FOR EVEN MORE VARIATION. AT THIS TIME...THE HEAVIEST TOTALS ARE MOST LIKELY TO OCCUR IN THE WESTERN AND SOUTHERN SUBURBS. * WIND/VISIBILITY...NORTHEAST WINDS AT 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN THE HEAVIER SNOW SHOWERS. * IMPACTS...TRAVEL CONDITIONS MAY CHANGE VERY RAPIDLY THIS AFTERNOON WITH THE ONSET OF HEAVY SNOW SHOWERS. THEY MAY ALSO VARY TREMENDOUSLY FROM ONE POINT TO ANOTHER...SO PLAN AHEAD FOR A SLOW AND HAZARDOUS LATE AFTERNOON AND EVENING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
185 WWUS45 KBOU 251959 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1259 PM MST WED FEB 25 2015 ...HEAVY SNOW POSSIBLE IN AND NEAR THE FOOTHILLS THIS AFTERNOON AND EVENING... .THE NEXT STORM SYSTEM WILL MOVE ACROSS NORTHERN COLORADO THIS AFTERNOON AND EVENING. SNOW WILL CONTINUE TO INCREASE IN COVERAGE AND INTENSITY ACROSS THE FRONT RANGE. HEAVY SNOW WITH SNOWFALL RATES OF ONE TO TWO INCHES PER HOUR WILL LIKELY OCCUR IN AND RIGHT NEXT TO THE FRONT RANGE FOOTHILLS...WITH A RAPID DETERIORATION OF TRAVEL CONDITIONS EXPECTED AS DRY ROADS QUICKLY BECOME SNOWPACKED AND ICY...AND VISIBILITIES WILL BE POOR IN AREAS OF HEAVY SNOW. SLOW DOWN AND ALLOW FOR EXTRA TIME FOR THE EVENING COMMUTE. COZ035-036-260400- /O.EXT.KBOU.WS.W.0005.150225T2000Z-150226T1300Z/ 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 1259 PM MST WED FEB 25 2015 ...WINTER STORM WARNING IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...SNOW WILL BE HEAVY AT TIMES THROUGH THIS EVENING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY OVERNIGHT. SOME LIGHT SNOW WILL LIKELY LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...6 TO 12 INCHES BY THURSDAY MORNING. HEAVIEST TOTALS IN THE FOOTHILLS OF BOULDER AND JEFFERSON COUNTIES. * WIND/VISIBILITY...NORTHEAST WINDS AT 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN THE HEAVIER SNOW SHOWERS. * IMPACTS...TRAVEL WILL QUICKLY BECOME DIFFICULT THIS AFTERNOON DUE TO SNOW COVERED ROADS AND POOR VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ033-034-260400- /O.EXT.KBOU.WW.Y.0013.150225T2000Z-150226T1300Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 1259 PM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...LIGHT SNOW WILL INCREASE THIS AFTERNOON AND POSSIBLY BECOME HEAVY AT TIMES ESPECIALLY IN THE FRONT RANGE MOUNTAINS. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY LATE TONIGHT... BUT SOME LIGHT SNOW WILL LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...4 TO 10 INCHES...HEAVIEST IN THE FRONT RANGE MOUNTAINS FROM ROCKY MOUNTAIN NATIONAL PARK THROUGH THE INDIAN PEAKS WILDERNESS. * WIND/VISIBILITY...NORTHWEST 20 TO 30 MPH DECREASING TO 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN HEAVIER SNOW SHOWERS AND AREAS OF BLOWING SNOW. * IMPACTS...SNOW COVERED ROADS AND POOR VISIBILITIES AT TIMES WILL LEAD TO HAZARDOUS AND SLOW TRAVEL CONDITIONS...INCLUDING I- 70 AND THE APPROACHES TO THE EISENHOWER TUNNEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ039>041-260400- /O.EXT.KBOU.WW.Y.0013.150225T2000Z-150226T1300Z/ 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- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR 1259 PM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...SNOW WILL RAPIDLY DEVELOP ACROSS THE DENVER METRO AREA AND PALMER DIVIDE THIS AFTERNOON. THE SNOW MAY BE HEAVY AT TIMES LATE THIS AFTERNOON AND EVENING. SNOW INTENSITY IS EXPECTED TO DECREASE OVERNIGHT. * SNOW ACCUMULATIONS...3 TO 8 INCHES WITH POTENTIAL FOR EVEN MORE VARIATION. AT THIS TIME...THE HEAVIEST TOTALS ARE MOST LIKELY TO OCCUR IN THE WESTERN AND SOUTHERN SUBURBS. * WIND/VISIBILITY...NORTHEAST WINDS AT 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN THE HEAVIER SNOW SHOWERS. * IMPACTS...TRAVEL CONDITIONS MAY CHANGE VERY RAPIDLY THIS AFTERNOON WITH THE ONSET OF HEAVY SNOW SHOWERS. THEY MAY ALSO VARY TREMENDOUSLY FROM ONE POINT TO ANOTHER...SO PLAN AHEAD FOR A SLOW AND HAZARDOUS LATE AFTERNOON AND EVENING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
082 WWUS45 KBOU 252238 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 338 PM MST WED FEB 25 2015 ...HEAVY SNOW IN AND NEAR THE FOOTHILLS THIS AFTERNOON AND EVENING... .THE NEXT STORM SYSTEM WILL MOVE ACROSS NORTHERN COLORADO THIS AFTERNOON AND EVENING. SNOW WILL CONTINUE TO INCREASE IN COVERAGE AND INTENSITY ACROSS THE FRONT RANGE. HEAVY SNOW WITH SNOWFALL RATES OF ONE TO TWO INCHES PER HOUR WILL LIKELY OCCUR IN AND RIGHT NEXT TO THE FRONT RANGE FOOTHILLS...WITH A RAPID DETERIORATION OF TRAVEL CONDITIONS EXPECTED AS DRY ROADS QUICKLY BECOME SNOWPACKED AND ICY...AND VISIBILITIES WILL BE POOR IN AREAS OF HEAVY SNOW. SLOW DOWN AND ALLOW FOR EXTRA TIME FOR THE EVENING COMMUTE. COZ035-036-260645- /O.CON.KBOU.WS.W.0005.000000T0000Z-150226T1300Z/ 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 338 PM MST WED FEB 25 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...SNOW WILL BE HEAVY AT TIMES THROUGH THIS EVENING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY OVERNIGHT. SOME LIGHT SNOW WILL LIKELY LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...6 TO 12 INCHES BY THURSDAY MORNING. HEAVIEST TOTALS IN THE FOOTHILLS OF BOULDER AND JEFFERSON COUNTIES. * WIND/VISIBILITY...NORTHEAST WINDS AT 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN THE HEAVIER SNOW SHOWERS. * IMPACTS...TRAVEL WILL QUICKLY BECOME DIFFICULT THIS AFTERNOON DUE TO SNOW COVERED ROADS AND POOR VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ043-260645- /O.EXA.KBOU.WW.Y.0013.000000T0000Z-150226T1300Z/ CENTRAL AND SOUTH WELD COUNTY- INCLUDING THE CITIES OF...EATON...FORT LUPTON...GREELEY...ROGGEN 338 PM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 6 AM MST THURSDAY. * TIMING...MODERATE TO HEAVY SNOW WILL CONTINUE THROUGH THIS EVENING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY LATE TONIGHT... BUT SOME LIGHT SNOW WILL LINGER INTO THURSDAY. LIGHTER INTENSITIES NORTH AND EAST OF GREELEY. * SNOW ACCUMULATIONS...3 TO 6 INCHES...HEAVIEST OVER SOUTHWEST WELD COUNTY. * WIND/VISIBILITY...NORTHEAST 15 TO 30 MPH DECREASING TO 10 TO 20 MPH OVERNIGHT. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN HEAVIER SNOW SHOWERS AND AREAS OF BLOWING SNOW. * IMPACTS...SNOW COVERED ROADS AND POOR VISIBILITIES AT TIMES WILL LEAD TO HAZARDOUS AND SLOW TRAVEL CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ033-034-260645- /O.CON.KBOU.WW.Y.0013.000000T0000Z-150226T1300Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 338 PM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE THROUGH THIS AFTERNOON AND POSSIBLY BECOME HEAVY AT TIMES ESPECIALLY IN THE FRONT RANGE MOUNTAINS. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY LATE TONIGHT... BUT SOME LIGHT SNOW WILL LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...4 TO 10 INCHES...HEAVIEST IN THE FRONT RANGE MOUNTAINS FROM ROCKY MOUNTAIN NATIONAL PARK THROUGH THE INDIAN PEAKS WILDERNESS. * WIND/VISIBILITY...NORTHWEST 20 TO 30 MPH DECREASING TO 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN HEAVIER SNOW SHOWERS AND AREAS OF BLOWING SNOW. * IMPACTS...SNOW COVERED ROADS AND POOR VISIBILITIES AT TIMES WILL LEAD TO HAZARDOUS AND SLOW TRAVEL CONDITIONS...INCLUDING I- 70 AND THE APPROACHES TO THE EISENHOWER TUNNEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ039>041-260645- /O.CON.KBOU.WW.Y.0013.000000T0000Z-150226T1300Z/ 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- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR 338 PM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...SNOW WILL CONTINUE THIS AFTERNOON AND TONIGHT. SNOW WILL BE HEAVY AT TIMES LATE THIS AFTERNOON AND EVENING. SNOW INTENSITY IS EXPECTED TO DECREASE OVERNIGHT. * SNOW ACCUMULATIONS...3 TO 8 INCHES WITH POTENTIAL FOR EVEN MORE VARIATION. AT THIS TIME...THE HEAVIEST TOTALS ARE MOST LIKELY TO OCCUR IN THE WESTERN AND SOUTHERN SUBURBS. * WIND/VISIBILITY...NORTHEAST WINDS AT 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN THE HEAVIER SNOW SHOWERS. * IMPACTS...TRAVEL CONDITIONS MAY CHANGE VERY RAPIDLY THIS AFTERNOON WITH THE ONSET OF HEAVY SNOW SHOWERS. THEY MAY ALSO VARY TREMENDOUSLY FROM ONE POINT TO ANOTHER...SO PLAN AHEAD FOR A SLOW AND HAZARDOUS LATE AFTERNOON AND EVENING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
069 WWUS45 KBOU 260103 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 603 PM MST WED FEB 25 2015 ...HEAVY SNOW IN AND NEAR THE FOOTHILLS TONIGHT... .THE NEXT STORM SYSTEM WILL MOVE ACROSS NORTHERN COLORADO THROUGH TONIGHT. HEAVY SNOW WITH SNOWFALL RATES OF ONE TO TWO INCHES PER HOUR WILL LIKELY OCCUR IN AND RIGHT NEXT TO THE FRONT RANGE FOOTHILLS THIS EVENING. DUE TO EXPECTED CONTINUED HEAVY SNOW IN WESTERN BOULDER AND JEFFERSON COUNTIES...THE WINTER WEATHER ADVISORY HAS BEEN UPGRADED TO A WINTER STORM WARNING TONIGHT. COZ039-260915- /O.UPG.KBOU.WW.Y.0013.000000T0000Z-150226T1300Z/ /O.EXA.KBOU.WS.W.0005.000000T0000Z-150226T1300Z/ BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT 603 PM MST WED FEB 25 2015 ...WINTER STORM WARNING IN EFFECT UNTIL 6 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL 6 AM MST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...SNOW WILL CONTINUE TONIGHT. SNOW WILL BE HEAVY AT TIMES THIS EVENING. SNOW INTENSITY IS EXPECTED TO DECREASE OVERNIGHT. * SNOW ACCUMULATIONS...6 TO 12 INCHES WITH POTENTIAL FOR EVEN MORE VARIATION. AT THIS TIME...THE HEAVIEST TOTALS ARE MOST LIKELY TO OCCUR IN BOULDER COUNTY. * WIND/VISIBILITY...NORTHEAST WINDS AT 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN THE HEAVIER SNOW SHOWERS. * IMPACTS...TRAVEL CONDITIONS MAY CHANGE VERY RAPIDLY THIS AFTERNOON WITH THE ONSET OF HEAVY SNOW SHOWERS. THEY MAY ALSO VARY TREMENDOUSLY FROM ONE POINT TO ANOTHER...SO PLAN AHEAD FOR A SLOW AND HAZARDOUS LATE AFTERNOON AND EVENING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ035-036-260915- /O.CON.KBOU.WS.W.0005.000000T0000Z-150226T1300Z/ 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 603 PM MST WED FEB 25 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...SNOW WILL BE HEAVY AT TIMES THROUGH THIS EVENING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY OVERNIGHT. SOME LIGHT SNOW WILL LIKELY LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...6 TO 12 INCHES BY THURSDAY MORNING. HEAVIEST TOTALS IN THE FOOTHILLS OF BOULDER AND JEFFERSON COUNTIES. * WIND/VISIBILITY...NORTHEAST WINDS AT 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN THE HEAVIER SNOW SHOWERS. * IMPACTS...TRAVEL WILL QUICKLY BECOME DIFFICULT THIS AFTERNOON DUE TO SNOW COVERED ROADS AND POOR VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ033-034-260915- /O.CON.KBOU.WW.Y.0013.000000T0000Z-150226T1300Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 603 PM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...SNOW WILL CONTINUE TONIGHT...HEAVY AT TIMES THIS EVENING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY LATE TONIGHT... BUT SOME LIGHT SNOW WILL LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...4 TO 10 INCHES...HEAVIEST IN THE FRONT RANGE MOUNTAINS FROM ROCKY MOUNTAIN NATIONAL PARK THROUGH THE INDIAN PEAKS WILDERNESS. * WIND/VISIBILITY...NORTHWEST 20 TO 30 MPH DECREASING TO 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN HEAVIER SNOW SHOWERS AND AREAS OF BLOWING SNOW. * IMPACTS...SNOW COVERED ROADS AND POOR VISIBILITIES AT TIMES WILL LEAD TO HAZARDOUS AND SLOW TRAVEL CONDITIONS...INCLUDING I- 70 AND THE APPROACHES TO THE EISENHOWER TUNNEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ040-041-043-260915- /O.CON.KBOU.WW.Y.0013.000000T0000Z-150226T1300Z/ NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY- INCLUDING THE CITIES OF...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR... EATON...FORT LUPTON...GREELEY...ROGGEN 603 PM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...MODERATE TO HEAVY SNOW WILL CONTINUE THROUGH THIS EVENING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY LATE TONIGHT... BUT SOME LIGHT SNOW WILL LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES. * WIND/VISIBILITY...NORTHEAST 15 TO 30 MPH DECREASING TO 10 TO 20 MPH OVERNIGHT. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN HEAVIER SNOW SHOWERS AND AREAS OF BLOWING SNOW. * IMPACTS...SNOW COVERED ROADS AND POOR VISIBILITIES AT TIMES WILL LEAD TO HAZARDOUS AND SLOW TRAVEL CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
342 WWUS45 KBOU 260320 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 820 PM MST WED FEB 25 2015 ...HEAVY SNOW IN AND NEAR THE FOOTHILLS TONIGHT... .SNOW HAS DECREASED ACROSS MUCH OF THE DENVER AREA FOR THE MOMENT. HOWEVER...A STRONGER COLD FRONT AND A BAND OF HEAVIER SNOW IS POISED TO RAPIDLY MOVE SOUTHWARD OVER THE URBAN CORRIDOR THROUGH 11 PM. HEAVY SNOW WITH SNOWFALL RATES UP TO AN INCH PER HOUR CAN STILL BE EXPECTED WITH THIS FRONTAL PASSAGE. WITH THE GUSTY WINDS EXPECT SOME BLOWING AND DRIFTING SNOW AS TEMPERATURES PLUMMET INTO THE UPPER TEENS AND LOWER 20S TOWARDS MIDNIGHT. COZ035-036-261300- /O.CON.KBOU.WS.W.0005.000000T0000Z-150226T1300Z/ 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 820 PM MST WED FEB 25 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...SNOW WILL BE HEAVY AT TIMES THROUGH THIS EVENING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY OVERNIGHT. SOME LIGHT SNOW WILL LIKELY LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...6 TO 12 INCHES BY THURSDAY MORNING. HEAVIEST TOTALS IN THE FOOTHILLS OF BOULDER AND JEFFERSON COUNTIES. * WIND/VISIBILITY...NORTHEAST WINDS AT 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN THE HEAVIER SNOW SHOWERS. * IMPACTS...TRAVEL WILL QUICKLY BECOME DIFFICULT THIS AFTERNOON DUE TO SNOW COVERED ROADS AND POOR VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ039-261300- /O.CON.KBOU.WS.W.0005.000000T0000Z-150226T1300Z/ BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT 820 PM MST WED FEB 25 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...SNOW WILL CONTINUE TONIGHT. SNOW WILL BE HEAVY AT TIMES THIS EVENING. SNOW INTENSITY IS EXPECTED TO DECREASE OVERNIGHT. * SNOW ACCUMULATIONS...6 TO 12 INCHES. * WIND/VISIBILITY...NORTHEAST WINDS AT 15 TO 30 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN THE HEAVIER SNOW SHOWERS. * IMPACTS...EXPECT ICY AND SNOWPACKED ROADS. GUSTY WINDS WILL CREATE NEAR ZERO VISIBILITIES AT TIMES WITH THE HEAVY SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ033-034-261300- /O.CON.KBOU.WW.Y.0013.000000T0000Z-150226T1300Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 820 PM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...SNOW WILL CONTINUE TONIGHT...HEAVY AT TIMES THIS EVENING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY LATE TONIGHT... BUT SOME LIGHT SNOW WILL LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...4 TO 10 INCHES...HEAVIEST IN THE FRONT RANGE MOUNTAINS FROM ROCKY MOUNTAIN NATIONAL PARK THROUGH THE INDIAN PEAKS WILDERNESS. * WIND/VISIBILITY...NORTHWEST 20 TO 30 MPH DECREASING TO 10 TO 20 MPH. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN HEAVIER SNOW SHOWERS AND AREAS OF BLOWING SNOW. * IMPACTS...SNOW COVERED ROADS AND POOR VISIBILITIES AT TIMES WILL LEAD TO HAZARDOUS AND SLOW TRAVEL CONDITIONS...INCLUDING I- 70 AND THE APPROACHES TO THE EISENHOWER TUNNEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ040-041-043-261300- /O.CON.KBOU.WW.Y.0013.000000T0000Z-150226T1300Z/ NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY- INCLUDING THE CITIES OF...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR... EATON...FORT LUPTON...GREELEY...ROGGEN 820 PM MST WED FEB 25 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST THURSDAY... * TIMING...MODERATE TO HEAVY SNOW WILL REDEVELOP THIS EVENING. THE SNOW IS EXPECTED TO DECREASE IN INTENSITY LATE TONIGHT... BUT SOME LIGHT SNOW WILL LINGER INTO THURSDAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES. * WIND/VISIBILITY...NORTHEAST 20 TO 35 MPH DECREASING TO 10 TO 20 MPH OVERNIGHT. VISIBILITIES UNDER A QUARTER MILE CAN BE ANTICIPATED IN HEAVIER SNOW SHOWERS AND AREAS OF BLOWING SNOW. * IMPACTS...SNOW COVERED ROADS AND POOR VISIBILITIES AT TIMES WILL LEAD TO HAZARDOUS AND SLOW TRAVEL CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
084 WWUS45 KBOU 261114 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 414 AM MST THU FEB 26 2015 COZ035-036-039-261215- /O.CAN.KBOU.WS.W.0005.000000T0000Z-150226T1300Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND... RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK...ARVADA...BOULDER... GOLDEN...LAKEWOOD...LONGMONT 414 AM MST THU FEB 26 2015 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER STORM WARNING. AREAS OF LIGHT SNOW WILL LINGER THROUGH EARLY MORNING WITH ANY ADDITIONAL ACCUMULATION UNDER ONE INCH. $$ COZ033-034-040-041-043-261215- /O.CAN.KBOU.WW.Y.0013.000000T0000Z-150226T1300Z/ 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- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY- 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...AURORA...BRIGHTON... CITY OF DENVER...DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH... LITTLETON...PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA... LARKSPUR...EATON...FORT LUPTON...GREELEY...ROGGEN 414 AM MST THU FEB 26 2015 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. AREAS OF LIGHT SNOW WILL LINGER IN THE MOUNTAINS AND NEAR THE FOOTHILLS EARLY THIS MORNING WITH ADDITIONAL ACCUMULATIONS UNDER ONE INCH. $$
What forecasters said that day
The local office's own words before this winter storm 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 winter storm warning went out at Feb 24, 9:43 PM MST, 6 hours 35 minutes earlier.
Area forecast discussion, Feb 24, 9:43 PM MST, 6 hours 35 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER/BOULDER CO 943 PM MST TUE FEB 24 2015 .UPDATE... ISSUED AT 942 PM MST TUE FEB 24 2015 UPSTREAM WEATHER MAKER LOOKS RATHER DISORGANIZED ON SATELLITE THIS EVENING AND QG FIELDS SUPPORT THAT. HAVE SOME DOUBTS THAT MTN AREAS WILL SEE ANY SNOW ACCUMULATION BEFORE MORNING...BUT WITH NORTHWEST FLOW AND WITH MID-LEVELS BECOMING INCREASINGLY MOIST AND UNSTABLE WITH CAA...WILL HOLD ONTO THE LIKELY POPS LATE TONIGHT AND THE LOW SNOW AMTS IN MTN ZONES 31...33 AND 34. OTHERWISE...A CANADIAN COLD FRONT IS MAKING ITS WAY SOUTHWARD ACROSS CENTRAL MONTANA AND AT ITS PRESENT SPEED...IT SHOULD MANAGE TO REACH NORTHERN SECTIONS OF THE CWA BY 12Z...IF NOT A TAD EARLIER THAN THAT. BASED ON LATEST SATELLITE IMAGERY...SPED UP THE INCREASE IN CLOUD COVER OVERNIGHT...MOST OF WHICH WILL BE MID AND HIGH CLOUDS OVER THE PLAINS. NO CHANGES TO THE WINTER STORM WATCH IN THE FRONT RANGE FOOTHILLS ZONES 35-36 AT THIS TIME. AS NEW MODEL DATA ROLLS IN...THE DECISION TO ADD MORE HIGHLIGHTS WILL HOPEFULLY BECOME CLEARER OVERNIGHT. 00Z NAM CONTINUES TO INDICATE A BULLSEYE OF 7-14 INCH SNOW ACCUM OVER THE NRN FTHLS BY MIDDAY THURSDAY. HOWEVER SNOW AMOUNTS OFF THE 00Z GFS STILL MUCH LOWER THAN THOSE OFF THE NAM. WILL REFRAIN FROM MAKING ANY MEANINGFUL ADJUSTMENTS TO SNOW TOTALS AT THIS TIME. && .SHORT TERM...(THIS EVENING THROUGH WEDNESDAY) ISSUED AT 321 PM MST TUE FEB 24 2015 THERE ARE NO CLOUDS OVER THE CWA RIGHT NOW. THE NEXT STORM'S INITIAL BATCH OF CLOUDINESS IS OVER NORTHERN WYOMING RIGHT NOW HEADING SOUTH-SOUTHEASTWARD. MODELS HAVE WEAK NORTHEASTERLY... THEN NORTHWESTERLY...THEN WEST-NORTHWESTERLY FLOW ALOFT FOR THE CWA TONIGHT THROUGH WEDNESDAY AFTERNOON. SPEEDS INCREASE A BIT ON WEDNESDAY. THERE IS WEAK QG ASCENT PROGGED FOR THE CWA TONIGHT AND WEDNESDAY MORNING...GETTING A BIT STRONGER FOR THE CWA BY AFTERNOON. THE BOUNDARY LAYER FLOW WILL BE NORMAL DRAINAGE OVERNIGHT...WITH A COLD FRONT AND NORTH-NORTHEASTERLY UPSLOPE BEHIND IT BY AFTERNOON. FOR MOISTURE...THERE IS NONE EARLY THIS EVENING...THEN IT INCREASES FROM NORTHWEST TO SOUTHEAST OVERNIGHT AND WEDNESDAY. MOISTURE INCREASES AND DEEPENS DRAMATICALLY THROUGH THE DAY WEDNESDAY. THE QPF FIELDS SHOW NOTHING THIS EVENING...THEN A TAD IN THE MOUNTAINS OVERNIGHT. THERE IS A TAD FOR THE MOUNTAINS AND NORTHERN PLAINS WEDNESDAY MORNING...WITH SOME PROGGED FOR ALL THE CWA BY 00Z LATE AFTERNOON. WILL START SOME MOUNTAIN POPS IN EARNEST AFTER MIDNIGHT TONIGHT. WIDESPREAD SNOW CAN BE EXPECTED OVER ALL THE CWA BY LATE WEDNESDAY AFTERNOON ...SO HIGH POPS BY THEN. AMOUNTS MAY BE HIGH ENOUGH IN THE FOOTHILLS ...SO "WATCH" HIGHLIGHTS THERE LOOK GOOD. FOR TEMPERATURES... WEDNESDAY'S HIGHS SHOULD BE 0-3 C COLDER THAN CURRENT READINGS. .LONG TERM...(WEDNESDAY NIGHT THROUGH TUESDAY) ISSUED AT 321 PM MST TUE FEB 24 2015 SHORTWAVE AND JET STREAK WILL DROP ACROSS THE AREA WEDNESDAY NIGHT. GETTING MIXED SIGNALS AS FAR AS THE SNOW POTENTIAL...NAM HAS INSISTED ON GREATER INSTABILITY AND GENERATES A QUICK SHOT OF HEAVY SNOW...OVER A FOOT...IN THE FOOTHILLS OVERNIGHT. LIGHTER AMOUNTS ON THE PLAINS BUT STILL AN ENHANCED AREA MOVING OFF THE FOOTHILLS INTO DENVER CORRESPONDING TO THE PERIOD OF NORTHEAST WINDS IN THE EVENING. GFS HAS LESS INSTABILITY BUT STILL HAS DECENT LIFT WITH LITTLE RESISTANCE TO THE VERTICAL MOTION...IT STILL GENERATES 4 TO 7 INCHES OF SNOW ACROSS THE DENVER METRO AREA BY THURSDAY AFTERNOON. EVERYTHING IS LIGHTER ON THE PLAINS THOUGH THERE SHOULD BE A PERIOD OF SNOW WITH THE SHORTWAVE WEDNESDAY NIGHT...AND THE NAM DOES HINT AT SOME LIGHT BANDED PRECIP CONTINUING THURSDAY AS WELL. ENOUGH OF A THREAT FOR A WINTER STORM WATCH FOR THE FOOTHILLS AS UPSLOPE ENHANCEMENT SHOULD BE PROLONGED AND THE SNOW COULD BE VERY HEAVY FOR A WHILE WEDNESDAY NIGHT. FOR ADJACENT AREAS THERE WILL BE SUBSTANTIAL ACCUMULATIONS...BUT THE THREAT OF HEAVY SNOWFALL LOOKS LOWER...WE MAY WIND UP WITH ADVISORIES FOR DENVER FOR A FAIRLY PROLONGED LIGHT TO MODERATE SNOW. TRENDED THE REST OF THE FORECAST TOWARD CLOUDIER AND COLD CONDITIONS WITH HIGHER POPS. THE TROUGH DIGS INTO THE SOUTHWEST AND LEAVES US IN COLD LOW LEVEL AIR WITH MOISTURE COMING OVER US AT TIMES. FIRST PERIOD OF WEAK LIFT FROM WARM ADVECTION WILL SPREAD INTO THE CENTRAL PART OF THE STATE THURSDAY AFTERNOON AND ACROSS OUR AREA THURSDAY NIGHT...DECENT CHANCE OF LIGHT SNOW IN THIS TIME ESPECIALLY MOUNTAINS AND SOUTH OF INTERSTATE 70. THERE IS DECENT AGREEMENT ON A BIT OF SHORTWAVE RIDGING FRIDAY INTO EARLY SATURDAY...BUT THERE WILL STILL BE SOME MOISTURE AND WEAK LIFT SO THE SNOW MAY NOT STOP ALTOGETHER. THERE IS ALSO DECENT AGREEMENT ON SHORTWAVES ROTATING AROUND THE SOUTHWEST TROUGH WITH ONE OR TWO KICKING OUT OVER OR SOUTH OF US THIS WEEKEND AS MORE ENERGY DROPS INTO THE BACK OF THE TROUGH AND HOLDS THE LARGER SCALE TROUGH AXIS WEST OF US. THIS WOULD PROVIDE ONE OR TWO MORE PERIOD WHERE LIGHT SNOW IS LIKELY IN THE SATURDAY/SUNDAY TIME FRAME...AND MAINTAIN THE LOW LEVEL COLD AIR AND CLOUD COVER. THIS PATTERN CONTINUES INTO NEXT WEEK...AGAIN VARYING TIMING BUT THE CONSENSUS IS FOR THE LARGER TROUGH TO WEAKEN AND COME ACROSS US MONDAY OR TUESDAY...BUT THEN YET ANOTHER WEAK TO MODERATE STRENGTH TROUGH ON WEDNESDAY OR THURSDAY. WITH THE WEST COAST RIDGE/EASTERN TROUGH PATTERN CONTINUING...WE MAY SEE SOME IMPROVEMENT AFTER THAT OR WE MAY REMAIN IN THE STORM TRACK BEYOND THAT. WINTER IS NOT GOING TO GIVE UP JUST YET. && .AVIATION...(FOR THE TAFS THROUGH 00Z WEDNESDAY LATE AFTERNOON) ISSUED AT 942 PM MST TUE FEB 24 2015 SLY WINDS AND INCREASING HIGH CLOUDS FOR THE NEXT SEVERAL HOURS. SPEEDS GENERALLY UNDER 12 KTS. COLD FRONT UP IN MONTANA AT THIS TIME WILL RACE SOUTH AND BE THROUGH NORTHEAST COLORADO BY MID- MORNING. NORTH-NORTHWESTERLY WINDS IN THE WAKE OF THIS FRONT WILL TURN NORTHEASTERLY DURING THE AFTERNOON. SHOULD SEE CEILINGS STEADILY FALLING WHEN THIS HAPPENS...AND LIGHT SNOW DEVELOPING OVER AND AROUND DIA BETWEEN 3 AND 5 PM MST. MAY ALSO SEE CEILINGS LOWERING BELOW OVC010 WITH 1-2SM -SN VSBYS BY EVENING. && .BOU WATCHES/WARNINGS/ADVISORIES... WINTER STORM WATCH FROM WEDNESDAY AFTERNOON THROUGH THURSDAY MORNING FOR COZ035-036. && UPDATE...BAKER SHORT TERM...RJK LONG TERM...GIMMESTAD AVIATION...BAKER
Hazardous weather outlook, Feb 24, 3:41 PM MST, 12 hours 37 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER/BOULDER CO 341 PM MST TUE FEB 24 2015 COZ030>051-252245- 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- 341 PM MST TUE FEB 24 2015 ...WINTER STORM WATCH FOR THE FRONT RANGE FOOTHILLS WEDNESDAY AFTERNOON THROUGH THURSDAY MORNING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...THIS AFTERNOON AND TONIGHT MOSTLY SUNNY SKIES AND WARMER TEMPERATURES WILL PREVAIL TODAY. SNOW AND GUSTY WINDS WILL BEGIN DEVELOPING OVER THE MOUNTAINS LATE TONIGHT IN ADVANCE OF THE NEXT STORM SYSTEM. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY MORE SNOW WILL MOVE BACK INTO THE MOUNTAINS...FOOTHILLS...AND FRONT RANGE URBAN CORRIDOR WEDNESDAY AFTERNOON AS ANOTHER COLD FRONT AND UPPER LEVEL DISTURBANCE MOVES ACROSS THE AREA. THE SNOW WILL SPREAD FROM THE MOUNTAINS ACROSS THE FOOTHILLS AND PLAINS WEDNESDAY AFTERNOON AND EVENING. A PERIOD OF HEAVY SNOW IS POSSIBLE WEDNESDAY AFTERNOON AND NIGHT...AND SNOWY DRIVES ARE LIKELY FOR BOTH THE WEDNESDAY EVENING AND THURSDAY MORNING COMMUTES. SNOW ACCUMULATIONS OF 8 TO 16 INCHES IS POSSIBLE OVER THE FRONT RANGE FOOTHILLS...WHILE THE URBAN CORRIDOR COULD SEE 4 TO 7 INCHES BY THURSDAY MORNING. AREAS OF LIGHTER SNOW WILL LINGER ON THURSDAY WITH MUCH COLDER TEMPERATURES CONTINUING INTO FRIDAY. ANOTHER STORM SYSTEM IS LURKING FOR THE WEEKEND WHICH COULD BRING COLDER TEMPERATURES AND MORE SNOW TO THE FORECAST AREA BY LATE SATURDAY OR SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 25, 4:18 AM MST | Winter Weather Advisory | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 10 more | 24 hr |
Nearby
Winter Storm Warnings in Colorado, 2015Every winter storm warning in 2015
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.