Alert archive / Colorado / Winter Storm Warnings in 2007
Winter Storm Warning 4, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Apr 12, 2007, 5:38 AM MDT for 22 counties in Colorado. It took effect at Apr 12, 2007, 4:30 PM MDT. It was in force for 19 hr. 1 report 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
- Apr 12, 2007, 5:38 AM MDT (11:38 UTC)
- In effect from
- Apr 12, 2007, 4:30 PM MDT
- Expired
- Apr 13, 2007, 11:38 AM MDT
- In force
- 19 hr
- Issued by
- NWS Denver/Boulder, CO
All 22 counties
Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Park County, CO, Phillips County, CO, Sedgwick County, CO, Summit County, CO, Washington County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 21 km from the middle of the area, began a volume at 11:42 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 |
|---|---|---|---|
| Apr 12, 7:25 PM MDT | SNOW 4 | 7 Wsw Hugo, 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 00:00Z, 11.6 hours before the alert went out and 120 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
- 3046 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS45 KBOU 121138 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 538 AM MDT THU APR 12 2007 ...STRONG STORM SYSTEM HEADING TOWARD COLORADO... .AN UNSEASONABLY STRONG STORM SYSTEM IS EXPECTED TO BRING HEAVY SNOW TO THE HIGH COUNTRY AND PLAINS LATER TONIGHT AND FRIDAY. A STORM SYSTEM ORGANIZING ACROSS OREGON WILL MOVE INTO NORTHERN ARIZONA LATE TONIGHT AND THEN ACROSS NORTHERN NEW MEXICO ON FRIDAY. AN INITIAL WEAKER DISTURBANCE WILL MOVE ACROSS THE AREA THIS AFTERNOON WITH LIGHT SNOW SPREADING ACROSS THE MOUNTAINS. HOWEVER...THE HEAVIEST SNOW WILL ACCOMPANY THE MAIN STORM LATER TONIGHT AND FRIDAY. AT THIS TIME...THE HEAVIEST SNOW ACCUMULATIONS ARE EXPECTED TO OCCUR IN THE FOOTHILLS AND ACROSS THE PALMER DIVIDE AND STRETCHING EASTWARD ACROSS THE EASTERN PLAINS. THERE WILL BE ENOUGH WIND TO CREATE AREAS OF BLOWING AND DRIFTING SNOW. COZ038>051-121945- /O.UPG.KBOU.WS.A.0004.070413T0600Z-070414T0000Z/ /O.NEW.KBOU.WS.W.0004.070413T0600Z-070414T0000Z/ 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...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 538 AM MDT THU APR 12 2007 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY FOR THE PALMER DIVIDE AND NORTHEAST PLAINS OF COLORADO... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. SCATTERED RAIN AND SNOW SHOWERS WILL DEVELOP THIS AFTERNOON...BEFORE MIXING AND CHANGING TO ALL SNOW TONIGHT. SNOWFALL ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED BY DAYBREAK FRIDAY WITH TOTAL SNOW ACCUMULATIONS OF 6 TO 12 INCHES POSSIBLE BEFORE THE SNOW DECREASES FRIDAY NIGHT. THE HEAVIER SNOWFALL TOTALS WILL OCCUR IN THE FRONT RANGE AND AREAS ADJACENT TO THE FOOTHILLS. THERE WILL BE AREAS OF BLOWING AND DRIFTING SNOW. 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. $$ COZ033>037-121945- /O.UPG.KBOU.WS.A.0004.070413T0600Z-070414T0000Z/ /O.NEW.KBOU.WS.W.0004.070413T0600Z-070414T0000Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING...CAMERON PASS...LARAMIE AND MEDICINE BOW MOUNTAINS... RABBIT EARS RANGE...ROCKY MOUNTAIN NATIONAL PARK... WILLOW CREEK PASS...BERTHOUD PASS...BRECKENRIDGE... EAST SLOPES MOSQUITO RANGE...EAST SLOPES SOUTHERN GORE RANGE... EISENHOWER TUNNEL...INDIAN PEAKS...KENOSHA MOUNTAINS... MOUNT EVANS...WILLIAMS FORK MOUNTAINS...WINTER PARK... ESTES PARK...GLENDEVEY...NEDERLAND...RED FEATHER LAKES...BAILEY... CENTRAL CITY...EVERGREEN...GEORGETOWN...IDAHO SPRINGS... WESTCREEK...FAIRPLAY...HARTSEL...LAKE GEORGE...SOUTH PARK 538 AM MDT THU APR 12 2007 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY FOR THE NORTH CENTRAL MOUNTAINS AND FRONT RANGE FOOTHILLS... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. LIGHT SNOW WILL SPEAD ACROSS THE MOUNTAINS TODAY...WITH PERIODS OF HEAVY SNOW LATER TONIGHT AND FRIDAY...ESPECIALLY ON THE EAST SLOPES OF THE FRONT RANGE. IN GENERAL...6 TO 12 INCHES OF SNOW IS EXPECTED WITH UP TO 18 INCHES POSSIBLE IN THE FOOTHILLS. REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$ SWE/MRB
7 follow-up statements
000 WWUS45 KBOU 121807 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1207 PM MDT THU APR 12 2007 ...STRONG STORM SYSTEM HEADING TOWARD COLORADO... .A STRONG STORM SYSTEM IS EXPECTED TO BRING HEAVY SNOW TO PORTIONS OF THE HIGH COUNTRY AND PLAINS LATER TONIGHT AND FRIDAY. THE MAIN STORM IS CURRENTLY OVER NEVADA MOVING TO THE SOUTHEAST. A SYSTEM AHEAD OF THE MAIN STORM IS NOW SPREADING SNOW ACROSS THE HIGH COUNTRY. LIGHT SNOW WITH THIS SYSTEM WILL SPREAD ONTO THE PLAINS THIS AFTERNOON FROM SOUTH TO NORTH. TEMPERATURES ARE COLD ENOUGH SO THAT RAIN IS NOT EXPECTED. SNOWFALL AMOUNTS TODAY SHOULD REMAIN LIGHT BUT THERE COULD BE SOME ACCUMULATION BY RUSH HOUR ALONG THE FRONT RANGE. LATEST INDICATIONS ARE THAT THE MAIN STORM WILL PASS FAR ENOUGH SOUTH SO THAT THE HEAVIEST SNOWS WILL BE SOUTH OF THE DENVER METRO AREA AND OVER THE PALMER DIVIDE WITH POSSIBLY OVER A FOOT OF SNOW IN THESE AREAS. SIGNIFICANT SNOWFALL IS STILL EXPECTED IN THE WARNING AREA WITH THE LIGHTEST AMOUNTS NEAR THE WYOMING BORDER. THERE WILL BE ENOUGH WIND TO CREATE AREAS OF BLOWING AND DRIFTING SNOW. COZ038>051-130215- /O.CON.KBOU.WS.W.0004.070413T0600Z-070414T0000Z/ 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...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 1207 PM MDT THU APR 12 2007 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY. LIGHT SNOW WILL SPREAD FROM SOUTH TO NORTH ACROSS THE AREA THIS AFTERNOON. AREAS FROM BOULDER TO DENVER AND SOUTHWARD COULD SEE UP TO AN INCH OR SO OF ACCUMULATION BY LATE TODAY. SNOW WILL INCREASE IN INTENSITY OVERNIGHT...ESPECIALLY AFTER MIDNIGHT. SNOWFALL ACCUMULATIONS BY DAYBREAK FRIDAY WILL RANGE FROM 1 TO 4 INCHES NEAR THE WYOMING BORDER TO 3 TO 7 INCHES FARTHER SOUTH. TOTAL SNOW ACCUMULATIONS OF 5 TO 12 INCHES POSSIBLE BEFORE THE SNOW DECREASES FRIDAY NIGHT. THE HEAVIER SNOWFALL TOTALS WILL OCCUR IN THE FRONT RANGE AND AREAS ADJACENT TO THE FOOTHILLS WITH LESS SNOW CLOSER TO THE WYOMING BORDER. THERE WILL BE AREAS OF BLOWING AND DRIFTING SNOW. 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. $$ COZ033>037-130215- /O.CON.KBOU.WS.W.0004.070413T0600Z-070414T0000Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING...CAMERON PASS...LARAMIE AND MEDICINE BOW MOUNTAINS... RABBIT EARS RANGE...ROCKY MOUNTAIN NATIONAL PARK... WILLOW CREEK PASS...BERTHOUD PASS...BRECKENRIDGE... EAST SLOPES MOSQUITO RANGE...EAST SLOPES SOUTHERN GORE RANGE... EISENHOWER TUNNEL...INDIAN PEAKS...KENOSHA MOUNTAINS... MOUNT EVANS...WILLIAMS FORK MOUNTAINS...WINTER PARK... ESTES PARK...GLENDEVEY...NEDERLAND...RED FEATHER LAKES...BAILEY... CENTRAL CITY...EVERGREEN...GEORGETOWN...IDAHO SPRINGS... WESTCREEK...FAIRPLAY...HARTSEL...LAKE GEORGE...SOUTH PARK 1207 PM MDT THU APR 12 2007 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY. LIGHT SNOW WILL SPREAD ACROSS THE MOUNTAINS TODAY...WITH PERIODS OF HEAVY SNOW LATER TONIGHT AND FRIDAY...ESPECIALLY ON THE EAST SLOPES OF THE FRONT RANGE. SNOWFALL AMOUNTS WILL BE HEAVIEST ON THE EASTERN SLOPES UP TO THE CONTINENTAL DIVIDE WHERE 12 TO 18 INCHES OF SNOW IS POSSIBLE IN THE FOOTHILLS. OTHER AREAS OF THE MOUNTAINS WILL RECEIVE LESS SNOW...RANGING FROM 3 TO 10 INCHES. REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. $$
000 WWUS45 KBOU 122230 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 430 PM MDT THU APR 12 2007 ...STRONG STORM SYSTEM WILL BRING WIDESPREAD SNOW... .A STRONG STORM SYSTEM WILL TRACK ACROSS ARIZONA TONIGHT AND THEN MOVE TOWARDS THE OKLAHOMA PANHANDLE BY LATE FRIDAY BRINGING WIDESPREAD SNOW TO THE HIGH COUNTRY AND PLAINS TONIGHT AND FRIDAY. THE MORE SOUTHERN TRACK OF THE SYSTEM WILL KEEP THE HEAVIEST OF THE SNOWS JUST SOUTH AND EAST OF THE DENVER METRO AREA. SIGNIFICANT SNOWFALL IS STILL EXPECTED IN THE DENVER AREA AND ACROSS MUCH OF NORTHEASTERN COLORADO. SNOWFALL WILL BE LIGHTEST CLOSER TO THE WYOMING BORDER AND INCREASE IN AREAS SOUTH OF INTERSTATE 76 AS WELL AS CLOSER TO THE FOOTHILLS. THERE WILL BE ENOUGH WIND TO CREATE AREAS OF BLOWING AND DRIFTING SNOW WHICH COULD CAUSE TRAVEL PROBLEMS OVER PORTIONS OF THE EASTERN PLAINS LATE TONIGHT AND FRIDAY. IT IS POSSIBLE THAT A FURTHER SHIFT IN THE STORM TRACK COULD OCCUR AND THIS WOULD REDUCE THE TOTAL SNOW AMOUNTS. COZ038>051-130630- /O.EXT.KBOU.WS.W.0004.070412T2230Z-070414T0000Z/ 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...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 430 PM MDT THU APR 12 2007 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM MDT FRIDAY... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 6 PM MDT FRIDAY. SNOW WILL INCREASE IN COVERAGE AND INTENSITY OVERNIGHT. SNOWFALL ACCUMULATIONS BY DAYBREAK FRIDAY WILL RANGE FROM 1 TO 4 INCHES NEAR THE WYOMING BORDER TO 3 TO 7 INCHES FARTHER SOUTH. TOTAL SNOW ACCUMULATIONS OF 5 TO 12 INCHES ARE POSSIBLE BEFORE THE SNOW DECREASES ALTE FRIDAY ON THE PLAINS. UP TO 15 INCHES OF SNOW ARE POSSIBLE ON THE PALMER DIVIDE. HEAVIER SNOWFALL TOTALS WILL ALSO BE FOUND IN THE FRONT RANGE AND AREAS ADJACENT TO THE FOOTHILLS WITH LESS SNOW CLOSER TO THE WYOMING BORDER. THERE WILL BE AREAS OF BLOWING AND DRIFTING SNOW LATER TONIGHT AND FRIDAY ON THE EASTERN PLAINS WHICH COULD CREATE TRAVEL PROBLEMS ON SOME ROADS. REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. GUSTY WINDS ARE ALSO POSSIBLE. THIS COULD MAKE TRAVEL HAZARDOUS. $$ COZ033>037-130630- /O.EXT.KBOU.WS.W.0004.070412T2230Z-070414T0000Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING...CAMERON PASS...LARAMIE AND MEDICINE BOW MOUNTAINS... RABBIT EARS RANGE...ROCKY MOUNTAIN NATIONAL PARK... WILLOW CREEK PASS...BERTHOUD PASS...BRECKENRIDGE... EAST SLOPES MOSQUITO RANGE...EAST SLOPES SOUTHERN GORE RANGE... EISENHOWER TUNNEL...INDIAN PEAKS...KENOSHA MOUNTAINS... MOUNT EVANS...WILLIAMS FORK MOUNTAINS...WINTER PARK... ESTES PARK...GLENDEVEY...NEDERLAND...RED FEATHER LAKES...BAILEY... CENTRAL CITY...EVERGREEN...GEORGETOWN...IDAHO SPRINGS... WESTCREEK...FAIRPLAY...HARTSEL...LAKE GEORGE...SOUTH PARK 430 PM MDT THU APR 12 2007 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM MDT FRIDAY... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 6 PM MDT FRIDAY. SNOW WILL CONTINUE ACROSS THE MOUNTAINS TONIGHT AND FRIDAY. SNOWFALL AMOUNTS WILL BE QUITE VARIABLE WITH THE HEAVIEST TOTALS ON THE EAST SLOPES OF THE FRONT RANGE. SNOWFALL TOTALS ON THE EASTERN SLOPES UP TO THE CONTINENTAL DIVIDE WILL RANGE FROM 10 TO 18 INCHES...HEAVIEST IN THE EASTERN FOOTHILLS. OTHER AREAS OF THE MOUNTAINS WILL RECEIVE LESS SNOW...RANGING FROM 3 TO 8 INCHES. REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. GUSTY WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL HAZARDOUS. $$
000 WWUS45 KBOU 130309 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 909 PM MDT THU APR 12 2007 ...STRONG STORM SYSTEM WILL BRING SNOW TO NORTHERN COLORADO... .A STRONG STORM SYSTEM WILL TRACK FROM ARIZONA ACROSS CENTRAL NEW MEXICO ON FRIDAY AND THEN INTO THE OKLAHOMA PANHANDLE BY FRIDAY NIGHT. AT THIS TIME THE SYSTEM WILL MOVE FURTHER SOUTH THAN PREVIOUSLY THOUGHT THUS THIS WILL KEEP THE HEAVIEST OF THE SNOWS MAINLY TO THE SOUTH AND EAST OF THE DENVER METRO AREA. THERE WILL BE ENOUGH WIND TO CREATE AREAS OF BLOWING AND DRIFTING SNOW WHICH COULD CAUSE TRAVEL PROBLEMS OVER PORTIONS OF THE EASTERN PLAINS LATE TONIGHT AND FRIDAY ESPECIALLY ALONG AND SOUTH OF I-70. COZ038>051-131115- /O.CON.KBOU.WS.W.0004.000000T0000Z-070414T0000Z/ 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 909 PM MDT THU APR 12 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT FRIDAY. SNOW WILL GRADUALLY INCREASE IN COVERAGE OVERNIGHT. SNOWFALL ACCUMULATIONS BY DAYBREAK FRIDAY WILL RANGE FROM 1 TO 3 INCHES NEAR THE WYOMING BORDER TO 2 TO 4 INCHES FARTHER SOUTH OVER THE FRONT URBAN CORRIDOR AND PALMER DIVIDE. OVER THE EASTERN PLAINS ALONG AND SOUTH OF I-70 AMOUNTS WILL RANGE FROM 3 TO 6 INCHES. TOTAL SNOW ACCUMULATIONS OF 4 TO 8 INCHES ARE POSSIBLE BEFORE THE SNOW DECREASES LATE FRIDAY ON THE PLAINS. UP TO 10 INCHES OF SNOW ARE POSSIBLE ON THE PALMER DIVIDE AND OVER ELBERT AND LINCOLN COUNTIES. THERE WILL BE AREAS OF BLOWING AND DRIFTING SNOW LATER TONIGHT AND FRIDAY ON THE EASTERN PLAINS WHICH COULD CREATE TRAVEL PROBLEMS ON SOME ROADS ESPECIALLY ALONG AND SOUTH OF I-70. REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. GUSTY WINDS ARE ALSO POSSIBLE. THIS COULD MAKE TRAVEL HAZARDOUS. $$ COZ033>037-131115- /O.CON.KBOU.WS.W.0004.000000T0000Z-070414T0000Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK...ESTES PARK...GLENDEVEY... NEDERLAND...RED FEATHER LAKES...BAILEY...CENTRAL CITY... EVERGREEN...GEORGETOWN...IDAHO SPRINGS...WESTCREEK...FAIRPLAY... HARTSEL...LAKE GEORGE...SOUTH PARK 909 PM MDT THU APR 12 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT FRIDAY. SNOW WILL CONTINUE ACROSS THE MOUNTAINS TONIGHT AND FRIDAY. SNOWFALL AMOUNTS WILL BE QUITE VARIABLE WITH THE HEAVIEST TOTALS ON THE EAST SLOPES OF THE FRONT RANGE. SNOWFALL TOTALS ON THE EASTERN SLOPES UP TO THE CONTINENTAL DIVIDE WILL RANGE FROM 6 TO 12 INCHES...HEAVIEST IN THE EASTERN FOOTHILLS. OTHER AREAS OF THE MOUNTAINS WILL RECEIVE LESS SNOW...RANGING FROM 3 TO 6 INCHES. REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. GUSTY WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL HAZARDOUS. $$
000 WWUS45 KBOU 130505 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1105 PM MDT THU APR 12 2007 ...STRONG STORM SYSTEM TRACKING FURTHER SOUTH ACROSS SOUTHERN ARIZONA... .A STRONG STORM SYSTEM WILL TRACK ACROSS SOUTHERN ARIZONA AND THEN ACROSS CENTRAL NEW MEXICO ON FRIDAY AND THEN INTO THE OKLAHOMA PANHANDLE BY FRIDAY NIGHT. AT THIS TIME THE SYSTEM WILL MOVE FURTHER SOUTH THAN PREVIOUSLY THOUGHT...HENCE WINTER STORM WARNINGS WILL BE CANCELED EXCEPT ACROSS THE PALMER DIVIDE AND STRETCHING ACROSS WASHINGTON COUNTY. THERE WILL BE ENOUGH WIND TO CREATE AREAS OF BLOWING AND DRIFTING SNOW WHICH COULD CAUSE TRAVEL PROBLEMS OVER PORTIONS OF THE EASTERN PLAINS LATE TONIGHT AND FRIDAY ESPECIALLY ALONG AND SOUTH OF I-70. COZ033>040-042>045-048-050-051-130615- /O.CAN.KBOU.WS.W.0004.000000T0000Z-070414T0000Z/ 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-NORTHEAST WELD COUNTY- CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-LOGAN COUNTY- SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING...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... ESTES PARK...GLENDEVEY...NEDERLAND...RED FEATHER LAKES...BAILEY... CENTRAL CITY...EVERGREEN...GEORGETOWN...IDAHO SPRINGS... WESTCREEK...FAIRPLAY...HARTSEL...LAKE GEORGE...SOUTH PARK... 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... JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 1105 PM MDT THU APR 12 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER STORM WARNING. LIGHT SNOW WILL SLOWLY DEVELOP LATER TONIGHT WITH A PERIOD OF LIGHT SNOW DURING THE DAY ON FRIDAY BEFORE DIMINISHING FRIDAY NIGHT. AT THIS TIME SNOW ACCUMULATIONS WILL ONLY BE IN THE 1 TO 4 INCH RANGE OVER THE URBAN CORRIDOR AND ADJACENT AREAS TO THE WEST AND NORTH. THE HIGHER AMOUNTS WILL BE SOUTH AND EAST OF THE DENVER AREA. $$ COZ041-046-047-049-131315- /O.CON.KBOU.WS.W.0004.000000T0000Z-070414T0000Z/ ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- WASHINGTON COUNTY- INCLUDING...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR... AGATE...HUGO...LIMON...MATHESON...FORDER...KARVAL...KUTCH... PUNKIN CENTER...AKRON...COPE...LAST CHANCE...OTIS 1105 PM MDT THU APR 12 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT FRIDAY. A MIX OF SNOW...DRIZZLE AND FREEZING DRIZZLE WILL TURN TO ALL SNOW DURING THE NIGHT. SNOWFALL ACCUMULATIONS BY DAYBREAK FRIDAY WILL RANGE FROM FROM 2 TO 6 INCHES. TOTAL SNOW ACCUMULATIONS OF 4 TO 8 INCHES ARE POSSIBLE BEFORE THE SNOW DECREASES LATE FRIDAY ON THE PLAINS. UP TO 10 INCHES OF SNOW ARE POSSIBLE ON THE PALMER DIVIDE AND OVER ELBERT AND LINCOLN COUNTIES. THERE WILL BE AREAS OF BLOWING AND DRIFTING SNOW LATER TONIGHT AND FRIDAY ON THE EASTERN PLAINS WHICH COULD CREATE TRAVEL PROBLEMS ON SOME ROADS ESPECIALLY ALONG AND SOUTH OF I-70. REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. GUSTY WINDS ARE ALSO POSSIBLE. THIS COULD MAKE TRAVEL HAZARDOUS. $$ ENTREKIN
000 WWUS45 KBOU 131041 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 441 AM MDT FRI APR 13 2007 .A STRONG STORM SYSTEM ACROSS SOUTHERN ARIZONA WILL TRACK NORTHEAST TODAY INTO CENTRAL NEW MEXICO THIS AFTERNOON...AND THEN INTO KANSAS BY LATER TONIGHT. AS THE STORM MOVES NORTHEAST...SNOWFALL WILL BECOME MORE WIDESPREAD BY LATER THIS MORNING ACROSS THE PALMER DIVIDE REGION AND FAR EASTERN PLAINS OF COLORADO. COZ041-046-047-049-131845- /O.CON.KBOU.WS.W.0004.000000T0000Z-070414T0000Z/ 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- WASHINGTON COUNTY- INCLUDING...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR... AGATE...HUGO...LIMON...MATHESON...FORDER...KARVAL...KUTCH... PUNKIN CENTER...AKRON...COPE...LAST CHANCE...OTIS 441 AM MDT FRI APR 13 2007 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS AFTERNOON... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS AFTERNOON. AREAS OF LIGHT SNOW WILL BECOME MORE WIDESPREAD THIS MORNING...THEN SNOWFALL DIMINISHING BY THIS EVENING. ADDITIONAL SNOWFALL WILL RANGE FROM FROM 4 TO 7 INCHES BY TONIGHT. THERE WILL BE AREAS OF BLOWING AND DRIFTING SNOW LATER THIS AFTERNOON AS WINDS INCREASE FROM THE NORTHEAST AT 15 TO 25 MPH. THIS WILL CREATE TRAVEL PROBLEMS ON SOME ROADS ESPECIALLY ALONG AND SOUTH OF I-70 WITH REDUCED VISIBILITIES IN BLOWING SNOW. REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. GUSTY WINDS ARE ALSO POSSIBLE. THIS COULD MAKE TRAVEL HAZARDOUS. $$ ENTREKIN
000 WWUS45 KBOU 131725 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1125 AM MDT FRI APR 13 2007 COZ041-046-047-140000- /O.CAN.KBOU.WS.W.0004.000000T0000Z-070414T0000Z/ /O.NEW.KBOU.SN.Y.0008.070413T1725Z-070414T0000Z/ ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- INCLUDING...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR... AGATE...HUGO...LIMON...MATHESON...FORDER...KARVAL...KUTCH... PUNKIN CENTER 1125 AM MDT FRI APR 13 2007 ...SNOW ADVISORY IN EFFECT UNTIL 6 PM MDT THIS AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM MDT THIS AFTERNOON. THE WINTER STORM WARNING HAS BEEN CANCELLED. AREAS OF LIGHT SNOW WILL CONTINUE ALONG THE PALMER DIVIDE AND ACROSS LINCOLN COUNTY THIS AFTERNOON...THEN DECREASING BY THIS EVENING. ADDITIONAL SNOWFALL WILL RANGE FROM FROM 3 TO 5 INCHES BY TONIGHT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE SOME TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ COZ049-131830- /O.CAN.KBOU.WS.W.0004.000000T0000Z-070414T0000Z/ WASHINGTON COUNTY- INCLUDING...AKRON...COPE...LAST CHANCE...OTIS 1125 AM MDT FRI APR 13 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER STORM WARNING. LIGHT SNOW WILL CONTINUE THIS AFTERNOON...WITH ADDITIONAL OF UP TO 2 INCHES POSSIBLE. $$
000 WWUS45 KBOU 131738 CCA WSWBOU URGENT - WINTER WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE DENVER CO 1135 AM MDT FRI APR 13 2007 COZ041-046-047-140000- /O.CAN.KBOU.WS.W.0004.000000T0000Z-070414T0000Z/ /O.NEW.KBOU.SN.Y.0008.070413T1735Z-070414T0000Z/ ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- INCLUDING...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR... AGATE...HUGO...LIMON...MATHESON...FORDER...KARVAL...KUTCH... PUNKIN CENTER 1135 AM MDT FRI APR 13 2007 ...SNOW ADVISORY IN EFFECT UNTIL 6 PM MDT THIS AFTERNOON... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM MDT THIS AFTERNOON. THE WINTER STORM WARNING HAS BEEN CANCELLED. AREAS OF LIGHT SNOW WILL CONTINUE ALONG THE PALMER DIVIDE AND ACROSS LINCOLN COUNTY THIS AFTERNOON...THEN DECREASING BY THIS EVENING. ADDITIONAL SNOWFALL WILL RANGE FROM FROM 3 TO 5 INCHES BY TONIGHT. A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE SOME TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. $$ COZ049-131845- /O.COR.KBOU.WS.W.0004.000000T0000Z-070414T0000Z/ WASHINGTON COUNTY- INCLUDING...AKRON...COPE...LAST CHANCE...OTIS 1135 AM MDT FRI APR 13 2007 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER STORM WARNING. LIGHT SNOW WILL CONTINUE THIS AFTERNOON...WITH ADDITIONAL SNOW ACCUMULATIONS OF UP TO 2 INCHES POSSIBLE. $$
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 Apr 12, 3:30 AM MDT, 2 hours 8 minutes earlier.
Area forecast discussion, Apr 12, 3:30 AM MDT, 2 hours 8 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER CO 330 AM MDT THU APR 12 2007 .SHORT TERM...ALL EYES FOCUSING ON THE NEXT DEVELOPING WINTER STORM TAKING SHAPE ACROSS THE GREAT BASIN TODAY. THE MAIN LOW IS DEEPENING ACROSS OREGON AND NRN CA ATTM WHILE LEAD WAVE IS NOW ACROSS UTAH WHICH WILL SHIFT ACROSS OUR AREA TODAY. SURFACE HIGH PRESSURE STRETCHED ACROSS THE CENTRAL PLAINS WILL RESULT IN AN INCREASE IN SERLY WINDS TODAY...WHICH WILL ALSO INCREASE THE LOW LVL MSTR ACROSS EASTERN CO. NOT ALL THAT THRILLED WITH PRECIP CHANCES...ESP THIS AM AND INTO MID AFTERNOON SO TAILED BACK POPS SOMEWHAT. THE AIRMASS REALLY JUICES UP THIS EVENING AS MAIN LOW BEGINS TO CONSOLIDATE ACROSS NRN AZ THIS EVENING AS E-NE UPSLOPE FLOW DEEPENS UP TO AROUND 600MB. THE STRONGEST ASCENT WILL GO SOUTH OF OUR CWA...BUT SFC VERTICAL VELOCITY FIELDS SHOWING STRONG UPWARD ASCENT THRU LOW LEVELS BEGINNING TNT. FCST SOUNDINGS SHOW PRECIP TYPE MAY INITIALLY BE RAIN OR RAIN/SNOW MIX THRU EARLY THIS EVENING BECOMING ALL SNOW AFTER MIDNIGHT. THIS WILL MATCH WELL WITH CURRENT HIGHLITES. AFTER CONSULTING WITH SURROUNDING OFFICES HAVE OPTED TO GO TO A WINTER STORM WARNING FOR THE CURRENT WATCH OUTLINE FROM MIDNIGHT TNT THRU FRI...(SEE LONG TERM DISCUSSION BELOW FOR FRI DETAILS). THERE ARE STILL SOME REAL DIFFERENCES BETWEEN THE NAM AND GFS AS THE 00Z NAM HAD SHOWED 12+ INCHES OF SNOW ACROSS OUR NRN PERIPHERY WITH WYOMING AND NEBRASKA. THE 06Z NAM HAS BACKED OFF ON THE NRN SNOW MAXES BUT NOW SHOWS QUITE A BIT OF PRECIP EVEN THIS AFTN ACROSS THE ERN PLAINS...EAST OF THE DENVER AREA. THIS APPEARS TO BE DUE TO THE LEAD UPR WAVE EJECTING OUT OF UTAH BUT SEEMS OVERDONE. THE GFS IS MUCH DRIER IN THE LOW LVLS THIS AFTN AND OVERALL LIKE THE HANDLING OF THE GFS IN THE MSTR FIELDS FOR THIS EVENT. .LONG TERM...WAVE TRAIN ASSOCIATED AN UNUSUALLY STG PACIFIC JET STRETCHING ACROSS THE PACIFIC BTWN 30N-40N LATITUDE SOMEWHAT CHARACTERISTIC OF AN UPR AIR FLOW PATTERN OBSERVED DURING PREVIOUS EL NINO EPISODES. BUT WERE NOT IN ONE NOW. RIGHT? A SERIES OF ROSSBY WAVES EVENLY SPACED ACROSS CNTRL AND ERN PORTIONS OF THE NRN PACIFIC FCST TO MOVE ONTO THE WEST COAST NEXT 5-7 DAYS. THE FIRST OF THESE WAVES STILL ON TRACK TO CLOSE OFF AND MOVE ACROSS THE CNTRL AND SRN ROCKY MTN RGN ON FRIDAY. EWRD PROGRESS OF THE UPR TROUGH AND THE H5 LOW PRES VORTEX NOW SLOWER THAT BEFORE ACCORDING TO LATEST NAM AND GFS. NAM BEING THE SLOWER OF THE TWO MODELS. NAM HAS THE H5 VORTEX PASSING OVR THE E-CNTRL ARIZONA/W-CNTRL NEW MEXICO LINE AROUND 12Z/FRI. WHILE THE GFS HAS IT JUST WEST OF ALBUQUERQUE AT THE SAME TIME. FM THERE NAM MOVES THE H5 VORTEX STRAIGHT ACROSS CNTRL NEW MEXICO ALONG A PATH NOT AS FAR SOUTH AS WAS INDICATED BY ITS ERLIER RUNS. WHEREAS THE GFS LIFTS THE H5 LOW A BIT FASTER TO NEAR THE TEXAS/OKLAHOMA PANHANDLE AREA BY 18Z/FRI...AGAIN ALONG A PATH NOT AS FAR SOUTH AS WAS PROGGED EARLIER. THE CANADIAN GEM LOOKS A TAD SLOWER THAN THE NAM. THAT SAID...IT NOW APPEARS THAT THE HEAVIEST SNOWFALL WILL OCCUR FM 12Z-18Z FRI DURING STRONGEST QG ASCENT SFC-400MBS. NAM SHOWS THE GREATEST ACCUMS OVER THE NRN FRONT RANGE AND ALONG THE CHEYENNE RIDGE...PROBABLY IN RESPONSE TO A FAIRLY STRONG SELY SFC-600 MB FLOW ACRS THE PLAINS ERLY FRI MORNING. HOWEVER...PREFER THE GFS AND ITS HEAVIER SNOW ACCUMS FARTHER SOUTH IN A WIDE SWATH FM THE FRONT RANGE SW OF DENVER...EAST ALONG THE PALMER DIVIDE...AND OUT ACRS NWRN KS. THIS AREA ON THE NRN EDGE OF STRONGEST QG ASCENT RGN ALOFT. THEREFORE BASED ON THE GFS AND HPC GUIDANCE...WILL GO WITH THESE ADDITIONAL SNOW ACCUMS ON FRI: 5-10 INCHES OVER THE FRONT RANGE AND SOUTH PARK...8-14 INCHES ON THE PALMER DVD OUT ACROSS NRN LINCOLN CTY...3-6 INCHES ACROSS THE SRN URBAN CORRIDOR...4-8 INCHES ACROSS THE NERN CORNER OF THE STATE...AND 2-4 INCH ACCUMS ACRS THE NRN URBAN CORRIDOR AND ADJACENT CTYS ALONG THE WY BORDER. WEST OF THE CONTINENTAL DVD SNOW ACCUMS EXPECTED TO REMAIN BELOW SNOW ADVSY CRITERIA. SOUNDS LIKE A LOT OF SNOW...BUT WITH WARM SFC TEMPS AND DAYTIME TEMPS IN THE 30S SHOULD SEE A FAIR AMOUNT OF SNOW MELT AS IT FALLS. STG WINDS AND DRIFTING NOT EXPECTED TO BE A WIDE SPREAD CONCERN WITH THIS STORM. AS THE SFC/H5 LOWS LIFT NEWRD UP INTO SWRN KS ACCORDING TO THE GFS SHOULD SEE A DECREASE IN SNOWFALL OVER THE NRN URBAN CORRIDOR FRI AFTERNOON AS DRIER AIR BEGINS SURGING SOUTHWARD WITH A 1028MB SFC HIGH. SHOULD PRETTY MUCH SEE AN END TO MOST OF THE SNOWFALL BY FRI EVENING. SATURDAY AND BEYOND...THE UPR TROUGH MOVES OUT ON SAT WITH A POSITIVELY TILTED UPR RIDGE BUILDING OVERHEAD LATE IN THE DAY. TEMPS MAY BE SLOW TO RESPOND TO CLEARING SKIES ON SAT. HOWEVER BY SUNDAY SHOULD SEE DAYTIME READINGS BACK UP AROUND THE 60 DEG MARK EAST OMTNS WITH WARMING ALOFT AND WEAK DOWNSLOPE FLOW...EVEN WITH AN INCREASE IN MID AND HIGH LEVEL CLOUDS. CLOSE ON ITS HEELS IS THE NEXT UPPER WAVE COMING ONSHORE IN CALIFORNIA ON SUNDAY. MODELS IN GENERAL AGREEMENT AS THEY SHOW THIS WAVE CLOSING OFF AGAIN OVR THE SRN GREAT BASIN AND FROM THERE MOVING THE H5 LOW ALONG A SIMILAR TRACK AS THIS LATEST SYSTEM. WILL HAVE TO WATCH THIS ONE AS MODELS ARE ALREADY CRANKING OUT SOME PRETTY BIG SNOW ACCUMS FOR OUR AREA DURING THE MONDAY-TUESDAY TIME FRAME. CANT BELIEVE SOME OF THE NUMBERS IM SEEING BEING THAT FAR OUT. COULD ALSO SEE AN EXTENDED PD OF PCPN SHOULD THIS SYSTEM SLOW DOWN LIKE SOME OF THE MODELS SHOW. FOR NOW WILL MAKE FEW CHANGES TO ONGOING FCST OUT BEYOND MONDAY. && .BOU WATCHES/WARNINGS/ADVISORIES...WINTER STORM WARNING LATE TONIGHT THRU FRIDAY FOR THE FRONT RANGE...I-25 URBAN CORRIDOR...PALMER DIVIDE AND THE NERN PLAINS...CO ZNS 33>51. ENTREKIN/BAKER
Hazardous weather outlook, Apr 11, 11:10 AM MDT, 18 hours 28 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER CO 1110 AM MDT WED APR 11 2007 COZ030>051-121200- 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- 1110 AM MDT WED APR 11 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT SNOW SHOWERS IN THE MOUNTAINS WILL SLOWLY DIMINISH BY LATER THIS AFTERNOON BUT BEFORE THEN AN ADDITIONAL INCH OR TWO IS POSSIBLE MAINLY IN AREAS CLOSER TO THE DIVIDE. NORTHWEST WINDS OF 15 TO 30 MPH WITH GUSTS TO 40 TO 50 MPH WILL PREVAIL ABOVE TREELINE PRODUCING AREAS OF BLOWING SNOW. GUSTY WINDS WILL ALSO PREVAIL ALONG THE EASTERN SLOPES AND ONTO THE PLAINS THROUGH THIS AFTERNOON. ON THE EASTERN PLAINS NORTHWEST WINDS OF 15 TO 25 MPH WITH GUSTS OF 35 MPH WILL BE COMMON...ESPECIALLY EAST OF A LINE FROM GREELEY TO LIMON. A FEW LIGHT RAIN OR SNOW SHOWERS ARE ALSO POSSIBLE OVER THE FAR NORTHEAST PLAIN. CONDITIONS SHOULD QUIET DOWN OVERNIGHT EXCEPT FOR AN INCREASE IN CLOUDINESS IN THE MOUNTAINS WITH SOME LIGHT SNOW DEVELOPING TOWARDS DAYBREAK. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY SNOWFALL WILL INCREASE IN THE HIGH COUNTRY THURSDAY AFTERNOON BEFORE SPREADING INTO THE PLAINS AND FRONT RANGE THURSDAY EVENING. SNOW MAY BE HEAVY AT TIME EARLY FRIDAY MORNING...PARTICULARLY FOR THE FOOTHILLS AND ADJACENT AREAS OF THE FOOTHILLS SOUTH OF I-70. THESE AREAS MAY SEE SEVERAL INCHES OF SNOW ACCUMULATION BEFORE SNOWFALL ENDS FRIDAY NIGHT. COLD TEMPERATURES AND GUSTY WINDS ARE EXPECTED WITH THE STORM. A BRIEF WARMUP IS EXPECTED FOR THE WEEKEND BEFORE ANOTHER PACIFIC STORM SYSTEM MOVES INTO THE AREA FOR THE FIRST PART OF NEXT WEEK. THIS STORM WILL LIKELY BRING RAIN AND SNOW TO THE DISTRICT MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.
Nearby
Winter Storm Warnings in Colorado, 2007Every winter storm warning in 2007
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.