Alert archive / Colorado / Winter Storm Warnings in 2010
Winter Storm Warning 2, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Mar 18, 2010, 6:19 AM MDT for 16 counties in Colorado. It took effect at Mar 19, 2010, 12:00 AM MDT. It was in force for 24 hr. 60 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
- Mar 18, 2010, 6:19 AM MDT (12:19 UTC)
- In effect from
- Mar 19, 2010, 12:00 AM MDT
- Expired
- Mar 19, 2010, 11:56 PM MDT
- In force
- 24 hr
- Issued by
- NWS Denver/Boulder, CO
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, Park County, CO, Summit County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 59 km from the middle of the area, began a volume at 12:16 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 |
|---|---|---|---|
| Mar 19, 6:52 AM MDT | SNOW 1.1 | New Raymer, CO | |
| Mar 19, 6:52 AM MDT | SNOW 1.6 | Fort Collins, CO | |
| Mar 19, 6:52 AM MDT | SNOW 1.8 | Buckhorn Mountain, CO | |
| Mar 19, 6:52 AM MDT | SNOW 2 | Wellington, CO | |
| Mar 19, 7:00 AM MDT | SNOW 1.6 | Boulder, CO | |
| Mar 19, 7:00 AM MDT | SNOW 3 | 18 Nw Red Feather Lakes, CO | |
| Mar 19, 7:12 AM MDT | SNOW 5 | Estes Park, CO | |
| Mar 19, 7:35 AM MDT | SNOW 1.2 | Northglenn, CO | |
| Mar 19, 7:35 AM MDT | SNOW 5 | Evergreen, CO | |
| Mar 19, 7:52 AM MDT | SNOW 3 | 4 W Arvada, CO | |
| Mar 19, 7:57 AM MDT | SNOW 2.3 | Aspen Park, CO | |
| Mar 19, 8:01 AM MDT | SNOW 1.8 | 1 Nw Louviers, CO | |
| Mar 19, 8:01 AM MDT | SNOW 1.9 | 7 Nne Purcell, CO | |
| Mar 19, 8:01 AM MDT | HEAVY SNOW 6 | 4 Ene Nederland, CO | |
| Mar 19, 8:08 AM MDT | SNOW 3.2 | 4 Wnw Nunn, CO | |
| Mar 19, 8:25 AM MDT | SNOW 1.8 | 1 Ese Granby, CO | |
| Mar 19, 8:30 AM MDT | SNOW 2.5 | 3 E Highlands Ranch, CO | |
| Mar 19, 8:34 AM MDT | SNOW 4 | N Fairplay, CO | |
| Mar 19, 8:34 AM MDT | SNOW 5 | 2 Ene Bergen Park, CO | |
| Mar 19, 8:34 AM MDT | HEAVY SNOW 7.2 | 3 Nw Idledale, CO | |
| Mar 19, 8:50 AM MDT | SNOW 3.5 | Arvada, CO | |
| Mar 19, 8:52 AM MDT | SNOW 3.5 | Nnw Aspen Springs, CO | |
| Mar 19, 8:57 AM MDT | SNOW 3.5 | 3 W Conifer, CO | |
| Mar 19, 9:00 AM MDT | SNOW 4.1 | 2 S Boulder, CO | |
| Mar 19, 9:05 AM MDT | SNOW 3 | 1 Sw Westminster, CO | |
| Mar 19, 9:05 AM MDT | SNOW 4.8 | 3 N Conifer, CO | |
| Mar 19, 9:22 AM MDT | SNOW 2.8 | 3 Se Denver, CO | |
| Mar 19, 9:28 AM MDT | HEAVY SNOW 8 | 1 Sse St Marys Glacier, CO | |
| Mar 19, 9:34 AM MDT | HEAVY SNOW 9 | 3 Nw Idledale, CO | |
| Mar 19, 10:25 AM MDT | SNOW 4.3 | 1 Ssw Fort Collins, CO | |
| Mar 19, 10:27 AM MDT | HEAVY SNOW 9.7 | 3 Nw Idledale, CO | |
| Mar 19, 10:34 AM MDT | SNOW 5.5 | 3 W Conifer, CO | |
| Mar 19, 10:40 AM MDT | HEAVY SNOW 10 | 4 Wsw Eldorado Springs, CO | LOCATION IS CRESENT PARK |
| Mar 19, 10:52 AM MDT | SNOW 2.6 | 3 W Greeley, CO | |
| Mar 19, 10:52 AM MDT | SNOW 3 | 1 Nnw Centennial, CO | |
| Mar 19, 10:52 AM MDT | SNOW 4.5 | Nnw Aspen Springs, CO | |
| Mar 19, 10:54 AM MDT | HEAVY SNOW 8.5 | 3 W Jamestown, CO | |
| Mar 19, 11:00 AM MDT | HEAVY SNOW 6.1 | 2 S Boulder, CO | |
| Mar 19, 11:01 AM MDT | SNOW 4.2 | 1 Nnw Louisville, CO | |
| Mar 19, 11:07 AM MDT | SNOW 4.3 | Longmont, CO | |
| Mar 19, 11:32 AM MDT | HEAVY SNOW 10.7 | 3 Nw Idledale, CO | |
| Mar 19, 12:00 PM MDT | SNOW 5.3 | 2 N Longmont, CO | |
| Mar 19, 12:00 PM MDT | HEAVY SNOW 7.7 | 2 S Boulder, CO | |
| Mar 19, 12:00 PM MDT | HEAVY SNOW 7.7 | Boulder, CO | |
| Mar 19, 12:07 PM MDT | HEAVY SNOW 9.5 | 3 Ene Aspen Park, CO | |
| Mar 19, 12:17 PM MDT | HEAVY SNOW 9.1 | 12 Nw Golden, CO | |
| Mar 19, 12:25 PM MDT | SNOW 5 | 4 W Arvada, CO | |
| Mar 19, 12:25 PM MDT | HEAVY SNOW 11.5 | 4 Ene Nederland, CO | |
| Mar 19, 12:29 PM MDT | HEAVY SNOW 6.5 | Nnw Aspen Springs, CO | |
| Mar 19, 12:29 PM MDT | HEAVY SNOW 7 | 3 Wnw Littleton, CO | |
| Mar 19, 12:29 PM MDT | HEAVY SNOW 11.7 | 1 Sse St Marys Glacier, CO | |
| Mar 19, 12:29 PM MDT | HEAVY SNOW 12 | 3 Nw Idledale, CO | |
| Mar 19, 12:43 PM MDT | HEAVY SNOW 7.2 | 5 W Evergreen, CO | |
| Mar 19, 12:43 PM MDT | HEAVY SNOW 12 | 3 Nw Idledale, CO | |
| Mar 19, 1:00 PM MDT | HEAVY SNOW 9 | N Boulder, CO | |
| Mar 19, 1:01 PM MDT | HEAVY SNOW 6.1 | 1 Sw Westminster, CO | |
| Mar 19, 1:06 PM MDT | HEAVY SNOW 8.3 | 2 S Boulder, CO | DAVID SKAGGS RESEARCH BUILDING |
| Mar 19, 1:12 PM MDT | SNOW 3.7 | 2 Ne Thornton, CO | |
| Mar 19, 1:15 PM MDT | HEAVY SNOW 6 | Sw Arvada, CO | |
| Mar 19, 1:15 PM MDT | HEAVY SNOW 16 | 4 Wsw Eldorado Springs, CO | 2.4 INCHES PAST HOUR |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 0.3 hours before the alert went out and 170 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
- 4641 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
447 WWUS45 KBOU 181219 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 619 AM MDT THU MAR 18 2010 ...HEAVY SNOW AND VERY COLD TEMPERATURES IN STORE FOR MUCH OF NORTH CENTRAL AND NORTHEAST COLORADO... .A STORM SYSTEM ORGANIZING OVER THE NORTHERN ROCKY MOUNTAINS TODAY WILL SWING SOUTH ACROSS NORTHERN AND EASTERN COLORADO TONIGHT AND FRIDAY...BRINGING WITH IT A STRONG COLD FRONT. FOLLOWING THE PASSAGE OF THIS STRONG COLD FRONT THIS EVENING LOOK FOR SNOW AND GUSTY UPSLOPE WINDS TO DEVELOP ACROSS THE REGION. MODERATE TO HEAVY SNOWFALL CAN BE EXPECTED IN THE MOUNTAINS...THE FRONT RANGE FOOTHILLS AND ADJACENT HIGH PLAINS LATE TONIGHT AND FRIDAY WHERE SEVERAL INCHES OF ACCUMULATION ARE LIKELY BY FRIDAY EVENING. LIGHTER SNOW ACCUMULATIONS ARE POSSIBLE FURTHER OUT ACROSS THE NORTHEAST PLAINS. IN ADDITION...GUSTY NORTH TO NORTHEAST WINDS WILL ALSO PRODUCE AREAS OF BLOWING SNOW. PERSONS PLANNING TRAVEL OR ANY OTHER OUTDOOR ACTIVITIES LATE TONIGHT THROUGH FRIDAY EVENING SHOULD BE PREPARED FOR HARSH WINTER WEATHER CONDITIONS. COZ033>036-182030- /O.UPG.KBOU.WS.A.0001.100319T0600Z-100320T0600Z/ /O.NEW.KBOU.WS.W.0002.100319T0600Z-100320T0600Z/ 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- 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 619 AM MDT THU MAR 18 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW HEAVY AT TIMES...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW IS EXPECTED TO DEVELOP THIS EVENING...AND BECOME BE HEAVY AT TIMES BY LATE TONIGHT. SNOWFALL WILL CONTINUE HEAVY AT TIMES THROUGH FRIDAY EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 8 TO 15 INCHES ARE ANTICIPATED...WITH THE HEAVIEST AMOUNTS IN THE FRONT RANGE MOUNTAINS AND FOOTHILLS. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED. VISIBILITIES MAY BE REDUCED TO ONE QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. TRAVEL IN THE HIGH COUNTRY WILL BE HAZARDOUS TONIGHT THROUGH FRIDAY NIGHT...WITH MANY MOUNTAIN PASSES POSSIBLY REQUIRING CHAINS OR ADEQUATE SNOW TIRES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ038>041-182030- /O.UPG.KBOU.WS.A.0001.100319T0600Z-100320T0600Z/ /O.NEW.KBOU.WS.W.0002.100319T0600Z-100320T0600Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND... NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...AURORA... BRIGHTON...CITY OF DENVER...DENVER INTERNATIONAL AIRPORT... HIGHLANDS RANCH...LITTLETON...PARKER...CASTLE ROCK...ELBERT... FONDIS...KIOWA...LARKSPUR 619 AM MDT THU MAR 18 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW HEAVY AT TIMES...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW IS EXPECTED DEVELOP ALONG THE FRONT RANGE BY LATE THURSDAY EVENING...AND MAY BECOME HEAVY AT TIMES LATE TONIGHT AND FRIDAY. THE SNOW IS THEN EXPECTED TO DECREASE FRIDAY EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 6 TO 12 INCHES ARE LIKELY. NORTHEAST WINDS GUSTING UP TO 30 MPH WILL ALSO PRODUCE AREAS OF BLOWING SNOW. * MAIN IMPACT...ROADS...ESPECIALLY SECONDARY ROADS AND NEIGHBORHOOD STREETS...WILL LIKELY BECOME SNOW AND SLUSH COVERED BY EARLY FRIDAY MORNING. VISIBILITIES MAY ALSO BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ043-044-049-182030- /O.EXA.KBOU.WS.A.0001.100319T0600Z-100320T0600Z/ CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY-WASHINGTON COUNTY- INCLUDING THE CITIES OF...EATON...FORT LUPTON...GREELEY... ROGGEN...BRUSH...FORT MORGAN...GOODRICH...WIGGINS...AKRON... COPE...LAST CHANCE...OTIS 619 AM MDT THU MAR 18 2010 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING. * TIMING...SNOW IS EXPECTED TO DEVELOP BY LATE THIS EVENING...AND AND MAY BECOME HEAVY AT TIMES LATE TONIGHT AND FRIDAY. THE SNOW IS THEN EXPECTED TO DECREASE FRIDAY EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 4 TO 8 INCHES WILL BE POSSIBLE...WITH THE HEAVIEST SNOWFALL EXPECTED DURING THE DAY FRIDAY. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED. VISIBILITIES MAY BE SIGNIFICANTLY REDUCED AT TIMES DURING PERIODS OF HEAVY SNOWFALL. TRAVEL MAY BECOME HAZARDOUS LATE TONIGHT THROUGH FRIDAY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR A HAZARDOUS WINTER WEATHER EVENT IN AND CLOSE TO THE WATCH AREA. SIGNIFICANT SNOW ACCUMULATIONS MAY OCCUR THAT COULD IMPACT TRAVEL. STAY TUNED TO THE NATIONAL WEATHER SERVICE OR YOUR LOCAL NEWS MEDIA FOR THE LATEST UPDATES AND POSSIBLE WARNING CONCERNING THIS POTENTIAL WINTER STORM. && $$ COZ037-182030- /O.EXA.KBOU.WS.A.0001.100319T0600Z-100320T0600Z/ CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING THE CITIES OF...FAIRPLAY...HARTSEL...LAKE GEORGE... SOUTH PARK 619 AM MDT THU MAR 18 2010 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING. * TIMING...SNOW IS EXPECTED TO DEVELOP LATE THIS EVENING...AND MAY BE HEAVY AT TIMES THROUGH FRIDAY. THE SNOW IS THEN EXPECTED TO DECREASE FRIDAY EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 5 TO 10 INCHES WILL BE POSSIBLE...WITH THE HEAVIEST SNOWFALL EXPECTED DURING THE DAY FRIDAY. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED. VISIBILITIES MAY BE REDUCED TO ONE QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. TRAVEL IS EXPECTED TO BECOME HAZARDOUS THURSDAY NIGHT THROUGH FRIDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR A HAZARDOUS WINTER WEATHER EVENT IN AND CLOSE TO THE WATCH AREA. SIGNIFICANT SNOW ACCUMULATIONS MAY OCCUR THAT COULD IMPACT TRAVEL. STAY TUNED TO THE NATIONAL WEATHER SERVICE OR YOUR LOCAL NEWS MEDIA FOR THE LATEST UPDATES AND POSSIBLE WARNING CONCERNING THIS POTENTIAL WINTER STORM. && $$ COZ045-046-182030- /O.CON.KBOU.WS.A.0001.100319T0600Z-100320T0600Z/ CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF...BENNETT...BYERS...DEER TRAIL...LEADER... AGATE...HUGO...LIMON...MATHESON 619 AM MDT THU MAR 18 2010 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING... A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING. * TIMING...SNOW IS EXPECTED TO DEVELOP LATE THIS EVENING...AND MAY BECOME HEAVY AT TIMES THROUGH FRIDAY. THE SNOW IS THEN EXPECTED TO DECREASE FRIDAY EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 4 TO 8 INCHES WILL BE POSSIBLE. NORTHEAST WINDS GUSTING TO AROUND 35 MPH WILL ALSO PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. * MAIN IMPACT...ROADS AND HIGHWAYS WILL LIKELY BECOME SNOW AND SLUSH COVERED. VISIBILITIES MAY ALSO BE REDUCED DURING PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR A HAZARDOUS WINTER WEATHER EVENT IN AND CLOSE TO THE WATCH AREA. SIGNIFICANT SNOW ACCUMULATIONS MAY OCCUR THAT COULD IMPACT TRAVEL. STAY TUNED TO THE NATIONAL WEATHER SERVICE OR YOUR LOCAL NEWS MEDIA FOR THE LATEST UPDATES AND POSSIBLE WARNING CONCERNING THIS POTENTIAL WINTER STORM. && $$ COZ031-182030- /O.CON.KBOU.WS.A.0001.100319T0600Z-100320T0600Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 619 AM MDT THU MAR 18 2010 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING... A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY EVENING. * TIMING...SNOW IS EXPECTED TO DEVELOP THIS EVENING...AND MAY BECOME HEAVY AT TIMES THROUGH FRIDAY. THE SNOW IS THEN EXPECTED TO DECREASE FRIDAY EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 5 TO 10 INCHES WILL BE POSSIBLE. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED. VISIBILITIES MAY BE REDUCED TO ONE QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. TRAVEL IS EXPECTED TO BECOME HAZARDOUS TONIGHT THROUGH THE DAY FRIDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR A HAZARDOUS WINTER WEATHER EVENT IN AND CLOSE TO THE WATCH AREA. SIGNIFICANT SNOW ACCUMULATIONS MAY OCCUR THAT COULD IMPACT TRAVEL. STAY TUNED TO THE NATIONAL WEATHER SERVICE OR YOUR LOCAL NEWS MEDIA FOR THE LATEST UPDATES AND POSSIBLE WARNING CONCERNING THIS POTENTIAL WINTER STORM. && $$ BAKER
7 follow-up statements
992 WWUS45 KBOU 181855 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1255 PM MDT THU MAR 18 2010 ...HEAVY SNOW AND VERY COLD TEMPERATURES IN STORE FOR MUCH OF NORTH CENTRAL AND NORTHEAST COLORADO... .A STORM SYSTEM ORGANIZING OVER THE NORTHERN ROCKY MOUNTAINS THIS AFTERNOON WILL SWING SOUTH ACROSS NORTHERN AND EASTERN COLORADO TONIGHT AND FRIDAY. IN ADVANCE OF THIS SYSTEM...A COLD FRONT WILL DROP ACROSS NORTHEAST COLORADO THIS AFTERNOON... FOLLOWED BY ANOTHER REINFORCING SHOT OF COLDER AIR THIS EVENING. A MIX OF RAIN AND SNOW SHOWERS ARE EXPECTED TO DEVELOP THIS EVENING...AND THEN SPREAD QUICKLY SOUTHWARD ACROSS THE AREA BY MIDNIGHT TONIGHT AND TURN TO WIDESPREAD SNOW. THE SNOW WILL BE HEAVY AT TIMES ESPECIALLY IN AND NEAR THE FRONT RANGE MOUNTAINS AND FOOTHILLS WHERE SNOWFALL RATES IN EXCESS OF 1 INCH PER HOUR CAN BE EXPECTED. GENERALLY LIGHTER SNOW ACCUMULATIONS WILL OCCUR OVER THE NORTHEAST PLAINS OF COLORADO. HOWEVER...GUSTY WINDS OVER THE PLAINS ARE EXPECTED TO PRODUCE SOME BLOWING AND DRIFTING SNOW. PERSONS PLANNING TRAVEL OR ANY OTHER OUTDOOR ACTIVITIES LATE TONIGHT THROUGH FRIDAY EVENING SHOULD BE PREPARED FOR HARSH WINTER WEATHER CONDITIONS. COZ033>036-190500- /O.CON.KBOU.WS.W.0002.100319T0600Z-100320T0600Z/ 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- 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 1255 PM MDT THU MAR 18 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT. * TIMING...SNOW IS EXPECTED TO DEVELOP THIS EVENING...AND BECOME HEAVY AT TIMES AS THE SNOW SPREAD SOUTHWARD LATE THIS EVENING AND OVERNIGHT. SNOWFALL WILL REMAIN HEAVY AT TIMES THROUGH FRIDAY EVENING BEFORE GRADUALLY DIMINISHING FRIDAY NIGHT. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 10 TO 18 INCHES CAN BE EXPECTED...WITH LOCALLY UP TO 2 FEET POSSIBLE IN SOME FOOTHILLS LOCATIONS. SOMEWHAT LIGHTER ACCUMULATIONS WILL OCCUR IN THE VALLEYS OF SUMMIT COUNTY WITH AMOUNTS CLOSER TO 3 TO 8 INCHES. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED. VISIBILITIES MAY BE REDUCED TO ONE QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. TRAVEL IN THE HIGH COUNTRY WILL BE HAZARDOUS TONIGHT THROUGH FRIDAY NIGHT...WITH MANY MOUNTAIN PASSES LIKELY REQUIRING CHAINS OR ADEQUATE SNOW TIRES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ038>041-190500- /O.CON.KBOU.WS.W.0002.100319T0600Z-100320T0600Z/ 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- 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 1255 PM MDT THU MAR 18 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT. * TIMING...SCATTERED RAIN AND SNOW SHOWERS ARE FIRST EXPECTED TO DEVELOP ALONG THE WYOMING BORDER AREA EARLY THIS EVENING...AND THEN SPREAD SOUTHWARD AND TURN TO WIDESPREAD SNOW BY OR SHORTLY AFTER MIDNIGHT. HEAVY SNOW IS LIKELY DURING THE FRIDAY MORNING RUSH...WITH A GRADUAL DECREASE IN SNOW INTENSITY THROUGH THE AFTERNOON AND EVENING HOURS FRIDAY. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 6 TO 12 INCHES ARE LIKELY...WITH THE HEAVIEST AMOUNTS WEST OF I-25. NORTHEAST WINDS GUSTING UP TO 30 MPH WILL ALSO PRODUCE SOME MINOR BLOWING OR DRIFTING SNOW. * MAIN IMPACT...ROADS AND HIGHWAYS...EVEN MAJOR INTERSTATES...MAY BECOME SNOW AND SLUSH COVERED DURING PERIODS OF HEAVIER SNOWFALL. MANY SECONDARY ROADS AND NEIGHBORHOOD STREETS WILL BE SNOW AND ICE COVERED...ESPECIALLY AS TEMPERATURES CONTINUE TO FALL THROUGH THE DURATION OF THIS STORM. VISIBILITIES WILL ALSO BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ COZ043-044-049-190500- /O.UPG.KBOU.WS.A.0001.100319T0600Z-100320T0600Z/ /O.NEW.KBOU.WW.Y.0007.100319T0600Z-100320T0000Z/ CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY-WASHINGTON COUNTY- INCLUDING THE CITIES OF...EATON...FORT LUPTON...GREELEY... ROGGEN...BRUSH...FORT MORGAN...GOODRICH...WIGGINS...AKRON... COPE...LAST CHANCE...OTIS 1255 PM MDT THU MAR 18 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW IS EXPECTED TO DEVELOP BY LATE THIS EVENING... AND MAY BE HEAVY AT TIMES LATE TONIGHT AND FRIDAY MORNING. THE SNOW IS THEN EXPECTED TO GRADUALLY DECREASE FRIDAY AFTERNOON. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 3 TO 7 INCHES WILL BE POSSIBLE. NORTH WINDS OF 15 TO 20 MPH WITH GUSTS AROUND 30 MPH WILL PRODUCE SOME BLOWING AND DRIFTING SNOW. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED...ESPECIALLY DURING PERIODS OF HEAVIER SNOWFALL AND AS TEMPERATURES FALL THROUGH THE DURATION OF THIS STORM. VISIBILITIES MAY BE SIGNIFICANTLY REDUCED AT TIMES DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ045-046-190500- /O.UPG.KBOU.WS.A.0001.100319T0600Z-100320T0600Z/ /O.NEW.KBOU.WW.Y.0007.100319T0600Z-100320T0600Z/ CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF...BENNETT...BYERS...DEER TRAIL...LEADER... AGATE...HUGO...LIMON...MATHESON 1255 PM MDT THU MAR 18 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW IS EXPECTED TO DEVELOP SHORTLY AFTER MIDNIGHT TONIGHT...AND MAY BE HEAVY AT TIMES LATE TONIGHT AND FRIDAY. THE SNOW IS THEN EXPECTED TO GRADUALLY DECREASE FRIDAY EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES WILL BE POSSIBLE. NORTH WINDS OF 15 TO 25 MPH WITH GUSTS UP TO 35 MPH WILL PRODUCE SOME BLOWING AND DRIFTING SNOW. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED...ESPECIALLY DURING PERIODS OF HEAVIER SNOWFALL AND AS TEMPERATURES FALL THROUGH THE DURATION OF THIS STORM. VISIBILITIES MAY BE SIGNIFICANTLY REDUCED AT TIMES DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ031-037-190500- /O.UPG.KBOU.WS.A.0001.100319T0600Z-100320T0600Z/ /O.NEW.KBOU.WW.Y.0007.100319T0600Z-100320T0600Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...FAIRPLAY...HARTSEL...LAKE GEORGE...SOUTH PARK 1255 PM MDT THU MAR 18 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW IS EXPECTED TO DEVELOP ALONG THE WYOMING BORDER THIS EVENING...AND THEN SPREAD INTO PARK COUNTY LATE TONIGHT. THE SNOW MAY BE HEAVY AT TIMES INTO FRIDAY MORNING...AND THEN GRADUALLY DECREASE FRIDAY EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 5 TO 10 INCHES CAN BE EXPECTED. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED. VISIBILITIES MAY BE REDUCED TO ONE QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. TRAVEL IS EXPECTED TO BECOME HAZARDOUS TONIGHT THROUGH FRIDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ042-048-050-051-190500- /O.NEW.KBOU.WW.Y.0007.100319T0600Z-100320T0000Z/ NORTHEAST WELD COUNTY-LOGAN COUNTY-SEDGWICK COUNTY- PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...CROOK...MERINO...STERLING...PEETZ... JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 1255 PM MDT THU MAR 18 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY. * TIMING...SNOW IS EXPECTED TO DEVELOP BY LATE THIS EVENING...AND MAY BE HEAVY AT TIMES LATE TONIGHT INTO FRIDAY MORNING. THE SNOW IS THEN EXPECTED TO GRADUALLY DECREASE FRIDAY AFTERNOON. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES WILL BE POSSIBLE. NORTH WINDS OF 15 TO 20 MPH WITH GUSTS AROUND 30 MPH WILL PRODUCE SOME BLOWING AND DRIFTING SNOW. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED...ESPECIALLY DURING PERIODS OF HEAVIER SNOWFALL AND AS TEMPERATURES FALL THROUGH THE DURATION OF THIS STORM. VISIBILITIES MAY BE SIGNIFICANTLY REDUCED AT TIMES DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ SZOKE/BARJENBRUCH
022 WWUS45 KBOU 190246 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 846 PM MDT THU MAR 18 2010 ...HEAVY SNOW AND VERY COLD TEMPERATURES SET TO MOVE INTO NORTH CENTRAL AND NORTHEAST COLORADO... .A STORM SYSTEM ORGANIZING OVER WYOMING AND NORTHERN COLORADO TONIGHT WILL MOVE ACROSS THE REGION OVERNIGHT AND FRIDAY. RAIN AND SNOW SHOWERS ARE EXPECTED TO DEVELOP OVER THE MOUNTAINS AND NORTHERN PLAINS BY MIDNIGHT...AND THEN SPREAD QUICKLY SOUTHWARD ACROSS THE AREA OVERNIGHT. AREAS OF RAIN WILL QUICKLY CHANGE TO SNOW AS PRECIPITATION SPREADS ACROSS NORTHEAST COLORADO. THE SNOW WILL BE HEAVY AT TIMES BY SUNRISE...ESPECIALLY IN AND NEAR THE FRONT RANGE MOUNTAINS AND FOOTHILLS WHERE SNOWFALL RATES IN EXCESS OF 1 INCH PER HOUR CAN BE EXPECTED. GENERALLY LIGHTER SNOW ACCUMULATIONS WILL OCCUR OVER THE NORTHEAST PLAINS OF COLORADO. HOWEVER...GUSTY WINDS OVER THE PLAINS ARE EXPECTED TO PRODUCE SOME BLOWING AND DRIFTING SNOW. PERSONS PLANNING TRAVEL OR ANY OTHER OUTDOOR ACTIVITIES LATE TONIGHT THROUGH FRIDAY EVENING SHOULD BE PREPARED FOR HARSH WINTER WEATHER CONDITIONS. COZ033>036-191300- /O.CON.KBOU.WS.W.0002.100319T0600Z-100320T0600Z/ 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- 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 846 PM MDT THU MAR 18 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT. * TIMING...SNOW WILL DEVELOP BY MIDNIGHT...AND BECOME HEAVY AT TIMES AS THE SNOW SPREADS SOUTHWARD OVERNIGHT. SNOWFALL WILL REMAIN HEAVY AT TIMES THROUGH FRIDAY AFTERNOON BEFORE GRADUALLY DIMINISHING FRIDAY NIGHT. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 10 TO 18 INCHES CAN BE EXPECTED...WITH LOCALLY UP TO 2 FEET POSSIBLE IN SOME FOOTHILLS LOCATIONS. SOMEWHAT LIGHTER ACCUMULATIONS WILL OCCUR IN THE VALLEYS OF SUMMIT COUNTY WITH AMOUNTS CLOSER TO 3 TO 8 INCHES. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED. VISIBILITIES MAY BE REDUCED TO ONE QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. TRAVEL IN THE HIGH COUNTRY WILL BE HAZARDOUS TONIGHT THROUGH FRIDAY NIGHT...WITH MANY MOUNTAIN PASSES LIKELY REQUIRING CHAINS OR ADEQUATE SNOW TIRES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ038>041-191300- /O.CON.KBOU.WS.W.0002.100319T0600Z-100320T0600Z/ 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- 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 846 PM MDT THU MAR 18 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT. * TIMING...SCATTERED RAIN AND SNOW SHOWERS ARE FIRST EXPECTED TO DEVELOP ALONG THE WYOMING BORDER AREA BY 10 PM...AND THEN SPREAD SOUTHWARD AND TURN TO WIDESPREAD SNOW AFTER MIDNIGHT. HEAVY SNOW IS LIKELY DURING THE FRIDAY MORNING RUSH HOUR...WITH A GRADUAL DECREASE IN SNOW INTENSITY THROUGH THE AFTERNOON AND EVENING HOURS FRIDAY. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 6 TO 12 INCHES ARE LIKELY...WITH THE HEAVIEST AMOUNTS WEST OF I-25. NORTHEAST WINDS GUSTING UP TO 30 MPH WILL ALSO PRODUCE SOME MINOR BLOWING OR DRIFTING SNOW. * MAIN IMPACT...ROADS AND HIGHWAYS...EVEN MAJOR INTERSTATES... MAY BECOME SNOW AND SLUSH COVERED DURING PERIODS OF HEAVIER SNOWFALL. MANY SECONDARY ROADS AND NEIGHBORHOOD STREETS WILL BE SNOW AND ICE COVERED...ESPECIALLY AS TEMPERATURES CONTINUE TO FALL THROUGH THE DURATION OF THIS STORM. VISIBILITIES WILL ALSO BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ COZ042>044-048>051-191300- /O.CON.KBOU.WW.Y.0007.100319T0600Z-100320T0000Z/ NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...EATON...FORT LUPTON...GREELEY...ROGGEN... BRUSH...FORT MORGAN...GOODRICH...WIGGINS...CROOK...MERINO... STERLING...PEETZ...AKRON...COPE...LAST CHANCE...OTIS... JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 846 PM MDT THU MAR 18 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT FRIDAY. * TIMING...SNOW IS EXPECTED TO DEVELOP BY LATE THIS EVENING... AND MAY BE HEAVY AT TIMES FROM MIDNIGHT THROUGH FRIDAY MORNING. THE SNOW IS THEN EXPECTED TO GRADUALLY DECREASE FRIDAY AFTERNOON. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES WILL BE POSSIBLE. NORTH WINDS OF 15 TO 20 MPH WITH GUSTS AROUND 30 MPH WILL PRODUCE SOME BLOWING AND DRIFTING SNOW. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED... ESPECIALLY DURING PERIODS OF HEAVIER SNOWFALL AND AS TEMPERATURES FALL THROUGH THE DURATION OF THIS STORM. VISIBILITIES MAY BE SIGNIFICANTLY REDUCED AT TIMES DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ045-046-191300- /O.CON.KBOU.WW.Y.0007.100319T0600Z-100320T0600Z/ CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF...BENNETT...BYERS...DEER TRAIL...LEADER... AGATE...HUGO...LIMON...MATHESON 846 PM MDT THU MAR 18 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT. * TIMING...SNOW IS EXPECTED TO DEVELOP AFTER MIDNIGHT TONIGHT...AND MAY BE HEAVY AT TIMES THROUGH FRIDAY. THE SNOW IS THEN EXPECTED TO GRADUALLY DECREASE FRIDAY EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 4 TO 7 INCHES WILL BE POSSIBLE. NORTH WINDS OF 15 TO 25 MPH WITH GUSTS UP TO 35 MPH WILL PRODUCE SOME BLOWING AND DRIFTING SNOW. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED... ESPECIALLY DURING PERIODS OF HEAVIER SNOWFALL AND AS TEMPERATURES FALL THROUGH THE DURATION OF THIS STORM. VISIBILITIES MAY BE SIGNIFICANTLY REDUCED AT TIMES DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ031-037-191300- /O.CON.KBOU.WW.Y.0007.100319T0600Z-100320T0600Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...FAIRPLAY...HARTSEL...LAKE GEORGE...SOUTH PARK 846 PM MDT THU MAR 18 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT. * TIMING...SNOW IS EXPECTED TO DEVELOP ALONG THE WYOMING BORDER BY MIDNIGHT...AND THEN SPREAD INTO PARK COUNTY BY FRIDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES THROUGH FRIDAY MORNING...AND THEN GRADUALLY DECREASE FRIDAY EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 5 TO 10 INCHES CAN BE EXPECTED. * MAIN IMPACT...ROADS WILL BECOME ICY AND SNOW PACKED. VISIBILITIES MAY BE REDUCED TO ONE QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. TRAVEL IS EXPECTED TO BECOME HAZARDOUS TONIGHT THROUGH FRIDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
409 WWUS45 KBOU 191217 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 617 AM MDT FRI MAR 19 2010 COZ038-192030- /O.EXT.KBOU.WS.W.0002.000000T0000Z-100320T0000Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND... NUNN 617 AM MDT FRI MAR 19 2010 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR THE NORTHERN FRONT RANGE URBAN CORRIDOR... THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 6 PM MDT THIS EVENING. * TIMING...SNOWFALL WILL BE HEAVY AT TIMES IN THE MORNING AND EARLY AFTERNOON...WITH A GRADUAL DECREASE IN SNOWFALL LATE IN THE AFTERNOON AND EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 5 TO 10 INCHES ARE LIKELY...WITH THE GREATER TOTALS WEST OF I-25. NORTHEAST WINDS GUSTING UP TO 30 MPH WILL ALSO PRODUCE AREAS OF BLOWING SNOW MAINLY EAST OF I-25. * MAIN IMPACT...ROADS AND HIGHWAYS...EVEN MAJOR INTERSTATES...MAY BECOME SLUSHY OR SNOW COVERED DURING PERIODS OF HEAVIER SNOWFALL. VISIBILITIES WILL ALSO BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ COZ033>036-192030- /O.CON.KBOU.WS.W.0002.000000T0000Z-100320T0600Z/ 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- 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 617 AM MDT FRI MAR 19 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR THE NORTH CENTRAL MOUNTAINS AND FRONT RANGE FOOTHILLS... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...SNOW WILL BE HEAVY AT TIMES TODAY THROUGH EARLY THIS EVENING...WITH THE HEAVIEST SNOWFALL THIS MORNING AND EARLY IN THE AFTERNOON. SNOWFALL WILL GRADUALLY DIMINISH FROM NORTH TO SOUTH OVERNIGHT TONIGHT. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 10 TO 20 INCHES CAN BE EXPECTED...WITH THE GREATER TOTALS IN THE FRONT RANGE FOOTHILLS AND EAST FACING MOUNTAIN SLOPES. * MAIN IMPACT...ROADS AND HIGHWAYS...INCLUDING INTERSTATE 70...WILL BECOME ICY...SLUSHY AND EVEN SNOW PACKED. VISIBILITIES MAY BE REDUCED TO ONE QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. TRAVELERS SHOULD BE AWARE THAT MANY MOUNTAIN PASSES MAY REQUIRE CHAINS OR ADEQUATE SNOW TIRES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ039>041-192030- /O.CON.KBOU.WS.W.0002.000000T0000Z-100320T0600Z/ BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR 617 AM MDT FRI MAR 19 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR SOUTHERN PORTIONS OF THE FRONT RANGE URBAN CORRIDOR... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...SNOWFALL WILL BE HEAVY AT TIMES TODAY...WITH A HEAVIEST SNOWFALL EXPECTED IN THE MORNING AND EARLY THIS AFTERNOON. A GRADUAL DECREASE IN SNOWFALL IS EXPECTED THIS EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 7 TO 14 INCHES ARE LIKELY...WITH THE GREATER TOTALS WEST OF I-25. NORTHEAST WINDS GUSTING UP TO 25 MPH WILL ALSO PRODUCE SOME BLOWING SNOW MAINLY IN AREAS EAST OF I-25. * MAIN IMPACT...ROADS AND HIGHWAYS...EVEN MAJOR INTERSTATES...MAY BECOME SLUSHY AND EVEN SNOW COVERED DURING PERIODS OF HEAVIER SNOWFALL. VISIBILITIES WILL ALSO BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ COZ042>044-048>051-192030- /O.CON.KBOU.WW.Y.0007.000000T0000Z-100320T0000Z/ NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...EATON...FORT LUPTON...GREELEY...ROGGEN... BRUSH...FORT MORGAN...GOODRICH...WIGGINS...CROOK...MERINO... STERLING...PEETZ...AKRON...COPE...LAST CHANCE...OTIS... JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 617 AM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR THE NORTHEAST PLAINS OF COLORADO... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING. * TIMING...SNOW WILL CONTINUE THROUGH EARLY IN THE AFTERNOON... THEN GRADUALLY DECREASE LATE IN THE AFTERNOON AND THIS EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES ARE LIKELY BY EARLY THIS EVENING. NORTH WINDS OF 15 TO 20 MPH WITH GUSTS AROUND 30 MPH WILL ALSO PRODUCE SOME BLOWING SNOW. * MAIN IMPACT...ROADS WILL BECOME SLUSHY AND POSSIBLY SNOW COVERED...ESPECIALLY DURING PERIODS OF HEAVIER SNOWFALL IN THE MORNING. VISIBILITIES MAY ALSO BECOME SIGNIFICANTLY REDUCED AT TIMES DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ045-046-192030- /O.CON.KBOU.WW.Y.0007.000000T0000Z-100320T0600Z/ CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF...BENNETT...BYERS...DEER TRAIL...LEADER... AGATE...HUGO...LIMON...MATHESON 617 AM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR EASTERN ADAMS AND ARAPAHOE...EASTERN ELBERT AND NORTHERN LINCOLN COUNTIES... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...SNOW TODAY...POSSIBLY HEAVY AT TIMES IN THE MORNING AND EARLY AFTERNOON. SNOWFALL IS EXPECTED TO GRADUALLY DECREASE LATE IN THE AFTERNOON AND THIS EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES WITH UPWARDS OF 8 INCHES ACROSS EASTERN ELBERT AND NORTHERN LINCOLN COUNTIES. NORTH WINDS OF 15 TO 25 MPH AND GUSTS UP TO 35 MPH WILL PRODUCE AREAS OF BLOWING SNOW LATER TODAY. * MAIN IMPACT...ROADS AND HIGHWAYS WILL BECOME SHUSHY AND POSSIBLY SNOW COVERED...ESPECIALLY DURING PERIODS OF HEAVY SNOWFALL. VISIBILITIES MAY ALSO BE SIGNIFICANTLY REDUCED AT TIMES DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ031-037-192030- /O.CON.KBOU.WW.Y.0007.000000T0000Z-100320T0600Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...FAIRPLAY...HARTSEL...LAKE GEORGE...SOUTH PARK 617 AM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR THE NORTHERN MOUNTAINS AND SOUTH PARK... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...SNOW POSSIBLY HEAVY AT TIMES TODAY. SNOWFALL IS EXPECTED TO DECREASE LATE THIS AFTERNOON IN THE NORTHERN MOUNTAINS AND DURING THIS EVENING ACROSS SOUTH PARK. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 4 TO 10 INCHES CAN BE EXPECTED. * MAIN IMPACT...ROADS WILL BE ICY...SLUSHY AND POSSIBLY SNOW COVERED. VISIBILITIES MAY ALSO REDUCED TO A QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ BAKER
290 WWUS45 KBOU 191923 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 123 PM MDT FRI MAR 19 2010 ...WINTER STORM CONTINUES THIS AFTERNOON... .AN UPPER LEVEL LOW OVER WEST CENTRAL COLORADO IS SLOWLY MOVING SOUTHEASTWARD AND WILL CONTINUE TO BRING SNOW TO THE AREA THROUGH THE AFTERNOON AND INTO THIS EVENING. THE HEAVIEST OF THE SNOW HAS SHIFTED TO IN AND NEAR THE FRONT RANGE FOOTHILLS. IN THESE AREAS SNOW COULD BE HEAVY AT TIMES INTO EARLY THIS EVENING. OTHERWISE THE STORM WILL GRADUALLY BE ENDING ACROSS THE PLAINS FROM NORTH TO SOUTH DURING THE AFTERNOON. COZ033>036-200330- /O.CON.KBOU.WS.W.0002.000000T0000Z-100320T0600Z/ 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- 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 123 PM MDT FRI MAR 19 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...SNOW WILL CONTINUE THROUGH EARLY THIS EVENING...WITH THE HEAVIEST SNOWFALL EAST OF THE CONTINENTAL DIVIDE. SNOWFALL WILL GRADUALLY DIMINISH FROM NORTH TO SOUTH OVERNIGHT TONIGHT. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS WILL VARY ACROSS THE AREA WITH THE HEAVIEST SNOWFALL OF 14 TO 22 INCHES EAST OF THE DIVIDE IN THE FRONT RANGE FOOTHILLS AND ALONG EAST FACING MOUNTAIN SLOPES WHERE SNOWFALL RATES OF 2 INCHES PER HOUR WILL BE POSSIBLE AT TIMES. MUCH LESS SNOW WILL FALL IN OTHER MOUNTAIN AREAS WEST OF THE CONTINENTAL DIVIDE WITH TOTALS RANGING FROM AS LITTLE AS 4 INCHES IN LOWER AREAS TO AROUND 6 TO 10 INCHES OVER HIGHER ELEVATIONS. * MAIN IMPACT...ROADS AND HIGHWAYS...INCLUDING INTERSTATE 70... WILL BECOME ICY...SLUSHY AND EVEN SNOW PACKED IN THE AREAS OF HEAVIER SNOW. VISIBILITIES MAY BE REDUCED TO ONE QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. TRAVELERS SHOULD BE AWARE THAT MOUNTAIN PASSES MAY REQUIRE CHAINS OR ADEQUATE SNOW TIRES AS WELL AS I-70 IN THE FOOTHILLS WEST OF DENVER. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ039>041-200330- /O.CON.KBOU.WS.W.0002.000000T0000Z-100320T0600Z/ 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 123 PM MDT FRI MAR 19 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...SNOWFALL WILL BE MODERATE TO HEAVY AT TIMES TODAY...WITH THE HEAVIEST SNOWFALL CLOSER TO THE FOOTHILLS THIS AFTERNOON. A GRADUAL DECREASE IN SNOWFALL IS EXPECTED BY MID TO LATE AFTERNOON NEAR THE WYOMING BORDER AND THIS WILL BE MOVING SOUTHWARD DURING THE EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS WILL RANGE FROM ONLY A FEW INCHES EAST OF I-25 IN AREAS NEAR DIA TO 5 TO 10 INCHES ACROSS DENVER...INCREASING TO 7 TO 14 INCHES CLOSER TO THE FOOTHILLS IN PLACES SUCH AS GOLDEN AND BOULDER. NORTHEAST WINDS GUSTING UP TO 25 MPH WILL ALSO PRODUCE SOME BLOWING SNOW IN AREAS NEAR AND EAST OF I-25. * MAIN IMPACT...ROADS AND HIGHWAYS...EVEN MAJOR INTERSTATES...MAY BECOME SLUSHY DURING PERIODS OF HEAVIER SNOWFALL BUT OTHERWISE MOST MAIN ROADS WILL BE JUST WET. SECONDARY ROADS COULD BE SLUSHY AND IN AREAS CLOSER TO THE FOOTHILLS SNOW PACKED AT TIMES. VISIBILITIES WILL ALSO BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ COZ038-200000- /O.CON.KBOU.WS.W.0002.000000T0000Z-100320T0000Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND... NUNN 123 PM MDT FRI MAR 19 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING. * TIMING...SNOWFALL WILL CONTINUE TO GRADUALLY DECREASE THIS AFTERNOON BUT THERE WILL BE PERIODS OF MODERATE SNOW INTO MID- AFTERNOON. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 4 TO 10 INCHES ARE LIKELY...WITH THE GREATER TOTALS WEST OF I-25. NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WILL ALSO PRODUCE SOME AREAS OF BLOWING SNOW MAINLY EAST OF I-25. * MAIN IMPACT...MOST MAIN ROADS WILL BE MAINLY WET ALTHOUGH THEY MAY BECOME SLUSHY OR SNOW COVERED DURING PERIODS OF MODERATE SNOWFALL AND IN AREAS OF STRONGER WINDS...WITH AREAS OF REDUCED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ COZ042>044-048>051-200000- /O.CON.KBOU.WW.Y.0007.000000T0000Z-100320T0000Z/ NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...EATON...FORT LUPTON...GREELEY...ROGGEN... BRUSH...FORT MORGAN...GOODRICH...WIGGINS...CROOK...MERINO... STERLING...PEETZ...AKRON...COPE...LAST CHANCE...OTIS... JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 123 PM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING. * TIMING...MAINLY LIGHT SNOW WILL CONTINUE THROUGH EARLY AFTERNOON... THEN GRADUALLY DECREASE LATE IN THE AFTERNOON AND THIS EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES ARE LIKELY BY EARLY THIS EVENING. NORTH WINDS OF 15 TO 25 MPH WITH GUSTS AROUND 30 MPH WILL ALSO PRODUCE SOME BLOWING SNOW. * MAIN IMPACT...ROADS WILL MOSTLY BE WET BUT COULD BECOME SLUSHY AND POSSIBLY SNOW COVERED IN SOME AREAS. VISIBILITIES WILL BE REDUCED AT TIMES IN AREAS OF BLOWING SNOW AND TIMES OF MODERATE SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ045-046-200330- /O.CON.KBOU.WW.Y.0007.000000T0000Z-100320T0600Z/ CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF...BENNETT...BYERS...DEER TRAIL...LEADER... AGATE...HUGO...LIMON...MATHESON 123 PM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...LIGHT SNOW WILL CONTINUE THIS AFTERNOON WITH SOME PERIODS OF MODERATE SNOW. SNOWFALL IS EXPECTED TO GRADUALLY DECREASE LATE IN THE AFTERNOON AND THIS EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 3 TO AS MUCH AS 6 INCHES WILL OCCUR. NORTH WINDS OF 15 TO 25 MPH AND GUSTS UP TO 30 MPH WILL PRODUCE AREAS OF BLOWING SNOW. * MAIN IMPACT...ROADS AND HIGHWAYS WILL MAINLY BE WET BUT THERE WILL BE SLUSHY AND POSSIBLY SNOW COVERED AREAS...ESPECIALLY DURING PERIODS OF MODERATE SNOWFALL. VISIBILITIES WILL BE REDUCED IN AREAS OF BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ031-037-200330- /O.CON.KBOU.WW.Y.0007.000000T0000Z-100320T0600Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...FAIRPLAY...HARTSEL...LAKE GEORGE...SOUTH PARK 123 PM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...OCCASIONAL MAINLY LIGHT SNOW WILL PREVAIL IN THE NORTHERN MOUNTAINS. ACROSS SOUTH PARK SNOW MAY BE MODERATE TO HEAVY AT TIMES THIS AFTERNOON INTO EARLY THIS EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 4 TO 10 INCHES CAN BE EXPECTED. * MAIN IMPACT...ROADS WILL BE ICY...SLUSHY AND POSSIBLY SNOW COVERED. VISIBILITIES MAY ALSO REDUCED TO A QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
359 WWUS45 KBOU 192131 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 331 PM MDT FRI MAR 19 2010 ...WINTER STORM CONTINUES... .AN UPPER LEVEL LOW OVER WEST CENTRAL COLORADO IS SLOWLY MOVING SOUTHEASTWARD AND WILL CONTINUE TO BRING SNOW TO THE AREA THROUGH THIS EVENING. THE HEAVIEST OF THE SNOW HAS SHIFTED TO LOCATIONS IN AND NEAR THE FRONT RANGE FOOTHILLS...MAINLY FROM BOULDER COUNTY SOUTHWARD. IN THESE AREAS SNOW COULD BE HEAVY AT TIMES INTO EARLY THIS EVENING. COZ038-192245- /O.CAN.KBOU.WS.W.0002.000000T0000Z-100320T0000Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND... NUNN 331 PM MDT FRI MAR 19 2010 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER STORM WARNING. THE HEAVIEST SNOWFALL ASSOCIATED WITH THIS SYSTEM HAS MOVED TO THE SOUTH THEREFORE THE WINTER STORM WARNING HAS BEEN CANCELLED. $$ COZ033>036-200545- /O.CON.KBOU.WS.W.0002.000000T0000Z-100320T0600Z/ 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- 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 331 PM MDT FRI MAR 19 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...SNOW WILL CONTINUE THROUGH EARLY THIS EVENING...WITH THE HEAVIEST SNOWFALL EAST OF THE CONTINENTAL DIVIDE. SNOWFALL WILL GRADUALLY DIMINISH FROM NORTH TO SOUTH OVERNIGHT TONIGHT. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS WILL VARY ACROSS THE AREA WITH THE HEAVIEST SNOWFALL OF 14 TO 22 INCHES EAST OF THE DIVIDE IN THE FRONT RANGE FOOTHILLS AND ALONG EAST FACING MOUNTAIN SLOPES WHERE SNOWFALL RATES OF 2 INCHES PER HOUR WILL BE POSSIBLE AT TIMES. MUCH LESS SNOW WILL FALL IN OTHER MOUNTAIN AREAS WEST OF THE CONTINENTAL DIVIDE WITH TOTALS RANGING FROM AS LITTLE AS 4 INCHES IN LOWER AREAS TO AROUND 6 TO 10 INCHES OVER HIGHER ELEVATIONS. * MAIN IMPACT...ROADS AND HIGHWAYS...INCLUDING INTERSTATE 70... WILL BECOME ICY...SLUSHY AND EVEN SNOW PACKED IN THE AREAS OF HEAVIER SNOW. VISIBILITIES MAY BE REDUCED TO ONE QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. TRAVELERS SHOULD BE AWARE THAT MOUNTAIN PASSES MAY REQUIRE CHAINS OR ADEQUATE SNOW TIRES AS WELL AS I-70 IN THE FOOTHILLS WEST OF DENVER. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ039>041-200545- /O.CON.KBOU.WS.W.0002.000000T0000Z-100320T0600Z/ BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR 331 PM MDT FRI MAR 19 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...SNOWFALL WILL BE MODERATE TO HEAVY AT TIMES...WITH THE HEAVIEST SNOWFALL CLOSER TO THE FOOTHILLS THROUGH EARLY THIS EVENING. A GRADUAL DECREASE IN SNOWFALL WILL OCCUR FROM NORTH TO SOUTH THE REMAINDER OF THE EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS WILL RANGE FROM ONLY A FEW INCHES EAST OF I-25 IN AREAS NEAR DIA TO 5 TO 10 INCHES ACROSS DENVER...INCREASING TO 7 TO 14 INCHES CLOSER TO THE FOOTHILLS IN PLACES SUCH AS GOLDEN AND BOULDER. NORTHEAST WINDS GUSTING UP TO 25 MPH WILL ALSO PRODUCE SOME BLOWING SNOW IN AREAS NEAR AND EAST OF I-25. * MAIN IMPACT...ROADS AND HIGHWAYS...EVEN MAJOR INTERSTATES... MAY BECOME SLUSHY DURING PERIODS OF HEAVIER SNOWFALL BUT OTHERWISE MOST MAIN ROADS WILL BE JUST WET. SECONDARY ROADS COULD BE SLUSHY AND IN AREAS CLOSER TO THE FOOTHILLS SNOW PACKED AT TIMES. VISIBILITIES WILL ALSO BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ COZ042>044-048>051-200000- /O.CON.KBOU.WW.Y.0007.000000T0000Z-100320T0000Z/ NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...EATON...FORT LUPTON...GREELEY...ROGGEN... BRUSH...FORT MORGAN...GOODRICH...WIGGINS...CROOK...MERINO... STERLING...PEETZ...AKRON...COPE...LAST CHANCE...OTIS... JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 331 PM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING. * TIMING...LIGHT SNOW WILL LINGER THROUGH THE REST OF THE AFTERNOON...MAINLY SOUTH OF INTERSTATE 76. THE SNOW IS EXPECTED TO DIMINISH THIS EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES ARE LIKELY BY EARLY THIS EVENING. NORTH WINDS OF 15 TO 25 MPH WITH GUSTS AROUND 30 MPH WILL ALSO PRODUCE SOME BLOWING SNOW. * MAIN IMPACT...ROADS WILL MOSTLY BE WET BUT COULD BECOME SLUSHY AND POSSIBLY SNOW COVERED IN SOME AREAS. VISIBILITIES WILL BE REDUCED AT TIMES IN AREAS OF BLOWING SNOW AND TIMES OF MODERATE SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ045-046-200545- /O.CON.KBOU.WW.Y.0007.000000T0000Z-100320T0600Z/ CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF...BENNETT...BYERS...DEER TRAIL...LEADER... AGATE...HUGO...LIMON...MATHESON 331 PM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...LIGHT SNOW WILL CONTINUE...WITH SOME PERIODS OF MODERATE SNOW THROUGH THIS EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES WILL OCCUR. NORTH WINDS OF 15 TO 25 MPH AND GUSTS UP TO 30 MPH WILL PRODUCE AREAS OF BLOWING SNOW. * MAIN IMPACT...ROADS AND HIGHWAYS WILL MAINLY BE WET BUT THERE WILL BE SLUSHY AND POSSIBLY SNOW COVERED AREAS...ESPECIALLY DURING PERIODS OF MODERATE SNOWFALL. VISIBILITIES WILL BE REDUCED IN AREAS OF BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ031-037-200545- /O.CON.KBOU.WW.Y.0007.000000T0000Z-100320T0600Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...FAIRPLAY...HARTSEL...LAKE GEORGE...SOUTH PARK 331 PM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...OCCASIONAL MAINLY LIGHT SNOW WILL PREVAIL IN THE NORTHERN MOUNTAINS. IN SOUTH PARK...OCCASIONAL MODERATE PERIODS OF SNOWFALL ARE POSSIBLE THROUGH THIS EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 4 TO 10 INCHES CAN BE EXPECTED. * MAIN IMPACT...ROADS WILL BE ICY...SLUSHY AND POSSIBLY SNOW COVERED. VISIBILITIES MAY ALSO REDUCED TO A QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
823 WWUS45 KBOU 200010 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 610 PM MDT FRI MAR 19 2010 ...WINTER STORM STARTING TO MOVE OUT... .AN UPPER LEVEL LOW OVER WEST CENTRAL COLORADO IS SLOWLY MOVING SOUTHEASTWARD. AS A RESULT...THE SNOW WILL BE DECREASING FROM NORTH TO SOUTH ACROSS THE REGION. LIGHT TO MODERATE SNOW HOWEVER IS EXPECTED TO CONTINUE IN AND NEAR THE PALMER RIDGE AND SOUTHERN FRONT RANGE FOOTHILLS THROUGH THIS EVENING. COZ033>035-200115- /O.CAN.KBOU.WS.W.0002.000000T0000Z-100320T0600Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK...ESTES PARK...GLENDEVEY... NEDERLAND...RED FEATHER LAKES 610 PM MDT FRI MAR 19 2010 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER STORM WARNING. SCATTERED SNOW SHOWERS WILL CONTINUE BUT NO FURTHER ACCUMULATION IS EXPECTED. $$ COZ031-037-200115- /O.CAN.KBOU.WW.Y.0007.000000T0000Z-100320T0600Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- CENTRAL AND SOUTHEAST PARK COUNTY- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...FAIRPLAY...HARTSEL...LAKE GEORGE...SOUTH PARK 610 PM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. SCATTERED SNOW SHOWERS WILL CONTINUE BUT NO FURTHER ACCUMULATION IS EXPECTED. $$ COZ042>044-048>051-200115- /O.EXP.KBOU.WW.Y.0007.000000T0000Z-100320T0000Z/ NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...EATON...FORT LUPTON...GREELEY...ROGGEN... BRUSH...FORT MORGAN...GOODRICH...WIGGINS...CROOK...MERINO... STERLING...PEETZ...AKRON...COPE...LAST CHANCE...OTIS... JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 610 PM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY HAS EXPIRED... THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. $$ COZ036-200600- /O.CON.KBOU.WS.W.0002.000000T0000Z-100320T0600Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK 610 PM MDT FRI MAR 19 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...SNOW WILL CONTINUE THROUGH EARLY THIS EVENING...WITH THE HEAVIEST SNOWFALL EAST OF THE CONTINENTAL DIVIDE. SNOWFALL WILL GRADUALLY DIMINISH FROM NORTH TO SOUTH LATER THIS EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS WILL VARY ACROSS THE AREA WITH THE HEAVIEST SNOWFALL OF 14 TO 24 INCHES EAST OF THE DIVIDE IN THE FRONT RANGE FOOTHILLS AND ALONG EAST FACING MOUNTAIN SLOPES. * MAIN IMPACT...ROADS AND HIGHWAYS...INCLUDING INTERSTATE 70... WILL BECOME ICY...SLUSHY AND EVEN SNOW PACKED IN THE AREAS OF HEAVIER SNOW. VISIBILITIES MAY BE REDUCED TO ONE QUARTER MILE OR LESS DURING PERIODS OF HEAVY SNOWFALL. TRAVELERS SHOULD BE AWARE THAT MOUNTAIN PASSES MAY REQUIRE CHAINS OR ADEQUATE SNOW TIRES AS WELL AS I-70 IN THE FOOTHILLS WEST OF DENVER. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ039>041-200600- /O.CON.KBOU.WS.W.0002.000000T0000Z-100320T0600Z/ BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR 610 PM MDT FRI MAR 19 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...SNOWFALL WILL BE MODERATE TO HEAVY AT TIMES...WITH THE HEAVIEST SNOWFALL CLOSER TO THE FOOTHILLS THROUGH EARLY THIS EVENING. A GRADUAL DECREASE IN SNOWFALL WILL OCCUR FROM NORTH TO SOUTH THE REMAINDER OF THE EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS WILL RANGE FROM ONLY A FEW INCHES EAST OF I-25 IN AREAS NEAR DIA TO 5 TO 10 INCHES ACROSS DENVER.. NORTHEAST WINDS GUSTING UP TO 25 MPH WILL ALSO PRODUCE SOME BLOWING SNOW IN AREAS NEAR AND EAST OF I-25. * MAIN IMPACT...ROADS AND HIGHWAYS...EVEN MAJOR INTERSTATES... MAY BECOME SLUSHY DURING PERIODS OF HEAVIER SNOWFALL BUT OTHERWISE MOST MAIN ROADS WILL BE JUST WET. SECONDARY ROADS COULD BE SLUSHY AND IN AREAS CLOSER TO THE FOOTHILLS SNOW PACKED AT TIMES. VISIBILITIES WILL ALSO BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVY SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WARNING MEANS HAZARDOUS WINTER WEATHER CONDITIONS ARE IMMINENT OR HIGHLY LIKELY. SIGNIFICANT SNOW ACCUMULATIONS ARE OCCURRING OR EXPECTED. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ COZ045-046-200600- /O.CON.KBOU.WW.Y.0007.000000T0000Z-100320T0600Z/ CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF...BENNETT...BYERS...DEER TRAIL...LEADER... AGATE...HUGO...LIMON...MATHESON 610 PM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * TIMING...LIGHT SNOW WILL CONTINUE...WITH SOME PERIODS OF MODERATE SNOW THROUGH THIS EVENING. * ACCUMULATION/WIND...TOTAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES WILL OCCUR. NORTH WINDS OF 15 TO 25 MPH AND GUSTS UP TO 30 MPH WILL PRODUCE AREAS OF BLOWING SNOW. * MAIN IMPACT...ROADS AND HIGHWAYS WILL MAINLY BE WET BUT THERE WILL BE SLUSHY AND POSSIBLY SNOW COVERED AREAS...ESPECIALLY DURING PERIODS OF MODERATE SNOWFALL. VISIBILITIES WILL BE REDUCED IN AREAS OF BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT SNOW...BLOWING SNOW...OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
582 WWUS45 KBOU 200556 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1156 PM MDT FRI MAR 19 2010 COZ036-039>041-200700- /O.CAN.KBOU.WS.W.0002.000000T0000Z-100320T0600Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK...ARVADA...BOULDER... GOLDEN...LAKEWOOD...LONGMONT...AURORA...BRIGHTON... CITY OF DENVER...DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH... LITTLETON...PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA... LARKSPUR 1156 PM MDT FRI MAR 19 2010 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER STORM WARNING. A FEW FLURRIES ARE STILL EXPECTED DURING THE NIGHT BUT LITTLE IF ANY ADDITIONAL ACCUMLATION. $$ COZ045-046-200700- /O.CAN.KBOU.WW.Y.0007.000000T0000Z-100320T0600Z/ CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF...BENNETT...BYERS...DEER TRAIL...LEADER... AGATE...HUGO...LIMON...MATHESON 1156 PM MDT FRI MAR 19 2010 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. A FEW FLURRIES ARE STILL EXPECTED DURING THE NIGHT BUT LITTLE IF ANY ADDITIONAL ACCUMLATION. $$
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 Mar 18, 4:45 AM MDT, 1 hour 34 minutes earlier.
Area forecast discussion, Mar 18, 4:45 AM MDT, 1 hour 34 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER CO 445 AM MDT THU MAR 18 2010 .SHORT TERM...ONE FINAL DAY OF EARLY SPRING-LIKE WEATHER BEFORE THE ABRUPT RETURN TO WINTERY CONDITIONS OVERNIGHT. THE UPPER LEVEL TROUGH GAINING STRENGTH OVER THE NRN ROCKIES AND UPPER SNAKE RIVER VALLEY OF IDAHO AT THIS HOUR STILL PROGGED TO SWING SEWRD ACROSS WYOMING TODAY AND OVER COLORADO OVERNIGHT. MODELS ALSO SHOW A WAVE FORMING ON THE FIRST OF TWO SFC FRONTAL BNDRYS TO SLIDE SWRD THRU SERN WY THIS MORNING AND INTO NERN COLORADO BY EARLY THIS AFTERNOON. SFC WINDS AHEAD OF THIS SURGE WILL INITIALLY BE W-SWLY ON THE PLAINS WHICH SHOULD HELP TO QUICKLY WARM TEMPERATURES THRU EARLY AFTERNOON. HOWEVER LOOKING FOR MAX TEMPERATURES TO BE SOME 4-8DEG F LOWER THAN THOSE OBSERVED YESTERDAY...DUE IN PART TO MORE MID AND HIGH CLOUDINESS TODAY. AS THIS BNDRY DRIVES SWRD ACRS NERN COLORADO WILL SEE WINDS SHIFTING TO N-NELY AS SPEEDS INCREASE. ARRIVAL OF THIS SURGE SHOULD PUT AN END TO ANY WARMING. SHOULD THIS SURGE ARRIVE SOONER THAN EXPECTED SAY AROUND MIDDAY...MAX TEMPS MAY END UP BEING A FEW DEGS COOLER. BY THIS EVENING...MODELS SHOW THE 500-700 TROUGH AXIS PASSING OVER NWRN COLORADO WITH QG VERTICAL MOTION INCREASING OVER THE FORECAST AREA. ISOLATED/WIDELY SCATTERED RAIN/SNOW SHOWERS ALREADY UNDERWAY IN THE NORTHERN MTNS/HIGH MTN VALLEYS WITH LAPSE RATES INCREASING DUE TO COOLING ALOFT. THE MAIN PRECIP SHIELD ALIGNED WITH THE TROUGH AXIS IS FCST BY MANY OF THE MODELS TO SWING OVER N-CNTRL COLORADO THIS EVENING AND OUT ACROSS THE NERN PLAINS FM LATE EVENING ONWARD. TAIL END OF AN 80-90KT JET SEGMENT IN THE SERN SECTOR OF THE TROUGH IS ALSO FCST TO PASS OVER THE FCST AREA LATE TONIGHT INCREASING LARGE SCALE LIFT AND PRODUCING CONDITIONAL SYMMETRICAL INSTABILITY. NELY UPSLOPE FLOW EAST OF MTNS DEEPENS AND STRENGTHENS AS THE NIGHT GOES ON FURTHER SUPPORTING PRECIPITATION FORMATION ESPLY OVER AND ALONG THE EAST SLOPE OF THE FRONT RANGE. STILL SOME QUESTION AS TO HOW COLD WILL TEMPERATURES GET OVERNIGHT AS SOME GUIDANCE INDICATES TEMPERATURES IN MANY AREAS OF THE PLAINS MAY REMAIN ABOVE FREEZING ESSENTIALLY ALL NIGHT.SUSPECT ONCE PRECIP BEGINS SHOULD SEE PRECIP GOING FROM A MIX OF RAIN AND SNOW BEFORE MIDNIGHT TO ALL SNOW AFTER MIDNIGHT. AND IT/S DURING THE LATE NIGHT HOURS WHEN WE MAY SEE CSI SNOW BANDS LAYING DOWN 0.5 TO 1.0 INCH PER HOUR SNOWFALL RATES. CHANGES TO WINTER WEATHER HIGHLIGHTS ARE AS FOLLOWS: THE WINTER STORM WATCH FOR THE MTNS...FRONT RANGE FOOTHILLS AND THE I-25 URBAN CORRIDOR WILL BE UPGRADED TO A WARNING. THE WATCH FOR THE THE PLAINS ZONES 45 AND 46 WILL REMAIN UNCHANGED BUT ADJOINING ZONES 43..44 AND 49 WILL BE ADDED TO THIS WATCH. THE WATCH FOR THE MTN ZONE 31 WILL REMAIN AS IS AND LASTLY...SOUTH PARK ZONE 37 WILL COME UNDER A WINTER STORM WATCH. ALL HIGHLIGHTS WILL BEGIN AT 06Z/FRI AND WILL EXPIRE AT 06Z/SAT. .LONG TERM...THE STORM IS STILL ON TRACK FOR A WINTRY DAY AND HIGH IMPACT EVENT TO TRAVELERS FOR MUCH OF NORTHERN COLORADO FOR FRIDAY AND FRIDAY NIGHT. BY FRIDAY AM...NERLY UPSLOPE FLOW HAS DEEPENED UP ABOVE MOUNTAIN TOP LEVEL AT 15-20KT ALONG WITH MOIST ADIABATIC LAPSE RATES BY FRIDAY AFTERNOON. LOCAL SNOW MODEL YIELDING IN UPWARDS OF A FOOT OVER THE FRONT RANGE FOOTHILLS FOR ABOUT A 24 HOUR SNOWFALL WINDOW. INITIALLY...NERN CO WILL BE IN THE RIGHT REAR ENTRANCE REGION OF THE JET WHERE THERE WILL PROBABLY BE SOME BANDED PRECIP OF HIGHER INTENSITY SNOWFALL. THERE MAY EVEN BE A FEW SPOTS OF HIGHER SNOWFALL IN UPWARDS OF 15" IN THE FOOTHILLS BY THE TIME WE ARE DONE BY EARLY SATURDAY. IF ANYTHING...THE STORM MAY COME IN EVEN DEEPER THAN ADVERTISED WITH SECONDARY WAVE MOVING ACROSS COLORADO ON FRIDAY NIGHT. THE LATEST 06Z NAM INDICATES THIS WITH STILL A 100KT JET ON THE BACK SIDE OF THE TROF FRI NIGHT. QG VERTICAL VELOCITY FIELDS STILL SHOWING MODEST ASCENT THRU MUCH OF FRIDAY NIGHT THOUGH MOISTURE DEPTH DOES BEGIN TO SHALLOW OUT LATE FRI NIGHT. SO THERE MAY BE SOME LINGERING FLURRIES EVEN INTO SATURDAY MORNING...ESPECIALLY OVER SOUTHERN AND EASTERN SECTIONS OF THE CWA. MAIN CHANGES TO GRIDS WERE TO MAINTAIN SNOWFALL FURTHER INTO FRIDAY NIGHT/SAT AM BEFORE BETTER CLEARING SATURDAY AFTERNOON. CONFIDENCE IS HIGH ENOUGH TO UPGRADE CURRENT WATCHES TO WARNINGS FOR THE FOOTHILLS AND ADJACENT PLAINS INTO FRIDAY EVENING. HILITES MAY NEED TO BE EXTENDED A BIT FURTHER THROUGH FRI NIGHT...BUT WE'LL HOLD OFF ON ANY EXTENSIONS FOR NOW. GIVEN THE BROAD SYNOPTIC SCALE LIFT WITH THIS SYSTEM...HAVE ALSO ADDED A FEW MORE ZONES FURTHER EAST WITH THE WATCHES WHERE CONFIDENCE NOT AS HIGH YET FOR WARNINGS IN THOSE LOCATIONS. HIGH PRESSURE ALOFT BUILDS ACROSS THE REGION ON SUNDAY FOR A GOOD WARM UP AND DRY CONDITIONS THROUGH MONDAY. LOOKS LIKE WE WILL BE DEALING WITH ANOTHER SYSTEM IN THE TUE-WED TIME FRAME AND GRIDS ALREADY INDICATE SOME PRECIP INCOMING. NO CHANGES TO THE OUT PERIODS. && .AVIATION...DRY AND WARM CONDITIONS TO START OFF THE DAY WITH PRE-FRONTAL WEST TO SOUTHWEST SURFACE FLOW ACROSS THE DENVER METRO AREA UNTIL AROUND MIDDAY. THEN LOOK FOR WINDS TO SHIFT TO A NORTHERLY COMPONENT AS THEY INCREASE IN SPEED WITH THE ARRIVAL OF THE FIRST OF TWO COLD FRONTS DROPPING OUT OF WYOMING. NOT MUCH MOISTURE OR COLD AIR WITH THIS FIRST SURGE. IT/S OVERNIGHT WHEN A SECOND REINFORCING SURGE ARRIVES BRINGING WITH IT SNOW...GUSTY N-NELY WINDS AND COLDER TEMPERATURES. SHOULD SEE A STEADY SLIDE IN TEMPERATURES ONCE THIS SECOND FRONTAL BOUNDARY ARRIVES. SCATTERED RAIN AND SNOW SHOWERS LATE THIS EVENING WILL LIKELY CHANGE OVER TO ALL SNOW NOT LONG AFTER MIDNIGHT. ANTICIPATE IFR CEILINGS AND VISIBILITIES IN SNOW AND FOG AFTER 06Z TONIGHT...WITH LIGHT SNOW ACCUMULATION BY 12Z. ADDITION SNOW ACCUMULATION LIKELY ON FRIDAY WITH SEVERAL INCHES POSSIBLE AT DIA AND ACROSS THE DENVER AREA. GUSTY NORTHERLY WINDS MAY ALSO PRODUCE AREAS OF BLOWING SNOW. ANTICIPATE LOW CEILINGS AND VISIBILITIES THROUGHOUT THE DAY. && .BOU WATCHES/WARNINGS/ADVISORIES...WINTER STORM WARNING FOR LATE TNT THROUGH FRI EVENING FOR MOUNTAINS...FRONT RANGE FOOTHILLS...AND ADJACENT PLAINS INCLUDING THE FRONT RANGE URBAN CORRIDOR AND PALMER DIVIDE...ZONES 33>36..38>41. ...WINTER STORM WATCH FOR LATE TONIGHT THROUGH FRIDAY EVENING FOR PORTIONS OF THE NORTHEAST PLAINS...43>46 AND 49. ...WINTER STORM WATCH FOR LATE TONIGHT THROUGH FRIDAY EVENING FOR ZONES 31..37. BAKER/ENTREKIN
Hazardous weather outlook, Mar 17, 11:06 AM MDT, 19 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK...CORRECTED NATIONAL WEATHER SERVICE DENVER CO 727 AM MDT THU MAR 18 2010 COZ030>051-181700- 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- 727 AM MDT THU MAR 18 2010 ...VARIOUS WINTER WEATHER WARNINGS AND WATCHES FOR LATER TONIGHT THROUGH FRIDAY EVENING FOR MUCH OF NORTHERN COLORADO... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT EARLY SPRING-LIKE CONDITIONS TODAY WILL GIVE WAY TO SNOW...GUSTY WINDS AND SIGNIFICANTLY COLDER TEMPERATURES LATER TONIGHT AND FRIDAY. A STRONG COLD FRONT ACCOMPANYING THIS STORM SYSTEM NOW ORGANIZING OVER THE NORTHERN ROCKY MOUNTAIN REGION WILL SWING THROUGH THE REGION TONIGHT PRODUCING MOIST UPSLOPE FLOW AND STEADILY FALLING TEMPERATURES. SNOW WILL DEVELOP AND SPREAD ACROSS THE HIGH COUNTRY THIS EVENING AND BECOME HEAVY AT TIMES AFTER MIDNIGHT. EAST OF THE MOUNTAINS...SCATTERED RAIN AND SNOW SHOWERS THIS EVENING SHOULD CHANGE OVER TO ALL SNOW AFTER MIDNIGHT. SEVERAL INCHES OF SNOW ACCUMULATION IS LIKELY IN THE MOUNTAINS AND FRONT RANGE FOOTHILLS BY FRIDAY MORNING...ALONG WITH A FEW INCHES OF WET SNOW COVERING THE NEARBY PLAINS...INCLUDING THE GREATER DENVER METRO AREA. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SNOW WILL BE HEAVY AT TIMES FRIDAY AND FRIDAY EVENING ALONG THE FRONT RANGE FOOTHILLS AND ADJACENT PLAINS WITH SIGNIFICANT ACCUMULATIONS EXPECTED. FURTHER EAST ON THE PLAINS...LESSER AMOUNTS OF SNOW ARE EXPECTED BUT GUSTY WINDS WILL CREATE AREAS OF BLOWING SNOW. 8 TO 15 INCHES OF SNOW IS EXPECTED IN THE FOOTHILLS...WITH 6 TO 12 INCHES OVER THE URBAN CORRIDOR...AND 3 TO 6 INCHES FURTHER EAST OVER THE NORTHEAST PLAINS. MUCH COLDER TEMPERATURES ARE EXPECTED ON FRIDAY...WITH READINGS ONLY AROUND 30 DEGREES. A MAJOR LATE WINTER STORM WILL DEVELOP OVER COLORADO LATER TONIGHT AND CONTINUE THROUGH FRIDAY EVENING WITH HEAVY SNOW AT TIMES. THE SNOW WILL DIMINISH LATE FRIDAY NIGHT WITH CLEARING SKIES AND ENDING SNOWFALL ON SATURDAY MORNING. PERSONS PLANNING TRAVEL OR ANY OTHER OUTDOOR ACTIVITIES LATE THURSDAY NIGHT THROUGH FRIDAY EVENING SHOULD PREPARE FOR HARSH WINTER WEATHER CONDITIONS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. BAKER/ENTREKIN
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 12:55 PM MDT | Winter Weather Advisory | BOU | Adams, Arapahoe, Elbert, Grand, Jackson, Lincoln and 7 more | 35 hr |
Nearby
Winter Storm Warnings in Colorado, 2010Every winter storm warning in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.