Alert archive / Colorado / Winter Storm Warnings in 2013
Winter Storm Warning 9, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Apr 22, 2013, 9:20 AM MDT for 11 counties in Colorado. It took effect at Apr 22, 2013, 12:00 PM MDT. It was in force for 17 hr. 33 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
- Apr 22, 2013, 9:20 AM MDT (15:20 UTC)
- In effect from
- Apr 22, 2013, 12:00 PM MDT
- Expired
- Apr 23, 2013, 5:20 AM MDT
- In force
- 17 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Douglas County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Summit County, CO
The radar
The Denver radar (KFTG), 90 km from the middle of the area, began a volume at 15:21 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 22, 12:50 PM MDT | SNOW 1.8 | 2 Ssw Boulder, CO | DAVID SKAGGS RESEARCH CENTER |
| Apr 22, 2:00 PM MDT | SNOW 5 | 2 Sse Tabernash, CO | |
| Apr 22, 4:12 PM MDT | SNOW 2.4 | 2 S Boulder, CO | DAVID SKAGGS RESEARCH CENTER |
| Apr 22, 4:49 PM MDT | SNOW 4 | 1 Ne Estes Park, CO | |
| Apr 22, 5:20 PM MDT | SNOW 4 | 7 Wnw Berthoud, CO | CURRENTLY HEAVY SNOW WITH 1/4 MILE VISIBILITY |
| Apr 22, 6:30 PM MDT | SNOW 2.7 | 1 Se Fort Collins, CO | |
| Apr 22, 6:30 PM MDT | SNOW 3.2 | 2 Ssw Boulder, CO | DAVID SKAGGS RESEARCH CENTER |
| Apr 22, 7:00 PM MDT | SNOW 4.5 | 1 S Estes Park, CO | FELL IN 2 HRS |
| Apr 22, 7:00 PM MDT | HEAVY SNOW 6 | 2 Ene Fort Collins, CO | |
| Apr 22, 7:01 PM MDT | SNOW 3.5 | Fort Collins, CO | |
| Apr 22, 7:02 PM MDT | SNOW 2.6 | 1 Nw Niwot, CO | |
| Apr 22, 7:11 PM MDT | SNOW 5 | 4 Wsw Eldorado Springs, CO | |
| Apr 22, 8:54 PM MDT | SNOW 1.2 | 3 N Conifer, CO | |
| Apr 22, 8:58 PM MDT | SNOW 5.7 | 1 Nnw Louisville, CO | |
| Apr 22, 9:00 PM MDT | SNOW 5.3 | 4 E Boulder, CO | |
| Apr 22, 9:01 PM MDT | SNOW 5.7 | 1 Se Breckenridge, CO | TOTAL SINCE 6P 4/21, 1.9 INCHES SINCE 8A 4/22 |
| Apr 22, 9:05 PM MDT | SNOW 3.7 | Genesee, CO | |
| Apr 22, 9:05 PM MDT | SNOW 5 | 1 Ssw Louisville, CO | |
| Apr 22, 9:05 PM MDT | SNOW 5.4 | 2 S Boulder, CO | DAVID SKAGGS RESEARCH CENTER |
| Apr 22, 9:10 PM MDT | HEAVY SNOW 8 | 4 Ene Nederland, CO | |
| Apr 22, 9:17 PM MDT | HEAVY SNOW 9.2 | 3 N Black Hawk, CO | |
| Apr 22, 9:20 PM MDT | SNOW 3.2 | 4 Sw Longmont, CO | |
| Apr 22, 9:26 PM MDT | SNOW 2.5 | 2 N Longmont, CO | |
| Apr 22, 9:41 PM MDT | SNOW 3 | 4 N Loveland, CO | |
| Apr 22, 9:50 PM MDT | HEAVY SNOW 8 | 6 Nw Lyons, CO | |
| Apr 22, 10:18 PM MDT | SNOW 1.5 | 4 Nnw Castle Rock, CO | |
| Apr 22, 11:50 PM MDT | HEAVY SNOW 10 | 4 Sse Pinecliffe, CO | 10 INCHES NEW SNOW SINCE 8 AM. TOTAL SNOW DEPTH 14 INCHES. |
| Apr 22, 11:55 PM MDT | SNOW 3 | 3 N Conifer, CO | |
| Apr 22, 11:55 PM MDT | SNOW 6.8 | 2 S Boulder, CO | DAVID SKAGGS RESEARCH CENTER |
| Apr 23, 12:00 AM MDT | HEAVY SNOW 7 | 3 Sw Golden, CO | |
| Apr 23, 12:55 AM MDT | SNOW 4.3 | 4 N Loveland, CO | |
| Apr 23, 4:38 AM MDT | SNOW 5.6 | Ken Caryl, CO | |
| Apr 23, 5:30 AM MDT | HEAVY SNOW 7.5 | 1 Nnw Louisville, CO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 3.3 hours before the alert went out and 202 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
- 2046 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
636 WWUS45 KBOU 221520 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 920 AM MDT MON APR 22 2013 ...ANOTHER ROUND OF WINTER WEATHER MOVING INTO THE MOUNTAINS AND FOOTHILLS AND URBAN CORRIDOR THIS AFTERNOON AND TONIGHT... .A STORM SYSTEM ORGANIZING OVER NORTHERN UTAH AND SOUTHWEST WYOMING THIS MORNING WILL MOVE INTO THE MOUNTAINS OF NORTH CENTRAL COLORADO THIS AFTERNOON AND TONIGHT. A STRONG CANADIAN COLD FRONT ACCOMPANYING THIS STORM SYSTEM WILL MOVE INTO THE DENVER AREA THIS MORNING...WITH MUCH COLDER TEMPERATURES AND GUSTY NORTH TO NORTHEAST WINDS BEHIND IT. THESE TWO WEATHER MAKERS WILL COMBINE TO PRODUCE SNOW...POSSIBLY HEAVY AT TIMES...IN THE MOUNTAINS AND FRONT RANGE FOOTHILLS...AND URBAN CORRIDOR THIS AFTERNOON AND TONIGHT. GUSTY NORTHWEST WINDS MAY ALSO PRODUCE AREAS OF BLOWING SNOW. COZ033>036-222330- /O.UPG.KBOU.WW.Y.0017.130422T1800Z-130423T1200Z/ /O.NEW.KBOU.WS.W.0009.130422T1800Z-130423T1200Z/ 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 920 AM MDT MON APR 22 2013 ...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO 6 AM MDT TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM NOON TODAY TO 6 AM MDT TUESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...SNOW WILL INCREASE FROM NORTH TO SOUTH ACROSS THE MOUNTAINS TODAY...AND POSSIBLY BECOME HEAVY AT TIMES THIS AFTERNOON AND EVENING. * SNOW ACCUMULATIONS...TOTALS WILL RANGE FROM 8 TO 14 INCHES BY TUESDAY MORNING...HEAVIEST IN THE FOOTHILLS AND ON HIGHER EAST SLOPES OF THE FRONT RANGE MOUNTAINS. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH CAN BE EXPECTED. HIGHER GUSTS ON MOUNTAIN RIDGES AND PASSES MAY ALSO PRODUCE AREAS OF BLOWING SNOW LATE THIS AFTERNOON AND EVENING. * IMPACTS...ROADWAYS WILL BECOME ICY AND SNOWPACKED. IF TRAVELING INTO THE WARNING AREA...BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS. ADEQUATE SNOW TIRES OR TIRE CHAINS MAY BE REQUIRED ON THE HIGH MOUNTAIN PASSES TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ038>041-222330- /O.EXA.KBOU.WW.Y.0017.130422T1800Z-130423T1200Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND... NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...AURORA... BRIGHTON...CITY OF DENVER...DENVER INTERNATIONAL AIRPORT... HIGHLANDS RANCH...LITTLETON...PARKER...CASTLE ROCK...ELBERT... FONDIS...KIOWA...LARKSPUR 920 AM MDT MON APR 22 2013 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 6 AM MDT TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM NOON TODAY TO 6 AM MDT TUESDAY. * TIMING...SNOW WILL INCREASE FROM NORTH TO SOUTH ACROSS THE URBAN CORRIDOR TODAY...FOLLOWING THE PASSAGE OF THE COLD FRONT. SNOW MAY BECOME HEAVY AT TIMES LATE THIS AFTERNOON AND EVENING AS BANDS OF MODERATE TO HEAVY SNOW DEVELOP. * SNOW ACCUMULATIONS...FROM 2 TO 4 INCHES ACROSS MOST OF THE AREA 4 TO 7 INCHES MAINLY NEAR THE FOOTHILLS AND OVER THE PALMER DIVIDE. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH WITH GUSTS TO 35 MPH CAN BE EXPECTED. VISIBILITIES WILL BE REDUCED TO LESS THAN A HALF MILE AT TIMES IN THE HEAVIER BANDS OF SNOW AND BLOWING SNOW. * IMPACTS...WET ROADWAYS WILL BECOME ICY AND SLICK THIS AFTERNOON...WITH SLUSH DEVELOPING ON THE ROADWAYS BY THE EVENING COMMUTE. IF TRAVELING INTO THE ADVISORY AREA...BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS. SLOW DOWN AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW OR SLUSH COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ030-032-222330- /O.EXA.KBOU.WW.Y.0017.130422T1800Z-130423T1200Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 920 AM MDT MON APR 22 2013 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 6 AM MDT TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR MODERATE TO HEAVY SNOW...WHICH IS IN EFFECT FROM NOON TODAY TO 6 AM MDT TUESDAY. * TIMING...SNOW WILL INCREASE FROM NORTH TO SOUTH ACROSS THE AREA TODAY...AND BECOME HEAVY AT TIMES WITH SNOW BANDS THIS AFTERNOON THROUGH TONIGHT. * SNOW ACCUMULATIONS...FROM 4 TO 8 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A HALF MILE AT TIMES IN THE HEAVIER BANDS OF SNOW. * IMPACTS...ROADWAYS WILL BECOME ICY AND SNOWPACKED. IF TRAVELING INTO THE ADVISORY AREA...BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS. ADEQUATE SNOW TIRES OR TIRE CHAINS MAY BE REQUIRED ON THE HIGH MOUNTAIN PASSES TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ031-222330- /O.CON.KBOU.WW.Y.0017.130422T1800Z-130423T1200Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 920 AM MDT MON APR 22 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 6 AM MDT TUESDAY... * TIMING...SNOW WILL INCREASE FROM NORTH TO SOUTH ACROSS THE MOUNTAINS TODAY...AND POSSIBLY BECOME HEAVY AT TIMES WITH SNOW BANDS THIS AFTERNOON AND THIS EVENING. * SNOW ACCUMULATIONS...FROM 6 TO 10 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN THE HEAVIER SNOW BANDS. * IMPACTS...ROADWAYS WILL BECOME ICY AND SNOWPACKED. IF TRAVELING INTO THE ADVISORY AREA...BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS. ADEQUATE SNOW TIRES OR TIRE CHAINS MAY BE REQUIRED ON THE HIGH MOUNTAIN PASSES TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
4 follow-up statements
729 WWUS45 KBOU 222129 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 329 PM MDT MON APR 22 2013 ...ANOTHER ROUND OF WINTER WEATHER THROUGH TONIGHT... .A STORM SYSTEM AND UPPER LEVEL JET STREAM WILL REMAIN OVER NORTHERN COLORADO THROUGH TONIGHT. THIS WILL BRING SNOW...SOME OF IT HEAVY...ACROSS THE MOUNTAINS...FOOTHILLS...AND ADJACENT PLAINS. THE HEAVIEST SNOW IS EXPECTED TO FALL THIS EVENING WITH SNOWFALL RATES IN EXCESS OF 1 INCH PER HOUR IN THE HEAVIER SHOWERS. SNOW WILL GRADUALLY TAPER OFF IN INTENSITY LATE TONIGHT INTO EARLY TUESDAY MORNING. ROAD CONDITIONS MAY VARY CONSIDERABLY. MOST ROADS IN THE MOUNTAINS AND FOOTHILLS WILL LIKELY BECOME SNOW COVERED AND ICY. ON THE PLAINS INCLUDING THE FRONT RANGE URBAN CORRIDOR...SLUSH AND SNOW MAY ACCUMULATE ON ROADS IN THE HEAVY SHOWERS AND DURING THE OVERNIGHT HOURS AS TEMPERATURES DROP INTO THE LOWER 20S. TOTAL SNOW ACCUMULATIONS ARE EXPECTED TO GRADUALLY DECREASE TO THE EAST ACROSS THE EASTERN PLAINS OF COLORADO. COZ033>036-230530- /O.CON.KBOU.WS.W.0009.000000T0000Z-130423T1200Z/ 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 329 PM MDT MON APR 22 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY... * TIMING...SNOW...HEAVY AT TIMES...WILL GRADUALLY DIMINISH LATE TONIGHT INTO EARLY TUESDAY MORNING. * SNOW ACCUMULATIONS...TOTALS WILL RANGE FROM 8 TO 16 INCHES BY TUESDAY MORNING...HEAVIEST IN THE FOOTHILLS AND ON HIGHER EAST SLOPES OF THE FRONT RANGE MOUNTAINS. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH CAN BE EXPECTED. HIGHER GUSTS ON MOUNTAIN RIDGES AND PASSES MAY ALSO PRODUCE AREAS OF BLOWING SNOW THIS EVENING. VISIBILITIES WILL BE REDUCED TO A QUARTER MILE OR LESS IN THE HEAVIER SHOWERS. * IMPACTS...ROADWAYS WILL BECOME ICY AND SNOWPACKED. IF TRAVELING INTO THE WARNING AREA...BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS. ADEQUATE SNOW TIRES OR TIRE CHAINS MAY BE REQUIRED ON THE HIGH MOUNTAIN PASSES TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ038>041-230530- /O.CON.KBOU.WW.Y.0017.000000T0000Z-130423T1200Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND... NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...AURORA... BRIGHTON...CITY OF DENVER...DENVER INTERNATIONAL AIRPORT... HIGHLANDS RANCH...LITTLETON...PARKER...CASTLE ROCK...ELBERT... FONDIS...KIOWA...LARKSPUR 329 PM MDT MON APR 22 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY... * TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE ACROSS THE FRONT RANGE URBAN CORRIDOR THROUGH THIS EVENING. THE SNOW INTENSITY IS EXPECTED TO GRADUALLY DECREASE LATE TONIGHT. * SNOW ACCUMULATIONS...3 TO 6 INCHES...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES WILL BE REDUCED TO A QUARTER MILE AT TIMES IN THE HEAVIER BANDS OF SNOW. * IMPACTS...WET ROADWAYS MAY BECOME SLUSHY AND SLICK THIS EVENING DURING THE PERIODS OF HEAVIER SNOWFALL...AND OVERNIGHT AS TEMPERATURES FALL INTO THE LOWER 20S. BRIDGES AND OVERPASSES WILL BE MOST SUSCEPTIBLE TO THE HAZARDOUS DRIVING CONDITIONS. SLOW DOWN AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW OR SLUSH COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ030>032-230530- /O.CON.KBOU.WW.Y.0017.000000T0000Z-130423T1200Z/ JACKSON COUNTY BELOW 9000 FEET- WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 329 PM MDT MON APR 22 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY... * TIMING...SNOW...HEAVY AT TIMES THIS EVENING...WILL GRADUALLY DECREASE LATE TONIGHT INTO EARLY TUESDAY MORNING. * SNOW ACCUMULATIONS...4 TO 7 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN THE HEAVIER BANDS OF SNOW. WINDS WILL BE LIGHT. * IMPACTS...ROADWAYS WILL BECOME ICY AND SNOWPACKED THIS EVENING AND OVERNIGHT. BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS. ADEQUATE SNOW TIRES OR TIRE CHAINS MAY BE REQUIRED ON THE HIGH MOUNTAIN PASSES TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ BARJENBRUCH/COOPER
869 WWUS45 KBOU 230218 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 818 PM MDT MON APR 22 2013 ...ANOTHER ROUND OF WINTER WEATHER AND POOR TRAVEL CONDITIONS THROUGH TONIGHT... .A STORM SYSTEM AND UPPER LEVEL JET STREAM WILL REMAIN OVER NORTHERN COLORADO THROUGH TONIGHT. THIS WILL BRING SNOW...SOME OF IT HEAVY...ACROSS THE MOUNTAINS...FOOTHILLS...AND ADJACENT PLAINS. THE HEAVIEST SNOW IS EXPECTED TO FALL THIS EVENING WITH SNOWFALL RATES IN EXCESS OF 1 INCH PER HOUR IN THE HEAVIER SHOWERS. SNOW WILL GRADUALLY TAPER OFF IN INTENSITY LATE TONIGHT INTO EARLY TUESDAY MORNING. ROAD CONDITIONS MAY VARY CONSIDERABLY. MOST ROADS IN THE MOUNTAINS AND FOOTHILLS WILL LIKELY BECOME SNOW COVERED AND ICY. ON THE PLAINS INCLUDING THE FRONT RANGE URBAN CORRIDOR...SLUSH AND SNOW WILL ACCUMULATE ON ROADS IN THE HEAVY SHOWERS THIS EVENING AND THEN IN MOST LOCATIONS DURING THE OVERNIGHT HOURS AS TEMPERATURES DROP INTO THE LOWER 20S. COZ039-231200- /O.UPG.KBOU.WW.Y.0017.000000T0000Z-130423T1200Z/ /O.EXA.KBOU.WS.W.0009.000000T0000Z-130423T1200Z/ BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT 818 PM MDT MON APR 22 2013 ...WINTER STORM WARNING IN EFFECT UNTIL 6 AM MDT TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL 6 AM MDT TUESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE ALONG THE FOOTHILLS INTO THE EARLY MORNING HOURS. THE SNOW IS EXPECTED TO GRADUALLY DECREASE EARLY TUESDAY MORNING. * SNOW ACCUMULATIONS...5 TO 11 INCHES...HEAVIEST FROM ARVADA AND GOLDEN NORTHWARD TO AROUND LOUISVILLE AND BOULDER. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES WILL BE REDUCED TO A QUARTER MILE AT TIMES IN THE HEAVIER BANDS OF SNOW. * IMPACTS...ROADS WILL BECOME SNOW COVERED AND HAZARDOUS TONIGHT AND PERIODS OF HEAVY SNOW COMBINE WITH TEMPERATURES FALLING INTO THE LOWER 20S. SLOW DOWN AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. THE TUESDAY MORNING COMMUTE WILL BE SLOW AND HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ033>036-231200- /O.CON.KBOU.WS.W.0009.000000T0000Z-130423T1200Z/ 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 818 PM MDT MON APR 22 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY... * TIMING...SNOW...HEAVY AT TIMES...WILL GRADUALLY DIMINISH LATE TONIGHT INTO EARLY TUESDAY MORNING. * SNOW ACCUMULATIONS...TOTALS WILL RANGE FROM 8 TO 16 INCHES BY TUESDAY MORNING...HEAVIEST IN THE FOOTHILLS AND ON HIGHER EAST SLOPES OF THE FRONT RANGE MOUNTAINS. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH CAN BE EXPECTED. HIGHER GUSTS ON MOUNTAIN RIDGES AND PASSES MAY ALSO PRODUCE AREAS OF BLOWING SNOW THIS EVENING. VISIBILITIES WILL BE REDUCED TO A QUARTER MILE OR LESS IN THE HEAVIER SHOWERS. * IMPACTS...ROADWAYS WILL BECOME ICY AND SNOWPACKED. IF TRAVELING INTO THE WARNING AREA...BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS. ADEQUATE SNOW TIRES OR TIRE CHAINS MAY BE REQUIRED ON THE HIGH MOUNTAIN PASSES TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ043>046-049-231200- /O.EXA.KBOU.WW.Y.0017.000000T0000Z-130423T1200Z/ CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-WASHINGTON COUNTY- INCLUDING THE CITIES OF...EATON...FORT LUPTON...GREELEY... ROGGEN...BRUSH...FORT MORGAN...GOODRICH...WIGGINS...BENNETT... BYERS...DEER TRAIL...LEADER...AGATE...HUGO...LIMON...MATHESON... AKRON...COPE...LAST CHANCE...OTIS 818 PM MDT MON APR 22 2013 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 6 AM MDT TUESDAY. * TIMING...SNOW...HEAVY AT TIMES THIS EVENING...WILL GRADUALLY DECREASE LATE TONIGHT INTO EARLY TUESDAY MORNING. * SNOW ACCUMULATIONS...3 TO 6 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN THE HEAVIER BANDS OF SNOW. WINDS WILL BE LIGHT. * IMPACTS...ROADWAYS WILL BECOME SLUSHY...SNOWPACKED...AND ICY TONIGHT AS PERIODS OF HEAVY SNOW COMBINE WITH TEMPERATURES FALLING INTO THE LOWER 20S. BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS THROUGH THE TUESDAY MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ038-040-041-231200- /O.CON.KBOU.WW.Y.0017.000000T0000Z-130423T1200Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD 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...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR 818 PM MDT MON APR 22 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY... * TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE ACROSS THE FRONT RANGE URBAN CORRIDOR THROUGH THIS EVENING. THE SNOW INTENSITY IS EXPECTED TO GRADUALLY DECREASE LATE TONIGHT INTO EARLY TUESDAY MORNING. * SNOW ACCUMULATIONS...3 TO 7 INCHES. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES WILL BE REDUCED TO A QUARTER MILE AT TIMES IN THE HEAVIER BANDS OF SNOW. * IMPACTS...ROADWAYS WILL BECOME SLUSHY...SNOWPACKED...AND ICY TONIGHT AS PERIODS OF HEAVY SNOW COMBINE WITH TEMPERATURES FALLING INTO THE LOWER 20S. BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS THROUGH THE TUESDAY MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW OR SLUSH COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ030>032-231200- /O.CON.KBOU.WW.Y.0017.000000T0000Z-130423T1200Z/ JACKSON COUNTY BELOW 9000 FEET- WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 818 PM MDT MON APR 22 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY... * TIMING...SNOW...HEAVY AT TIMES THIS EVENING...WILL GRADUALLY DECREASE LATE TONIGHT INTO EARLY TUESDAY MORNING. * SNOW ACCUMULATIONS...4 TO 7 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN THE HEAVIER BANDS OF SNOW. WINDS WILL BE LIGHT. * IMPACTS...ROADWAYS WILL BECOME ICY AND SNOWPACKED. BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS. ADEQUATE SNOW TIRES OR TIRE CHAINS MAY BE REQUIRED ON THE HIGH MOUNTAIN PASSES TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ BARJENBRUCH
536 WWUS45 KBOU 230356 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 956 PM MDT MON APR 22 2013 ...ANOTHER ROUND OF WINTER WEATHER AND POOR TRAVEL CONDITIONS THROUGH TONIGHT... .A STORM SYSTEM AND UPPER LEVEL JET STREAM WILL REMAIN OVER NORTHERN COLORADO THROUGH TONIGHT. THIS WILL BRING SNOW...SOME OF IT HEAVY...ACROSS THE MOUNTAINS...FOOTHILLS...AND ADJACENT PLAINS. THE HEAVIEST SNOW IS EXPECTED TO FALL THIS EVENING WITH SNOWFALL RATES IN EXCESS OF 1 INCH PER HOUR IN THE HEAVIER SHOWERS. SNOW WILL GRADUALLY TAPER OFF IN INTENSITY LATE TONIGHT INTO EARLY TUESDAY MORNING. ROAD CONDITIONS MAY VARY CONSIDERABLY. MOST ROADS IN THE MOUNTAINS AND FOOTHILLS WILL LIKELY BECOME SNOW COVERED AND ICY. ON THE PLAINS INCLUDING THE FRONT RANGE URBAN CORRIDOR...SNOW AND SLUSH WILL ACCUMULATE ON ROADS IN THE HEAVY SHOWERS THIS EVENING AND THEN IN ALMOST ALL LOCATIONS DURING THE OVERNIGHT HOURS AS TEMPERATURES DROP INTO THE LOWER 20S. COZ033>036-231200- /O.CON.KBOU.WS.W.0009.000000T0000Z-130423T1200Z/ 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 956 PM MDT MON APR 22 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY... * TIMING...SNOW...HEAVY AT TIMES...WILL GRADUALLY DIMINISH LATE TONIGHT INTO EARLY TUESDAY MORNING. * SNOW ACCUMULATIONS...TOTALS WILL RANGE FROM 8 TO 16 INCHES BY TUESDAY MORNING...HEAVIEST IN THE FOOTHILLS AND ON HIGHER EAST SLOPES OF THE FRONT RANGE MOUNTAINS. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH CAN BE EXPECTED. VISIBILITIES WILL BE REDUCED TO A QUARTER MILE OR LESS IN THE HEAVIER SHOWERS. * IMPACTS...ROADWAYS WILL BECOME ICY AND SNOWPACKED. IF TRAVELING INTO THE WARNING AREA...BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS. ADEQUATE SNOW TIRES OR TIRE CHAINS MAY BE REQUIRED ON THE HIGH MOUNTAIN PASSES TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ039-231200- /O.CON.KBOU.WS.W.0009.000000T0000Z-130423T1200Z/ BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT 956 PM MDT MON APR 22 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY... * TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE ALONG THE FOOTHILLS INTO THE LATE NIGHT HOURS. THE SNOW IS EXPECTED TO GRADUALLY DECREASE EARLY TUESDAY MORNING. * SNOW ACCUMULATIONS...5 TO 11 INCHES. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES WILL BE REDUCED TO A QUARTER MILE AT TIMES IN THE HEAVIER BANDS OF SNOW. * IMPACTS...ROADS WILL BECOME SNOW COVERED AND HAZARDOUS TONIGHT AND PERIODS OF HEAVY SNOW COMBINE WITH TEMPERATURES FALLING INTO THE LOWER 20S. SLOW DOWN AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. THE TUESDAY MORNING COMMUTE WILL BE SLOW AND HAZARDOUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ038-040-041-231200- /O.CON.KBOU.WW.Y.0017.000000T0000Z-130423T1200Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD 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...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR 956 PM MDT MON APR 22 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY... * TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE ACROSS THE FRONT RANGE URBAN CORRIDOR THROUGH THIS EVENING. THE SNOW INTENSITY IS EXPECTED TO GRADUALLY DECREASE LATE TONIGHT INTO EARLY TUESDAY MORNING. * SNOW ACCUMULATIONS...3 TO 7 INCHES. LOCALLY HEAVIER AMOUNTS POSSIBLE. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES WILL BE REDUCED TO A QUARTER MILE AT TIMES IN THE HEAVIER BANDS OF SNOW. * IMPACTS...ROADWAYS WILL BECOME SLUSHY...SNOWPACKED...AND ICY TONIGHT AS PERIODS OF HEAVY SNOW COMBINE WITH TEMPERATURES FALLING INTO THE LOWER 20S. BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS THROUGH THE TUESDAY MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW OR SLUSH COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ030>032-231200- /O.CON.KBOU.WW.Y.0017.000000T0000Z-130423T1200Z/ JACKSON COUNTY BELOW 9000 FEET- WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 956 PM MDT MON APR 22 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY... * TIMING...SNOW...HEAVY AT TIMES THIS EVENING...WILL GRADUALLY DECREASE LATE TONIGHT INTO EARLY TUESDAY MORNING. * SNOW ACCUMULATIONS...4 TO 7 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN THE HEAVIER BANDS OF SNOW. WINDS WILL BE LIGHT. * IMPACTS...ROADWAYS WILL BECOME ICY AND SNOWPACKED. BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS. ADEQUATE SNOW TIRES OR TIRE CHAINS MAY BE REQUIRED ON THE HIGH MOUNTAIN PASSES TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ043>046-049-231200- /O.CON.KBOU.WW.Y.0017.000000T0000Z-130423T1200Z/ 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-WASHINGTON COUNTY- INCLUDING THE CITIES OF...EATON...FORT LUPTON...GREELEY... ROGGEN...BRUSH...FORT MORGAN...GOODRICH...WIGGINS...BENNETT... BYERS...DEER TRAIL...LEADER...AGATE...HUGO...LIMON...MATHESON... AKRON...COPE...LAST CHANCE...OTIS 956 PM MDT MON APR 22 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT TUESDAY... * TIMING...SNOW...HEAVY AT TIMES THIS EVENING...WILL GRADUALLY DECREASE LATE TONIGHT INTO EARLY TUESDAY MORNING. * SNOW ACCUMULATIONS...3 TO 7 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN THE HEAVIER BANDS OF SNOW. WINDS WILL BE LIGHT. * IMPACTS...ROADWAYS WILL BECOME SLUSHY...SNOWPACKED...AND ICY TONIGHT AS PERIODS OF HEAVY SNOW COMBINE WITH TEMPERATURES FALLING INTO THE LOWER 20S. BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS THROUGH THE TUESDAY MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ BARJENBRUCH
056 WWUS45 KBOU 231120 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 520 AM MDT TUE APR 23 2013 ...SPRING SNOWSTORM MOVING OUT OF COLORADO LATER THIS MORNING... .THE STORM SYSTEM THAT BROUGHT MODERATE AND HEAVY SNOW ACROSS NORTH CENTRAL AND NORTHEAST COLORADO OVERNIGHT WILL MOVE SOUTH AND EAST OF THE AREA BY LATER THIS MORNING. LIGHT SNOW IS STILL FALLING IN THE MOUNTAINS AND ACROSS THE PLAINS AT THIS TIME...BUT ADDITIONAL ACCUMULATIONS ARE EXPECTED TO BE LIGHT. THE ONE EXCEPTION TO THIS WILL BE ON THE PALMER DIVIDE WHERE A BAND OF MODERATE SNOW MAY PRODUCE A FEW MORE INCHES OF SNOW OVER THE NEXT COUPLE HOURS. ROAD CONDITIONS MAY VARY CONSIDERABLY. MOST ROADS IN THE MOUNTAINS AND FOOTHILLS WILL LIKELY REMAIN SNOW COVERED AND ICY THIS MORNING. ON THE PLAINS INCLUDING THE FRONT RANGE URBAN CORRIDOR...SNOW...SLUSH AND ICY CONDITIONS WILL BEGIN TO IMPROVE BY LATE MORNING. COZ033>036-039-231230- /O.CAN.KBOU.WS.W.0009.000000T0000Z-130423T1200Z/ 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- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD 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...ARVADA... BOULDER...GOLDEN...LAKEWOOD...LONGMONT 520 AM MDT TUE APR 23 2013 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER STORM WARNING. LINGERING SNOW THIS MORNING MAY PRODUCE ANOTHER 2 TO 4 INCHES OF SNOW THROUGH ABOUT NOON. TRAVEL CONDITIONS SHOULD BEGIN IMPROVING BY LATE MORNING AS SNOW INTENSITIES DIMINISH. $$ COZ030>032-038-040-043>045-231230- /O.CAN.KBOU.WW.Y.0017.000000T0000Z-130423T1200Z/ JACKSON COUNTY BELOW 9000 FEET- WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING...FORT COLLINS...HEREFORD... LOVELAND...NUNN...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...EATON...FORT LUPTON...GREELEY...ROGGEN...BRUSH... FORT MORGAN...GOODRICH...WIGGINS...BENNETT...BYERS...DEER TRAIL... LEADER 520 AM MDT TUE APR 23 2013 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. LINGERING LIGHT SNOW EARLY THIS MORNING MAY PRODUCE ANOTHER INCH OF ACCUMULATION THROUGH ABOUT 9 AM. TRAVEL CONDITIONS WILL BEGIN IMPROVING BY MID-LATE MORNING AS SNOWFALL INTENSITIES DIMINISH AND THEN COME TO AN END. $$ COZ041-046-049-231500- /O.EXT.KBOU.WW.Y.0017.000000T0000Z-130423T1500Z/ ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-WASHINGTON COUNTY- INCLUDING THE CITIES OF...CASTLE ROCK...ELBERT...FONDIS...KIOWA... LARKSPUR...AGATE...HUGO...LIMON...MATHESON...AKRON...COPE... LAST CHANCE...OTIS 520 AM MDT TUE APR 23 2013 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 AM MDT THIS MORNING... * TIMING...SNOW...MODERATE TO HEAVY AT TIMES...WILL CONTINUE ON THE PALMER DIVIDE FROM EASTERN ELBERT COUNTY TO SOUTHERN WASHINGTON AND NORTHERN LINCOLN COUNTIES THROUGH ABOUT 8 AM. SNOWFALL RATES UP TO AN INCH AND A HALF PER HOUR WILL BE POSSIBLE. * SNOW ACCUMULATIONS...UP TO 3 INCHES BY 8 AM. LOCALLY HEAVIER AMOUNTS POSSIBLE. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES WILL BE REDUCED TO A QUARTER MILE AT TIMES IN THE HEAVIER BANDS OF SNOW. * IMPACTS...ROADWAYS WILL REMAIN SLUSHY...SNOWPACKED...AND ICY THIS MORNING AS PERIODS OF HEAVY SNOW COMBINE WITH TEMPERATURES IN THE LOWER 20S. BE PREPARED FOR SLOW AND HAZARDOUS DRIVING CONDITIONS THROUGH MID-MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW OR SLUSH COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
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 22, 5:09 AM MDT, 4 hours 11 minutes earlier.
Area forecast discussion, Apr 22, 5:09 AM MDT, 4 hours 11 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER/BOULDER CO 509 AM MDT MON APR 22 2013 .SHORT TERM...EVERYTHING APPEARS TO BE ON TRACK FOR OUR NEXT SHOT OF WINTER WEATHER LATER TODAY AND TONIGHT. THE SURFACE COLD FRONT HAS RECENTLY MOVED THROUGH CASPER...WYOMING ON ITS WAY SOUTHWARD WITH A DECENT PRESSURE SURGE BEHIND IT. TEMPERATURES IN NORTHERN WYOMING ARE ALREADY IN THE LOWER AND MID 20S...SO A SHARP DROP IN TEMPERATURES IS EXPECTED LATER TODAY AFTER THE COLD FRONT MOVES THROUGH. MODELS SHOW THE COLD FRONT MOVING OVER NORTHEAST COLORADO FROM THE LATE MORNING THROUGH EARLY AFTERNOON WITH FRONTAL PASSAGE IN DENVER AROUND 20Z. THIS SHOULD ALLOW TEMPERATURES TO REACH THE MID AND UPPER 40S BEFORE FALLING TO THE LOWER AND MID 30S BEHIND THE FRONT. MODEL CROSS SECTIONS SHOW STRONG UPSLOPE FLOW DEVELOPING BEHIND THE FRONT AND CONTINUING OVERNIGHT. DEW POINTS ON THE PLAINS HAVE CREPT INTO THE MID AND UPPER 30S THIS MORNING WHICH WILL BE THE MOISTURE TO FEED INTO THE UPSLOPE FLOW LATER TONIGHT. IN ADDITION TO THE SURFACE FEATURES...THE 100+ KNOT JET HAS MOVED OVER THE STATE AS EXPECTED...WHICH WILL REMAIN OVER US THROUGH TONIGHT. THIS FEATURE WILL AID IN PRODUCING PRECIPITATION OVER THE MOUNTAINS AND ACROSS THE PLAINS THROUGH THIS AFTERNOON AND TONIGHT. SNOW SHOWERS HAVE BEEN DEVELOPING IN THE MOUNTAINS EARLY THIS MORNING AS EVIDENCE OF THE DYNAMIC LIFTING FROM THE JET ALOFT. FURTHER UPSTREAM...THE WATER VAPOR DOES NOT LOOK THAT MOIST...BUT INFRARED SATELLITE IMAGERY IS BEGINNING TO SHOW SOME MOISTENING OVER NORTHERN UTAH AND SOUTHWEST WYOMING. THIS WILL BE MOVING INTO THE NORTH CENTRAL MOUNTAINS LATER TODAY. WILL BE CHANGING THE WINTER STORM WATCH IN THE MOUNTAINS AND FOOTHILLS TO A WINTER WEATHER ADVISORY FROM NOON TODAY THROUGH TUESDAY MORNING. SNOW AMOUNTS OF 6 TO 10 INCHES LOOKS LIKE A GOOD BET IN THE HIGH COUNTRY. ACROSS THE PLAINS LATER TONIGHT...BANDED PRECIPITATION IS GOING TO BE A POSSIBILITY BECAUSE OF THE JET ALOFT. IT IS HARD TO TELL WHERE THESE BANDS ARE GOING TO SET UP...SO FOR NOW THE FORECAST WILL JUST TALK ABOUT 2 TO 5 INCH ACCUMULATIONS OVERNIGHT. .LONG TERM...THE UPPER LEVEL TROUGH WILL STILL BE MOVING ACROSS THE AREA TUE MORNING WITH SOME MID LVL QG ASCENT HOWEVER THE UPSLOPE COMPONENT WILL BE VERY WEAK. THUS WILL SEE SOME LINGERING LIGHT SNOW THRU THE MORNING HOURS FM DENVER SOUTH TO THE PALMER DIVIDE AND IN THE FOOTHILLS AND MTN AREAS MAINLY SOUTH OF I-70. BY AFTN WITH LINGERING MOISTURE AND DECENT LAPSE RATES IN THE MTNS AND FOOTHILLS COULD SEE SOME SNOW SHOWERS REDEVELOP. OVER THE PLAINS DRIER AIR WILL BE IN PLACE BY AFTN SO WILL KEEP FCST DRY. AS FAR AS HIGHS OVERALL WILL KEEP READINGS IN THE 35 TO 40 DEGREE RANGE ACROSS NERN CO. FOR WED A WK DISTURBANCE IN NW FLOW ALOFT WILL MOVE ACROSS THE AREA HOWEVER MOISTURE WITH THIS FEATURE IS RATHER LIMITED SO WILL ONLY MENTION A SLIGHT CHC OF -SHSN IN THE MTNS. HIGHS ACROSS NERN CO SHOULD RISE INTO THE UPPER 40S TO LOWER 50S. BY THU A WK UPER LEVEL TROUGH WILL MOVE ACROSS THE SRN ROCKIES WHICH MAY LEAD TO A SLIGHT CHC OF -SHSN IN THE MTNS SOUTH OF I-70. FOR NOW WILL KEEP THE PLAINS DRY ALTHOUGH IF THIS FEATURE ENDS UP A LITTLE FURTHER NORTH THERE COULD BE A FEW LIGHT SHOWERS THU AFTN AND EVENING OVER THE PALMER DIVIDE AND SOUTH OF I-70. AS FOR HIGHS LOOKS LIKE READINGS OVER NERN CO SHOULD RISE BACK INTO THE LOWER 60S. FOR FRI AND SAT MAINLY DRY WNW FLOW ALOFT IS FCST OVER THE AREA. MEANWHILE TEMPS WILL CONTINUE TO RISE WITH HIGHS OVER NERN CO IN THE 60S ON FRI AND POSSIBLY NEAR 70 BY SAT. LITTLE CHANGE IS EXPECTED FOR SUN WITH MAINLY DRY CONDITIONS AND TEMPS NEAR 70 ACROSS NERN CO. && .AVIATION...HIGH CEILINGS WILL CONTINUE THROUGH EARLY AFTERNOON WHEN THE COLD FRONT COMES THROUGH WITH GUSTY WINDS COOLING TEMPERATURES. CEILINGS WILL RAPIDLY DROP TO MVFR AND THEN IFR AS SNOW SHOWERS DEVELOP IN THE HOUR OR SO AFTER FRONTAL PASSAGE. IFR CONDITIONS ARE EXPECTED TONIGHT DUE TO STRONG UPSLOPE WINDS AND A MOIST AIRMASS. SNOW ACCUMULATIONS COULD BE 1 TO 2 INCHES BY 7 PM AND THEN ANOTHER 3 TO 5 INCHES OVERNIGHT. IF A HEAVIER SNOW BAND SETS UP OVER THE AIRPORT...1 TO 2 INCH PER HOURS SNOWFALL WILL BE POSSIBLE WITH TOTAL ACCUMULATIONS UP TO 8 INCHES OVERNIGHT. THE STORM WILL BEGIN WINDING DOWN AFTER 8 AM TUESDAY MORNING. && .BOU WATCHES/WARNINGS/ADVISORIES... WINTER WEATHER ADVISORY FROM NOON TODAY TO 6 AM MDT TUESDAY FOR COZ031-033>036. && SHORT TERM...DANKERS LONG TERM....RPK AVIATION...DANKERS
Hazardous weather outlook, Apr 22, 5:43 AM MDT, 3 hours 37 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER/BOULDER CO 543 AM MDT MON APR 22 2013 COZ030>051-231145- 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- 543 AM MDT MON APR 22 2013 ...WINTER WEATHER ADVISORY FROM NOON TODAY THROUGH 6 AM TUESDAY MORNING FOR THE NORTHERN AND CENTRAL MOUNTAINS AND THE FOOTHILLS... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT SNOW WILL INCREASE IN THE MOUNTAINS THROUGH THE DAY AND IN THE FOOTIHLLS BY THIS AFTERNOON. SNOW ACCUMULATIONS BY LATE TONIGHT WILL RANGE FROM 6 TO 12 INCHES. OVER NORTHEAST COLORADO A STRONG COLD FRONT WILL MOVE ACROSS THE AREA LATE THIS MORNING INTO THE AFTERNOON HOURS WITH GUSTY NORTHEAST WINDS DEVELOPING. BEHIND THE FRONT SNOW WILL DEVELOP NEAR THE WYOMING BORDER BY MIDDAY AND THEN MOVE SOUTHWARD ACROSS THE FRONT RANGE. THE SNOW WILL CONTINUE TONIGHT WITH ACCUMULATIONS OF 2 TO 4 INCHES POSSIBLE WITH LOCALLY UP TO 6 INCHES NEAR THE FOOTHILLS AND ACROSS THE PALMER DIVIDE. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE CHANCE OF SNOW WILL LINGER INTO TUESDAY MORNING MAINLY SOUTH OF I-70 WITH ADDITIONAL ACCUMULATIONS UP TO AN INCH. DRIER WEATHER AND WARMER TEMPERATURES ARE EXPECTED FROM WEDNESDAY THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.
In the hours before
Local storm report, Apr 22, 8:19 AM MDT, 1 hour 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DENVER CO
819 AM MDT MON APR 22 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 AM SNOW 2 SSE BRECKENRIDGE 39.47N 106.03W
04/22/2013 M3.8 INCH SUMMIT CO TRAINED SPOTTER
0744 AM SNOW BLACK HAWK 39.80N 105.49W
04/22/2013 M3.2 INCH GILPIN CO TRAINED SPOTTER
1.2 INCHES SNOW PAST 45 MINUTES
0730 AM SNOW 3 N BLACK HAWK 39.84N 105.49W
04/22/2013 M4.0 INCH GILPIN CO TRAINED SPOTTER
&&
JKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 5:46 AM MDT | Winter Weather Advisory | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 13 more | 27 hr |
Nearby
Winter Storm Warnings in Colorado, 2013Every winter storm warning in 2013
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.