Alert archive / Colorado / Winter Storm Warnings in 2015
Winter Storm Warning 17, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Dec 14, 2015, 3:12 PM MST for 15 counties in Colorado. It took effect at Dec 15, 2015, 1:00 AM MST. It was in force for 16 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
- Dec 14, 2015, 3:12 PM MST (22:12 UTC)
- In effect from
- Dec 15, 2015, 1:00 AM MST
- Expired
- Dec 15, 2015, 5:00 PM MST
- In force
- 16 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Jefferson County, CO, Larimer County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 44 km from the middle of the area, began a volume at 22:14 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 |
|---|---|---|---|
| Dec 15, 4:30 AM MST | SNOW 4 | 1 W Lafayette, CO | |
| Dec 15, 4:45 AM MST | SNOW 5 | 1 Nnw Federal Heights, CO | |
| Dec 15, 5:00 AM MST | SNOW 3.2 | Denver Intl Airport, CO | |
| Dec 15, 5:07 AM MST | SNOW 1.9 | 4 E Fort Collins, CO | |
| Dec 15, 5:12 AM MST | SNOW 5.5 | Lyons, CO | |
| Dec 15, 5:15 AM MST | SNOW 5 | 4 Sse Brookvale, CO | |
| Dec 15, 5:28 AM MST | SNOW 5 | Westminster, CO | |
| Dec 15, 5:30 AM MST | HEAVY SNOW 7 | 2 N Longmont, CO | |
| Dec 15, 5:44 AM MST | SNOW 5 | Northglenn, CO | |
| Dec 15, 5:44 AM MST | HEAVY SNOW 7.6 | 4 Nnw Castle Rock, CO | |
| Dec 15, 5:49 AM MST | HEAVY SNOW 6 | Lafayette, CO | |
| Dec 15, 6:14 AM MST | HEAVY SNOW 6 | 3 Ese Denver, CO | |
| Dec 15, 6:16 AM MST | HEAVY SNOW 7.1 | Louisville, CO | |
| Dec 15, 6:22 AM MST | HEAVY SNOW 6 | 5 Sse Aurora, CO | |
| Dec 15, 6:25 AM MST | HEAVY SNOW 6.8 | Arvada, CO | |
| Dec 15, 6:30 AM MST | SNOW 1.6 | Hereford, CO | |
| Dec 15, 6:30 AM MST | HEAVY SNOW 10.5 | Genesee, CO | |
| Dec 15, 6:40 AM MST | SNOW 5 | Bergen Park, CO | |
| Dec 15, 6:44 AM MST | HEAVY SNOW 7 | 3 Se Denver, CO | |
| Dec 15, 7:00 AM MST | HEAVY SNOW 8 | Greeley, CO | |
| Dec 15, 7:00 AM MST | HEAVY SNOW 8.5 | 2 Nw Parker, CO | |
| Dec 15, 7:00 AM MST | HEAVY SNOW 10 | 1 Nnw Larkspur, CO | |
| Dec 15, 7:10 AM MST | SNOW 4 | 3 E Greeley, CO | GREELEY AIRPORT |
| Dec 15, 7:10 AM MST | HEAVY SNOW 10 | 3 Ssw Boulder, CO | |
| Dec 15, 7:11 AM MST | HEAVY SNOW 8 | 1 Se Frederick, CO | |
| Dec 15, 7:14 AM MST | HEAVY SNOW 10 | 4 Nnw Larkspur, CO | |
| Dec 15, 7:27 AM MST | SNOW 1.5 | Iliff, CO | ICE ACCUMULATION ONE TENTH OVERNIGHT. 1.5 INCHES OF SNOW IN LAST HOUR. |
| Dec 15, 7:30 AM MST | SNOW 7.4 | 8 Se Watkins, CO | |
| Dec 15, 7:30 AM MST | SNOW 8 | 2 Se Chatfield Reservoi, CO | |
| Dec 15, 7:30 AM MST | HEAVY SNOW 9 | 2 W Boulder, CO | |
| Dec 15, 7:30 AM MST | SNOW 12 | 3 Nw Idledale, CO | |
| Dec 15, 7:30 AM MST | HEAVY SNOW 14.2 | 1 E Buckhorn Mountain, CO | |
| Dec 15, 7:32 AM MST | HEAVY SNOW 8.5 | 2 Nw Parker, CO | |
| Dec 15, 7:35 AM MST | SNOW 4 | 1 Se Wellington, CO | |
| Dec 15, 7:35 AM MST | SNOW 4.1 | 4 E Fort Collins, CO | |
| Dec 15, 7:35 AM MST | SNOW 4.1 | Fort Collins, CO | |
| Dec 15, 7:35 AM MST | SNOW 8 | 2 Se Chatfield Reservoi, CO | |
| Dec 15, 7:55 AM MST | HEAVY SNOW 7 | Broomfield, CO | |
| Dec 15, 7:55 AM MST | HEAVY SNOW 8 | Boulder, CO | |
| Dec 15, 8:00 AM MST | HEAVY SNOW 6.1 | 2 Ne Thornton, CO | |
| Dec 15, 8:00 AM MST | HEAVY SNOW 12 | 4 Sw Eldorado Springs, CO | |
| Dec 15, 8:03 AM MST | SNOW 5.3 | 2 N Lochbuie, CO | |
| Dec 15, 8:04 AM MST | HEAVY SNOW 6.5 | 1 Ene Fort Collins, CO | |
| Dec 15, 8:18 AM MST | SNOW 7.5 | 1 E Wheat Ridge, CO | |
| Dec 15, 8:18 AM MST | SNOW 10.5 | 2 S Erie, CO | |
| Dec 15, 8:24 AM MST | HEAVY SNOW 9 | Se Greeley, CO | |
| Dec 15, 8:27 AM MST | HEAVY SNOW 8.5 | 2 Ssw Boulder, CO | AT NWS OFFICE |
| Dec 15, 8:35 AM MST | HEAVY SNOW 13.2 | Genesee, CO | 1.2 INCHES LAST HOUR. |
| Dec 15, 8:40 AM MST | SNOW 8 | Westminster, CO | WESTMINSTER CITY HALL |
| Dec 15, 8:41 AM MST | HEAVY SNOW 10 | 1 S Greeley, CO | |
| Dec 15, 8:44 AM MST | SNOW 5.5 | 1 Sw Evergreen, CO | |
| Dec 15, 8:44 AM MST | HEAVY SNOW 7 | 3 Wsw Conifer, CO | 2-3 FOOT DRIFTS |
| Dec 15, 8:45 AM MST | SNOW 8 | 4 Ene Nederland, CO | |
| Dec 15, 8:48 AM MST | HEAVY SNOW 6.5 | 3 Ene Horsetooth Mounta, CO | |
| Dec 15, 9:00 AM MST | SNOW 11 | 3 Ese Tiny Town, CO | |
| Dec 15, 9:05 AM MST | SNOW 3 | Nw Sterling, CO | |
| Dec 15, 9:05 AM MST | SNOW 8.5 | 2 N Longmont, CO | |
| Dec 15, 9:15 AM MST | SNOW 7.3 | 3 Sse Aurora, CO | |
| Dec 15, 9:20 AM MST | SNOW 4.5 | 1 Nne Estes Park, CO | 0.25 WATER EQUIVALENT |
| Dec 15, 9:45 AM MST | SNOW 7 | 2 Wsw Fort Collins, 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 (KDEN), launched 12:00Z, 10.2 hours before the alert went out and 86 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
- 2241 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
148 WWUS45 KBOU 142212 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 312 PM MST MON DEC 14 2015 ...HEAVY SNOW FOR THE NORTHERN MOUNTAINS AND SNOW AND WIND FOR THE PLAINS TONIGHT AND TUESDAY... .A STORM SYSTEM WILL STRENGTHEN AS IT MOVES INTO EAST CENTRAL COLORADO BY TUESDAY MORNING. SNOW...HEAVY AT TIMES...WILL DEVELOP OVER THE MOUNTAINS NORTH OF INTERSTATE 70 TONIGHT. SNOW AND BLOWING SNOW WILL DEVELOP OVER THE URBAN CORRIDOR AND NORTHEAST PLAINS OF COLORADO LATE TONIGHT AND TUESDAY. COZ042-044-048>051-150615- /O.UPG.KBOU.WS.A.0013.151215T0600Z-151215T2100Z/ /O.NEW.KBOU.WS.W.0017.151215T1200Z-151216T0000Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY- WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...BRUSH...FORT MORGAN...GOODRICH...WIGGINS... CROOK...MERINO...STERLING...PEETZ...AKRON...COPE...LAST CHANCE... OTIS...JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 312 PM MST MON DEC 14 2015 ...WINTER STORM WARNING IN EFFECT FROM 5 AM TO 5 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 5 AM TO 5 PM MST TUESDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...A MIX OF FREEZING DRIZZLE AND LIGHT SNOW WILL DEVELOP AFTER MIDNIGHT. SNOW...HEAVY AT TIMES...WILL DEVELOP BY EARLY TUESDAY MORNING. WINDS WILL INCREASE TUESDAY MORNING INTO THE AFTERNOON. SNOW AND WIND WILL DIMINISH BEGINNING TUESDAY EVENING. * SNOW ACCUMULATIONS...STORM TOTALS OF 4 TO 7 INCHES...HEAVIEST NEAR THE WYOMING AND NEBRASKA BORDERS. * WIND/VISIBILITY...EAST TO NORTHEAST WINDS 15 TO 25 MPH TONIGHT THEN NORTH 15 TO 25 MPH WITH GUSTS TO 35 MPH TUESDAY. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN SNOW AND BLOWING SNOW. * IMPACTS...ROADS WILL BECOME ICY AND SNOWPACKED FROM BLOWING AND DRIFTING SNOW ALONG WITH GREATLY REDUCED VISIBILITIES. THE COLDER TEMPERATURES AND STRONG WINDS WILL ALSO PRODUCE VERY COLD WIND CHILL TEMPERATURES. 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. && $$ COZ038-040-041-043-045-150615- /O.EXB.KBOU.WW.Y.0030.151215T0600Z-151216T0000Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND... NUNN...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR... EATON...FORT LUPTON...GREELEY...ROGGEN...BENNETT...BYERS... DEER TRAIL...LEADER 312 PM MST MON DEC 14 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY. * TIMING...MODERATE TO HEAVY SNOW WILL BEGIN TO DEVELOP AROUND MIDNIGHT AND CONTINUE THROUGH TUESDAY. THE HEAVIEST SNOW IS EXPECTED BETWEEN MIDNIGHT AND NOON ON TUESDAY. THE INTENSITY OF THE SNOWFALL SHOULD START TO DECREASE TUESDAY AFTERNOON FROM WEST TO EAST. * SNOW ACCUMULATIONS...STORM TOTAL OF 3 TO 6 INCHES. * WIND/VISIBILITY...NORTH 10 TO 20 MPH WITH GUSTS TO 30 MPH ON TUESDAY. VISIBILITIES MAY BE REDUCED TO LESS THAN HALF A MILE AT TIMES IN HEAVY SNOW. * IMPACTS...ROADS WILL BECOME ICY AND SNOWPACKED FROM BLOWING AND DRIFTING SNOW ALONG WITH REDUCED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ031-033-150615- /O.CON.KBOU.WW.Y.0030.151215T0100Z-151216T0000Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS 312 PM MST MON DEC 14 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 PM MST TUESDAY... * TIMING...MODERATE TO HEAVY SNOW WILL DEVELOP THIS EVENING AND CONTINUE THROUGH TUESDAY. THE INTENSITY OF THE SNOWFALL SHOULD START TO DECREASE TUESDAY AFTERNOON. * SNOW ACCUMULATIONS...STORM TOTALS 6 TO 12 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN HEAVY SNOW. * IMPACTS...TRAVELERS SHOULD BE PREPARED FOR ICY AND SNOWPACKED ROADWAYS...ESPECIALLY OVER THE HIGHER MOUNTAIN PASSES. 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. && $$
5 follow-up statements
542 WWUS45 KBOU 150433 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 933 PM MST MON DEC 14 2015 ...WINTER STORM TO AFFECT THE MOUNTAINS...FOOTHILLS AND ADJACENT PLAINS OVERNIGHT THROUGH TUESDAY... .A STORM SYSTEM WILL STRENGTHEN AS IT MOVES INTO EAST CENTRAL COLORADO BY TUESDAY MORNING AND THEN MOVE NORTHEAST INTO SOUTHWEST NEBRASKA BY TUESDAY AFTERNOON. SNOW...HEAVY AT TIMES...WILL DEVELOP OVER THE MOUNTAINS NORTH OF INTERSTATE 70 TONIGHT AND THEN SPREAD ACROSS THE FOOTHILLS AND ADJACENT PLAINS LATE TONIGHT INTO TUESDAY. BLOWING SNOW WILL DEVELOP OVER PORTIONS OF THE URBAN CORRIDOR AND NORTHEAST PLAINS OF COLORADO ON TUESDAY AS GUSTY NORTH WINDS DEVELOP. COZ038-040-041-043-045-151245- /O.UPG.KBOU.WW.Y.0030.151215T0600Z-151216T0000Z/ /O.EXB.KBOU.WS.W.0017.151215T0800Z-151215T2100Z/ 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- CENTRAL AND SOUTH WELD COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- 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... EATON...FORT LUPTON...GREELEY...ROGGEN...BENNETT...BYERS... DEER TRAIL...LEADER 933 PM MST MON DEC 14 2015 ...WINTER STORM WARNING IN EFFECT FROM 1 AM TO 2 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 1 AM TO 2 PM MST TUESDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...SNOW WILL INCREASE AROUND 2 AM AND CONTINUE THROUGH TUESDAY MORNING BEFORE ENDING BY MID AFTERNOON. THE HEAVIEST SNOW IS EXPECTED LATE TONIGHT THROUGH MID MORNING ON TUESDAY. THE INTENSITY OF THE SNOWFALL SHOULD START TO DECREASE LATE TUESDAY MORNING INTO TUESDAY AFTERNOON FROM WEST TO EAST. * SNOW ACCUMULATIONS...STORM TOTAL OF 5 TO 10 INCHES WITH LOWER AMOUNTS NEAR THE WYOMING BORDER. * WIND/VISIBILITY...NORTH 10 TO 20 MPH WITH GUSTS TO 30 MPH ON TUESDAY. VISIBILITIES MAY BE REDUCED TO LESS THAN HALF A MILE AT TIMES IN HEAVY SNOW AND BLOWING SNOW. * IMPACTS...ROADS WILL BECOME ICY AND SNOWPACKED FROM BLOWING AND DRIFTING SNOW ALONG WITH REDUCED VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ039-151245- /O.EXB.KBOU.WS.W.0017.151215T0800Z-151215T2100Z/ BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF...ARVADA...BOULDER...GOLDEN...LAKEWOOD... LONGMONT 933 PM MST MON DEC 14 2015 ...WINTER STORM WARNING IN EFFECT FROM 1 AM TO 2 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 1 AM TO 2 PM MST TUESDAY. * TIMING...SNOW WILL INCREASE AROUND 2 AM AND CONTINUE THROUGH TUESDAY MORNING BEFORE ENDING BY MID AFTERNOON. THE HEAVIEST SNOW IS EXPECTED LATE TONIGHT THROUGH MID MORNING ON TUESDAY. THE INTENSITY OF THE SNOWFALL WILL START TO DECREASE LATE TUESDAY MORNING INTO TUESDAY AFTERNOON FROM WEST TO EAST. * SNOW ACCUMULATIONS...STORM TOTALS OF 5 TO 10 INCHES. * WIND/VISIBILITY...NORTH WINDS OF 10 TO 20 MPH COMBINED WITH HEAVY SNOW WILL LOWER VISIBILITIES TO INDER ONE HALF MILE AT TIMES. * IMPACTS...ROADS WILL BECOME ICY AND SNOWPACKED DUE TO HEAVY SNOWFALL. 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. && $$ COZ042-044-048>051-151245- /O.CON.KBOU.WS.W.0017.151215T1200Z-151216T0000Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY- WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...BRUSH...FORT MORGAN...GOODRICH...WIGGINS... CROOK...MERINO...STERLING...PEETZ...AKRON...COPE...LAST CHANCE... OTIS...JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 933 PM MST MON DEC 14 2015 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM TO 5 PM MST TUESDAY... * TIMING...LIGHT SNOW WILL DEVELOP AFTER MIDNIGHT. SNOW...HEAVY AT TIMES...WILL DEVELOP BY EARLY TUESDAY MORNING. WINDS WILL INCREASE TUESDAY MORNING INTO THE AFTERNOON. SNOW AND WIND WILL DIMINISH EARLY TUESDAY EVENING. * SNOW ACCUMULATIONS...STORM TOTALS OF 4 TO 10 INCHES...HEAVIEST NEAR THE WYOMING AND NEBRASKA BORDERS. * WIND/VISIBILITY...EAST TO NORTHEAST WINDS 10 TO 20 MPH TONIGHT THEN NORTH 15 TO 25 MPH WITH GUSTS TO 35 MPH TUESDAY. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN SNOW AND BLOWING SNOW. * IMPACTS...ROADS WILL BECOME ICY AND SNOWPACKED FROM BLOWING AND DRIFTING SNOW ALONG WITH GREATLY REDUCED VISIBILITIES. THE COLDER TEMPERATURES AND STRONG WINDS WILL ALSO PRODUCE VERY COLD WIND CHILL TEMPERATURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ035-036-151245- /O.EXB.KBOU.WW.Y.0030.151215T0800Z-151216T2100Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND... RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK 933 PM MST MON DEC 14 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM TUESDAY TO 2 PM MST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 1 AM TUESDAY TO 2 PM MST WEDNESDAY. * TIMING...MODERATE TO HEAVY SNOW WILL DEVELOP OVERNIGHT AND CONTINUE THROUGH TUESDAY MORNING. THE INTENSITY OF THE SNOWFALL WILL DECREASE BY LATE MORNING. * SNOW ACCUMULATIONS...STORM TOTALS 6 TO 12 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN HEAVY SNOW. * IMPACTS...TRAVELERS SHOULD BE PREPARED FOR ICY AND SNOWPACKED ROADWAYS. 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. && $$ COZ046-151245- /O.EXB.KBOU.WW.Y.0030.151215T1200Z-151216T0000Z/ NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF...AGATE...HUGO...LIMON...MATHESON 933 PM MST MON DEC 14 2015 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 5 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 5 AM TO 5 PM MST TUESDAY. * TIMING...SNOW WILL DEVELOP BY EARLY TUESDAY MORNING AND CONTINUE THROUGH THE AFTERNOON BEFORE ENDING BY EARLY TUESDAY EVENING. * SNOW ACCUMULATIONS...STORM TOTALS 2 TO 6 INCHES. * WIND/VISIBILITY...NORTH WINDS WILL INCREASE TO 15 TO 25 MPH BY EARLY TUESDAY MORNING WITH GUSTS TO 35 MPH THROUGH THE AFTERNOON. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN SNOW AND BLOWING SNOW. * IMPACTS...TRAVELERS SHOULD BE PREPARED FOR ICY AND SNOWPACKED ROADWAYS ALONG WITH POOR VISIBILITIES DUE TO BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ034-151245- /O.EXA.KBOU.WW.Y.0030.000000T0000Z-151216T0000Z/ SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...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 933 PM MST MON DEC 14 2015 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST TUESDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 5 PM MST TUESDAY. * TIMING...MODERATE TO HEAVY SNOW WILL DEVELOP THIS EVENING AND CONTINUE THROUGH TUESDAY. THE INTENSITY OF THE SNOWFALL SHOULD START TO DECREASE TUESDAY AFTERNOON. * SNOW ACCUMULATIONS...STORM TOTALS 4 TO 8 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN HEAVIER SNOW BANDS. * IMPACTS...TRAVELERS SHOULD BE PREPARED FOR ICY AND SNOWPACKED ROADWAYS...ESPECIALLY OVER THE HIGHER MOUNTAIN PASSES. 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. && $$ COZ031-033-151245- /O.CON.KBOU.WW.Y.0030.000000T0000Z-151216T0000Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS 933 PM MST MON DEC 14 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST TUESDAY... * TIMING...MODERATE TO HEAVY SNOW WILL DEVELOP TONIGHT AND CONTINUE THROUGH TUESDAY. THE INTENSITY OF THE SNOWFALL SHOULD START TO DECREASE BY TUESDAY AFTERNOON. * SNOW ACCUMULATIONS...STORM TOTALS 6 TO 12 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN HEAVY SNOW. * IMPACTS...TRAVELERS SHOULD BE PREPARED FOR ICY AND SNOWPACKED ROADWAYS...ESPECIALLY OVER THE HIGHER MOUNTAIN PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
914 WWUS45 KBOU 151154 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 454 AM MST TUE DEC 15 2015 ...WINTER STORM TO AFFECT THE MOUNTAINS...FOOTHILLS AND ADJACENT PLAINS TODAY... .A STORM SYSTEM OVER EAST CENTRAL COLORADO WILL MOVE NORTHEAST INTO SOUTHWEST NEBRASKA THIS AFTERNOON. SNOW...HEAVY AT TIMES...WILL SPREAD EAST OVER THE NORTHEAST PLAINS LATER THIS MORNING. MEANWHILE...SNOW WILL DECREASE OVER THE MOUNTAINS AND FRONT RANGE THROUGH THE MORNING. EXPECT AREAS OF BLOWING SNOW OVER PORTIONS OF THE URBAN CORRIDOR AND NORTHEAST PLAINS DUE TO GUSTY NORTH WINDS. COZ038>041-043-045-152100- /O.CON.KBOU.WS.W.0017.000000T0000Z-151215T2100Z/ 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- CENTRAL AND SOUTH WELD COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- 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...EATON...FORT LUPTON...GREELEY... ROGGEN...BENNETT...BYERS...DEER TRAIL...LEADER 454 AM MST TUE DEC 15 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * TIMING...SNOW WILL CONTINUE THIS MORNING BEFORE ENDING BY MID AFTERNOON. THE INTENSITY OF THE SNOWFALL WILL DECREASE AROUND MID MORNING FROM WEST TO EAST. * SNOW ACCUMULATIONS...STORM TOTAL OF 5 TO 10 INCHES WITH LOWER AMOUNTS NEAR THE WYOMING BORDER. * WIND/VISIBILITY...NORTH 10 TO 20 MPH WITH GUSTS TO 30 MPH. VISIBILITIES MAY BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN HEAVY SNOW AND BLOWING SNOW. * IMPACTS...ROADS WILL BE ICY AND SNOWPACKED WITH HAZARDOUS TRAVEL CONDITIONS. VISIBILITIES WILL BE REDUCED AT TIMES DUE TO THE HEAVY SNOWFALL AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ042-044-048>051-152100- /O.CON.KBOU.WS.W.0017.151215T1200Z-151216T0000Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY- WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...BRUSH...FORT MORGAN...GOODRICH...WIGGINS... CROOK...MERINO...STERLING...PEETZ...AKRON...COPE...LAST CHANCE... OTIS...JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 454 AM MST TUE DEC 15 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED TO DEVELOP THIS MORNING. SNOW AND WIND WILL DIMINISH EARLY TUESDAY EVENING. * SNOW ACCUMULATIONS...STORM TOTALS OF 4 TO 10 INCHES...HEAVIEST NEAR THE WYOMING AND NEBRASKA BORDERS. * WIND/VISIBILITY...NORTH TO NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN SNOW AND BLOWING SNOW. * IMPACTS...ROADS WILL BECOME ICY AND SNOWPACKED WITH HAZARDOUS TRAVEL CONDITIONS. VISIBILITIES WILL BE REDUCED AT TIMES DUE TO THE HEAVY SNOWFALL AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ031-033-034-152100- /O.CON.KBOU.WW.Y.0030.000000T0000Z-151216T0000Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 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- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...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 454 AM MST TUE DEC 15 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...SNOW WILL CONTINUE THROUGH TODAY. THE INTENSITY OF THE SNOWFALL WILL START TO DECREASE THIS AFTERNOON. * SNOW ACCUMULATIONS...STORM TOTALS 4 TO 10 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN HEAVIER SNOW BANDS. * IMPACTS...ROADS WILL BE ICY AND SNOWPACKED WITH HAZARDOUS TRAVEL CONDITIONS. VISIBILITIES WILL BE REDUCED AT TIMES DUE TO THE HEAVY SNOWFALL AND BLOWING SNOW. 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. && $$ COZ035-036-152100- /O.CON.KBOU.WW.Y.0030.000000T0000Z-151216T2100Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND... RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK 454 AM MST TUE DEC 15 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST WEDNESDAY... * TIMING...SNOW WILL CONTINUE THROUGH THIS MORNING AND COME TO AN END THIS AFTERNOON. * SNOW ACCUMULATIONS...STORM TOTALS 4 TO 10 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN HEAVY SNOW. * IMPACTS...ROADS WILL BE ICY AND SNOWPACKED WITH HAZARDOUS TRAVEL CONDITIONS. VISIBILITIES WILL BE REDUCED AT TIMES DUE TO THE HEAVY SNOWFALL AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ046-152100- /O.CON.KBOU.WW.Y.0030.151215T1200Z-151216T0000Z/ NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF...AGATE...HUGO...LIMON...MATHESON 454 AM MST TUE DEC 15 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...SNOW WILL INCREASE THIS MORNING AND CONTINUE THROUGH THE AFTERNOON BEFORE ENDING BY EARLY TUESDAY EVENING. * SNOW ACCUMULATIONS...STORM TOTALS 2 TO 6 INCHES. * WIND/VISIBILITY...NORTH WINDS WILL INCREASE TO 15 TO 25 MPH BY EARLY TUESDAY MORNING WITH GUSTS TO 35 MPH THROUGH THE AFTERNOON. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN SNOW AND BLOWING SNOW. * IMPACTS...ROADS WILL BECOME ICY AND SNOWPACKED WITH HAZARDOUS TRAVEL CONDITIONS. VISIBILITIES WILL BE REDUCED AT TIMES DUE TO THE HEAVY SNOWFALL AND BLOWING SNOW. 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. && $$
350 WWUS45 KBOU 151617 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 917 AM MST TUE DEC 15 2015 ...SIGNIFICANT WINTER STORM MOVING ACROSS THE PLAINS... .A POWERFUL STORM SYSTEM OVER EAST CENTRAL COLORADO WILL MOVE NORTHEAST INTO SOUTHWEST NEBRASKA THIS AFTERNOON. SNOW...HEAVY AT TIMES ALONG WITH NEAR BLIZZARD CONDITIONS...WILL CONTINUE OVER THE NORTHEAST PLAINS OF COLORADO THROUGH EARLY AFTERNOON BEFORE SLOWLY DECREASING. MEANWHILE...SNOW WILL GRADUALLY DECREASE OVER THE MOUNTAINS AND FRONT RANGE URBAN CORRIDOR LATE THIS MORNING INTO EARLY AFTERNOON. COZ042-044-048>051-160000- /O.CON.KBOU.WS.W.0017.000000T0000Z-151216T0000Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY- WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...BRUSH...FORT MORGAN...GOODRICH...WIGGINS... CROOK...MERINO...STERLING...PEETZ...AKRON...COPE...LAST CHANCE... OTIS...JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 917 AM MST TUE DEC 15 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...SNOW...HEAVY AT TIMES ALONG WITH CONSIDERABLE BLOWING SNOW...WILL CONTINUE INTO EARLY AFTERNOON. SNOW AND WIND WILL DIMINISH BY EARLY THIS EVENING. * SNOW ACCUMULATIONS...STORM TOTALS OF 4 TO 10 INCHES. * WIND/VISIBILITY...NORTH TO NORTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN SNOW AND BLOWING SNOW. NEAR BLIZZARD CONDITIONS CAN BE EXPECTED DURING PERIODS OF HEAVIER FALLING AND BLOWING SNOW. * IMPACTS...TRAVEL IS NOT RECOMMENDED AND WILL BE EXTREMELY HAZARDOUS OVER THE NORTHEAST PLAINS DUE TO THE SNOW AND BLOWING SNOW. TRAVEL SHOULD BE DELAYED IF AT ALL POSSIBLE UNTIL THE SNOW AND BLOWING SNOW SUBSIDE LATE THIS EVENING...ALTHOUGH IT WILL STILL REMAIN HAZARDOUS DUE TO SNOW COVERED ROADS. TRAVEL MAY BE IMPOSSIBLE ON SOME SECONDARY ROADS AND RURAL ROADS DUE TO THE DEPTH OF SNOW AND/OR DRIFTS. 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>041-043-045-152100- /O.CON.KBOU.WS.W.0017.000000T0000Z-151215T2100Z/ 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- CENTRAL AND SOUTH WELD COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- 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...EATON...FORT LUPTON...GREELEY... ROGGEN...BENNETT...BYERS...DEER TRAIL...LEADER 917 AM MST TUE DEC 15 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... * TIMING...SNOW WILL GRADUALLY DECREASE IN INTENSITY THROUGH THE REST OF THE MORNING AND INTO EARLY AFTERNOON. * SNOW ACCUMULATIONS...STORM TOTAL OF 6 TO 12 INCHES...WITH THE HEAVIEST AMOUNTS FROM GREELEY SOUTHWARD INTO THE DENVER METRO AREA. * WIND/VISIBILITY...NORTH 10 TO 20 MPH WITH GUSTS TO 30 MPH. VISIBILITIES MAY BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN HEAVY SNOW AND BLOWING SNOW. * IMPACTS...TRAVEL WILL REMAIN HAZARDOUS DUE TO SNOW...BLOWING SNOW...AND REDUCED VISIBILITIES. TRAVEL IS NOT RECOMMENDED UNTIL THE SNOW DECREASES THIS AFTERNOON. TRAVEL MAY BE IMPOSSIBLE ON SOME SECONDARY ROADS AND RURAL ROADS DUE TO THE DEPTH OF SNOW AND/OR DRIFTS. 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. && $$ COZ031-033-034-046-160000- /O.CON.KBOU.WW.Y.0030.000000T0000Z-151216T0000Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK...AGATE...HUGO...LIMON... MATHESON 917 AM MST TUE DEC 15 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...SNOW WILL CONTINUE THROUGH TODAY. THE INTENSITY OF THE SNOWFALL WILL START TO DECREASE THIS AFTERNOON. * SNOW ACCUMULATIONS...STORM TOTALS 5 TO 12 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN HEAVIER SNOW BANDS. * IMPACTS...TRAVEL WILL BE HAZARDOUS WITH SNOW COVERED ROADS...BLOWING SNOW...AND REDUCED VISIBILITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ035-036-160030- /O.CON.KBOU.WW.Y.0030.000000T0000Z-151216T2100Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND... RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK 917 AM MST TUE DEC 15 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST WEDNESDAY... * TIMING...SNOW WILL GRADUALLY DECREASE IN INTENSITY THROUGH EARLY AFTERNOON. IT WILL STILL BE HEAVY AT TIMES UNTIL LATE MORNING IN SOME OF THE FOOTHILLS OF JEFFERSON AND DOUGLAS COUNTIES. * SNOW ACCUMULATIONS...STORM TOTALS 5 TO 14 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN HEAVY SNOW. * IMPACTS...TRAVEL WILL BE HAZARDOUS WITH SNOW COVERED ROADS...BLOWING SNOW...AND REDUCED VISIBILITIES. 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. && $$
541 WWUS45 KBOU 152112 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 212 PM MST TUE DEC 15 2015 ...WINTER STORM MOVING EAST ACROSS THE PLAINS... .A STRONG STORM SYSTEM WILL MOVE INTO SOUTHWEST NEBRASKA THIS AFTERNOON. SNOW AND NEAR BLIZZARD CONDITIONS OVER THE NORTHEAST PLAINS OF COLORADO WILL SLOWLY IMPROVE FROM THE WEST DURING THE AFTERNOON. SNOW WILL CONTINUE TO DECREASE ALONG THE FRONT RANGE WITH LITTLE ADDITIONAL ACCUMULATION IN THE DENVER AREA AND ANOTHER INCH OR TWO POSSIBLE THIS AFTERNOON IN THE HIGHER MOUNTAINS. WHILE THE SNOW HAS DECREASED...ROAD CONDITIONS REMAIN HAZARDOUS IN MANY AREAS. WHILE CONDITIONS WILL BE IMPROVING ALONG THE FRONT RANGE...DRIVERS SHOULD STILL USE EXTRA CAUTION...ALLOW EXTRA TIME...AND CONSIDER DELAYING TRAVEL A LITTLE LONGER TO ALLOW THE ROADS TO BE CLEARED. COZ038>041-043-045-152215- /O.EXP.KBOU.WS.W.0017.000000T0000Z-151215T2100Z/ 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- CENTRAL AND SOUTH WELD COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- 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...EATON...FORT LUPTON...GREELEY... ROGGEN...BENNETT...BYERS...DEER TRAIL...LEADER 212 PM MST TUE DEC 15 2015 ...WINTER STORM WARNING HAS EXPIRED... LIGHT SNOW WILL CONTINUE TO DIMINISH THIS AFTERNOON...WITH ADDITIONAL ACCUMULATIONS OF AN INCH OR LESS. NORTH WINDS AROUND 20 MPH WILL STILL CAUSE SOME DRIFTING OF SNOW IN OPEN AREAS EAST OF INTERSTATE 25. DRIVERS SHOULD CONTINUE TO USE CAUTION AS ROAD CONDITIONS REMAIN POOR IN MANY AREAS. $$ COZ035-036-152215- /O.CAN.KBOU.WW.Y.0030.000000T0000Z-151216T2100Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND... RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK 212 PM MST TUE DEC 15 2015 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE WINTER WEATHER ADVISORY. OCCASIONAL LIGHT SNOW IS EXPECTED THIS AFTERNOON...WITH ACCUMULATIONS LESS THAN 2 INCHES. DRIVERS SHOULD STILL EXERCISE CAUTION AS ROAD CONDITIONS WILL VARY. $$ COZ042-044-048>051-160000- /O.CON.KBOU.WS.W.0017.000000T0000Z-151216T0000Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY- WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...BRUSH...FORT MORGAN...GOODRICH...WIGGINS... CROOK...MERINO...STERLING...PEETZ...AKRON...COPE...LAST CHANCE... OTIS...JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 212 PM MST TUE DEC 15 2015 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...SNOW WILL GRADUALLY DIMINISH FROM WEST TO EAST THIS AFTERNOON. * SNOW ACCUMULATIONS...STORM TOTALS OF 4 TO 10 INCHES. * WIND/VISIBILITY...NORTH WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH. VISIBILITIES WILL BE REDUCED TO A QUARTER MILE AT TIMES IN SNOW AND BLOWING SNOW. NEAR BLIZZARD CONDITIONS CAN BE EXPECTED DURING PERIODS OF HEAVIER FALLING AND BLOWING SNOW. * IMPACTS...TRAVEL IS NOT RECOMMENDED AND WILL BE EXTREMELY HAZARDOUS OVER THE NORTHEAST PLAINS DUE TO THE SNOW AND BLOWING SNOW. TRAVEL SHOULD BE DELAYED IF AT ALL POSSIBLE UNTIL THE SNOW AND BLOWING SNOW SUBSIDE LATE THIS EVENING... ALTHOUGH IT WILL STILL REMAIN HAZARDOUS DUE TO SNOW COVERED ROADS. TRAVEL MAY BE IMPOSSIBLE ON SOME SECONDARY ROADS AND RURAL ROADS DUE TO THE DEPTH OF SNOW AND/OR DRIFTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ031-033-034-046-160000- /O.CON.KBOU.WW.Y.0030.000000T0000Z-151216T0000Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 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- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...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...AGATE...HUGO...LIMON... MATHESON 212 PM MST TUE DEC 15 2015 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...LIGHT SNOW WILL CONTINUE THIS AFTERNOON. * SNOW ACCUMULATIONS...STORM TOTALS 5 TO 12 INCHES. * WIND/VISIBILITY...VISIBILITIES WILL BE REDUCED TO LESS THAN A QUARTER MILE AT TIMES IN HEAVIER SNOW BANDS. * IMPACTS...TRAVEL WILL BE HAZARDOUS WITH SNOW COVERED ROADS... BLOWING SNOW...AND REDUCED VISIBILITY. 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. && $$ GIMMESTAD
612 WWUS45 KBOU 160007 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 507 PM MST TUE DEC 15 2015 ...WINTER STORM MOVING OUT OF NORTHEASTERN COLORADO... .A STRONG WINTER STORM WILL MOVE EAST ACROSS NEBRASKA AND SOUTH DAKOTA TONIGHT...WHILE LIGHT SNOW AND WIND WILL CONTINUE TO DIMINISH IN COLORADO. WHILE THE SNOW IS DECREASING...ROAD CONDITIONS ARE STILL HAZARDOUS IN MANY AREAS...SO DRIVERS SHOULD CONTINUE TO EXERCISE CAUTION THIS EVENING. COZ042-044-048>051-160115- /O.EXP.KBOU.WS.W.0017.000000T0000Z-151216T0000Z/ NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY- WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...BRUSH...FORT MORGAN...GOODRICH...WIGGINS... CROOK...MERINO...STERLING...PEETZ...AKRON...COPE...LAST CHANCE... OTIS...JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 507 PM MST TUE DEC 15 2015 ...WINTER STORM WARNING HAS EXPIRED... AREAS OF LIGHT SNOW WILL END THIS EVENING AND WINDS WILL DIMINISH. $$ COZ031-033-034-046-160115- /O.EXP.KBOU.WW.Y.0030.000000T0000Z-151216T0000Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 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- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS...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...AGATE...HUGO...LIMON... MATHESON 507 PM MST TUE DEC 15 2015 ...WINTER WEATHER ADVISORY HAS EXPIRED... AREAS OF LIGHT SNOW WILL CONTINUE OVERNIGHT WITH ACCUMULATIONS OF UP TO 3 INCHES. $$ GIMMESTAD
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 Dec 14, 3:12 PM MST, 0 minutes earlier.
Area forecast discussion, Dec 14, 3:12 PM MST, 0 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER/BOULDER CO 312 PM MST MON DEC 14 2015 .SHORT TERM...(THIS EVENING THROUGH TUESDAY) ISSUED AT 257 PM MST MON DEC 14 2015 A LARGE UPPER LOW THAT WILL BE RESPONSIBLE FOR TONIGHT THROUGH TUESDAYS WINTER STORM IS CURRENTLY SPINNING OVER UTAH. WATER VAPOR AND IR SATELLITE SHOWING GOOD LIFT AHEAD OF IT OVER WESTERN COLORADO. THIS AREA OF LIFT WILL PUSH EAST....WITH UPWARD QG VERTICAL VELOCITIES OF 40-50 MB/HR EXPECTED OVERNIGHT...ACROSS NORTHERN COLORADO. SNOW IS ALREADY PUSHING INTO TO THE NORTHERN MOUNTAINS...WITH THE ADVISORY FOR ZONES 31 AND 33 BEGINNING AT 6 PM THIS EVENING. SNOW WILL PUSH EAST THROUGH THE EVENING...WITH A FEW LIGHT SNOW SHOWERS OVER THE URBAN CORRIDOR POSSIBLE AFTER 8 OR 9 PM. NOT EXPECTING TO SEE MUCH ACCUMULATING SNOW FOR THE PLAINS THOUGH UNTIL AFTER MIDNIGHT. RECENT MODEL GUIDANCE HAS INCREASED THE MOISTURE WITH THIS SYSTEM AS WELL AS THE QG LIFT...AND BY SEEING SOME OF THE SNOW ITS BEEN PRODUCING ALREADY OVER UTAH...HAVE INCREASED THE EXPECTED SNOWFALL FOR THE PLAINS. LATEST TWO RUNS OF THE NAM GUIDANCE PUTS ALMOST HALF AN INCH OF LIQUID ALONG AND EAST OF THE URBAN CORRIDOR BETWEEN MIDNIGHT AND TUESDAY MORNING. HAVE INCREASED AMOUNTS SLIGHTLY TO ACCOMMODATE THIS TREND. NORTHERLY WINDS WILL INCREASE OVERNIGHT BUT ESPECIALLY TUESDAY. THIS WILL NORMALLY DOWNSLOPE THE NORTHERN FRONT RANGE URBAN CORRIDOR...BUT HAVE SIDED WITH THE MODERATE TO STRONG AMOUNT OF QG TO OVERCOME SOME OF THIS. THEREFORE...EXPECTING 2 TO 5 INCHES OF SNOW ALONG THE URBAN CORRIDOR...GREATER AMOUNTS TO THE NORTH AND EAST....THEN EXPECTING 3 TO 7 INCHES OVER THE FAR NORTHEAST PLAINS. COMBINING THE INCREASING NORTHERLY WINDS WITH GUSTS OF 25 TO 40 MPH ACROSS THE PLAINS...HAVE DECIDED TO ISSUE AN ADVISORY FOR MOST OF THE URBAN CORRIDOR AND A WARNING FOR THE NORTHEAST PLAINS. HAVE LEFT OUT ZONE 39 INCLUDING BOULDER AND GOLDEN AS THE WINDS WILL BE MUCH LIGHTER AND LESS SNOW IS EXPECTED. ZONE 41...THE PALMER DIVIDE WAS INCLUDED DUE TO THE STRONG WINDS THAT WILL PRODUCE BLOWING SNOW...EVEN THOUGH ONLY 2 TO 4 INCHES OF SNOW IS EXPECTED THERE. EXPECT TUESDAYS WEATHER TO BE DIFFICULT TO TRAVEL IN WITH THE BLOWING AND DRIFTING SNOW AS WELL. TEMPERATURES WILL DROP INTO THE LOW TO MID 20S TONIGHT AND BARELY WARM IF AT ALL TOMORROW. THIS WILL CREATE WIND CHILL TEMPERATURES AROUND 10 DEGREES FOR THE EASTERN PLAINS. FOR THE MOUNTAINS...STILL EXPECTING 6 TO 12 INCHES FOR THE NORTHERN MOUNTAINS AND 5 TO 10 INCHES FOR THE MOUNTAINS ALONG AND SOUTH OF I- 70. HIGH MOUNTAIN VALLEYS AND FOOTHILLS SHOULD SEE 3 TO 6 INCHES...WITH SLIGHTLY HIGHER AMOUNTS POSSIBLE OVER NORTH PARK AND THE NORTHERN FOOTHILLS. .LONG TERM...(TUESDAY NIGHT THROUGH MONDAY) ISSUED AT 257 PM MST MON DEC 14 2015 THE UPPER LEVEL LOW WILL BE MAKING ITS WAY OFF TO THE NE ENDING SNOWFALL ON THE PLAINS BY WEDNESDAY MORNING. MODELS INDICATING DOWNSLOPING OVER THE FOOTHILLS HELPING TO END SNOW AND KEEP TEMPERATURES SLIGHTLY WARMER THAN FURTHER EAST...ALTHOUGH STILL EXPECT TEMPERATURES TO STAY AROUND FREEZING. SNOW WILL REMAIN IN THE MOUNTAINS UNDER A MOIST NW FLOW WITH AMOUNTS WILL BE VERY LIGHT. WEDNESDAY NIGHT INTO THURSDAY...A WEAK WAVE EMBEDDED IN THE FLOW WITH AN UPPER LEVEL JET AND SOME WEAK QG WILL BRING INCREASING SNOW AMOUNTS TO THE MOUNTAINS BY LATE WEDNESDAY NIGHT AND LIGHT SNOWFALL FOR THE FRONT RANGE BY THURSDAY AFTERNOON. NAM AND GFS STILL INDICATING SOME DOWNSLOPING THROUGH THURSDAY MORNING BUT UPPER LEVEL JET AND QG COULD BE ENOUGH LIFT TO BRING LIGHT SNOW BY THE AFTERNOON. WILL MAINTAIN A SLIGHT CHANCE WITH LITTLE ACCUMULATION IN THIS AREA. TEMPERATURES WILL STAY BELOW NORMAL WITH HIGHS DROPPING INTO THE 20S ON THURSDAY FOR THE PLAINS AND LOWS OVERNIGHT IN THE LOW TEENS. FRIDAY WILL BE A TRANSITIONAL DAY AS THE WAVE AND ACCOMPANYING JET MOVE EASTWARD AND AN UPPER LEVEL RIDGE BUILDING IN FROM THE WEST. THE PLAINS WILL BE DRY AS A LEE SIDE TROUGH SETS UP WITH TEMPERATURE REBOUNDING BACK INTO THE 40S. THERE IS STILL SOME LINGERING MOISTURE IN THE NW FLOW SO WILL MAINTAIN LIGHT POPS FOR THE MOUNTAINS BUT SNOW WILL BE VERY LIGHT AND ENDING BY FRIDAY AFTERNOON. FOR THE WEEKEND THE UPPER LEVEL RIDGE MOVES IN TURNING FLOW MORE SOUTHWESTERLY. THIS WILL START A DRIER AND WARMER TREND TO THE FORECAST. TEMPERATURES FOR SATURDAY AND SUNDAY WILL BE IN THE UPPER 40S TO LOWER 50S FOR THE PLAINS. FOR THE MOUNTAINS THE NEXT CHANCE FOR SNOW WILL BE SUNDAY EVENING AS MOISTURE INCREASES AHEAD OF THE NEXT SYSTEM. && .AVIATION...(FOR THE 00Z TAFS THROUGH 00Z TUESDAY EVENING) ISSUED AT 257 PM MST MON DEC 14 2015 VFR CONDITIONS THROUGH AT LEAST 03Z BEFORE MVFR CIGS POSSIBLE THROUGH 06Z...THEN AROUND 06Z IFR CIG/VSBY RESTRICTION DUE TO DEVELOPING SNOW. COULD BE SOME BRIEF HEAVIER SNOWFALL BETWEEN 09Z- 15Z. NORTHERLY WINDS WILL BE INCREASING TO 15-20KTS WITH GUSTS TO 30KT POSSIBLE OVER KDEN....SLIGHTLY WEAKER FOR AIRPORTS WEST OF THERE. THIS MAY CAUSE VISIBILITY RESTRICTIONS IN BLOWING SNOW. && .BOU WATCHES/WARNINGS/ADVISORIES... WINTER STORM WARNING FROM 5 AM TO 5 PM MST TUESDAY FOR COZ042- 044-048>051. WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 5 PM MST TUESDAY FOR COZ031-033. WINTER WEATHER ADVISORY FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY FOR COZ038-040-041-043-045. && SHORT TERM...KRIEDERMAN LONG TERM...BOWEN AVIATION...KRIEDERMAN
Hazardous weather outlook, Dec 14, 11:02 AM MST, 4 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1102 AM MST MON DEC 14 2015 COZ030>051-151815- 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- 1102 AM MST MON DEC 14 2015 ...HEAVY SNOW POSSIBLE FOR THE MOUNTAINS NORTH OF I-70 AND FAR NORTHEAST PLAINS TONIGHT AND TUESDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT A PACIFIC STORM SYSTEM WILL MAKE ITS WAY INTO SOUTHEASTERN COLORADO BY LATE TONIGHT. IT WILL BE DRY OVER THE NORTHEAST PLAINS TODAY WITH SEASONAL TEMPERATURES BUT AREAS OF LIGHT SNOW WILL DEVELOP IN THE MOUNTAINS LATE THIS AFTERNOON. THE SNOW WILL INCREASE IN COVERAGE AND INTENSITY OVER THE MOUNTAINS THIS EVENING...BECOMING HEAVY AT TIMES OVERNIGHT. ACROSS THE NORTHEAST PLAINS...THERE MAY BE A MIX OF LIGHT FREEZING DRIZZLE AND SNOW FLURRIES EARLY THIS EVENING. SNOW WILL THEN BECOME MORE WIDESPREAD AROUND AND AFTER MIDNIGHT... SNOW WILL BECOME HEAVY AT TIMES OVER THE FAR NORTHEAST PLAINS NEAR THE WYOMING AND NEBRASKA BORDERS NEAR SUNRISE ON TUESDAY. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SNOW WILL BE WIDESPREAD TUESDAY MORNING AS A LOW PRESSURE SYSTEM MOVES ACROSS EASTERN COLORADO. SNOW WILL END LATE TUESDAY MORNING AND TUESDAY AFTERNOON ALONG THE FOOTHILLS AND BY TUESDAY EVENING ON THE PLAINS. TOTAL SNOWFALL WILL BE 2 TO 6 INCHES ALONG THE FRONT RANGE WITH 3 TO 7 INCHES POSSIBLE OVER THE NORTHEAST CORNER OF COLORADO. THE MOUNTAINS OF NORTH CENTRAL COLORADO ARE EXPECTED TO SEE 6 TO 12 INCHES OF SNOW...WITH SLIGHTLY LESSER AMOUNTS IN THE VALLEYS AND IN THE MOUNTAINS ALONG AND SOUTH OF INTERSTATE 70. GUSTY NORTH WINDS ARE EXPECTED TO PRODUCE AREAS OF BLOWING AND DRIFTING SNOW OVER THE NORTHEAST PLAINS ON TUESDAY. NORTHWEST FLOW ALOFT WILL BRING PERIODS OF LIGHT SNOW TO THE MOUNTAINS WEDNESDAY AND THURSDAY. THERE WILL BE A SLIGHT CHANCE FOR LIGHT SNOW THURSDAY ALONG THE FRONT RANGE DUE TO A WEAK DISTURBANCE EMBEDDED IN THE FLOW ALOFT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 14, 3:45 AM MST | Winter Storm Watch | BOU | Logan, Morgan, Phillips, Sedgwick, Washington, Weld | 11 hr |
| Dec 14, 3:45 AM MST | Winter Weather Advisory | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 11 more | 37 hr |
Nearby
Winter Storm Warnings in Colorado, 2015Every winter storm warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.