Alert archive / Colorado / Winter Storm Watches in 2017
Winter Storm Watch 2, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm watch at Jan 3, 2017, 3:08 PM MST for 9 counties in Colorado. It took effect at Jan 4, 2017, 11:00 AM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Jan 3, 2017, 3:08 PM MST (22:08 UTC)
- In effect from
- Jan 4, 2017, 11:00 AM MST
- Expired
- Jan 4, 2017, 5:03 AM MST
- In force
- Issued by
- NWS Denver/Boulder, CO
Counties Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Douglas County, CO, Gilpin County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 62 km from the middle of the area, began a volume at 22:09 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.
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 10.1 hours before the alert went out and 173 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
- 624 m above ground
- 0-6 km bulk shear
- 113 kt
- 0-1 km storm-relative helicity
- 164 m²/s²
- 0-3 km storm-relative helicity
- 430 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
854 WWUS45 KBOU 032208 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 308 PM MST TUE JAN 3 2017 .PERIODS OF SNOW WILL CONTINUE IN THE MOUNTAINS THROUGH THURSDAY WITH HEAVY SNOW AT TIMES TONIGHT THROUGH THURSDAY MORNING IN SOME AREAS. HEAVY SNOW WILL ALSO DEVELOP IN AND NEAR THE FRONT RANGE FOOTHILLS WEDNESDAY AFTERNOON AND CONTINUE INTO WEDNESDAY NIGHT. ACROSS NORTHEAST COLORADO SNOW WILL INCREASE NEAR THE WYOMING BORDER BY WEDNESDAY MORNING AND THEN SPREAD SOUTHWARD ACROSS THE FRONT RANGE BY AFTERNOON INTO WEDNESDAY EVENING. THERE IS SOME POTENTIAL FOR HEAVIER SNOW ALONG PORTIONS OF THE FRONT RANGE WEDNESDAY NIGHT. THE SNOW WILL CONTINUE INTO THURSDAY MORNING BUT SHOULD BEGIN TO DECREASE FROM NORTH TO SOUTH BY THURSDAY AFTERNOON. COZ030-032-040615- /O.UPG.KBOU.WS.A.0001.170104T1200Z-170105T1800Z/ /O.EXB.KBOU.WS.W.0001.170104T1200Z-170105T1800Z/ 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, AND KREMMLING 308 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW, WHICH IS IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW WILL INCREASE TONIGHT AND CONTINUE THROUGH THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES WEDNESDAY THROUGH WEDNESDAY NIGHT. * SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND/VISIBILITY...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ035-040615- /O.UPG.KBOU.WS.A.0001.170104T1200Z-170105T1800Z/ /O.EXB.KBOU.WS.W.0001.170104T1200Z-170105T1800Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- INCLUDING THE CITIES OF ESTES PARK, GLENDEVEY, NEDERLAND, AND RED FEATHER LAKES 308 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW, WHICH IS IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW WILL INCREASE LATE TONIGHT AND CONTINUE THROUGH THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES WEDNESDAY THROUGH WEDNESDAY NIGHT. * SNOW ACCUMULATIONS...8 TO 16 INCHES. * WIND/VISIBILITY...WEST 10 TO 20 MPH IN THE MORNING BECOMING NORTHEAST 10 TO 20 MPH IN THE AFTERNOON. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ034-040615- /O.UPG.KBOU.WS.A.0001.170104T1200Z-170106T0000Z/ /O.EXA.KBOU.WS.W.0001.170104T0100Z-170105T1800Z/ 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, AND WINTER PARK 308 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW, WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW WILL INCREASE LATE TONIGHT AND CONTINUE THROUGH THURSDAY. THE SNOW MAY BE HEAVY AT TIMES WEDNESDAY THROUGH THURSDAY MORNING. * SNOW ACCUMULATIONS...10 TO 20 INCHES. * WIND/VISIBILITY...WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ031-033-040615- /O.CON.KBOU.WS.W.0001.170104T0100Z-170105T1800Z/ /O.CON.KBOU.WW.Y.0001.000000T0000Z-170104T0100Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS, RABBIT EARS PASS, CAMERON PASS, LARAMIE AND MEDICINE BOW MOUNTAINS, RABBIT EARS RANGE, ROCKY MOUNTAIN NATIONAL PARK, AND WILLOW CREEK PASS 308 PM MST TUE JAN 3 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 11 AM MST THURSDAY... * TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE THIS AFTERNOON, THEN INCREASE TONIGHT WITH LOCALLY HEAVIER BANDS OF SNOW CONTINUING THROUGH EARLY THURSDAY. * SNOW ACCUMULATIONS...12 TO 24 INCHES WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND/VISIBILITY...WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ036-038-039-040615- /O.NEW.KBOU.WS.A.0002.170104T1800Z-170106T0000Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF BAILEY, CENTRAL CITY, EVERGREEN, GEORGETOWN, IDAHO SPRINGS, WESTCREEK, FORT COLLINS, HEREFORD, LOVELAND, NUNN, ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT 308 PM MST TUE JAN 3 2017 ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WATCH, WHICH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY AFTERNOON. * TIMING...SNOW WILL BY LATE WEDNESDAY MORNING BECOMING HEAVY AT TIMES WEDNESDAY NIGHT. * SNOW ACCUMULATIONS...6 TO 12 INCHES. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY ESPECIALLY DURING THE COMMUTES WEDNESDAY EVENING AND THURSDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
4 follow-up statements
282 WWUS45 KBOU 040102 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 602 PM MST TUE JAN 3 2017 .PERIODS OF SNOW WILL CONTINUE IN THE MOUNTAINS THROUGH THURSDAY WITH HEAVY SNOW AT TIMES TONIGHT THROUGH THURSDAY MORNING IN SOME AREAS. HEAVY SNOW WILL ALSO DEVELOP IN AND NEAR THE FRONT RANGE FOOTHILLS WEDNESDAY AFTERNOON AND CONTINUE INTO WEDNESDAY NIGHT. ACROSS NORTHEAST COLORADO SNOW WILL INCREASE NEAR THE WYOMING BORDER BY WEDNESDAY MORNING AND THEN SPREAD SOUTHWARD ACROSS THE FRONT RANGE BY AFTERNOON INTO WEDNESDAY EVENING. THERE IS SOME POTENTIAL FOR HEAVIER SNOW ALONG PORTIONS OF THE FRONT RANGE WEDNESDAY NIGHT. THE SNOW WILL CONTINUE INTO THURSDAY MORNING BUT SHOULD BEGIN TO DECREASE FROM NORTH TO SOUTH BY THURSDAY AFTERNOON. COZ031-033-040915- /O.EXP.KBOU.WW.Y.0001.000000T0000Z-170104T0100Z/ /O.CON.KBOU.WS.W.0001.000000T0000Z-170105T1800Z/ 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, AND WILLOW CREEK PASS 602 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... ...WINTER WEATHER ADVISORY HAS EXPIRED... * TIMING...LIGHT TO MODERATE SNOW WILL CONTINUE THIS EVENING, THEN INCREASE LATER TONIGHT WITH LOCALLY HEAVIER BANDS OF SNOW CONTINUING THROUGH EARLY THURSDAY. * SNOW ACCUMULATIONS...12 TO 24 INCHES WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND/VISIBILITY...WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. 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. && $$ COZ034-040915- /O.CON.KBOU.WS.W.0001.000000T0000Z-170105T1800Z/ 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, AND WINTER PARK 602 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE LATE TONIGHT AND CONTINUE THROUGH THURSDAY. THE SNOW MAY BE HEAVY AT TIMES WEDNESDAY THROUGH THURSDAY MORNING. * SNOW ACCUMULATIONS...10 TO 20 INCHES. * WIND/VISIBILITY...WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ030-032-040915- /O.CON.KBOU.WS.W.0001.170104T1200Z-170105T1800Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF GOULD, NORTH PARK, RAND, SPICER, WALDEN, DILLON, FRASER, GRANBY, GRAND LAKE, HOT SULPHUR SPRINGS, AND KREMMLING 602 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE TONIGHT AND CONTINUE THROUGH THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES WEDNESDAY THROUGH WEDNESDAY NIGHT. * SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND/VISIBILITY...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ035-040915- /O.CON.KBOU.WS.W.0001.170104T1200Z-170105T1800Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- INCLUDING THE CITIES OF ESTES PARK, GLENDEVEY, NEDERLAND, AND RED FEATHER LAKES 602 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE LATE TONIGHT AND CONTINUE THROUGH THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES WEDNESDAY THROUGH WEDNESDAY NIGHT. * SNOW ACCUMULATIONS...8 TO 16 INCHES. * WIND/VISIBILITY...WEST 10 TO 20 MPH IN THE MORNING BECOMING NORTHEAST 10 TO 20 MPH IN THE AFTERNOON. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ036-038-039-040915- /O.CON.KBOU.WS.A.0002.170104T1800Z-170106T0000Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF BAILEY, CENTRAL CITY, EVERGREEN, GEORGETOWN, IDAHO SPRINGS, WESTCREEK, FORT COLLINS, HEREFORD, LOVELAND, NUNN, ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT 602 PM MST TUE JAN 3 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY AFTERNOON... * TIMING...SNOW WILL BY LATE WEDNESDAY MORNING BECOMING HEAVY AT TIMES WEDNESDAY NIGHT. * SNOW ACCUMULATIONS...6 TO 12 INCHES. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY ESPECIALLY DURING THE COMMUTES WEDNESDAY EVENING AND THURSDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
291 WWUS45 KBOU 040251 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 751 PM MST TUE JAN 3 2017 .LIGHT SNOW WILL BECOME MORE WIDESPREAD AGAIN IN THE MOUNTAINS LATER TONIGHT WITH HEAVY SNOW POSSIBLE AT TIMES WEDNESDAY THROUGH THURSDAY MORNING. HEAVY SNOW WILL ALSO DEVELOP IN AND NEAR THE FRONT RANGE FOOTHILLS WEDNESDAY AFTERNOON AND CONTINUE INTO WEDNESDAY NIGHT. ACROSS NORTHEAST COLORADO...SNOW WILL INCREASE NEAR THE WYOMING BORDER BY WEDNESDAY MORNING AND THEN SPREAD SOUTHWARD ACROSS THE FRONT RANGE BY AFTERNOON INTO WEDNESDAY EVENING. THERE IS SOME POTENTIAL FOR HEAVIER SNOW ALONG PORTIONS OF THE FRONT RANGE WEDNESDAY NIGHT. THE SNOW WILL CONTINUE INTO THURSDAY MORNING BUT SHOULD BEGIN TO DECREASE FROM NORTH TO SOUTH BY THURSDAY AFTERNOON. COZ031-033-034-041100- /O.CON.KBOU.WS.W.0001.000000T0000Z-170105T1800Z/ 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, AND WINTER PARK 751 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE LATE TONIGHT AND CONTINUE THROUGH THURSDAY. THE SNOW MAY BE HEAVY AT TIMES WEDNESDAY THROUGH THURSDAY MORNING. * SNOW ACCUMULATIONS...10 TO 20 INCHES. * WIND/VISIBILITY...WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ030-032-041100- /O.CON.KBOU.WS.W.0001.170104T1200Z-170105T1800Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF GOULD, NORTH PARK, RAND, SPICER, WALDEN, DILLON, FRASER, GRANBY, GRAND LAKE, HOT SULPHUR SPRINGS, AND KREMMLING 751 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE LATER TONIGHT AND CONTINUE THROUGH THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES WEDNESDAY THROUGH WEDNESDAY NIGHT. * SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND/VISIBILITY...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ035-041100- /O.CON.KBOU.WS.W.0001.170104T1200Z-170105T1800Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- INCLUDING THE CITIES OF ESTES PARK, GLENDEVEY, NEDERLAND, AND RED FEATHER LAKES 751 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE LATE TONIGHT AND CONTINUE THROUGH THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES WEDNESDAY THROUGH WEDNESDAY NIGHT. * SNOW ACCUMULATIONS...8 TO 16 INCHES. * WIND/VISIBILITY...WEST 10 TO 20 MPH IN THE MORNING BECOMING NORTHEAST 10 TO 20 MPH IN THE AFTERNOON. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ036-038-039-041100- /O.CON.KBOU.WS.A.0002.170104T1800Z-170106T0000Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF BAILEY, CENTRAL CITY, EVERGREEN, GEORGETOWN, IDAHO SPRINGS, WESTCREEK, FORT COLLINS, HEREFORD, LOVELAND, NUNN, ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT 751 PM MST TUE JAN 3 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY AFTERNOON... * TIMING...SNOW WILL DEVELOP BY LATE WEDNESDAY MORNING BECOMING HEAVY AT TIMES WEDNESDAY NIGHT. * SNOW ACCUMULATIONS...6 TO 12 INCHES. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY ESPECIALLY DURING THE COMMUTES WEDNESDAY EVENING AND THURSDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
251 WWUS45 KBOU 040554 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1054 PM MST TUE JAN 3 2017 .LIGHT SNOW WILL BECOME MORE WIDESPREAD AGAIN IN THE MOUNTAINS LATER TONIGHT WITH HEAVY SNOW POSSIBLE AT TIMES WEDNESDAY THROUGH THURSDAY MORNING. HEAVY SNOW WILL ALSO DEVELOP IN AND NEAR THE FRONT RANGE FOOTHILLS WEDNESDAY AFTERNOON AND CONTINUE INTO WEDNESDAY NIGHT. ACROSS NORTHEAST COLORADO...SNOW WILL INCREASE NEAR THE WYOMING BORDER BY WEDNESDAY MORNING AND THEN SPREAD SOUTHWARD ACROSS THE FRONT RANGE BY AFTERNOON INTO WEDNESDAY EVENING. THERE IS SOME POTENTIAL FOR HEAVIER SNOW ALONG PORTIONS OF THE FRONT RANGE WEDNESDAY NIGHT. THE SNOW WILL DECREASE FROM NORTH TO SOUTH THURSDAY AFTERNOON. COZ031-033-034-041400- /O.CON.KBOU.WS.W.0001.000000T0000Z-170105T1800Z/ 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, AND WINTER PARK 1054 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE LATE TONIGHT AND CONTINUE THROUGH THURSDAY. THE SNOW MAY BE HEAVY AT TIMES WEDNESDAY THROUGH THURSDAY MORNING. * SNOW ACCUMULATIONS...10 TO 20 INCHES. * WIND/VISIBILITY...WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ030-032-041400- /O.CON.KBOU.WS.W.0001.170104T1200Z-170105T1800Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF GOULD, NORTH PARK, RAND, SPICER, WALDEN, DILLON, FRASER, GRANBY, GRAND LAKE, HOT SULPHUR SPRINGS, AND KREMMLING 1054 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE LATER TONIGHT AND CONTINUE THROUGH THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES WEDNESDAY THROUGH WEDNESDAY NIGHT. * SNOW ACCUMULATIONS...6 TO 12 INCHES WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND/VISIBILITY...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ035-041400- /O.CON.KBOU.WS.W.0001.170104T1200Z-170105T1800Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- INCLUDING THE CITIES OF ESTES PARK, GLENDEVEY, NEDERLAND, AND RED FEATHER LAKES 1054 PM MST TUE JAN 3 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM WEDNESDAY TO 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE LATE TONIGHT AND CONTINUE THROUGH THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES WEDNESDAY THROUGH WEDNESDAY NIGHT. * SNOW ACCUMULATIONS...8 TO 16 INCHES. * WIND/VISIBILITY...WEST 10 TO 20 MPH IN THE MORNING BECOMING NORTHEAST 10 TO 20 MPH IN THE AFTERNOON. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ036-038-039-041400- /O.CON.KBOU.WS.A.0002.170104T1800Z-170106T0000Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF BAILEY, CENTRAL CITY, EVERGREEN, GEORGETOWN, IDAHO SPRINGS, WESTCREEK, FORT COLLINS, HEREFORD, LOVELAND, NUNN, ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT 1054 PM MST TUE JAN 3 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY AFTERNOON... * TIMING...SNOW WILL DEVELOP BY LATE WEDNESDAY MORNING BECOMING HEAVY AT TIMES WEDNESDAY NIGHT. * SNOW ACCUMULATIONS...6 TO 12 INCHES. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY ESPECIALLY DURING THE COMMUTES WEDNESDAY EVENING AND THURSDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
092 WWUS45 KBOU 041203 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 503 AM MST WED JAN 4 2017 .MOISTURE LEVELS OVER COLORADO WILL BE INCREASING TODAY AS A STRONG PACIFIC STORM SYSTEM APPROACHES THE STATE FROM THE WEST. MOUNTAIN AREAS WILL CONTINUE RECEIVING SNOWFALL TODAY, WHICH COULD BECOME HEAVY AT TIMES LATER THIS AFTERNOON AND TONIGHT. HEAVY SNOW WILL ALSO DEVELOP OVER AND NEAR THE FRONT RANGE FOOTHILLS THIS AFTERNOON AND CONTINUE OVERNIGHT. ACROSS NORTHEAST COLORADO...SNOW WILL INCREASE NEAR THE WYOMING BORDER LATER THIS MORNING AND THEN SPREAD SOUTHWARD ACROSS THE FRONT RANGE DURING THE AFTERNOON AND EVENING. THERE IS SOME POTENTIAL FOR HEAVIER SNOW ALONG PORTIONS OF THE FRONT RANGE TONIGHT. THE SNOW WILL DECREASE FROM NORTH TO SOUTH THURSDAY. COZ036-038-039-042015- /O.UPG.KBOU.WS.A.0002.170104T1800Z-170106T0000Z/ /O.EXB.KBOU.WS.W.0001.170104T2100Z-170105T1800Z/ JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF BAILEY, CENTRAL CITY, EVERGREEN, GEORGETOWN, IDAHO SPRINGS, WESTCREEK, FORT COLLINS, HEREFORD, LOVELAND, NUNN, ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT 503 AM MST WED JAN 4 2017 ...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW, WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 AM MST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...SNOW WILL DEVELOP THIS AFTERNOON AND BECOME HEAVY AT TIMES TONIGHT. * SNOW ACCUMULATIONS...6 TO 10 INCHES...POSSIBLY UP TO 14 INCHES IN AND NEAR THE FOOTHILLS. * WIND/VISIBILITY...NORTHEAST WINDS 10 TO 20 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY...ESPECIALLY DURING THE WEDNESDAY EVENING AND THURSDAY MORNING COMMUTES. 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. && $$ COZ040-041-043-042015- /O.EXB.KBOU.WS.W.0001.170104T2100Z-170105T1800Z/ NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY- INCLUDING THE CITIES OF AURORA, BRIGHTON, CITY OF DENVER, DENVER INTERNATIONAL AIRPORT, HIGHLANDS RANCH, LITTLETON, PARKER, CASTLE ROCK, ELBERT, FONDIS, KIOWA, LARKSPUR, EATON, FORT LUPTON, GREELEY, AND ROGGEN 503 AM MST WED JAN 4 2017 ...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOWFALL, WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 AM MST THURSDAY. * TIMING...SNOW WILL DEVELOP LATE THIS AFTERNOON AND CONTINUE THROUGH THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES OVERNIGHT. * SNOW ACCUMULATIONS...8 TO 12 INCHES. * WIND/VISIBILITY...WEST 10 TO 20 MPH IN THE MORNING BECOMING NORTHEAST 10 TO 15 MPH IN THE AFTERNOON. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ COZ031-033-034-042015- /O.CON.KBOU.WS.W.0001.000000T0000Z-170105T1800Z/ 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, AND WINTER PARK 503 AM MST WED JAN 4 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE TODAY AND CONTINUE THROUGH TONIGHT. THE SNOW MAY BE HEAVY AT TIMES. * SNOW ACCUMULATIONS...12 TO 18 INCHES. * WIND/VISIBILITY...WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ030-032-042015- /O.CON.KBOU.WS.W.0001.000000T0000Z-170105T1800Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF GOULD, NORTH PARK, RAND, SPICER, WALDEN, DILLON, FRASER, GRANBY, GRAND LAKE, HOT SULPHUR SPRINGS, AND KREMMLING 503 AM MST WED JAN 4 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE TODAY AND CONTINUE THROUGH THURSDAY MORNING. THE SNOW MAY BE HEAVY AT TIMES THIS AFTERNOON AND TONIGHT. * SNOW ACCUMULATIONS...8 TO 12 INCHES WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND/VISIBILITY...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL AND BLOWING SNOW. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ COZ035-042015- /O.CON.KBOU.WS.W.0001.000000T0000Z-170105T1800Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- INCLUDING THE CITIES OF ESTES PARK, GLENDEVEY, NEDERLAND, AND RED FEATHER LAKES 503 AM MST WED JAN 4 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY... * TIMING...SNOW WILL INCREASE THROUGH TODAY AND CONTINUE OVERNIGHT. THE SNOW MAY BE HEAVY AT TIMES. * SNOW ACCUMULATIONS...10 TO 16 INCHES. * WIND/VISIBILITY...WEST 10 TO 20 MPH IN THE MORNING BECOMING NORTHEAST 10 TO 20 MPH IN THE AFTERNOON. VISIBILITIES WILL BE REDUCED TO LESS THAN ONE QUARTER MILE DURING THE PERIODS OF HEAVIER SNOWFALL. * IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS AND POOR VISIBILITY. IF TRAVELING INTO THE COLORADO HIGH COUNTRY, BE SURE TO HAVE ADEQUATE SNOW TIRES AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION SAFELY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$
What forecasters said that day
The local office's own words before this winter storm watch 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 watch went out at Jan 3, 5:00 AM MST, 10 hours 8 minutes earlier.
Area forecast discussion, Jan 3, 5:00 AM MST, 10 hours 8 minutes before
Area Forecast Discussion National Weather Service Denver/Boulder CO 500 AM MST Tue Jan 3 2017 .SHORT TERM...(Today and tonight) Issued at 500 AM MST Tue Jan 3 2017 A band of light to moderate snow developed over southeastern Larimer and northern Weld Counties around 1 AM this morning which is still on the radar. One to 3 inches of snow has probably fallen out of this feature already. An upper level jet over the state helped to organize the band. Some parts of the mountains have also received a few inches of snow, based on web camera data. But several locations have also not received any snow. Radar data from KGJX show quite a bit of moisture and potential instability still upstream from us. With the upper level jet remaining over the state through today, snow is expected to continue in the mountain areas. Plains locations are expected to see a decrease in snow through the morning, as model cross sections show a drier airmass developing due to westerly flow and diurnally warming temperatures being able to absorb the moisture coming in from the west. At low levels, easterly flow will continue today across the plains as high pressure builds over the central plains. As mountains areas continue to receive snow today will let the Winter Weather Advisory continue through its planned expiration at 6 PM this evening. Additional Pacific moisture is expected to begin moving into western and central Colorado later tonight which will continue through Wednesday and into Thursday. Snowfall intensity is expected to increase overnight with the arrival of this moisture, and a Winter Storm Warning will go into effect at 6 PM. Additional snowfall on the plains is not expected until sometime later tomorrow. See below. Temperatures will be the other big story over the next few days, as we remain below freezing today, and drop to near zero overnight tonight. .LONG TERM...(Wednesday through Monday) Issued at 500 AM MST Tue Jan 3 2017 Rather complicated wx ptrn thru Thursday as abundant moisture in wnw flow aloft moves across the area. Position of upper level jet and EPV from cross-sections show potential for extended period of banded pcpn across the higher terrain Wed into early Thu with favorable orographic flow. Thus could see several inches of snow in the mtns and across portions of the higher valleys as well. Will keep warnings going in the mtns north of I-70 through Thursday morning with a watch south of I-70 for Wed into Thu and across the higher valleys. At lower elevations a secondary surge of colder air will move across the plains Wed aftn into Wed night and enhance upslope flow in the foothills and along the front range. Meanwhile as mentioned above with position of upper level jet and potential banding of pcpn nrn foothills could see heavy snow especially Wed aftn into early Thu so have issued a watch. Along the front range snow will gradually spread fm the WY border southward during the aftn and should cover much of the area by Wed evening. SREF Plume data and CIPS Guidance show some potential for heavy snow along and west of I-25 from Denver north to the WY border especially Wed night. Confidence is not high enough to issue a watch at this point but advisory amounts certainly look like a high probability across much of the front range by early Thu. As for highs on Wed will have readings only in the teens nr the WY-CO border with upper 20s to lower 30s further south across the palmer divide. On Thu an upper level trough will gradually spread sse across the area as upslope component weakens. Areas of snow will continue across the higher terrain and along the front range Thu morning but should gradually end fm north to south by aftn as drier air begins to move into the area fm the north. Highs on Thu will stay in the teens across the plains and could be even colder if cloud cover lingers thru the aftn. In fact latest ECMWF only has highs in the single digits across nern CO. For Thu night into early Fri there are some differences between the ECMWF and GFS. The ECMWF quickly ends pcpn in the mtns by Thu evening as the upper level trough and associated drier air moves south of the area. Meanwhile the GFS is slower with the upper level trough and has snow continuing overnight into early Fri along and south of I-70 in the mtns...srn foothills and palmer divide. At this point would probably favor the ECMWF since the Canadian also shows a similar solution so will trend towards lower pops. As for highs on Fri with expected snow pack and inversions models may be too optimistic with highs over nern CO which may stay in the 15 to 20 range in those areas with snow cover. By Fri night into Sat dry air in wnw flow aloft will be over the area as cold sfc high pressure moves eastward. Thus should see some moderation in highs over nern CO with readings in the lower to mid 30s except 20s where inversions hold. On Sun the flow aloft will become more wly with some moisture embedded in the flow so will keep in a slight chc of snow in the mtns with dry conditions elsewhere. Warmer temps will occur over nern CO as downslope flow occurs as readings rise into the 40s with lower 50s possible around Denver. For Mon the flow aloft will become more swly as an upper level ridge builds across the srn Rockies. Some moisture may be embedded in the flow so wil leave in low pops in the mtns. Temperatures over nern CO will be in the 50s. && .AVIATION...(For the 12Z TAFS through 12Z Wednesday morning) Issued at 500 AM MST Tue Jan 3 2017 Light snow flurries that have developed in the shallow easterly winds this morning will last for a few more hours. Flurries are expected to end by mid morning with ceilings lifting through the day. Ceilings will drop again tonight, but additional snow is not expected until Wednesday afternoon. && .BOU WATCHES/WARNINGS/ADVISORIES... Winter Weather Advisory until 6 PM MST this evening for COZ031- 033. Winter Storm Warning from 6 PM this evening to 11 AM MST Thursday for COZ031-033. Winter Storm Watch from late tonight through Thursday morning for COZ030-032-035. Winter Storm Watch from late tonight through Thursday afternoon for COZ034. && SHORT TERM...Dankers LONG TERM...RPK AVIATION...Dankers
Hazardous weather outlook, Jan 3, 5:46 AM MST, 9 hours 22 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER/BOULDER CO 546 AM MST TUE JAN 3 2017 COZ030>051-041300- 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- 546 AM MST TUE JAN 3 2017 ...WINTER STORM WARNING FOR THE MOUNTAINS NORTH OF I-70 TONIGHT THROUGH THURSDAY MORNING... ...WINTER STORM WATCH FOR THE MOUNTAINS ALONG AND SOUTH OF I-70 LATE TONIGHT THROUGH THURSDAY AFTERNOON... ...WINTER STORM WATCH FOR THE HIGHER VALLEYS AND NORTHERN FOOTHILLS FOR LATE TONIGHT THROUGH THURSDAY MORNING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT COLD AIR ASSOCIATED WITH A CANADIAN COLD FRONT HAS MOVED INTO NORTHERN COLORADO THIS MORNING. THIS WILL KEEP TEMPERATURES MUCH COOLER THAN NORMAL TODAY AND TONIGHT. IN THE MOUNTAINS, PACIFIC MOISTURE AND STRONG WESTERLY FLOW HAVE MOVED OVER THE REGION, CAUSING LIGHT TO MODERATE SNOWFALL. MOISTURE LEVELS WILL BE INCREASING FURTHER TONIGHT CAUSING SNOWFALL ACCUMULATIONS TO INCREASE, ESPECIALLY TO THE NORTH OF THE I-70 CORRIDOR. SNOW ACCUMULATIONS OF 2 TO 4 INCHES ARE EXPECTED TODAY WITH ANOTHER 3 TO 6 INCHES TONIGHT. MOUNTAIN TRAVEL MAY BE DIFFICULT TODAY AND TONIGHT DUE TO SNOW-COVERED ROADS AND POOR VISIBILITY IN FALLING SNOW. VARIOUS WINTER WEATHER ADVISORIES, WARNINGS AND WATCHES ARE IN EFFECT FOR THE NEXT FEW DAYS. ON THE PLAINS, A BAND OF SNOW ACROSS WELD AND MORGAN COUNTIES THIS MORNING SHOULD DISSIPATE BY LATE THIS MORNING. AREAS UNDER THE SNOW BAND MAY SEE A COUPLE INCHES OF ACCUMULATION BEFORE THE SNOW BAND BREAKS APART. HIGH TEMPERATURES NEAR THE NORTHERN BORDER MAY ONLY BE IN THE UPPER TEENS WHILE THE REST OF NORTHEAST COLORADO TOP OUT IN THE LOWER AND MID 20S. OVERNIGHT LOWS ARE EXPECTED TO BE IN THE LOWER SINGLE DIGITS ACROSS MOST OF THE PLAINS TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SNOW WILL CONTINUE IN THE MOUNTAINS AND HIGHER VALLEYS WEDNESDAY THROUGH THURSDAY WITH PERIODS OF HEAVY SNOW AT TIMES. ADDITIONAL ACCUMULATIONS WILL RANGE FROM 8 TO 16 INCHES WITH LOCALLY HIGHER AMOUNTS POSSIBLE. THE HIGHER VALLEYS COULD SEE FROM 6 TO 12 INCHES OF SNOW. GUSTY WEST WINDS WILL PRODUCE AREAS OF BLOWING SNOW AND POOR VISIBLITIES OVER THE HIGHER PASSES. AT LOWER ELEVATIONS SNOW WILL INCREASE NEAR THE WYOMING BORDER WEDNESDAY MORNING AND THEN SPREAD SOUTHWARD BY AFTERNOON AS ANOTHER SHOT OF COLDER AIR MOVES ACROSS NORTHEAST COLORADO. HEAVY SNOW MAY OCCUR IN THE NORTHERN FOOTHILLS WEDNESDAY AND WEDNESDAY NIGHT WITH ACCUMULATIONS FROM 8 TO 16 INCHES POSSIBLE. THERE IS ALSO SOME POTENTIAL FOR HEAVY SNOW ALONG THE FRONT RANGE FROM DENVER NORTH TO THE WYOMING BORDER WEDNESDAY NIGHT. SNOW WILL CONTINUE INTO THURSDAY MORNING BUT SHOULD BEGIN TO DECREASE FROM NORTH TO SOUTH BY THURSDAY AFTERNOON. HOWEVER, TEMPERATURES WILL BE WELL BELOW NORMAL. ON FRIDAY THERE WILL BE A CHANCE OF LIGHT SNOW IN THE MOUNTAINS WITH ONLY A SLIGHT CHANCE AT LOWER ELEVATIONS. DRY CONDITIONS ALONG WITH A WARMING TREND ARE EXPECTED FOR THE WEEKEND. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.
In the hours before
Local storm report, Jan 3, 9:22 AM MST, 5 hours 46 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
922 AM MST TUE JAN 03 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0900 AM SNOW 1 NNE WESTMINSTER 39.89N 105.04W
01/03/2017 M1.0 INCH ADAMS CO TRAINED SPOTTER
0900 AM SNOW 1 ENE WINTER PARK 39.89N 105.76W
01/03/2017 M5.0 INCH GRAND CO TRAINED SPOTTER
0900 AM SNOW N WILLIAMS FORK RESERVO 40.04N 106.20W
01/03/2017 M2.0 INCH GRAND CO TRAINED SPOTTER
0824 AM SNOW 2 SSE TABERNASH 39.95N 105.84W
01/03/2017 M3.0 INCH GRAND CO TRAINED SPOTTER
0800 AM SNOW 4 S MASONVILLE 40.43N 105.21W
01/03/2017 M3.0 INCH LARIMER CO TRAINED SPOTTER
0739 AM SNOW FORT COLLINS 40.56N 105.07W
01/03/2017 M1.4 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW ESE ESTES PARK 40.37N 105.51W
01/03/2017 M4.8 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW 7 E VIRGINIA DALE 40.97N 105.22W
01/03/2017 M3.1 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW 6 NW GREELEY 40.48N 104.82W
01/03/2017 M1.0 INCH WELD CO AMATEUR RADIO
0730 AM SNOW HYGIENE 40.18N 105.17W
01/03/2017 M1.0 INCH BOULDER CO AMATEUR RADIO
0730 AM SNOW 7 S LYONS 40.12N 105.27W
01/03/2017 M1.0 INCH BOULDER CO AMATEUR RADIO
0700 AM HEAVY SNOW 3 WNW PINGREE PARK 40.58N 105.63W
01/03/2017 M9.3 INCH LARIMER CO TRAINED SPOTTER
0600 AM SNOW 1 N EVANS 40.39N 104.70W
01/03/2017 M1.8 INCH WELD CO AMATEUR RADIO
0600 AM SNOW 10 NE PAWNEE BUTTES 40.93N 103.87W
01/03/2017 M0.8 INCH WELD CO TRAINED SPOTTER
&&
JKLocal storm report, Jan 3, 9:57 AM MST, 5 hours 11 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
957 AM MST TUE JAN 03 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0900 AM SNOW 1 NNE WESTMINSTER 39.89N 105.04W
01/03/2017 M1.0 INCH ADAMS CO TRAINED SPOTTER
0900 AM SNOW N WILLIAMS FORK RESERVO 40.04N 106.20W
01/03/2017 M2.0 INCH GRAND CO TRAINED SPOTTER
0900 AM SNOW 1 ENE WINTER PARK 39.89N 105.76W
01/03/2017 M5.0 INCH GRAND CO TRAINED SPOTTER
0824 AM SNOW 2 SSE TABERNASH 39.95N 105.84W
01/03/2017 M3.0 INCH GRAND CO TRAINED SPOTTER
0800 AM SNOW 4 S MASONVILLE 40.43N 105.21W
01/03/2017 M3.0 INCH LARIMER CO TRAINED SPOTTER
0739 AM SNOW FORT COLLINS 40.56N 105.07W
01/03/2017 M1.4 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW 7 S LYONS 40.12N 105.27W
01/03/2017 M1.0 INCH BOULDER CO AMATEUR RADIO
0730 AM SNOW ESE ESTES PARK 40.37N 105.51W
01/03/2017 M4.8 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW 7 E VIRGINIA DALE 40.97N 105.22W
01/03/2017 M3.1 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW 6 NW GREELEY 40.48N 104.82W
01/03/2017 M1.0 INCH WELD CO AMATEUR RADIO
0730 AM SNOW HYGIENE 40.18N 105.17W
01/03/2017 M1.0 INCH BOULDER CO AMATEUR RADIO
0700 AM HEAVY SNOW 3 WNW PINGREE PARK 40.58N 105.63W
01/03/2017 M9.3 INCH LARIMER CO TRAINED SPOTTER
0630 AM SNOW 7 SE DRAKE 40.37N 105.24W
01/03/2017 M2.6 INCH LARIMER CO TRAINED SPOTTER
0600 AM SNOW 1 N EVANS 40.39N 104.70W
01/03/2017 M1.8 INCH WELD CO AMATEUR RADIO
0600 AM SNOW 10 NE PAWNEE BUTTES 40.93N 103.87W
01/03/2017 M0.8 INCH WELD CO TRAINED SPOTTER
&&
JKLocal storm report, Jan 3, 10:04 AM MST, 5 hours 4 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
1004 AM MST TUE JAN 03 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1000 AM HEAVY SNOW 1 N ESTES PARK 40.39N 105.52W
01/03/2017 M6.5 INCH LARIMER CO TRAINED SPOTTER
0900 AM SNOW 1 ENE WINTER PARK 39.89N 105.76W
01/03/2017 M5.0 INCH GRAND CO TRAINED SPOTTER
0900 AM SNOW 1 NNE WESTMINSTER 39.89N 105.04W
01/03/2017 M1.0 INCH ADAMS CO TRAINED SPOTTER
0900 AM SNOW N WILLIAMS FORK RESERVO 40.04N 106.20W
01/03/2017 M2.0 INCH GRAND CO TRAINED SPOTTER
0824 AM SNOW 2 SSE TABERNASH 39.95N 105.84W
01/03/2017 M3.0 INCH GRAND CO TRAINED SPOTTER
0800 AM SNOW 4 S MASONVILLE 40.43N 105.21W
01/03/2017 M3.0 INCH LARIMER CO TRAINED SPOTTER
0739 AM SNOW FORT COLLINS 40.56N 105.07W
01/03/2017 M1.4 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW ESE ESTES PARK 40.37N 105.51W
01/03/2017 M4.8 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW HYGIENE 40.18N 105.17W
01/03/2017 M1.0 INCH BOULDER CO AMATEUR RADIO
0730 AM SNOW 7 E VIRGINIA DALE 40.97N 105.22W
01/03/2017 M3.1 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW 7 S LYONS 40.12N 105.27W
01/03/2017 M1.0 INCH BOULDER CO AMATEUR RADIO
0730 AM SNOW 6 NW GREELEY 40.48N 104.82W
01/03/2017 M1.0 INCH WELD CO AMATEUR RADIO
0700 AM HEAVY SNOW 3 WNW PINGREE PARK 40.58N 105.63W
01/03/2017 M9.3 INCH LARIMER CO TRAINED SPOTTER
0630 AM SNOW 7 SE DRAKE 40.37N 105.24W
01/03/2017 M2.6 INCH LARIMER CO TRAINED SPOTTER
0600 AM SNOW 10 NE PAWNEE BUTTES 40.93N 103.87W
01/03/2017 M0.8 INCH WELD CO TRAINED SPOTTER
0600 AM SNOW 1 N EVANS 40.39N 104.70W
01/03/2017 M1.8 INCH WELD CO AMATEUR RADIO
&&
JKLocal storm report, Jan 3, 10:23 AM MST, 4 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
1023 AM MST TUE JAN 03 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1000 AM HEAVY SNOW 1 N ESTES PARK 40.39N 105.52W
01/03/2017 M6.5 INCH LARIMER CO TRAINED SPOTTER
0900 AM SNOW 1 NNE WESTMINSTER 39.89N 105.04W
01/03/2017 M1.0 INCH ADAMS CO TRAINED SPOTTER
0900 AM SNOW N WILLIAMS FORK RESERVO 40.04N 106.20W
01/03/2017 M2.0 INCH GRAND CO TRAINED SPOTTER
0900 AM SNOW 1 ENE WINTER PARK 39.89N 105.76W
01/03/2017 M5.0 INCH GRAND CO TRAINED SPOTTER
0824 AM SNOW 2 SSE TABERNASH 39.95N 105.84W
01/03/2017 M3.0 INCH GRAND CO TRAINED SPOTTER
0800 AM SNOW 4 S MASONVILLE 40.43N 105.21W
01/03/2017 M3.0 INCH LARIMER CO TRAINED SPOTTER
0739 AM SNOW FORT COLLINS 40.56N 105.07W
01/03/2017 M1.4 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW 6 NW GREELEY 40.48N 104.82W
01/03/2017 M1.0 INCH WELD CO AMATEUR RADIO
0730 AM SNOW 7 S LYONS 40.12N 105.27W
01/03/2017 M1.0 INCH BOULDER CO AMATEUR RADIO
0730 AM SNOW 7 E VIRGINIA DALE 40.97N 105.22W
01/03/2017 M3.1 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW ESE ESTES PARK 40.37N 105.51W
01/03/2017 M4.8 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW HYGIENE 40.18N 105.17W
01/03/2017 M1.0 INCH BOULDER CO AMATEUR RADIO
0700 AM HEAVY SNOW 3 WNW PINGREE PARK 40.58N 105.63W
01/03/2017 M9.3 INCH LARIMER CO TRAINED SPOTTER
0700 AM SNOW 3 W STONEHAM 40.61N 103.74W
01/03/2017 M1.0 INCH WELD CO PUBLIC
0630 AM SNOW 7 SE DRAKE 40.37N 105.24W
01/03/2017 M2.6 INCH LARIMER CO TRAINED SPOTTER
0600 AM SNOW 10 NE PAWNEE BUTTES 40.93N 103.87W
01/03/2017 M0.8 INCH WELD CO TRAINED SPOTTER
0600 AM SNOW 1 N EVANS 40.39N 104.70W
01/03/2017 M1.8 INCH WELD CO AMATEUR RADIO
1000 AM SNOW LOVELAND 40.42N 105.07W
01/03/2017 M2.5 INCH LARIMER CO PUBLIC
0920 AM SNOW SW FORT COLLINS 40.56N 105.07W
01/03/2017 M2.0 INCH LARIMER CO PUBLIC
&&
JKLocal storm report, Jan 3, 1:27 PM MST, 1 hour 41 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE DENVER CO
127 PM MST TUE JAN 03 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 AM SNOW 10 NE PAWNEE BUTTES 40.93N 103.87W
01/03/2017 M0.8 INCH WELD CO TRAINED SPOTTER
0600 AM SNOW 1 N EVANS 40.39N 104.70W
01/03/2017 M1.8 INCH WELD CO AMATEUR RADIO
0630 AM SNOW 7 SE DRAKE 40.37N 105.24W
01/03/2017 M2.6 INCH LARIMER CO TRAINED SPOTTER
0700 AM SNOW 2 ESE ALLENSPARK 40.19N 105.48W
01/03/2017 M4.0 INCH BOULDER CO TRAINED SPOTTER
0700 AM HEAVY SNOW 3 WNW PINGREE PARK 40.58N 105.63W
01/03/2017 M9.3 INCH LARIMER CO TRAINED SPOTTER
0700 AM SNOW 3 W STONEHAM 40.61N 103.74W
01/03/2017 M1.0 INCH WELD CO PUBLIC
0730 AM SNOW ESE ESTES PARK 40.37N 105.51W
01/03/2017 M4.8 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW 6 NW GREELEY 40.48N 104.82W
01/03/2017 M1.0 INCH WELD CO AMATEUR RADIO
0730 AM SNOW 7 E VIRGINIA DALE 40.97N 105.22W
01/03/2017 M3.1 INCH LARIMER CO TRAINED SPOTTER
0730 AM SNOW 7 S LYONS 40.12N 105.27W
01/03/2017 M1.0 INCH BOULDER CO AMATEUR RADIO
0730 AM SNOW HYGIENE 40.18N 105.17W
01/03/2017 M1.0 INCH BOULDER CO AMATEUR RADIO
0739 AM SNOW FORT COLLINS 40.56N 105.07W
01/03/2017 M1.4 INCH LARIMER CO TRAINED SPOTTER
0800 AM SNOW 4 S MASONVILLE 40.43N 105.21W
01/03/2017 M3.0 INCH LARIMER CO TRAINED SPOTTER
0824 AM SNOW 2 SSE TABERNASH 39.95N 105.84W
01/03/2017 M3.0 INCH GRAND CO TRAINED SPOTTER
0900 AM SNOW 1 ENE WINTER PARK 39.89N 105.76W
01/03/2017 M5.0 INCH GRAND CO TRAINED SPOTTER
0900 AM SNOW 1 NNE WESTMINSTER 39.89N 105.04W
01/03/2017 M1.0 INCH ADAMS CO TRAINED SPOTTER
0900 AM SNOW N WILLIAMS FORK RESERVO 40.04N 106.20W
01/03/2017 M2.0 INCH GRAND CO TRAINED SPOTTER
0920 AM SNOW SW FORT COLLINS 40.56N 105.07W
01/03/2017 M2.0 INCH LARIMER CO PUBLIC
1000 AM SNOW LOVELAND 40.42N 105.07W
01/03/2017 M2.5 INCH LARIMER CO PUBLIC
1000 AM HEAVY SNOW 1 N ESTES PARK 40.39N 105.52W
01/03/2017 M6.5 INCH LARIMER CO TRAINED SPOTTER
1100 AM SNOW 1 S LOVELAND 40.40N 105.07W
01/03/2017 M2.5 INCH LARIMER CO TRAINED SPOTTER
0118 PM SNOW 1 NW NIWOT 40.10N 105.17W
01/03/2017 M0.7 INCH BOULDER CO TRAINED SPOTTER
&&
SCHLATTERThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 3, 5:08 AM MST | Winter Storm Watch | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 10 hr |
| Jan 3, 5:08 AM MST | Winter Storm Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 10 more | 54 hr |
Nearby
Winter Storm Watches in Colorado, 2017Every winter storm watch in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.