Alert archive / Colorado / Wind Chill Warnings in 2017
Wind Chill Warning 1, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this wind chill warning at Jan 6, 2017, 1:26 AM MST for Larimer County, Logan County, Weld County, Colorado. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 6, 2017, 1:26 AM MST (08:26 UTC)
- Expired
- Jan 6, 2017, 9:00 AM MST
- In force
- 8 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Larimer County, CO, Logan County, CO, Weld County, CO
The radar
The Cheyenne radar (KCYS), 69 km from the middle of the area, began a volume at 08:28 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 00:00Z, 8.4 hours before the alert went out and 127 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
- 233 J/kg
- Mixed-layer CIN
- -123 J/kg
- Mixed-layer LCL
- 392 m above ground
- 0-6 km bulk shear
- 99 kt
- 0-1 km storm-relative helicity
- -114 m²/s²
- 0-3 km storm-relative helicity
- -40 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 5.9
The text
As transmitted.
163 WWUS45 KBOU 060826 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 126 AM MST FRI JAN 6 2017 COZ042-048-061600- /O.UPG.KBOU.WC.Y.0001.000000T0000Z-170106T1600Z/ /O.NEW.KBOU.WC.W.0001.170106T0826Z-170106T1600Z/ NORTHEAST WELD COUNTY-LOGAN COUNTY- 126 AM MST FRI JAN 6 2017 ...WIND CHILL WARNING IN EFFECT UNTIL 9 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WIND CHILL WARNING, WHICH IS IN EFFECT UNTIL 9 AM MST THIS MORNING. THE WIND CHILL ADVISORY IS NO LONGER IN EFFECT. * TIMING...NORTH WINDS AROUND 5 TO 10 MPH WILL CAUSE DANGEROUS WIND CHILLS TO DEVELOP OVERNIGHT...AND CONTINUING THROUGH FRIDAY MORNING. * WIND CHILL VALUES...DROPPING TO BETWEEN 25 BELOW AND 35 BELOW ZERO. * IMPACTS...EXPOSED SKIN WILL SUFFER FROM FROSTBITE IN 20 MINUTES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ038-043-061600- /O.NEW.KBOU.WC.W.0001.170106T0826Z-170106T1600Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- CENTRAL AND SOUTH WELD COUNTY- 126 AM MST FRI JAN 6 2017 ...WIND CHILL WARNING IN EFFECT UNTIL 9 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WIND CHILL WARNING, WHICH IS IN EFFECT UNTIL 9 AM MST THIS MORNING. * WIND CHILL VALUES...DROPPING TO BETWEEN 25 BELOW AND 35 BELOW ZERO. * IMPACTS...EXPOSED SKIN WILL SUFFER FROM FROSTBITE IN 20 MINUTES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ044-049>051-061600- /O.CON.KBOU.WC.Y.0001.000000T0000Z-170106T1600Z/ MORGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 126 AM MST FRI JAN 6 2017 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING... * TIMING...NORTH WINDS AROUND 5 TO 10 MPH WILL CAUSE DANGEROUS WIND CHILLS TO DEVELOP OVERNIGHT...AND CONTINUING THROUGH FRIDAY MORNING. * WIND CHILL VALUES...DROPPING TO BETWEEN 18 BELOW AND 24 BELOW ZERO. * IMPACTS...EXPOSED SKIN WILL SUFFER FROM FROSTBITE IN 20 MINUTES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$
2 follow-up statements
765 WWUS45 KBOU 061216 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 516 AM MST FRI JAN 6 2017 COZ038-042-043-048-061600- /O.CON.KBOU.WC.W.0001.000000T0000Z-170106T1600Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-LOGAN COUNTY- 516 AM MST FRI JAN 6 2017 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING... * TIMING...VARIABLE WINDS AROUND 5 TO 10 MPH WILL CAUSE DANGEROUS WIND CHILLS THIS MORNING. * WIND CHILL VALUES...25 BELOW TO 40 BELOW ZERO. * IMPACTS...EXPOSED SKIN WILL SUFFER FROM FROSTBITE IN 20 MINUTES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN. && $$ COZ044-049>051-061600- /O.CON.KBOU.WC.Y.0001.000000T0000Z-170106T1600Z/ MORGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 516 AM MST FRI JAN 6 2017 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING... * TIMING...VARIABLE WINDS AROUND 5 TO 10 MPH WILL CAUSE DANGEROUS WIND CHILLS THIS MORNING. * WIND CHILL VALUES...20 BELOW AND 25 BELOW ZERO. * IMPACTS...EXPOSED SKIN WILL SUFFER FROM FROSTBITE IN 20 MINUTES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$
987 WWUS45 KBOU 061555 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 855 AM MST FRI JAN 6 2017 COZ038-042-043-048-061700- /O.EXP.KBOU.WC.W.0001.000000T0000Z-170106T1600Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-LOGAN COUNTY- INCLUDING THE CITIES OF FORT COLLINS, HEREFORD, LOVELAND, NUNN, BRIGGSDALE, GROVER, PAWNEE BUTTES, RAYMER, STONEHAM, EATON, FORT LUPTON, GREELEY, ROGGEN, CROOK, MERINO, STERLING, AND PEETZ 855 AM MST FRI JAN 6 2017 ...WIND CHILL WARNING WILL EXPIRE AT 9 AM MST THIS MORNING... IT WILL BE COLD TODAY...ESPECIALLY THIS MORNING. IF VENTURING OUTDOORS...DRESS WARM AND MAKE SURE YOU WEAR A HAT AND GLOVES. $$ COZ044-049>051-061700- /O.EXP.KBOU.WC.Y.0001.000000T0000Z-170106T1600Z/ MORGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF BRUSH, FORT MORGAN, GOODRICH, WIGGINS, AKRON, COPE, LAST CHANCE, OTIS, JULESBURG, OVID, SEDGWICK, AMHERST, HAXTUN, AND HOLYOKE 854 AM MST FRI JAN 6 2017 ...WIND CHILL ADVISORY WILL EXPIRE AT 9 AM MST THIS MORNING... IT WILL BE COLD TODAY...ESPECIALLY THIS MORNING. IF VENTURING OUTDOORS...DRESS WARM AND MAKE SURE YOU WEAR A HAT AND GLOVES. $$
Nearby
Wind Chill Warnings in Colorado, 2017Every wind chill warning 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.