Alert archive / Colorado / Wind Chill Advisories in 2021
Wind Chill Advisory 3, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this wind chill advisory at Feb 15, 2021, 10:41 AM MST for Phillips County, Sedgwick County, Colorado. It took effect at Feb 15, 2021, 6:00 PM MST. It was in force for 16 hr.
The area
The counties it named.
The facts
- Issued
- Feb 15, 2021, 10:41 AM MST (17:41 UTC)
- In effect from
- Feb 15, 2021, 6:00 PM MST
- Expired
- Feb 16, 2021, 10:00 AM MST
- In force
- 16 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Phillips County, CO, Sedgwick County, CO
The radar
The Goodland radar (KGLD), 162 km from the middle of the area, began a volume at 17:44 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
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 5.7 hours before the alert went out and 154 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
- 949 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
703 WWUS45 KBOU 151741 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1041 AM MST Mon Feb 15 2021 COZ050-051-160145- /O.EXP.KBOU.WC.W.0001.000000T0000Z-210215T1800Z/ /O.NEW.KBOU.WC.Y.0003.210216T0100Z-210216T1700Z/ Sedgwick County-Phillips County- Including the cities of Ovid, Holyoke, Julesburg, Amherst, Sedgwick, and Haxtun 1041 AM MST Mon Feb 15 2021 ...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 10 AM MST TUESDAY... ...WIND CHILL WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... * WHAT...Very cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...Julesburg, and Holyoke. * WHEN...From 6 PM this evening to 10 AM MST Tuesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... The combination of wind and cold temperatures will create dangerously low wind chill values. If you go outside, cover all parts of your body, especially your head, face, and hands. && $$ COZ038-041>049-151845- /O.EXP.KBOU.WC.W.0001.000000T0000Z-210215T1800Z/ Larimer County Below 6000 Feet/Northwest Weld County- Elbert/Central and East Douglas Counties Above 6000 Feet- Northeast Weld County-Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties-North and Northeast Elbert County Below 6000 Feet/North Lincoln County-Southeast Elbert County Below 6000 Feet/South Lincoln County-Logan County- Washington County- Including the cities of Wiggins, Fort Morgan, Elbert, Hugo, Roggen, Forder, Larkspur, Agate, Briggsdale, Leader, Sterling, Pawnee Buttes, Crook, Akron, Raymer, Fort Lupton, Cope, Matheson, Loveland, Peetz, Kiowa, Grover, Eaton, Deer Trail, Byers, Fondis, Kutch, Last Chance, Castle Rock, Goodrich, Stoneham, Fort Collins, Greeley, Bennett, Otis, Punkin Center, Nunn, Brush, Karval, Limon, Hereford, and Merino 1041 AM MST Mon Feb 15 2021 ...WIND CHILL WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... $$ COZ039-040-151845- /O.EXP.KBOU.WC.Y.0002.000000T0000Z-210215T1800Z/ 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- Including the cities of Boulder, Golden, Highlands Ranch, City of Denver, Lakewood, Aurora, Arvada, Littleton, Parker, Longmont, Denver International Airport, and Brighton 1041 AM MST Mon Feb 15 2021 ...WIND CHILL ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING... $$ COZ031-160145- /O.CON.KBOU.WW.Y.0012.210215T2100Z-210217T0100Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 1041 AM MST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 6 PM MST TUESDAY... * WHAT...Snow expected. Total snow accumulations between 5 to 10 inches with locally higher amounts. Winds gusting as high as 40 mph over the ridges. * WHERE...Rabbit Ears Pass. * WHEN...From 2 PM this afternoon to 6 PM MST Tuesday. * IMPACTS...Travel could be very difficult. Roads will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ For more information from the National Weather Service, visit https://weather.gov/bou Barjenbruch
3 follow-up statements
782 WWUS45 KBOU 152203 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 303 PM MST Mon Feb 15 2021 COZ031-160615- /O.CON.KBOU.WW.Y.0012.000000T0000Z-210217T0100Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 303 PM MST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST TUESDAY... * WHAT...Snow and blowing snow expected. Total snow accumulations between 5 to 10 inches with locally higher amounts. Winds gusting as high as 40 mph over the ridges. * WHERE...Rabbit Ears Pass. * WHEN...Until 6 PM MST Tuesday. * IMPACTS...Travel could be very difficult to impossible. Roads will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ COZ050-051-160615- /O.CON.KBOU.WC.Y.0003.210216T0100Z-210216T1700Z/ Sedgwick County-Phillips County- Including the cities of Ovid, Holyoke, Julesburg, Amherst, Sedgwick, and Haxtun 303 PM MST Mon Feb 15 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...Julesburg, and Holyoke. * WHEN...Until 10 AM MST Tuesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... The combination of wind and cold temperatures will create dangerously low wind chill values. If you go outside, cover all parts of your body, especially your head, face, and hands. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Barjenbruch
599 WWUS45 KBOU 160748 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1248 AM MST Tue Feb 16 2021 COZ031-161700- /O.CON.KBOU.WW.Y.0012.000000T0000Z-210217T0100Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 1248 AM MST Tue Feb 16 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow and blowing snow expected. Total snow accumulations between 5 to 10 inches with locally higher amounts. Winds gusting as high as 40 mph over the ridges. * WHERE...Rabbit Ears Pass. * WHEN...Until 6 PM MST this evening. * IMPACTS...Travel could be very difficult. Roads will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ COZ050-051-161700- /O.CON.KBOU.WC.Y.0003.000000T0000Z-210216T1700Z/ Sedgwick County-Phillips County- Including the cities of Ovid, Holyoke, Julesburg, Amherst, Sedgwick, and Haxtun 1248 AM MST Tue Feb 16 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST THIS MORNING... * WHAT...Very cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...Julesburg, and Holyoke. * WHEN...Until 10 AM MST this morning. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... The combination of wind and cold temperatures will create dangerously low wind chill values. If you go outside, cover all parts of your body, especially your head, face, and hands. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Meier
930 WWUS45 KBOU 161646 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver/Boulder CO 946 AM MST Tue Feb 16 2021 COZ050-051-161800- /O.EXP.KBOU.WC.Y.0003.000000T0000Z-210216T1700Z/ Sedgwick County-Phillips County- Including Julesburg, Ovid, Sedgwick, Amherst, Haxtun, and Holyoke 946 AM MST Tue Feb 16 2021 ...WIND CHILL ADVISORY WILL EXPIRE AT 10 AM MST THIS MORNING... The wind chill advisory has expired. Temperatures will continue to be cold with values below zero across portions of the Northeast plains. It is advised to wear warm clothing with exposed areas covered to decrease injury from cold temperatures. $$ COZ031-170100- /O.CON.KBOU.WW.Y.0012.000000T0000Z-210217T0100Z/ West Jackson and West Grand Counties Above 9000 Feet- Including Mt Zirkel 946 AM MST Tue Feb 16 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow. Additional snow accumulations of 1 to 3 inches. * WHERE...East Slopes Park and Northern Gore Ranges, Gore Pass, Rabbit Ears Pass. * WHEN...Until 6 PM MST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 2:56 AM MST | Winter Weather Advisory | BOU | Grand, Jackson | 39 hr |
Nearby
Wind Chill Advisories in Colorado, 2021Every wind chill advisory in 2021
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.