Alert archive / Colorado / High Wind Warnings in 2021
High Wind Warning 5, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this high wind warning at Oct 12, 2021, 3:56 AM MDT for 4 counties in Colorado. It took effect at Oct 12, 2021, 12:00 PM MDT. It was in force for 6 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
- Oct 12, 2021, 3:56 AM MDT (09:56 UTC)
- In effect from
- Oct 12, 2021, 12:00 PM MDT
- Expired
- Oct 12, 2021, 6:00 PM MDT
- In force
- 6 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Arapahoe County, CO, Douglas County, CO, Elbert County, CO, Lincoln County, CO
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 9.9 hours before the alert went out and 106 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
- 2859 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
303 WWUS75 KBOU 120956 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 356 AM MDT Tue Oct 12 2021 COZ041-046-047-122200- /O.NEW.KBOU.HW.W.0005.211012T1800Z-211013T0000Z/ Elbert/Central and East Douglas Counties Above 6000 Feet-North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Including the cities of Castle Rock, Punkin Center, Elbert, Karval, Hugo, Matheson, Forder, Kiowa, Larkspur, Agate, Limon, Fondis, and Kutch 356 AM MDT Tue Oct 12 2021 ...HIGH WIND WARNING IN EFFECT FROM NOON TODAY TO 6 PM MDT THIS EVENING... * WHAT...South winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...North and Northeast Elbert County Below 6000 Feet/North Lincoln County, Southeast Elbert County Below 6000 Feet/South Lincoln County and Elbert/Central and East Douglas Counties Above 6000 Feet Counties. * WHEN...From Noon today to 6 PM MDT this evening. * IMPACTS...Damaging winds will blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and blowing dust. Use caution if you must drive. && $$ COZ035-122200- /O.NEW.KBOU.HW.A.0004.211013T0600Z-211013T1800Z/ Larimer and Boulder Counties Between 6000 and 9000 Feet- Including the cities of Red Feather Lakes, Glendevey, Nederland, and Estes Park 356 AM MDT Tue Oct 12 2021 ...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY MORNING... * WHAT...West winds 25 to 40 mph with gusts up to 75 mph possible. * WHERE...Larimer and Boulder Counties Between 6000 and 9000 Feet County. * WHEN...From late tonight through Wednesday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Entrekin
2 follow-up statements
191 WWUS75 KBOU 122047 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver/Boulder CO 247 PM MDT Tue Oct 12 2021 COZ035-130900- /O.UPG.KBOU.HW.A.0004.211013T0600Z-211013T1800Z/ /O.NEW.KBOU.HW.W.0006.211013T0600Z-211013T1800Z/ Larimer and Boulder Counties Between 6000 and 9000 Feet- Including Estes Park, Glendevey, Nederland, and Red Feather Lakes 247 PM MDT Tue Oct 12 2021 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT WEDNESDAY... * WHAT...West winds 25 to 40 mph with gusts up to 75 mph expected. * WHERE...The Northern Front Range Foothills. * WHEN...From midnight tonight to noon MDT Wednesday. * IMPACTS...Strong winds will blow unsecured objects around. Tree limbs could be blown down and a few power outages may result. Travel will be difficult for high profile vehicles. * ADDITIONAL DETAILS...Damaging winds will blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Strong winds may lead to property damage. Hazardous driving conditions due to powerful cross winds will pose a serious risk for drivers, especially for light weight and high profile vehicles. Loose outdoor items should be brought inside or secured properly. && $$ COZ041-046-047-130000- /O.CON.KBOU.HW.W.0005.000000T0000Z-211013T0000Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Including Castle Rock, Elbert, Fondis, Kiowa, Larkspur, Agate, Hugo, Limon, Matheson, Forder, Karval, Kutch, and Punkin Center 247 PM MDT Tue Oct 12 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...South winds 30 to 40 mph with gusts up to 60 mph. * WHERE...Palmer Divide including Castle Rock, Elbert, and Larkspur, Eastern Elbert and Northern Lincoln Counties and Southern Lincoln County. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Strong winds will blow unsecured objects around. Tree limbs could be blown down and a few power outages may result. Travel will be difficult for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Strong winds may lead to property damage. Hazardous driving conditions due to powerful cross winds will pose a serious risk for drivers, especially for light weight and high profile vehicles. Loose outdoor items should be brought inside or secured properly. && $$
648 WWUS75 KBOU 122350 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver/Boulder CO 550 PM MDT Tue Oct 12 2021 COZ041-046-047-130100- /O.EXP.KBOU.HW.W.0005.000000T0000Z-211013T0000Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Including Castle Rock, Elbert, Fondis, Kiowa, Larkspur, Agate, Hugo, Limon, Matheson, Forder, Karval, Kutch, and Punkin Center 550 PM MDT Tue Oct 12 2021 ...HIGH WIND WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING... The wind has dropped below warning criteria, therefore the High Wind Warning will be allowed to expire at 6 PM MDT. $$ COZ042-048-050-051-131200- /O.EXB.KBOU.HW.W.0006.211013T1200Z-211014T0000Z/ Northeast Weld County-Logan County-Sedgwick County- Phillips County- Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Crook, Merino, Sterling, Peetz, Julesburg, Ovid, Sedgwick, Amherst, Haxtun, and Holyoke 550 PM MDT Tue Oct 12 2021 ...HIGH WIND WARNING IN EFFECT FROM 6 AM TO 6 PM MDT WEDNESDAY... * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Northeast Weld County, Logan County, Sedgwick County and Phillips County. * WHEN...From 6 AM to 6 PM MDT Wednesday. * IMPACTS...Strong winds will blow unsecured objects around. Tree limbs could be blown down and a few power outages may result. Travel will be difficult for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Strong winds may lead to property damage. Hazardous driving conditions due to powerful cross winds will pose a serious risk for drivers, especially for light weight and high profile vehicles. Loose outdoor items should be brought inside or secured properly. && $$ COZ035-131200- /O.CON.KBOU.HW.W.0006.211013T0600Z-211013T1800Z/ Larimer and Boulder Counties Between 6000 and 9000 Feet- Including Estes Park, Glendevey, Nederland, and Red Feather Lakes 550 PM MDT Tue Oct 12 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT WEDNESDAY... * WHAT...West winds 25 to 40 mph with gusts up to 75 mph expected. * WHERE...The Northern Front Range Foothills. * WHEN...From midnight tonight to noon MDT Wednesday. * IMPACTS...Strong winds will blow unsecured objects around. Tree limbs could be blown down and a few power outages may result. Travel will be difficult for high profile vehicles. * ADDITIONAL DETAILS...Damaging winds will blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Strong winds may lead to property damage. Hazardous driving conditions due to powerful cross winds will pose a serious risk for drivers, especially for light weight and high profile vehicles. Loose outdoor items should be brought inside or secured properly. && $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 3:56 AM MDT | High Wind Watch | BOU | Boulder, Larimer | 11 hr |
| Oct 12, 2:47 PM MDT | High Wind Warning | BOU | Boulder, Larimer, Logan, Phillips, Sedgwick, Weld | 24 hr |
| Oct 12, 5:05 PM MDT | Special Weather Statement | BOU | Logan | 25 min |
| Oct 12, 5:18 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Sedgwick | 42 min |
| Oct 12, 5:54 PM MDT | Tornado Warning | BOU | Phillips | 36 min |
Nearby
High Wind Warnings in Colorado, 2021Every high wind warning 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.