Alert archive / Colorado / High Wind Warnings in 2021
High Wind Warning 10, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this high wind warning at Dec 14, 2021, 4:34 AM MST for 19 counties in Colorado. It took effect at Dec 15, 2021, 8:00 AM MST. It was in force for 9 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, 2021, 4:34 AM MST (11:34 UTC)
- In effect from
- Dec 15, 2021, 8:00 AM MST
- Expired
- Dec 15, 2021, 5:00 PM MST
- In force
- 9 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Park County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 22 km from the middle of the area, began a volume at 11:35 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, 8:01 AM MST | NON-TSTM WND GST 55 | 4 Sw Hygiene, CO | MESONET STATION DW1011 LONGMONT. |
| Dec 15, 8:04 AM MST | TSTM WND DMG | 1 Se Brighton, CO | SMALL TREE LIMBS BROKEN. |
| Dec 15, 8:04 AM MST | NON-TSTM WND DMG | 1 Se Brighton, CO | SMALL TREE LIMBS BROKEN. |
| Dec 15, 8:15 AM MST | NON-TSTM WND GST 55 | 3 Se Tolland, CO | AWOS STATION KC99 DAKOTA HILL. |
| Dec 15, 8:16 AM MST | NON-TSTM WND GST 60 | 2 Se Denver Intl Airpor, CO | ASOS STATION KDEN DENVER. |
| Dec 15, 8:19 AM MST | TSTM WND DMG | 3 Wsw Aurora, CO | 1-INCH TREE LIMBS BROKEN. |
| Dec 15, 8:19 AM MST | NON-TSTM WND DMG | 3 Wsw Aurora, CO | 1-INCH TREE LIMBS BROKEN. |
| Dec 15, 8:35 AM MST | NON-TSTM WND GST 59 | 3 Ese Buckeye, CO | MESONET STATION BEYC2 BUCKEYE. |
| Dec 15, 8:47 AM MST | NON-TSTM WND GST 60 | 1 E Limon, CO | ASOS STATION KLIC LIMON. |
| Dec 15, 9:14 AM MST | NON-TSTM WND GST 67 | 3 Sw Rocky Flats, CO | MESONET STATION CO109 ROCKY FLATS HWY 93 AND 72. |
| Dec 15, 9:27 AM MST | NON-TSTM WND GST 64 | 1 Ese Akron, CO | MESONET STATION EW7755 AKRON. |
| Dec 15, 9:29 AM MST | NON-TSTM WND GST 60 | 1 N Glen Haven, CO | MESONET STATION EW4490 GLEN HAVEN. |
| Dec 15, 9:30 AM MST | NON-TSTM WND GST 59 | 2 Nne Rocky Flats, CO | MESONET STATION RFN 1.7 NE ROCKY FLATS (CDPHE). |
| Dec 15, 9:31 AM MST | NON-TSTM WND GST 71 | 3 Nne White Ranch Open, CO | MESONET STATION UP709 2.8 NE WHITE RANCH OPEN SPACE (UPR). |
| Dec 15, 9:34 AM MST | NON-TSTM WND GST 61 | 14 S Hyde, CO | |
| Dec 15, 9:35 AM MST | NON-TSTM WND GST 69 | 3 Ssw Boulder, CO | |
| Dec 15, 9:35 AM MST | NON-TSTM WND GST 71 | 4 Se Pinecliffe, CO | MESONET STATION EW8336 COAL CREEK CANYON. |
| Dec 15, 9:38 AM MST | NON-TSTM WND GST 64 | 3 Ese Pinecliffe, CO | MESONET STATION FW8937 WONDERVU. |
| Dec 15, 9:42 AM MST | NON-TSTM WND GST 55 | 3 W Lyons, CO | MESONET STATION BCFC2 LYONS 3W. |
| Dec 15, 9:48 AM MST | NON-TSTM WND GST 73 | 3 Ese Pinecliffe, CO | MESONET STATION FW8937 WONDERVU. |
| Dec 15, 9:51 AM MST | NON-TSTM WND GST 76 | 4 Ene Nederland, CO | |
| Dec 15, 9:55 AM MST | NON-TSTM WND GST 55 | Wilkerson Pass, CO | MESONET STATION CO027 024W254 WILKERSON PASS. |
| Dec 15, 10:00 AM MST | NON-TSTM WND GST 91 | 3 Ssw Boulder, CO | CORRECTS PREVIOUS NON-TSTM WND GST REPORT FROM 3 SSW BOULDER. |
| Dec 15, 10:00 AM MST | NON-TSTM WND GST 91 | 3 Ssw Boulder, CO | |
| Dec 15, 10:15 AM MST | NON-TSTM WND GST 55 | Aspen Springs, CO | MESONET STATION CW5066 ASPEN SPRINGS. |
| Dec 15, 10:16 AM MST | NON-TSTM WND GST 59 | 3 Wnw Mishawaka, CO | MESONET STATION EW0853 LIVERMORE. |
| Dec 15, 10:16 AM MST | NON-TSTM WND GST 68 | 2 Sse Pleasant View, CO | MESONET STATION FW8940 LAKEWOOD. |
| Dec 15, 10:23 AM MST | NON-TSTM WND GST 73 | 2 S Cheesman Reservoir, CO | MESONET STATION CHRC2 CHEESMAN. |
| Dec 15, 10:24 AM MST | NON-TSTM WND GST 65 | 2 Wnw Aspen Springs, CO | MESONET STATION PKLC2 PICKLE GULCH. |
| Dec 15, 10:25 AM MST | NON-TSTM WND GST 59 | Downieville, CO | MESONET STATION CO141 DOWNIEVILLE. |
| Dec 15, 10:25 AM MST | NON-TSTM WND GST 67 | 1 Wsw Chatfield Reservo, CO | MESONET STATION CO007 470W014 WADSWORTH. |
| Dec 15, 10:25 AM MST | NON-TSTM WND GST 67 | Floyd Hill, CO | MESONET STATION CO071 I-70 FLOYD HILL. |
| Dec 15, 10:25 AM MST | NON-TSTM WND GST 80 | 2 Nnw Genesee, CO | MESONET STATION CO065 GENESEE. |
| Dec 15, 10:25 AM MST | NON-TSTM WND GST 82 | 3 Sw Rocky Flats, CO | MESONET STATION CO109 ROCKY FLATS HWY 93 AND 72. |
| Dec 15, 10:25 AM MST | NON-TSTM WND GST 95 | 3 Nne White Ranch Open, CO | MESONET STATION UP709 2.8 NE WHITE RANCH OPEN SPACE (UPR). |
| Dec 15, 10:25 AM MST | NON-TSTM WND GST 95 | 3 Nne White Ranch Open, CO | |
| Dec 15, 10:28 AM MST | NON-TSTM WND GST 85 | 3 Ssw Boulder, CO | |
| Dec 15, 10:30 AM MST | NON-TSTM WND GST 56 | 3 Nnw Longmont, CO | MESONET STATION EW2670 LONGMONT. |
| Dec 15, 10:30 AM MST | NON-TSTM WND GST 79 | 4 Se Pinecliffe, CO | MESONET STATION EW8336 COAL CREEK CANYON. |
| Dec 15, 10:35 AM MST | TSTM WND DMG | 2 Wsw Lakewood, CO | 1-INCH TREE LIMBS BROKEN. |
| Dec 15, 10:35 AM MST | NON-TSTM WND GST 71 | 3 Ese Buckeye, CO | MESONET STATION BEYC2 BUCKEYE. |
| Dec 15, 10:35 AM MST | NON-TSTM WND GST 71 | 3 Se Tolland, CO | AWOS STATION KC99 DAKOTA HILL. |
| Dec 15, 10:35 AM MST | NON-TSTM WND GST 77 | 2 S Eldorado Springs, CO | |
| Dec 15, 10:35 AM MST | NON-TSTM WND GST 87 | 2 Nw Rocky Flats, CO | NATIONAL WIND TECHNOLOGY CENTER. |
| Dec 15, 10:35 AM MST | NON-TSTM WND DMG | 2 Wsw Lakewood, CO | 1-INCH TREE LIMBS BROKEN. |
| Dec 15, 10:36 AM MST | NON-TSTM WND GST 66 | 1 Ne Aspen Springs, CO | MESONET STATION DW4381 BLACK HAWK. |
| Dec 15, 10:37 AM MST | NON-TSTM WND GST 60 | 1 Ene Estes Park, CO | |
| Dec 15, 10:41 AM MST | TSTM WND DMG | 3 E Lakewood, CO | REPORT FROM MPING: 1-INCH TREE LIMBS BROKEN. |
| Dec 15, 10:41 AM MST | NON-TSTM WND DMG | 3 E Lakewood, CO | REPORT FROM MPING: 1-INCH TREE LIMBS BROKEN. |
| Dec 15, 10:45 AM MST | NON-TSTM WND GST 59 | 1 Ne Ken Caryl, CO | MESONET STATION FW5793 LITTLETON. |
| Dec 15, 10:45 AM MST | NON-TSTM WND GST 69 | 3 Ene Nederland, CO | MESONET STATION FW1761 NEDERLAND. |
| Dec 15, 10:45 AM MST | NON-TSTM WND GST 75 | 2 Nnw Marshall, CO | MESONET STATION BLD01 BOULDER SOUTH WEST. |
| Dec 15, 10:45 AM MST | NON-TSTM WND GST 79 | 4 Ene Nederland, CO | |
| Dec 15, 10:45 AM MST | NON-TSTM WND GST 84 | 2 Sw Broomfield, CO | AWOS STATION KBJC BROOMFIELD ROCKY MTN METRO AIRPORT. |
| Dec 15, 10:45 AM MST | NON-TSTM WND DMG | Superior, CO | LIGHT POLE DAMAGED. |
| Dec 15, 10:46 AM MST | NON-TSTM WND GST 56 | 11 Wnw Westplains, CO | AWOS STATION K1LW STONEHAM 22 N. |
| Dec 15, 10:46 AM MST | NON-TSTM WND GST 59 | 3 Ne Englewood, CO | MESONET STATION CO145 UNIVERSITY BLVD. |
| Dec 15, 10:46 AM MST | NON-TSTM WND GST 60 | 2 Ssw Boulder, CO | MESONET STATION CO040 036E03750RWS1RP1 AT BASELINE RD. |
| Dec 15, 10:46 AM MST | NON-TSTM WND GST 68 | 1 N Georgetown, CO | MESONET STATION CO162 I-70 GEORGETOWN LAKE. |
| Dec 15, 10:46 AM MST | NON-TSTM WND GST 70 | 1 Ne Aspen Springs, CO | MESONET STATION FW0549 BLACK HAWK. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 11.6 hours before the alert went out and 99 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
- 3699 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
759 WWUS75 KBOU 141134 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 434 AM MST Tue Dec 14 2021 COZ035>039-142215- /O.UPG.KBOU.HW.A.0008.211215T1700Z-211216T0000Z/ /O.NEW.KBOU.HW.W.0010.211215T1500Z-211216T0000Z/ 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- Including the cities of Hartsel, Westcreek, Arvada, Central City, Red Feather Lakes, Bailey, Evergreen, Georgetown, Glendevey, Nederland, Fairplay, South Park, Boulder, Loveland, Estes Park, Longmont, Golden, Lakewood, Fort Collins, Nunn, Idaho Springs, Lake George, and Hereford 434 AM MST Tue Dec 14 2021 ...HIGH WIND WARNING IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 30 to 50 mph with gusts reaching 60 to 80 mph. Wind prone areas in and near the foothills may see gusts near 100 mph. * WHERE...South Park, Northern and Southern Foothills, Jefferson County, Northwest Weld County, Larimer and Boulder Counties Below 9000 Feet and Broomfield County. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds may blow down trees and power lines. Widespread power outages will be possible. Travel will be difficult, especially for high profile vehicles. Gusty winds will blow around unsecured objects. Blowing dust will reduce visibility to less than a quarter mile in places. * ADDITIONAL DETAILS...Strong winds and low humidity will create critical fire weather conditions on the plains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. If you encounter blowing dust on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep foot off the brake pedal. Remember, 'Pull Aside, Stay Alive'. && $$ COZ040>051-142215- /O.UPG.KBOU.HW.A.0008.211215T1700Z-211216T0000Z/ /O.NEW.KBOU.HW.W.0010.211215T1500Z-211216T0000Z/ 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- Including the cities of Wiggins, Pawnee Buttes, Elbert, Hugo, Roggen, Forder, Julesburg, Larkspur, Agate, Briggsdale, Leader, Sterling, Fort Morgan, City of Denver, Crook, Aurora, Littleton, Amherst, Akron, Sedgwick, Raymer, Brighton, Highlands Ranch, Fort Lupton, Cope, Ovid, Matheson, Peetz, Kiowa, Grover, Eaton, Deer Trail, Byers, Fondis, Kutch, Denver International Airport, Haxtun, Last Chance, Parker, Castle Rock, Goodrich, Stoneham, Karval, Greeley, Bennett, Otis, Punkin Center, Holyoke, Brush, Limon, and Merino 434 AM MST Tue Dec 14 2021 ...HIGH WIND WARNING IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 30 to 50 mph with gusts reaching 60 to 80 mph. * WHERE...Portions of east central and northeast Colorado. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds may blow down trees and power lines. Widespread power outages will be possible. Travel will be difficult, especially for high profile vehicles. Gusty winds will blow around unsecured objects. Blowing dust will reduce visibility to less than a quarter mile in places. * ADDITIONAL DETAILS...Strong winds and low humidity may create critical fire weather conditions on the plains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. If you encounter blowing dust on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep foot off the brake pedal. Remember, 'Pull Aside, Stay Alive'. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Meier
5 follow-up statements
362 WWUS75 KBOU 142213 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 313 PM MST Tue Dec 14 2021 COZ035>039-151300- /O.CON.KBOU.HW.W.0010.211215T1500Z-211216T0000Z/ 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- Including the cities of Hartsel, Westcreek, Arvada, Central City, Red Feather Lakes, Bailey, Evergreen, Georgetown, Glendevey, Nederland, Fairplay, South Park, Boulder, Loveland, Estes Park, Longmont, Golden, Lakewood, Fort Collins, Nunn, Idaho Springs, Lake George, and Hereford 313 PM MST Tue Dec 14 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 30 to 50 mph with gusts reaching 60 to 80 mph. Wind prone areas in and near the foothills may see gusts near 100 mph. * WHERE...Central and Southeast Park County, 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, Larimer and Boulder Counties Between 6000 and 9000 Feet and Boulder and Jefferson Counties Below 6000 Feet/West Broomfield County Counties. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Gusty winds will blow around unsecured objects and a few power outages may result. Blowing dust will reduce visibility to less than a quarter mile in places. * ADDITIONAL DETAILS...Strong winds and low humidity will create critical fire weather conditions on the plains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Persons with respiratory problems should make preparations to stay indoors until the storm passes. Be ready for a sudden drop in visibility to near zero. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep foot off the brake pedal. Remember, 'Pull Aside, Stay Alive'. && $$ COZ040>051-151300- /O.CON.KBOU.HW.W.0010.211215T1500Z-211216T0000Z/ 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- Including the cities of Wiggins, Pawnee Buttes, Elbert, Hugo, Roggen, Forder, Julesburg, Larkspur, Agate, Briggsdale, Leader, Sterling, Fort Morgan, City of Denver, Crook, Aurora, Littleton, Amherst, Akron, Sedgwick, Raymer, Brighton, Highlands Ranch, Fort Lupton, Cope, Ovid, Matheson, Peetz, Kiowa, Grover, Eaton, Deer Trail, Byers, Fondis, Kutch, Denver International Airport, Haxtun, Last Chance, Parker, Castle Rock, Goodrich, Stoneham, Karval, Greeley, Bennett, Otis, Punkin Center, Holyoke, Brush, Limon, and Merino 313 PM MST Tue Dec 14 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 30 to 50 mph with gusts reaching 60 to 80 mph. * WHERE...Portions of east central and northeast Colorado. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Gusty winds will blow around unsecured objects and a few power outages may result. Blowing dust will reduce visibility to less than a quarter mile in places. * ADDITIONAL DETAILS...Strong winds and low humidity may create critical fire weather conditions on the plains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Persons with respiratory problems should make preparations to stay indoors until the storm passes. Be ready for a sudden drop in visibility to near zero. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep foot off the brake pedal. Remember, 'Pull Aside, Stay Alive'. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Entrekin
571 WWUS75 KBOU 150359 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 859 PM MST Tue Dec 14 2021 COZ035>039-151200- /O.CON.KBOU.HW.W.0010.211215T1500Z-211216T0000Z/ 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- Including the cities of Hartsel, Westcreek, Arvada, Central City, Red Feather Lakes, Bailey, Evergreen, Georgetown, Glendevey, Nederland, Fairplay, South Park, Boulder, Loveland, Estes Park, Longmont, Golden, Lakewood, Fort Collins, Nunn, Idaho Springs, Lake George, and Hereford 859 PM MST Tue Dec 14 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 30 to 50 mph with gusts reaching 60 to 80 mph. Wind prone areas in and near the foothills may see gusts near 100 mph. * WHERE...Central and Southeast Park County, 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, Larimer and Boulder Counties Between 6000 and 9000 Feet and Boulder and Jefferson Counties Below 6000 Feet/West Broomfield County Counties. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Gusty winds will blow around unsecured objects and a few power outages may result. Blowing dust will reduce visibility to less than a quarter mile in places. * ADDITIONAL DETAILS...Strong winds and low humidity will create critical fire weather conditions on the plains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Persons with respiratory problems should make preparations to stay indoors until the storm passes. Be ready for a sudden drop in visibility to near zero. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep foot off the brake pedal. Remember, 'Pull Aside, Stay Alive'. && $$ COZ040>051-151200- /O.CON.KBOU.HW.W.0010.211215T1500Z-211216T0000Z/ 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- Including the cities of Wiggins, Pawnee Buttes, Elbert, Hugo, Roggen, Forder, Julesburg, Larkspur, Agate, Briggsdale, Leader, Sterling, Fort Morgan, City of Denver, Crook, Aurora, Littleton, Amherst, Akron, Sedgwick, Raymer, Brighton, Highlands Ranch, Fort Lupton, Cope, Ovid, Matheson, Peetz, Kiowa, Grover, Eaton, Deer Trail, Byers, Fondis, Kutch, Denver International Airport, Haxtun, Last Chance, Parker, Castle Rock, Goodrich, Stoneham, Karval, Greeley, Bennett, Otis, Punkin Center, Holyoke, Brush, Limon, and Merino 859 PM MST Tue Dec 14 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 30 to 50 mph with gusts reaching 60 to 80 mph. * WHERE...Portions of east central and northeast Colorado. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Gusty winds will blow around unsecured objects and a few power outages may result. Blowing dust will reduce visibility to less than a quarter mile in places. * ADDITIONAL DETAILS...Strong winds and low humidity may create critical fire weather conditions on the plains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Persons with respiratory problems should make preparations to stay indoors until the storm passes. Be ready for a sudden drop in visibility to near zero. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep foot off the brake pedal. Remember, 'Pull Aside, Stay Alive'. && $$ For more information from the National Weather Service, visit https://weather.gov/bou RPK
475 WWUS75 KBOU 151148 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 448 AM MST Wed Dec 15 2021 COZ035>039-152000- /O.CON.KBOU.HW.W.0010.211215T1500Z-211216T0000Z/ 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- Including the cities of Hartsel, Westcreek, Arvada, Central City, Red Feather Lakes, Bailey, Evergreen, Georgetown, Glendevey, Nederland, Fairplay, South Park, Boulder, Loveland, Estes Park, Longmont, Golden, Lakewood, Fort Collins, Nunn, Idaho Springs, Lake George, and Hereford 448 AM MST Wed Dec 15 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 5 PM MST THIS AFTERNOON... * WHAT...West winds 30 to 50 mph with gusts reaching 60 to 80 mph. Wind prone areas in and near the foothills may see gusts near 100 mph. * WHERE...Central and Southeast Park County, 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, Larimer and Boulder Counties Between 6000 and 9000 Feet and Boulder and Jefferson Counties Below 6000 Feet/West Broomfield County Counties. * WHEN...From 8 AM this morning to 5 PM MST this afternoon. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Gusty winds will blow around unsecured objects and a few power outages may result. Blowing dust will reduce visibility to less than a quarter mile in places. * ADDITIONAL DETAILS...Strong winds and low humidity will create critical fire weather conditions on the plains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Persons with respiratory problems should make preparations to stay indoors until the storm passes. Be ready for a sudden drop in visibility to near zero. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep foot off the brake pedal. Remember, 'Pull Aside, Stay Alive'. && $$ COZ040>051-152000- /O.CON.KBOU.HW.W.0010.211215T1500Z-211216T0000Z/ 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- Including the cities of Wiggins, Pawnee Buttes, Elbert, Hugo, Roggen, Forder, Julesburg, Larkspur, Agate, Briggsdale, Leader, Sterling, Fort Morgan, City of Denver, Crook, Aurora, Littleton, Amherst, Akron, Sedgwick, Raymer, Brighton, Highlands Ranch, Fort Lupton, Cope, Ovid, Matheson, Peetz, Kiowa, Grover, Eaton, Deer Trail, Byers, Fondis, Kutch, Denver International Airport, Haxtun, Last Chance, Parker, Castle Rock, Goodrich, Stoneham, Karval, Greeley, Bennett, Otis, Punkin Center, Holyoke, Brush, Limon, and Merino 448 AM MST Wed Dec 15 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 5 PM MST THIS AFTERNOON... * WHAT...West winds 30 to 50 mph with gusts reaching 60 to 80 mph. * WHERE...Portions of east central and northeast Colorado. * WHEN...From 8 AM this morning to 5 PM MST this afternoon. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Gusty winds will blow around unsecured objects and a few power outages may result. Blowing dust will reduce visibility to less than a quarter mile in places. * ADDITIONAL DETAILS...Strong winds and low humidity may create critical fire weather conditions on the plains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain in the lower levels of your home during the windstorm, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Persons with respiratory problems should make preparations to stay indoors until the storm passes. Be ready for a sudden drop in visibility to near zero. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep foot off the brake pedal. Remember, 'Pull Aside, Stay Alive'. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Direnzo
800 WWUS75 KBOU 151632 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 932 AM MST Wed Dec 15 2021 COZ035>039-160000- /O.CON.KBOU.HW.W.0010.000000T0000Z-211216T0000Z/ 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- Including the cities of Hartsel, Westcreek, Arvada, Central City, Red Feather Lakes, Bailey, Evergreen, Georgetown, Glendevey, Nederland, Fairplay, South Park, Boulder, Loveland, Estes Park, Longmont, Golden, Lakewood, Fort Collins, Nunn, Idaho Springs, Lake George, and Hereford 932 AM MST Wed Dec 15 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...West winds 30 to 50 mph with gusts reaching 60 to 80 mph. Wind prone areas in and near the foothills may see gusts near 100 mph. * WHERE...Central and Southeast Park County, 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, Larimer and Boulder Counties Between 6000 and 9000 Feet and Boulder and Jefferson Counties Below 6000 Feet/West Broomfield County Counties. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Damaging winds will blow down trees and power lines. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles. Gusty winds will blow around unsecured objects and a few power outages may result. Blowing dust will reduce visibility to less than a quarter mile in places, including sections of I-25 between Denver and Fort Collins. * ADDITIONAL DETAILS...Strong winds and low humidity will create critical fire weather conditions as well. Avoid burning or any outdoor activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... Watch for flying debris and falling tree limbs. If possible, park your vehicle away from trees. Avoid windows in your home or business. Travel is not recommended, and use extreme caution if you must drive. If you encounter blowing dust on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep foot off the brake pedal. Remember, 'Pull Aside, Stay Alive'. && $$ COZ040>051-160000- /O.CON.KBOU.HW.W.0010.000000T0000Z-211216T0000Z/ 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- Including the cities of Wiggins, Pawnee Buttes, Elbert, Hugo, Roggen, Forder, Julesburg, Larkspur, Agate, Briggsdale, Leader, Sterling, Fort Morgan, City of Denver, Crook, Aurora, Littleton, Amherst, Akron, Sedgwick, Raymer, Brighton, Highlands Ranch, Fort Lupton, Cope, Ovid, Matheson, Peetz, Kiowa, Grover, Eaton, Deer Trail, Byers, Fondis, Kutch, Denver International Airport, Haxtun, Last Chance, Parker, Castle Rock, Goodrich, Stoneham, Karval, Greeley, Bennett, Otis, Punkin Center, Holyoke, Brush, Limon, and Merino 932 AM MST Wed Dec 15 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...West winds 30 to 50 mph with gusts reaching 60 to 80 mph. * WHERE...East central and northeast Colorado. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Damaging winds will blow down trees and power lines. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles. Gusty winds will blow around unsecured objects and a few power outages may result. Blowing dust will reduce visibility to less than a quarter mile in places. * ADDITIONAL DETAILS...Strong winds and low humidity will create critical fire weather conditions as well. Avoid burning or any outdoor activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... Watch for flying debris and falling tree limbs. If possible, park your vehicle away from trees. Avoid windows in your home or business. Travel is not recommended, and use extreme caution if you must drive. If you encounter blowing dust on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep foot off the brake pedal. Remember, 'Pull Aside, Stay Alive'. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Barjenbruch
745 WWUS75 KBOU 152353 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 453 PM MST Wed Dec 15 2021 COZ035>051-160100- /O.EXP.KBOU.HW.W.0010.000000T0000Z-211216T0000Z/ 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- Including the cities of Wiggins, Fort Morgan, Deer Trail, Hartsel, Karval, Elbert, Westcreek, Hugo, Roggen, Arvada, Central City, Red Feather Lakes, Julesburg, Larkspur, Agate, Bailey, Leader, Evergreen, Georgetown, Glendevey, Pawnee Buttes, Nederland, Crook, Aurora, Fairplay, Littleton, Amherst, Sterling, Akron, Last Chance, Sedgwick, Raymer, South Park, Byers, Boulder, Highlands Ranch, Fort Lupton, Cope, City of Denver, Ovid, Matheson, Loveland, Peetz, Kiowa, Grover, Eaton, Estes Park, Longmont, Fondis, Forder, Kutch, Denver International Airport, Haxtun, Goodrich, Golden, Parker, Castle Rock, Lakewood, Briggsdale, Stoneham, Fort Collins, Greeley, Bennett, Otis, Punkin Center, Holyoke, Nunn, Idaho Springs, Brush, Lake George, Limon, Hereford, Merino, and Brighton 453 PM MST Wed Dec 15 2021 ...HIGH WIND WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON... The threat of strong winds has ended. However, a few gusts to 60 mph will continue in the foothills and mountain areas this evening. $$ For more information from the National Weather Service, visit https://weather.gov/bou RPK
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 14, 11:54 AM MST | Winter Weather Advisory | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 32 hr |
| Dec 14, 12:17 PM MST | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 10 more | 29 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.