Alert archive / Colorado / High Wind Warnings in 2011
High Wind Warning 8, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this high wind warning at Nov 18, 2011, 3:28 PM MST for 9 counties in Colorado. It took effect at Nov 19, 2011, 12:00 AM MST. It was in force for 3 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
- Nov 18, 2011, 3:28 PM MST (22:28 UTC)
- In effect from
- Nov 19, 2011, 12:00 AM MST
- Expired
- Nov 19, 2011, 3:10 AM MST
- In force
- 3 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Arapahoe County, CO, Boulder County, CO, Clear Creek County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO
The radar
The Denver radar (KFTG), 53 km from the middle of the area, began a volume at 22:30 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 (KDNR), launched 12:00Z, 10.5 hours before the alert went out and 165 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
- 3395 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 174 m²/s²
- 0-3 km storm-relative helicity
- 243 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
410 WWUS75 KBOU 182228 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 328 PM MST FRI NOV 18 2011 ...VERY STRONG WINDS EXPECTED OVER THE FRONT RANGE FOOTHILLS...PARK COUNTY...AND WESTERN DOUGLAS COUNTY... .STRONG WESTERLY WINDS AHEAD OF A STORM SYSTEM ACROSS THE PACIFIC NORTHWEST WILL DESCEND OVER THE FRONT RANGE FOOTHILLS AND LOCATIONS SOUTH ACROSS PARK COUNTY AND WESTERN DOUGLAS COUNTY LATER TONIGHT. THE WINDS WILL CONTINUE EARLY SATURDAY MORNING BEFORE DIMINISHING BY MIDDAY. COZ035>037-041-190630- /O.UPG.KBOU.HW.A.0007.111119T0700Z-111119T1800Z/ /O.NEW.KBOU.HW.W.0008.111119T0700Z-111119T1800Z/ 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- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND... RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK...FAIRPLAY...HARTSEL... LAKE GEORGE...SOUTH PARK...CASTLE ROCK...ELBERT...KIOWA... LARKSPUR...SIMLA 328 PM MST FRI NOV 18 2011 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 11 AM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 11 AM MST SATURDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * TIMING...GUSTY SOUTHWEST TO WEST WINDS WILL INCREASE LATER TONIGHT...WITH THE STRONGEST WINDS EXPECTED BETWEEN 3 AM AND 10 AM SATURDAY MORNING. * WINDS...SPEEDS OF 30 TO 50 MPH WITH GUSTS UP TO 75 MPH WILL PREVAIL LATER TONIGHT AND SATURDAY MORNING. * IMPACTS...TRAVEL ACROSS NORTH TO SOUTH HIGHWAYS AND ROADS WILL BECOME DIFFICULT DUE TO THE STRONG AND GUSTY CROSSWINDS... ESPECIALLY WHEN DRIVING HIGH PROFILE VEHICLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... PEOPLE PLANNING TRAVEL SHOULD BE PREPARED FOR STRONG CROSS WINDS CAUSING HAZARDOUS DRIVING CONDITIONS. DRIVERS OF LIGHT WEIGHT OR HIGH PROFILE VEHICLES SHOULD CONSIDER DELAYING TRAVEL OR USE ALTERNATE ROUTES. IF YOU ARE DRIVING ON THE ROADWAYS SLOW DOWN AND REMAIN ALERT FOR SUDDEN AND STRONG WIND GUSTS. && PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. && $$ LESZCYNSKI
2 follow-up statements
156 WWUS75 KBOU 190543 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1043 PM MST FRI NOV 18 2011 ...VERY STRONG WINDS EXPECTED OVER THE FRONT RANGE FOOTHILLS... PARK COUNTY...AND WESTERN DOUGLAS COUNTY... .STRONG WESTERLY WINDS AHEAD OF A STORM SYSTEM MOVING ACROSS THE ROCKIES WILL DESCEND OVER THE FRONT RANGE FOOTHILLS AND LOCATIONS SOUTHWARD ACROSS PARK COUNTY AND WESTERN DOUGLAS COUNTY LATER TONIGHT. THE WINDS WILL CONTINUE EARLY SATURDAY MORNING BEFORE DIMINISHING BY MIDDAY. COZ035>037-041-191345- /O.CON.KBOU.HW.W.0008.111119T0700Z-111119T1800Z/ 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- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND... RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK...FAIRPLAY...HARTSEL... LAKE GEORGE...SOUTH PARK...CASTLE ROCK...ELBERT...KIOWA... LARKSPUR...SIMLA 1043 PM MST FRI NOV 18 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY. * TIMING...GUSTY WEST TO SOUTHWEST WINDS WILL INCREASE OVERNIGHT...WITH THE STRONGEST WINDS EXPECTED BETWEEN 3 AM AND 10 AM SATURDAY MORNING. * WINDS...SPEEDS OF 25 TO 45 MPH WITH GUSTS UP TO 75 MPH CAN BE EXPECTED. * IMPACTS...TRAVEL ACROSS NORTH TO SOUTH HIGHWAYS AND ROADS WILL BECOME DIFFICULT DUE TO THE STRONG AND GUSTY CROSSWINDS... ESPECIALLY WHEN DRIVING HIGH PROFILE VEHICLES. PRECAUTIONARY/PREPAREDNESS ACTIONS... PEOPLE PLANNING TRAVEL SHOULD BE PREPARED FOR STRONG CROSS WINDS CAUSING HAZARDOUS DRIVING CONDITIONS. DRIVERS OF LIGHT WEIGHT OR HIGH PROFILE VEHICLES SHOULD CONSIDER DELAYING TRAVEL OR USE ALTERNATE ROUTES. IF YOU ARE DRIVING ON THE ROADWAYS SLOW DOWN AND REMAIN ALERT FOR SUDDEN AND STRONG WIND GUSTS. REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. && $$
794 WWUS75 KBOU 191010 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 310 AM MST SAT NOV 19 2011 COZ035>037-041-191115- /O.CAN.KBOU.HW.W.0008.000000T0000Z-111119T1800Z/ 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- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND... RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN... GEORGETOWN...IDAHO SPRINGS...WESTCREEK...FAIRPLAY...HARTSEL... LAKE GEORGE...SOUTH PARK...CASTLE ROCK...ELBERT...KIOWA... LARKSPUR...SIMLA 310 AM MST SAT NOV 19 2011 ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE HIGH WIND WARNING. THE THREAT OF HIGH WINDS HAS DECREASED AS A COLD FRONT PUSHES ACROSS THE REGION EARLY THIS MORNING. PEAK WIND GUSTS IN MOST AREAS ARE NOW EXPECTED TO BE 50 MPH OR LESS. $$ BARJENBRUCH
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 18, 5:14 AM MST | High Wind Watch | BOU | Arapahoe, Boulder, Clear Creek, Douglas, Elbert, Gilpin and 3 more | 10 hr |
| Nov 18, 3:47 PM MST | Winter Weather Advisory | BOU | Grand, Jackson | 19 hr |
Nearby
High Wind Warnings in Colorado, 2011Every high wind warning in 2011
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.