Alert archive / Colorado / High Wind Warnings in 2011
High Wind Warning 6, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this high wind warning at Oct 6, 2011, 2:48 AM MDT for 11 counties in Colorado. It took effect at Oct 6, 2011, 12:00 PM MDT. It was in force for 7 hr. 14 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
- Oct 6, 2011, 2:48 AM MDT (08:48 UTC)
- In effect from
- Oct 6, 2011, 12:00 PM MDT
- Expired
- Oct 6, 2011, 7:00 PM MDT
- In force
- 7 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Lincoln County, CO, Logan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 62 km from the middle of the area, began a volume at 08:54 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 |
|---|---|---|---|
| Oct 6, 12:45 PM MDT | NON-TSTM WND GST 59 | Limon, CO | |
| Oct 6, 1:05 PM MDT | NON-TSTM WND GST 58 | Cedar Point, CO | |
| Oct 6, 2:16 PM MDT | NON-TSTM WND GST 61 | Akron, CO | |
| Oct 6, 2:39 PM MDT | NON-TSTM WND GST 61 | Denver Intl Airport, CO | |
| Oct 6, 2:45 PM MDT | NON-TSTM WND GST 66 | Cedar Point, CO | SUSTAINED 50 MPH GUSTING TO 66 MPH |
| Oct 6, 2:53 PM MDT | NON-TSTM WND GST 58 | Deer Trail, CO | |
| Oct 6, 2:53 PM MDT | NON-TSTM WND GST 61 | Denver Intl Airport, CO | |
| Oct 6, 2:54 PM MDT | NON-TSTM WND GST 58 | Deer Trail, CO | |
| Oct 6, 3:12 PM MDT | NON-TSTM WND GST 58 | Akron, CO | |
| Oct 6, 3:13 PM MDT | NON-TSTM WND GST 60 | Woodrow, CO | |
| Oct 6, 3:26 PM MDT | NON-TSTM WND GST 63 | Denver Intl Airport, CO | |
| Oct 6, 4:09 PM MDT | NON-TSTM WND GST 62 | Julesburg, CO | ROOF DAMAGE IN JULESBURG |
| Oct 6, 4:16 PM MDT | NON-TSTM WND GST 63 | Denver Intl Airport, CO | |
| Oct 6, 4:36 PM MDT | NON-TSTM WND GST 61 | Holyoke, CO |
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, 8.8 hours before the alert went out and 52 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
- 3278 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
819 WWUS75 KBOU 060848 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 248 AM MDT THU OCT 6 2011 ...VERY STRONG WINDS ON THE PLAINS TODAY... .STRONG AND GUSTY SOUTHERLY WINDS WILL DEVELOP ACROSS EASTERN COLORADO TODAY. THE STRONGEST WINDS CAN BE EXPECTED FROM THE PALMER DIVIDE EAST AND NORTHEAST THROUGH THE LIMON...AKRON... STERLING...AND JULESBURG AREAS. THE DEVELOPMENT OF A STRONG LOW PRESSURE SYSTEM OVER EASTERN WYOMING AND THE NEBRASKA PANHANDLE IN ADVANCE OF A POTENT PACIFIC STORM SYSTEM MOVING IN FROM THE WEST WILL PRODUCE THESE STRONG AND GUSTY WINDS. TRAVEL WILL BE DIFFICULT FOR HIGH PROFILE VEHICLES ACROSS NORTHEAST COLORADO...INCLUDING INTERSTATE 70 AND INTERSTATE 76 FROM DENVER TO THE KANSAS AND NEBRASKA BORDERS. BLOWING DUST MAY ALSO REDUCE VISIBILITIES TO NEAR ZERO AT TIMES IN OPEN AREAS. IF YOU ARE TRAVELING...BE PREPARED FOR HAZARDOUS DRIVING CONDITIONS. COZ046-047-061700- /O.UPG.KBOU.HW.A.0005.111006T1800Z-111007T0300Z/ /O.NEW.KBOU.HW.W.0006.111006T1800Z-111007T0100Z/ NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...AGATE...HUGO...LIMON...MATHESON... FORDER...KARVAL...KUTCH...PUNKIN CENTER 248 AM MDT THU OCT 6 2011 ...HIGH WIND WARNING IN EFFECT FROM NOON TODAY TO 7 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM MDT THIS EVENING. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * TIMING...WINDS WILL INCREASE THIS MORNING AND BECOME STRONG BY THE NOON HOUR. THE STRONG AND GUSTY WINDS WILL THEN CONTINUE THROUGH EARLY EVENING BEFORE RELAXING. * WINDS...SOUTH TO SOUTHWEST WINDS OF 35 TO 45 MPH WITH GUSTS AROUND 60 MPH WILL OCCUR. * IMPACTS...PEOPLE PLANNING TRAVEL ACROSS THE EASTERN PLAINS OF COLORADO SHOULD ANTICIPATE STRONG CROSS WINDS AND HAZARDOUS DRIVING CONDITIONS. DRIVERS OF LIGHT WEIGHT AND HIGH PROFILE VEHICLES WILL BE MOST SUSCEPTIBLE TO STRONG CROSS WINDS AND SHOULD CONSIDER DELAYING TRAVEL UNTIL THE WINDS SUBSIDE LATER THIS EVENING. THE STRONG WINDS BLOWING ACROSS RECENTLY PLOWED FIELDS COULD ALSO PRODUCE CONSIDERABLE BLOWING DUST THAT COULD REDUCE VISIBILITIES TO NEAR ZERO AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. && $$ COZ041-048>051-061700- /O.NEW.KBOU.HW.W.0006.111006T1800Z-111007T0100Z/ ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...CASTLE ROCK...ELBERT...FONDIS...KIOWA... LARKSPUR...CROOK...MERINO...STERLING...PEETZ...AKRON...COPE... LAST CHANCE...OTIS...JULESBURG...OVID...SEDGWICK...AMHERST... HAXTUN...HOLYOKE 248 AM MDT THU OCT 6 2011 ...HIGH WIND WARNING IN EFFECT FROM NOON TODAY TO 7 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM MDT THIS EVENING. * TIMING...WINDS WILL INCREASE THIS MORNING AND BECOME STRONG BY THE NOON HOUR. THE STRONG AND GUSTY WINDS WILL THEN CONTINUE THROUGH EARLY EVENING BEFORE RELAXING. * WINDS...SOUTH TO SOUTHWEST WINDS OF 35 TO 45 MPH WITH GUSTS AROUND 60 MPH WILL OCCUR. * IMPACTS...PEOPLE PLANNING TRAVEL ACROSS THE EASTERN PLAINS OF COLORADO SHOULD ANTICIPATE STRONG CROSS WINDS AND HAZARDOUS DRIVING CONDITIONS. DRIVERS OF LIGHT WEIGHT AND HIGH PROFILE VEHICLES WILL BE MOST SUSCEPTIBLE TO STRONG CROSS WINDS AND SHOULD CONSIDER DELAYING TRAVEL UNTIL THE WINDS SUBSIDE LATER THIS EVENING. THE STRONG WINDS BLOWING ACROSS RECENTLY PLOWED FIELDS COULD ALSO PRODUCE CONSIDERABLE BLOWING DUST THAT COULD REDUCE VISIBILITIES TO NEAR ZERO AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. && $$ BARJENBRUCH
3 follow-up statements
183 WWUS75 KBOU 061714 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1114 AM MDT THU OCT 6 2011 ...VERY STRONG WINDS ON THE PLAINS TODAY... .STRONG AND GUSTY SOUTHERLY WINDS WILL CONTINUE ACROSS EASTERN COLORADO INTO EARLY THIS EVENING. THE STRONGEST WINDS CAN BE EXPECTED FROM THE PALMER DIVIDE EAST AND NORTHEAST THROUGH THE LIMON...AKRON... STERLING...AND JULESBURG AREAS. THE DEVELOPMENT OF A STRONG LOW PRESSURE SYSTEM OVER EASTERN WYOMING AND THE NEBRASKA PANHANDLE IN ADVANCE OF A POTENT PACIFIC STORM SYSTEM MOVING IN FROM THE WEST WILL PRODUCE THESE STRONG AND GUSTY WINDS. TRAVEL WILL BE DIFFICULT FOR HIGH PROFILE VEHICLES ACROSS NORTHEAST COLORADO...INCLUDING INTERSTATE 70 AND INTERSTATE 76 FROM DENVER TO THE KANSAS AND NEBRASKA BORDERS. BLOWING DUST MAY ALSO REDUCE VISIBILITIES TO NEAR ZERO AT TIMES IN OPEN AREAS. IF YOU ARE TRAVELING...BE PREPARED FOR HAZARDOUS DRIVING CONDITIONS. COZ041-046>051-070100- /O.CON.KBOU.HW.W.0006.111006T1800Z-111007T0100Z/ 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- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR... AGATE...HUGO...LIMON...MATHESON...FORDER...KARVAL...KUTCH... PUNKIN CENTER...CROOK...MERINO...STERLING...PEETZ...AKRON... COPE...LAST CHANCE...OTIS...JULESBURG...OVID...SEDGWICK... AMHERST...HAXTUN...HOLYOKE 1114 AM MDT THU OCT 6 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... * TIMING...WINDS WILL INCREASE THIS MORNING AND BECOME STRONG BY THE NOON HOUR. THE STRONG AND GUSTY WINDS WILL THEN CONTINUE THROUGH EARLY EVENING BEFORE RELAXING. * WINDS...SOUTH TO SOUTHWEST WINDS OF 35 TO 45 MPH WITH GUSTS AROUND 60 MPH WILL OCCUR. * IMPACTS...PEOPLE PLANNING TRAVEL ACROSS THE EASTERN PLAINS OF COLORADO SHOULD ANTICIPATE STRONG CROSS WINDS AND HAZARDOUS DRIVING CONDITIONS. DRIVERS OF LIGHT WEIGHT AND HIGH PROFILE VEHICLES WILL BE MOST SUSCEPTIBLE TO STRONG CROSS WINDS AND SHOULD CONSIDER DELAYING TRAVEL UNTIL THE WINDS SUBSIDE LATER THIS EVENING. THE STRONG WINDS BLOWING ACROSS RECENTLY PLOWED FIELDS COULD ALSO PRODUCE CONSIDERABLE BLOWING DUST THAT COULD REDUCE VISIBILITIES TO NEAR ZERO AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. && $$
822 WWUS75 KBOU 062132 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 332 PM MDT THU OCT 6 2011 ...VERY STRONG WINDS ON THE PLAINS TODAY... .STRONG AND GUSTY SOUTHERLY WINDS WILL CONTINUE ACROSS EASTERN COLORADO INTO EARLY THIS EVENING. THE STRONGEST WINDS CAN BE EXPECTED FROM THE PALMER DIVIDE EAST AND NORTHEAST THROUGH THE LIMON...AKRON... STERLING...AND JULESBURG AREAS. THE STRONG WINDS HAVE ALSO INCREASED OVER EASTERN SECTIONS OF THE DENVER AREA...INCLUDING DENVER INTERNATIONAL AIRPORT. THE DEVELOPMENT OF A STRONG LOW PRESSURE SYSTEM OVER EASTERN WYOMING AND THE NEBRASKA PANHANDLE IN ADVANCE OF A POTENT PACIFIC STORM SYSTEM MOVING IN FROM THE WEST WILL PRODUCE THESE STRONG AND GUSTY WINDS. TRAVEL WILL BE DIFFICULT FOR HIGH PROFILE VEHICLES ACROSS NORTHEAST COLORADO...INCLUDING INTERSTATE 70 AND INTERSTATE 76 FROM DENVER TO THE KANSAS AND NEBRASKA BORDERS. BLOWING DUST MAY ALSO REDUCE VISIBILITIES TO NEAR ZERO AT TIMES IN OPEN AREAS. IF YOU ARE TRAVELING...BE PREPARED FOR HAZARDOUS DRIVING CONDITIONS. COZ040-045-070100- /O.EXA.KBOU.HW.W.0006.000000T0000Z-111007T0100Z/ NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- INCLUDING THE CITIES OF...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...BENNETT...BYERS...DEER TRAIL...LEADER 332 PM MDT THU OCT 6 2011 ...HIGH WIND WARNING IN EFFECT UNTIL 7 PM MDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT UNTIL 7 PM MDT THIS EVENING. * WINDS...SOUTH TO SOUTHWEST WINDS OF 35 TO 45 MPH WITH GUSTS AROUND 60 MPH WILL OCCUR. * IMPACTS...PEOPLE PLANNING TRAVEL ACROSS THE EASTERN PLAINS OF COLORADO SHOULD ANTICIPATE STRONG CROSS WINDS AND HAZARDOUS DRIVING CONDITIONS. DRIVERS OF LIGHT WEIGHT AND HIGH PROFILE VEHICLES WILL BE MOST SUSCEPTIBLE TO STRONG CROSS WINDS AND SHOULD CONSIDER DELAYING TRAVEL UNTIL THE WINDS SUBSIDE LATER THIS EVENING. THE STRONG WINDS BLOWING ACROSS RECENTLY PLOWED FIELDS COULD ALSO PRODUCE CONSIDERABLE BLOWING DUST THAT COULD REDUCE VISIBILITIES TO NEAR ZERO AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. && $$ COZ041-046>051-070100- /O.CON.KBOU.HW.W.0006.000000T0000Z-111007T0100Z/ 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- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...CASTLE ROCK...ELBERT...FONDIS...KIOWA... LARKSPUR...AGATE...HUGO...LIMON...MATHESON...FORDER...KARVAL... KUTCH...PUNKIN CENTER...CROOK...MERINO...STERLING...PEETZ... AKRON...COPE...LAST CHANCE...OTIS...JULESBURG...OVID...SEDGWICK... AMHERST...HAXTUN...HOLYOKE 332 PM MDT THU OCT 6 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING. * WINDS...SOUTH TO SOUTHWEST WINDS OF 35 TO 45 MPH WITH GUSTS AROUND 60 MPH WILL OCCUR. * IMPACTS...PEOPLE PLANNING TRAVEL ACROSS THE EASTERN PLAINS OF COLORADO SHOULD ANTICIPATE STRONG CROSS WINDS AND HAZARDOUS DRIVING CONDITIONS. DRIVERS OF LIGHT WEIGHT AND HIGH PROFILE VEHICLES WILL BE MOST SUSCEPTIBLE TO STRONG CROSS WINDS AND SHOULD CONSIDER DELAYING TRAVEL UNTIL THE WINDS SUBSIDE LATER THIS EVENING. THE STRONG WINDS BLOWING ACROSS RECENTLY PLOWED FIELDS COULD ALSO PRODUCE CONSIDERABLE BLOWING DUST THAT COULD REDUCE VISIBILITIES TO NEAR ZERO AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. && $$
813 WWUS75 KBOU 070103 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 703 PM MDT THU OCT 6 2011 COZ040-041-045>051-070215- /O.EXP.KBOU.HW.W.0006.000000T0000Z-111007T0100Z/ NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...FONDIS...KIOWA...LARKSPUR... BENNETT...BYERS...DEER TRAIL...LEADER...AGATE...HUGO...LIMON... MATHESON...FORDER...KARVAL...KUTCH...PUNKIN CENTER...CROOK... MERINO...STERLING...PEETZ...AKRON...COPE...LAST CHANCE...OTIS... JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 703 PM MDT THU OCT 6 2011 ...HIGH WIND WARNING HAS EXPIRED... THE HIGH WIND WARNING IS NO LONGER IN EFFECT. THE STRONG SOUTHERLY WINDS HAVE DECREASED IN THE LAST SEVERAL HOURS...WITH GUSTS MAINLY IN THE 25 TO 35 MPH RANGE OVER THE NORTHEAST PLAINS. THERE COULD STILL BE SOME HIGHER GUSTS UP TO TO 45 MPH WITH THE SHOWERS OVER THE FAR EASTERN PLAINS. THE WINDS WILL CONTINUE TO DECREASE TONIGHT. $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 6, 4:27 AM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 10 more | 16 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.