Alert archive / Colorado / High Wind Warnings in 2011

High Wind Warning 7, NWS Denver/Boulder, CO

November 11, 20119 counties in Colorado

NWS Denver/Boulder, CO issued this high wind warning at Nov 11, 2011, 3:04 AM MST for 9 counties in Colorado. It took effect at Nov 12, 2011, 12:00 AM MST. It was in force for 30 hr. 28 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
Nov 11, 2011, 3:04 AM MST (10:04 UTC)
In effect from
Nov 12, 2011, 12:00 AM MST
Expired
Nov 13, 2011, 6:00 AM MST
In force
30 hr
Issued by
NWS Denver/Boulder, CO

Counties Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Douglas County, CO, Gilpin County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Weld County, CO

The radar

The Denver radar (KFTG), 62 km from the middle of the area, began a volume at 10:10 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

TimeReportWhereRemark
Nov 12, 5:35 AM MSTNON-TSTM WND GST 838 Ne Four Corners, COSUSTAINED WINDS OF 68MPH
Nov 12, 6:27 AM MSTTSTM WND GST 764 Ene Nederland, CO
Nov 12, 6:27 AM MSTNON-TSTM WND GST 764 Ene Nederland, CO
Nov 12, 8:05 AM MSTNON-TSTM WND GST 683 S Boulder, CONCAR MESA LAB
Nov 12, 8:56 AM MSTNON-TSTM WND GST 765 Nw Boulder, CO
Nov 12, 10:10 AM MSTNON-TSTM WND GST 828 S Boulder, CONATIONAL WIND TECHNOLOGY CENTER
Nov 12, 11:06 AM MSTNON-TSTM WND GST 781 Nw Rollinsville, CO
Nov 12, 12:39 PM MSTNON-TSTM WND GST 997 Wnw Berthoud, CO
Nov 12, 12:57 PM MSTNON-TSTM WND GST 59Longmont, CO
Nov 12, 1:00 PM MSTNON-TSTM WND DMG2 S Boulder, COTWO STREET SIGNS BLOWN OVER
Nov 12, 1:20 PM MSTNON-TSTM WND GST 62N Longmont, CO
Nov 12, 2:13 PM MSTNON-TSTM WND GST 84Lyons, CO
Nov 12, 2:45 PM MSTNON-TSTM WND GST 693 Ssw Boulder, CONCAR MESA LAB
Nov 12, 2:47 PM MSTNON-TSTM WND GST 71Boulder, COSUSTAINED WINDS 45 MPH
Nov 12, 8:24 PM MSTNON-TSTM WND GST 652 Wnw Aspen Springs, COPICKLE GULCH RAWS
Nov 12, 8:29 PM MSTNON-TSTM WND GST 621 S Dumont, CODUMONT RAWS
Nov 12, 8:57 PM MSTNON-TSTM WND GST 112Sse Berthoud Pass, COSUSTAINED WINDS 84 MPH. MINES PEAK SUMMIT 12500 FEET.
Nov 12, 9:04 PM MSTNON-TSTM WND GST 781 Ene Ward, CO
Nov 12, 9:17 PM MSTNON-TSTM WND GST 113Sse Berthoud Pass, COSUSTAINED WINDS 86 MPH. MINES PEAK SUMMIT 12500 FEET.
Nov 12, 9:29 PM MSTNON-TSTM WND GST 80Dumont, CO
Nov 12, 9:45 PM MSTNON-TSTM WND GST 101Kenosha Pass, CO
Nov 12, 10:00 PM MSTNON-TSTM WND GST 84Loveland Pass, CO
Nov 12, 10:27 PM MSTNON-TSTM WND GST 83Sse Aspen Springs, CO
Nov 12, 10:30 PM MSTNON-TSTM WND GST 903 Ssw Boulder, CONCAR MESA LAB
Nov 12, 10:30 PM MSTNON-TSTM WND GST 903 Ssw Boulder, CONCAR MESA LAB
Nov 12, 11:03 PM MSTNON-TSTM WND GST 724 Ene Nederland, CO
Nov 12, 11:35 PM MSTNON-TSTM WND GST 772 Ene Estes Park, CO
Nov 13, 12:24 AM MSTNON-TSTM WND GST 872 Wnw Aspen Springs, 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, 10.1 hours before the alert went out and 173 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.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2011-11-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2011-11-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
4457 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

689 
WWUS75 KBOU 111004
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
304 AM MST FRI NOV 11 2011

...HIGH WINDS TO IMPACT THE FRONT RANGE FOOTHILLS LATE TONIGHT AND
SATURDAY...

.A STORM SYSTEM OVER ALASKA WILL MOVE ACROSS COLORADO ON SATURDAY
WHICH WILL INCREASE THE WESTERLY WINDS AHEAD OF THE STORM AFTER
MIDNIGHT TONIGHT. 

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.

COZ035-036-038-039-111815-
/O.UPG.KBOU.HW.A.0006.111112T0700Z-111113T0100Z/
/O.NEW.KBOU.HW.W.0007.111112T0700Z-111113T0100Z/
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-
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND...
RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN...
GEORGETOWN...IDAHO SPRINGS...WESTCREEK...FORT COLLINS...
HEREFORD...LOVELAND...NUNN...ARVADA...BOULDER...GOLDEN...
LAKEWOOD...LONGMONT
304 AM MST FRI NOV 11 2011

...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MST
SATURDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 


* TIMING...WESTERLY WINDS WILL INCREASE ACROSS THE FRONT RANGE
  FOOTHILLS AFTER MIDNIGHT TONIGHT AND CONTINUE THROUGH SATURDAY. 

* WINDS...WEST WINDS WILL INCREASE TO 30 TO 50 MPH WITH GUSTS IN
  EXCESS OF 75 MPH POSSIBLE LATE TONIGHT AND SATURDAY. THE
  STRONGEST WINDS ARE EXPECTED ACROSS WESTERN BOULDER AND WESTERN
  LARIMER COUNTIES WHERE A FEW GUSTS MAY REACH 100 MPH.

* IMPACTS...TRAVEL ACROSS NORTH TO SOUTH HIGHWAYS AND ROADS WILL
  BE VERY DIFFICULT DUE TO STRONG AND GUSTY CROSS WINDS. AREAS
  SUSCEPTIBLE TO HIGH WINDS INCLUDE...HIGHWAY 93 BETWEEN GOLDEN
  AND BOULDER...HIGHWAY C-470 ALONG THE FOOTHILLS IN JEFFERSON
  COUNTY...U.S. HIGHWAY 36 BETWEEN BROOMFIELD AND ESTES
  PARK...U.S. HIGHWAY 287 FROM LAFAYETTE TO THE WYOMING
  BORDER...AS WELL AS THE CARTER LAKE AND HORSETOOTH RESERVOIR
  AREAS IN LARIMER COUNTY.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY
DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY.

&&

$$
7 follow-up statements
120 
WWUS75 KBOU 111818
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
1118 AM MST FRI NOV 11 2011

...HIGH WINDS TO IMPACT THE FRONT RANGE FOOTHILLS LATE TONIGHT
AND SATURDAY...

.A STRONG STORM SYSTEM WILL MOVE FROM THE PACIFIC NORTHWEST
ACROSS COLORADO ON SATURDAY. WESTERLY WINDS WILL INCREASE IN
ADVANCE OF THIS SYSTEM TONIGHT...AND THEN CONTINUE THROUGH
SATURDAY AS THE STORM SYSTEM PASSES ACROSS THE REGION.

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.

COZ035-036-038-039-120615-
/O.CON.KBOU.HW.W.0007.111112T0700Z-111113T0100Z/
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-
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND...
RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN...
GEORGETOWN...IDAHO SPRINGS...WESTCREEK...FORT COLLINS...
HEREFORD...LOVELAND...NUNN...ARVADA...BOULDER...GOLDEN...
LAKEWOOD...LONGMONT
1118 AM MST FRI NOV 11 2011

...HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM MST SATURDAY...

A HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM MST SATURDAY. 

* TIMING...WESTERLY WINDS WILL INCREASE ACROSS THE FRONT RANGE 
  FOOTHILLS AFTER MIDNIGHT TONIGHT AND CONTINUE THROUGH 
  SATURDAY. 

* WINDS...WEST WINDS WILL INCREASE TO 30 TO 50 MPH WITH GUSTS IN
  EXCESS OF 75 MPH POSSIBLE LATE TONIGHT AND SATURDAY. THE
  STRONGEST WINDS ARE EXPECTED ACROSS WESTERN BOULDER AND WESTERN
  LARIMER COUNTIES WHERE A FEW GUSTS MAY APPROACH 100 MPH.

* IMPACTS...TRAVEL ACROSS NORTH TO SOUTH HIGHWAYS AND ROADS WILL
  BE VERY DIFFICULT DUE TO STRONG AND GUSTY CROSS WINDS. AREAS
  SUSCEPTIBLE TO HIGH WINDS INCLUDE...HIGHWAY 93 BETWEEN GOLDEN
  AND BOULDER...HIGHWAY C-470 ALONG THE FOOTHILLS IN JEFFERSON
  COUNTY...U.S. HIGHWAY 36 BETWEEN BROOMFIELD AND ESTES PARK...THE
  PEAK TO PEAK HIGHWAY FROM ESTES PARK THROUGH BLACKHAWK...U.S.
  HIGHWAY 287 FROM LAFAYETTE TO THE WYOMING BORDER...AS WELL AS
  THE CARTER LAKE AND HORSETOOTH RESERVOIR AREAS IN LARIMER
  COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY
DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY.

&&

$$
235 
WWUS75 KBOU 112318
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
418 PM MST FRI NOV 11 2011

...HIGH WINDS TO IMPACT THE FRONT RANGE FOOTHILLS LATE TONIGHT
AND SATURDAY...

.A STRONG STORM SYSTEM WILL MOVE FROM THE PACIFIC NORTHWEST
ACROSS COLORADO ON SATURDAY. WESTERLY WINDS WILL INCREASE IN
ADVANCE OF THIS SYSTEM TONIGHT...AND THEN CONTINUE THROUGH
SATURDAY AS THE STORM SYSTEM PASSES ACROSS THE REGION.

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.

COZ035-036-038-039-120730-
/O.CON.KBOU.HW.W.0007.111112T0700Z-111113T0100Z/
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-
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND...
RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN...
GEORGETOWN...IDAHO SPRINGS...WESTCREEK...FORT COLLINS...
HEREFORD...LOVELAND...NUNN...ARVADA...BOULDER...GOLDEN...
LAKEWOOD...LONGMONT
418 PM MST FRI NOV 11 2011

...HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM MST SATURDAY...

A HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM MST SATURDAY. 

* TIMING...WESTERLY WINDS WILL INCREASE ACROSS THE FRONT RANGE
  FOOTHILLS AFTER MIDNIGHT AND CONTINUE THROUGH SATURDAY.

* WINDS...WEST WINDS WILL INCREASE TO 30 TO 50 MPH WITH GUSTS IN
  EXCESS OF 75 MPH POSSIBLE LATE TONIGHT AND SATURDAY. THE
  STRONGEST WINDS ARE EXPECTED ACROSS WESTERN BOULDER AND WESTERN
  LARIMER COUNTIES WHERE A FEW GUSTS MAY APPROACH 90 MPH.

* IMPACTS...TRAVEL ACROSS NORTH TO SOUTH HIGHWAYS AND ROADS WILL 
  BE VERY DIFFICULT DUE TO STRONG AND GUSTY CROSS WINDS. AREAS 
  SUSCEPTIBLE TO HIGH WINDS INCLUDE...HIGHWAY 93 BETWEEN GOLDEN 
  AND BOULDER...HIGHWAY C-470 ALONG THE FOOTHILLS IN JEFFERSON 
  COUNTY...U.S. HIGHWAY 36 BETWEEN BROOMFIELD AND ESTES PARK...
  THE PEAK TO PEAK HIGHWAY FROM ESTES PARK THROUGH BLACKHAWK...
  U.S. HIGHWAY 287 FROM LAFAYETTE TO THE WYOMING BORDER...AS 
  WELL AS THE CARTER LAKE AND HORSETOOTH RESERVOIR AREAS IN 
  LARIMER COUNTY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY
DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY.

&&

$$
389 
WWUS75 KBOU 120447
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
947 PM MST FRI NOV 11 2011

...HIGH WINDS TO IMPACT THE FRONT RANGE FOOTHILLS LATE TONIGHT
AND SATURDAY...

.A STRONG STORM SYSTEM WILL MOVE FROM THE PACIFIC NORTHWEST
ACROSS COLORADO ON SATURDAY. WESTERLY WINDS WILL INCREASE IN
ADVANCE OF THIS SYSTEM OVERNIGHT...AND THEN CONTINUE THROUGH SATURDAY AS
THE STORM SYSTEM PASSES ACROSS THE REGION.

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.

COZ035-036-038-039-121300-
/O.CON.KBOU.HW.W.0007.111112T0700Z-111113T0100Z/
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-
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND...
RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN...
GEORGETOWN...IDAHO SPRINGS...WESTCREEK...FORT COLLINS...
HEREFORD...LOVELAND...NUNN...ARVADA...BOULDER...GOLDEN...
LAKEWOOD...LONGMONT
947 PM MST FRI NOV 11 2011

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST SATURDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST SATURDAY. 

* TIMING...WESTERLY WINDS WILL INCREASE ACROSS THE FRONT RANGE 
  FOOTHILLS AFTER MIDNIGHT AND CONTINUE THROUGH SATURDAY. 

* WINDS...WEST WINDS WILL INCREASE TO 30 TO 50 MPH WITH GUSTS IN
  EXCESS OF 75 MPH POSSIBLE LATE TONIGHT AND SATURDAY.

* IMPACTS...TRAVEL ACROSS NORTH TO SOUTH HIGHWAYS AND ROADS WILL 
  BE VERY DIFFICULT DUE TO STRONG AND GUSTY CROSS WINDS. AREAS 
  SUSCEPTIBLE TO HIGH WINDS INCLUDE...HIGHWAY 93 BETWEEN GOLDEN 
  AND BOULDER...HIGHWAY C-470 ALONG THE FOOTHILLS IN JEFFERSON 
  COUNTY...U.S. HIGHWAY 36 BETWEEN BROOMFIELD AND ESTES PARK... 
  THE PEAK TO PEAK HIGHWAY FROM ESTES PARK THROUGH BLACKHAWK... 
  U.S. HIGHWAY 287 FROM LAFAYETTE TO THE WYOMING BORDER...AS 
  WELL AS THE CARTER LAKE AND HORSETOOTH RESERVOIR AREAS IN 
  LARIMER COUNTY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY
DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY.

&&

$$
221 
WWUS75 KBOU 121104
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
404 AM MST SAT NOV 12 2011

...HIGH WINDS TO IMPACT THE FRONT RANGE FOOTHILLS TODAY...

.A STRONG STORM SYSTEM WILL MOVE FROM THE PACIFIC NORTHWEST
ACROSS COLORADO ON SATURDAY. WESTERLY WINDS WILL INCREASE IN
ADVANCE OF THIS SYSTEM THIS MORNING...AND THEN CONTINUE THROUGH
DAY AS THE STORM SYSTEM PASSES ACROSS THE REGION.

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.

COZ035-036-038-039-121900-
/O.CON.KBOU.HW.W.0007.000000T0000Z-111113T0100Z/
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-
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND...
RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN...
GEORGETOWN...IDAHO SPRINGS...WESTCREEK...FORT COLLINS...
HEREFORD...LOVELAND...NUNN...ARVADA...BOULDER...GOLDEN...
LAKEWOOD...LONGMONT
404 AM MST SAT NOV 12 2011

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING. 

* TIMING...WESTERLY WINDS WILL INCREASE ACROSS THE FRONT RANGE
  FOOTHILLS THIS MORNING AND CONTINUE THROUGH DAY.

* WINDS...WEST WINDS WILL INCREASE TO 30 TO 50 MPH WITH GUSTS IN
  EXCESS OF 75 MPH POSSIBLE.

* IMPACTS...TRAVEL ACROSS NORTH TO SOUTH HIGHWAYS AND ROADS WILL 
  BE VERY DIFFICULT DUE TO STRONG AND GUSTY CROSS WINDS. AREAS 
  SUSCEPTIBLE TO HIGH WINDS INCLUDE...HIGHWAY 93 BETWEEN GOLDEN 
  AND BOULDER...HIGHWAY C-470 ALONG THE FOOTHILLS IN JEFFERSON 
  COUNTY...U.S. HIGHWAY 36 BETWEEN BROOMFIELD AND ESTES PARK... 
  THE PEAK TO PEAK HIGHWAY FROM ESTES PARK THROUGH BLACKHAWK... 
  U.S. HIGHWAY 287 FROM LAFAYETTE TO THE WYOMING BORDER...AS 
  WELL AS THE CARTER LAKE AND HORSETOOTH RESERVOIR AREAS IN 
  LARIMER COUNTY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY
DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY.

&&

$$
908 
WWUS75 KBOU 121842
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
1142 AM MST SAT NOV 12 2011

...HIGH WINDS IN AND NEAR THE FRONT RANGE FOOTHILLS NOW EXPECTED
TO CONTINUE THROUGH THIS EVENING...

.A POTENT UPPER LEVEL STORM SYSTEM WILL MOVE ACROSS COLORADO THIS
EVENING. AT THE SAME TIME...A DEEP LOW PRESSURE SYSTEM WILL MOVE
INTO THE CENTRAL PLAINS. THE COMBINATION OF THE PASSAGE OF THE
UPPER LEVEL DISTURBANCE AND THE LOW PRESSURE SYSTEM MOVING TO OUR
EAST WILL KEEP FAVORABLE CONDITIONS FOR HIGH WINDS IN AND NEAR THE
FRONT RANGE FOOTHILLS THROUGH THIS EVENING. 

HIGH WIND REPORTS SO FAR INCLUDE...

83 MPH...8 MILES NORTHEAST OF FOUR CORNERS IN LARIMER COUNTY
82 MPH...8 MILES SOUTH OF BOULDER AT THE NATIONAL WIND TECHNOLOGY CENTER
76 MPH...5 MILES NORTHWEST OF BOULDER
76 MPH...4 MILES EAST/NORTHEAST OF NEDERLAND
68 MPH...3 MILES SOUTH OF BOULDER AT THE NCAR MESA LAB

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.

COZ035-036-130245-
/O.EXT.KBOU.HW.W.0007.000000T0000Z-111113T1300Z/
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-
INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND...
RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN...
GEORGETOWN...IDAHO SPRINGS...WESTCREEK
1142 AM MST SAT NOV 12 2011

...HIGH WIND WARNING NOW IN EFFECT UNTIL 6 AM MST SUNDAY...

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 6 AM MST SUNDAY. 

* TIMING...STRONG WEST WINDS WILL CONTINUE THROUGH MIDNIGHT...WITH
  A GRADUAL DECREASE EXPECTED BY DAYBREAK SUNDAY. 

* WINDS...WEST WINDS OF 25 TO 45 MPH WITH GUSTS IN EXCESS OF 75
  MPH.

* IMPACTS...TRAVEL ACROSS NORTH TO SOUTH HIGHWAYS AND ROADS WILL
  BE VERY DIFFICULT DUE TO STRONG AND GUSTY CROSS WINDS. AREAS
  SUSCEPTIBLE TO HIGH WINDS INCLUDE...HIGHWAY 93 BETWEEN GOLDEN
  AND BOULDER...HIGHWAY C-470 ALONG THE FOOTHILLS IN JEFFERSON
  COUNTY...U.S. HIGHWAY 36 BETWEEN BROOMFIELD AND ESTES PARK...
  THE PEAK TO PEAK HIGHWAY FROM ESTES PARK THROUGH BLACKHAWK...
  U.S. HIGHWAY 287 FROM BROOMFIELD TO THE WYOMING BORDER...AS
  WELL AS THE CARTER LAKE AND HORSETOOTH RESERVOIR AREAS IN
  LARIMER COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY
DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY.

&&

$$

COZ038-039-130245-
/O.EXT.KBOU.HW.W.0007.000000T0000Z-111113T0700Z/
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND...
NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT
1142 AM MST SAT NOV 12 2011

...HIGH WIND WARNING NOW IN EFFECT UNTIL MIDNIGHT MST TONIGHT...

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* TIMING...STRONG WEST WINDS WILL BECOME MORE WIDESPREAD THROUGH
  THE AFTERNOON AND EVENING HOURS. THE STRONGEST GUSTS UP TO 75
  MPH ARE EXPECTED TO CONTINUE INTO THE EVENING HOURS BEFORE
  DECREASING AROUND MIDNIGHT.

* WINDS...WEST WINDS WILL INCREASE TO 30 TO 50 MPH WITH GUSTS IN 
  EXCESS OF 75 MPH POSSIBLE. 

* IMPACTS...TRAVEL ACROSS NORTH TO SOUTH HIGHWAYS AND ROADS WILL
  BE VERY DIFFICULT DUE TO STRONG AND GUSTY CROSS WINDS. AREAS
  SUSCEPTIBLE TO HIGH WINDS INCLUDE...HIGHWAY 93 BETWEEN GOLDEN
  AND BOULDER...HIGHWAY C-470 ALONG THE FOOTHILLS IN JEFFERSON
  COUNTY...U.S. HIGHWAY 36 BETWEEN BROOMFIELD AND ESTES
  PARK...U.S. HIGHWAY 287 FROM BROOMFIELD TO THE WYOMING
  BORDER...AS WELL AS THE CARTER LAKE AND HORSETOOTH RESERVOIR
  AREAS IN LARIMER COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY
DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY.

&&

$$

BARJENBRUCH
672 
WWUS75 KBOU 130028
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
528 PM MST SAT NOV 12 2011

...A HIGH WIND WARNING CONTINUES IN AND NEAR THE FRONT RANGE FOOTHILLS...

.A STRONG STORM SYSTEM WILL MOVE ACROSS NORTHERN COLORADO AND
WYOMING THIS EVENING. DESPITE A DECREASE IN WINDS AROUND SUNSET...
CONDITIONS WILL REMAIN FAVORABLE FOR HIGH WINDS IN AND NEAR THE
FRONT RANGE FOOTHILLS AND THERE MAY BE AN INCREASE IN WINDS AGAIN
AHEAD OF A COLD FRONT LATER THIS EVENING.

THE STRONGEST WINDS REPORTED THIS AFTERNOON INCLUDE 99 MPH NEAR
CARTER LAKE IN LARIMER COUNTY...84 MPH IN LYONS...AND 71 MPH IN
BOULDER. 

COZ035-036-130830-
/O.CON.KBOU.HW.W.0007.000000T0000Z-111113T1300Z/
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-
INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND...
RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN...
GEORGETOWN...IDAHO SPRINGS...WESTCREEK
528 PM MST SAT NOV 12 2011

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MST SUNDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MST SUNDAY. 

* TIMING...STRONG WEST WINDS WILL CONTINUE THROUGH MIDNIGHT... 
  WITH A GRADUAL DECREASE EXPECTED BY DAYBREAK SUNDAY. 

* WINDS...WEST WINDS OF 25 TO 45 MPH WITH GUSTS IN EXCESS OF 75 
  MPH. 

* IMPACTS...TRAVEL ON HIGHWAYS IN THE FOOTHILLS WILL BE DIFFICULT
  AT TIMES DUE TO GUSTY WINDS. DAMAGE TO TREES AND BUILDINGS IS
  POSSIBLE AND MAY CAUSE POWER OUTAGES.

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.

&&

$$

COZ038-039-130700-
/O.CON.KBOU.HW.W.0007.000000T0000Z-111113T0700Z/
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND...
NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT
528 PM MST SAT NOV 12 2011

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT.

* TIMING...OCCASIONAL STRONG WEST WINDS CAN BE EXPECTED THROUGH
  THE EVENING HOURS. GUSTS UP TO 75 MPH ARE STILL POSSIBLE THROUGH
  ABOUT MIDNIGHT.

* WINDS...WEST WINDS OF 20 TO 40 MPH WITH GUSTS TO 75 MPH POSSIBLE.

* IMPACTS...TRAVEL ON HIGHWAYS NEAR THE FOOTHILLS WILL BE
  DIFFICULT AT TIMES DUE TO GUSTY WINDS. DAMAGE TO TREES AND
  BUILDINGS IS POSSIBLE AND MAY CAUSE POWER OUTAGES.

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.

&&

$$

GIMMESTAD
401 
WWUS75 KBOU 130652
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
1152 PM MST SAT NOV 12 2011

...A HIGH WIND WARNING CONTINUES IN THE FOOTHILLS OVERNIGHT...

STRONG WEST WINDS WILL CONTINUE TO BLOW OVERNIGHT IN THE
FOOTHILLS. THE STRONGEST WINDS WILL BE OVER HIGHER LOCATIONS.
THE MOST INTENSE WINDS AT THIS TIME ARE GUSTING BETWEEN 50 AND 75
FROM ESTES PARK THROUGH NEDERLAND TO DUMONT.

COZ038-039-130800-
/O.EXP.KBOU.HW.W.0007.000000T0000Z-111113T0700Z/
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND...
NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT
1152 PM MST SAT NOV 12 2011

...HIGH WIND WARNING WILL EXPIRE AT MIDNIGHT MST TONIGHT...

THE HIGH WIND WARNING WILL EXPIRE AT MIDNIGHT MST TONIGHT. 

WINDS HAVE SHIFTED TO THE NORTHEAST BEHIND A COLD FRONT AND
DECREASED TO 10 TO 20 MPH. THEREFORE...THE HIGH WIND WARNING WILL
BE ALLOWED TO EXPIRE AT MIDNIGHT. 

$$

COZ035-036-131300-
/O.CON.KBOU.HW.W.0007.000000T0000Z-111113T1300Z/
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-
INCLUDING THE CITIES OF...ESTES PARK...GLENDEVEY...NEDERLAND...
RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN...
GEORGETOWN...IDAHO SPRINGS...WESTCREEK
1152 PM MST SAT NOV 12 2011

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MST SUNDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MST SUNDAY. 

* TIMING...STRONG WEST WINDS WILL CONTINUE OVERNIGHT... WITH A
  GRADUAL DECREASE EXPECTED BY DAYBREAK SUNDAY.

* WINDS...WEST WINDS OF 25 TO 45 MPH WITH GUSTS IN EXCESS OF 75 
  MPH. 

* IMPACTS...TRAVEL ON HIGHWAYS IN THE FOOTHILLS WILL BE 
  DIFFICULT AT TIMES DUE TO GUSTY WINDS. DAMAGE TO TREES AND 
  BUILDINGS IS POSSIBLE AND MAY CAUSE POWER OUTAGES. 

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.

&&

$$

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 11, 10:23 AM MSTWinter Storm WarningBOUBoulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more62 hr
Nov 11, 10:23 AM MSTWinter Weather AdvisoryBOUGrand, Jackson, Summit54 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.