Alert archive / Colorado / High Wind Warnings in 2012

High Wind Warning 3, NWS Denver/Boulder, CO

January 20, 201210 counties in Colorado

NWS Denver/Boulder, CO issued this high wind warning at Jan 20, 2012, 11:30 AM MST for 10 counties in Colorado. It took effect at Jan 21, 2012, 8:00 AM MST. It was in force for 7 hr. 2 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
Jan 20, 2012, 11:30 AM MST (18:30 UTC)
In effect from
Jan 21, 2012, 8:00 AM MST
Expired
Jan 21, 2012, 3:28 PM MST
In force
7 hr
Issued by
NWS Denver/Boulder, CO

Counties Boulder County, CO, Clear Creek County, CO, Douglas County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Summit County, CO

The radar

The Denver radar (KFTG), 94 km from the middle of the area, began a volume at 18:27 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
Jan 21, 9:16 AM MSTNON-TSTM WND GST 1008 Ne Four Corners, COELEVATION 8500 WITH PEAK SUSTAINED AT 72 MPH
Jan 21, 2:45 PM MSTNON-TSTM WND GST 761 S Blue Valley, 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 12:00Z, 6.5 hours before the alert went out and 206 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 12:00Z on 2012-01-20Temperature 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 12:00Z on 2012-01-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.1939587897Sfc1 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
2505 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
153 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.

459 
WWUS75 KBOU 201830
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
1130 AM MST FRI JAN 20 2012

...STRONG WINDS EXPECTED SATURDAY FOR THE EAST SLOPES OF THE MOUNTAINS
AND FOOTHILLS...

.THE NEXT PACIFIC SYSTEM BRINGING STRONG WINDS TO THE HIGHER
MOUNTAINS WILL COMBINE WITH A DEEPENING SURFACE TROUGH OVER THE
EASTERN PLAINS TO PRODUCING STRONG DOWNSLOPING WINDS. WEST WINDS
OF 30 TO 50 MPH WITH GUSTS TO 80 MPH WILL BE FELT ALONG THE
EASTERN SLOPES OF THE FRONT RANGE MOUNTAINS AS WELL AS IN THE
FOOTHILLS. 

COZ033>036-210230-
/O.NEW.KBOU.HW.W.0003.120121T1000Z-120122T0000Z/
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-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...CAMERON PASS...
LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE...
ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS...
BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE...
EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL...
INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS...
WILLIAMS FORK MOUNTAINS...WINTER PARK...ESTES PARK...GLENDEVEY...
NEDERLAND...RED FEATHER LAKES...BAILEY...CENTRAL CITY...
EVERGREEN...GEORGETOWN...IDAHO SPRINGS...WESTCREEK
1130 AM MST FRI JAN 20 2012

...HIGH WIND WARNING IN EFFECT FROM 3 AM TO 5 PM MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 3 AM TO 5 PM MST SATURDAY. 

* TIMING...WINDS WILL QUICKLY INCRASE BEFORE SUNRISE SATURDAY THEN
  DECREASE SATURDAY LATE AFTERNOON.

* WINDS...WEST AT 30 TO 50 MPH WITH GUSTS TO 80 MPH.

* IMPACTS...STRONG WINDS COULD PRODUCE POSSIBLE DAMAGE TO
  PROPERTY...TREES AND POWER LINES. DRIVING WILL BE HAZARDOUS DUE
  TO BLOWING SNOW AT HIGHER ELEVATIONS AS WELL AS HIGH PROFILE
  VEHICLES DEALING WITH STRONG CROSS WINDS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

IN ADDITION TO POWERFUL CROSSWINDS...DRIVERS SHOULD ALSO
ANTICIPATE AREAS OF BLOWING SNOW THAT WILL REDUCE VISIBILITY TO
NEAR ZERO CAUSING BRIEF WHITEOUT CONDITIONS. BE PREPARED FOR
LOCALIZED POWER OUTAGES...CONSIDERABLE BLOWING DUST AND
GRAVEL...FLYING DEBRIS...AND POWERFUL CROSSWINDS ON LOWER
ELEVATION HIGHWAYS. &&

$$
4 follow-up statements
781 
WWUS75 KBOU 210258
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
758 PM MST FRI JAN 20 2012

...STRONG WINDS EXPECTED SATURDAY FOR THE EAST SLOPES OF THE
MOUNTAINS AND FOOTHILLS...

.THE NEXT PACIFIC SYSTEM BRINGING STRONG WINDS TO THE HIGHER
MOUNTAINS WILL COMBINE WITH A DEEPENING SURFACE TROUGH OVER THE
EASTERN PLAINS TO PRODUCING STRONG DOWNSLOPING WINDS. WEST WINDS
OF 30 TO 50 MPH WITH GUSTS TO 80 MPH WILL BE FELT ALONG THE
EASTERN SLOPES OF THE FRONT RANGE MOUNTAINS AS WELL AS IN THE
FOOTHILLS.

COZ033>036-211100-
/O.CON.KBOU.HW.W.0003.120121T1000Z-120122T0000Z/
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-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...CAMERON PASS...
LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE...
ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS...
BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE...
EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL...
INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS...
WILLIAMS FORK MOUNTAINS...WINTER PARK...ESTES PARK...GLENDEVEY...
NEDERLAND...RED FEATHER LAKES...BAILEY...CENTRAL CITY...
EVERGREEN...GEORGETOWN...IDAHO SPRINGS...WESTCREEK
758 PM MST FRI JAN 20 2012

...HIGH WIND WARNING REMAINS IN EFFECT FROM 3 AM TO 5 PM MST
SATURDAY...

* TIMING...WINDS WILL QUICKLY INCRASE BEFORE SUNRISE SATURDAY 
  THEN DECREASE SATURDAY LATE AFTERNOON. 

* WINDS...WEST AT 30 TO 50 MPH WITH GUSTS TO 80 MPH.

* IMPACTS...STRONG WINDS COULD PRODUCE POSSIBLE DAMAGE TO 
  PROPERTY...TREES AND POWER LINES. DRIVING WILL BE HAZARDOUS 
  DUE TO BLOWING SNOW AT HIGHER ELEVATIONS AS WELL AS HIGH 
  PROFILE VEHICLES DEALING WITH STRONG CROSS WINDS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

IN ADDITION TO POWERFUL CROSSWINDS...DRIVERS SHOULD ALSO
ANTICIPATE AREAS OF BLOWING SNOW THAT WILL REDUCE VISIBILITY TO
NEAR ZERO CAUSING BRIEF WHITEOUT CONDITIONS. BE PREPARED FOR
LOCALIZED POWER OUTAGES...CONSIDERABLE BLOWING DUST AND GRAVEL...
FLYING DEBRIS...AND POWERFUL CROSSWINDS ON LOWER ELEVATION
HIGHWAYS. 
&&

$$
992 
WWUS75 KBOU 210845
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
145 AM MST SAT JAN 21 2012

...STRONG WINDS EXPECTED SATURDAY FOR THE EAST SLOPES OF THE
MOUNTAINS AND FOOTHILLS...

.THE NEXT PACIFIC SYSTEM BRINGING STRONG WINDS TO THE HIGHER
MOUNTAINS WILL COMBINE WITH A DEEPENING SURFACE TROUGH OVER THE
EASTERN PLAINS TO PRODUCING STRONG DOWNSLOPING WINDS. WEST WINDS
OF 30 TO 50 MPH WITH GUSTS TO 80 MPH WILL BE FELT ALONG THE
EASTERN SLOPES OF THE FRONT RANGE MOUNTAINS AS WELL AS IN THE
FOOTHILLS.

COZ033>036-211900-
/O.EXT.KBOU.HW.W.0003.120121T1500Z-120122T0000Z/
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-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...CAMERON PASS...
LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE...
ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS...
BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE...
EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL...
INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS...
WILLIAMS FORK MOUNTAINS...WINTER PARK...ESTES PARK...GLENDEVEY...
NEDERLAND...RED FEATHER LAKES...BAILEY...CENTRAL CITY...
EVERGREEN...GEORGETOWN...IDAHO SPRINGS...WESTCREEK
145 AM MST SAT JAN 21 2012

...HIGH WIND WARNING NOW IN EFFECT FROM 8 AM THIS MORNING TO 5 PM
MST THIS AFTERNOON...

* TIMING...WINDS WILL INCREASE SATURDAY MORNING THEN DECREASE
  SATURDAY LATE AFTERNOON.

* WINDS...WEST AT 30 TO 50 MPH WITH GUSTS TO 80 MPH.

* IMPACTS...STRONG WINDS COULD PRODUCE POSSIBLE DAMAGE TO 
  PROPERTY...TREES AND POWER LINES. DRIVING WILL BE HAZARDOUS 
  DUE TO BLOWING SNOW AT HIGHER ELEVATIONS AS WELL AS HIGH 
  PROFILE VEHICLES DEALING WITH STRONG CROSS WINDS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

IN ADDITION TO POWERFUL CROSSWINDS...DRIVERS SHOULD ALSO
ANTICIPATE AREAS OF BLOWING SNOW THAT WILL REDUCE VISIBILITY TO
NEAR ZERO CAUSING BRIEF WHITEOUT CONDITIONS. BE PREPARED FOR
LOCALIZED POWER OUTAGES...CONSIDERABLE BLOWING DUST AND GRAVEL...
FLYING DEBRIS...AND POWERFUL CROSSWINDS ON LOWER ELEVATION
HIGHWAYS. 
&&

$$
751 
WWUS75 KBOU 211651
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
951 AM MST SAT JAN 21 2012

...STRONG WINDS EXPECTED THIS AFTERNOON FOR THE EAST SLOPES OF THE
MOUNTAINS AND FOOTHILLS...

.THE SYSTEM BRINGING STRONG WINDS TO THE HIGHER MOUNTAINS WILL
COMBINE WITH A DEEPENING SURFACE TROUGH OVER THE EASTERN PLAINS TO
PRODUCE STRONG DOWNSLOPING WINDS...MAINLY AT ELEVATIONS ABOVE 8500
FEET. WEST WINDS OF 30 TO 50 MPH WITH GUSTS TO 80 MPH WILL BE FELT
ALONG THE EASTERN SLOPES OF THE FRONT RANGE MOUNTAINS AS WELL AS
IN THE FOOTHILLS...MAINLY DOWNWIND OF TERRAIN ORIENTED SOUTHEAST
TO NORTHWEST.

COZ033>036-220000-
/O.CON.KBOU.HW.W.0003.000000T0000Z-120122T0000Z/
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-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...CAMERON PASS...
LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE...
ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS...
BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE...
EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL...
INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS...
WILLIAMS FORK MOUNTAINS...WINTER PARK...ESTES PARK...GLENDEVEY...
NEDERLAND...RED FEATHER LAKES...BAILEY...CENTRAL CITY...
EVERGREEN...GEORGETOWN...IDAHO SPRINGS...WESTCREEK
951 AM MST SAT JAN 21 2012

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* TIMING...WINDS WILL INCREASE THROUGH LATE MORNING PEAKING
  BETWEEN NOON AT 3 PM THEN DECREASE LATE AFTERNOON.

* WINDS...WEST TO SOUTHWEST AT 30 TO 50 MPH WITH GUSTS TO 80 MPH.

* IMPACTS...STRONG WINDS COULD PRODUCE POSSIBLE DAMAGE TO 
  PROPERTY...TREES AND POWER LINES. DRIVING WILL BE HAZARDOUS 
  DUE TO BLOWING SNOW AT HIGHER ELEVATIONS AS WELL AS HIGH 
  PROFILE VEHICLES DEALING WITH STRONG CROSS WINDS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

IN ADDITION TO POWERFUL CROSSWINDS...DRIVERS SHOULD ALSO
ANTICIPATE AREAS OF BLOWING SNOW THAT WILL REDUCE VISIBILITY TO
NEAR ZERO CAUSING BRIEF WHITEOUT CONDITIONS. BE PREPARED FOR
LOCALIZED POWER OUTAGES...CONSIDERABLE BLOWING DUST AND GRAVEL...
FLYING DEBRIS...AND POWERFUL CROSSWINDS ON LOWER ELEVATION
HIGHWAYS. 
&&

$$
788 
WWUS75 KBOU 212228
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
328 PM MST SAT JAN 21 2012

...STRONG WINDS EXPECTED SUNDAY OVER THE NORTHEAST PLAINS...

.STRONG WINDS ALOFT ON THE BACKSIDE OF A LOW WILL COMBINE WITH A
STRONG SURFACE PRESSURE GRADIENT TO BRING GUSTY NORTHWEST WINDS TO
THE NORTHEAST PLAINS OF COLORADO. WINDS OF 30 TO 45 MPH SUSTAINED
WITH GUSTS UP TO 60 MPH WILL BE POSSIBLE BEGINNING AROUND SUNRISE
AS A COLD FRONT MOVES SOUTHEAST ACROSS THE AREA.  

COZ033>036-212330-
/O.CAN.KBOU.HW.W.0003.000000T0000Z-120122T0000Z/
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-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...CAMERON PASS...
LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE...
ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS...
BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE...
EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL...
INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS...
WILLIAMS FORK MOUNTAINS...WINTER PARK...ESTES PARK...GLENDEVEY...
NEDERLAND...RED FEATHER LAKES...BAILEY...CENTRAL CITY...
EVERGREEN...GEORGETOWN...IDAHO SPRINGS...WESTCREEK
328 PM MST SAT JAN 21 2012

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE HIGH
WIND WARNING. 

HIGH WIND CRITERIA WILL NO LONGER OCCUR...HOWEVER EXPECT GUSTS OF
45 TO 55 MPH TO CONTINUE OVER ELEVATIONS ABOVE 8500 FEET IN THE
FOOTHILLS AND ALONG THE EASTERN SLOPES OF THE FRONT RANGE
MOUNTAINS.

$$

COZ042-044-048>051-220700-
/O.NEW.KBOU.HW.W.0004.120122T1200Z-120123T0000Z/
NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY-
WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY-
INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES...
RAYMER...STONEHAM...BRUSH...FORT MORGAN...GOODRICH...WIGGINS...
CROOK...MERINO...STERLING...PEETZ...AKRON...COPE...LAST CHANCE...
OTIS...JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE
328 PM MST SAT JAN 21 2012

...HIGH WIND WARNING IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY. 

* TIMING...WINDS WILL INCREASE RIGHT BEFORE SUNRISE AND CONTINUE
  INTO THE AFTERNOON. 

* WINDS...NORTHWEST WINDS OF 30 TO 45 MPH WITH GUSTS REACHING 60
  MPH WITH PASSING SHOWERS. 

* IMPACTS...TRAVEL WILL BECOME HAZARDOUS ESPECIALLY ALONG
  INTERSTATE 76 FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES.
  BLOWING DUST WILL REDUCE VISIBILITIES AS WELL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

RESIDENTS IN THE WARNING AREA ARE URGED TO BRING INDOORS ANY LOOSE
ITEMS SUCH AS GARBAGE CANS AND PATIO FURNITURE THAT MAY BE BLOWN
ABOUT BY THE STRONG WINDS.


&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 19, 8:12 PM MSTWinter Weather AdvisoryBOUBoulder, Grand, Jackson, Larimer15 hr
Jan 20, 4:31 AM MSTWinter Storm WatchBOUBoulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more7 hr
Jan 20, 11:26 AM MSTWinter Storm WarningBOUBoulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more48 hr
Jan 20, 11:26 AM MSTWinter Weather AdvisoryBOUGrand, Jackson, Summit43 hr

Nearby

High Wind Warnings in Colorado, 2012Every high wind warning in 2012

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.