Alert archive / Colorado / High Wind Warnings in 2008

High Wind Warning 9, NWS Denver/Boulder, CO

December 18, 20087 counties in Colorado

NWS Denver/Boulder, CO issued this high wind warning at Dec 18, 2008, 5:32 PM MST for 7 counties in Colorado. It took effect at Dec 18, 2008, 8:00 PM MST. It was in force for 8 hr. 1 report 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 18, 2008, 5:32 PM MST (00:32 UTC)
In effect from
Dec 18, 2008, 8:00 PM MST
Expired
Dec 19, 2008, 3:52 AM MST
In force
8 hr
Issued by
NWS Denver/Boulder, CO

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

The radar

The Denver radar (KFTG), 74 km from the middle of the area, began a volume at 00:32 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
Dec 18, 10:00 PM MSTHEAVY SNOW 10N Fairplay, 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, 0.5 hours before the alert went out and 187 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 2008-12-19Temperature 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 2008-12-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -148 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
665 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-148 m²/s²
0-3 km storm-relative helicity
-193 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.

000 
WWUS75 KBOU 190032
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
532 PM MST THU DEC 18 2008

COZ035-036-190845-
/O.NEW.KBOU.HW.W.0009.081219T0300Z-081219T1200Z/
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...ESTES PARK...GLENDEVEY...NEDERLAND...
RED FEATHER LAKES...BAILEY...CENTRAL CITY...EVERGREEN...
GEORGETOWN...IDAHO SPRINGS...WESTCREEK
532 PM MST THU DEC 18 2008

...HIGH WIND WARNING IN EFFECT UNTIL 5 AM MST FRIDAY...

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 5 AM MST FRIDAY. 

A DEPARTING STORM SYSTEM WILL ALLOW FOR INCREASING WEST WINDS
ACROSS THE MOUNTAINS AND FRONT RANGE FOOTHILLS TONIGHT. THE WINDS
WILL INCREASE THIS EVENING WITH SPEEDS OF 20 TO 40 MPH AND GUSTS
UP TO 75 MPH POSSIBLE TONIGHT. THE STRONGEST WINDS WILL BE ALONG
EXPOSED HIGHER EAST SLOPES AND ESPECIALLY ALONG THE PEAK TO PEAK
HIGHWAY. THE WINDS WILL DECREASE FRIDAY MORNING. 

REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY
DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. PEOPLE
PLANNING TRAVEL INTO THE MOUNTAINS AND FRONT RANGE FOOTHILLS
SHOULD BE PREPARED FOR SUDDEN AND STRONG CROSS WINDS.  

$$

SWE
2 follow-up statements
000 
WWUS75 KBOU 190629
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
1129 PM MST THU DEC 18 2008

COZ035-036-191200-
/O.CON.KBOU.HW.W.0009.000000T0000Z-081219T1200Z/
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
1129 PM MST THU DEC 18 2008

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. 

A DEPARTING STORM SYSTEM WILL ALLOW FOR WEST WINDS ACROSS THE
MOUNTAINS AND FRONT RANGE FOOTHILLS TONIGHT. WIND SPEEDS OF 20 TO 40
MPH WITH A FEW GUSTS TO 75 MPH WILL BE POSSIBLE. THE STRONGEST
WINDS WILL BE ALONG EXPOSED HIGHER EAST SLOPES AND ESPECIALLY
ALONG THE PEAK TO PEAK HIGHWAY. THE WINDS WILL DECREASE FRIDAY
MORNING.

REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY
DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. PEOPLE
PLANNING TRAVEL INTO THE MOUNTAINS AND FRONT RANGE FOOTHILLS
SHOULD BE PREPARED FOR SUDDEN AND STRONG CROSS WINDS.

$$
000 
WWUS75 KBOU 191052
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
352 AM MST FRI DEC 19 2008


COZ035-036-191200-
/O.CAN.KBOU.HW.W.0009.000000T0000Z-081219T1200Z/
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
352 AM MST FRI DEC 19 2008

...HIGH WIND WARNING IS CANCELLED...

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



$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 19, 4:01 AM MSTWinter Weather AdvisoryBOUBoulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more37 hr

Nearby

High Wind Warnings in Colorado, 2008Every high wind warning in 2008

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.