Alert archive / Colorado / High Wind Warnings in 2009

High Wind Warning 13, NWS Denver/Boulder, CO

January 12, 20096 counties in Colorado

NWS Denver/Boulder, CO issued this high wind warning at Jan 12, 2009, 4:13 AM MST for 6 counties in Colorado. It took effect at Jan 12, 2009, 8:00 AM MST. It was in force for 7 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
Jan 12, 2009, 4:13 AM MST (11:13 UTC)
In effect from
Jan 12, 2009, 8:00 AM MST
Expired
Jan 12, 2009, 2:58 PM MST
In force
7 hr
Issued by
NWS Denver/Boulder, CO

Counties Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO

The radar

The Denver radar (KFTG), 139 km from the middle of the area, began a volume at 11:16 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 00:00Z, 11.2 hours before the alert went out and 70 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 2009-01-12Temperature 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 2009-01-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 143 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
2337 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
243 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 121113
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
413 AM MST MON JAN 12 2009

...STRONG WINDS EXPECTED OVER PORTIONS OF NORTHEAST COLORADO TODAY...


COZ042-044-048>051-121915-
/O.NEW.KBOU.HW.W.0013.090112T1500Z-090112T2200Z/
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
413 AM MST MON JAN 12 2009

...HIGH WIND WARNING IN EFFECT FROM 8 AM THIS MORNING TO 3 PM MST
THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 8 AM THIS MORNING TO 3 PM MST
THIS AFTERNOON. 

NORTH TO NORTHWEST WINDS WILL INCREASE TO 25 TO 40 MPH THIS MORNING
WITH GUSTS OF 55 TO 60 MPH POSSIBLE FROM LATE MORNING THROUGH MID
AFTERNOON. THE WINDS WILL GRADUALLY DECREASE BY LATE AFTERNOON.

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

$$
2 follow-up statements
000 
WWUS75 KBOU 121842
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
1142 AM MST MON JAN 12 2009

...STRONG WINDS EXPECTED OVER PORTIONS OF NORTHEAST COLORADO
TODAY...

COZ042-044-048>051-122200-
/O.CON.KBOU.HW.W.0013.000000T0000Z-090112T2200Z/
NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY-
WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY-
INCLUDING...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
1142 AM MST MON JAN 12 2009

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON. 

NORTH TO NORTHWEST WINDS OF 25 TO 40 MPH WILL CONTINUE THROUGH MID
AFTERNOON...ALONG WITH SOME GUSTS OF 55 TO 60 MPH. THE WINDS WILL
GRADUALLY DECREASE BY LATE AFTERNOON.

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

$$
LESZCYNSKI
000 
WWUS75 KBOU 122158
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
258 PM MST MON JAN 12 2009

COZ042-044-048>051-122300-
/O.CAN.KBOU.HW.W.0013.000000T0000Z-090112T2200Z/
NORTHEAST WELD COUNTY-MORGAN COUNTY-LOGAN COUNTY-
WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY-
INCLUDING...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
258 PM MST MON JAN 12 2009

...HIGH WIND WARNING IS CANCELLED...

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

WINDS WILL CONTINUE TO DECREASE ACROSS THE NORTHEAST PLAINS OF
COLORADO THROUGH THE LATE AFTERNOON AND EVENING HOURS. BY
SUNSET...WIND SPEEDS WILL GENERALLY RANGE BETWEEN 15 AND 25 MPH.

PEAK WIND GUSTS REPORTED ACROSS THE PLAINS TODAY INCLUDED

55 MPH AT AKRON...
48 MPH AT JULESBURG...AND
60 MPH AT SIDNEY NEBRASKA.

$$

BARJENBRUCH

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 12, 12:58 AM MSTWinter Weather AdvisoryBOUAdams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 9 more15 hr
Jan 12, 8:49 AM MSTWinter Weather AdvisoryBOUAdams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 5 more2 hr

Nearby

High Wind Warnings in Colorado, 2009Every high wind warning in 2009

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.