Alert archive / Colorado / Red Flag Warnings in 2011

Red Flag Warning 24, NWS Grand Junction, CO

August 31, 2011Moffat County, Rio Blanco County, Colorado

NWS Grand Junction, CO issued this red flag warning at Aug 31, 2011, 3:02 PM MDT for Moffat County, Rio Blanco County, Colorado. It took effect at Sep 1, 2011, 12:00 PM MDT. It was in force for 9 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
Aug 31, 2011, 3:02 PM MDT (21:02 UTC)
In effect from
Sep 1, 2011, 12:00 PM MDT
Expired
Sep 1, 2011, 8:49 PM MDT
In force
9 hr
Issued by
NWS Grand Junction, CO

Counties Moffat County, CO, Rio Blanco County, CO

The radar

The Grand Junction radar (KGJX), 138 km from the middle of the area, began a volume at 21:03 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 forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Junction, CO wrote its last area forecast discussion before this red flag warning went out at Aug 31, 11:55 AM MDT, 3 hours 7 minutes earlier.

Area forecast discussion, Aug 31, 11:55 AM MDT, 3 hours 7 minutes before
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Hazardous weather outlook, Aug 31, 6:00 AM MDT, 9 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
600 AM MDT WED AUG 31 2011

COZ001>014-017>023-UTZ022>025-027>029-011248-
ANIMAS RIVER BASIN-ARCHES/GRAND FLAT-CANYONLANDS/NATURAL BRIDGES-
CENTRAL COLORADO RIVER BASIN-
CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN-
CENTRAL YAMPA RIVER BASIN-DEBEQUE TO SILT CORRIDOR-
EASTERN UINTA BASIN-EASTERN UINTA MOUNTAINS-
ELKHEAD AND PARK MOUNTAINS-FLAT TOPS-
FOUR CORNERS/UPPER DOLORES RIVER-
GORE AND ELK MOUNTAINS/CENTRAL MOUNTAINS-GRAND AND BATTLEMENT MESAS-
GRAND VALLEY-LA SAL AND ABAJO MOUNTAINS-LOWER YAMPA RIVER BASIN-
NORTHWEST SAN JUAN MOUNTAINS-PARADOX VALLEY/LOWER DOLORES RIVER-
ROAN AND TAVAPUTS PLATEAUS-SAN JUAN RIVER BASIN-SOUTHEAST UTAH-
SOUTHWEST SAN JUAN MOUNTAINS-TAVAPUTS PLATEAU-
UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE-UPPER GUNNISON RIVER VALLEY-
UPPER YAMPA RIVER BASIN-WEST ELK AND SAWATCH MOUNTAINS-
600 AM MDT WED AUG 31 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN
COLORADO.

.DAY ONE...TODAY AND TONIGHT...

SOME ISOLATED SHOWERS AND STORMS POSSIBLE TODAY...MAINLY OVER HIGHER
TERRAIN.  WINDS WILL ALSO PICK UP THIS AFTERNOON GUSTING UP TO 30
MPH FOR AREAS NORTH OF INTERSTATE 70 THOUGH AREAS SOUTH WILL SEE
SOME STRONGER WINDS TOO.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

ANOTHER ROUND OF MAINLY DIURNAL SHOWERS AND THUNDERSTORMS WILL
DEVELOP ON THURSDAY...FAVORING THE SOUTH. ISOLATED STORMS MAY PRODUCE
GUSTY WINDS...BRIEF HEAVY RAIN AND SMALL HAIL. IN ADDITION STRONG
SOUTHWEST WINDS AND DRIER AIR MOVING OVER THE NORTHWEST CORNER MAY
COMBINE TO PRODUCE CRITICAL FIRE WEATHER CONDITIONS THURSDAY
AFTERNOON. THEN A DRYING TREND WILL RESULT IN A DOWNTURN IN THE
CONVECTIVE ACTIVITY FRIDAY THROUGH SUNDAY. MOISTURE WILL AGAIN STREAM
INTO THE AREA FROM THE SOUTH ON MONDAY FOR AN INCREASED CHANCE OF
MAINLY LATE DAY SHOWERS AND THUNDERSTORMS THROUGH TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED TODAY OR TONIGHT.

In the hours before

Special weather statement, Aug 31, 2:35 PM MDT, 27 minutes before
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The office that day

Everything else NWS Grand Junction, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 31, 2:35 PM MDTSpecial Weather StatementGJTMesa40 min
Aug 31, 5:51 PM MDTSpecial Weather StatementGJTGrand39 min

Nearby

Red Flag Warnings in Colorado, 2011Red Flag Warnings in Utah, 2011Every red flag 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; radar from the NEXRAD Level II archive.