Alert archive / North Dakota / Red Flag Warnings in 2008

Red Flag Warning 4, NWS Grand Forks, ND

May 4, 200812 counties in North Dakota

NWS Grand Forks, ND issued this red flag warning at May 4, 2008, 4:32 AM CDT for 12 counties in North Dakota. It took effect at May 4, 2008, 12:00 PM CDT. 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
May 4, 2008, 4:32 AM CDT (09:32 UTC)
In effect from
May 4, 2008, 12:00 PM CDT
Expired
May 4, 2008, 9:00 PM CDT
In force
9 hr
Issued by
NWS Grand Forks, ND

Counties Barnes County, ND, Benson County, ND, Cavalier County, ND, Eddy County, ND, Griggs County, ND, Nelson County, ND, Ramsey County, ND, Ransom County, ND, Sargent County, ND, Steele County, ND, Towner County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 77 km from the middle of the area, began a volume at 09:33 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

Bismarck Municip, ND (KBIS), launched 00:00Z, 9.5 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, Bismarck Municip, ND at 00:00Z on 2008-05-04Temperature 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 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 2008-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
3488 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
74 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 
WWUS83 KFGF 040932
RFWFGF

RED FLAG WARNING
NATIONAL WEATHER SERVICE GRAND FORKS ND
432 AM CDT SUN MAY 4 2008

...RED FLAG WARNING FROM NOON TO 9 PM CDT FOR STRONG WINDS AND LOW
HUMIDITY OVER PARTS OF EASTERN NORTH DAKOTA...

.GUSTY NORTHWEST WINDS OF 20 TO 30 MPH ALONG WITH HUMIDITY VALUES
AS LOW AS 15 TO 20 PERCENT WILL CREATE DANGEROUS FIRE WEATHER
CONDITIONS THIS AFTERNOON AND EARLY EVENING. EXPLOSIVE FIRE
GROWTH POTENTIAL WILL EXIST FROM THE DEVILS LAKE BASIN SOUTH 
THROUGH GRIGGS...STEELE...BARNES...RANSOM...AND SARGENT COUNTIES.

NDZ006-007-014-015-024-026-028-029-038-049-052-054-041745-
/O.NEW.KFGF.FW.W.0004.080504T1700Z-080505T0200Z/
TOWNER-CAVALIER-BENSON-RAMSEY-EDDY-NELSON-GRIGGS-STEELE-BARNES-
RANSOM-SARGENT-WESTERN WALSH COUNTY-
432 AM CDT SUN MAY 4 2008

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS
EVENING FOR STRONG WINDS AND LOW HUMIDITY OVER PARTS OF EASTERN 
NORTH DAKOTA...

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS
EVENING. THE RED FLAG WARNING IS IN EFFECT FOR THE DEVILS LAKE
BASIN SOUTH THROUGH GRIGGS...STEELE...BARNES...RANSOM...AND
SARGENT COUNTIES. 

NORTHWEST WINDS WILL INCREASE TO 20 MPH WITH GUSTS TO 30 MPH THIS
AFTERNOON AND EARLY EVENING. THE WINDS...COMBINED WITH RELATIVE
HUMIDITY VALUES AS LOW AS 15 TO 20 PERCENT AND VERY DRY 
VEGETATION...WILL RESULT IN DANGEROUS FIRE WEATHER CONDITIONS.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EXPECTED. A COMBINATION OF STRONG WINDS...LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH
POTENTIAL.

$$

SCHULTZ/JH
1 follow-up statement
000 
WWUS83 KFGF 050203
RFWFGF

RED FLAG WARNING
NATIONAL WEATHER SERVICE GRAND FORKS ND
903 PM CDT SUN MAY 4 2008

...RED FLAG WARNING HAS EXPIRED...

NDZ006-007-014-015-024-026-028-029-038-049-052-054-050315-
/O.EXP.KFGF.FW.W.0004.000000T0000Z-080505T0200Z/
TOWNER-CAVALIER-BENSON-RAMSEY-EDDY-NELSON-GRIGGS-STEELE-BARNES-
RANSOM-SARGENT-WESTERN WALSH COUNTY-
903 PM CDT SUN MAY 4 2008

...RED FLAG WARNING HAS EXPIRED...

THE RED FLAG WARNING IS NO LONGER IN EFFECT. 

WIND SPEEDS HAVE DECREASED AND RELATIVE HUMIDITY LEVELS HAVE ALSO
INCREASED...THEREFORE THE RED FLAG WARNING IS NO LONGER IN EFFECT.

$$

GODON

Nearby

Red Flag Warnings in North Dakota, 2008Every red flag 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.