Alert archive / North Dakota / Red Flag Warnings in 2007

Red Flag Warning 2, NWS Bismarck, ND

May 2, 200729 counties in North Dakota

NWS Bismarck, ND issued this red flag warning at May 2, 2007, 4:35 AM MDT for 29 counties in North Dakota. It took effect at May 2, 2007, 11:00 AM 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
May 2, 2007, 4:35 AM MDT (10:35 UTC)
In effect from
May 2, 2007, 11:00 AM MDT
Expired
May 2, 2007, 8:00 PM MDT
In force
9 hr
Issued by
NWS Bismarck, ND
All 29 counties

Adams County, ND, Billings County, ND, Bottineau County, ND, Bowman County, ND, Burke County, ND, Burleigh County, ND, Divide County, ND, Dunn County, ND, Emmons County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, Kidder County, ND, Logan County, ND, McHenry County, ND, McIntosh County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Renville County, ND, Sheridan County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Williams County, ND

The radar

The Bismarck radar (KBIS), 97 km from the middle of the area, began a volume at 10:35 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, 10.6 hours before the alert went out and 101 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 2007-05-02Temperature 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 2007-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 square meters per square second.193958Sfc1 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
2800 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
29 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 KBIS 021035
RFWBIS

RED FLAG WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
535 AM CDT WED MAY 2 2007

...RED FLAG WARNING FOR WEST AND MOST OF CENTRAL NORTH DAKOTA
THIS AFTERNOON AND EARLY EVENING...

.GUSTY SOUTHEAST WINDS OF 25 TO 40 MPH ARE EXPECTED THIS
AFTERNOON AND EVENING. AFTERNOON HIGH TEMPERATURES ARE EXPECTED TO
BE IN THE 70S WITH MINIMUM AFTERNOON RELATIVE HUMIDITIES AROUND 2O
TO 25 PERCENT. PERCENT GREEN VALUES OF 10 TO 20 PERCENT OVER
WESTERN AND CENTRAL NORTH DAKOTA...ALONG WITH THE DRY AND WINDY
CONDITIONS...WILL MEAN CRITICAL FIRE WEATHER CONDITIONS THIS
AFTERNOON THROUGH EARLY THIS EVENING.

FIRE CREWS SHOULD BE ALERTED OF THE EXPLOSIVE WILDFIRE POTENTIAL
OVER WESTERN AND CENTRAL NORTH DAKOTA TODAY.

NDZ001>004-009>012-017>022-031>036-040>047-050-021845-
/O.UPG.KBIS.FW.A.0002.070502T1500Z-070503T0200Z/
/O.NEW.KBIS.FW.W.0002.070502T1700Z-070503T0200Z/
DIVIDE-BURKE-RENVILLE-BOTTINEAU-WILLIAMS-MOUNTRAIL-WARD-MCHENRY-
MCKENZIE-DUNN-MERCER-OLIVER-MCLEAN-SHERIDAN-GOLDEN VALLEY-
BILLINGS-STARK-MORTON-BURLEIGH-KIDDER-SLOPE-HETTINGER-GRANT-
BOWMAN-ADAMS-SIOUX-EMMONS-LOGAN-MCINTOSH-
535 AM CDT WED MAY 2 2007 /435 AM MDT WED MAY 2 2007/

...RED FLAG WARNING IN EFFECT FROM NOON CDT /11 AM MDT/ TODAY TO
9 PM CDT /8 PM MDT/ THIS EVENING...

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON CDT /11 AM MDT/ TODAY TO
9 PM CDT /8 PM MDT/ THIS EVENING. THE FIRE WEATHER WATCH IS NO
LONGER IN EFFECT. 

AFTERNOON TEMPERATURES WILL BE IN THE 70S WITH RELATIVE
HUMIDITIES 20 TO 25 PERCENT. IN ADDITION...WINDS WILL BE SOUTHEAST
AT 25 TO 40 MPH WITH A FEW GUSTS AS HIGH AS 45 MPH.

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

$$

NH
3 follow-up statements
000 
WWUS83 KBIS 021634
RFWBIS

RED FLAG WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
1134 AM CDT WED MAY 2 2007

...RED FLAG WARNING FOR WEST AND MOST OF CENTRAL NORTH DAKOTA
THIS AFTERNOON AND EARLY EVENING...

.GUSTY SOUTHEAST WINDS OF 25 TO 40 MPH WILL CONTINUE THIS
AFTERNOON AND EVENING. HIGH TEMPERATURES ARE EXPECTED TO BE IN
THE 70S WITH MINIMUM RELATIVE HUMIDITIES AROUND 25 PERCENT.
PERCENT GREEN VALUES OF 10 TO 20 PERCENT...ALONG WITH THE DRY AND
WINDY CONDITIONS...WILL MEAN CRITICAL FIRE WEATHER CONDITIONS THIS
AFTERNOON THROUGH EARLY THIS EVENING.

FIRE CREWS SHOULD BE ALERTED OF THE EXPLOSIVE WILDFIRE POTENTIAL
OVER WESTERN AND CENTRAL NORTH DAKOTA THIS AFTERNOON AND EVENING.

NDZ001>004-009>012-017>022-031>036-040>047-050-030045-
/O.CON.KBIS.FW.W.0002.070502T1700Z-070503T0200Z/
DIVIDE-BURKE-RENVILLE-BOTTINEAU-WILLIAMS-MOUNTRAIL-WARD-MCHENRY-
MCKENZIE-DUNN-MERCER-OLIVER-MCLEAN-SHERIDAN-GOLDEN VALLEY-
BILLINGS-STARK-MORTON-BURLEIGH-KIDDER-SLOPE-HETTINGER-GRANT-
BOWMAN-ADAMS-SIOUX-EMMONS-LOGAN-MCINTOSH-
1134 AM CDT WED MAY 2 2007 /1034 AM MDT WED MAY 2 2007/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT /8 PM MDT/
THIS EVENING...

EXPECT HIGH TEMPERATURES IN THE 70S...WITH RELATIVE HUMIDITIES
AROUND 25 PERCENT. IN ADDITION...WINDS WILL BE SOUTHEAST AT 25 TO
40 MPH WITH A FEW GUSTS AROUND 45 MPH. CRITICAL FIRE WEATHER
CONDITIONS WILL CONTINUE THIS AFTERNOON THROUGH EARLY THIS
EVENING.

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

$$
000 
WWUS83 KBIS 022100
RFWBIS

RED FLAG WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
400 PM CDT WED MAY 2 2007

...RED FLAG WARNING FOR WEST AND MOST OF CENTRAL NORTH DAKOTA
THIS AFTERNOON AND EARLY EVENING...

.TEMPERATURES FROM THE MID 60S EAST TO MID 70S WEST...ALONG WITH
DEWPOINTS AS LOW AS THE LOWER 30S...ARE COMBINING TO PRODUCE MINIMUM
HUMIDITIES IN THE MID 20S THIS AFTERNOON. IN ADDITION...STRONG
SOUTHEAST WINDS OF 25 TO 40 MPH ARE ADDING TO THE WILDFIRE
POTENTIAL. THESE DANGEROUS FIRE WEATHER CONDITIONS WILL CONTINUE
THROUGH THE EARLY EVENING.

THE STRONG SOUTHEAST WINDS WILL BRING AN INCREASE IN HUMIDITY. BUT
WITH LITTLE RECOVERY TONIGHT...AND WINDS AS STRONG OR POSSIBLY STRONGER
ON THURSDAY...A RED FLAG WARNING WILL LIKELY BE ISSUED AGAIN TO
COVER THE EXPLOSIVE FIRE GROWTH POTENTIAL ON THURSDAY.

FIRE CREWS SHOULD BE INFORMED OF THE WILDFIRE POTENTIAL OVER
WESTERN AND CENTRAL NORTH DAKOTA THIS EVENING...AND AGAIN ON THUR DAY.

NDZ001>004-009>012-017>022-031>036-040>047-050-030200-
/O.CON.KBIS.FW.W.0002.000000T0000Z-070503T0200Z/
DIVIDE-BURKE-RENVILLE-BOTTINEAU-WILLIAMS-MOUNTRAIL-WARD-MCHENRY-
MCKENZIE-DUNN-MERCER-OLIVER-MCLEAN-SHERIDAN-GOLDEN VALLEY-
BILLINGS-STARK-MORTON-BURLEIGH-KIDDER-SLOPE-HETTINGER-GRANT-
BOWMAN-ADAMS-SIOUX-EMMONS-LOGAN-MCINTOSH-
400 PM CDT WED MAY 2 2007 /300 PM MDT WED MAY 2 2007/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT /8 PM MDT/
THIS EVENING...

LOW HUMIDITIES AND STRONG WINDS WILL PRODUCE CRITICAL FIRE WEATHER
CONDITIONS THIS EVENING...AND AGAIN ON THURSDAY.

A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM
TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$
TWH
000 
WWUS83 KBIS 030133
RFWBIS

RED FLAG WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
833 PM CDT WED MAY 2 2007

NDZ001>004-009>012-017>022-031>036-040>047-050-030245-
/O.EXP.KBIS.FW.W.0002.000000T0000Z-070503T0200Z/
DIVIDE-BURKE-RENVILLE-BOTTINEAU-WILLIAMS-MOUNTRAIL-WARD-MCHENRY-
MCKENZIE-DUNN-MERCER-OLIVER-MCLEAN-SHERIDAN-GOLDEN VALLEY-
BILLINGS-STARK-MORTON-BURLEIGH-KIDDER-SLOPE-HETTINGER-GRANT-
BOWMAN-ADAMS-SIOUX-EMMONS-LOGAN-MCINTOSH-
833 PM CDT WED MAY 2 2007 /733 PM MDT WED MAY 2 2007/

...RED FLAG WARNING WILL EXPIRE AT 9 PM CDT /8 PM MDT/ THIS
EVENING...

THE RED FLAG WARNING WILL EXPIRE AT 9 PM CDT /8 PM MDT/ THIS
EVENING. 

SOUTHEAST WINDS HAVE DIMINISHED THIS EVENING...AND RELATIVE
HUMIDITIES HAVE RISEN TO ABOVE 30 PERCENT. THEREFORE...THE RED
FLAG WARNING WILL BE ALLOWED TO EXPIRE AS SCHEDULED.

$$
JF

The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 2, 3:49 AM MDTWind AdvisoryBISAdams, Billings, Bowman, Burke, Burleigh, Divide and 14 more16 hr

Nearby

Red Flag Warnings in North Dakota, 2007Every red flag warning in 2007

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.