Alert archive / North Dakota / Red Flag Warnings in 2012

Red Flag Warning 11, NWS Grand Forks, ND

September 19, 201215 counties in North Dakota

NWS Grand Forks, ND issued this red flag warning at Sep 19, 2012, 4:00 AM CDT for 15 counties in North Dakota. It took effect at Sep 19, 2012, 10:00 AM CDT. It was in force for 10 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
Sep 19, 2012, 4:00 AM CDT (09:00 UTC)
In effect from
Sep 19, 2012, 10:00 AM CDT
Expired
Sep 19, 2012, 8:00 PM CDT
In force
10 hr
Issued by
NWS Grand Forks, ND

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

The radar

The Fargo/Grand Forks radar (KMVX), 57 km from the middle of the area, began a volume at 08:57 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, 9.0 hours before the alert went out and 215 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 2012-09-19Temperature 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 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 2012-09-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 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
2815 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
156 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.

825 
WWUS83 KFGF 190900
RFWFGF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND FORKS ND
400 AM CDT WED SEP 19 2012

...CRITICAL FIRE WEATHER CONDITIONS EXPECTED TODAY...

.NORTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH...WITH GUSTS TO 45
MPH. THE STRONG WINDS...WHEN COMBINED WITH VERY DRY FUELS AND
RELATIVE HUMIDITY FALLING BELOW 30 PERCENT...WILL LEAD TO CRITICAL
FIRE WEATHER CONDITIONS LATE THIS MORNING THROUGH EARLY THIS EVENING.

MNZ001>004-007-029-030-040-NDZ008-016-027-191000-
/O.CAN.KFGF.FW.A.0009.120919T1900Z-120920T0100Z/
WEST POLK-NORMAN-CLAY-KITTSON-WEST MARSHALL-WILKIN-
WEST OTTER TAIL-GRANT-PEMBINA-EASTERN WALSH-GRAND FORKS-
400 AM CDT WED SEP 19 2012

...FIRE WEATHER WATCH IS CANCELLED FOR STRONG WINDS AND LOW 
RELATIVE HUMIDITY FOR FAR NORTHEAST NORTH DAKOTA AND FAR 
NORTHWEST AND WEST CENTRAL MINNESOTA...

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS CANCELLED THE
FIRE WEATHER WATCH.

DESPITE STRONG NORTHWEST WINDS BETWEEN 25 AND 35 MPH
TODAY...RELATIVE HUMIDITY AT OR ABOVE 30 PERCENT IS EXPECTED TO
LIMIT WIDESPREAD CRITICAL FIRE WEATHER CONDITIONS.

$$

NDZ006-007-014-015-024-026-028>030-038-039-049-052>054-192100-
/O.UPG.KFGF.FW.A.0009.120919T1900Z-120920T0100Z/
/O.NEW.KFGF.FW.W.0011.120919T1500Z-120920T0100Z/
TOWNER-CAVALIER-BENSON-RAMSEY-EDDY-NELSON-GRIGGS-STEELE-TRAILL-
BARNES-CASS-RANSOM-SARGENT-RICHLAND-WESTERN WALSH-
400 AM CDT WED SEP 19 2012

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM CDT
THIS EVENING FOR VERY DRY FUELS...STRONG WINDS AND LOW RELATIVE 
HUMIDITY FOR MUCH OF EASTERN NORTH DAKOTA...

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A RED FLAG
WARNING FOR VERY DRY FUELS...STRONG WINDS AND LOW RELATIVE 
HUMIDITY...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM CDT
THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

* AFFECTED AREA...IN NORTH DAKOTA...FIRE WEATHER ZONES 006... 
  007...014...015...024...026...028...029...030...038...039...
  049... 052...053 AND 054.

* WINDS...NORTHWEST 25 TO 35 MPH WITH GUSTS UP TO 45 MPH.

* TIMING...LATE THIS MORNING THROUGH EARLY EVENING

* RELATIVE HUMIDITY...AS LOW AS 20 TO 25 PERCENT.

* TEMPERATURES...IN THE LOWER TO MIDDLE 60S.

* IMPACTS...DANGEROUS FIRE GROWTH POTENTIAL. OUTDOOR BURNING IS 
  RESTRICTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

JAM
2 follow-up statements
154 
WWUS83 KFGF 192050
RFWFGF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND FORKS ND
350 PM CDT WED SEP 19 2012

...CRITICAL FIRE WEATHER CONDITIONS EXPECTED THROUGH THE EVENING...

.NORTHWEST WINDS BETWEEN 25 TO 35 MPH...WITH GUSTS TO 45 MPH WILL
CONTINUE THROUGH EARLY EVENING. THESE WINDS...COMBINED WITH VERY
DRY FUELS AND LOW RELATIVE HUMIDITIES WILL CONTINUE CRITICAL FIRE
WEATHER CONDITIONS DURING THIS TIME. 

NDZ006-007-014-015-024-026-028>030-038-039-049-052>054-200100-
/O.CON.KFGF.FW.W.0011.000000T0000Z-120920T0100Z/
TOWNER-CAVALIER-BENSON-RAMSEY-EDDY-NELSON-GRIGGS-STEELE-TRAILL-
BARNES-CASS-RANSOM-SARGENT-RICHLAND-WESTERN WALSH-
350 PM CDT WED SEP 19 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING
FOR VERY DRY FUELS...STRONG WINDS AND LOW RELATIVE HUMIDITY FOR
MUCH OF EASTERN NORTH DAKOTA...

* AFFECTED AREA...IN NORTH DAKOTA...FIRE WEATHER ZONES 006... 
  007...014...015...024...026...028...029...030...038...039...
  049... 052...053 AND 054.

* WINDS...NORTHWEST 20 TO 30 MPH WITH GUSTS UP TO 45 MPH.

* TIMING...THROUGH EARLY EVENING

* RELATIVE HUMIDITY...AS LOW AS 24 PERCENT.

* TEMPERATURES...60-65.

* IMPACTS...DANGEROUS FIRE GROWTH POTENTIAL. OUTDOOR BURNING IS 
  RESTRICTED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
WJB
553 
WWUS83 KFGF 200100
RFWFGF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND FORKS ND
800 PM CDT WED SEP 19 2012

...CONDITIONS WILL CONTINUE TO IMPROVE THIS EVENING...

.WINDS WILL CONTINUE TO QUICKLY SUBSIDE AROUND SUNSET...AND
RELATIVE HUMIDITIES WILL QUICKLY RECOVER. THEREFORE THE RED FLAG
WARNING WILL EXPIRE AT 8 PM THIS EVENING.

NDZ006-007-014-015-024-026-028>030-038-039-049-052>054-200200-
/O.EXP.KFGF.FW.W.0011.000000T0000Z-120920T0100Z/
TOWNER-CAVALIER-BENSON-RAMSEY-EDDY-NELSON-GRIGGS-STEELE-TRAILL-
BARNES-CASS-RANSOM-SARGENT-RICHLAND-WESTERN WALSH-
800 PM CDT WED SEP 19 2012

...RED FLAG WARNING WILL EXPIRE AT 8 PM CDT THIS EVENING FOR
VERY DRY FUELS...STRONG WINDS AND LOW RELATIVE HUMIDITY FOR
MUCH OF EASTERN NORTH DAKOTA...

WINDS WILL CONTINUE TO QUICKLY SUBSIDE AROUND SUNSET...AND
RELATIVE HUMIDITIES WILL RECOVER. THE CRITICAL FIRE WEATHER
CONDITIONS WILL IMPROVE THIS EVENING...AND THE RED FLAG WARNING
WILL EXPIRE AT 8 PM THIS EVENING.

$$

HOPKINS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 19, 3:49 AM CDTWind AdvisoryFGFBarnes, Benson, Cass, Cavalier, Eddy, Grand Forks and 11 more15 hr

Nearby

Red Flag Warnings in North Dakota, 2012Every red flag warning in 2012

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.