Alert archive / Nebraska / Red Flag Warnings in 2012

Red Flag Warning 53, NWS North Platte, NE

November 24, 20127 counties in Nebraska

NWS North Platte, NE issued this red flag warning at Nov 24, 2012, 2:57 AM MST for 7 counties in Nebraska. It took effect at Nov 24, 2012, 9:00 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
Nov 24, 2012, 2:57 AM MST (09:57 UTC)
In effect from
Nov 24, 2012, 9:00 AM MST
Expired
Nov 24, 2012, 4:00 PM MST
In force
7 hr
Issued by
NWS North Platte, NE

Counties Arthur County, NE, Cherry County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Keith County, NE, Sheridan County, NE

The radar

The North Platte radar (KLNX), 111 km from the middle of the area, began a volume at 09:55 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 10.0 hours before the alert went out and 130 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, N. Platte/Lee Bi, NE at 00:00Z on 2012-11-24Temperature 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, N. Platte/Lee Bi, NE at 00:00Z on 2012-11-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 256 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
2208 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
256 m²/s²
0-3 km storm-relative helicity
343 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.

575 
WWUS83 KLBF 240957
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
357 AM CST SAT NOV 24 2012

...CRITICAL FIRE DANGERS IN THE EASTERN PANHANDLE TODAY...

.A PREFRONTAL TROUGH DEVELOPS SOUTH THROUGH THE NEBRASKA 
PANHANDLE THIS MORNING WITH MUCH DRIER AIR TO SPREAD EAST TODAY.
AS TEMPERATURES BEGIN TO RISE THE SURFACE DEWPOINTS THAT ARE IN
THE TEENS WILL CREATE RELATIVE HUMIDITY VALUES AT OR BELOW 20
PERCENT BEFORE NOONTIME IN THE WEST. SURFACE WINDS WILL KICK UP
ACROSS THE PANHANDLE WITH WINDS AT 15 TO 25 MPH AND GUST AROUND
30 MPH FOR CRITICAL FIRE DANGERS UNTIL LATE AFTERNOON.

NEZ204-241800-
/O.NEW.KLBF.FW.W.0053.121124T1600Z-121124T2300Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
257 AM MST SAT NOV 24 2012

...RED FLAG WARNING IN EFFECT FROM 9 AM THIS MORNING TO 4 PM MST
THIS AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY FOR ZONE 204...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED
FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN
EFFECT FROM 9 AM THIS MORNING TO 4 PM MST THIS AFTERNOON.

* AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 204 EASTERN 
  PANHANDLE/CRESCENT LAKE NWR.

* WINDS...WEST 15 TO 25 MPH WITH GUSTS AROUND 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 14 PERCENT.

* IMPACTS...GUSTY WINDS AND LOW RELATIVE HUMIDITIES WILL RESULT IN
  THE POTENTIAL FOR RAPID FIRE WEATHER GROWTH...ESPECIALLY ALONG
  AND SOUTH OF A LINE FROM ANTIOCH IN SHERIDAN COUNTY TO SARBEN IN
  KEITH COUNTY. 

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.

&&

$$

HTTP://WEATHER.GOV/LBF

KECK
2 follow-up statements
205 
WWUS83 KLBF 241834
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1234 PM CST SAT NOV 24 2012

...CRITICAL FIRE DANGER ACROSS THE EASTERN PANHANDLE THIS
AFTERNOON... 

.ABOVE NORMAL TEMPERATURES IN THE 60S...AND DRY CONDITIONS WILL
KEEP FIRE WEATHER CONDITIONS HEIGHTENED THROUGH THIS AFTERNOON.
FUELS REMAIN VERY DRY...AND WITH RELATIVE HUMIDITY DOWN TO 12
PERCENT COMBINED WITH WINDS GUSTING BETWEEN 20 MPH AND 30
MPH...CRITICAL FIRE DANGER WILL BE IN PLACE THROUGH LATER THIS
AFTERNOON. LOCATIONS WITH THE MOST CRITICAL CONDITIONS WILL BE
WEST OF A LINE FROM ANTIOCH TO OGALLALA.

NEZ204-242300-
/O.CON.KLBF.FW.W.0053.000000T0000Z-121124T2300Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
1134 AM MST SAT NOV 24 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 PM MST THIS
AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY FOR ZONE 204...

* AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 204 EASTERN
  PANHANDLE/CRESCENT LAKE NWR. PRIMARILY AREAS WEST OF A LINE FROM
  ANTIOCH TO OGALLALA.

* WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* RELATIVE HUMIDITY...AS LOW AS 13 PERCENT.

* IMPACTS...GUSTY WINDS AND LOW RELATIVE HUMIDITIES WILL RESULT IN
  THE POTENTIAL FOR RAPID FIRE WEATHER GROWTH.

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.

&&

$$

HTTP://WEATHER.GOV/LBF

BROOKS
633 
WWUS83 KLBF 242302
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
502 PM CST SAT NOV 24 2012

NEZ204-250015-
/O.EXP.KLBF.FW.W.0053.000000T0000Z-121124T2300Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
402 PM MST SAT NOV 24 2012

...RED FLAG WARNING WILL EXPIRE AT 4 PM MST THIS AFTERNOON FOR ZONE 204...

RELATIVE HUMIDITIES HAVE RISEN TO AROUND 20 PERCENT NEAR SUNSET
WITH LIGHT WEST TO NORTHWEST WINDS. THEREFORE THE RED FLAG WARNING WILL
BE ALLOWED TO EXPIRE.

$$

HTTP://WEATHER.GOV/LBF

Nearby

Red Flag Warnings in Nebraska, 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.