Alert archive / Nebraska / Red Flag Warnings in 2012

Red Flag Warning 3, NWS North Platte, NE

February 26, 20125 counties in Nebraska

NWS North Platte, NE issued this red flag warning at Feb 26, 2012, 3:52 AM MST for 5 counties in Nebraska. It was in force for 13 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: Feb 26, 2012, 3:52 AM MST (10:52 UTC)
Expired: Feb 26, 2012, 5:00 PM MST
In force: 13 hr
Issued by: NWS North Platte, NE

Counties Chase County, NE, Frontier County, NE, Hayes County, NE, Lincoln County, NE, Perkins County, NE

The radar

The North Platte radar (KLNX), 147 km from the middle of the area, began a volume at 10:56 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, 10.9 hours before the alert went out and 65 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2419 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 316 m²/s²
0-3 km storm-relative helicity: 563 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.

652 
WWUS83 KLBF 261052
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
452 AM CST SUN FEB 26 2012

...CRITICAL FIRE WEATHER CONDITIONS TODAY...

.THE COMBINATION OF STRONG WINDS...DRY FUELS...AND LOW VALUES OF
RELATIVE HUMIDITY WILL PROMOTE CRITICAL FIRE WEATHER CONDITIONS
TODAY.

NEZ210-219-270000-
/O.NEW.KLBF.FW.W.0003.120226T1052Z-120227T0000Z/
FRENCHMAN BASIN-LOESS PLAINS-
452 AM CST SUN FEB 26 2012

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 210 AND 
219...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED
FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN
EFFECT UNTIL 6 PM CST THIS EVENING. 

* AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 210 FRENCHMAN 
  BASIN AND FIRE WEATHER ZONE 219 LOESS PLAINS.

* WINDS...NORTHWEST 30 TO 40 MPH WITH GUSTS UP TO 55 MPH.

* RELATIVE HUMIDITY...AS LOW AS 15 PERCENT.

* IMPACTS...DRY VEGETATION WILL COMBINE WITH THESE WEATHER
  CONDITIONS TO PROMOTE EXTREME FIRE BEHAVIOR. OUTDOOR BURNING
  SHOULD BE AVOIDED...AND CAUTION SHOULD BE EXERCISED WHEN
  CONDUCTING ANY ACTIVITIES WHICH COULD RESULT IN A FIRE.

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

1 follow-up statement

344 
WWUS83 KLBF 262356
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
556 PM CST SUN FEB 26 2012

NEZ210-219-270100-
/O.EXP.KLBF.FW.W.0003.000000T0000Z-120227T0000Z/
FRENCHMAN BASIN-LOESS PLAINS-
556 PM CST SUN FEB 26 2012

...RED FLAG WARNING WILL EXPIRE AT 6 PM CST THIS EVENING FOR WIND
AND LOW RELATIVE HUMIDITY FOR IRE WEATHER ZONES 210 AND 219...

THE RED FLAG WARNING WILL EXPIRE AT 6 PM CST THIS EVENING. 

WINDS AND TEMPERATURES WILL DECREASE AS SUNSET APPROACHES AND
RELATIVE HUMIDITY WILL RISE SHARPLY REDUCING FIRE DANGER BELOW
CRITICAL LEVELS.

$$

HTTP://WEATHER.GOV/LBF

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 25, 7:15 PM MST	Wind Advisory	LBF	Arthur, Blaine, Boyd, Brown, Chase, Cherry and 20 more	19 hr
Feb 25, 9:40 PM MST	High Wind Warning	LBF	Arthur, Cherry, Deuel, Garden, Grant, Keith and 2 more	17 hr
Feb 26, 2:20 PM MST	Winter Storm Watch	LBF	Boyd, Brown, Cherry, Holt, Keya Paha, Rock and 1 more	36 hr

Nearby

Red Flag Warnings in Nebraska, 2012 Every 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.