Alert archive / Nebraska / Red Flag Warnings in 2011

Red Flag Warning 2, NWS North Platte, NE

March 22, 20115 counties in Nebraska

NWS North Platte, NE issued this red flag warning at Mar 22, 2011, 3:05 AM MDT for 5 counties in Nebraska. It took effect at Mar 22, 2011, 12:00 PM MDT. 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: Mar 22, 2011, 3:05 AM MDT (09:05 UTC)
In effect from: Mar 22, 2011, 12:00 PM MDT
Expired: Mar 22, 2011, 7:00 PM MDT
In force: 7 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 09:07 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, 9.1 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: 762 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 632 m²/s²
0-3 km storm-relative helicity: 773 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.

302 
WWUS83 KLBF 220905
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
405 AM CDT TUE MAR 22 2011


NEZ204-206-221015-
/O.CAN.KLBF.FW.A.0001.110322T1700Z-110323T0100Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/
SAMUEL R MCKELVIE NATIONAL FOREST-
405 AM CDT TUE MAR 22 2011 /305 AM MDT TUE MAR 22 2011/

...FIRE WEATHER WATCH IS CANCELLED FOR GUSTY WINDS AND LOW
HUMIDITY FOR FIRE WEATHER ZONES 204 AND 206...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS CANCELLED THE
FIRE WEATHER WATCH. 

RELATIVE HUMIDITY IS EXPECTED TO REMAIN AT OR ABOVE CRITICAL
THRESHOLDS OVER MOST OF THE EASTERN PANHANDLE AND THE NEBRASKA
SANDHILLS. 

$$

NEZ210-219-222115-
/O.UPG.KLBF.FW.A.0001.110322T1700Z-110323T0100Z/
/O.NEW.KLBF.FW.W.0002.110322T1800Z-110323T0100Z/
FRENCHMAN BASIN-LOESS PLAINS-
405 AM CDT TUE MAR 22 2011

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
CDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE
WEATHER ZONES 210 AND 219...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM CDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN
EFFECT. 

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

* WIND...WEST WINDS OF 20 TO 30 MPH...WITH FREQUENT GUSTS OVER 35
  MPH.

* HUMIDITY...RELATIVE HUMIDITY WILL BE AT OR BELOW 15 PERCENT
  EARLY AFTERNOON TO EARLY EVENING.

* IMPACTS...CONDITIONS WILL BE FAVORABLE FOR EXTREME FIRE
  BEHAVIOR. 

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.

&&

$$
SPRINGER

HTTP://WEATHER.GOV/NORTHPLATTE

1 follow-up statement

573 
WWUS83 KLBF 230104
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
804 PM CDT TUE MAR 22 2011

...CRITICAL FIRE CONDITIONS IMPROVING OVER SOUTHWESTERN NEBRASKA...

.TEMPERATURES ARE BEGINNING TO COOL ACROSS SOUTHWESTERN
NEBRASKA...ALLOWING RELATIVE HUMIDITY TO RECOVER TO 20 TO 30
PERCENT. WINDS HAVE SLOWLY DIMINISHED AS WELL. 

NEZ210-219-230215-
/O.EXP.KLBF.FW.W.0002.000000T0000Z-110323T0100Z/
FRENCHMAN BASIN-LOESS PLAINS-
804 PM CDT TUE MAR 22 2011

...RED FLAG WARNING HAS EXPIRED FOR GUSTY WINDS AND LOW HUMIDITY
FOR FIRE WEATHER ZONES 210 AND 219...

THE RED FLAG WARNING IS NO LONGER IN EFFECT. 

NORTHWESTERLY WINDS HAVE DIMINISHED AND RELATIVE HUMIDITY HAS
RECOVERED TO 20 TO 30 PERCENT OVER THE PAST HOUR. RELATIVE
HUMIDITY WILL CONTINUE TO INCREASE LATER THIS EVENING AND WINDS
WILL DIMINISH FURTHER OVERNIGHT. 

$$

CLB

Nearby

Red Flag Warnings in Nebraska, 2011 Every red flag warning in 2011

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.