Alert archive / Nebraska / Red Flag Warnings in 2012

Red Flag Warning 46, NWS North Platte, NE

September 16, 201226 counties in Nebraska

NWS North Platte, NE issued this red flag warning at Sep 16, 2012, 2:23 AM MDT for 26 counties in Nebraska. It took effect at Sep 16, 2012, 12:00 PM MDT. It was in force for 8 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 16, 2012, 2:23 AM MDT (08:23 UTC)
In effect from
Sep 16, 2012, 12:00 PM MDT
Expired
Sep 16, 2012, 8:00 PM MDT
In force
8 hr
Issued by
NWS North Platte, NE
All 26 counties

Arthur County, NE, Blaine County, NE, Boyd County, NE, Brown County, NE, Chase County, NE, Cherry County, NE, Custer County, NE, Deuel County, NE, Frontier County, NE, Garden County, NE, Garfield County, NE, Grant County, NE, Hayes County, NE, Holt County, NE, Hooker County, NE, Keith County, NE, Keya Paha County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Perkins County, NE, Rock County, NE, Sheridan County, NE, Thomas County, NE, Wheeler County, NE

The radar

The North Platte radar (KLNX), 25 km from the middle of the area, began a volume at 08:27 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, 8.4 hours before the alert went out and 67 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 2012-09-16Temperature 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 2012-09-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
3725 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
144 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.

015 
WWUS83 KLBF 160823
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
323 AM CDT SUN SEP 16 2012

...CRITICAL FIRE CONDITIONS LIKELY THIS AFTERNOON AND EARLY THIS
EVENING FOR FIRE ZONES 204...206...208...209 AND 219...

.A COLD FRONT WILL APPROACH WESTERN AND NORTH CENTRAL NEBRASKA
TODAY. EAST OF THE FRONT...VERY WARM TEMPERATURES AND STRONG
SOUTHERLY WINDS WILL DEVELOP. THE COMBINATION OF STRONG
WINDS...WARM TEMPERATURES...LOW RELATIVE HUMIDITY AND DRY
FUELS...WILL LEAD TO CRITICAL FIRE DANGER ACROSS MOST OF WESTERN
AND NORTH CENTRAL NEBRASKA. ANY FIRES WHICH MAY DEVELOP ARE
CAPABLE OF EXPLOSIVE GROWTH. 

NEZ206-208-209-219-162100-
/O.UPG.KLBF.FW.A.0028.120916T1800Z-120917T0200Z/
/O.NEW.KLBF.FW.W.0046.120916T1800Z-120917T0200Z/
SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/
SAMUEL R MCKELVIE NATIONAL FOREST-
NIOBRARA VALLEY/FORT NIOBRARA NWR-LOUP RIVERS BASIN-LOESS PLAINS-
323 AM CDT SUN SEP 16 2012 /223 AM MDT SUN SEP 16 2012/

...RED FLAG WARNING IN EFFECT FROM 1 PM CDT /NOON MDT/ THIS
AFTERNOON TO 9 PM CDT /8 PM MDT/ THIS EVENING FOR WIND AND LOW
RELATIVE HUMIDITY MOST OF WESTERN AND NORTH CENTRAL NEBRASKA...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED
FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN
EFFECT FROM 1 PM CDT /NOON MDT/ THIS AFTERNOON TO 9 PM CDT /8 PM
MDT/ THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

* AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 206 
  SAND HILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/ SAMUEL R 
  MCKELVIE NATIONAL FOREST...FIRE WEATHER ZONE 208 NIOBRARA 
  VALLEY/FORT NIOBRARA NWR...FIRE WEATHER ZONE 209 LOUP RIVERS 
  BASIN AND FIRE WEATHER ZONE 219 LOESS PLAINS.

* WINDS...SOUTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

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

* IMPACTS...WITH DRY FUELS...LOW RELATIVE HUMIDITY AND WINDY
  CONDITIONS...ANY FIRES WHICH DEVELOP...HAVE A HIGH POTENTIAL FOR
  EXPLOSIVE 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.

&&

$$

NEZ204-162100-
/O.NEW.KLBF.FW.W.0046.120916T1800Z-120917T0200Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
223 AM MDT SUN SEP 16 2012

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EASTERN NEBRASKA '
PANHANDLE AND WESTERN SAND HILLS...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED
FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN
EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING.

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

* WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 30 MPH...THROUGH
  3 PM MDT...NORTHWEST 15 TO 25 MPH...WITH GUSTS TO 35 MPH
  AFTER 3 PM MDT.

* RELATIVE HUMIDITY...AS LOW AS 12 PERCENT.

* IMPACTS...WITH DRY FUELS...LOW RELATIVE HUMIDITY AND WINDY
  CONDITIONS...ANY FIRES WHICH DEVELOP...HAVE A HIGH POTENTIAL FOR
  EXPLOSIVE 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
3 follow-up statements
680 
WWUS83 KLBF 161810
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
110 PM CDT SUN SEP 16 2012

...CRITICAL FIRE CONDITIONS LIKELY THIS AFTERNOON AND EARLY THIS
EVENING FOR WESTERN AND NORTH CENTRAL NEBRASKA...

.DRY AIR AND WARM TEMPERATURES WILL DROP RELATIVE HUMIDITY TO 15
PERCENT OR LESS FOR MUCH OF WESTERN AND NORTH CENTRAL NEBRASKA
THIS AFTERNOON. IN ADDITION...WINDS WILL BE BREEZY...WITH GUSTS TO
25 MPH AT TIMES. THESE WEATHER CONDITIONS...COMBINED WITH DRY
FUELS WILL LEAD TO CRITICAL FIRE DANGER ACROSS MOST OF WESTERN
AND NORTH CENTRAL NEBRASKA. ANY FIRES WHICH MAY DEVELOP ARE
CAPABLE OF EXPLOSIVE GROWTH.

NEZ210-170200-
/O.EXA.KLBF.FW.W.0046.000000T0000Z-120917T0200Z/
FRENCHMAN BASIN-
110 PM CDT SUN SEP 16 2012

...RED FLAG WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR 
LOW RELATIVE HUMIDITY AND GUSTY WINDS FOR THE FRENCHMAN BASIN...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED
FLAG WARNING FOR FRENCHMAN BASIN...WHICH IS IN EFFECT
UNTIL 9 PM CDT THIS EVENING.

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

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

* TIMING...THROUGH EARLY EVENING.

* RELATIVE HUMIDITY...AS LOW AS 8 PERCENT.

* TEMPERATURES...IN THE MID 80S.

* IMPACTS...WITH DRY FUELS...LOW RELATIVE HUMIDITY AND WINDY 
  CONDITIONS...ANY FIRES WHICH DEVELOP...HAVE A HIGH POTENTIAL 
  FOR EXPLOSIVE 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.

&&

$$

NEZ204-206-208-209-219-170200-
/O.CON.KLBF.FW.W.0046.000000T0000Z-120917T0200Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/
SAMUEL R MCKELVIE NATIONAL FOREST-
NIOBRARA VALLEY/FORT NIOBRARA NWR-LOUP RIVERS BASIN-LOESS PLAINS-
110 PM CDT SUN SEP 16 2012 /1210 PM MDT SUN SEP 16 2012/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT /8 PM MDT/
THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY MOST OF WESTERN
AND NORTH CENTRAL NEBRASKA...

* AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 204 EASTERN 
  PANHANDLE/CRESCENT LAKE NWR...FIRE WEATHER ZONE 206 
  SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/ SAMUEL R 
  MCKELVIE NATIONAL FOREST...FIRE WEATHER ZONE 208 NIOBRARA 
  VALLEY/FORT NIOBRARA NWR...FIRE WEATHER ZONE 209 LOUP RIVERS 
  BASIN AND FIRE WEATHER ZONE 219 LOESS PLAINS.

* WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 25 MPH.

* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.

* IMPACTS...WITH DRY FUELS...LOW RELATIVE HUMIDITY AND WINDY 
  CONDITIONS...ANY FIRES WHICH DEVELOP...HAVE A HIGH POTENTIAL 
  FOR EXPLOSIVE 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
358 
WWUS83 KLBF 162046
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
346 PM CDT SUN SEP 16 2012

...CRITICAL FIRE CONDITIONS INTO THIS EVENING FOR WESTERN AND
NORTH CENTRAL NEBRASKA...

.TEMPERATURES IN THE UPPER 70S AND 80S HAVE COMBINED WITH
DEWPOINTS IN THE 20S AND 30S TO DROP RELATIVE HUMIDITY TO THE 10
TO 20 PERCENT RANGE ACROSS MUCH OF WESTERN AND NORTH CENTRAL
NEBRASKA THIS AFTERNOON. THE LOW HUMIDITY...WINDS GUSTING TO 25
MPH...IN ADDITION TO THE DRY FUELS HAVE LED TO CRITICAL FIRE
WEATHER DANGER FOR MUCH OF THE AREA. THESE CONDITIONS WILL
CONTINUE INTO THE EVENING HOURS...BUT WILL IMPROVE INTO THE
OVERNIGHT HOURS AS TEMPERATURES COOL AND HUMIDITY INCREASES. IN
THE MEANTIME...ANY FIRES WHICH MAY DEVELOP ARE CAPABLE OF
EXPLOSIVE GROWTH. 

NEZ204-206-208>210-219-170200-
/O.CON.KLBF.FW.W.0046.000000T0000Z-120917T0200Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/
SAMUEL R MCKELVIE NATIONAL FOREST-
NIOBRARA VALLEY/FORT NIOBRARA NWR-LOUP RIVERS BASIN-
FRENCHMAN BASIN-LOESS PLAINS-
346 PM CDT SUN SEP 16 2012 /246 PM MDT SUN SEP 16 2012/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT /8 PM MDT/
THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY MOST OF WESTERN
AND NORTH CENTRAL NEBRASKA...

* AFFECTED AREA...IN NEBRASKA...FIRE WEATHER ZONE 204 EASTERN 
  PANHANDLE/CRESCENT LAKE NWR...FIRE WEATHER ZONE 206 
  SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/ SAMUEL R 
  MCKELVIE NATIONAL FOREST...FIRE WEATHER ZONE 208 NIOBRARA 
  VALLEY/FORT NIOBRARA NWR...FIRE WEATHER ZONE 209 LOUP RIVERS 
  BASIN...FIRE WEATHER ZONE 210 FRENCHMAN BASIN AND FIRE WEATHER 
  ZONE 219 LOESS PLAINS.

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

* RELATIVE HUMIDITY...AS LOW AS 9 PERCENT.

* IMPACTS...WITH DRY FUELS...LOW RELATIVE HUMIDITY AND WINDY
  CONDITIONS...ANY FIRES WHICH DEVELOP HAVE A HIGH POTENTIAL FOR
  EXPLOSIVE 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
702 
WWUS83 KLBF 170212
RFWLBF

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
912 PM CDT SUN SEP 16 2012


NEZ204-206-208>210-219-170315-
/O.EXP.KLBF.FW.W.0046.000000T0000Z-120917T0200Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/
SAMUEL R MCKELVIE NATIONAL FOREST-
NIOBRARA VALLEY/FORT NIOBRARA NWR-LOUP RIVERS BASIN-
FRENCHMAN BASIN-LOESS PLAINS-
912 PM CDT SUN SEP 16 2012 /812 PM MDT SUN SEP 16 2012/

...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE
HUMIDITY...

A COLD FRONT WILL CONTINUE TO ADVANCE THROUGH THE AREA. RELATIVE
HUMIDITY VALUES CONTINUE TO INCREASE AND CRITICAL FIRE DANGER HAS 
ENDED.

$$

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.