Alert archive / Nebraska / Red Flag Warnings in 2007

Red Flag Warning 5, NWS North Platte, NE

September 12, 20077 counties in Nebraska

NWS North Platte, NE issued this red flag warning at Sep 12, 2007, 3:44 AM MDT for 7 counties in Nebraska. It took effect at Sep 12, 2007, 11:00 AM 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
Sep 12, 2007, 3:44 AM MDT (09:44 UTC)
In effect from
Sep 12, 2007, 11:00 AM MDT
Expired
Sep 12, 2007, 6:00 PM MDT
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 09:42 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, 9.7 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 2007-09-12Temperature 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 2007-09-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
2826 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
116 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.

000 
WWUS83 KLBF 120944
RFWLBF

RED FLAG WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
444 AM CDT WED SEP 12 2007

NEZ204-121745-
/O.NEW.KLBF.FW.W.0005.070912T1700Z-070912T2300Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
344 AM MDT WED SEP 12 2007

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 PM MDT
THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 5 PM
MDT THIS AFTERNOON. 

WEST AND SOUTHWEST WINDS WILL INCREASE TO 15 MPH WITH FREQUENT
GUSTS TO 25 MPH THIS AFTERNOON. RELATIVE HUMIDITY WILL FALL BELOW 15
PERCENT.

WILDFIRES WILL BE VERY HARD TO CONTROL THIS AFTERNOON. PERHAPS HEIGHTENING
THE FIRE DANGER...A COLD FRONT WILL MOVE THROUGH LATE TONIGHT
AFTER MIDNIGHT. 

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.

$$

CDC
1 follow-up statement
000 
WWUS83 KLBF 121801
RFWLBF

RED FLAG WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
101 PM CDT WED SEP 12 2007

NEZ204-130000-
/O.EXT.KLBF.FW.W.0005.000000T0000Z-070913T0000Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
1201 PM MDT WED SEP 12 2007

...RED FLAG WARNING NOW IN EFFECT UNTIL 6 PM MDT THIS AFTERNOON...

THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 6 PM MDT THIS
AFTERNOON FOR PORTIONS OF WESTERN NEBRASKA.

WEST AND SOUTHWEST WINDS HAVE INCREASED TO 15 MPH WITH FREQUENT
GUSTS TO 25 MPH EXPECTED TO CONTINUE THIS AFTERNOON. RELATIVE
HUMIDITY HAS FALLEN OR IS EXPECTED TO FALL BELOW 15 PERCENT.

WILDFIRES WILL BE VERY HARD TO CONTROL THIS AFTERNOON. PERHAPS
HEIGHTENING THE FIRE DANGER...A COLD FRONT WILL MOVE THROUGH LATE
TONIGHT AFTER MIDNIGHT.

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.

$$

MASEK

Nearby

Red Flag Warnings in Nebraska, 2007Every red flag warning in 2007

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.