Alert archive / Nebraska / Red Flag Warnings in 2007

Red Flag Warning 8, NWS North Platte, NE

November 7, 200718 counties in Nebraska

NWS North Platte, NE issued this red flag warning at Nov 7, 2007, 11:18 AM MST for 18 counties in Nebraska. It was in force for 6 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 7, 2007, 11:18 AM MST (18:18 UTC)
Expired: Nov 7, 2007, 5:00 PM MST
In force: 6 hr
Issued by: NWS North Platte, NE

Counties Arthur County, NE, Blaine County, NE, Brown County, NE, Chase County, NE, Cherry County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Hooker County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Perkins County, NE, Rock County, NE, Sheridan County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 62 km from the middle of the area, began a volume at 18:17 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 12:00Z, 6.3 hours before the alert went out and 72 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: 2114 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 171 m²/s²
0-3 km storm-relative helicity: 272 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 071818
RFWLBF

RED FLAG WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1218 PM CST WED NOV 7 2007

...RED FLAG WARNING THROUGH LATE AFTERNOON...

.ABUNDANT SUNSHINE WILL CONTINUE TO PUSH TEMPERATURES ABOVE NORMAL
AS RELATIVE HUMIDITIES DROP BELOW 15 PERCENT ACROSS PORTIONS OF
WESTERN NEBRASKA. IN ADDITION...STRONG WESTERLY WINDS OFF THE
HIGHER TERRAIN FURTHER WEST WILL ALSO MOVE INTO THE AREA. THE
AREA OF GREATEST FIRE WEATHER CONCERN IS WEST OF A LINE FROM
GORDON TO MULLEN...TO NORTH PLATTE AND HAYES CENTER.

NEZ204-206-210-080000-
/O.NEW.KLBF.FW.W.0008.071107T1818Z-071108T0000Z/
EASTERN PANHANDLE/CRESCENT LAKE NWR-
SANDHILLS/VALENTINE NWR/NEBRASKA NATIONAL FOREST/
SAMUEL R MCKELVIE NATIONAL FOREST-FRENCHMAN BASIN-
1218 PM CST WED NOV 7 2007 /1118 AM MST WED NOV 7 2007/

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST /5 PM MST/ THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT UNTIL 6 PM CST /5 PM MST/ THIS
AFTERNOON. 

RELATIVE HUMIDITIES BETWEEN 8 AND 15 PERCENT WILL BE LIKELY IN THE
RED FLAG AREA THIS AFTERNOON...ALONG WITH WEST WINDS OF 15 TO 25
MPH...WITH A FEW HIGHER GUSTS POSSIBLE. CRITICAL FIRE WEATHER
CONDITIONS SEEM LIKELY THROUGH THE LATE AFTERNOON HOURS. WITH MANY
OUTDOOR ACTIVITIES POSSIBLE DURING THIS TIME OF YEAR...INCLUDING
RECREATION AND AGRICULTURE...FIRE STARTS MAY BE POSSIBLE.

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.

$$

JWS

Nearby

Red Flag Warnings in Nebraska, 2007 Every 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.