Alert archive / Nebraska / Red Flag Warnings in 2006

Red Flag Warning 9, NWS North Platte, NE

July 31, 200626 counties in Nebraska

NWS North Platte, NE issued this red flag warning at Jul 31, 2006, 3:06 AM MDT for 26 counties in Nebraska. It took effect at Jul 31, 2006, 10:00 AM MDT. It was in force for 8 hr. 8 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 31, 2006, 3:06 AM MDT (09:06 UTC)
In effect from: Jul 31, 2006, 10:00 AM MDT
Expired: Jul 31, 2006, 6:00 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 09:03 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.

What was reported inside it

Time	Report	Where	Remark
Jul 31, 4:30 PM MDT	TSTM WND GST 70	3 Se Maxwell, NE	ESTIMATED 70 MPH WINDS AND NICKLE SIZE HAIL.
Jul 31, 4:34 PM MDT	TSTM WND GST 0	4 Se North Platte, NE	ZERO VISIBILITY IN HEAVY RAIN AND STRONG WINDS ON STATE FARM ROAD.
Jul 31, 4:50 PM MDT	HAIL 1	3 Se Maxwell, NE
Jul 31, 5:00 PM MDT	HAIL 0.75	4 S Brewster, NE	SOME WIND...NOT SEVERE. 1.00 INCH OF RAIN.
Jul 31, 5:10 PM MDT	TSTM WND GST 65	1 S Maxwell, NE	ZERO VISIBILITY REPORTED
Jul 31, 5:19 PM MDT	TSTM WND GST 60	4 Ssw Maxwell, NE	SOME TREE LIMBS DOWN. VISIBILITY WAS NEAR ZERO WITH COMBINATION OF WIND AND RAIN.
Jul 31, 5:19 PM MDT	HAIL 0.75	4 Ssw Maxwell, NE	HAD BETWEEN 2 AND 3 INCHES OF RAIN
Jul 31, 6:05 PM MDT	HAIL 0.75	7 S Brady, NE	STRONG WINDS BUT NOT DESTRUCTIVE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 9.1 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-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: 1294 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 2646 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -39 m²/s²
0-3 km storm-relative helicity: 57 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 310906
RFWLBF

RED FLAG WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
406 AM CDT MON JUL 31 2006

NEZ204-206-208>210-010000-
/O.UPG.KLBF.FW.A.0007.060731T1700Z-060801T0300Z/
/O.NEW.KLBF.FW.W.0009.060731T1600Z-060801T0000Z/
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-
406 AM CDT MON JUL 31 2006 /306 AM MDT MON JUL 31 2006/

...RED FLAG WARNING IN EFFECT FROM 11 AM CDT /10 AM MDT/ THIS
MORNING TO 7 PM CDT /6 PM MDT/ THIS EVENING...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM CDT /10 AM MDT/ THIS
MORNING TO 7 PM CDT /6 PM MDT/ THIS EVENING. 

SEVERAL FACTORS HAVE LED TO A CONTINUATION OF THE RED FLAG WARNING
ACROSS WESTERN AND NORTH CENTRAL NEBRASKA TODAY. A COLD FRONT IS
EXPECTED TO MOVE OUT OF THE BLACK HILLS INTO PORTIONS OF THE
PANHANDLE...SANDHILLS AND NORTH CENTRAL NEBRASKA BY MID AFTERNOON.
A STRONG WIND SHIFT IS EXPECTED WITH THIS FRONT...AS WELL AS
ISOLATED DRY THUNDERSTORM FORMATION ALONG AND BEHIND THE FRONT
THIS AFTERNOON. AHEAD OF THE SURFACE BOUNDARY...EXTREME
HEAT...LOWER HUMIDITY AND GUSTY SOUTH WINDS WILL KEEP CRITICAL
FIRE CONDITIONS IN PLACE. SOME RELIEF WILL COME AFTER TODAY AS
TEMPERATURES COOL AND PRECIPITATION CHANCES INCREASE.

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.

$$

NEZ219-010000-
/O.NEW.KLBF.FW.W.0009.060731T1600Z-060801T0000Z/
LOESS PLAINS-
406 AM CDT MON JUL 31 2006

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM
CDT THIS EVENING. 

CRITICAL FIRE WEATHER CONDITIONS WILL BE IN PLACE THIS AFTERNOON
AS EXTREME TEMPERATURES...LOWER HUMIDITY AND GUSTY SOUTH WINDS
COMBINE. HIGHS ARE EXPECTED TO REACH TRIPLE DIGIT
READINGS...DROPPING HUMIDITY LEVELS INTO THE MID 20S. SOUTH WINDS
WILL REMAIN GUSTY AT 15 TO 25 MPH. SOME RELIEF WILL COME AFTER TODAY AS
TEMPERATURES COOL AND PRECIPITATION CHANCES INCREASE.

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.

$$

13

1 follow-up statement

000 
WWUS83 KLBF 312045
RFWLBF

RED FLAG WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
345 PM CDT MON JUL 31 2006

NEZ204-206-208>210-219-010000-
/O.CON.KLBF.FW.W.0009.000000T0000Z-060801T0000Z/
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-
345 PM CDT MON JUL 31 2006 /245 PM MDT MON JUL 31 2006/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT /6 PM MDT/
THIS EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT /6 PM MDT/
THIS EVENING. 

SEVERAL FACTORS HAVE LED TO A CONTINUATION OF THE RED FLAG
WARNING ACROSS WESTERN AND NORTH CENTRAL NEBRASKA THIS EVENING. A
COLD FRONT IS PROGRESSING ACROSS THE HIGH PLAINS. A STRONG WIND
SHIFT IS OCCURRING WITH THIS FRONT...AS WELL AS THE POSSIBILITY OF
ISOLATED DRY THUNDERSTORM FORMATION ALONG AND BEHIND THE FRONT
THIS EVENING. AHEAD OF THE SURFACE BOUNDARY...EXTREME HEAT...LOWER
HUMIDITY AND GUSTY SOUTH WINDS WILL KEEP CRITICAL FIRE CONDITIONS
IN PLACE. SOME RELIEF WILL COME AFTER TODAY AS TEMPERATURES COOL
AND PRECIPITATION CHANCES INCREASE.

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 3:55 PM MDT	Severe Thunderstorm Warning	LBF	Logan, McPherson	65 min
Jul 31, 4:07 PM MDT	Severe Thunderstorm Warning	LBF	Boyd, Holt	53 min
Jul 31, 4:23 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	67 min
Jul 31, 4:33 PM MDT	Severe Thunderstorm Warning	LBF	Blaine	45 min
Jul 31, 4:38 PM MDT	Severe Thunderstorm Warning	LBF	Custer	55 min
Jul 31, 5:27 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	63 min

Nearby

Red Flag Warnings in Nebraska, 2006 Every red flag warning in 2006

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.