Alert archive / Nebraska / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 9, NWS North Platte, NE

March 28, 2007Cherry County, Grant County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Mar 28, 2007, 4:58 PM MDT for Cherry County, Grant County, Nebraska. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 28, 2007, 4:58 PM MDT (22:58 UTC)
Expired
Mar 28, 2007, 6:00 PM MDT
In force
62 min
Issued by
NWS North Platte, NE
Area
Counties, with a storm outline in the text

Counties Cherry County, NE, Grant County, NE

The radar

The North Platte radar (KLNX), 108 km from the middle of the area, began a volume at 23:00 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, 11.0 hours before the alert went out and 168 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 12:00Z on 2007-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 620 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2007-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 233 square meters per square second.1939587897Sfc1 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
620 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
858 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
233 m²/s²
0-3 km storm-relative helicity
284 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KLBF 282258
SVRLBF
NEC031-075-290000-
/O.NEW.KLBF.SV.W.0009.070328T2258Z-070329T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
458 PM MDT WED MAR 28 2007

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN CHERRY COUNTY IN NORTH CENTRAL NEBRASKA...
  NORTHERN GRANT COUNTY IN WEST CENTRAL NEBRASKA...

* UNTIL 600 PM MDT

* AT 455 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR HYANNIS...OR ABOUT 31 MILES NORTH OF
  ARTHUR...AND MOVING NORTH AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MOTHER LAKE BY 505 PM MDT...
  8 MILES EAST OF DIPPING VAT MEADOW BY 510 PM MDT...
  INTERSECTION OF HIGHWAY 61 AND SURVEY VALLEY ROAD BY 520 PM MDT...
  HIGHWAY 61 CROSSING THE SNAKE RIVER BY 540 PM MDT...
  INTERSECTION OF HIGHWAY 61 AND SHADBOLT ROAD BY 550 PM MDT...
  HIGHWAY 61 CROSSING THE NIOBRARA RIVER...8 MILES EAST OF
  INTERSECTION OF HIGHWAY 20 AND IRWIN ROAD AND 8 MILES SOUTHWEST OF
  MERRIMAN BY 600 PM MDT...

LAT...LON 4197 10202 4195 10148 4297 10133 4294 10202

$$

BUTTLER
1 follow-up statement
000 
WWUS53 KLBF 282317
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
615 PM CDT WED MAR 28 2007

NEC075-282325-
/O.CAN.KLBF.SV.W.0009.000000T0000Z-070329T0000Z/
GRANT NE-
515 PM MDT WED MAR 28 2007

...THE SEVERE THUNDERSTORM WARNING FOR GRANT COUNTY IS CANCELLED...

THE STORM RESPONSIBLE FOR THE WARNING HAS MOVED OUT OF THE COUNTY 
AND NO LONGER POSES A SEVERE THREAT.

IF SEVERE WEATHER WAS OBSERVED...CONTACT LOCAL LAW ENFORCEMENT AND 
HAVE THEM PASS THE REPORT TO THE NATIONAL WEATHER SERVICE IN NORTH 
PLATTE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 9 PM MDT FOR WESTERN CHERRY 
AND GRANT COUNTY.

LAT...LON 4213 10202 4213 10144 4297 10133 4294 10202

$$

NEC031-290000-
/O.CON.KLBF.SV.W.0009.000000T0000Z-070329T0000Z/
CHERRY NE-
515 PM MDT WED MAR 28 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM MDT
FOR WESTERN CHERRY COUNTY...

AT 510 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL.  THIS STORM WAS LOCATED NEAR HIGHWAY 61 MILE MARKER 170...OR
ABOUT 38 MILES WEST OF MULLEN...MOVING NORTH AT 50 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  INTERSECTION OF HIGHWAY 61 AND SURVEY VALLEY ROAD BY 525 PM MDT...
  HIGHWAY 61 MILE MARKER 190 BY 530 PM MDT...
  HIGHWAY 61 CROSSING THE SNAKE RIVER BY 540 PM MDT...
  INTERSECTION OF HIGHWAY 61 AND SHADBOLT ROAD BY 550 PM MDT...
  HIGHWAY 61 CROSSING THE NIOBRARA RIVER BY 600 PM MDT...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 4213 10202 4213 10144 4297 10133 4294 10202

$$

BUTTLER

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 2:21 AM MDTWind AdvisoryLBFArthur, Blaine, Brown, Chase, Cherry, Custer and 16 more9 hr
Mar 28, 2:12 PM MDTFlash Flood WatchLBFBlaine, Boyd, Brown, Custer, Frontier, Garfield and 8 more31 hr
Mar 28, 4:34 PM MDTSevere Thunderstorm WarningLBFChase, Perkins26 min
Mar 28, 4:59 PM MDTSevere Thunderstorm WarningLBFKeith, Perkins46 min
Mar 28, 5:02 PM MDTSevere Thunderstorm WarningLBFCherry, Sheridan58 min
Mar 28, 5:14 PM MDTSevere Thunderstorm WarningLBFDeuel, Garden46 min
Mar 28, 5:45 PM MDTSevere Thunderstorm WarningLBFCherry, Sheridan60 min
Mar 28, 5:46 PM MDTSevere Thunderstorm WarningLBFGarden44 min
Mar 28, 5:54 PM MDTSevere Thunderstorm WarningLBFDeuel, Garden51 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2007Every severe thunderstorm 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.