Alert archive / Nebraska / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 430, NWS North Platte, NE

August 12, 2008Cherry County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 12, 2008, 5:51 PM MDT for Cherry County, Nebraska. It was in force for 54 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: Aug 12, 2008, 5:51 PM MDT (23:51 UTC)
Expired: Aug 12, 2008, 6:45 PM MDT
In force: 54 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon

County Cherry County, NE

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 11.9 hours before the alert went out and 149 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: 15 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 1908 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 49 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 
WUUS53 KLBF 122351
SVRLBF
NEC031-130045-
/O.NEW.KLBF.SV.W.0430.080812T2351Z-080813T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
551 PM MDT TUE AUG 12 2008

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CHERRY COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 645 PM MDT

* AT 546 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 8
  MILES NORTH OF SHELL LAKE STATE WILDLIFE MANAGEMENT AREA...OR 18
  MILES NORTHEAST OF GORDON...AND MOVING SOUTHEAST AT 17 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  6 MILES NORTHEAST OF SHELL LAKE STATE WILDLIFE MANAGEMENT AREA BY
  605 PM MDT...
  MERRIMAN AND 8 MILES NORTHWEST OF HIGHWAY 61 CROSSING THE NIOBRARA
  RIVER BY 645 PM MDT...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS

LAT...LON 4299 10198 4300 10171 4290 10151 4269 10174
      4294 10209 4300 10208 4300 10199
TIME...MOT...LOC 2351Z 308DEG 15KT 4303 10203

$$

POWER

2 follow-up statements

000 
WWUS53 KLBF 130021
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
721 PM CDT TUE AUG 12 2008

NEC031-130045-
/O.CON.KLBF.SV.W.0430.000000T0000Z-080813T0045Z/
CHERRY NE-
620 PM MDT TUE AUG 12 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM MDT
FOR NORTHWESTERN CHERRY COUNTY...

AT 616 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS
LOCATED 7 MILES NORTHEAST OF SHELL LAKE STATE WILDLIFE MANAGEMENT
AREA...OR 18 MILES NORTHEAST OF GORDON...MOVING SOUTHEAST AT 17 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MERRIMAN AND 7 MILES NORTHWEST OF HIGHWAY 61 CROSSING THE NIOBRARA
  RIVER BY 645 PM MDT...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LAT...LON 4299 10198 4300 10171 4290 10151 4269 10174
      4294 10209 4300 10208 4300 10199
TIME...MOT...LOC 0020Z 308DEG 15KT 4296 10190

$$

POWER

000 
WWUS53 KLBF 130046
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
746 PM CDT TUE AUG 12 2008

NEC031-130056-
/O.EXP.KLBF.SV.W.0430.000000T0000Z-080813T0045Z/
CHERRY NE-
646 PM MDT TUE AUG 12 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CHERRY COUNTY HAS
EXPIRED...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED.

LAT...LON 4299 10198 4300 10171 4290 10151 4269 10174
      4294 10209 4300 10208 4300 10199
TIME...MOT...LOC 0021Z 308DEG 15KT 4296 10190

$$

POWER

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 11, 6:09 PM MDT	Tornado Warning	LBF	Brown	42 min
Aug 11, 6:15 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Hooker, Thomas	45 min
Aug 11, 6:17 PM MDT	Severe Thunderstorm Warning	LBF	Brown	43 min
Aug 11, 6:28 PM MDT	Severe Thunderstorm Warning	LBF	Hooker, Logan, McPherson, Thomas	32 min
Aug 11, 6:37 PM MDT	Severe Thunderstorm Warning	LBF	Blaine, Brown, Cherry	38 min
Aug 11, 7:00 PM MDT	Severe Thunderstorm Warning	LBF	Blaine, Hooker, Logan, McPherson, Thomas	45 min
Aug 11, 7:03 PM MDT	Severe Thunderstorm Warning	LBF	Blaine, Brown, Loup, Rock, Thomas	42 min
Aug 11, 7:14 PM MDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Loup	61 min
Aug 11, 7:17 PM MDT	Severe Thunderstorm Warning	LBF	Custer, Lincoln, Logan, McPherson	43 min
Aug 11, 7:51 PM MDT	Severe Thunderstorm Warning	LBF	Custer	54 min
Aug 11, 8:11 PM MDT	Severe Thunderstorm Warning	LBF	Custer	52 min
Aug 11, 8:38 PM MDT	Severe Thunderstorm Warning	LBF	Custer	37 min
Aug 11, 9:52 PM MDT	Severe Thunderstorm Warning	LBF	Frontier, Lincoln	53 min
Aug 11, 10:18 PM MDT	Severe Thunderstorm Warning	LBF	Frontier	42 min
Aug 11, 10:49 PM MDT	Severe Thunderstorm Warning	LBF	Frontier	26 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2008 Every severe thunderstorm warning in 2008

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.