Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 199, NWS North Platte, NE

August 24, 2002Keya Paha County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 24, 2002, 12:44 AM CDT for Keya Paha County, Nebraska. It was in force for 46 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Aug 24, 2002, 12:44 AM CDT (05:44 UTC)
Expired: Aug 24, 2002, 1:30 AM CDT
In force: 46 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

County Keya Paha County, NE

The radar

The North Platte radar (KLNX), 130 km from the middle of the area, began a volume at 05:47 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
Aug 24, 12:45 AM CDT	Thunderstorm Wind 55 E	Mills, NE	Severe tree damage occurred with the strong winds. Numerous large limbs were down. Some mature trees were broken off. Roads were blocked due to fallen limbs.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.7 hours before the alert went out and 211 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: 1117 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 2523 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

794 
WUUS53 KLBF 240544
SVRLBF
NEC103-240630-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1244 AM CDT SAT AUG 24 2002

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KEYA PAHA COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 130 AM CDT...

* AT 1242 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM 12 MILES NORTHWEST
  OF BURTON...OR ABOUT 14 MILES NORTH OF SPRINGVIEW...MOVING SOUTH AT
  15 MPH.

* THE SEVERE THUNDERSTORM WILL BE...

  8 MILES WEST OF BURTON AROUND 115 AM CDT...
  OVER SPRINGVIEW AROUND 130 AM CDT...

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER IN A SMALL
INTERIOR ROOM AWAY FROM WINDOWS. A BASEMENT OFFERS THE BEST
PROTECTION.

THIS THUNDERSTORM IS CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING
WINDS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4299 9927 4298 10018 4279 10007 4273 9964
          4281 9926

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 23, 8:07 PM CDT	Severe Thunderstorm Warning	LBF	Brown	53 min
Aug 23, 8:49 PM CDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	56 min
Aug 23, 10:08 PM CDT	Severe Thunderstorm Warning	LBF	Blaine	37 min
Aug 23, 10:58 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	62 min
Aug 24, 12:22 AM CDT	Severe Thunderstorm Warning	LBF	Brown, Rock	38 min
Aug 24, 1:06 AM CDT	Severe Thunderstorm Warning	LBF	Holt, Rock	54 min
Aug 24, 1:28 AM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt	62 min
Aug 24, 2:32 AM CDT	Severe Thunderstorm Warning	LBF	Holt	43 min
Aug 24, 3:01 PM CDT	Severe Thunderstorm Warning	LBF	Garden	59 min
Aug 24, 3:12 PM CDT	Tornado Warning	LBF	Deuel, Garden	33 min
Aug 24, 3:45 PM CDT	Tornado Warning	LBF	Deuel	30 min
Aug 24, 4:16 PM CDT	Tornado Warning	LBF	Deuel	14 min
Aug 24, 4:41 PM CDT	Tornado Warning	LBF	Perkins	49 min
Aug 24, 5:09 PM CDT	Severe Thunderstorm Warning	LBF	Deuel	51 min
Aug 24, 5:28 PM CDT	Tornado Warning	LBF	Chase	62 min
Aug 24, 6:20 PM CDT	Severe Thunderstorm Warning	LBF	Custer	55 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2002 Every severe thunderstorm warning in 2002

Sources

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