Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 52, NWS North Platte, NE

June 7, 2002Boyd County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 7, 2002, 3:54 PM CDT for Boyd County, Nebraska. It was in force for 51 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: Jun 7, 2002, 3:54 PM CDT (20:54 UTC)
Expired: Jun 7, 2002, 4:45 PM CDT
In force: 51 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

County Boyd County, NE

The radar

The Sioux Falls radar (KFSD), 169 km from the middle of the area, began a volume at 20:54 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
Jun 7, 3:55 PM CDT	Hail 0.88	Lynch, NE

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

Aberdeen, SD (KABR), launched 12:00Z, 8.9 hours before the alert went out and 224 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: 2358 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: -129 m²/s²
0-3 km storm-relative helicity: 260 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLBF 072054
SVRLBF
NEC015-072145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
354 PM CDT FRI JUN 7 2002

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BOYD COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 445 PM CDT...

* AT 343 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM 5 MILES SOUTHEAST OF SPENCER...MOVING EAST 
  AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE...

  8 MILES SOUTH OF GROSS AROUND 400 PM CDT...
  OVER LYNCH AROUND 410 PM CDT...
  3 MILES NORTH OF MONOWI AROUND 430 PM 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 4298 9880 4283 9873 4279 9854 4278 9832
          4288 9833 4298 9852

$$
CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 4:47 PM CDT	Severe Thunderstorm Warning	LBF	Holt, Rock	58 min
Jun 7, 4:49 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln, McPherson	56 min
Jun 7, 4:54 PM CDT	Severe Thunderstorm Warning	LBF	Garfield, Loup	51 min
Jun 7, 5:01 PM CDT	Severe Thunderstorm Warning	LBF	Brown	29 min
Jun 7, 5:15 PM CDT	Severe Thunderstorm Warning	LBF	Custer	45 min
Jun 7, 5:25 PM CDT	Severe Thunderstorm Warning	LBF	Garfield, Holt	65 min
Jun 7, 6:00 PM CDT	Severe Thunderstorm Warning	LBF	Garfield	45 min
Jun 7, 6:12 PM CDT	Severe Thunderstorm Warning	LBF	Wheeler	63 min
Jun 7, 6:31 PM CDT	Severe Thunderstorm Warning	LBF	Holt	59 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.