Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 66, NWS North Platte, NE

June 7, 2002McPherson County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 7, 2002, 8:27 PM CDT for McPherson County, Nebraska. It was in force for 63 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: Jun 7, 2002, 8:27 PM CDT (01:27 UTC)
Expired: Jun 7, 2002, 9:30 PM CDT
In force: 63 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

County McPherson County, NE

The radar

The North Platte radar (KLNX), 64 km from the middle of the area, began a volume at 01:31 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 7, 5:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.5 hours before the alert went out and 62 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: 942 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 3335 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 138 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 080127
SVRLBF
NEC117-080230-

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

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MCPHERSON COUNTY IN WEST CENTRAL NEBRASKA...

* UNTIL 930 PM CDT...

* AT 821 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM OVER SOUTH CENTRAL
  MCPHERSON COUNTY...OR ABOUT 21 MILES NORTH OF SUTHERLAND...MOVING
  NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE...

  OVER FARM AND RANGELANDS OF EAST CENTRAL MCPHERSON COUNTY 
  NEAR TRYON AT 730 PM MDT

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 4142 10135 4142 10074 4171 10074 4171 10135
$$
CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 7:32 PM CDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln, McPherson	58 min
Jun 7, 7:44 PM CDT	Tornado Warning	LBF	Keith	31 min
Jun 7, 7:52 PM CDT	Tornado Warning	LBF	Lincoln	23 min
Jun 7, 8:10 PM CDT	Severe Thunderstorm Warning	LBF	Custer	50 min
Jun 7, 8:14 PM CDT	Severe Thunderstorm Warning	LBF	Garden, Sheridan	46 min
Jun 7, 8:15 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	60 min
Jun 7, 8:37 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	53 min
Jun 7, 9:03 PM CDT	Severe Thunderstorm Warning	LBF	Holt	57 min
Jun 7, 9:55 PM CDT	Severe Thunderstorm Warning	LBF	Custer	65 min
Jun 7, 10:11 PM CDT	Severe Thunderstorm Warning	LBF	Blaine	49 min
Jun 8, 2:20 AM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt	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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.