Alert archive / Nebraska / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 101, NWS North Platte, NE

June 21, 2003Cherry County, Grant County, Sheridan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 21, 2003, 4:50 PM MDT for Cherry County, Grant County, Sheridan County, Nebraska. It was in force for 55 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 21, 2003, 4:50 PM MDT (22:50 UTC)
Expired: Jun 21, 2003, 5:45 PM MDT
In force: 55 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

Counties Cherry County, NE, Grant County, NE, Sheridan County, NE

The radar

The North Platte radar (KLNX), 117 km from the middle of the area, began a volume at 22:51 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 21, 1:10 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.8 hours before the alert went out and 162 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: 84 J/kg
Mixed-layer CIN: -373 J/kg
Mixed-layer LCL: 1356 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 257 m²/s²
0-3 km storm-relative helicity: 236 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 212250
SVRLBF
NEC031-075-161-212345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
450 PM MDT SAT JUN 21 2003

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN SHERIDAN COUNTY IN THE PANHANDLE OF NEBRASKA
  NORTHWESTERN GRANT COUNTY IN WEST CENTRAL NEBRASKA
  SOUTHWESTERN CHERRY COUNTY IN NORTH CENTRAL NEBRASKA

* UNTIL 545 PM MDT

* AT 446 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM 3 MILES NORTHWEST
  OF BINGHAM...OR ABOUT 39 MILES NORTHWEST OF ARTHUR...MOVING
  NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  6 MILES NORTHWEST OF ASHBY AROUND 505 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM MDT
SATURDAY EVENING FOR WESTERN NEBRASKA.

LAT...LON 4202 10229 4201 10195 4230 10151 4249 10176

$$
SPRINGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 6:16 PM MDT	Severe Thunderstorm Warning	LBF	Deuel, Garden	44 min
Jun 20, 6:42 PM MDT	Severe Thunderstorm Warning	LBF	Chase	63 min
Jun 20, 6:57 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	63 min
Jun 20, 7:02 PM MDT	Severe Thunderstorm Warning	LBF	Garden	43 min
Jun 20, 7:12 PM MDT	Severe Thunderstorm Warning	LBF	Deuel	33 min
Jun 20, 7:17 PM MDT	Tornado Warning	LBF	Garden	43 min
Jun 20, 7:22 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	53 min
Jun 20, 7:32 PM MDT	Tornado Warning	LBF	Garden	28 min
Jun 20, 8:40 PM MDT	Severe Thunderstorm Warning	LBF	Chase	65 min
Jun 20, 9:13 PM MDT	Severe Thunderstorm Warning	LBF	Perkins	32 min
Jun 21, 5:44 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	61 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2003 Every severe thunderstorm warning in 2003

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.