Alert archive / Nebraska / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 21, NWS North Platte, NE

May 3, 2003Arthur County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 3, 2003, 9:11 PM MDT for Arthur County, Nebraska. It was in force for 64 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: May 3, 2003, 9:11 PM MDT (03:11 UTC)
Expired: May 3, 2003, 10:15 PM MDT
In force: 64 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

County Arthur County, NE

The radar

The North Platte radar (KLNX), 105 km from the middle of the area, began a volume at 03:13 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.2 hours before the alert went out and 109 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: 125 J/kg
Mixed-layer CIN: -302 J/kg
Mixed-layer LCL: 872 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 254 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.

773 
WUUS53 KLBF 040311
SVRLBF
NEC005-040415-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
911 PM MDT SAT MAY 3 2003

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

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

* UNTIL 1015 PM MDT

* AT 908 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM 12 MILES WEST OF
  ARTHUR...MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ARTHUR AROUND 930 PM MDT

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 300 AM MDT SUNDAY
MORNING FOR WESTERN NEBRASKA.

LAT...LON 4173 10197 4142 10197 4139 10141 4173 10143

$$

KAR

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 6:32 PM MDT	Tornado Warning	LBF	Garden, Grant, Sheridan	58 min
May 3, 7:29 PM MDT	Tornado Warning	LBF	Grant	46 min
May 3, 7:35 PM MDT	Severe Thunderstorm Warning	LBF	Garden, Sheridan	55 min
May 3, 8:10 PM MDT	Tornado Warning	LBF	Grant	50 min
May 3, 8:31 PM MDT	Severe Thunderstorm Warning	LBF	Garden	59 min
May 3, 8:46 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Hooker	59 min
May 3, 9:32 PM MDT	Severe Thunderstorm Warning	LBF	Garden	43 min
May 3, 9:58 PM MDT	Severe Thunderstorm Warning	LBF	McPherson	62 min
May 3, 10:13 PM MDT	Severe Thunderstorm Warning	LBF	Arthur	32 min
May 3, 10:18 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln	57 min
May 4, 2:01 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	59 min
May 4, 3:59 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	46 min
May 4, 4:41 PM MDT	Tornado Warning	LBF	Cherry	34 min
May 4, 5:19 PM MDT	Severe Thunderstorm Warning	LBF	Brown	56 min
May 4, 5:21 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	24 min
May 4, 5:34 PM MDT	Severe Thunderstorm Warning	LBF	Thomas	41 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.