Alert archive / Nebraska / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 9, NWS North Platte, NE

April 18, 2000Keith County, Lincoln County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Apr 18, 2000, 11:05 PM MDT for Keith County, Lincoln County, Nebraska. It was in force for 55 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 18, 2000, 11:05 PM MDT (05:05 UTC)
Expired: Apr 19, 2000, 12:00 AM MDT
In force: 55 min
Issued by: NWS North Platte, NE
Area: Whole counties

Counties Keith County, NE, Lincoln County, NE

The radar

The North Platte radar (KLNX), 106 km from the middle of the area, began a volume at 04:51 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.

What was reported inside it

Time	Report	Where	Remark
Apr 18, 11:10 PM MDT	Thunderstorm Wind 54 M	Ogallala Arpt, NE
Apr 18, 11:53 PM MDT	Thunderstorm Wind 53 M	North Platte, 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 18, 10:30 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.1 hours before the alert went out and 51 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: 190 J/kg
Mixed-layer CIN: -459 J/kg
Mixed-layer LCL: 1554 m above ground
0-6 km bulk shear: 80 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 274 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 190507
SVRLBF
NEC101-111-190600-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1205 AM CDT WED APR 19 2000

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN LINCOLN COUNTY IN SOUTHWEST NEBRASKA
  EASTERN KEITH COUNTY IN SOUTHWEST NEBRASKA

* UNTIL 100 AM CDT(MIDNIGHT MDT)

* AT 1101 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM ALONG A LINE EXTENDING FROM 13 MILES NORTHEAST
  OF KEYSTONE TO 12 MILES NORTHEAST OF KEYSTONE TO 5 MILES SOUTH OF
  PAXTON...OR ALONG A LINE EXTENDING FROM 18 MILES SOUTHEAST OF
  ARTHUR TO 21 MILES NORTHEAST OF OGALLALA TO 20 MILES EAST OF
  OGALLALA...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORMS WILL BE...
  NEAR SARBEN AROUND 1115 PM MDT
  NEAR SUTHERLAND AROUND 1235 AM CDT
  NEAR HERSHEY AROUND 1245 AM CDT
  NEAR NORTH PLATTE AROUND 1255 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 WHICH MAY CAUSE 
SERIOUS INJURY AND SEVERE DAMAGE TO PROPERTY. MOVE TO A STURDY 
BUILDING AND STAY AWAY FROM WINDOWS. DAMAGING WIND IS ALSO LIKELY.

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

A SEVERE T4HUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT
WEDNESDAY MORNING(400 AM MDT WEDNESDAY MORNING) FOR WESTERN NEBRASKA.

SPRINGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 18, 9:14 PM MDT	Severe Thunderstorm Warning	LBF	Garden	61 min
Apr 18, 9:59 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Garden, Grant	61 min
Apr 18, 10:44 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Grant	61 min
Apr 18, 10:53 PM MDT	Severe Thunderstorm Warning	LBF	Hooker, McPherson	67 min
Apr 18, 11:39 PM MDT	Severe Thunderstorm Warning	LBF	Logan, Thomas	66 min
Apr 18, 11:39 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	66 min
Apr 18, 11:55 PM MDT	Severe Thunderstorm Warning	LBF	Hooker, Lincoln, McPherson	35 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2000 Every severe thunderstorm warning in 2000

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.