Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 79, NWS North Platte, NE

August 10, 1990Blaine County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 10, 1990, 7:35 PM CDT for Blaine County, Nebraska. It was in force for 55 min.

The area

The counties it named.

The facts

Issued: Aug 10, 1990, 7:35 PM CDT (00:35 UTC)
Expired: Aug 10, 1990, 8:30 PM CDT
In force: 55 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Blaine County, NE

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.6 hours before the alert went out and 101 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: 1520 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 2035 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 139 m²/s²
0-3 km storm-relative helicity: 227 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 16.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOFK 110035
SVROFK
NEC009-110130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE NORFOLK NE
735 PM CDT FRI AUG 10 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 830 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE NORTH CENTRAL PART OF NEBRASKA
      BLAINE

AT 730PM CDT RADAR INDICATED A SEVERE THUNDERSTORM IN THE NORTHWEST
CORNER OF BLAINE COUNTY NEAR PURDUM OR OR ABOUT 60 MILES SOUTH
SOUTHEAST OF VALENTINE  MOVING SOUTHEAST AT 30 MILES AN HOUR.

PEOPLE IN THE PATH OF THIS STORM SHOULD MOVE INSIDE A STRONG
BUILDING.  FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS.  HEAVY RAINS QUICKLY FLOOD
ROADWAYS...DO NOT DRIVE INTO WATER COVERED ROADWAYS.

 A SEVERE THUNDERSTORM FOR ALL OF NORTHCENTRAL NEBRASKA UNTIL 11
 PM CDT THIS FRIDAY EVENING.

 VA

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Aug 10, 5:39 PM CDT, 1 hour 56 minutes before

NEZ012-102330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
435 PM MDT FRI AUG 10 1990

...DEVELOPING THUNDERSTORMS IN SOUTHWEST NEBRASKA.

AT 430 PM CDT...AN INTENSE THUNDERSTORM HAD DEVELOPED OVER KEITH COUNTY
IN SOUTHWEST NEBRASKA. THE STORM WAS LOCATED ABOUT 5 MILES EAST OF
OGALLALA OR ABOUT 46 MILES WEST OF NORTH PLATTE NEBRASKA. THIS
THUNDERSTORM WAS MOVING EAST AT ABOUT 15 MPH. DANGEROUS LIGHTNING...
BRIEF HEAVY RAIN AND POSSIBLE SMALL HAIL MAY BE ASSOCIATED WITH THIS
STORM. PERSONS IN THE PATH OF THIS STORM SHOULD THE WEATHER SITUATION
CAREFULLY.

OTHER STRONG THUNDERSTORMS WERE DEVELOPING IN NORTHEAST LINCOLN COUNTY...
SOUTH LOGAN COUNTY...AND SOUTHWEST CUSTER COUNTY. THESE STORMS WERE
MOVING EAST AT 15 TO 20 MPH.

SMALLFIELD

Special weather statement, Aug 10, 7:02 PM CDT, 33 minutes before

NEZ006-007-012-110100

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
705 PM MDT FRI AUG 10 1990

...SEVERE THUNDERSTORM WATCH FOR SOUTHWEST AND WEST CENTRAL NEBRASKA
UNTI 11 PM CDT.

AT 655 PM CDT...INTENSE THUNDERSTORMS WERE IN LINCOLN...KEITH AND PERKINS
COUNTIES OF SOUTHWEST NEBRASKA. THEY WERE LOCATED 10 MILES NORTHEAST OF
NORTH PLATTE NE 5 MILES NORTH OF SUTHERLAND NE OR 20 MILES WEST OF
NORTH PLATTE NE AND 3 MILES WEST OF OGALLALA NE TO 5 MILES SOUTHEAST OF
BRULE NE OR OR ABROUT 45 TO 50 WEST TO SOUTHWEST OF NORTH PLATTE NE.
OGALLALA NE REPORTED HEAVY RAIN AND STRONG WINDS BUT NO DAMAGE.

OTHER STRONG THUNDERSTORMS WERE IN THE NORTHWEST CORNER OF THOMAS COUNTY
10 MILES NORTHWEST OF THEDFORD OR ABOUT 55 MILES NORTH OF NORTH PLATTE
NE.
THE STORMS WERE MOVING EAST SOUTHEAST AT 20 TP 30 MPH.
SMALLFIELD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 7:59 PM CDT	Severe Thunderstorm Warning	LBF	Logan, Thomas	61 min
Aug 10, 8:31 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Lincoln, Logan, McPherson	59 min
Aug 10, 8:48 PM CDT	Severe Thunderstorm Warning	LBF	Chase	57 min
Aug 10, 9:21 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	69 min
Aug 10, 10:38 PM CDT	Severe Thunderstorm Warning	LBF	Frontier, Lincoln	67 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1990 Every severe thunderstorm warning in 1990

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.