Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 69, NWS North Platte, NE

June 30, 1990Logan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 30, 1990, 3:13 AM CDT for Logan County, Nebraska. It was in force for 37 min.

The area

The counties it named.

The facts

Issued
Jun 30, 1990, 3:13 AM CDT (08:13 UTC)
Expired
Jun 30, 1990, 3:50 AM CDT
In force
37 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Logan 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, 8.2 hours before the alert went out and 50 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 1990-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4170 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 1990-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
4170 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
1817 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.4
Supercell composite
11.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 300813
SVRLBF
NEC113-300900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE NORTH PLATTE NE
313 AM CDT SAT JUN 30 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 400 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE NORTH CENTRAL PART OF NEBRASKA
      EASTERN LOGAN

AT 310 AM CDT RADAR DETECTED A SEVERE THUNDERSTORM 10 MILES NORTH
OF STAPLETON WHICH IS 22 MILES NORTH NORTHEAST OF NORTH PLATTE.
THE THUNDERSTORM WAS MOVING EAST AT 20 MILES PER HOUR.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH...
LARGE HAIL GREATER THAN 3/4 INCH IN DIAMETER...DEADLY LIGHTNING
AND VERY HEAVY RAIN THAT CAN FLOOD A LOW LYING AREA QUICKLY.

 ABBAS 0810Z

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, Jun 30, 1:20 AM CDT, 1 hour 53 minutes before
NEZ006-300715-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1215 AM MDT SAT JUN 30 1990

AT 1210 AM MDT...INTENSE THUNDERSTORMS WERE MOVING ACROSS ARTHUR AND
GRANT COUNTIES OF NORTH CENTRAL NEBRASASKA. THE THUNDERSTORMS WERE
LOCATED FROM NEAR ARTHUR WHICH IS 52 MILES WEST NORTHWEST OF NORTH
PLATTE NEBRASKA TO 5 MILES NORTH OF HYANNIS WHICH IS 70 MILES NORTHWEST
OF NORTH PLATTE.

THESE THUNDERSTORMS WILL LIKELY PRODUCE STRONG WINDS..VERY HEAVY RAIN..
AND SMALL HAIL.

THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 25 MILES PER HOUR AND
WILL REACH ARTHUR IN APPROXIMATELY AN HOUR.

PLACES IN THE PATHES OF THE STORMS SHOULD BE ALERT TO DEVELOPING WEATHER
CONDITIONS.
ABBAS
Special weather statement, Jun 30, 1:23 AM CDT, 1 hour 50 minutes before
NEZ006-300715-

SPECIAL WEATHER STATEMENT...CORRECTED THIRD PARAGRAPH...
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1215 AM MDT SAT JUN 30 1990

AT 1210 AM MDT...INTENSE THUNDERSTORMS WERE MOVING ACROSS ARTHUR AND
GRANT COUNTIES OF NORTH CENTRAL NEBRASASKA. THE THUNDERSTORMS WERE
LOCATED FROM NEAR ARTHUR WHICH IS 52 MILES WEST NORTHWEST OF NORTH
PLATTE NEBRASKA TO 5 MILES NORTH OF HYANNIS WHICH IS 70 MILES NORTHWEST
OF NORTH PLATTE.

THESE THUNDERSTORMS WILL LIKELY PRODUCE STRONG WINDS..VERY HEAVY RAIN..
AND SMALL HAIL.

THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 25 MILES PER HOUR AND
WILL REACH MULLEN IN APPROXIMATELY AN HOUR.

PLACES IN THE PATHES OF THE STORMS SHOULD BE ALERT TO DEVELOPING WEATHER
CONDITIONS.
ABBAS
Special weather statement, Jun 30, 2:00 AM CDT, 1 hour 13 minutes before
NEZ012-300745-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
155 AM CDT SAT JUN 30 1990

AT 150 AM CDT...A THUNDERSTORM WITH HEAVY RAIN WAS LOCATED 5 MILES
SOUTHWEST OF HERSHEY WHICH IS 14 MILES WEST OF NORTH PLATTE.

THE THUNDERSTORM HAD DECREASED IN INTENSITY DURING THE LAST HALF HOUR
AND WAS MOVING NORTHEAST AT 25 MILES PER HOUR.

THE THUNDERSTORM WILL MOVE THROUGH NORTH PLATTE DURING THE NEXT HOUR.

ABBAS
Special weather statement, Jun 30, 2:17 AM CDT, 56 minutes before
NEZ006-300800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
215 AM CDT SAT JUN 30 1990

AT 210 AM CDT...A THUNDERSTORM WAS LOCATED IN SOUTHERN HOOKER
AND NORTHERN MCPHERSON COUNTIES OF NORTH CENTRAL NEBRASKA.
THE STRONGEST PORTION OF THE STORM WAS 10 MILES NORTHWEST OF TRYON
WHICH IS 28 MILES NORTH NORTHWEST OF NORTH PLATTE NEBRASKA.

THE THUNDERSTORM WILL LIKELY PRODUCE HEAVY RAIN AND GUSTY WINDS. IT
MAY ALSO PRODUCE SMALL HAIL.

THE THUNDERSTORM WAS MOVING EAST NORTHEAST AT  25 MILES PER HOUR.

ABBAS
Special weather statement, Jun 30, 2:53 AM CDT, 20 minutes before
NEZ006-300845-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
250 AM CDT SAT JUN 30 1990

AT 245 AM CDT...A LINE OF INTENSE THUNDERSTORMS WAS LOCATED FROM
10 MILES EAST OF TRYON WHICH IS 28 MILES NORTH NORTHWEST OF NORTH
PLATTE TO 10 MILES NORTHEAST OF NORTH PLATTE.

THE THUNDERSTORMS WILL LIKELY PRODUCE VERY HEAVY RAIN..DANGEROUS
LIGHTENING..GUSTY WINDS..AND SMALL HAIL.

THE THUNDESTORMS HAD INCREASED IN INTENSITY WITHIN THE LAST HALF
HOUR AND WERE MOVING EAST AT 20 MILES PER HOUR.

ABBAS
Special weather statement, Jun 30, 3:00 AM CDT, 13 minutes before
NEZ006-012-300845-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
250 AM CDT SAT JUN 30 1990

AT 245 AM CDT...A LINE OF INTENSE THUNDERSTORMS WAS LOCATED FROM
10 MILES EAST OF TRYON WHICH IS 28 MILES NORTH NORTHWEST OF NORTH
PLATTE TO 10 MILES NORTHEAST OF NORTH PLATTE.

THE THUNDERSTORMS WILL LIKELY PRODUCE VERY HEAVY RAIN..DANGEROUS
LIGHTENING..GUSTY WINDS..AND SMALL HAIL.

THE THUNDESTORMS HAD INCREASED IN INTENSITY WITHIN THE LAST HALF
HOUR AND WERE MOVING EAST AT 20 MILES PER HOUR.

ABBAS

Nearby

Severe Thunderstorm Warnings in Nebraska, 1990Every 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.