Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 84, NWS Cheyenne, WY

July 26, 1990Garden County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 26, 1990, 4:32 PM MDT for Garden County, Nebraska. It was in force for 28 min.

The area

The counties it named.

The facts

Issued: Jul 26, 1990, 4:32 PM MDT (22:32 UTC)
Expired: Jul 26, 1990, 5:00 PM MDT
In force: 28 min
Issued by: NWS Cheyenne, WY
Area: Whole counties

County Garden 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 12:00Z, 10.5 hours before the alert went out and 155 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: 59 J/kg
Mixed-layer CIN: -302 J/kg
Mixed-layer LCL: 729 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 57 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 
TTAA00 KBFF 262232
SVRBFF
NEC069-262300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
432 PM MDT THU JUL 26 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 500 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE PANHANDLE OF NEBRASKA
      SOUTHEAST GARDEN

AT 428 PM MDT...RADAR INDICATED A SEVERE THUNDERSTORM 45 MILES
NORTHEAST OF SIDNEY NEBRASKA...BETWEEN OSHKOSH AND LEWELLEN. THE
STORM WAS MOVING EAST AT 15 MPH AND WILL BE OVER THE TOWN OF
LEWELLEN BY 440 PM MDT.

THIS WARNING CONTINUES THE PREVIOUS WARNING FOR SOUTHEAST GARDEN
COUNTY.

PREPARE FOR LARGE HAIL...DAMAGING WIND...HEAVY RAIN AND DANGEROUS
LIGHTNING BY TAKING COVER.  STAY AWAY FROM AREAS WHERE LOOSE ITEMS
CAN BECOME DANGEROUS FLYING DEBRIS.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO ADVANCE WARNING.

THE TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM MDT FOR THE ENTIRE
NEBRASKA PANHANDLE.

PEEK/PLISCHKE

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, Jul 26, 1:08 PM MDT, 3 hours 24 minutes before

NEZ001-005-011-262100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
108 PM MDT THU JUL 26 1990

...THUNDERSTORMS DEVELOPING IN CENTRAL AND SOUTHERN NEBRASKA PANHANDLE...

AT 106 PM MDT...THUNDERSTORMS WERE LOCATED FROM 28 MILES NORTH OF SIDNEY
NEBRASKA NEAR DALTON...TO 18 MILES WEST OF SIDNEY ABOUT 10 MILES SOUTH
OF POTTER AND INTERSTATE 80.  HEAVY RAIN AND PEA SIZED HAIL HAVE BEEN
REPORTED BY CIVIL DEFENSE SPOTTERS AROUND 8 MILES WEST OF SIDNEY FROM
THESE THUNDERSTORMS.  WINDS WERE ALSO REPORTED GUSTING 25 TO 30 MILES AN
HOUR.

BRIEF HEAVY RAIN...STRONG WIND AND SMALL HAIL ARE LIKELY WITH THE STORMS
AS THEY CROSS CHEYENNE...MORRILL...GARDEN...AND DEUEL COUNTIES OF THE
NEBRASKA PANHANDLE UNTIL 3PM MDT THIS AFTERNOON.
PFEIFFER

Special weather statement, Jul 26, 3:00 PM MDT, 1 hour 32 minutes before

NEZ001-005-011-210000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
300 PM MDT THU JUL 26 1990

...TORNADO WATCH IN EFFECT FOR NEBRASKA PANHANDLE UNTIL 9PM MDT...

AT 258 PM MDT...A LINE OF THUNDERSTORMS EXTENDED 35 MILES SOUTHEAST OF
ALLIANCE NEBRASKA...TO 15 MILES WEST OF SIDNEY...TO 40 MILES SOUTHWEST
OF SIDNEY NEAR STONEHAM COLORADO.  INDIVIDUAL STORMS WERE MOVING TO THE
NORTHEAST AROUND 20 MILES AN HOUR...WHILE THE LINE OF THUNDERSTORMS
WAS MOVING SLOWLY TO THE EAST BETWEEN 5 AND 10 MILES AN HOUR.

HEAVY RAIN...STRONG SHIFTING WINDS...AND SOME HAIL ARE POSSIBLE WITH
THESE STORMS ACROSS CHEYENNE...MORRILL...SOUTHERN SHERIDAN...GARDEN...
AND DEUEL COUNTIES OF THE NEBRASKA PANHANDLE UNTIL 430 PM MDT.

TORNADO WATCH 640 IS IN EFFECT FOR ALL OF THE NEBRASKA PANHANDLE UNTIL
9PM MDT THIS EVENING.
PFEIFFER

Special weather statement, Jul 26, 4:24 PM MDT, 8 minutes before

WYZ017-262300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
423 PM MDT THU JUL 26 1990

...SCATTERED THUNDERSTORMS DEVELOP ACROSS SOUTHEAST WYOMING...

AT 420 PM MDT WEATHER RADAR INDICATED SCATTERED THUNDERSTORMS ACROSS
LARAMIE COUNTY IN SOUTHEAST WYOMING. THE STRONGEST STORM WAS LOCATED
5 MILES WEST OF ALBIN...OR ABOUT 35 MILES NORTHEAST OF CHEYENNE.
STORMS WERE MOVING NORTHEAST AT 20 MILES AN HOUR.

SCATTERED THUNDERSTORMS WILL CONTINUE OVER SOUTHEAST WYOMING UNTIL
SUNSET. SOME STORMS WILL PRODUCE GUSTY WINDS...SMALL HAIL...AND BRIEF
HEAVY RAIN. REMEMBER THAT LIGHTNING IS VERY DANGEROUS. IF A
THUNDERSTORM APPROACHES YOUR AREA...SEEK SHELTER INSIDE A BUILDING.

MENTZER

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 26, 1:39 PM MDT	Tornado Warning	CYS	Cheyenne	36 min
Jul 26, 2:01 PM MDT	Tornado Warning	CYS	Garden	22 min
Jul 26, 3:55 PM MDT	Severe Thunderstorm Warning	CYS	Garden	35 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.