Alert archive / Nebraska / Tornado Warnings in 1993

Tornado Warning 45, NWS Hastings, NE

August 29, 1993Sherman County, Nebraska

NWS Hastings, NE issued this tornado warning at Aug 29, 1993, 7:02 PM CDT for Sherman County, Nebraska. It was in force for 21 min.

The area

The counties it named.

The facts

Issued
Aug 29, 1993, 7:02 PM CDT (00:02 UTC)
Expired
Aug 29, 1993, 7:23 PM CDT
In force
21 min
Issued by
NWS Hastings, NE
Area
Whole counties

County Sherman County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.0 hours before the alert went out and 136 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 1993-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1607 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 1993-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.19395878Sfc1 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
1607 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
1314 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
35 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGRI 300002
TORGRI
NEC077-093-163-300045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE GRAND ISLAND NE
702 PM CDT SUN AUG 29 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 745 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE CENTRAL PART OF NEBRASKA
      SOUTHERN GREELEY...NORTHERN HOWARD...EXTREME NORTHEAST 
      SHERMAN

AT 659 PM CDT...RADAR INDICATED A POSSIBLE TORNADO 8 MILES EAST OF
LOUP CITY...OR 30 MILES NORTHWEST OF GRAND ISLAND.  THE TOWN OF
COATSFIELD IS IN THE PATH OF THIS STORM.  THE STORM
WAS MOVING NORTHEAST AT 35 MILES AN HOUR.

IF YOU ARE IN THE PATH OF THIS TORNADO TAKE SHELTER IN A BASEMENT
OR BELOW GROUND.  OTHERWISE GO TO A SMALL INTERIOR ROOM ON THE
LOWEST FLOOR.  ABANDON CARS AND MOBILE HOMES FOR A REINFORCED
BUILDING.

IF YOU ARE CAUGHT IN THE OPEN...TRY TO HIDE IN A DEPRESSION SUCH
AS A DITCH OR CULVERT.  COVER YOUR HEAD WITH YOUR HANDS.

 DAS

What forecasters said that day

The local office's own words before this tornado 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 29, 5:41 PM CDT, 1 hour 21 minutes before
NEZ008-013>015-017>019-290845-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE GRAND ISLAND NE
541 PM CDT SUN AUG 29 1993

...SEVERE THUNDERSTORM WATCH FOR SOUTH CENTRAL AND EASTERN NEBRASKA
   UNTIL MIDNIGHT...

...TORNADO WARNING FOR SHERMAN COUNTY UNTIL 700 PM CDT...

AT 532 PM CDT...A LINE FOR THUNDERSTORMS...SOME SEVERE...EXTENDED
FROM NORTHWEST KANSAS...ACROSS CENTRAL NEBRASKA INTO NORTHEAST
NEBRASKA.

THE LINE OF THUNDERSTORMS WAS 15 MILES WIDE...AND WAS FROM 25 MILES
EAST OF MCCOOK TO KEARNEY TO 30 MILES NORTHWEST OF GRAND ISLAND THEN
TO 20 MILES NORTH OF NORFOLK.

THE THUNDERSTORMS HAD FORMED WITHIN THE PAST HOUR AND WERE MOVING
TOWARDS THE NORTHEAST AT 30 MPH.

IF THREATEN WEATHER APPROACHES YOU...TAKE COVER IMMEDIATELY...IT
COULD SAVE YOUR LIFE.

WEST
Special weather statement, Aug 29, 6:41 PM CDT, 21 minutes before
NEZ008-013>015-017>019-300045-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTED ISSUE TIMES
NATIONAL WEATHER SERVICE GRAND ISLAND NE
641 PM CDT SUN AUG 29 1993

...SEVERE THUNDERSTORM WATCH FOR SOUTH CENTRAL AND EASTERN NEBRASKA
   UNTIL MIDNIGHT...

...TORNADO WARNING FOR SHERMAN COUNTY UNTIL 700 PM CDT...

AT 632 PM CDT...A LINE FOR THUNDERSTORMS...SOME SEVERE...EXTENDED
FROM NORTHWEST KANSAS...ACROSS CENTRAL NEBRASKA INTO NORTHEAST
NEBRASKA.

THE LINE OF THUNDERSTORMS WAS 15 MILES WIDE...AND WAS FROM 25 MILES
EAST OF MCCOOK TO KEARNEY TO 30 MILES NORTHWEST OF GRAND ISLAND THEN
TO 20 MILES NORTH OF NORFOLK.

THE THUNDERSTORMS HAD FORMED WITHIN THE PAST HOUR AND WERE MOVING
TOWARDS THE NORTHEAST AT 30 MPH.

IF THREATEN WEATHER APPROACHES YOU...TAKE COVER IMMEDIATELY...IT
COULD SAVE YOUR LIFE.

WEST
Special weather statement, Aug 29, 6:53 PM CDT, 9 minutes before
NEZ008-013>015-017>019-300045-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTED ISSUE TIMES
NATIONAL WEATHER SERVICE GRAND ISLAND NE
641 PM CDT SUN AUG 29 1993

...SEVERE THUNDERSTORM WATCH FOR SOUTH CENTRAL AND EASTERN NEBRASKA
   UNTIL MIDNIGHT...

...TORNADO WARNING FOR SHERMAN COUNTY UNTIL 700 PM CDT...

AT 632 PM CDT...A LINE FOR THUNDERSTORMS...SOME SEVERE...EXTENDED
FROM NORTHWEST KANSAS...ACROSS CENTRAL NEBRASKA INTO NORTHEAST
NEBRASKA.

THE LINE OF THUNDERSTORMS WAS 15 MILES WIDE...AND WAS FROM 25 MILES
EAST OF MCCOOK TO KEARNEY TO 30 MILES NORTHWEST OF GRAND ISLAND THEN
TO 20 MILES NORTH OF NORFOLK.

THE THUNDERSTORMS HAD FORMED WITHIN THE PAST HOUR AND WERE MOVING
TOWARDS THE NORTHEAST AT 30 MPH.

IF THREATEN WEATHER APPROACHES YOU...TAKE COVER IMMEDIATELY...IT
COULD SAVE YOUR LIFE.

WEST

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 7:02 PM CDTTornado WarningGIDGreeley, Howard43 min

Nearby

Tornado Warnings in Nebraska, 1993Every tornado warning in 1993Tornadoes in 1993

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.