Alert archive / Nebraska / Tornado Warnings in 1991

Tornado Warning 2, NWS Hastings, NE

April 11, 1991Adams County, Nebraska

NWS Hastings, NE issued this tornado warning at Apr 11, 1991, 7:40 PM CDT for Adams County, Nebraska. It was in force for 50 min.

The area

The counties it named.

The facts

Issued: Apr 11, 1991, 7:40 PM CDT (00:40 UTC)
Expired: Apr 11, 1991, 8:30 PM CDT
In force: 50 min
Issued by: NWS Hastings, NE
Area: Whole counties

County Adams County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.7 hours before the alert went out and 189 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 935 m above ground
0-6 km bulk shear: 90 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 220 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 KGRI 120040
TORGRI
NEC001-120130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE GRAND ISLAND NE
740 PM CDT THU APR 11 1991

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

   IN THE SOUTH CENTRAL PART OF NEBRASKA
      SOUTHERN AND EASTERN ADAMS

AT 735 RADAR INDICATED A POSSIBLE TORNADO 8 MILES SOUTH OF
HOLSTEIN...20 MILES SOUTHWEST OF HASTINGS.  THIS TORNADO
WAS MOVING TO THE NORTHEAST AT 35 MPH.

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 HOMETS FOR A REINFORCED
BUILDING.

 BASEBALL SIZE HAIL WAS REPORTED 8 MILES SOUTH OF HOLSTEIN AT
 735 PM CDT.
 PEOPLE IN THE TOWNS OF AYR...ROSELAND...PAULINE AND HASTINGS
 SHOULD GO TO SHELTERS IMMEDIATELY.

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, Apr 11, 3:37 PM CDT, 4 hours 3 minutes before

NEZ008-013>015-017>019-112145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND ISLAND NE
335 PM CDT THU APR 11 1991

...TORNADO WATCH FOR SOUTHWEST AND SOUTHCENTRAL NEBRASKA TILL 10 PM
   CDT...

AT 335 PM CDT THUNDESTORMS WERE DEVELOPING RAPIDLY OVER SOUTHERN
NEBRASKA AND A FEW NEW ONES WERE IN THE WEST CENTRAL.

IN SOUTH CENTRAL NEBRASKA THE STORMS WERE IN A 50 MILE WIDE AREA FROM
THE KANSAS NEBRASKA BORDER SOUTH OF HASTINGS...NORTHWEST ACROSS INTER
STATE 80 BETWEEN KEARNEY AND LEXINGTON...TO 35 MILES NORTHEAST OF
LEXINGTON.  THUNDERSTORMS WITH HEAVY RAIN WERE JUST NORTH OF ELM CREEK
OR 20 MILES WEST OF KEARNEY...AND JUST SOUTH OF AXTELL OR ABOUT 25 MILES
SOUTH OF KEARNEY.

MOVEMENT WAS TO THE NORTH AT 35MPH.
DER

Special weather statement, Apr 11, 5:45 PM CDT, 1 hour 55 minutes before

NEZ008-013>015-017>019-112145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND ISLAND NE
440 PM CDT THU APR 11 1991

...TORNADO WATCH FOR SOUTHWEST AND SOUTHCENTRAL NEBRASKA TILL 10 PM
   CDT...

AT 435 PM CDT THUNDESTORMS WERE IN AN AREA 50 MILES WIDE FROM NORTH
CENTRAL KANSAS NEAR SMITH CENTER TO LOUP CITY...30 MILES NORTHWEST
OF GRAND ISLAND.

STRONG STORMS WITHIN THIS AREA CONTAIN HEAVY RAIN...DANGEROUS LIGHTNING
STRONG GUSTY WIND gAND A FEW LIKELY CONTAIN PEA TO MARBLE SIZE HAIL.
ONE STRONG THUNDERSTORM WAS NEAR THE KANSAS STATELINE...35 MILES SOUTH
SOUTHWEST OF HASTINGS.  ANOTHER WAS 5 MILES SOUTH OF KEARNEY.

MOVEMENT WAS TO THE NORTH AT 35 MPH.
BW

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 11, 7:50 PM CDT	Tornado Warning	GID	Clay, Fillmore	25 min
Apr 11, 8:11 PM CDT	Tornado Warning	GID	Franklin, Kearney, Webster	64 min
Apr 11, 8:11 PM CDT	Tornado Warning	GID	Nuckolls	64 min
Apr 11, 8:14 PM CDT	Severe Thunderstorm Warning	GID	Hall, Hamilton, Merrick	61 min
Apr 11, 8:31 PM CDT	Tornado Warning	GID	Nuckolls	54 min
Apr 11, 8:31 PM CDT	Tornado Warning	GID	Fillmore, York	59 min
Apr 11, 8:50 PM CDT	Severe Thunderstorm Warning	GID	Adams, Hall	55 min
Apr 11, 9:18 PM CDT	Severe Thunderstorm Warning	GID	Clay, Fillmore	57 min
Apr 11, 9:48 PM CDT	Severe Thunderstorm Warning	GID	Clay, Hamilton	57 min
Apr 11, 10:00 PM CDT	Tornado Warning	GID	Clay, Hamilton	30 min
Apr 11, 10:23 PM CDT	Severe Thunderstorm Warning	GID	Polk, York	67 min
Apr 11, 10:40 PM CDT	Tornado Warning	GID	Franklin, Webster	35 min
Apr 11, 11:18 PM CDT	Severe Thunderstorm Warning	GID	Polk, York	57 min
Apr 11, 11:56 PM CDT	Severe Thunderstorm Warning	GID	Adams, Clay, Hamilton	64 min
Apr 12, 12:50 AM CDT	Severe Thunderstorm Warning	GID	Hamilton, Merrick, Polk, York	55 min
Apr 12, 12:50 AM CDT	Severe Thunderstorm Warning	GID	Clay	55 min
Apr 12, 4:10 PM CDT	Severe Thunderstorm Warning	GID	Adams, Hall, Hamilton	65 min
Apr 12, 4:49 PM CDT	Severe Thunderstorm Warning	GID	Adams, Webster	56 min
Apr 12, 5:22 PM CDT	Tornado Warning	GID	Clay	38 min
Apr 12, 5:38 PM CDT	Tornado Warning	GID	Hamilton	37 min
Apr 12, 6:09 PM CDT	Tornado Warning	GID	Hamilton, Merrick	36 min
Apr 12, 6:18 PM CDT	Severe Thunderstorm Warning	GID	Adams, Clay, Hamilton	57 min

Nearby

Tornado Warnings in Nebraska, 1991 Every tornado warning in 1991 Tornadoes in 1991

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.