Alert archive / Nebraska / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 155, NWS Cheyenne, WY

June 28, 1991Sheridan County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 28, 1991, 1:12 AM MDT for Sheridan County, Nebraska. It was in force for 33 min.

The area

The counties it named.

The facts

Issued: Jun 28, 1991, 1:12 AM MDT (07:12 UTC)
Expired: Jun 28, 1991, 1:45 AM MDT
In force: 33 min
Issued by: NWS Cheyenne, WY
Area: Whole counties

County Sheridan County, NE

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 7.2 hours before the alert went out and 301 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: 30 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 3617 m above ground
0-6 km bulk shear: 73 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 223 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 27, 7:12 PM MDT, 6 hours before

NEZ001-005-011-280200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
708 PM MDT THU JUN 27 1991

...STRONG THUNDERSTORM IN THE SOUTHERN NEBRASKA PANHANDLE...

AT 706 PM MDT...RADAR INDICATED A STRONG THUNDERSTORM 15 MILES WEST OF
KIMBALL NEBRASKA...OR 40 MILES SOUTHWEST OF SCOTTSBLUFF...IN KIMBALL
COUNTY.  THE STORM WAS MOVING TO THE NORTH AT 20 MILES PER HOUR.

HEAVY RAIN...GUSTY WIND...SMALL HAIL AND LIGHTNING ARE POSSIBLE W=ITH THE
THUNDERSTORM IN KIMBALL AND BANNER COUNTIES OF THE NEBRASKA PANHANDLE
UNTIL 815 PM MDT.                                        ...EMANUEL...

Special weather statement, Jun 27, 11:10 PM MDT, 2 hours 2 minutes before

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Local storm report, Jun 27, 11:27 PM MDT, 1 hour 45 minutes before

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Local storm report, Jun 28, 12:36 AM MDT, 36 minutes before

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Special weather statement, Jun 28, 12:56 AM MDT, 16 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 7:24 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Kimball	36 min
Jun 27, 8:01 PM MDT	Tornado Warning	CYS	Banner	29 min
Jun 27, 8:32 PM MDT	Tornado Warning	CYS	Banner	28 min
Jun 27, 8:57 PM MDT	Severe Thunderstorm Warning	CYS	Scotts Bluff	63 min
Jun 27, 9:47 PM MDT	Severe Thunderstorm Warning	CYS	Sioux	58 min
Jun 27, 10:06 PM MDT	Tornado Warning	CYS	Banner	39 min
Jun 27, 10:28 PM MDT	Tornado Warning	CYS	Scotts Bluff	32 min
Jun 27, 10:48 PM MDT	Severe Thunderstorm Warning	CYS	Sioux	57 min
Jun 27, 10:56 PM MDT	Severe Thunderstorm Warning	CYS	Scotts Bluff	34 min
Jun 27, 11:16 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte	29 min
Jun 27, 11:48 PM MDT	Severe Thunderstorm Warning	CYS	Box Butte	57 min
Jun 28, 12:49 AM MDT	Severe Thunderstorm Warning	CYS	Box Butte, Dawes	26 min
Jun 27, 7:32 PM MDT	Severe Thunderstorm Warning	CYS	Goshen, Laramie	28 min
Jun 27, 8:08 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	52 min
Jun 27, 8:15 PM MDT	Severe Thunderstorm Warning	CYS	Goshen	45 min
Jun 27, 9:01 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	44 min
Jun 27, 9:36 PM MDT	Severe Thunderstorm Warning	CYS	Goshen	54 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1991 Every severe thunderstorm warning 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.