Alert archive / Nebraska / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 13, NWS Omaha, NE

June 12, 1987Nemaha County, Richardson County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jun 12, 1987, 5:34 PM CDT for Nemaha County, Richardson County, Nebraska. It was in force for 56 min.

The area

The counties it named.

The facts

Issued: Jun 12, 1987, 5:34 PM CDT (22:34 UTC)
Expired: Jun 12, 1987, 6:30 PM CDT
In force: 56 min
Issued by: NWS Omaha, NE
Area: Whole counties

Counties Nemaha County, NE, Richardson 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

Omaha, NE (KOAX), launched 12:00Z, 10.6 hours before the alert went out and 128 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: 3585 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 54 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 KOMA 122234
SVROMA
NEC127-147-122330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OMAHA NE
534 PM CDT FRI JUN 12 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 630 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

SOUTHEAST NEBRASKA...NEMAHA AND RICHARDSON

AT 530 PM CDT A SEVERE THUNDERSTORM WAS LOCATED BEWTEEN AUBURN
AND BROWNVILLE NEBRASKA...25 MILES NORTH OF FALLS CITY.  AT
THE COOPER NUCLEAR POWER PLANT NEAR BROWNVILLE 60 MPH WINDS WERE
REPORTED AT 530 PM CDT ALONG WITH MARBLE SIZE HAIL.

PEOPLE IN THE WARNED AREA SHOULD GET INTO A REINFORCED SHELTER AND
PREPARE FOR DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND
DANGEROUS LIGHTNING.

SEVERE THUNDERSTORMS PRODUCE LARGE HAIL...GREATER THAN 3/4 INCH
IN DIAMETER...DAMAGING WINDS AND VERY HEAVY RAINS THAT CAN QUICKLY
FLOOD A LOW LYING AREA.

REPORTS OF SEVERE WEATHER OR DAMAGE CAN BE GIVEN TO A LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

BYRD

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 12, 2:16 PM CDT, 3 hours 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
215 PM CDT FRI JUN 12 1987

...STRONG THUNDERSTORMS DEVELOPING RAPIDLY IN EAST CENTRAL NEBRASKA...

AT 215 PM CDT STRONG THUNDERSTORMS WERE DEVELOPING IN EAST CENTRAL
NEBRASKA.  THE STRONGEST STORM WAS LOCATED JUST NORTHEAST OF FREMONT
IN SOUTWEST WASHINGTON COUNTY...25 MILES NORTHWEST OF OMAHA.  THIS
STORM WILL LIKELY PRODUCE STRONG WIND GUSTS TO 45 MPH...HEAVY RAIN
AND SOME SMALL HAIL AS IT MOVES SOUTHEAST ACROSS SOUTHERN WASHINGTON
AND NORTHERN DOUGLAS COUNTY NEBRASKA UNTIL 315 PM CDT.

THE STORMS WERE MOVING EAST TO SOUTHEAST AT 15 MPH.

LISTEN FOR LATER STATEMENTS BE PREPARED TO SEEK A PLACE OF SAFETY
SHOULD SEVERE WEATHER DEVELOP.

BYRD

Local storm report, Jun 12, 2:47 PM CDT, 2 hours 47 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE OMAHA NE
245 PM CDT FRI MAY 12 1987

240 PM CDT  AT FREMONT...PEA TO MARBLE SIZE HAIL...WINDS 35 TO 45
            MPH...REPORTED BY SHERIFF.
245 PM CDT  NICKERSON NE...SMALL HAIL...RAINFALL 1.11 IN LESS THAN
            1 HOUR.

BYRD

Local storm report, Jun 12, 2:48 PM CDT, 2 hours 46 minutes before

STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE OMAHA NE
245 PM CDT FRI JUN 12 1987

240 PM CDT  AT FREMONT...PEA TO MARBLE SIZE HAIL...WINDS 35 TO 45
            MPH...REPORTED BY SHERIFF.
245 PM CDT  NICKERSON NE...SMALL HAIL...RAINFALL 1.11 IN LESS THAN
            1 HOUR.

BYRD

Local storm report, Jun 12, 3:08 PM CDT, 2 hours 26 minutes before

STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE OMAHA NE
310 PM CDT FRI JUN 12 1987

307 PM CDT  AT FREMONT...GOLF TO SOFTBALL SIZE HAIL...
            REPORTED BY SHERIFF.

BYRD

Local storm report, Jun 12, 4:14 PM CDT, 1 hour 20 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE OMAHA NE
412 PM CDT FRI JUN 12 1987

410 PM CDT...AT OFFUTT AFB 3/4 INCH HAIL REPORTED BY BASE WEATHER
             PERSONNEL

410 PM CDT...AT MURRAY NEBRASKUA...CASS COUNTY...ESTIMATED 55 MPH
             WINDS REPORTED THROUGH LOCAL TV STATION COOPERATIVE
             OBSERVER.
BYRD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 2:55 PM CDT	Severe Thunderstorm Warning	OAX	Dodge, Douglas, Washington	65 min
Jun 12, 2:55 PM CDT	Severe Thunderstorm Warning	OAX	Saunders	65 min
Jun 12, 3:56 PM CDT	Severe Thunderstorm Warning	OAX	Douglas	64 min
Jun 12, 3:56 PM CDT	Severe Thunderstorm Warning	OAX	Cass	64 min
Jun 12, 4:56 PM CDT	Severe Thunderstorm Warning	OAX	Otoe	64 min
Jun 12, 5:12 PM CDT	Severe Thunderstorm Warning	OAX	Lancaster	23 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1987 Every severe thunderstorm warning in 1987

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.