Alert archive / Nebraska / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 21, NWS Omaha, NE

May 20, 1988Dodge County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at May 20, 1988, 4:27 PM CDT for Dodge County, Nebraska. It was in force for 33 min.

The area

The counties it named.

The facts

Issued: May 20, 1988, 4:27 PM CDT (21:27 UTC)
Expired: May 20, 1988, 5:00 PM CDT
In force: 33 min
Issued by: NWS Omaha, NE
Area: Whole counties

County Dodge 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, 9.5 hours before the alert went out and 37 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: 3586 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 41 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 202127
SVROMA
NEC053-202200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE OMAHA NE
427 PM CDT FRI MAY 20 1988

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

   IN THE EAST CENTRAL PART OF NEBRASKA
      NORTHERN DODGE

AT 415 PM SEVERE THUNDERSTORMS CONTAINING LARGE HAIL WERE INDICATED
BY RADAR NEAR CROWELL AND ABOUT 5 MILES SOUTHWEST OF CROWELL...OR
ABOUT 50 MILES NORTHWEST OF OMAHA.  THE STORMS WERE MOVING NORTH
AROUND 20 MPH.

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

PERSONS DRIVING IN THE WARNED AREA SHOULD WATCH OUT FOR WATER
OVER ROADS...IN UNDERPASSES AND NEAR SMALL STREAMS.

POLLACK

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, May 20, 12:59 PM CDT, 3 hours 28 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN NE
1258PM CDT FRI MAY 20 1988

AT 1245PM CDT PEA SIZED HAIL WAS REPORTED 6 MILES NORTH OF LINCOLN
ALSO HEAVY RAIN ALSO PEA SIZED HAIL REPORTED I +MILE NORTH OF
DOWN TOWN LINCOLN.
BROWN

Special weather statement, May 20, 1:29 PM CDT, 2 hours 58 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN NE
127PM CDT FRI MAY 20 1988

AT 120 PM CDT PEA SIZED HAIL AND HEAVY RAIN WAS REPORTED AT ROCA WHICH
IS 16 MILES SOUTH SOUTHEAST OF LINCOLN.

AST 125 PM CDT RADAR SHOWED WIDE SPREAD THUNDERSTORMS OVER SOUTHEAST
NEBRASKA...MANY OF THESE THUNDERSTORMS HAVE BEEN PRODUCING BRIEF
HEAVY RAIN AND PEA SIZED HAIL AS THEY MOVE TO THE NORTH AT 25 MPH.
BROWN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 8:12 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Otoe	63 min
May 19, 8:12 PM CDT	Severe Thunderstorm Warning	OAX	Saunders	63 min
May 20, 1:50 PM CDT	Severe Thunderstorm Warning	OAX	Cass	40 min
May 20, 2:36 PM CDT	Severe Thunderstorm Warning	OAX	Sarpy	39 min
May 20, 2:46 PM CDT	Severe Thunderstorm Warning	OAX	Douglas	59 min
May 20, 4:18 PM CDT	Severe Thunderstorm Warning	OAX	Dodge	27 min
May 20, 6:13 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Sarpy	47 min
May 20, 6:24 PM CDT	Severe Thunderstorm Warning	OAX	Douglas	51 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1988 Every severe thunderstorm warning in 1988

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.