Alert archive / Nebraska / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 21, NWS Omaha, NE

June 28, 1993Douglas County, Sarpy County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jun 28, 1993, 1:17 AM CDT for Douglas County, Sarpy County, Nebraska. It was in force for 28 min.

The area

The counties it named.

The facts

Issued: Jun 28, 1993, 1:17 AM CDT (06:17 UTC)
Expired: Jun 28, 1993, 1:45 AM CDT
In force: 28 min
Issued by: NWS Omaha, NE
Area: Whole counties

Counties Douglas County, NE, Sarpy County, NE

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 6.3 hours before the alert went out and 24 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: 2127 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 1332 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 275 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 13.4

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KOMA 280618
SVROAX
NEC055-153-280645-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OMAHA NE
117 AM CDT MON JUN 28 1993
 
THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  145 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL NEBRASKA
 
   ...DOUGLAS COUNTY...SARPY COUNTY
 
AT 117 AM CDT RADAR SHOWED A SEVERE THUNDERSTORM JUST SOUTHWEST OF
DOWNTOWN OMAHA MOVING EAST AT 25 MPH. THIS IS A DANGEROUS STORM CAPABLE
OF PRODUCING LARGE HAIL AND DAMAGING WINDS. THE SOUTHERN PART OF OMAHA
IS MOST THREATEND BY THIS STORM.
 
 
PEOPLE IN THE WARNED AREA SHOULD GET INTO A REINFORCED SHELTER AND
PREPARE FOR DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND
DANGEROUS LIGHTNING.
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 27, 10:40 PM CDT, 2 hours 37 minutes before

NEZ004-009-280500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORFOLK NE
1040 PM CDT SUN JUN 27 1993

...A THUNDERSTORM HAS DEVELOPED IN NORTHEAST NEBRASKA...

AT 1035 PM CDT RADAR INDICATED A THUNDERSTORM ABOUT 15 MILES WEST OF
YANKTON ALONG THE MISSOURI RIVER NEAR LEWIS AND CLARK LAKE.  THIS
STORM COULD PRODUCE VERY HEAVY RAIN AND SMALL HAIL AS IT MOVES EAST AT
25 MPH.  LIGHTNING CAN ALSO BE DANGEROUS SO ANYONE OUT ON THE LAKE SHOULD
GET TO SHELTER AS SOON AS POSSIBLE.  OTHER THUNDERSTORMS MAY DEVELOP OR
MOVE INTO NORTH CENTRAL AND NORTHEAST NEBRASKA LATER TONIGHT.

TDK

Special weather statement, Jun 27, 11:15 PM CDT, 2 hours 2 minutes before

NEZ004-009-280500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORFOLK NE
1115 PM CDT SUN JUN 27 1993

...A STRONG THUNDERSTORM CONTINUES IN NORTHEAST NEBRASKA...

AT 1115 PM CDT RADAR INDICATED AN INTENSE THUNDERSTORM IN EXTREME
NORTHEAST KNOX COUNTY NORTH OF CROFTON...OR ABOUT 10 MILES SOUTHWEST
OF YANKTON.  THE STORM IS DRIFTING TO THE EAST AND COULD PRODUCE HAIL...
GUSTY WINDS AND VERY HEAVY RAIN.  PEOPLE IN THE PATH OF THIS STORM
SHOULD TAKE SHELTER IN A STURDY BUILDING UNTIL IT MOVES AWAY.

THE STORM IS HEADED TOWARD YANKTON AND THE NORTHWEST CORNER OF CEDAR
COUNTY.  BEFORE THEN IT WILL PASS OVER LEWIS AND CLARK LAKE.

TDK

Special weather statement, Jun 27, 11:17 PM CDT, 2 hours before

NEZ004-009-280500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORFOLK NE
1115 PM CDT SUN JUN 27 1993

...A STRONG THUNDERSTORM CONTINUES IN NORTHEAST NEBRASKA...

AT 1115 PM CDT RADAR INDICATED AN INTENSE THUNDERSTORM IN EXTREME
NORTHEAST KNOX COUNTY NORTH OF CROFTON...OR ABOUT 10 MILES SOUTHWEST
OF YANKTON.  THE STORM IS DRIFTING TO THE EAST AND COULD PRODUCE HAIL...
GUSTY WINDS AND VERY HEAVY RAIN.  PEOPLE IN THE PATH OF THIS STORM
SHOULD TAKE SHELTER IN A STURDY BUILDING UNTIL IT MOVES AWAY.

THE STORM IS HEADED TOWARD YANKTON AND THE NORTHWEST CORNER OF CEDAR
COUNTY.  BEFORE THEN IT WILL PASS OVER LEWIS AND CLARK LAKE.

TDK

Special weather statement, Jun 28, 12:40 AM CDT, 37 minutes before

NEZ010-015-020-IAZ-056-080-090-091-280645-

SPECIAL WEATHER STATEMENT CLEARING PART OF TORNADO WATCH 517
NATIONAL WEATHER SERVICE OMAHA NE
1240 AM CDT MON JUN 28 1993

THUNDERSTORMS DEVELOPED RAPIDLY OVER EAST CENTRAL NEBRASKA ACROSS
DOUGLAS...SARPY AND SAUNDERS COUNTY.  AT 1242 AM CDT MARBLE SIZE
WAS REPORTED AT PAPILLION NEBRASKA.

THE STORMS WERE MOVING EAST AT 25 MPH.

LISTEN FOR POSSIBLE WARNINGS AS SEVERE THUNDERSTORM WATCHES ARE
IN EFFFECT.

BYRD/KLISH

        ONEILL
ORD             SOUTH SIOUX CIT VALENTINE       WAYNE

IN NEBRASKA THIS WATCH INCLUDES THE FOLLOWING COUNTIES...

NEC031-281100-
...ZONE 2...
CHERRY

NEC015-017-089-103-149-281100-
...ZONE 3...
BOYD            BROWN           HOLT            KEYA PAHA
ROCK

NEC003-027-107-139-179-281100-
...ZONE 4...
ANTELOPE        CEDAR           KNOX            PIERCE
WAYNE

NEC009-115-281100-
...ZONE 7...
BLAINE          LOUP

NEC071-077-175-183-281100-
...ZONE 8...
GARFIELD        GREELEY         VALLEY          WHEELER

NEC011-037-039-119-141-167-281100-
...ZONE 9...
BOONE           COLFAX          CUMING          MADISON
PLATTE          STANTON

NEC021-053-055-153-177-281100-
...ZONE 10...
BURT            DODGE           DOUGLAS         SARPY
WASHINGTON

NEC155-281100-
...ZONE 15...
SAUNDERS

NEC051-281100-
...ZONE 94...
DIXON

NEC043-281100-
...ZONE 95...
DAKOTA

NEC173-281100-
...ZONE 96...
THURSTON

POLLACK

Special weather statement, Jun 28, 12:45 AM CDT, 32 minutes before

NEZ010-015-020-IAZ-056-080-090-091-280645-

SPECIAL WEATHER STATEMENT CLEARING PART OF TORNADO WATCH 517
NATIONAL WEATHER SERVICE OMAHA NE
1240 PM CDT MON JUN 28 1993

THUNDERSTORMS DEVELOPED RAPIDLY OVER EAST CENTRAL NEBRASKA ACROSS
DOUGLAS...SARPY AND SAUNDERS COUNTY.  AT 1242 AM CDT MARBLE SIZE
WAS REPORTED AT PAPILLION NEBRASKA.

THE STORMS WERE MOVING EAST AT 25 MPH.

LISTEN FOR POSSIBLE WARNINGS AS SEVERE THUNDERSTORM WATCHES ARE
IN EFFFECT.

BYRD/KLISH

Special weather statement, Jun 28, 12:46 AM CDT, 31 minutes before

NEZ010-015-020-IAZ-056-080-090-091-280645-

SPECIAL WEATHER STATEMENT CLEARING PART OF TORNADO WATCH 517
NATIONAL WEATHER SERVICE OMAHA NE
1240 AM CDT MON JUN 28 1993

THUNDERSTORMS DEVELOPED RAPIDLY OVER EAST CENTRAL NEBRASKA ACROSS
DOUGLAS...SARPY AND SAUNDERS COUNTY.  AT 1242 AM CDT MARBLE SIZE
WAS REPORTED AT PAPILLION NEBRASKA.

THE STORMS WERE MOVING EAST AT 25 MPH.

LISTEN FOR POSSIBLE WARNINGS AS SEVERE THUNDERSTORM WATCHES ARE
IN EFFFECT.

BYRD/KLISH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 12:36 AM CDT	Severe Thunderstorm Warning	OAX	Butler	54 min
Jun 28, 12:47 AM CDT	Severe Thunderstorm Warning	OAX	Douglas, Sarpy	28 min
Jun 28, 1:49 AM CDT	Flash Flood Warning	OAX	Butler	3 hr
Jun 28, 2:32 AM CDT	Flash Flood Warning	OAX	Cass, Sarpy	4 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 1993 Every severe thunderstorm warning 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.