Severe Thunderstorm Warning 8, NWS Des Moines, IA

Issued

May 18, 1987, 1:48 PM CDT (18:48 UTC)

Expired

May 18, 1987, 2:25 PM CDT

In force

37 min

Issued by

NWS Des Moines, IA

Area

Whole counties

Counties Clarke County, IA, Union County, IA

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

000 
TTAA00 KDSM 181848
SVRDSM
IAC175-039-181925-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
148 PM CDT MON MAY 18 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 225 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

SOUTH CENTRAL IOWA...
 EASTERN UNION AND WESTERN CLARKE

AT 140 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM OVER EASTERN
UNION COUNTY NEAR AFTON...A VILLAGE ABOUT 40 MILES SOUTHWEST OF
DES MOINES.  THE STORM WAS MOVING EAST AT 20 MILES AN HOUR.
THE STORM WILL BE ARRIVING AT THE EDGE OF WESTERN CLARKE COUNTY
AT 150 PM CDT.  VILLAGES AFFECTED BY THE STORM ARE AFTON...THAYER
AND MURRAY.  THE LAST TWO TOWNS ARE ABOUT 40 MILES SOUTHWEST OF
DES MOINES.

REMEMBER..A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WINDS IN EXCESS
OF 60 MPH..LARGE HAIL..DEADLY LIGHTNING..AND HEAVY RAINS THAT CAN
QUICKLY FLOOD LOW LYING AREAS.  PEOPLE IN THE PATH OF THIS STORM
SHOULD TAKE APPROPRIATE ACTION IMMEDIATELY.

THESE STORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE
OR NO ADVANCE WARNING..SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE
TO A PLACE OF SAFETY IF ONE IS SPOTTED.

IF THRE2ATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY.  IF SEVERE WEATHER CONDITIONS ARE OBSERVED..PLEASE ASK
THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR REPORT TO THE
NATIONAL WEATHER SERVICE.

BIKLE

In the hours before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WATERLOO IA
115 PM CDT MON MAY 18 1987

...AN AREA OF STRONG THUNDERSTORMS DEVELOP IN NORTHEAST AND
   CENTRAL IOWA...

AT 115 PM CDT THE NATIONAL WEATHER SERVICE RADAR AT WATERLOO WAS
SHOWING SEVERAL AREA OF STRONG THUNDERSTORMS...ONE AREA WAS NORTHEAST
OF WATERLOO IN A 30 MILE WIDE BAND FROM NEW HAMPTON TO NEAR OELWEIN.
THE OTHER AREA OF THUNDERSTORMS WAS LOCATED IN A 20 MILE WIDE BAND
FROM WINTERSET JUST SOUTHWEST OF DES MOINES TO IOWA FALLS 40 MILES
WEST OF WATERLOO.

THESE AREAS OF THUNDERSTORMS WERE DEVELOPING AND DYING RAPIDLY AND
WILL PRODUCE FREQUENT LIGHTNING STRIKES, STRONG GUSTY WINDS TO 40
MPH, BRIEF HEAVY RAINS AND EVEN SOME SMALL HAIL IS POSSIBLE AS
THEY MOVE NORTHEAST AND EAST AROUND 20 MPH.
ROBB

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

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.