Severe Thunderstorm Warning 126, NWS Des Moines, IA

Issued

Jun 26, 2002, 1:44 PM CDT (18:44 UTC)

Expired

Jun 26, 2002, 2:30 PM CDT

In force

46 min

Issued by

NWS Des Moines, IA

Area

Counties, with a storm outline in the text

County Taylor County, IA

The Des Moines radar (KDMX), 133 km from the middle of the area, began a volume at 18:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

000 
WUUS53 KDMX 261844
SVRDSM
IAC173-261930-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
144 PM CDT WED JUN 26 2002

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TAYLOR COUNTY IN SOUTHWEST IOWA

* UNTIL 230 PM CDT

* AT 142 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE
  OF SEVERE THUNDERSTORMS FROM 7 MILES NORTHWEST OF GRAVITY TO
  LENOX...OR FROM 61 MILES SOUTHEAST OF COUNCIL BLUFFS TO 68 MILES
  SOUTHWEST OF DES MOINES...MOVING SOUTHEAST AT 25 MPH.

* SEVERE THUNDERSTORMS WILL BE...

  NEAR SHARPSBURG AROUND 150 PM...
  NEAR GRAVITY AROUND 155 PM...
  NEAR CONWAY AROUND 200 PM AND
  NEAR BEDFORD AROUND 210 PM.

HAIL UP TO THE SIZE OF NICKELS IS LIKELY IN THE WARNED AREA.

DAMAGING WINDS OF 60 TO 70 MILES AN HOUR ARE LIKELY IN THE WARNED
AREA.

MOVE TO AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS. IF YOU LIVE IN A
MOBILE HOME...SEEK SHELTER IN A STURDY BUILDING.

LAT...LON 4090 9492 4091 9448 4067 9448 4064 9484

31

NWS Des Moines, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 26, 2:13 AM CDT, 11 hours 31 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
213 AM CDT WED JUN 26 2002

MAIN FORECAST CONCERNS AGAIN THIS PACKAGE ARE TIMING OF FRONT
THROUGH CWA TODAY AND ASSOCIATED TSRA CHANCES/COVERAGE.

BOTH AVN/META ARE SIMILAR IN TIMING WITH FRONT THROUGH
18Z...BRINGING IT INTO CENTRAL IOWA.  META THEN SLOWER WITH MOVEMENT
THROUGH SOUTHERN IA THIS EVENING...ALTHOUGH IT DOES PUSH THE
AFTERNOON QPF MUCH FARTHER SOUTH THAN THE AVN.  META SEEMED TO HAVE
INITIALIZED A BIT BETTER ON THE PLACEMENT OF THE SHORTWAVE IN MN AND
THE POSITION OF THE COLD FRONT.

THUNDERSTORMS HAVE MOVED SOUTHWARD INTO FAR NORTHEAST
COUNTIES...WITH A LARGE AREA OF CONVECTION EXTENDING THROUGH
SOUTHEAST MN INTO WISCONSIN. WILL MONITOR FOR ADJUSTMENTS TO WORDING
TOWARDS ISSUANCE TIME. THE FOCUS SHIFTS FROM THE NORTHEAST COUNTIES
INTO THE CENTRAL AND SOUTHERN PARTS OF THE CWA THIS AFTERNOON AND
EVENING...AS THE FRONT SAGS SOUTH. WITH WEAK FRONT AND 925/850 WINDS
OF 20 KTS AT BEST...THUNDERSTORMS THAT DO DEVELOP SHOULD BE NEAR THE
FRONT AND HIGHEST INSTABILITY...AND NOT VERY EXTENSIVE IN AREAL
COVERAGE.  WILL GO WITH 30/40 POPS FOR MUCH OF CWA OTHER THAN
NORTHWEST COUNTIES...AS WELL AS 30 POPS IN THE SOUTH FOR TONIGHT.
HIGHEST SEVERE WEATHER POTENTIAL TODAY LOOKS TO BE IN THE FAR
SOUTH...WITH DAYTIME HEATING BOOSTING CAPES ABOVE 3000 J/KG AND
INTERACTING WITH THE BOUNDARY DURING THE AFTERNOON AND EVENING.

AS FOR TEMPS...ILL LEAN TOWARDS THE COOLER MAV TODAY...ESPECIALLY
IN THE NORTH...THEN A BLEND OF THE GUIDANCE THURSDAY AND FRIDAY.
FORECAST STILL LOOKS DRY AND WARM THURSDAY THROUGH WEDNESDAY...WITH
NO CHANGES PLANNED TO EXTENDED PORTION.

.DSM...NONE

KINNEY

Severe Thunderstorm Warnings in Iowa, 2002Every severe thunderstorm warning in 2002

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.