Alert archive / Iowa / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 82, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jul 28, 1992, 5:56 PM CDT for Wapello County, Iowa. It was in force for 44 min.
The area
The counties it named.
The facts
- Issued
- Jul 28, 1992, 5:56 PM CDT (22:56 UTC)
- Expired
- Jul 28, 1992, 6:40 PM CDT
- In force
- 44 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Wapello County, IA
The nearest sounding before it
Omaha, NE (KOVN), launched 12:00Z, 10.9 hours before the alert went out and 333 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1355 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- -168 m²/s²
- 0-3 km storm-relative helicity
- -126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDSM 282257 SVRDSM IAC179-282340- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DES MOINES IA 556 PM CDT TUE JUL 28 1992 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 640 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST IOWA ...WAPELLO COUNTY AT 555 PM...DES MOINES RADAR INDICATED A SEVERE THUNDERSTORM NEAR EDDYVILLE...OR 15 MILES NORTHWEST OF OTTUMWA. THE SEVERE THUNDERSTORM WAS MOVING SOUTHEAST AT 30 MILES AN HOUR. PEOPLE IN THE COMMUNITIES OF KIRKVILLE...CHILLICOTHE...HIGHLAND CENTER...OTTUMWA AND AGENCY WILL BE AFFECTED BY THIS STORM. THE STORM SHOULD BE IN THE OTTUMWA VICINITY BY 620 PM. LARGE HAIL AND DAMAGING WINDS OVER 60 MILES AN HOUR ARE PROBABLE. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS RIN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. MYERS
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, Jul 28, 3:53 PM CDT, 2 hours 3 minutes before
IAZALL-282145- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 350 PM CDT TUE JUL 28 1992 AT 330 PM CDT...SCATTERED VERY STRONG THUNDERSTORMS HAD DEVELOPED OVER SOUTHWEST IOWA...FROM NEAR COUNCIL BLUFFS TO NEAR RED OAK...35 MILES SOUTHEAST OF COUNCIL BLUFFS...TO NEAR ATLANTIC...40 MILES EAST OF COUNCIL BLUFFS. THESE STORMS WERE PRODUCING HEAVY DOWNPOURS AND COULD PRODUCE DEADLY LIGHTNING AND GUSTY WIND. ALSO...SCATTERED SHOWERS AND THUNDERSHOWERS WERE OCCURRING OVER WESTERN IOWA...MOSTLY WEST OF A CHEROKEE TO REDFIELD TO CORNING LINE. ISOLATED SHOWERS WERE ALSO OVER NORTHWEST AND EAST CENTRAL IOWA. THE STORMS AND SHOWERS WERE MOVING EAST AT 30 MILES AN HOUR. MILLER
Special weather statement, Jul 28, 4:39 PM CDT, 1 hour 17 minutes before
IAZALL-282245- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 440 PM CDT TUE JUL 28 1992 AT 425 PM CDT...SCATTERED VERY STRONG THUNDERSTORMS WERE OVER SOUTHWEST IOWA. THE STORMS WERE 60 TO 70 MILES SOUTHEAST OF COUNCIL BLUFFS... BETWEEN CLARINDA AND CRESTON. VERY HEAVY RAIN...PEA SIZE HAIL...AND WIND GUSTS FROM 40 TO 50 MILES AN HOUR HAVE BEEN REPORTED WITH THESE STRONG STORMS. THE STORMS WERE PART OF A LARGER AREA OF SHOWERS AND SCATTERED THUNDERSTORMS WHICH WAS OVER THE WESTERN THIRD OF IOWA. THE PRECIPITATION WAS WEST OF A LINE EXTENDING FROM 10 MILES SOUTHWEST OF MASON CITY...TO 35 MILES NORTHWEST OF DES MOINES...NEAR PERRY...TO 40 MILES WEST OF` LAMONI...NEAR BEDFORD. THE SHOWERS AND STORMS WERE MOVING SOUTHEAST AT 25 TO 30 MILES AN HOUR. FILLBACH
Special weather statement, Jul 28, 5:41 PM CDT, 15 minutes before
IAZALL-282345- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 540 PM CDT TUE JUL 28 1992 AT 525 PM CDT...SCATTERED STRONG THUNDERSTORMS HAD DEVELOPED OVER CENTRAL IOWA. THE STORMS WERE 40 MILES SOUTHEAST OF DES MOINES... JUST SOUTHEAST OF KNOXVILLE. VERY HEAVY RAIN...PEA SIZE HAIL...AND WIND GUSTS FROM 35 TO 45 MILES AN HOUR HAVE BEEN REPORTED WITH THESE STRONG STORMS. THE STORMS WERE PART OF A LARGER AREA OF SHOWERS AND SCATTERED THUNDERSTORMS WHICH WAS OVER SOUTH CENTRAL AND CENTRAL IOWA. THE PRECIPITATION WAS LOCATED IN AN AREA BOUNDED FROM 30 MILES NORTHWEST OF DES MOINES...NEAR PERRY TO 50 MILES EAST OF DES MOINES...NEAR MONTEZUMA TO LAMONI. THE SHOWERS AND STORMS WERE MOVING SOUTHEAST AT 25 TO 30 MILES AN HOUR. FILLBACH
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 4:09 AM CDT | Severe Thunderstorm Warning | DMX | Greene | 32 min |
| Jul 28, 4:09 AM CDT | Severe Thunderstorm Warning | DMX | Guthrie | 45 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1992Every severe thunderstorm warning in 1992
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.