Alert archive / Iowa / Severe Thunderstorm Warnings in 1988
Severe Thunderstorm Warning 60, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Nov 15, 1988, 8:23 PM CST for Linn County, Iowa. It was in force for 25 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Nov 15, 1988, 8:23 PM CST (02:23 UTC)
- Expired
- Nov 15, 1988, 8:48 PM CST
- In force
- 25 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Linn County, IA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 15, 8:30 PM CST | Thunderstorm Wind 50 | Linn, IA |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Peoria Regional, IL (KPIA), launched 00:00Z, 2.4 hours before the alert went out and 229 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
- 144 J/kg
- Mixed-layer CIN
- -181 J/kg
- Mixed-layer LCL
- 643 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 311 m²/s²
- 0-3 km storm-relative helicity
- 373 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Nov 15, 3:52 PM CST, 4 hours 31 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 350 PM CST TUE NOV 15 1988 ...TORNADO WATCH FOR WESTERN AND CENTRAL IOWA UNTIL 8 PM CST... ...TORNADO WATCH FOR EASTERN IOWA UNTIL 11 PM CST... AN INTENSE THUNDERSTORM WAS INDICATED OVER SOUTH CENTRAL IOWA. AT 332 PM A THIS THUNDERSTORM WAS LOCATED 10 MILES NORTHEAST OF LAMONI. EXTREMELY HEAVY RAINFALL AND WINDS OF 30 TO 40 MILES AN HOUR CAN BE EXPECTED FROM THIS STORM AS IT MOVES NORTHEAST AT 45 MILES AN HOUR. A 20 MILE WIDE BAND OF STRONG THUNDERSTORMS WAS INDICATED FROM SOUTHWEST INTO NORTH CENTRAL IOWA. THIS BAND OF STORMS WAS LOCATED FROM JUST SOUTH OF CRESTON...60 MILES SOUTHWEST OF DES MOINES TO 35 MILES WEST OF DES MOINES NEAR GUTHRIE CENTER TO FORT DODGE. THESE STORMS WILL ALSO PRODUCE VERY HEAVY RAINFALL AND 30 TO 40 MILE AN HOUR WIND GUSTS AS THEY MOVE NORTHEAST AT 45 MILES AN HOUR. OTHERWISE NUMEROUS SHOWERS AND THUNDERSTORMS WERE OCCURRING OVER ALL BUT THE SOUTHEAST CORNER OF THE STATE. ALL OF THIS PRECIPITAION WAS MOVING NORTHEAST AT 45 MILES AN HOUR. DF/CAB
Special weather statement, Nov 15, 4:00 PM CST, 4 hours 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 400 PM CST TUE NOV 15 1988 THE FOLLOWING COUNTIES IN WEST CENTRAL AND SOUTHWEST IOWA HAVE BEEN CLEARED FROM TORNADO WATCH NUMBER 479. WEST CENTRAL... CRAWFORD CARROLL GREENE SHELBY AUDUBON GUTHRIE SOUTWEST... CASS ADAIR MONTGOMERY ADAMS FREMONT PAGE TAYLOR THE REMAINDER OF NORTH CENTRL...CENTRAL AND SOUTH CENTRAL IOWA REMAIN IN TORNADO WATCH NUMBER 479 UNTIL 8 PM. ALL OF EASTERN IOWA IS ALSO UNDER TORNADO WATCH NUMBER 482 UNTIL 11 PM. MYERS
Special weather statement, Nov 15, 4:16 PM CST, 4 hours 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 405 PM CST TUE NOV 15 1988 ...TORNADO WATCH FOR NORTHEAST IOWA UNTIL 11PM CDT... TORNADO WATCH FOR NORTH CENTRAL IOWA UNTIL 8PM CDT... AT 4 PM CDT NATIONAL WEATHER SERVICE RADAR AT WATERLOO WAS SHOWING A 100 MILE WIDE BAND OF SHOWERS AND THUNDERSTORMS FROM THE MISSOURI BORDER SOUTH OF DES MOINES TO THE MINNESOTA BORDER NORTH OF MASON CITY. ANOTHER AREA OF WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WAS LOCATED IN A 100 MILE WIDE BAND FROM MASON CITY TO DUBUQUE. THESE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 45 MILES AN HOUR AND COULD PRODUCE WINDS IN EXCESS OF 58 MILES AN HOUR...LARGE... HAIL AND POSSIBLE TORNADOES. PEOPLE SHOULD BE ALERT FOR SEVERE WEATHER UNTIL 8 OR 9 PM IN NORTH CENTRAL, IOWA AND UNTIL 11 PM IN NORTHEAST, IOWA. ROBB
Special weather statement, Nov 15, 4:30 PM CST, 3 hours 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
430 PM CST TUE NOV 15 1988
...SNOW ADVISORY TONIGHT FOR NORTHWEST IOWA...
A SNOW ADVISORY HAS BEEN ISSUED FOR NORTHWEST IOWA TONIGHT.
TWO TO FOUR INCHES OF SNOW IS EXPECTED TO ACCUMULATE BY MORNING
IN PARTS OF NORTHWEST IOWA INCLUDING THE FOLLOWING CITIES...SIOUX
CITY...STORM LAKE...SPENCER...ESTHERVILLE...CHEROKEE...AND ALGONA.
MOTORISTS IN OR TRAVELLING INTO NORTHWEST IOWA TONIGHT SHOULD
EXERCISE EXTREME CAUTION AND USE THEIR WINTER DRIVING SKILLS.
RAIN WILL CHANGE TO SNOW IN NORTHWEST IOWA EARLY TONIGHT. THERE MAY
BY SOME SLEET MIXED WITH THE RAIN FOR A BRIEF PERIOD BEFORE CHANGING
TO ALL SNOW. THE SNOW WILL BE ACCOMPANIED BY STRONG NORTHWEST WINDS.
HAHNSpecial weather statement, Nov 15, 5:34 PM CST, 2 hours 49 minutes before
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</html>Special weather statement, Nov 15, 5:51 PM CST, 2 hours 32 minutes before
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Severe Thunderstorm Warnings in Iowa, 1988Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.