Alert archive / Iowa / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 113, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Aug 4, 1989, 10:06 PM CDT for Bremer County, Iowa. It was in force for 54 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
- Aug 4, 1989, 10:06 PM CDT (03:06 UTC)
- Expired
- Aug 4, 1989, 11:00 PM CDT
- In force
- 54 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Bremer 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 |
|---|---|---|---|
| Aug 4, 10:45 PM CDT | Thunderstorm Wind 50 | Bremer, 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
Minneapolis, MN (KSTC), launched 00:00Z, 3.1 hours before the alert went out and 253 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
- 4 J/kg
- Mixed-layer CIN
- -212 J/kg
- Mixed-layer LCL
- 3541 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KALO 050306 RRA
SVRALO
IAC017-050400-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WATERLOO IA
1006 PM CDT FRI AUG 4 1989
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 1100 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE NORTHEAST PART OF IOWA
BREMER
AT 1005 PM CDT WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM 20 MILES NORTH OF WATERLOO NEARWhat 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, Aug 4, 7:42 PM CDT, 2 hours 24 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 740 PM CDT FRI AUG 4 1989 ...A SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTH CENTRAL... NORTHEAST AND EAST CENTRAL IOWA UNTIL 1100 PM TONIGHT... AT 726 PM...AN ISOLATED STRONG THUNDERSTORM WAS OVER NORTHEAST IOWA...IN THE DUBUQUE AREA. THE STORM WAS BEGINNING TO WEAKEN... HOWEVER...SOME HAIL...STRONG WINDS AND EXTREME RAINS ARE STILL POSSIBLE. ALSO...SHOWERS AND ISOLATED THUNDERSTORMS WERE NOW ALONG THE IOWA/MINNESOTA BORDER...FROM NORTH OF MASON CITY TO THE NORTHEAST CORNER OF THE STATE. THE SHOWERS AND STORMS WERE MOVING EAST SOUTHEAST AT 30 MILES AN HOUR. KS
Local storm report, Aug 4, 8:11 PM CDT, 1 hour 55 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE LACROSSE WI
8 05 PM CDT FRI AUG 5 1989
AT 557 PM...1 INCH HAIL...TREES REPORTED DOWN AT FOUNTAIN CITY
IN BUFFALO COUNTY WI
AT 615 PM...DIME SIZE HAIL AT TREMPEALEAU IN TREMPEALEAU CO WI
AT 630 AM...DIME SIZE HAIL AT POST OFFICE IN DOWNTOWN LACROSSE
IN LACROSSE CO WI
AT 635 PM...2 1/4 INCH HAIL IN SOUTH LACROSSE THAT BROKE WINDOWS
IN LACROSSE CO WI
AT 700 PM...60 MILE AN HZOUR WINDS 5E VIROQUA IN VERNON CO WI
AT 720 PM...POWER FAILURE AT NWS OFFICE LACROSSE WI
AT 705 PM...11/2 INCH HAIL AT WESTBY WI IN VERNON CO
RELAYED BY NWS DSM
BRUCE/SCOTTSpecial weather statement, Aug 4, 8:28 PM CDT, 1 hour 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 820 PM CDT FRI AUG 4 1989 ...A SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTH CENTRAL... NORTHEAST AND EAST CENTRAL IOWA UNTIL 1100 PM TONIGHT... AT 805 PM...SCATTERED SHOWERS AND ISOLATED INTENSE THUNDERSTORMS CONTINUE TO MOVE INTO THE FAR NORTHEAST COUNTIES OF IOWA FROM MINNESOTA. THE INTENSE STORMS WERE IN HOWARD AND NORTHERN WINNESHIEK COUNTIES...45 TO 80 MILES EAST OF MASON CITY. LARGE HAIL...STRONG WINDS AND EXTREME RAINS ARE POSSIBLE WITH THESE STORMS. THE STRONG STORMS THAT WERE IN THE DUBUQUE AREA HAD MOVED INTO ILLINOIS. THE SHOWERS AND STORMS WERE MOVING EAST SOUTHEAST AT 30 MILES AN HOUR. KSy
Special weather statement, Aug 4, 8:40 PM CDT, 1 hour 26 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 840 PM CDT FRI AUG 4 1989 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHEAST AND EAST CENTRAL IOWA UNTIL 11 PM TONIGHT... ...SEVERE THUNDERSTORM WATCH FOR WESTERN IOWA UNTIL 2 AM SATURDAY MORNING... AT 828 PM...SCATTERED SHOWERS AND ISOLATED INTENSE THUNDERSTORMS CONTINUED OVER THE FAR NORTHEAST COUNTIES OF IOWA. THE INTENSE STORMS WERE IN SOUTHERN HOWARD...NORTHERN CHICKASAW AND WESTERN WINNESHIEK COUNTIES...40 TO 55 MILES NORTH THROUGH NORTHEAST OF WATERLOO. LARGE HAIL...STRONG WINDS AND EXTREME RAINS ARE POSSIBLE WITH THESE STORMS. THE SHOWERS AND STORMS WERE MOVING EAST SOUTHEAST AT 30 MILES AN HOUR. KS
Special weather statement, Aug 4, 9:06 PM CDT, 1 hour before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 905 PM CDT FRI AUG 4 1989 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHEAST AND EAST CENTRAL IOWA UNTIL 11 PM TONIGHT... ...SEVERE THUNDERSTORM WATCH FOR WESTERN IOWA UNTIL 2 AM SATURDAY MORNING... AT 858 PM...SCATTERED SHOWERS AND ISOLATED INTENSE THUNDERSTORMS CONTINUED OVER THE FAR NORTHEAST COUNTIES OF IOWA. THE INTENSE STORMS WERE 45 MILES NORTHEAST OF WATERLOO...APPROACHING THE TOWN OF CALMAR. LARGE HAIL...STRONG WINDS AND EXTREME RAINS ARE POSSIBLE WITH THESE STORMS. THESE STORMS ARE ALSO CAPABLE OF PRODUCING TORNADOES. THE SHOWERS AND STORMS WERE MOVING EAST SOUTHEAST AT 30 MILES AN HOUR. KS
Special weather statement, Aug 4, 9:40 PM CDT, 26 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 935 PM CDT FRI AUG 4 1989 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHEAST AND EAST CENTRAL IOWA UNTIL 11 PM TONIGHT... ...SEVERE THUNDERSTORM WATCH FOR WESTERN IOWA UNTIL 2 AM SATURDAY MORNING... AT 925 PM...SCATTERED SHOWERS AND ISOLATED INTENSE THUNDERSTORMS CONTINUED OVER THE FAR NORTHEAST COUNTIES OF IOWA. THE THUNDERSTORMS WERE NORTH OF A LINE FROM MASON CITY TO 25 MILES NORTH OF WATERLOO TO 35 MILES NORTH OF DUBUQUE. THE MOST INTENSE STORM WAS LOCATED NORTH- WEST OF WEST UNION OR 40 MILES NORTHEAST OF WATERLOO. LARGE HAIL... HIGH WINDS AND EXTREMELY HEAVY RAIN ARE POSSIBLE FROM THIS STORM. THE SHOWERS AND STORMS WERE MOVING EAST SOUTHEAST AT 30 MILES AN HOUR. INTENSE THUNDERSTORMS WERE ALSO LOCATED OVER SOUTHEAST NEBRASKA. THESE STORMS WERE MOVING NORTHEAST AT 30 MILES AND WILL BE MOVING INTO IOWA SOUTH OF COUNCIL BLUFFS BY 10 PM. THESE STORMS HAVE BEEN PRODUCING LARGE HAIL AND HIGH WINDS AS THEY MOVED ACROSS SOUTHEAST NEBRASKA. DLF
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 8:27 PM CDT | Severe Thunderstorm Warning | DMX | Winneshiek | 48 min |
| Aug 4, 8:39 PM CDT | Severe Thunderstorm Warning | DMX | Chickasaw | 51 min |
| Aug 4, 8:50 PM CDT | Tornado Warning | DMX | Chickasaw | 25 min |
| Aug 4, 9:25 PM CDT | Severe Thunderstorm Warning | DMX | Fayette | 50 min |
| Aug 4, 11:41 PM CDT | Severe Thunderstorm Warning | DMX | Buchanan | 34 min |
| Aug 5, 7:04 AM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 41 min |
| Aug 5, 8:00 AM CDT | Severe Thunderstorm Warning | DMX | Crawford | 45 min |
| Aug 5, 8:09 AM CDT | Severe Thunderstorm Warning | DMX | Carroll | 51 min |
| Aug 5, 8:21 AM CDT | Severe Thunderstorm Warning | DMX | Greene, Guthrie | 39 min |
| Aug 5, 8:41 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas | 44 min |
| Aug 5, 8:55 AM CDT | Severe Thunderstorm Warning | DMX | Polk, Story | 50 min |
| Aug 5, 8:55 AM CDT | Severe Thunderstorm Warning | DMX | Warren | 50 min |
| Aug 5, 9:20 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion | 40 min |
| Aug 5, 9:20 AM CDT | Severe Thunderstorm Warning | DMX | Marshall | 40 min |
| Aug 5, 9:54 AM CDT | Severe Thunderstorm Warning | DMX | Poweshiek, Tama | 54 min |
| Aug 5, 9:54 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall | 33 min |
| Aug 5, 10:22 AM CDT | Severe Thunderstorm Warning | DMX | Benton, Iowa | 68 min |
| Aug 5, 10:50 AM CDT | Severe Thunderstorm Warning | DMX | Keokuk | 55 min |
| Aug 5, 10:50 AM CDT | Severe Thunderstorm Warning | DMX | Johnson, Linn | 43 min |
| Aug 5, 10:50 AM CDT | Severe Thunderstorm Warning | DMX | Washington | 43 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1989Every severe thunderstorm warning in 1989
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.