Alert archive / Iowa / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 293, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Aug 24, 1998, 9:54 AM CDT for Black Hawk County, Iowa. It was in force for 36 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 24, 1998, 9:54 AM CDT (14:54 UTC)
- Expired
- Aug 24, 1998, 10:30 AM CDT
- In force
- 36 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Black Hawk County, IA
The radar
The Des Moines radar (KDMX), 143 km from the middle of the area, began a volume at 14:57 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 24, 10:05 AM CDT | Thunderstorm Wind 50 | Cedar Falls, 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.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 2.9 hours before the alert went out and 177 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
- 2161 J/kg
- Mixed-layer CIN
- -158 J/kg
- Mixed-layer LCL
- 1178 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
825 WUUS1 KDSM 241456 RRA SVRDSM IAC013-241530- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DES MOINES IA 954 AM CDT MON AUG 24 1998 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BLACK HAWK COUNTY IN NORTHEASTERN IOWA * UNTIL 1030 AM CDT * AT 953 AM CDT... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES NORTH NORTHWEST OF WATERLOO MOVING EAST AT 35 MPH. * THIS STORM CAN BE EXPECTED NEAR... WATERLOO BY 956 AM CDT EVANSDALE BY 1003 AM CDT ELK RUN HEIGHTS BY 1006 AM CDT RAYMOND BY 1009 AM CDT DUNKERTON BY 1013 AM CDT THIS STORM HAS A HISTORY OF LARGE HAIL. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS FILLBACH
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, Aug 24, 6:00 AM CDT, 3 hours 54 minutes before
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086- 092>097-250202- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 600 AM CDT MON AUG 24 1998 HAZARD--SCATTERED THUNDERSTORMS...SOME SEVERE WITH WIND GUSTS TO 80 MPH...ISOLATED TORNADOES...AND SOME HAIL. AREA OF CONCERN AND TIMING DETAILS--HIGHEST THREAT AREA WILL BE ALONG AND NORTH OF A POCAHONTAS TO HAMPTON TO TOLEDO/TAMA LINE FROM 100 PM TO 600 PM. SLIGHTLY LESS OF A THREAT SOUTH OF THAT LINE AND NORTH OF A LINE FROM AUDUBON TO DES MOINES TO MONTEZUMA FROM 300 TO 800 PM. METEOROLOGICAL COMMENTS--A NEARLY STATIONARY FRONT EXTENDING FROM A LOW PRESSURE CENTER IN NORTH-CENTRAL NEBRASKA INTO CENTRAL IOWA WILL MOVE BACK TO THE NORTH TODAY AS A WARM FRONT. BY LATE THIS AFTERNOON...THIS FRONT WILL EXTEND FROM NORTHEAST NEBRASKA THROUGH NORTHERN IOWA. MEANWHILE A STRONG UPPER LEVEL DISTURBANCE IN THE NORTHERN PLAINS WILL MOVE SOUTHEAST INTO SOUTHEAST SOUTH DAKOTA AND FROM THERE ALONG THE MINNESOTA/IOWA BORDER LATE THIS AFTERNOON INTO THE EVENING HOURS. THE WIND THROUGHOUT THE DEPTH OF THE ATMOSPHERE WILL EXHIBIT A LARGE AMOUNT OF VEERING OR TURNING TODAY AND COULD CAUSE STORMS TO ROTATE...ESPECIALLY ALONG AND NORTH OF THE WARM FRONT IN NORTHERN IOWA. IN THOSE LOCATIONS...SOME TORNADIC SUPERCELLS WILL BE POSSIBLE. FARTHER SOUTH...IN CENTRAL IOWA...THE LOWEST LEVELS OF THE ATMOSPHERE WILL NOT BE QUITE AS CONDICIVE TO THE TURNING MOTION...SO THE TORNADIC POTENTIAL IS NOT NEAR AS GREAT. HOWEVER... ONCE THE THUNDERSTORMS DEVELOP IN FAR NORTHWEST IOWA OR SOUTHEAST SOUTH DAKOTA...THEY WILL STILL MOVE SOUTHEAST TOWARD THE OUTLOOK AREA AND COULD MAKE THE TRANSITION INTO BOW ECHOS...WHICH WOULD BE CAPABLE OF PRODUCING VERY STRONG WINDS DUE TO THEIR MOVEMENT TO THE SOUTHEAST AT GREATER THAN 40 MPH. FINALLY...WITH WARM TEMPERATURES IN THE ATMOSPHERE...LARGE HAIL IS ONLY A SECONDARY THREAT TODAY AND THIS EVENING. SINCE THE UPPER LEVEL SYSTEM IS MOVING QUICKLY...AND WINDS AT MID-LEVELS WILL BE FAIRLY FAST...THE STORM POTENTIAL WILL DECREASE RAPIDLY AFTER 800 OR 900 PM. AN INITIAL AREA OF SHOWERS AND THUNDERSTORMS OVER NORTHEAST NEBRASKA SHOULD DISSIPATE OVER WESTERN IOWA THIS MORNING AND ARE NOT EXPECTED TO BECOME SEVERE. PRECAUTIONS--SPOTTER ACTIVATION IS NOT ANTICIPATED THIS MORNING... BUT WILL LIKELY BE NEEDED OVER THE NORTHERN TWO-THIRDS OF THE STATE THIS AFTERNOON AND EVENING. FOR THE LATEST UPDATES ON THIS DEVELOPING WEATHER SITUATION...STAY TUNED TO YOUR NOAA WEATHER RADIO...OR YOUR FAVORITE TELEVISION OR CABLE AFFILIATES FOR UPDATED CENTRAL IOWA THUNDERSTORM OUTLOOKS...FORECASTS AND WATCHES LATER TODAY. SEARCY
Special weather statement, Aug 24, 6:00 AM CDT, 3 hours 54 minutes before
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086- 092>097-250202- CENTRAL IOWA THUNDERSTORM OUTLOOK...CORRECTED MND HEADER TYPE... NATIONAL WEATHER SERVICE DES MOINES IA 600 AM CDT MON AUG 24 1998 HAZARD--SCATTERED THUNDERSTORMS...SOME SEVERE WITH WIND GUSTS TO 80 MPH...ISOLATED TORNADOES...AND SOME HAIL. AREA OF CONCERN AND TIMING DETAILS--HIGHEST THREAT AREA WILL BE ALONG AND NORTH OF A POCAHONTAS TO HAMPTON TO TOLEDO/TAMA LINE FROM 100 PM TO 600 PM. SLIGHTLY LESS OF A THREAT SOUTH OF THAT LINE AND NORTH OF A LINE FROM AUDUBON TO DES MOINES TO MONTEZUMA FROM 300 TO 800 PM. METEOROLOGICAL COMMENTS--A NEARLY STATIONARY FRONT EXTENDING FROM A LOW PRESSURE CENTER IN NORTH-CENTRAL NEBRASKA INTO CENTRAL IOWA WILL MOVE BACK TO THE NORTH TODAY AS A WARM FRONT. BY LATE THIS AFTERNOON...THIS FRONT WILL EXTEND FROM NORTHEAST NEBRASKA THROUGH NORTHERN IOWA. MEANWHILE A STRONG UPPER LEVEL DISTURBANCE IN THE NORTHERN PLAINS WILL MOVE SOUTHEAST INTO SOUTHEAST SOUTH DAKOTA AND FROM THERE ALONG THE MINNESOTA/IOWA BORDER LATE THIS AFTERNOON INTO THE EVENING HOURS. THE WIND THROUGHOUT THE DEPTH OF THE ATMOSPHERE WILL EXHIBIT A LARGE AMOUNT OF VEERING OR TURNING TODAY AND COULD CAUSE STORMS TO ROTATE...ESPECIALLY ALONG AND NORTH OF THE WARM FRONT IN NORTHERN IOWA. IN THOSE LOCATIONS...SOME TORNADIC SUPERCELLS WILL BE POSSIBLE. FARTHER SOUTH...IN CENTRAL IOWA...THE LOWEST LEVELS OF THE ATMOSPHERE WILL NOT BE QUITE AS CONDICIVE TO THE TURNING MOTION...SO THE TORNADIC POTENTIAL IS NOT NEAR AS GREAT. HOWEVER... ONCE THE THUNDERSTORMS DEVELOP IN FAR NORTHWEST IOWA OR SOUTHEAST SOUTH DAKOTA...THEY WILL STILL MOVE SOUTHEAST TOWARD THE OUTLOOK AREA AND COULD MAKE THE TRANSITION INTO BOW ECHOS...WHICH WOULD BE CAPABLE OF PRODUCING VERY STRONG WINDS DUE TO THEIR MOVEMENT TO THE SOUTHEAST AT GREATER THAN 40 MPH. FINALLY...WITH WARM TEMPERATURES IN THE ATMOSPHERE...LARGE HAIL IS ONLY A SECONDARY THREAT TODAY AND THIS EVENING. SINCE THE UPPER LEVEL SYSTEM IS MOVING QUICKLY...AND WINDS AT MID-LEVELS WILL BE FAIRLY FAST...THE STORM POTENTIAL WILL DECREASE RAPIDLY AFTER 800 OR 900 PM. AN INITIAL AREA OF SHOWERS AND THUNDERSTORMS OVER NORTHEAST NEBRASKA SHOULD DISSIPATE OVER WESTERN IOWA THIS MORNING AND ARE NOT EXPECTED TO BECOME SEVERE. PRECAUTIONS--SPOTTER ACTIVATION IS NOT ANTICIPATED THIS MORNING... BUT WILL LIKELY BE NEEDED OVER THE NORTHERN TWO-THIRDS OF THE STATE THIS AFTERNOON AND EVENING. FOR THE LATEST UPDATES ON THIS DEVELOPING WEATHER SITUATION...STAY TUNED TO YOUR NOAA WEATHER RADIO...OR YOUR FAVORITE TELEVISION OR CABLE AFFILIATES FOR UPDATED CENTRAL IOWA THUNDERSTORM OUTLOOKS...FORECASTS AND WATCHES LATER TODAY. SEARCY
Special weather statement, Aug 24, 6:00 AM CDT, 3 hours 54 minutes before
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086- 092>097-250202- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 600 AM CDT MON AUG 24 1998 HAZARD--SCATTERED THUNDERSTORMS...SOME SEVERE WITH WIND GUSTS TO 80 MPH...ISOLATED TORNADOES...AND SOME HAIL. AREA OF CONCERN AND TIMING DETAILS--HIGHEST THREAT AREA WILL BE ALONG AND NORTH OF A POCAHONTAS TO HAMPTON TO TOLEDO/TAMA LINE FROM 100 PM TO 600 PM. SLIGHTLY LESS OF A THREAT SOUTH OF THAT LINE AND NORTH OF A LINE FROM AUDUBON TO DES MOINES TO MONTEZUMA FROM 300 TO 800 PM. METEOROLOGICAL COMMENTS--A NEARLY STATIONARY FRONT EXTENDING FROM A LOW PRESSURE CENTER IN NORTH-CENTRAL NEBRASKA INTO CENTRAL IOWA WILL MOVE BACK TO THE NORTH TODAY AS A WARM FRONT. BY LATE THIS AFTERNOON...THIS FRONT WILL EXTEND FROM NORTHEAST NEBRASKA THROUGH NORTHERN IOWA. MEANWHILE A STRONG UPPER LEVEL DISTURBANCE IN THE NORTHERN PLAINS WILL MOVE SOUTHEAST INTO SOUTHEAST SOUTH DAKOTA AND FROM THERE ALONG THE MINNESOTA/IOWA BORDER LATE THIS AFTERNOON INTO THE EVENING HOURS. THE WIND THROUGHOUT THE DEPTH OF THE ATMOSPHERE WILL EXHIBIT A LARGE AMOUNT OF VEERING OR TURNING TODAY AND COULD CAUSE STORMS TO ROTATE...ESPECIALLY ALONG AND NORTH OF THE WARM FRONT IN NORTHERN IOWA. IN THOSE LOCATIONS...SOME TORNADIC SUPERCELLS WILL BE POSSIBLE. FARTHER SOUTH...IN CENTRAL IOWA...THE LOWEST LEVELS OF THE ATMOSPHERE WILL NOT BE QUITE AS CONDICIVE TO THE TURNING MOTION...SO THE TORNADIC POTENTIAL IS NOT NEAR AS GREAT. HOWEVER... ONCE THE THUNDERSTORMS DEVELOP IN FAR NORTHWEST IOWA OR SOUTHEAST SOUTH DAKOTA...THEY WILL STILL MOVE SOUTHEAST TOWARD THE OUTLOOK AREA AND COULD MAKE THE TRANSITION INTO BOW ECHOS...WHICH WOULD BE CAPABLE OF PRODUCING VERY STRONG WINDS DUE TO THEIR MOVEMENT TO THE SOUTHEAST AT GREATER THAN 40 MPH. FINALLY...WITH WARM TEMPERATURES IN THE ATMOSPHERE...LARGE HAIL IS ONLY A SECONDARY THREAT TODAY AND THIS EVENING. SINCE THE UPPER LEVEL SYSTEM IS MOVING QUICKLY...AND WINDS AT MID-LEVELS WILL BE FAIRLY FAST...THE STORM POTENTIAL WILL DECREASE RAPIDLY AFTER 800 OR 900 PM. AN INITIAL AREA OF SHOWERS AND THUNDERSTORMS OVER NORTHEAST NEBRASKA SHOULD DISSIPATE OVER WESTERN IOWA THIS MORNING AND ARE NOT EXPECTED TO BECOME SEVERE. PRECAUTIONS--SPOTTER ACTIVATION IS NOT ANTICIPATED THIS MORNING... BUT WILL LIKELY BE NEEDED OVER THE NORTHERN TWO-THIRDS OF THE STATE THIS AFTERNOON AND EVENING. FOR THE LATEST UPDATES ON THIS DEVELOPING WEATHER SITUATION...STAY TUNED TO YOUR NOAA WEATHER RADIO...OR YOUR FAVORITE TELEVISION OR CABLE AFFILIATES FOR UPDATED CENTRAL IOWA THUNDERSTORM OUTLOOKS...FORECASTS AND WATCHES LATER TODAY. SEARCY
Special weather statement, Aug 24, 6:00 AM CDT, 3 hours 54 minutes before
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086- 092>097-250202- CENTRAL IOWA THUNDERSTORM OUTLOOK...CORRECTED MND HEADER TYPE... NATIONAL WEATHER SERVICE DES MOINES IA 600 AM CDT MON AUG 24 1998 HAZARD--SCATTERED THUNDERSTORMS...SOME SEVERE WITH WIND GUSTS TO 80 MPH...ISOLATED TORNADOES...AND SOME HAIL. AREA OF CONCERN AND TIMING DETAILS--HIGHEST THREAT AREA WILL BE ALONG AND NORTH OF A POCAHONTAS TO HAMPTON TO TOLEDO/TAMA LINE FROM 100 PM TO 600 PM. SLIGHTLY LESS OF A THREAT SOUTH OF THAT LINE AND NORTH OF A LINE FROM AUDUBON TO DES MOINES TO MONTEZUMA FROM 300 TO 800 PM. METEOROLOGICAL COMMENTS--A NEARLY STATIONARY FRONT EXTENDING FROM A LOW PRESSURE CENTER IN NORTH-CENTRAL NEBRASKA INTO CENTRAL IOWA WILL MOVE BACK TO THE NORTH TODAY AS A WARM FRONT. BY LATE THIS AFTERNOON...THIS FRONT WILL EXTEND FROM NORTHEAST NEBRASKA THROUGH NORTHERN IOWA. MEANWHILE A STRONG UPPER LEVEL DISTURBANCE IN THE NORTHERN PLAINS WILL MOVE SOUTHEAST INTO SOUTHEAST SOUTH DAKOTA AND FROM THERE ALONG THE MINNESOTA/IOWA BORDER LATE THIS AFTERNOON INTO THE EVENING HOURS. THE WIND THROUGHOUT THE DEPTH OF THE ATMOSPHERE WILL EXHIBIT A LARGE AMOUNT OF VEERING OR TURNING TODAY AND COULD CAUSE STORMS TO ROTATE...ESPECIALLY ALONG AND NORTH OF THE WARM FRONT IN NORTHERN IOWA. IN THOSE LOCATIONS...SOME TORNADIC SUPERCELLS WILL BE POSSIBLE. FARTHER SOUTH...IN CENTRAL IOWA...THE LOWEST LEVELS OF THE ATMOSPHERE WILL NOT BE QUITE AS CONDICIVE TO THE TURNING MOTION...SO THE TORNADIC POTENTIAL IS NOT NEAR AS GREAT. HOWEVER... ONCE THE THUNDERSTORMS DEVELOP IN FAR NORTHWEST IOWA OR SOUTHEAST SOUTH DAKOTA...THEY WILL STILL MOVE SOUTHEAST TOWARD THE OUTLOOK AREA AND COULD MAKE THE TRANSITION INTO BOW ECHOS...WHICH WOULD BE CAPABLE OF PRODUCING VERY STRONG WINDS DUE TO THEIR MOVEMENT TO THE SOUTHEAST AT GREATER THAN 40 MPH. FINALLY...WITH WARM TEMPERATURES IN THE ATMOSPHERE...LARGE HAIL IS ONLY A SECONDARY THREAT TODAY AND THIS EVENING. SINCE THE UPPER LEVEL SYSTEM IS MOVING QUICKLY...AND WINDS AT MID-LEVELS WILL BE FAIRLY FAST...THE STORM POTENTIAL WILL DECREASE RAPIDLY AFTER 800 OR 900 PM. AN INITIAL AREA OF SHOWERS AND THUNDERSTORMS OVER NORTHEAST NEBRASKA SHOULD DISSIPATE OVER WESTERN IOWA THIS MORNING AND ARE NOT EXPECTED TO BECOME SEVERE. PRECAUTIONS--SPOTTER ACTIVATION IS NOT ANTICIPATED THIS MORNING... BUT WILL LIKELY BE NEEDED OVER THE NORTHERN TWO-THIRDS OF THE STATE THIS AFTERNOON AND EVENING. FOR THE LATEST UPDATES ON THIS DEVELOPING WEATHER SITUATION...STAY TUNED TO YOUR NOAA WEATHER RADIO...OR YOUR FAVORITE TELEVISION OR CABLE AFFILIATES FOR UPDATED CENTRAL IOWA THUNDERSTORM OUTLOOKS...FORECASTS AND WATCHES LATER TODAY. SEARCY
Special weather statement, Aug 24, 7:29 AM CDT, 2 hours 25 minutes before
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086- 092>097-250202- CENTRAL IOWA THUNDERSTORM OUTLOOK...UPDATED... NATIONAL WEATHER SERVICE DES MOINES IA 729 AM CDT MON AUG 24 1998 HAZARD--SCATTERED THUNDERSTORMS...SOME SEVERE WITH WIND GUSTS TO 80 MPH...ISOLATED TORNADOES...AND SOME HAIL. AREA OF CONCERN AND TIMING DETAILS--HIGHEST THREAT AREA WILL BE ALONG AND NORTH OF A POCAHONTAS TO HAMPTON TO TOLEDO/TAMA LINE THIS MORNING...AND THEN AGAIN THIS AFTERNOON. SLIGHTLY LESS OF A THREAT SOUTH OF THAT LINE AND NORTH OF A LINE FROM AUDUBON TO DES MOINES TO MONTEZUMA THIS MORNING AND AGAIN FROM 200 TO 800 PM. METEOROLOGICAL COMMENTS--THUNDERSTORMS OVER SOUTHEAST SOUTH DAKOTA CONTINUE TO STRENGTHEN AS THEY MOVE TOWARD NORTHWEST IOWA FROM SOUTHEAST SOUTH DAKOTA. THEIR SOUTHEASTWARD MOVEMENT CONTINUES TO TAKE THEM INTO DEEPER MOISTURE...OVER NORTHERN IOWA. SOME OF THESE STORMS COULD BE SEVERE OVER PARTS OF NORTHERN IOWA THIS MORNING. DAMAGING WINDS AND HAIL WOULD BE THE MAIN THREAT. THEN...A NEARLY STATIONARY FRONT EXTENDING FROM A LOW PRESSURE CENTER IN NORTH-CENTRAL NEBRASKA INTO CENTRAL IOWA WILL MOVE BACK TO THE NORTH TODAY AS A WARM FRONT. BY LATE THIS AFTERNOON...THIS FRONT WILL EXTEND FROM NORTHEAST NEBRASKA THROUGH NORTHERN IOWA. MEANWHILE A STRONG UPPER LEVEL DISTURBANCE IN THE NORTHERN PLAINS WILL MOVE SOUTHEAST INTO SOUTHEAST SOUTH DAKOTA AND FROM THERE ALONG THE MINNESOTA/IOWA BORDER LATE THIS AFTERNOON INTO THE EVENING HOURS. THE WIND THROUGHOUT THE DEPTH OF THE ATMOSPHERE WILL EXHIBIT A LARGE AMOUNT OF VEERING OR TURNING TODAY AND COULD CAUSE STORMS TO ROTATE...ESPECIALLY ALONG AND NORTH OF THE WARM FRONT IN NORTHERN IOWA. IN THOSE LOCATIONS...SOME TORNADIC SUPERCELLS WILL BE POSSIBLE. FARTHER SOUTH...IN CENTRAL IOWA...THE LOWEST LEVELS OF THE ATMOSPHERE WILL NOT BE QUITE AS CONDUCIVE TO THE TURNING MOTION...SO THE TORNADIC POTENTIAL IS NOT NEAR AS GREAT. HOWEVER... ONCE THE THUNDERSTORMS DEVELOP IN FAR NORTHWEST IOWA OR SOUTHEAST SOUTH DAKOTA...THEY WILL STILL MOVE SOUTHEAST TOWARD THE OUTLOOK AREA AND COULD MAKE THE TRANSITION INTO BOW ECHOS...WHICH WOULD BE CAPABLE OF PRODUCING VERY STRONG WINDS DUE TO THEIR MOVEMENT TO THE SOUTHEAST AT GREATER THAN 40 MPH. FINALLY...WITH WARM TEMPERATURES IN THE ATMOSPHERE...LARGE HAIL IS ONLY A SECONDARY THREAT TODAY AND THIS EVENING. SINCE THE UPPER LEVEL SYSTEM IS MOVING QUICKLY...AND WINDS AT MID-LEVELS WILL BE FAIRLY FAST...THE STORM POTENTIAL WILL DECREASE RAPIDLY AFTER 800 OR 900 PM. PRECAUTIONS--SPOTTER ACTIVATION MAY BE REQUIRED THROUGHOUT THE DAY...ESPECIALLY OVER NORTHERN AND CENTRAL IOWA. FOR THE LATEST UPDATES ON THIS DEVELOPING WEATHER SITUATI6ON...STAY TUNED TO YOUR NOAA WEATHER RADIO...OR YOUR FAVORITE TELEVISION OR CABLE AFFILIATES FOR UPDATED CENTRAL IOWA THUNDERSTORM OUTLOOKS...FORECASTS AND WATCHES LATER TODAY. SEARCY
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 8:07 AM CDT | Severe Thunderstorm Warning | DMX | Emmet, Palo Alto | 48 min |
| Aug 24, 8:20 AM CDT | Tornado Warning | DMX | Palo Alto | 35 min |
| Aug 24, 8:34 AM CDT | Severe Thunderstorm Warning | DMX | Wright | 36 min |
| Aug 24, 8:36 AM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 49 min |
| Aug 24, 8:56 AM CDT | Severe Thunderstorm Warning | DMX | Franklin | 49 min |
| Aug 24, 9:02 AM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 33 min |
| Aug 24, 9:20 AM CDT | Severe Thunderstorm Warning | DMX | Wright | 35 min |
| Aug 24, 9:27 AM CDT | Severe Thunderstorm Warning | DMX | Butler | 33 min |
| Aug 24, 9:37 AM CDT | Severe Thunderstorm Warning | DMX | Grundy | 33 min |
| Aug 24, 10:24 AM CDT | Tornado Warning | DMX | Black Hawk | 31 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1998Every severe thunderstorm warning in 1998
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; radar from the NEXRAD Level II archive.