Alert archive / Iowa / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 74, NWS Des Moines, IA

May 25, 20085 counties in Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at May 25, 2008, 8:54 PM CDT for 5 counties in Iowa. It was in force for 51 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 25, 2008, 8:54 PM CDT (01:54 UTC)
Expired: May 25, 2008, 9:45 PM CDT
In force: 51 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon

Counties Dallas County, IA, Jasper County, IA, Madison County, IA, Polk County, IA, Warren County, IA

What was reported inside it

Time	Report	Where	Remark
May 25, 9:10 PM CDT	HAIL 1.75	5 Sw Des Moines, IA	IN THE VICINITY OF OLD ARMY POST ROAD...THE INTERNATIONAL AIRPORT AND 63RD STREET.
May 25, 9:12 PM CDT	HAIL 0.88	5 Sw West Des Moines, IA	HAM RADIO OPERATOR REPORTS NICKEL SIZED HAIL.
May 25, 9:17 PM CDT	HAIL 1.75	3 S Des Moines, IA	REPORTED RELAYED BY DES MOINES PUBLIC SAFETY. HAIL OCCURED AT THE INTERSECTION OF UNION AND MC KINLEY.
May 25, 9:19 PM CDT	HAIL 1	3 S Des Moines, IA	QUARTER SIZED HAIL REPORTED 3 MI SOUTH OF DES MOINES.
May 25, 9:52 PM CDT	TSTM WND GST 60	Norwalk, IA	PEA SIZED HAIL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 3 storm reports to this severe thunderstorm warning; the first came 16 minutes after it went out.

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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 25, 7:54 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 1.9 hours before the alert went out and 240 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 14 J/kg
Mixed-layer CIN: -247 J/kg
Mixed-layer LCL: 2817 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 215 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KDMX 260154
SVRDMX
IAC049-099-121-153-181-260245-
/O.NEW.KDMX.SV.W.0074.080526T0154Z-080526T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
854 PM CDT SUN MAY 25 2008

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN DALLAS COUNTY IN CENTRAL IOWA...
  SOUTHWESTERN JASPER COUNTY IN CENTRAL IOWA...
  SOUTHERN POLK COUNTY IN CENTRAL IOWA...
  THIS INCLUDES THE CITY OF DES MOINES...
  NORTHEASTERN MADISON COUNTY IN SOUTH CENTRAL IOWA...
  NORTHERN WARREN COUNTY IN SOUTH CENTRAL IOWA...

* UNTIL 945 PM CDT.

* AT 851 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  CUMMING...OR 10 MILES SOUTHWEST OF DES MOINES...AND MOVING EAST AT
  37 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WEST DES MOINES BY 855 PM CDT...
  DES MOINES INT AIRPORT...NORWALK AND WINDSOR HEIGHTS BY 900 PM
  CDT...
  DES MOINES BY 905 PM CDT...
  PLEASANT HILL AND CARLISLE BY 915 PM CDT...
  ALTOONA BY 920 PM CDT...
  RUNNELLS BY 925 PM CDT...

GO TO A BASEMENT OR SMALL INTERIOR ROOM. COVER YOURSELF. EVACUATE
MOBILE HOMES...AND SEEK SHELTER IN A STURDY BUILDING. LARGE WIND
BLOWN HAIL...AND SEVERE STRAIGHT LINE WINDS CAN CAUSE EXTENSIVE
DAMAGE JUST LIKE A TORNADO.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO WARNING.
ALTHOUGH NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY
AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A
BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 4160 9393 4169 9329 4151 9325 4151 9330
      4151 9331 4151 9333 4146 9333 4138 9390
TIME...MOT...LOC 0154Z 249DEG 32KT 4150 9374

$$

KINNEY

1 follow-up statement

000 
WWUS53 KDMX 260214
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
914 PM CDT SUN MAY 25 2008

IAC049-260224-
/O.CAN.KDMX.SV.W.0074.000000T0000Z-080526T0245Z/
DALLAS IA-
914 PM CDT SUN MAY 25 2008

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DALLAS COUNTY IS
CANCELLED...

AT 912 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE EITHER WEAKENED OR
MOVED OUT OF THE AREA...AND NO LONGER POSE AN IMMEDIATE THREAT TO
LIFE OR PROPERTY. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS
BEEN CANCELLED.


A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
IOWA.

LAT...LON 4162 9372 4169 9329 4151 9325 4151 9333
      4146 9333 4138 9390
TIME...MOT...LOC 0214Z 248DEG 25KT 4153 9364

$$

IAC099-121-153-181-260245-
/O.CON.KDMX.SV.W.0074.000000T0000Z-080526T0245Z/
JASPER IA-POLK IA-MADISON IA-WARREN IA-
914 PM CDT SUN MAY 25 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR NORTHERN WARREN...NORTHEASTERN MADISON...SOUTHERN POLK AND
SOUTHWESTERN JASPER COUNTIES...

AT 912 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR DES MOINES
INT AIRPORT...OR NEAR DES MOINES...MOVING EAST AT 29 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  DES MOINES BY 920 PM CDT...
  PLEASANT HILL AND CARLISLE BY 930 PM CDT...
  ALTOONA AND 9 MILES NORTH OF HARTFORD BY 935 PM CDT...
  7 MILES NORTH OF RUNNELLS BY 940 PM CDT...
  MITCHELLVILLE BY 945 PM CDT...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL...DAMAGING WINDS AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE
OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG
BUILDING BUT AWAY FROM WINDOWS.

NICKEL SIZED HAIL WAS REPORTED AT I35 AND HIGHWAY 5 AT 913 PM CDT BY 
AMATEUR RADIO. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
IOWA.

LAT...LON 4162 9372 4169 9329 4151 9325 4151 9333
      4146 9333 4138 9390
TIME...MOT...LOC 0214Z 248DEG 25KT 4153 9364

$$

JUNGBLUTH

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.

NWS Des Moines, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 25, 8:03 PM CDT, 51 minutes earlier.

Area forecast discussion, May 25, 8:03 PM CDT, 51 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
803 PM CDT SUN MAY 25 2008

.DISCUSSION...
FOCUS IS ON DEVELOPING WEATHER. AMPLE MOISTURE IN PLACE AS 70
DEGREE DEW POINTS STREAMING INTO THE CWA. SC LOW IN MN WITH A WARM
FRONT EXTENDING DOWN FM WRN MN INTO ERN IA AND A COLD FRONT FM THE
DAKOTAS INTO ERN NEB WILL SINK SE THROUGH TONIGHT. THE FRONT WILL
SETTLE SOUTH OF IA LATE MONDAY MORNING. ALL MODES OF SEVERE
WEATHER POSSIBLE WITH 4000-5000 J/KG CAPE OVER THE CWA ALONG WITH
50+ KNOTS OF SHEAR. THE CAP IS VIRTUALLY GONE AS WELL AND WITH
THE SUN BREAKING OUT THERE WILL BE RAPID DESTABILIZATION ACROSS
THE CWA WITH STORMS EXPECTED TO RAPIDLY EVOLVE AND BECOME SEVERE.
THE SCENARIO HAS NOT CHANGED IN EVOLVING A COMPLEX OF STORMS OVER
SRN IA TONGIGHT WITH AN INCREASING HEAVY RAIN THREAT AFTER THE
SEVERE EVENT THIS EVENING. AS A RESULT THE FLASH FLOOD WATCH WILL
REMAIN IN PLACE.

THE ACTIVE WEATHER PATTERN CONTINUES AS FLOW BECOMES MORE ZONAL
AND SEVERAL SHORTWAVES PUSH ACROSS THE CWA. NEXT SYSTEM HAS
ALREADY BEEN ADVERTISED FOR THURSDAY NIGHT THROUGH FRIDAY NIGHT
THEN AGAIN MONDAY AND MONDAY NIGHT. AT THIS POINT SEVERE POTENTIAL
LOOKS DECENT FOR THE FRIDAY SYSTEM BUT THERE IS SOME QUESTION ON
TRACK AND TIMING FOR THE MONDAY SYSTEM MAKING IT DIFFICULT TO
DETERMINE ANY SEVERE POTENTIAL AT THIS POINT.

AS FOR TEMPS...A COOL DOWN IS EXPECTED IN THE WAKE OF THIS SYSTEM
WITH HIGHS DIPPING INTO THE 60S AND 70S BUT AS FLOW BECOMES
ZONAL...HIGHS SHOULD BE CLOSER TO NORMAL BY MIDWEEK.

&&

.AVIATION...26/00Z
MAIN CONCERN WILL BE WITH VERY UNSTABLE AMS IN PLACE.  KEPT MUCH OF
THE PCPN OVR THE SERN HLF OF THE TAFS AND GRADUALLY PULLED PCPN SWD
LATE TNGT INTO MON MRNG ACROSS THE SRN THIRD.  SVR WX LMTS TIME AVBL.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH FROM 7 PM CDT THIS EVENING THROUGH MONDAY
MORNING FOR ADAIR-ADAMS-APPANOOSE-AUDUBON-BOONE-CARROLL-CASS-
CLARKE-CRAWFORD-DALLAS-DAVIS-DECATUR-GREENE-GUTHRIE-JASPER-LUCAS-
MADISON-MAHASKA-MARION-MARSHALL-MONROE-POLK-POWESHIEK-RINGGOLD-
STORY-TAMA-TAYLOR-UNION-WAPELLO-WARREN-WAYNE.

&&

AVIATION...MS MAY 08
SHORT TERM/LONG TERM...FAB

Hazardous weather outlook, May 25, 8:31 AM CDT, 12 hours 23 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
831 AM CDT SUN MAY 25 2008

IAZ044>050-057>062-070>075-081>086-092>097-261345-
CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-
DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-
MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-
DECATUR-WAYNE-APPANOOSE-DAVIS-
831 AM CDT SUN MAY 25 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...TODAY AND TONIGHT

A FEW ISOLATED NON SEVERE THUNDERSTORMS ARE POSSIBLE DURING THE
DAY. HOWEVER...MORE INTENSE STORMS ARE FORECAST TO DEVELOP LATE
THIS AFTERNOON ACROSS WESTERN IOWA. THESE STORMS MAY BE SEVERE
WITH LARGE HAIL AND DAMAGING WINDS. ISOLATED TORNADOES WILL ALSO
BE POSSIBLE DURING THE LATE AFTERNOON AND EVENING TIME FRAMES. THE
STORMS ARE FORECAST TO CONSOLIDATE OVERNIGHT WITH HEAVY RAINS
ACROSS PORTIONS OF CENTRAL IOWA. SEVERAL INCHES OF NEW RAIN ARE
POSSIBLE LEADING TO FLASH FLOODING. A FLASH FLOOD WATCH HAS BEEN
ISSUED FOR CENTRAL AND SOUTHERN IOWA TONIGHT. PLEASE REFER TO THE
NATIONAL WEATHER SERVICE DES MOINES WEBSITE FOR ADDITIONAL
DETAILS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

ADDITIONAL THREATS FOR THUNDERSTORMS WILL CONTINUE INTO MONDAY AND
EARLY TUESDAY AS WELL AS THURSDAY NIGHT INTO LATE FRIDAY. THE
THREAT FOR SEVERE WEATHER APPEARS LIMITED EARLY IN THE WEEK
ALTHOUGH THE POSSIBILITY OF HEAVY RAINS WILL PERSIST. SEVERE
WEATHER WILL BE POSSIBLE ON THURSDAY NIGHT INTO FRIDAY AS WELL.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS LIKELY LATE THIS AFTERNOON INTO TONIGHT.
SPOTTER MAY ALSO BE NEEDED THURSDAY NIGHT INTO FRIDAY. AN
EMERGENCY MANAGEMENT CONFERENCE CALL HAS BEEN SCHEDULED FOR NOON TODAY.

IAZ004>007-015>017-023>028-033>039-261345-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-
831 AM CDT SUN MAY 25 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...TODAY AND TONIGHT

A FEW ISOLATED NON SEVERE THUNDERSTORMS ARE POSSIBLE DURING THE
DAY. HOWEVER...MORE INTENSE STORMS ARE FORECAST TO DEVELOP LATE
THIS AFTERNOON ACROSS WESTERN IOWA. THESE STORMS MAY BE SEVERE
WITH LARGE HAIL AND DAMAGING WINDS. ISOLATED TORNADOES WILL ALSO
BE POSSIBLE DURING THE LATE AFTERNOON AND EVENING TIME FRAMES.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THUNDERSTORMS ARE EXPECTED THURSDAY NIGHT INTO FRIDAY. SEVERE
WEATHER IS POSSIBLE WITH THESE STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS LIKELY LATE THIS AFTERNOON INTO TONIGHT.
SPOTTER MAY ALSO BE NEEDED THURSDAY NIGHT INTO FRIDAY. AN
EMERGENCY MANAGEMENT CONFERENCE CALL HAS BEEN SCHEDULED FOR NOON
TODAY.

In the hours before

Local storm report, May 25, 8:37 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
837 PM CDT SUN MAY 25 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0824 PM     HAIL             SAYLORVILLE             41.68N 93.63W
05/25/2008  E1.00 INCH       POLK               IA   TRAINED SPOTTER

            QUARTER HAIL REPORTED FROM SAYLORVILLE INFO CENTER.

&&

RK

Local storm report, May 25, 8:39 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
839 PM CDT SUN MAY 25 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0827 PM     HAIL             4 SSW NEW PROVIDENCE    42.24N 93.21W
05/25/2008  E0.25 INCH       HARDIN             IA   TRAINED SPOTTER

            SW NORHT PROVIDENCE REPORTS QUATER SIZED HAIL AND
            INTERSECTION OF F67 AND D65.

&&

RK

Local storm report, May 25, 8:42 PM CDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
842 PM CDT SUN MAY 25 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0823 PM     HAIL             3 SW NEW PROVIDENCE     42.25N 93.21W
05/25/2008  E0.88 INCH       HARDIN             IA   TRAINED SPOTTER

            PROVIDENCE REPORTS NICKEL SIZED HAIL.

&&

RK

Local storm report, May 25, 8:43 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
843 PM CDT SUN MAY 25 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0823 PM     HAIL             3 W BOONE AIRPORT       42.06N 93.91W
05/25/2008  E1.75 INCH       BOONE              IA   TRAINED SPOTTER

            GOLF BALL SIZE HAIL.

&&

RK

Local storm report, May 25, 8:51 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
851 PM CDT SUN MAY 25 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0843 PM     HAIL             2 N JOHNSTON            41.71N 93.70W
05/25/2008  E1.00 INCH       POLK               IA   COUNTY OFFICIAL

            QUARTER SIZED HAIL REPORTED BY DES MOINES PUBLIC SAFETY
            AT 7800 BLOCK OF BEAVER DRIVE, JOHNSTON.

&&

RK

Local storm report, May 25, 8:54 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
854 PM CDT SUN MAY 25 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0834 PM     HAIL             2 S NEW PROVIDENCE      42.26N 93.17W
05/25/2008  E1.75 INCH       HARDIN             IA   LAW ENFORCEMENT

0825 PM     TSTM WND DMG     2 W NEW PROVIDENCE      42.28N 93.21W
05/25/2008                   HARDIN             IA   LAW ENFORCEMENT

            ROOF DAMAGE DUE TO SEVERE WINDS

&&

CCOGIL

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 7:14 PM CDT	Severe Thunderstorm Warning	DMX	Bremer	46 min
May 25, 7:15 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Greene, Guthrie	45 min
May 25, 7:19 PM CDT	Severe Thunderstorm Warning	DMX	Audubon	26 min
May 25, 7:38 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Greene, Story	52 min
May 25, 7:44 PM CDT	Tornado Warning	DMX	Guthrie	46 min
May 25, 7:50 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer	40 min
May 25, 7:57 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Hardin	63 min
May 25, 8:02 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas	43 min
May 25, 8:05 PM CDT	Severe Thunderstorm Warning	DMX	Polk	40 min
May 25, 8:11 PM CDT	Severe Thunderstorm Warning	DMX	Dallas	19 min
May 25, 8:16 PM CDT	Tornado Warning	DMX	Grundy, Hardin, Marshall, Story	44 min
May 25, 8:27 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Butler, Grundy	33 min
May 25, 8:29 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Taylor, Union	46 min
May 25, 8:44 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Ringgold, Taylor	46 min
May 25, 8:46 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Polk, Story	44 min
May 25, 8:58 PM CDT	Severe Thunderstorm Warning	DMX	Grundy, Tama	47 min
May 25, 9:01 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Cass, Guthrie	44 min
May 25, 9:09 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Clarke, Madison, Union, Warren	51 min
May 25, 9:21 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Dallas, Madison, Polk	39 min
May 25, 9:25 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Greene, Guthrie, Polk	50 min
May 25, 9:29 PM CDT	Severe Thunderstorm Warning	DMX	Tama	46 min
May 25, 9:31 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Ringgold	44 min
May 25, 9:31 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Polk	44 min
May 25, 9:42 PM CDT	Severe Thunderstorm Warning	DMX	Polk, Warren	48 min
May 25, 9:59 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Jasper, Polk, Story	46 min
May 25, 10:03 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Marion	42 min
May 25, 10:12 PM CDT	Severe Thunderstorm Warning	DMX	Tama	48 min
May 25, 10:15 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Wayne	45 min
May 25, 10:20 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Greene, Hamilton, Hardin, Story, Webster	40 min
May 25, 10:21 PM CDT	Flash Flood Warning	DMX	Tama	113 min
May 25, 10:35 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Marion, Poweshiek	40 min
May 25, 10:43 PM CDT	Severe Thunderstorm Warning	DMX	Marshall, Story	36 min
May 25, 10:48 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Davis	42 min
May 25, 10:52 PM CDT	Tornado Warning	DMX	Poweshiek	23 min
May 25, 11:00 PM CDT	Severe Thunderstorm Warning	DMX	Monroe, Wapello	45 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2008 Every severe thunderstorm warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.