Alert archive / Iowa / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 464, NWS Des Moines, IA

July 27, 2008Appanoose County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jul 27, 2008, 9:14 PM CDT for Appanoose County, Iowa. It was in force for 31 min. 1 report 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: Jul 27, 2008, 9:14 PM CDT (02:14 UTC)
Expired: Jul 27, 2008, 9:45 PM CDT
In force: 31 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon

County Appanoose County, IA

The radar

The Des Moines radar (KDMX), 128 km from the middle of the area, began a volume at 02:14 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
Jul 27, 9:17 PM CDT	TSTM WND GST 60	2 Nnw Centerville, IA	AT LEAST 60 MPH WINDS ESTIMATED ALONG WITH DIME SIZED HAIL AND TORRENTIAL RAINFALL.

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 one storm report to this severe thunderstorm warning; the first came 3 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
Jul 27, 2:29 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 2.2 hours before the alert went out and 225 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: 566 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 1193 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KDMX 280214
SVRDMX
IAC007-280245-
/O.NEW.KDMX.SV.W.0464.080728T0214Z-080728T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
914 PM CDT SUN JUL 27 2008

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  APPANOOSE COUNTY IN SOUTH CENTRAL IOWA...

* UNTIL 945 PM CDT.

* AT 910 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
  MYSTIC...OR 28 MILES NORTHWEST OF LANCASTER...AND MOVING SOUTHEAST
  AT 47 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CENTERVILLE AND NUMA BY 915 PM CDT...
  CINCINNATI BY 920 PM CDT...
  EXLINE BY 925 PM CDT...

LARGE HAIL CAN CAUSE INJURY AND PROPERTY DAMAGE. SEEK SAFETY INDOORS
UNTIL THE STORM PASSES.

REPORT TORNADOES...WIND IN EXCESS OF 50 MPH...HAIL LARGER THAN ONE
HALF INCH...OR STORM DAMAGE BY CALLING LOCAL LAW ENFORCEMENT AND
ASKING THEM TO RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4058 9307 4082 9310 4090 9301 4090 9299
      4090 9298 4090 9282 4059 9264 4059 9265
TIME...MOT...LOC 0214Z 327DEG 40KT 4075 9289

$$

LEE

2 follow-up statements

000 
WWUS53 KDMX 280228
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
928 PM CDT SUN JUL 27 2008

IAC007-280245-
/O.CON.KDMX.SV.W.0464.000000T0000Z-080728T0245Z/
APPANOOSE IA-
928 PM CDT SUN JUL 27 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR APPANOOSE COUNTY...

AT 925 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR EXLINE...OR
17 MILES NORTHWEST OF LANCASTER...MOVING SOUTHEAST AT 46 MPH.

PREPARE FOR DAMAGING WINDS...FALLING TREES AND FLYING DEBRIS. MOVE
INDOORS AND STAY AWAY FROM WINDOWS. IF YOU LIVE IN A MOBILE HOME...
SEEK SHELTER IN A STURDY BUILDING.

AT 917 PM...TRAINED SPOTTERS REPORTED 60 MPH WINDS...DIME HAIL AND 
TORRENTIAL RAIN 2 MILES NORTHWEST OF CENTERVILLE.

REPORT TORNADOES...WIND IN EXCESS OF 50 MPH...HAIL LARGER THAN ONE
HALF INCH...OR STORM DAMAGE BY CALLING LOCAL LAW ENFORCEMENT AND
ASKING THEM TO RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SUNDAY EVENING FOR IOWA.

LAT...LON 4058 9307 4082 9310 4090 9301 4090 9299
      4090 9298 4090 9282 4059 9264 4059 9265
TIME...MOT...LOC 0228Z 327DEG 40KT 4062 9278

$$

LEE

000 
WWUS53 KDMX 280245
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
946 PM CDT SUN JUL 27 2008

IAC007-280256-
/O.EXP.KDMX.SV.W.0464.000000T0000Z-080728T0245Z/
APPANOOSE IA-
946 PM CDT SUN JUL 27 2008

...THE SEVERE THUNDERSTORM WARNING FOR APPANOOSE COUNTY HAS
EXPIRED...

AT 943 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO
EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SUNDAY EVENING FOR IOWA.

LAT...LON 4058 9307 4082 9310 4090 9301 4090 9299
      4090 9298 4090 9282 4059 9264 4059 9265
TIME...MOT...LOC 0228Z 327DEG 40KT 4062 9278

$$

LEE

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 Jul 27, 3:28 PM CDT, 5 hours 46 minutes earlier.

Area forecast discussion, Jul 27, 3:28 PM CDT, 5 hours 46 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
328 PM CDT SUN JUL 27 2008

.DISCUSSION...
WILL KEEP DISCUSSION BRIEF TODAY WITH ONGOING ACTIVE WEATHER. STRONG
TO SEVERE STORMS CURRENTLY FIRING ALONG CONVECTIVE OUTFLOW IN
NORTHERN IOWA AND WILL KEEP PROGRESSING SOUTHWARD INTO CENTRAL AND
SOUTHERN IOWA THROUGH LATE AFTERNOON/EVENING. SEVERE THUNDERSTORM
WATCH CONTINUES FOR MOST OF THE CWA UNTIL 10 PM. ALREADY GETTING
SIGNIFICANT STRAIGHT LINE WIND REPORTS...CAN/T RULE OUT ISOLATED TOR
THREAT INVOF BOUNDARY FOR THE NEXT SEVERAL HOURS. SOME QUESTION
ABOUT CONVECTIVE EVOLUTION BEYOND THE FIRST SHOT...AS THE GFS/ECMWF
BOTH SUGGESTING ADDITIONAL MCS POTENTIAL ESPECIALLY EASTERN HALF
LATE TONIGHT. WILL HAVE TO WATCH HEAVY RAIN THREAT CLOSELY AS
CONVECTION MOVES INTO SOUTHERN IOWA...AREAS THAT CANNOT TAKE MUCH
ADDITIONAL RAIN BEFORE FLASH FLOODING OCCURS. NO FLASH FLOOD WATCH
PLANNED AT THIS TIME WITH UNCERTAINTY ABOUT AMOUNTS/LOCATION...BUT
MAY HAVE TO ISSUE LATER ONCE EVENT SHOWS ITS HAND.

BEYOND THE OVERNIGHT...SIGNIFICANT HEAVY RAIN/SVR WEATHER AGAIN
EXPECTED MONDAY NIGHT INTO TUESDAY AS DOLLY MOISTURE REMNANTS BEGIN
TO IMPACT THE REGION. ACTIVE WEATHER LIKELY TO CONTINUE LATE
WEDNESDAY INTO THURSDAY WITH NEXT SHORT WAVE TOPPING THE RIDGE
FOLLOWED BY UPPER RIDGING AND MAINLY DRY AND HOT WEATHER FROM FRIDAY
THROUGH SUNDAY.

&&

.AVIATION...27/18Z
CURRENT CONVECTIVE COMPLEX OVER NRN IA WILL CONTINUE MOVING ESE
EARLY THIS AFTERNOON. THE FORECAST BEYOND THE NEXT FEW HOURS IS
STILL UNCERTAIN AS FAR AS EXACTLY WHERE ADDITIONAL STORMS WILL
DEVELOP. THUNDERSTORMS MAY DEVELOP DURING PEAK HEATING ALONG AND
SOUTH OF HWY 30...AND/OR REDEVELOP ACROSS NRN IA OVERNIGHT...OR
BOTH. THIS UNCERTAINTY IN TIMING...AS WELL AS LOCATION...HAS LEAD TO
NO MENTION OF THUNDER BEYOND DEALING WITH STORMS THAT ARE ONGOING.
HAVE INCLUDED CB WORDING AFTER 00Z WITH FURTHER DETAILS ADDED ONCE
TIMING AND LOCATION BECOMES MORE CLEAR RATHER THAN ADDING THUNDER
FOR PROLONGED PERIODS WITH LOW CONFIDENCE.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...SEVERE THUNDERSTORM WATCH IN
EFFECT UNTIL 10 PM FOR ENTIRE CWA EXCEPT NORTHERN 2 TIERS OF
COUNTIES.

&&

AVIATION...MOYER
PUBLIC...KINNEY

Hazardous weather outlook, Jul 27, 4:25 PM CDT, 4 hours 49 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
425 PM CDT SUN JUL 27 2008

IAZ023>028-033>039-044>050-057>062-070>075-081>086-092>097-281100-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-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-
425 PM CDT SUN JUL 27 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND
SOUTHERN IOWA.

.DAY ONE...TONIGHT

SCATTERED TO WIDESPREAD THUNDERSTORMS WILL CONTINUE THIS EVENING
AND OVERNIGHT. THE MAIN THREATS WILL BE DAMAGING STRAIGHT LINE
WINDS TO 90 MPH...AND QUARTER SIZE HAIL. AN ISOLATED TORNADO IS
NOT OUT OF THE QUESTION THROUGH EARLY EVENING. LOCALLY HEAVY
RAINFALL COULD LEAD TO FLASH FLOODING...ESPECIALLY OVER SOUTHERN
IOWA...WHERE HEAVY RAIN FELL RECENTLY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE ARE VARIABLE CHANCES FOR THUNDERSTORMS THROUGHOUT MANY OF
THE NEXT 7 DAYS. AT THIS TIME THE GREATER CHANCES FOR
THUNDERSTORMS LOOK TO BE LATE MONDAY NIGHT...AND AGAIN TUESDAY.
CURRENTLY THE AREA IS IN A SLIGHT RISK FOR SEVERE WEATHER AGAIN
MONDAY NIGHT....WITH THE CHANCES FOR SEVERE WEATHER UNCERTAIN AT
THIS TIME FOR THE REMAINDER OF THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING AND OVERNIGHT.

IAZ004>007-015>017-281100-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
425 PM CDT SUN JUL 27 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN IOWA.

.DAY ONE...TONIGHT

SCATTERED THUNDERSTORMS ARE POSSIBLE WITH AN ISOLATED SEVERE STORM
NOT OUT OF THE QUESTION. THE MAIN THREAT WOULD BE STRAIGHT LINE
WINDS TO 60 MPH AND QUARTER SIZE HAIL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE ARE VARIABLE CHANCES FOR THUNDERSTORMS THROUGHOUT MANY OF
THE NEXT 7 DAYS. AT THIS TIME THE GREATER CHANCES FOR
THUNDERSTORMS LOOK TO BE LATE MONDAY NIGHT...AND AGAIN TUESDAY.
CURRENTLY THE AREA IS IN A SLIGHT RISK FOR SEVERE WEATHER AGAIN
MONDAY NIGHT....WITH THE CHANCES FOR SEVERE WEATHER UNCERTAIN AT
THIS TIME FOR THE REMAINDER OF THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED ON AN ISOLATED BASIS TONIGHT.

ALBRECHT/KINNEY

In the hours before

Local storm report, Jul 27, 7:54 PM CDT, 1 hour 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
754 PM CDT SUN JUL 27 2008

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

0747 PM     TSTM WND DMG     1 E ALTOONA             41.65N 93.46W
07/27/2008                   POLK               IA   AMATEUR RADIO

            14 INCH TREE DOWN.

&&

BF

Local storm report, Jul 27, 7:56 PM CDT, 1 hour 18 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE DES MOINES IA
756 PM CDT SUN JUL 27 2008

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

0445 PM     TSTM WND DMG     1 E ALTOONA             41.65N 93.46W
07/27/2008                   POLK               IA   AMATEUR RADIO

            14 INCH TREE DOWN.

&&

BF

Local storm report, Jul 27, 8:22 PM CDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
822 PM CDT SUN JUL 27 2008

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

0815 PM     HAIL             6 W MORAVIA             40.89N 92.93W
07/27/2008  E1.00 INCH       APPANOOSE          IA   LAW ENFORCEMENT

            EAST OF ICONIUM

&&

BF

Local storm report, Jul 27, 8:34 PM CDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
834 PM CDT SUN JUL 27 2008

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

0824 PM     HAIL             1 NW RATHBUN            40.82N 92.90W
07/27/2008  E1.75 INCH       APPANOOSE          IA   AMATEUR RADIO

            QUARTER TO GOLF BALL SIZE HAIL AT CORPS OF ENGINEERS
            RATHBUN LAKE OFFICE.

&&

PODRAZIK

Local storm report, Jul 27, 8:36 PM CDT, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
836 PM CDT SUN JUL 27 2008

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

0830 PM     HAIL             4 NE CENTERVILLE        40.77N 92.82W
07/27/2008  E1.25 INCH       APPANOOSE          IA   TRAINED SPOTTER

&&

RUSSELL

Local storm report, Jul 27, 8:50 PM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
850 PM CDT SUN JUL 27 2008

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

0844 PM     HAIL             E MOULTON               40.69N 92.67W
07/27/2008  E1.75 INCH       APPANOOSE          IA   TRAINED SPOTTER

&&

PODRAZIK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 7:28 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Davis, Monroe, Wapello	47 min
Jul 27, 7:40 PM CDT	Flash Flood Warning	DMX	Appanoose, Davis, Monroe, Wapello	8 hr
Jul 27, 7:47 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Lucas, Monroe, Wayne	10 min
Jul 27, 7:54 PM CDT	Tornado Warning	DMX	Appanoose, Lucas, Monroe	36 min
Jul 27, 8:00 PM CDT	River Flood Warning	DMX	Mahaska	38 hr
Jul 27, 8:27 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Davis	33 min
Jul 27, 8:29 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Lucas, Marion, Monroe, Wayne	46 min
Jul 27, 8:46 PM CDT	River Flood Warning	DMX	Appanoose	44 hr
Jul 27, 8:46 PM CDT	River Flood Warning	DMX	Appanoose, Wayne	44 hr
Jul 27, 10:04 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Hamilton, Story, Webster	41 min
Jul 27, 10:06 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Jasper, Polk, Story	39 min
Jul 27, 10:37 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Polk, Story	38 min
Jul 27, 10:39 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion, Polk, Warren	51 min
Jul 27, 10:56 PM CDT	Severe Thunderstorm Warning	DMX	Mahaska, Marion, Monroe	49 min
Jul 27, 11:05 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Webster	40 min
Jul 27, 11:12 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Jasper, Polk, Story	48 min
Jul 27, 11:15 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Davis, Monroe, Wapello	45 min
Jul 27, 11:20 PM CDT	Flash Flood Warning	DMX	Dallas, Jasper, Mahaska, Marion, Polk, Warren	4 hr
Jul 27, 11:28 PM CDT	Severe Thunderstorm Warning	DMX	Lucas, Mahaska, Marion, Monroe, Warren	47 min
Jul 27, 11:39 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Polk, Story	37 min
Jul 27, 11:45 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion, Polk, Warren	30 min
Jul 27, 11:54 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Lucas, Marion, Monroe	36 min
Jul 27, 11:59 PM CDT	Flash Flood Warning	DMX	Boone, Greene, Story	117 min
Jul 28, 12:24 AM CDT	Severe Thunderstorm Warning	DMX	Clarke, Lucas	38 min
Jul 28, 12:26 AM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Davis, Wayne	27 min
Jul 28, 1:06 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Dallas, Guthrie, Madison	39 min
Jul 28, 1:18 AM CDT	Flash Flood Warning	DMX	Adair, Appanoose, Audubon, Carroll, Clarke, Dallas and 10 more	6 hr
Jul 28, 1:46 AM CDT	Tornado Warning	DMX	Adair, Madison	29 min
Jul 28, 2:15 AM CDT	Severe Thunderstorm Warning	DMX	Clarke, Madison, Union	45 min
Jul 28, 2:23 AM CDT	River Flood Warning	DMX	Polk	26 hr
Jul 28, 2:35 AM CDT	River Flood Warning	DMX	Mahaska, Marion	53 hr
Jul 28, 3:03 AM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur	23 min
Jul 28, 4:49 AM CDT	Tornado Warning	DMX	Carroll, Crawford	41 min
Jul 28, 5:31 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Carroll, Crawford	44 min
Jul 28, 6:03 AM CDT	Severe Thunderstorm Warning	DMX	Crawford, Sac	42 min
Jul 28, 6:11 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Carroll, Crawford	49 min
Jul 28, 6:45 AM CDT	Severe Thunderstorm Warning	DMX	Carroll, Crawford	45 min
Jul 28, 6:47 AM CDT	River Flood Warning	DMX	Warren	30 hr
Jul 28, 7:13 AM CDT	Areal Flood Warning	DMX	Adair, Appanoose, Clarke, Dallas, Davis, Decatur and 8 more	12 hr
Jul 28, 9:27 AM CDT	River Flood Warning	DMX	Decatur	14 hr
Jul 28, 9:38 AM CDT	River Flood Warning	DMX	Polk	43 hr
Jul 28, 9:38 AM CDT	River Flood Warning	DMX	Dallas, Polk	29 hr
Jul 28, 9:38 AM CDT	River Flood Warning	DMX	Polk	48 hr
Jul 28, 9:38 AM CDT	River Flood Warning	DMX	Polk	48 hr
Jul 28, 9:38 AM CDT	River Flood Warning	DMX	Madison, Warren	4 days
Jul 28, 9:38 AM CDT	River Flood Warning	DMX	Dallas, Guthrie	19 hr
Jul 28, 1:07 PM CDT	River Flood Warning	DMX	Madison, Warren	35 hr

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; radar from the NEXRAD Level II archive.