Alert archive / Iowa / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 146, NWS Des Moines, IA

June 4, 2008Sac County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jun 4, 2008, 11:13 PM CDT for Sac County, Iowa. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 4, 2008, 11:13 PM CDT (04:13 UTC)
Expired: Jun 5, 2008, 12:00 AM CDT
In force: 47 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon

County Sac County, IA

The radar

The Des Moines radar (KDMX), 144 km from the middle of the area, began a volume at 04:12 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 4.2 hours before the alert went out and 159 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: 2024 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 774 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 224 m²/s²
0-3 km storm-relative helicity: 331 m²/s²
Significant tornado parameter: 3.7
Supercell composite: 18.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KDMX 050413
SVRDMX
IAC161-050500-
/O.NEW.KDMX.SV.W.0146.080605T0413Z-080605T0500Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1113 PM CDT WED JUN 4 2008

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SAC COUNTY IN WEST CENTRAL IOWA...

* UNTIL MIDNIGHT CDT.

* AT 1107 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 7 MILES
  NORTHWEST OF ODEBOLT...OR NEAR IDA GROVE...AND MOVING NORTHEAST AT
  39 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ODEBOLT BY 1115 PM CDT...
  SCHALLER BY 1120 PM CDT...
  EARLY BY 1125 PM CDT...
  NEMAHA AND SAC CITY BY 1135 PM CDT...

MOVE TO AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS. IF YOU LIVE IN A
MOBILE HOME...SEEK SHELTER IN A STURDY BUILDING.

LAT...LON 4257 9500 4256 9499 4256 9492 4221 9495
      4221 9518 4221 9534 4247 9534 4247 9539
      4248 9540 4256 9540
TIME...MOT...LOC 0413Z 246DEG 34KT 4239 9531

$$

MOYER

2 follow-up statements

000 
WWUS53 KDMX 050441
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1141 PM CDT WED JUN 4 2008

IAC161-050500-
/O.CON.KDMX.SV.W.0146.000000T0000Z-080605T0500Z/
SAC IA-
1141 PM CDT WED JUN 4 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR CENTRAL SAC COUNTY...

AT 1140 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR EARLY...OR 15 MILES
SOUTH OF STORM LAKE...MOVING EAST AT 27 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  NEMAHA BY 1150 PM CDT...
  SAC CITY BY 1155 PM CDT...

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 4256 9525 4257 9503 4257 9500 4256 9499
      4256 9492 4228 9495 4225 9515 4226 9526
      4246 9527
TIME...MOT...LOC 0441Z 250DEG 23KT 4243 9514

$$

MOYER

000 
WWUS53 KDMX 050457
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1157 PM CDT WED JUN 4 2008

IAC161-050507-
/O.EXP.KDMX.SV.W.0146.000000T0000Z-080605T0500Z/
SAC IA-
1157 PM CDT WED JUN 4 2008

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SAC COUNTY WILL EXPIRE
AT MIDNIGHT CDT...

AT 1154 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE WEAKENED...AND NO
LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. THEREFORE...THE
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE.

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 TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT THURSDAY MORNING
FOR IOWA.

LAT...LON 4256 9525 4257 9503 4257 9500 4256 9499
      4256 9492 4228 9495 4225 9515 4226 9526
      4246 9527
TIME...MOT...LOC 0457Z 250DEG 23KT 4246 9501

$$

MOYER

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 Jun 4, 3:14 PM CDT, 7 hours 59 minutes earlier.

Area forecast discussion, Jun 4, 3:14 PM CDT, 7 hours 59 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE DES MOINES IA
314 PM CDT WED JUN 4 2008

...UPDATED AVIATION DISCUSSION AND WATCHES IN EFFECT...

.SHORT TERM/TONIGHT...
FOCUS TONIGHT REMAINS ON SEVERE AND HEAVY RAIN POTENTIAL. WARM FRONT
HAS LIFTED SLOWLY NORTH TO NEAR THE IA/MO BORDER. GREATEST
INSTABILITY CURRENTLY IS TO THE SOUTHWEST IN NORTH CENTRAL KANSAS
AND SOUTHEAST NEBRASKA. LACK OF 0-3 KM CAPE IN SOUTHERN IOWA NEAR
THE WARM FRONT SUGGESTS THAT SFC BASED CONVECTION IS STILL SEVERAL
HOURS OFF IN IA. ONCE CONVECTION DOES BEGIN ALL MODES OF SVR WX ARE
POSSIBLE NEAR THE FRONTAL BOUNDARY. LATER TONIGHT THE LOW LEVEL JET
WILL FOCUS INTO THE STATE AND WILL CONTINUE TO FUEL THUNDERSTORMS
NEAR THE WARM FRONT AS IT LIFTS NORTH OVER IA. AREAS OF HEAVY
RAINFALL REMAIN POSSIBLE BUT THE FORWARD PROPAGATION OF THE STORMS
SHOULD LIMIT POTENTIAL. WILL EXPAND FLASH FLOOD WATCH NORTH TO
HIGHWAY 20 WHERE 1 TO 2 INCHES OF RAINFALL IN A SHORT PERIOD WILL
CAUSE HYDROLOGIC ISSUES GIVEN RECENT HEAVY RAINS.

.LONG TERM /THURSDAY-WEDNESDAY/...
ACTIVE PATTERN CONTINUES THROUGH MUCH OF THE FORECAST PERIOD.
NUMEROUS VIGOROUS WAVES WILL MOVE THROUGH THE FLOW DURING THE PERIOD
WHILE THE MIDWEST REMAINS CONNECTED TO THE MIDWEST. ONGOING ELEVATED
CONVECTION LIKELY ONGOING AT THE START OF THE PERIOD IN ADVANCED OF
A WARM FRONT LIFTING THROUGH THE STATE. MARGINAL SEVERE WX AND
LOCALLY HEAVY RAINFALL POSSIBLE THURSDAY MORNING HOWEVER THE BIG
SHOW STILL ON TARGET FOR THURSDAY EVENING AND OVERNIGHT. THE PRIMARY
SEVERE EVENT LIKELY TO BEGIN AFTER 00Z THURSDAY EVENING THEN TURNING
INTO A COMBINATION SEVERE AND HEAVY RAIN EVENT AFTER MIDNIGHT.
TONIGHTS RAINFALL WILL LIKELY BE A PRIMER FOR THURSDAY NIGHT.
HYDROLOGY CONCERNS WILL GREATLY INCREASE IF CENTRAL IOWA GETS ONE
INCH PLUS TONIGHT WITH THE POTENTIAL FOR A NORTH TO SOUTH 2 TO 4
INCH BAND THURSDAY NIGHT. ALL MODES FOR SEVERE WEATHER ARE LIKELY
WITH THE TORNADIC POTENTIAL ENHANCED WEST OF INTERSTATE 35. PWATS
APPROACHING 2 INCHES WITH A 60 KT LOW LEVEL JET FEEDING INTO THE
REGION WILL PROMOTE THE POTENTIAL FOR EFFICIENT RAIN PRODUCERS.
STORM MOVEMENT ALONG THE BOUNDARY SUGGESTS TRAINING POTENTIAL.

THUNDERSTORMS WILL LINGER FRIDAY MORNING THEN ANOTHER CHANCE OVER
THE EAST IN THE AFTERNOON. A BRIEF BREAK FRIDAY NIGHT AND EARLY
SATURDAY THEN THE NEXT SYSTEM BRINGS THUNDERSTORM POTENTIAL BACK BY
SATURDAY AFTERNOON AND NIGHT. POSSIBLE THAT THE WARM FRONT WILL HANG
UP OVER IOWA LEADING TO A PROLONGED THUNDERSTORM CHANCE THROUGH
MONDAY BEFORE FINALLY PUSHING TO THE NORTH BY MIDWEEK.

&&

.AVIATION 05/06Z...
THUNDERSTORMS CONTINUE OVER MUCH OF THE AREA...AFFECTING KDSM AND
KMCW...AND VERY NEAR KALO AT THIS TIME. KOTM REMAINS SOUTHEAST OF
THE ACTION BUT WILL PROBABLY GET HIT AT SOME TIME DURING THE EARLY
MORNING HOURS. THUNDERSTORMS NOT EXPECTED TO END UNTIL CLOSE TO
12Z...AFTER WHICH MVFR CIGS AND PERHAPS SOME BR/HZ WILL LINGER INTO
THE MID/LATE MORNING HOURS. ANOTHER ROUND OF THUNDERSTORMS WILL
ENTER THE PICTURE THURS EVENING/NIGHT.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
TORNADO WATCH TIL 10Z THURSDAY ALONG AND SOUTH OF HIGHWAY 3. FLASH
FLOOD WATCH TIL 12Z THURSDAY ALONG AND SOUTH OF HIGHWAY 20.

SHORT TERM...REV
LONG TERM...DONAVON
AVIATION...LEE

Hazardous weather outlook, Jun 4, 10:36 PM CDT, 37 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE DES MOINES IA
1036 PM CDT WED JUN 4 2008

IAZ044>050-057>062-070>075-081>086-092>097-051115-
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-
1036 PM CDT WED JUN 4 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...TONIGHT

THUNDERSTORMS WILL BE LIKELY TONIGHT. LARGE HAIL...DAMAGING WIND
AND ISOLATED TORNADOES WILL BE POSSIBLE. IN ADDITION...LOCALLY
HEAVY RAINFALL WILL LIKELY CAUSE SOME FLASH FLOODING AND MORE
RIVER FLOODING. A TORNADO WATCH IS IN EFFECT UNTIL MIDNIGHT CDT
AND A FLASH FLOOD WATCH IS IN EFFECT THROUGH TONIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

PERIODS OF THUNDERSTORMS WILL CONTINUE INTO FRIDAY. LARGE
HAIL...DAMAGING WIND AND ISOLATED TORNADOES WILL BE POSSIBLE. A
SIGNIFICANT SEVERE WEATHER OUTBREAK IS POSSIBLE THURSDAY AFTERNOON
AND NIGHT. THUNDERSTORM CHANCES WILL RETURN SATURDAY AFTERNOON THROUGH
SUNDAY AND POSSIBLY INTO EARLY NEXT WEEK. IN ADDITION...LOCALLY
HEAVY RAINFALL WILL LIKELY CAUSE SOME FLASH FLOODING AND MORE
RIVER FLOODING INTO NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS LIKELY FROM TIME TO TIME THROUGH THE END OF
THE WEEK.

IAZ004>007-015>017-023>028-033>039-051115-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-
1036 PM CDT WED JUN 4 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...TONIGHT

THUNDERSTORMS WILL BE LIKELY TONIGHT. LARGE HAIL...DAMAGING WIND
AND ISOLATED TORNADOES WILL BE POSSIBLE. IN ADDITION...LOCALLY
HEAVY RAINFALL WILL LIKELY CAUSE SOME FLASH FLOODING AND MORE
RIVER FLOODING. A FLASH FLOOD WATCH IS IN EFFECT THROUGH TONIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

PERIODS OF THUNDERSTORMS WILL CONTINUE INTO FRIDAY. LARGE
HAIL...DAMAGING WIND AND ISOLATED TORNADOES WILL BE POSSIBLE. A
SIGNIFICANT SEVERE WEATHER OUTBREAK IS POSSIBLE THURSDAY AFTERNOON
AND NIGHT. THUNDERSTORM CHANCES WILL RETURN SATURDAY AFTERNOON THROUGH
SUNDAY AND POSSIBLY INTO EARLY NEXT WEEK. IN ADDITION...LOCALLY
HEAVY RAINFALL WILL LIKELY CAUSE SOME FLASH FLOODING AND MORE
RIVER FLOODING INTO NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS LIKELY FROM TIME TO TIME THROUGH THE END OF
THE WEEK.

LEE

In the hours before

Local storm report, Jun 4, 10:27 PM CDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1027 PM CDT WED JUN 04 2008

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

0943 PM     TORNADO          4 SSW CRESTON AIRPORT   40.97N 94.38W
06/04/2008                   UNION              IA   BROADCAST MEDIA

            SEVERAL TREES AND POWERLINES DOWN NEAR THE INTERSECTION
            OF 230TH AND HI AND DRY ROAD.

1001 PM     FUNNEL CLOUD     2 E AFTON               41.03N 94.16W
06/04/2008                   UNION              IA   LAW ENFORCEMENT

1010 PM     HAIL             LORIMOR                 41.13N 94.06W
06/04/2008  E1.00 INCH       UNION              IA   LAW ENFORCEMENT

1021 PM     TORNADO          3 NNE THAYER            41.07N 94.02W
06/04/2008                   CLARKE             IA   LAW ENFORCEMENT

&&

PODRAZIK

Local storm report, Jun 4, 10:36 PM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1036 PM CDT WED JUN 04 2008

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

1019 PM     HAIL             1 SSW LORIMOR           41.11N 94.06W
06/04/2008  E2.75 INCH       UNION              IA   LAW ENFORCEMENT

            HIGHWAY 69 AND 130TH STREET.

1026 PM     HAIL             3 SW TRURO              41.18N 93.89W
06/04/2008  M1.00 INCH       MADISON            IA   LAW ENFORCEMENT

1030 PM     HAIL             TRURO                   41.21N 93.85W
06/04/2008  E1.00 INCH       MADISON            IA   TRAINED SPOTTER

&&

PODRAZIK

Local storm report, Jun 4, 10:42 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1042 PM CDT WED JUN 04 2008

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

1033 PM     TORNADO          1 SSW MURRAY            41.03N 93.96W
06/04/2008                   CLARKE             IA   STORM CHASER

&&

BSMALL

Local storm report, Jun 4, 10:50 PM CDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1050 PM CDT WED JUN 04 2008

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

1043 PM     FLASH FLOOD      CRESTON                 41.06N 94.36W
06/04/2008                   UNION              IA   LAW ENFORCEMENT

            CHERRY STREET NORTH OF CRESTON CLOSED DUE TO HIGH WATER.

&&

MRUSSELL

Local storm report, Jun 4, 10:51 PM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1051 PM CDT WED JUN 04 2008

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

1044 PM     HAIL             2 ESE EAST PERU         41.21N 93.90W
06/04/2008  M1.75 INCH       MADISON            IA   LAW ENFORCEMENT

&&

PODRAZIK

Local storm report, Jun 4, 10:52 PM CDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1052 PM CDT WED JUN 04 2008

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

1025 PM     FLASH FLOOD      1 ENE FORT DODGE        42.51N 94.16W
06/04/2008                   WEBSTER            IA   TRAINED SPOTTER

            SPOTTER REPORTS MAJOR STREET FLOODING IN FORT DODGE. UP
            TO 3 FEET OF WATER ON SOME ROADS...SOME STREETS
            IMPASSIBLE.

&&

LEE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 7:30 PM CDT	Tornado Warning	DMX	Clarke, Union	30 min
Jun 4, 7:33 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Cass	57 min
Jun 4, 7:41 PM CDT	Tornado Warning	DMX	Adams, Taylor	49 min
Jun 4, 8:00 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Madison, Union, Warren	31 min
Jun 4, 8:25 PM CDT	Flash Flood Warning	DMX	Adams, Union	9 hr
Jun 4, 8:27 PM CDT	Tornado Warning	DMX	Adams	48 min
Jun 4, 8:50 PM CDT	Tornado Warning	DMX	Ringgold, Taylor, Union	55 min
Jun 4, 9:12 PM CDT	Severe Thunderstorm Warning	DMX	Sac	48 min
Jun 4, 9:15 PM CDT	Tornado Warning	DMX	Adams	14 min
Jun 4, 9:38 PM CDT	Tornado Warning	DMX	Clarke, Union	52 min
Jun 4, 9:48 PM CDT	Tornado Warning	DMX	Union	16 min
Jun 4, 10:04 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Hardin	41 min
Jun 4, 10:10 PM CDT	Severe Thunderstorm Warning	DMX	Madison, Warren	50 min
Jun 4, 10:22 PM CDT	Severe Thunderstorm Warning	DMX	Adams, Cass	53 min
Jun 4, 10:23 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Webster, Wright	41 min
Jun 4, 10:28 PM CDT	Tornado Warning	DMX	Clarke, Madison, Warren	47 min
Jun 4, 10:44 PM CDT	Flash Flood Warning	DMX	Clarke, Madison, Warren	6 hr
Jun 4, 10:47 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	38 min
Jun 4, 10:52 PM CDT	Flash Flood Warning	DMX	Adair, Cass	11 hr
Jun 4, 10:58 PM CDT	Severe Thunderstorm Warning	DMX	Madison, Warren	47 min
Jun 4, 11:08 PM CDT	Severe Thunderstorm Warning	DMX	Hardin	52 min
Jun 4, 11:10 PM CDT	Flash Flood Warning	DMX	Hamilton, Hardin, Webster	6 hr
Jun 4, 11:10 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Cass, Taylor, Union	50 min
Jun 4, 11:12 PM CDT	Flash Flood Warning	DMX	Franklin, Humboldt, Wright	6 hr
Jun 4, 11:34 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Clarke, Madison, Union	41 min
Jun 4, 11:45 PM CDT	Severe Thunderstorm Warning	DMX	Franklin, Wright	45 min
Jun 5, 12:11 AM CDT	Flash Flood Warning	DMX	Butler	6 hr
Jun 5, 12:17 AM CDT	Severe Thunderstorm Warning	DMX	Madison, Warren	43 min
Jun 5, 12:18 AM CDT	Severe Thunderstorm Warning	DMX	Butler	42 min
Jun 5, 12:33 AM CDT	Areal Flood Advisory	DMX	Emmet, Kossuth, Palo Alto	4 hr
Jun 5, 12:35 AM CDT	Areal Flood Advisory	DMX	Cerro Gordo, Hancock, Winnebago, Worth	4 hr
Jun 5, 12:35 AM CDT	Severe Thunderstorm Warning	DMX	Adams, Taylor	40 min
Jun 5, 12:48 AM CDT	Areal Flood Advisory	DMX	Dallas, Madison, Polk, Warren	4 hr
Jun 5, 12:50 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion, Polk, Warren	40 min
Jun 5, 12:59 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Polk, Story	46 min
Jun 5, 1:05 AM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Grundy	40 min
Jun 5, 1:14 AM CDT	Tornado Warning	DMX	Jasper, Marshall, Story	31 min
Jun 5, 1:19 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Madison, Ringgold, Union	41 min
Jun 5, 1:39 AM CDT	Areal Flood Advisory	DMX	Black Hawk, Bremer	4 hr
Jun 5, 1:40 AM CDT	Severe Thunderstorm Warning	DMX	Poweshiek, Tama	35 min
Jun 5, 1:44 AM CDT	Flash Flood Warning	DMX	Adams, Ringgold, Taylor, Union	6 hr
Jun 5, 1:48 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall	11 min
Jun 5, 1:51 AM CDT	Severe Thunderstorm Warning	DMX	Ringgold, Taylor	39 min
Jun 5, 2:02 AM CDT	Severe Thunderstorm Warning	DMX	Clarke, Madison, Union, Warren	43 min
Jun 5, 2:09 AM CDT	Flash Flood Warning	DMX	Black Hawk	6 hr
Jun 5, 2:12 AM CDT	River Flood Warning	DMX	Humboldt	39 hr
Jun 5, 2:12 AM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur	43 min
Jun 5, 2:26 AM CDT	Severe Thunderstorm Warning	DMX	Clarke, Lucas, Marion, Warren	49 min
Jun 5, 2:31 AM CDT	River Flood Warning	DMX	Madison, Warren	11 days
Jun 5, 2:33 AM CDT	Tornado Warning	DMX	Clarke, Lucas	21 min
Jun 5, 3:43 AM CDT	River Flood Warning	DMX	Webster	24 hr
Jun 5, 4:17 AM CDT	Flash Flood Watch	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more	24 hr
Jun 5, 4:45 AM CDT	Areal Flood Warning	DMX	Madison	12 hr
Jun 5, 4:50 AM CDT	Severe Thunderstorm Warning	DMX	Mahaska, Wapello	25 min
Jun 5, 4:51 AM CDT	River Flood Warning	DMX	Emmet	23 hr
Jun 5, 4:51 AM CDT	River Flood Warning	DMX	Palo Alto	5 hr
Jun 5, 4:51 AM CDT	River Flood Warning	DMX	Hamilton, Webster	25 hr
Jun 5, 4:51 AM CDT	River Flood Warning	DMX	Madison, Warren	66 hr
Jun 5, 4:51 AM CDT	River Flood Warning	DMX	Cerro Gordo, Floyd, Worth	29 hr
Jun 5, 4:51 AM CDT	River Flood Warning	DMX	Black Hawk, Bremer, Butler	36 hr
Jun 5, 4:51 AM CDT	River Flood Warning	DMX	Black Hawk	15 days
Jun 5, 4:51 AM CDT	River Flood Warning	DMX	Marshall	13 days
Jun 5, 5:19 AM CDT	Areal Flood Warning	DMX	Butler, Franklin, Hamilton, Hardin, Webster, Wright	25 hr
Jun 5, 5:38 AM CDT	River Flood Warning	DMX	Taylor	4 hr
Jun 5, 5:45 AM CDT	Areal Flood Warning	DMX	Adams, Union	49 hr
Jun 5, 7:45 AM CDT	River Flood Warning	DMX	Lucas	5 days
Jun 5, 8:23 AM CDT	River Flood Warning	DMX	Decatur	4 days
Jun 5, 10:02 AM CDT	River Flood Warning	DMX	Black Hawk, Butler	10 days
Jun 5, 4:05 PM CDT	River Flood Warning	DMX	Black Hawk	13 days
Jun 5, 4:32 PM CDT	River Flood Warning	DMX	Warren	17 hr
Jun 5, 4:32 PM CDT	River Flood Warning	DMX	Mahaska, Marion	11 hr
Jun 5, 4:34 PM CDT	River Flood Warning	DMX	Polk	40 hr
Jun 5, 4:44 PM CDT	Areal Flood Warning	DMX	Madison	11 hr
Jun 5, 6:01 PM CDT	River Flood Warning	DMX	Wapello	15 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.