Alert archive / Iowa / Flash Flood Warnings in 2004

Flash Flood Warning 17, NWS Des Moines, IA

May 24, 2004Boone County, Iowa

NWS Des Moines, IA issued this flash flood warning at May 24, 2004, 5:31 PM CDT for Boone County, Iowa. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 24, 2004, 5:31 PM CDT (22:31 UTC)
Expired: May 24, 2004, 11:30 PM CDT
In force: 6 hr
Issued by: NWS Des Moines, IA
Area: Counties, with a storm outline in the text

County Boone County, IA

The radar

The Des Moines radar (KDMX), 41 km from the middle of the area, began a volume at 22:33 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 flash flood 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 12:00Z, 10.5 hours before the alert went out and 221 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 731 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 210 m²/s²
0-3 km storm-relative helicity: 289 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KDMX 242232
FFWDMX
IAC015-250430-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
531 PM CDT MON MAY 24 2004

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BOONE COUNTY IN CENTRAL IOWA

* UNTIL 1130 PM

* AT 507 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH FLASH FLOOD PRODUCING RAINS IN THE WARNING AREA.

* THE GROUND IS ALREADY SATURATED BY RAINFALL...AND ADDITIONAL RAIN
  WILL PRODUCE SIGNIFICANT RUNOFF INTO SWOLLEN WATERWAYS.   
THUNDERSTORMS ARE EXPECTED TO PRODUCE RAINFALL RATES OF ONE TO TWO   
INCHES PER HOUR. THIS WILL PRODUCE FLASH FLOODING ALONG CREEKS AND 
STREAMS.

OTHER WARNING LOCATIONS INCLUDE...
BERKLEY...BOONE...BOONE MUNICIPAL AIRPORT...BOXHOLM...FRASER...
LUTHER...OGDEN AND PILOT MOUND

FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER
COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF
FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD.

LAT...LON 4220 9376 4188 9375 4187 9412 4219 9416

$$

FORSTER

2 follow-up statements

000 
WGUS73 KDMX 242255
FFSDMX
IAC009-015-027-049-073-077-121-153-250000-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
550 PM CDT MON MAY 24 2004

...A FLASH FLOOD WARNING CONTINUES FOR
DALLAS...MADISON UNTIL 11 PM
CARROLL...GREENE...AUDUBON...GUTHRIE UNTIL 1115 PM
BOONE UNTIL 1130 PM
POLK UNTIL 1145 PM

AT 550 PM...WEATHER SPOTTERS REPORTED FLASH FLOODING IN 
AUDUBON...DALLAS...MADISON...AND CARROLL COUNTIES THIS EVENING.  
ADDITIONAL HEAVY RAINS WILL CONTINUE.

THE GROUND IS ALREADY SATURATED BY RAINFALL IN THE WARNING AREA...AND
ADDITIONAL RAIN WILL CONTINUE TO PRODUCE SIGNIFICANT RUNOFF INTO
SWOLLEN WATERWAYS. THUNDERSTORMS ARE EXPECTED TO PRODUCE RAINFALL 
RATES OF ONE TO TWO  INCHES PER HOUR. THIS WILL PRODUCE FLASH 
FLOODING ALONG THE SMALL STREAMS AND CREEKS.

FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER
COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF
FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD.

LAT...LON 4185 9336 4154 9337 4151 9383 4121 9386
          4118 9421 4151 9433 4155 9503 4219 9508
          4219 9377 4187 9374

$$

FORSTER

000 
WGUS73 KDMX 250000
FFSDMX
IAC009-015-027-049-073-077-121-153-250100-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
700 PM CDT MON MAY 24 2004

...A FLASH FLOOD WARNING CONTINUES FOR
DALLAS...MADISON UNTIL 11 PM
CARROLL...GREENE...AUDUBON...GUTHRIE UNTIL 1115 PM
BOONE UNTIL 1130 PM
POLK UNTIL 1145 PM

AT 655 PM...WEATHER SPOTTERS REPORTED FLASH FLOODING IN 
AUDUBON...BOONE...DALLAS...MADISON...POLK AND CARROLL COUNTIES THIS 
EVENING.  ADDITIONAL HEAVY RAINS WILL CONTINUE.

THE GROUND IS ALREADY SATURATED BY RAINFALL IN THE WARNING AREA...AND
ADDITIONAL RAIN WILL CONTINUE TO PRODUCE SIGNIFICANT RUNOFF INTO
SWOLLEN WATERWAYS. THUNDERSTORMS ARE EXPECTED TO PRODUCE RAINFALL 
RATES OF ONE TO TWO  INCHES PER HOUR. THIS WILL PRODUCE FLASH 
FLOODING ALONG THE SMALL STREAMS AND CREEKS.

FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER
COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF
FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD.

LAT...LON 4185 9336 4154 9337 4151 9383 4121 9386
          4118 9421 4151 9433 4155 9503 4219 9508
          4219 9377 4187 9374

$$

FORSTER

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at May 24, 3:17 PM CDT, 2 hours 14 minutes earlier.

Area forecast discussion, May 24, 3:17 PM CDT, 2 hours 14 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
317 PM CDT MON MAY 24 2004

.DISCUSSION...
SIGNIFICANT EVENT IN SHORT TERM WITH PDS WATCHES AS ELEMENTS HAVE
COME TOGETHER FOR ACTIVE WEATHER NIGHT.  PLENTY OF MOISTURE...
INSTABILITY AND SHEAR AVAILABLE FOR ALL MODES OF SEVERE WEATHER.
INTENSE RAINFALL RATES AND LOW GUIDANCE FROM PREVIOUS HEAVY RAINS
ALSO PRESENT A FLASH FLOOD POTENTIAL.  HAVE LEFT FLOOD HEADLINES
ALONE ALONG WITH VARIOUS CONVECTIVE WATCHES.

SYSTEM TO BLOW THROUGH TONIGHT WITH SUBSIDENCE AND SFC HIGH TO
PROVIDE CALM WEATHER INTO MID WEEK.  NEXT WESTERN TROF TO DEVELOP BY
LATE IN THE WEEK WITH INCREASING CHANCES OF CONVECTION INTO NEXT
WEEKEND.  WL ONCE AGAIN HAVE TO WATCH HYDRO AS DEEP MOIST SOUTHERLY
FLOW DEVELOPS.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...FLOOD WATCH ENTIRE CWA UNTIL 4 AM
TUESDAY.

&&

COGIL

Hazardous weather outlook, May 24, 7:01 AM CDT, 10 hours 30 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
701 AM CDT MON MAY 24 2004

...SEVERE WEATHER OUTBREAK EXPECTED ACROSS SOUTHERN IOWA THIS
AFTERNOON AND EVENING...

IAZ081>086-092>097-251100-
ADAMS-APPANOOSE-CLARKE-DAVIS-DECATUR-LUCAS-MONROE-RINGGOLD-TAYLOR-
UNION-WAPELLO-WAYNE-
701 AM CDT MON MAY 24 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN IOWA...SOUTH OF
HIGHWAY 34.

.DAY ONE...TODAY AND TONIGHT

THERE IS A HIGH RISK OF SEVERE WEATHER ACROSS SOUTHERN IOWA FROM
MID AFTERNOON THROUGH THE EVENING HOURS. STRONG WIND SHEAR AND
INSTABILITY WILL SUPPORT SUPERCELL THUNDERSTORMS DURING THE
AFTERNOON AND EARLY EVENING...WITH VERY LARGE HAIL AND DAMAGING
STRAIGHT LINE WINDS. TORNADOES ARE ALSO POSSIBLE DURING THIS
TIME FRAME...A FEW POTENTIALLY STRONG. THE MAIN AREA FOR THESE
THREATS FROM MID AFTERNOON INTO THE EARLY EVENING IS ALONG AND
SOUTHWEST OF A LINE FROM CORNING TO CRESTON TO MOUNT AYR. THEN
DURING THE EVENING HOURS...A THUNDERSTORM COMPLEX IS EXPECTED
TO EVOLVE AND RACE EASTWARD ACROSS SOUTHERN IOWA...WITH THE MAIN
THREAT OF VERY STRONG DAMAGING STRAIGHT LINE WINDS. SOME LOCATIONS
WILL RECEIVE 1 TO 2 INCHES OF RAINFALL...WITH ISOLATED 3 INCH
AMOUNTS. ISOLATED FLASH FLOODING IS POSSIBLE TONIGHT GIVEN THE
SATURATED SOIL CONDITIONS. HEAVY RAINS WILL ALSO AGGRAVATE THE
ONGOING RIVER AND STREAM FLOODING SITUATION.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THUNDERSTORMS ARE EXPECTED AT VARIOUS TIMES FROM FRIDAY INTO THE
WEEKEND. SEVERE WEATHER IS POSSIBLE...BUT IT IS TOO EARLY TO
DETERMINE SPECIFIC LOCATIONS...THREATS...AND TIMING.

.SPOTTER ACTIVATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED THIS AFTERNOON AND TONIGHT.

IAZ044>050-057>062-070>075-251100-
ADAIR-AUDUBON-BOONE-CARROLL-CASS-CRAWFORD-DALLAS-GREENE-GUTHRIE-
JASPER-MADISON-MAHASKA-MARION-MARSHALL-POLK-POWESHIEK-STORY-TAMA-
WARREN-
701 AM CDT MON MAY 24 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL IOWA...BETWEEN THE
HIGHWAY 30 AND HIGHWAY 34 CORRIDORS.

.DAY ONE...TODAY AND TONIGHT

THERE IS A MODERATE RISK OF SEVERE WEATHER ACROSS CENTRAL IOWA FROM
MID AFTERNOON THROUGH THE EVENING HOURS. WIND SHEAR AND INSTABILITY
WILL SUPPORT SOME SUPERCELL THUNDERSTORMS INITIALLY...WITH LARGE
HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES POSSIBLE. THE MAIN
AREA FOR THESE THREATS WILL BE LOCATIONS FROM CARROLL AND DENISON...
SOUTH TO ATLANTIC. THEN DURING THE EVENING...A THUNDERSTORM COMPLEX
IS EXPECTED TO RACE EASTWARD ACROSS THE AREA...WITH THE MAIN THREAT
OF VERY STRONG DAMAGING STRAIGHT LINE WINDS. SOME LOCATIONS WILL
RECEIVE 1 TO 2 INCHES OF RAINFALL...WITH ISOLATED 3 INCH AMOUNTS.
ISOLATED FLASH FLOODING IS POSSIBLE TONIGHT GIVEN THE SATURATED SOIL
CONDITIONS. HEAVY RAINS WILL ALSO AGGRAVATE THE ONGOING RIVER AND
STREAM FLOODING SITUATION.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THUNDERSTORMS ARE EXPECTED AT VARIOUS TIMES FROM FRIDAY INTO THE
WEEKEND. SEVERE WEATHER IS POSSIBLE...BUT IT IS TOO EARLY TO
DETERMINE SPECIFIC LOCATIONS...THREATS...AND TIMING.

.SPOTTER ACTIVATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED THIS AFTERNOON AND TONIGHT.

IAZ004>007-015>017-023>028-033>039-251100-
BLACK HAWK-BREMER-BUTLER-CALHOUN-CERRO GORDO-EMMET-FRANKLIN-GRUNDY-
HAMILTON-HANCOCK-HARDIN-HUMBOLDT-KOSSUTH-PALO ALTO-POCAHONTAS-SAC-
WEBSTER-WINNEBAGO-WORTH-WRIGHT-
701 AM CDT MON MAY 24 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN IOWA...NORTH OF
HIGHWAY 30.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE EXPECTED TO MOVE INTO NORTHWEST IOWA DURING
THE EARLY AFTERNOON...THEN MOVE EAST ACROSS NORTHERN IOWA
DURING THE LATE AFTERNOON AND EVENING HOURS. ISOLATED SEVERE
THUNDERSTORMS ARE POSSIBLE...WITH THE THREATS BEING LARGE HAIL AND
ISOLATED DAMAGING STRAIGHT LINE WIND GUSTS. SOME THUNDERSTORMS WILL
PRODUCE RAINFALL AMOUNTS OF ONE HALF TO ONE INCH...WHICH COULD
AGGRAVATE THE ONGOING FLOOD SITUATION ON MANY RIVERS AND STREAMS IN
NORTHERN IOWA.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THUNDERSTORMS ARE EXPECTED AT VARIOUS TIMES FROM FRIDAY INTO THE
WEEKEND. SEVERE WEATHER IS POSSIBLE...BUT IT IS TOO EARLY TO
DETERMINE SPECIFIC LOCATIONS...THREATS...AND TIMING.

.SPOTTER ACTIVATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND TONIGHT.

KINNEY

In the hours before

Local storm report, May 24, 4:18 PM CDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
418 PM CDT MON MAY 24 2004

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

0406 PM     HAIL             4 SW CLARE              42.55N 94.40W
05/24/2004  0.88 INCH        WEBSTER            IA   LAW ENFORCEMENT

&&

BF

Local storm report, May 24, 5:03 PM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
503 PM CDT MON MAY 24 2004

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

0458 PM     TORNADO          6 S EARLHAM             41.41N 94.12W
05/24/2004                   MADISON            IA   LAW ENFORCEMENT

&&

GRAMS

Local storm report, May 24, 5:15 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
515 PM CDT MON MAY 24 2004

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

0511 PM     FLASH FLOOD      2 S DE SOTO             41.51N 94.01W
05/24/2004                   DALLAS             IA   TRAINED SPOTTER

            HIGHWAY 169 FLOODED ALONG DALLAS AND MADISON COUNTY
            LINES.

&&

JAJ

Local storm report, May 24, 5:24 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
524 PM CDT MON MAY 24 2004

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

0522 PM     HAIL             1 NW DE SOTO            41.54N 94.02W
05/24/2004  1.75 INCH        DALLAS             IA   LAW ENFORCEMENT

&&

GRAMS

Local storm report, May 24, 5:27 PM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
527 PM CDT MON MAY 24 2004

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

0526 PM     HAIL             2 S DE SOTO             41.51N 94.00W
05/24/2004  1.00 INCH        DALLAS             IA   TRAINED SPOTTER

&&

GRAMS

Local storm report, May 24, 5:29 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
529 PM CDT MON MAY 24 2004

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

0525 PM     FLASH FLOOD      KIMBALLTON              41.63N 95.07W
05/24/2004                   AUDUBON            IA   LAW ENFORCEMENT

            WATER OUT OF BANKS

&&

JAJ

The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 2:26 PM CDT	Severe Thunderstorm Warning	DMX	Sac	34 min
May 24, 2:34 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Cass, Guthrie	41 min
May 24, 2:47 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	28 min
May 24, 2:49 PM CDT	Severe Thunderstorm Warning	DMX	Sac	11 min
May 24, 2:58 PM CDT	Severe Thunderstorm Warning	DMX	Audubon	32 min
May 24, 3:00 PM CDT	Severe Thunderstorm Warning	DMX	Sac	45 min
May 24, 3:14 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Cass, Guthrie	46 min
May 24, 3:15 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	45 min
May 24, 3:19 PM CDT	Severe Thunderstorm Warning	DMX	Pocahontas	41 min
May 24, 3:51 PM CDT	Severe Thunderstorm Warning	DMX	Carroll	39 min
May 24, 4:04 PM CDT	Severe Thunderstorm Warning	DMX	Pocahontas	26 min
May 24, 4:06 PM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Webster	39 min
May 24, 4:13 PM CDT	Tornado Warning	DMX	Adair	32 min
May 24, 4:42 PM CDT	Severe Thunderstorm Warning	DMX	Audubon	48 min
May 24, 4:45 PM CDT	Tornado Warning	DMX	Madison	45 min
May 24, 4:57 PM CDT	Flash Flood Warning	DMX	Humboldt	4 hr
May 24, 5:02 PM CDT	Flash Flood Warning	DMX	Dallas, Madison	6 hr
May 24, 5:04 PM CDT	Tornado Warning	DMX	Dallas	56 min
May 24, 5:07 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton	38 min
May 24, 5:12 PM CDT	Flash Flood Warning	DMX	Audubon, Carroll, Greene, Guthrie	6 hr
May 24, 5:18 PM CDT	Severe Thunderstorm Warning	DMX	Guthrie	57 min
May 24, 5:19 PM CDT	Tornado Warning	DMX	Polk	56 min
May 24, 5:30 PM CDT	Tornado Warning	DMX	Madison	15 min
May 24, 5:36 PM CDT	Tornado Warning	DMX	Warren	24 min
May 24, 5:39 PM CDT	Flash Flood Warning	DMX	Polk	6 hr
May 24, 5:43 PM CDT	Tornado Warning	DMX	Madison	32 min
May 24, 5:59 PM CDT	Tornado Warning	DMX	Warren	46 min
May 24, 6:17 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Polk	28 min
May 24, 6:21 PM CDT	Severe Thunderstorm Warning	DMX	Taylor	39 min
May 24, 6:26 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Story	64 min
May 24, 6:26 PM CDT	Tornado Warning	DMX	Madison	49 min
May 24, 6:28 PM CDT	Flash Flood Warning	DMX	Taylor	19 hr
May 24, 6:35 PM CDT	Tornado Warning	DMX	Taylor	40 min
May 24, 6:38 PM CDT	Flash Flood Warning	DMX	Marion	18 hr
May 24, 6:41 PM CDT	Tornado Warning	DMX	Marion	49 min
May 24, 6:42 PM CDT	Flash Flood Warning	DMX	Warren	18 hr
May 24, 6:44 PM CDT	Severe Thunderstorm Warning	DMX	Polk	46 min
May 24, 6:45 PM CDT	Tornado Warning	DMX	Warren	30 min
May 24, 6:47 PM CDT	Tornado Warning	DMX	Monroe	43 min
May 24, 6:52 PM CDT	Flash Flood Warning	DMX	Decatur, Ringgold	18 hr
May 24, 6:52 PM CDT	Tornado Warning	DMX	Ringgold	38 min
May 24, 6:55 PM CDT	Flash Flood Warning	DMX	Mahaska	18 hr

Nearby

Flash Flood Warnings in Iowa, 2004 Every flash flood warning in 2004

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.