Alert archive / Iowa / Flash Flood Warnings in 2008

Flash Flood Warning 100, NWS Des Moines, IA

June 12, 20084 counties in Iowa

NWS Des Moines, IA issued this flash flood warning at Jun 12, 2008, 5:19 PM CDT for 4 counties in Iowa. It was in force for 12 hr. 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: Jun 12, 2008, 5:19 PM CDT (22:19 UTC)
Expired: Jun 13, 2008, 5:15 AM CDT
In force: 12 hr
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Flood severity: None

Counties Appanoose County, IA, Davis County, IA, Monroe County, IA, Wapello County, IA

The radar

The Des Moines radar (KDMX), 127 km from the middle of the area, began a volume at 22:21 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
Jun 12, 7:21 PM CDT	FLASH FLOOD	1 N Mystic, IA	DEPUTY REPORTED WATER AT LEAST 3-4 INCHES DEEP FLOWING ACROSS 472ND STREET WEST OF HIGHWAY T14. ALSO WATER FLOWING ACROSS HIGHWAY T14 NORTH OF THAT LOCATION.
Jun 12, 9:27 PM CDT	FLASH FLOOD	Ottumwa, IA	FLASH FLOODING REPORTED BY OTTUMWA POLICE AND CITY MANAGEMENT. NUMEROUS FLOODED STREETS AND NUMEROUS STALLED CARS.
Jun 12, 10:22 PM CDT	FLASH FLOOD	1 Sw Ottumwa, IA	ABOUT HALF OF THE SOUTH SIDE OF OTTUMWA AFFECTED BY FLASH FLOODING. WATER FROM 6 INCHES TO 3 FEET DEEP IN PLACES.
Jun 13, 1:04 AM CDT	FLASH FLOOD	4 E Albia, IA	ROAD CLOSED DUE TO WATER RUNNING OVER OLD HIGHWAY 34 EAST OF ALBIA.
Jun 13, 1:06 AM CDT	FLASH FLOOD	6 Sw Centerville, IA	ROAD CLOSED DUE TO FLASH FLOODING ON 170TH AVENUE SOUTHEAST OF NUMA.

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 5 storm reports to this flash flood warning; the first came 122 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 nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.3 hours before the alert went out and 195 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: 698 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 983 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 285 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 7.8

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KDMX 122219
FFWDMX
IAC007-051-135-179-130415-
/O.NEW.KDMX.FF.W.0100.080612T2219Z-080613T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
519 PM CDT THU JUN 12 2008

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  APPANOOSE COUNTY IN SOUTH CENTRAL IOWA...
  MONROE COUNTY IN SOUTH CENTRAL IOWA...
  DAVIS COUNTY IN SOUTHEAST IOWA...
  WAPELLO COUNTY IN SOUTHEAST IOWA...
  THIS INCLUDES THE CITY OF OTTUMWA...

* UNTIL 1115 PM CDT

* AT 516 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ELDON...
  BLOOMFIELD AND ALBIA

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

LAT...LON 4092 9310 4117 9290 4116 9242 4117 9218
      4090 9217 4060 9219 4058 9310
TIME...MOT...LOC 2219Z 180DEG 0KT 4074 9264

$$

PODRAZIK

7 follow-up statements

000 
WGUS73 KDMX 122308
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
606 PM CDT THU JUN 12 2008

IAC007-051-135-179-130415-
/O.CON.KDMX.FF.W.0100.000000T0000Z-080613T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
APPANOOSE IA-DAVIS IA-MONROE IA-WAPELLO IA-
606 PM CDT THU JUN 12 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT FOR
WAPELLO...MONROE...DAVIS AND APPANOOSE COUNTIES...

AT 603 PM CDT...THUNDERSTORM CAPABLE OF PRODUCING FLASH FLOODING 
WILL CONTINUE TO MOVE ACROSS THE WARNED AREA. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
OTTUMWA...ELDON...BLOOMFIELD AND ALBIA. 

ADDITIONAL RAINFALL AMOUNTS OF UP TO AN INCH ARE POSSIBLE IN THE 
WARNED AREA.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR SOUTHEASTERN IOWA.

LAT...LON 4092 9310 4117 9290 4116 9242 4117 9218
      4090 9217 4060 9219 4058 9310
TIME...MOT...LOC 2306Z 180DEG 0KT 4074 9264

$$

PODRAZIK

000 
WGUS73 KDMX 130037
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
734 PM CDT THU JUN 12 2008

IAC007-051-135-179-130415-
/O.CON.KDMX.FF.W.0100.000000T0000Z-080613T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
APPANOOSE IA-DAVIS IA-MONROE IA-WAPELLO IA-
734 PM CDT THU JUN 12 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT FOR
WAPELLO...MONROE...DAVIS AND APPANOOSE COUNTIES...

AT 729 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH 
FLOODING FROM THUNDERSTORMS THAT CONTINUE TO MOVE OVER THE WARNED 
AREA.

AT 721 PM...THE APPANOOSE COUNTY SHERIFF REPORTED 3 TO 4 INCHES OF 
WATER FLOWING OVER PAVED AND GRAVEL ROADS ONE MILE NORTH OF MYSTIC.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
OTTUMWA...ELDON...BLOOMFIELD...ALBIA...MORAVIA AND BLAKESBURG.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA AS THUNDERSTORMS CONTINUE TO MOVE NORTHEAST FROM 
MISSOURI.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR SOUTHEASTERN IOWA.

LAT...LON 4092 9310 4117 9290 4116 9242 4117 9218
      4090 9217 4060 9219 4058 9310
TIME...MOT...LOC 0034Z 180DEG 0KT 4074 9264

$$

JUNGBLUTH

000 
WGUS73 KDMX 130122
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
819 PM CDT THU JUN 12 2008

IAC007-051-135-179-130415-
/O.CON.KDMX.FF.W.0100.000000T0000Z-080613T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
APPANOOSE IA-DAVIS IA-MONROE IA-WAPELLO IA-
819 PM CDT THU JUN 12 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT FOR
WAPELLO...MONROE...DAVIS AND APPANOOSE COUNTIES...

AT 816 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED 
THUNDERSTORMS PRODUCING FLASH FLOODING. EXTENSIVE STREET FLOOD WAS 
REPORTED IN OTTUMWA...ENOUGH TO STALL SEVERAL CARS.  ROADS ALSO 
REMAIN UNDER WATER NEAR MYSTIC.

A SECOND STORM WAS LOCATED 15 MILES SOUTHWEST OF OTTUMWA...AND WILL 
MOVE THROUGH OTTUMWA AROUND 830 PM. ANOTHER STORM IN MISSOURI WILL 
MOVE ACROSS APPANOOSE AND WAPELLO COUNTIES BEFORE 10 PM...EXTENDING 
THE FLASH FLOOD THREAT.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
BLOOMFIELD...CENTERVILLE AND ELDON.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR SOUTHEASTERN IOWA.

LAT...LON 4092 9310 4117 9290 4116 9242 4117 9218
      4090 9217 4060 9219 4058 9310
TIME...MOT...LOC 0119Z 235DEG 42KT 4090 9262

$$

JUNGBLUTH

000 
WGUS73 KDMX 130243
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
937 PM CDT THU JUN 12 2008

IAC007-051-135-179-130415-
/O.CON.KDMX.FF.W.0100.000000T0000Z-080613T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
APPANOOSE IA-DAVIS IA-MONROE IA-WAPELLO IA-
937 PM CDT THU JUN 12 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT FOR
WAPELLO...MONROE...DAVIS AND APPANOOSE COUNTIES...

AT 934 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH 
FLOODING IN OTTUMWA...WITH MORE INTENSE THUNDERSTORMS ON THE WAY. 
FLASH FLOODING WAS OCCURRING WITHIN THE CITY AND NUMEROUS CARS WERE 
STALLED.

IN ADDITION...THE MYSTIC RESERVOIR ROAD NORTH OF MYSTIC WAS FLOODED 
IN APPANOOSE COUNTY.  

AT LEAST 2.5 INCHES OF RAIN HAS FALLEN IN SOME AREAS THIS 
EVENING...AND ANOTHER 1 TO 2 INCHES OF RAIN COULD OCCUR BEFORE 
THUNDERSTORMS BEGIN TO DIMINISH AROUND 1130 PM.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
NUMA...PLANO...RATHBUN...MORAVIA...UNIONVILLE...BLAKESBURG... 
CHILLICOTHE...AGENCY AND BLOOMFIELD. RAINFALL COULD EXCEED 5 INCHES 
IN THESE AREAS...WITH SERIOUS FLASH FLOODING POSSIBLE.

DO NOT DRIVE INTO WATER AT NIGHT MOST FLOOD DEATHS OCCUR IN 
AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER 
COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY 
APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP 
VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE 
SMART CHOICE...TURN AROUND...DONT DROWN.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR SOUTHEASTERN IOWA.

LAT...LON 4092 9310 4117 9290 4116 9242 4117 9218
      4090 9217 4060 9219 4058 9310
TIME...MOT...LOC 0237Z 235DEG 40KT 4044 9396

$$

000 
WGUS53 KDMX 130415
FFWDMX
IAC007-051-135-179-131015-
/O.EXT.KDMX.FF.W.0100.000000T0000Z-080613T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1110 PM CDT THU JUN 12 2008

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  APPANOOSE COUNTY IN SOUTH CENTRAL IOWA...
  MONROE COUNTY IN SOUTH CENTRAL IOWA...
  DAVIS COUNTY IN SOUTHEAST IOWA...
  WAPELLO COUNTY IN SOUTHEAST IOWA...
  THIS INCLUDES THE CITY OF OTTUMWA...

* UNTIL 515 AM CDT FRIDAY

* AT 1105 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH    
  FLOODING FROM A THUNDERSTORM NEAR OTTUMWA...MOVING NORTHEAST AT 52 
  MPH.  SEVERAL LOCATIONS IN AND AROUND OTTUMWA ARE EXPERIENCING
  FLASH FLOODING FROM SEVERAL INCHES OF RAINFALL.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ELDON

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED 
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. 

LAT...LON 4092 9310 4117 9290 4116 9242 4117 9218
      4090 9217 4060 9219 4058 9310
TIME...MOT...LOC 0410Z 234DEG 45KT 4085 9236

$$

COGIL

000 
WGUS73 KDMX 130457
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1155 PM CDT THU JUN 12 2008

IAC007-051-135-179-131015-
/O.CON.KDMX.FF.W.0100.000000T0000Z-080613T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
APPANOOSE IA-DAVIS IA-MONROE IA-WAPELLO IA-
1155 PM CDT THU JUN 12 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR
WAPELLO...MONROE...DAVIS AND APPANOOSE COUNTIES...

AT 1152 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED A
THUNDERSTORM PRODUCING FLASH FLOODING.  THIS STORM WAS LOCATED 13
MILES NORTHWEST OF BLOOMFIELD...OR 14 MILES SOUTHWEST OF OTTUMWA...
MOVING NORTHEAST AT 61 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ELDON

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 4092 9310 4117 9290 4116 9242 4117 9218
      4090 9217 4060 9219 4058 9310
TIME...MOT...LOC 0455Z 228DEG 53KT 4090 9256

$$

COGIL

000 
WGUS73 KDMX 130623
FFSDMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
119 AM CDT FRI JUN 13 2008

IAC007-051-135-179-131015-
/O.CON.KDMX.FF.W.0100.000000T0000Z-080613T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
APPANOOSE IA-DAVIS IA-MONROE IA-WAPELLO IA-
119 AM CDT FRI JUN 13 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR
WAPELLO...MONROE...DAVIS AND APPANOOSE COUNTIES...

AT 114 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS FLASH FLOODING 
ACROSS PORTIONS OF THE WARNED AREA.  IN AND AROUND OTTUMWA...WATER 
HAS BEGUN TO RECEED...HOWEVER SEVERAL ROADS REMAIN COVERED IN WATER.
IN MONROE COUNTY...OLD HIGHWAY 34 IS CLOSED 4 MILES EAST OF ALBIA 
DUE TO WATER RUNNING OVER THE ROAD.  IN APPANOOSE COUNTY...170TH 
AVENUE IS CLOSED SOUTHEAST OF NUMA DUE TO HIGH WATER OVER THE ROAD.  

IT DOES APPEAR THAT THE HEAVIEST RAIN HAS ENDED ALTHOUGH SOME 
ADDITIONAL RAINFALL CAN BE EXPECTED FROM NEAR MOULTON TO BLOOMFIELD 
AND ELDON.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 4092 9310 4117 9290 4116 9242 4117 9218
      4090 9217 4060 9219 4058 9310
TIME...MOT...LOC 0619Z 228DEG 53KT 4172 9133

$$

COGIL

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 Jun 12, 3:20 PM CDT, 1 hour 59 minutes earlier.

Area forecast discussion, Jun 12, 3:20 PM CDT, 1 hour 59 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
320 PM CDT THU JUN 12 2008

.DISCUSSION...
A STATIONARY FRONT IS DRAPED ACROSS IOWA...STRETCHING FROM AROUND
DECORAH...TO NEAR NEWTON...DOWN TO AROUND LAMONI. TO THE NORTHWEST
OF THIS FRONT SKIES ARE PARTLY CLOUDY BENEATH AC WITH NO RAIN.
SOUTHEAST OF THE BOUNDARY LOW CLOUDS ARE MORE ABUNDANT...DEWPOINTS
ARE IN THE MID 60S TO NEAR 70...AND SHOWERS AND THUNDERSTORMS
CONTINUE TO DEVELOP AND MOVE NORTHEASTWARD. INSTABILITY IS
INCREASING...ESPECIALLY IN OUR FAR SOUTHEASTERN COUNTIES...AND
SEVERE WEATHER IS A POSSIBILITY LATE THIS AFTERNOON AND EVENING.
EARLY TONIGHT...A LARGE MID-LEVEL CYCLONE OVER THE FAR NORTHERN
PLAINS WILL MOVE EASTWARD...AND THE WESTERLY FLOW ON ITS SOUTHERN
PERIPHERY WILL FINALLY SHOVE THE STATIONARY FRONT GRADUALLY
SOUTHEASTERN OUT OF OUR AREA BY FRIDAY MORNING. THIS WILL RESULT IN
SLOWLY DIMINISHING RAIN CHANCES ACROSS THE SOUTHEAST OVERNIGHT.
WINDS WILL BE FAIRLY LIGHT THROUGHOUT THE CWA AS WE REMAIN IN A WEAK
PRESSURE GRADIENT. SOME PATCHY FOG IS POSSIBLE IN THE EARLY MORNING
HOURS...ESPECIALLY IN CENTRAL AND SOUTHEASTERN IOWA WHERE WINDS WILL
BE LIGHTEST AND DEWPOINTS HIGHER...HOWEVER DO NOT HAVE ENOUGH
CONFIDENCE IN THE THICKNESS OF ANY SUCH FOG TO INCLUDE IT IN THE
OFFICIAL FORECAST AT THIS TIME.  LONGER TERM THE WX LOOKS MUCH
QUIETER WTIH PTRN CHNG TO A MROE NWLY FLOW INSTEAD OF THE -PNA
PATTERN WEVE BEEN IN.  NEXT FNTL SYS WILL MOV THRUT THE AREA SUN
INTO MON WITH ANOTHER ROUND OF TSRA.  QPF FROM THIS SYS IS LKLY TO
BE QUITE A BIT UNDER WHAT THE LAST FEW HAVE BEEN.  AFT THAT SYS
PASSES...THERE SHOULD BE A FEW MORE QUITE DAYS INTO NEXT WEEK.
TEMPS WL REMAIN AOB NORMAL THRU THE PD.

&&

.AVIATION...12/18Z
STATIONARY FRONT DRAPED ACROSS EAST CENTRAL IOWA...WITH VFR
CONDITIONS EXPECTED TO THE WEST AND MVFR/TSTORMS TO THE EAST. KOTM
REMAINS SOUTHEAST OF THE FRONT...AND WILL EXPERIENCE INTERMITTENT
MVFR CIGS THIS AFTERNOON WITH A CHANCE OF THUNDERSTORMS IN THE LATE
AFTERNOON AND EVENING. OTHER SITES WILL HAVE QUIETER WEATHER WITH
VFR CLOUDS AND NO PRECIP ANTICIPATED. SOME FOG IS POSSIBLE DURING
THE EARLY MORNING HOURS IN VERY LIGHT SFC WINDS AT KDSM...KALO...AND
ESPECIALLY KOTM.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

SHORT TERM...LEE
AVIATION...LEE
LONG TERM...MS JUN 08

Hazardous weather outlook, Jun 12, 7:18 AM CDT, 10 hours 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
718 AM CDT THU JUN 12 2008

IAZ073>075-083>086-094>097-131100-
WARREN-MARION-MAHASKA-CLARKE-LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-
APPANOOSE-DAVIS-
718 AM CDT THU JUN 12 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A SMALL PART OF THE
SOUTHEAST PORTION OF CENTRAL IOWA.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS WILL MOVE ACROSS THE AREA THIS MORNING.
AN ISOLATED STORM MAY BE SEVERE WITH LARGE HAIL AND DAMAGING WIND
THE MAIN THREATS.

THUNDERSTORMS ARE POSSIBLE LATER THIS AFTERNOON AND TONIGHT. THESE
STORMS WILL BE STRONG TO SEVERE. A FEW STORMS MAY PRODUCE LARGE
HAIL AND DAMAGING WIND. HEAVY RAINFALL WILL STILL BE LIKELY WITH
ANY STORM.

NUMEROUS AREAL AND RIVER FLOOD WARNINGS ARE IN EFFECT ACROSS CENTRAL
IOWA. FOR ADDITIONAL INFORMATION PLEASE REFER TO THE NATIONAL
WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE WILL BE A CHANCE FOR THUNDERSTORMS LINGERING INTO EARLY
FRIDAY. A BETTER CHANCE FOR STORMS WILL ARRIVE ON SUNDAY INTO
MONDAY. THE SEVERE WEATHER POTENTIAL AT THIS TIME LOOKS TO BE
MINIMAL WHILE THE HEAVY RAIN POTENTIAL HAS YET TO BE DETERMINED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE THIS AFTERNOON AND EARLY EVENING
ACROSS THE AREA.

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>072-081-
082-092-093-131100-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
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-ADAMS-UNION-TAYLOR-RINGGOLD-
718 AM CDT THU JUN 12 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MUCH OF CENTRAL IOWA.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS WILL MOVE ACROSS THE AREA THIS MORNING.
AN ISOLATED STORM MAY BE SEVERE SOUTH OF HIGHWAY 34 WITH LARGE
HAIL AND DAMAGING WIND THE MAIN THREATS. HEAVY RAINFALL IS LIKELY
WITH ANY STORM.

AN ISOLATED THUNDERSTORM IS POSSIBLE THIS AFTERNOON MAINLY EAST OF
INTERSTATE 35.

NUMEROUS AREAL AND RIVER FLOOD WARNINGS ARE IN EFFECT ACROSS
CENTRAL IOWA. FOR ADDITIONAL INFORMATION PLEASE REFER TO THE
NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE WILL BE A CHANCE FOR THUNDERSTORMS LINGERING INTO EARLY
FRIDAY. A BETTER CHANCE FOR STORMS WILL ARRIVE ON SUNDAY INTO
MONDAY. THE SEVERE WEATHER POTENTIAL AT THIS TIME LOOKS TO BE
MINIMAL WHILE THE HEAVY RAIN POTENTIAL HAS YET TO BE DETERMINED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

FAB

In the hours before

Local storm report, Jun 12, 3:42 PM CDT, 1 hour 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
342 PM CDT THU JUN 12 2008

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

0337 PM     HAIL             1 E GRINNELL            41.74N 92.70W
06/12/2008  E0.88 INCH       POWESHIEK          IA   LAW ENFORCEMENT

&&

RKINNEY

Local storm report, Jun 12, 5:00 PM CDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
500 PM CDT THU JUN 12 2008

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

0454 PM     TORNADO          9 SSW BLOOMFIELD        40.63N 92.48W
06/12/2008                   DAVIS              IA   LAW ENFORCEMENT

            PUBLIC REPORTED A TORNADO NEAR THE TOWNSITE OF SAVANNAH
            MOVING NORTHEAST.

&&

RKINNEY

Local storm report, Jun 12, 5:05 PM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
505 PM CDT THU JUN 12 2008

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

0500 PM     HAIL             ALBIA                   41.03N 92.80W
06/12/2008  E1.75 INCH       MONROE             IA   LAW ENFORCEMENT

            SEVERAL REPORTS OF GOLFBALL SIZE HAIL IN THE ALBIA AREA.
            CAR WINDOWS ALSO REPORTED TO BE BROKEN.

&&

RKINNEY

Local storm report, Jun 12, 5:11 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
511 PM CDT THU JUN 12 2008

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

0510 PM     HAIL             4 WSW EDDYVILLE         41.13N 92.69W
06/12/2008  M1.75 INCH       MONROE             IA   TRAINED SPOTTER

&&

MRUSSELL

Local storm report, Jun 12, 5:18 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
518 PM CDT THU JUN 12 2008

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

0514 PM     HAIL             4 N EDDYVILLE           41.22N 92.63W
06/12/2008  E1.75 INCH       MAHASKA            IA   LAW ENFORCEMENT

            NICKEL TO GOLF BALL SIZE HAIL REPORTED.

&&

MS JUN 08

Local storm report, Jun 12, 5:19 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
519 PM CDT THU JUN 12 2008

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

0513 PM     HAIL             1 NW EDDYVILLE          41.16N 92.64W
06/12/2008  E1.00 INCH       WAPELLO            IA   TRAINED SPOTTER

            HAIL RANGED IN SIZE FROM PENNIES TO QUARTERS AND LASTED 3
            MINUTES.

&&

MRUSSELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 7:12 PM CDT	Tornado Warning	DMX	Emmet, Palo Alto	48 min
Jun 11, 7:29 PM CDT	Tornado Warning	DMX	Emmet, Palo Alto	46 min
Jun 11, 7:39 PM CDT	Tornado Warning	DMX	Crawford	18 min
Jun 11, 7:41 PM CDT	Tornado Warning	DMX	Palo Alto, Pocahontas	34 min
Jun 11, 7:46 PM CDT	Severe Thunderstorm Warning	DMX	Crawford	44 min
Jun 11, 7:53 PM CDT	Tornado Warning	DMX	Crawford	52 min
Jun 11, 7:59 PM CDT	Flash Flood Warning	DMX	Crawford	6 hr
Jun 11, 8:02 PM CDT	Tornado Warning	DMX	Sac	28 min
Jun 11, 8:08 PM CDT	Flash Flood Warning	DMX	Palo Alto, Pocahontas	6 hr
Jun 11, 8:12 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth	48 min
Jun 11, 8:15 PM CDT	Tornado Warning	DMX	Palo Alto, Pocahontas	45 min
Jun 11, 8:17 PM CDT	Tornado Warning	DMX	Audubon, Carroll	43 min
Jun 11, 8:26 PM CDT	Tornado Warning	DMX	Palo Alto, Pocahontas	34 min
Jun 11, 8:31 PM CDT	Tornado Warning	DMX	Carroll	29 min
Jun 11, 8:33 PM CDT	Tornado Warning	DMX	Kossuth	42 min
Jun 11, 8:48 PM CDT	Severe Thunderstorm Warning	DMX	Carroll, Greene	27 min
Jun 11, 8:48 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Sac	57 min
Jun 11, 8:52 PM CDT	Flash Flood Warning	DMX	Sac	6 hr
Jun 11, 8:59 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Cass	46 min
Jun 11, 8:59 PM CDT	Tornado Warning	DMX	Palo Alto, Pocahontas	31 min
Jun 11, 9:06 PM CDT	Flash Flood Warning	DMX	Kossuth	6 hr
Jun 11, 9:10 PM CDT	Severe Thunderstorm Warning	DMX	Webster	50 min
Jun 11, 9:12 PM CDT	Tornado Warning	DMX	Kossuth	33 min
Jun 11, 9:16 PM CDT	Flash Flood Warning	DMX	Audubon, Carroll, Cass	6 hr
Jun 11, 9:18 PM CDT	Severe Thunderstorm Warning	DMX	Greene, Guthrie	42 min
Jun 11, 9:33 PM CDT	Flash Flood Warning	DMX	Cerro Gordo, Worth	6 hr
Jun 11, 9:35 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Winnebago	40 min
Jun 11, 9:37 PM CDT	Severe Thunderstorm Warning	DMX	Kossuth, Winnebago	38 min
Jun 11, 9:54 PM CDT	Severe Thunderstorm Warning	DMX	Boone	36 min
Jun 11, 9:55 PM CDT	Flash Flood Warning	DMX	Adair, Greene, Guthrie, Webster	6 hr
Jun 11, 9:57 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Humboldt, Webster, Wright	48 min
Jun 11, 10:01 PM CDT	Severe Thunderstorm Warning	DMX	Hamilton, Webster, Wright	44 min
Jun 11, 10:02 PM CDT	River Flood Warning	DMX	Humboldt	13 hr
Jun 11, 10:21 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Hancock	39 min
Jun 11, 10:26 PM CDT	Flash Flood Warning	DMX	Boone, Dallas	6 hr
Jun 11, 10:26 PM CDT	Severe Thunderstorm Warning	DMX	Story	49 min
Jun 11, 10:32 PM CDT	Severe Thunderstorm Warning	DMX	Hardin	43 min
Jun 11, 10:34 PM CDT	Flash Flood Warning	DMX	Franklin, Hamilton, Story, Wright	6 hr
Jun 11, 10:38 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Franklin	52 min
Jun 11, 11:01 PM CDT	Severe Thunderstorm Warning	DMX	Butler, Grundy	44 min
Jun 11, 11:04 PM CDT	Severe Thunderstorm Warning	DMX	Grundy, Marshall, Tama	56 min
Jun 11, 11:08 PM CDT	Flash Flood Warning	DMX	Hancock, Winnebago	6 hr
Jun 11, 11:16 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo	29 min
Jun 11, 11:20 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer	55 min
Jun 11, 11:27 PM CDT	Flash Flood Warning	DMX	Adams	6 hr
Jun 12, 12:08 AM CDT	River Flood Warning	DMX	Cass	21 hr
Jun 12, 12:15 AM CDT	Flash Flood Warning	DMX	Black Hawk, Bremer, Butler, Grundy	6 hr
Jun 12, 12:23 AM CDT	Flash Flood Warning	DMX	Polk	6 hr
Jun 12, 12:28 AM CDT	Flash Flood Warning	DMX	Madison	6 hr
Jun 12, 1:28 AM CDT	Flash Flood Warning	DMX	Marshall, Tama	6 hr
Jun 12, 2:26 AM CDT	Areal Flood Warning	DMX	Palo Alto, Pocahontas	6 hr
Jun 12, 3:06 AM CDT	Areal Flood Warning	DMX	Kossuth	6 hr
Jun 12, 3:22 AM CDT	Areal Flood Warning	DMX	Audubon, Carroll, Cass	5 hr
Jun 12, 3:50 AM CDT	Areal Flood Warning	DMX	Adair, Guthrie	6 hr
Jun 12, 4:05 AM CDT	Severe Thunderstorm Warning	DMX	Decatur, Wayne	40 min
Jun 12, 4:23 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Dallas, Guthrie	23 min
Jun 12, 5:30 AM CDT	Areal Flood Warning	DMX	Adams	3 hr
Jun 12, 6:26 AM CDT	Areal Flood Warning	DMX	Madison	3 hr
Jun 12, 7:00 AM CDT	Areal Flood Warning	DMX	Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 26 more	12 hr
Jun 12, 9:39 AM CDT	River Flood Warning	DMX	Decatur	34 hr
Jun 12, 12:21 PM CDT	River Flood Warning	DMX	Story	15 hr
Jun 12, 1:13 PM CDT	River Flood Warning	DMX	Lucas	38 hr
Jun 12, 1:27 PM CDT	River Flood Warning	DMX	Polk	14 hr
Jun 12, 3:04 PM CDT	Areal Flood Warning	DMX	Marion	12 hr
Jun 12, 3:09 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion	29 min
Jun 12, 3:29 PM CDT	Severe Thunderstorm Warning	DMX	Poweshiek	27 min
Jun 12, 3:47 PM CDT	Severe Thunderstorm Warning	DMX	Tama	28 min
Jun 12, 3:58 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Poweshiek	27 min
Jun 12, 4:21 PM CDT	Tornado Warning	DMX	Appanoose, Davis	39 min
Jun 12, 4:40 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Wayne	34 min
Jun 12, 4:47 PM CDT	Severe Thunderstorm Warning	DMX	Monroe	32 min
Jun 12, 4:57 PM CDT	Tornado Warning	DMX	Davis	48 min
Jun 12, 5:06 PM CDT	Severe Thunderstorm Warning	DMX	Mahaska	39 min
Jun 12, 5:26 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Wayne	14 min
Jun 12, 5:30 PM CDT	Severe Thunderstorm Warning	DMX	Mahaska, Poweshiek	17 min
Jun 12, 5:36 PM CDT	Severe Thunderstorm Warning	DMX	Monroe	24 min
Jun 12, 5:48 PM CDT	Tornado Warning	DMX	Davis	30 min
Jun 12, 6:56 PM CDT	Areal Flood Warning	DMX	Adair, Adams, Black Hawk, Boone, Bremer, Butler and 17 more	12 hr

Nearby

Flash Flood Warnings in Iowa, 2008 Every flash flood 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.