Alert archive / Iowa / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 96, NWS Des Moines, IA

June 19, 2009Mahaska County, Poweshiek County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jun 19, 2009, 3:50 PM CDT for Mahaska County, Poweshiek County, Iowa. It was in force for 40 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: Jun 19, 2009, 3:50 PM CDT (20:50 UTC)
Expired: Jun 19, 2009, 4:30 PM CDT
In force: 40 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon

Counties Mahaska County, IA, Poweshiek County, IA

The radar

The Des Moines radar (KDMX), 95 km from the middle of the area, began a volume at 20:50 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 19, 4:14 PM CDT	TSTM WND GST 60	3 Nne Oskaloosa Airport, IA	TRAINED SPOTTER REPORTED WIND GUSTS OF AT LEAST 60 MPH WITH MINOR TREE AND ROOF DAMAGE.

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 24 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
Jun 19, 1:36 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 8.8 hours before the alert went out and 176 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: 2575 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 810 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 10.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KDMX 192050
SVRDMX
IAC123-157-192145-
/O.NEW.KDMX.SV.W.0096.090619T2050Z-090619T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
350 PM CDT FRI JUN 19 2009

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN POWESHIEK COUNTY IN CENTRAL IOWA...
  MAHASKA COUNTY IN SOUTH CENTRAL IOWA...

* UNTIL 445 PM CDT

* AT 351 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM GUERNSEY TO 3 MILES SOUTHEAST
  OF SEARSBORO TO 5 MILES SOUTHWEST OF LEIGHTON...AND WERE MOVING
  EAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  UNIVERSITY PARK...OSKALOOSA...DEEP RIVER AND BEACON BY 405 PM
  CDT...
  BARNES CITY BY 410 PM CDT...
  KEOMAH VILLAGE BY 415 PM CDT...
  ROSE HILL BY 420 PM CDT...

THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 182 AND 204.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4150 9241 4124 9241 4128 9288 4135 9288
      4151 9281 4152 9276 4160 9276 4160 9277
      4174 9272 4176 9229 4151 9229
TIME...MOT...LOC 2051Z 270DEG 35KT 4167 9230 4154 9268
          4128 9283

$$

COGIL

3 follow-up statements

000 
WWUS53 KDMX 192102
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
402 PM CDT FRI JUN 19 2009

IAC123-157-192145-
/O.CON.KDMX.SV.W.0096.000000T0000Z-090619T2145Z/
POWESHIEK IA-MAHASKA IA-
402 PM CDT FRI JUN 19 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR NORTHERN MAHASKA AND SOUTHERN POWESHIEK COUNTIES...

AT 400 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 6 MILES NORTHEAST OF GUERNSEY TO
NEW SHARON TO BEACON...MOVING EAST AT 35 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  UNIVERSITY PARK BY 410 PM CDT...
  KEOMAH VILLAGE BY 415 PM CDT...
  ROSE HILL BY 420 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4150 9241 4124 9241 4128 9283 4162 9264
      4176 9229 4151 9229
TIME...MOT...LOC 2102Z 267DEG 32KT 4169 9221 4148 9256
          4128 9268

$$

COGIL

000 
WWUS53 KDMX 192120
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
420 PM CDT FRI JUN 19 2009

IAC123-157-192145-
/O.CON.KDMX.SV.W.0096.000000T0000Z-090619T2145Z/
POWESHIEK IA-MAHASKA IA-
420 PM CDT FRI JUN 19 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR NORTHEASTERN MAHASKA AND SOUTHEASTERN POWESHIEK COUNTIES...

AT 420 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 18 MILES EAST OF GUERNSEY TO 6
MILES EAST OF BARNES CITY TO ROSE HILL...MOVING EAST AT 35 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4164 9249 4173 9229 4151 9229 4150 9241
      4124 9241 4126 9257
TIME...MOT...LOC 2120Z 267DEG 32KT 4169 9200 4149 9235
          4129 9247

$$

COGIL

000 
WWUS53 KDMX 192130
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
430 PM CDT FRI JUN 19 2009

IAC123-157-192140-
/O.CAN.KDMX.SV.W.0096.000000T0000Z-090619T2145Z/
POWESHIEK IA-MAHASKA IA-
430 PM CDT FRI JUN 19 2009

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MAHASKA AND
SOUTHEASTERN POWESHIEK COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM.

LAT...LON 4164 9249 4173 9229 4151 9229 4150 9241
      4124 9241 4126 9257
TIME...MOT...LOC 2130Z 267DEG 32KT 4169 9188 4149 9224
          4129 9236

$$

COGIL

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 19, 3:08 PM CDT, 42 minutes earlier.

Area forecast discussion, Jun 19, 3:08 PM CDT, 42 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
310 PM CDT THU JUN 18 2009

.SHORT TERM /TONIGHT/...
MAIN UPPER WAVE TO FINALLY MOVE THROUGH THE AREA TONIGHT...WITH
ASSOCIATED TROUGH AXIS ALREADY BISECTING THE CWA. COMPLEX OF SHOWERS
AND THUNDERSTORMS HAVE DEVELOPED ALONG AND AHEAD OF THE AXIS...WITH
ACTIVITY EXPECTED TO CONTINUE TO SPREAD EASTWARD THROUGH THE LATE
AFTERNOON HOURS. UNIDIRECTIONAL FLOW...AND MODERATE CAPE VALUES
STILL GIVE A DECENT CHANCE OF SEVERE WEATHER WITH DAMAGING WINDS AND
LARGE HAIL THE MAIN THREATS. ALREADY GETTING DECENT RAIN
REPORTS...WITH SYSTEM EXPECTED TO BE FAIRLY PROGRESSIVE. HOWEVER
WITH ABUNDANT MOISTURE IN PLACE DUE TO DEWPOINTS IN THE 70S AND PWAT
VALUES AROUND 1.5 TO 2.0...THREAT OF FLASH FLOODING NOT OUT OF THE
QUESTION WHERE SOME STORMS MAY BACK BUILD ACROSS THE AREA. OTHERWISE
AS MAIN WAVE MOVES THROUGH THE AREA THIS EVENING...EXPECT -TSRA TO
TAPER OFF FROM WEST TO EAST THROUGH THE EARLY/MID EVENING HOURS.
SKIES EXPECTED TO CLEAR LATE TONIGHT...WITH WINDS BECOMING WESTERLY
TO NORTHWESTERLY AND LIGHT BY EARLY SATURDAY MORNING. SOMEWHAT
CONCERNED ABOUT FOG POTENTIAL LATE TONIGHT...AS MUCH DRIER AIR OVER
THE DAKOTAS NOT EXPECTED TO COMPLETELY MAKE IT INTO THE CWA. ALSO
WINDS DROP OFF WITH CLEARING SKIES...SO DID INSERT A MENTION OF
PATCHY FOG LATE TONIGHT ACROSS ENTIRE CWA.

.LONG TERM /SATURDAY THROUGH FRIDAY/...
UPPER LEVEL RIDGE AXIS MOVES OVER IOWA DURING SATURDAY...BUT WILL BE
FAIRLY TRANSIENT AS ANOTHER BATCH OF SHORTWAVE ENERGY LEAVES THE
SOUTHERN ROCKIES AND RIDES NORTHEAST THROUGH THE PLAINS AND OVER THE
UPR MS RVR VLY SATURDAY NIGHT AND SUNDAY. COINCIDENT WITH THIS WILL
BE A SURGE OF THETA-E ADVECTION OVER IOWA SATURDAY NIGHT AND THE
EVENTUAL PASSAGE OF A WARM FRONT SUNDAY...AND A RESURGENCE OF
TROPICAL-LIKE AIR WITH PWATS 1.5 TO 2 INCHES. WHILE NOT LOOKING TOO
UNSTABLE...A BAND OF WARM ADVECTION SHOWERS/TSTMS SEEMS
PROBABLE...MOVING SOUTH TO NORTH SATURDAY NIGHT. IT APPEARS THAT AS
WE GO THROUGH THE DAY SUNDAY...INCREASINGLY DRIER AIR ALOFT MOVES
OVER IOWA FROM THE SOUTHWEST...AND LOW LEVEL CONVERGENCE SHIFTS
NORTHEAST. SO WHILE CAPE VALUES GET VERY HIGH...NOT SURE WE WILL
HAVE ENOUGH FORCING TO DO ANYTHING WITH THE CAPE. BUT WILL LEAVE LOW
POPS IN THE FORECAST...WITH RELATIVELY HIGHER POPS TO THE NORTHEAST
CLOSER TO THE WARM FRONT.

THE STRONG UPPER LEVEL RIDGE CENTERED OVER THE SOUTHERN PLAINS NOSES
BACK OVER THE REGION MONDAY THROUGH TUESDAY NIGHT AND WILL LIKELY
MAINTAIN DRY...BUT VERY WARM AND HUMID CONDITIONS FOR US THROUGH THE
PERIOD. ONE CAVEAT THOUGH IS THAT A POTENTIAL WEAK DISTURBANCE MAY
RIDE OVER THE RIDGE OVER NRN IA MONDAY WITH ATTENDANT CHANCE FOR
THUNDERSTORMS. BUT CONFIDENCE IS NOT HIGH ENOUGH AT THIS TIME TO GO
MORE THAN SLIGHT CHANCE. THE NEXT SIGNIFICANT CHANCE FOR
THUNDERSTORMS STILL APPEARS TO BE LATE WEDNESDAY INTO EARLY THURSDAY
AS AN UPPER LEVEL TROUGH TRAVERSES THE NORTHERN CONUS...FLATTENS THE
RIDGE AND BRINGS A COLD FRONT SOUTHEAST INTO IOWA. THEN THERE IS THE
UNCERTAINTY OF HOW FAR SOUTH THE FRONT WILL GO BEFORE STALLING...SO
LOW POPS WILL BE MAINTAINED THURSDAY THROUGH FRIDAY. MONDAY AND
TUESDAY APPEAR TO BE THE WARMEST DAYS OF THE FORECAST PERIOD...WITH
LOWER TO MID 90S COMMON AND PLENTY OF HUMIDITY TO GO ALONG WITH IT.
OTHERWISE...TEMPS WILL STILL REMAIN AT OR ABOVE NORMAL LEVELS.

&&

.AVIATION...19/18Z
SFC TROUGH AXIS MOVING THROUGH WESTERN/NORTHERN CWA...WITH CONTINUED
PUSH EASTWARD. THIS WILL ALLOW FOR SFC WINDS TO SHIFT TO THE
WEST/NORTHWEST THROUGH THE AFTERNOON INTO THE EVENING. THIS BOUNDARY
ALSO PROVIDING A FOCUS OF SOME SHOWER AND THUNDERSTORM DEVELOPMENT.
EXPECT A LINE OF STORMS TO MOVE THROUGH THE AREA THIS AFTERNOON INTO
THE EARLY EVENING HOURS...AS AN UPPER LEVEL SYSTEM SHIFTS EASTWARD
FROM THE CENTRAL/NORTHERN PLAINS. ACTIVITY FURTHEST SOUTH TO BE MORE
INTENSE THAN STORMS FURTHER NORTH...THEREFORE HIGHLIGHTED CHANCES AT
KDSM AND KOTM WITH VCTS VERSUS THE VCSH/CB MENTION FURTHER NORTH.
ENTIRE SYSTEM TO MOVE OUT OF THE AREA BY LATE TONIGHT...ALLOWING FOR
CLEARING SKIES INTO SATURDAY MORNING.

&&

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

&&

SHORT TERM...ALBRECHT
LONG TERM...MOYER
AVIATION...ALBRECHT

Hazardous weather outlook, Jun 19, 3:44 PM CDT, 6 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
344 PM CDT FRI JUN 19 2009

IAZ061-062-073>075-083>086-094>097-201015-
JASPER-POWESHIEK-WARREN-MARION-MAHASKA-CLARKE-LUCAS-MONROE-
WAPELLO-DECATUR-WAYNE-APPANOOSE-DAVIS-
344 PM CDT FRI JUN 19 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THUNDERSTORMS WILL CONTINUE TO MOVE THROUGH THE AREA THROUGH EARLY
EVENING. DAMAGING WINDS...AND LARGE HAIL...AND HEAVY RAIN ARE THE
MAIN SEVERE THREATS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A CHANCE OF THUNDERSTORMS RETURNS TO THE FORECAST SATURDAY NIGHT
THROUGH MONDAY NIGHT...AND THEN AGAIN TOWARD THE END OF THE WEEK.
THE SEVERE WEATHER POTENTIAL IS QUITE LOW AT THIS TIME. THE
THREAT OF SEVERE WEATHER WILL BE BETTER DEFINED IN THE COMING
DAYS.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED THROUGH EARLY EVENING.

IAZ004>007-015>017-023>028-033>039-044>050-057>060-070>072-081-
082-092-093-201015-
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-CASS-ADAIR-
MADISON-ADAMS-UNION-TAYLOR-RINGGOLD-
344 PM CDT FRI JUN 19 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SHOWERS AND AN ISOLATED THUNDERSTORM WILL TAPER OFF ACROSS THE
AREA THROUGH THE EARLY EVENING HOURS. AS OF RIGHT NOW IT APPEARS
THE SEVERE THREAT HAS ENDED.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A CHANCE OF THUNDERSTORMS RETURNS TO THE FORECAST SATURDAY NIGHT
THROUGH MONDAY NIGHT...AND THEN AGAIN TOWARD THE END OF THE WEEK.
THE SEVERE WEATHER POTENTIAL IS QUITE LOW AT THIS TIME. THE
THREAT OF SEVERE WEATHER WILL BE BETTER DEFINED IN THE COMING
DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

MJA

In the hours before

Local storm report, Jun 19, 12:38 PM CDT, 3 hours 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1238 PM CDT FRI JUN 19 2009

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

0505 AM     HAIL             5 E ATLANTIC AIRPORT    41.42N 94.96W
06/19/2009  E0.75 INCH       CASS               IA   TRAINED SPOTTER

            DELAYED REPORT

&&

PODRAZIK

Local storm report, Jun 19, 12:54 PM CDT, 2 hours 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1254 PM CDT FRI JUN 19 2009

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

0655 AM     HAIL             3 SW GILMAN             41.85N 92.82W
06/19/2009  E0.75 INCH       JASPER             IA   TRAINED SPOTTER

            PEA TO PENNY HAIL...DELAYED REPORT

&&

PODRAZIK

Local storm report, Jun 19, 2:06 PM CDT, 1 hour 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
206 PM CDT FRI JUN 19 2009

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

0200 PM     HAIL             3 S DES MOINES INT AIRP 41.49N 93.65W
06/19/2009  M0.88 INCH       WARREN             IA   TRAINED SPOTTER

            ESTIMATED 50 MPH WIND GUST

&&

PODRAZIK

Special weather statement, Jun 19, 2:17 PM CDT, 1 hour 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
217 PM CDT FRI JUN 19 2009

IAZ060-061-191945-
JASPER-POLK-
217 PM CDT FRI JUN 19 2009

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL JASPER AND SOUTHEASTERN
POLK COUNTIES UNTIL 245 PM CDT...

AT 217 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 6 MILES EAST OF PLEASANT HILL...OR 11 MILES EAST
OF DES MOINES...MOVING NORTHEAST AT 45 MPH.

NICKEL SIZE HAIL...AND WINDS IN EXCESS OF 45 MPH ARE EXPECTED WITH
THIS STORM.

THIS STORM WILL BE NEAR...
  PRAIRIE CITY AND COLFAX BY 230 PM CDT.
  LAMBS GROVE BY 240 PM CDT.
  NEWTON AND NEWTON AIRPORT BY 245 PM CDT.

COGIL

Special weather statement, Jun 19, 2:47 PM CDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
247 PM CDT FRI JUN 19 2009

IAZ061-192015-
JASPER-
247 PM CDT FRI JUN 19 2009

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN JASPER COUNTY UNTIL
315 PM CDT...

AT 247 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR NEWTON...OR 28 MILES EAST OF DES MOINES...
MOVING NORTHEAST AT 30 MPH.

NICKEL SIZE HAIL...AND WINDS IN EXCESS OF 45 MPH ARE EXPECTED WITH
THIS STORM.

Local storm report, Jun 19, 2:56 PM CDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
256 PM CDT FRI JUN 19 2009

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

0247 PM     HAIL             NEWTON                  41.70N 93.05W
06/19/2009  M0.88 INCH       JASPER             IA   AMATEUR RADIO

0250 PM     HAIL             3 WNW NEWTON AIRPORT    41.68N 93.08W
06/19/2009  E0.88 INCH       JASPER             IA   LAW ENFORCEMENT

0252 PM     HAIL             2 NNW NEWTON AIRPORT    41.70N 93.03W
06/19/2009  E0.88 INCH       JASPER             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
Jun 19, 4:32 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Carroll, Guthrie	43 min
Jun 19, 4:43 AM CDT	Severe Thunderstorm Warning	DMX	Cass	37 min
Jun 19, 5:57 AM CDT	Severe Thunderstorm Warning	DMX	Grundy, Hamilton, Hardin, Marshall, Story	48 min
Jun 19, 6:24 AM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Poweshiek, Tama	51 min
Jun 19, 6:27 AM CDT	Severe Thunderstorm Warning	DMX	Marshall, Tama	48 min
Jun 19, 6:40 AM CDT	River Flood Warning	DMX	Madison, Warren	48 hr
Jun 19, 7:14 AM CDT	Severe Thunderstorm Warning	DMX	Tama	16 min
Jun 19, 3:09 PM CDT	Areal Flood Advisory	DMX	Clarke, Madison, Polk, Union, Warren	3 hr
Jun 19, 3:13 PM CDT	Areal Flood Advisory	DMX	Black Hawk, Decatur, Wayne	59 hr
Jun 19, 3:52 PM CDT	Areal Flood Advisory	DMX	Davis, Jasper, Mahaska, Marion, Poweshiek, Wapello	62 hr
Jun 19, 4:15 PM CDT	Severe Thunderstorm Warning	DMX	Davis, Mahaska, Wapello	27 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2009 Every severe thunderstorm warning in 2009

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.