An isolated slow moving thunderstorm developed on a weak boundary in west central Iowa. Due to moderately high instability present the storm produced a relatively prolonged period of hail in the Persia area.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS OAX wrote it up.
An isolated slow moving thunderstorm developed on a weak boundary in west central Iowa. Due to moderately high instability present the storm produced a relatively prolonged period of hail in the Persia area.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Omaha, NE wrote its last area forecast discussion before the first event at Jun 17, 2:12 PM CST, 5 hours 10 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 312 PM CDT FRI JUN 17 2011 .SHORT TERM...TONIGHT THROUGH MONDAY. SURFACE COLD FRONT MOVING THROUGH THE AREA THIS AFTERNOON WILL STALL OUT ACROSS KANSAS AND MISSOURI ON SATURDAY THEN BEGIN TO LIFT NORTH AS A WARM FRONT SUNDAY INTO MONDAY. PERIODS OF THUNDERSTORMS LIKELY DURING THIS TIME WITH STEEP MID LEVEL LAPSE RATES AND GOOD MOISTURE IN PLACE NEAR THE BOUNDARY. EASTERN PARTS OF THE CWA HAVE SOME CHANCE THIS EVENING WITH THE COLD FRONT IN THE AREA BUT THEN EXPECT MAINLY DRY CONDITIONS ON SATURDAY INTO THE FIRST PART OF SUNDAY AS THE FRONT SETTLES SOUTH OF THE AREA ACROSS KANSAS AND MISSOURI. INCREASING POPS RETURN BY SUNDAY NIGHT AND EXTEND THROUGH MONDAY AS THIS BOUNDARY WORKS ITS WAY NORTH AS A WARM FRONT AND WESTERN TROUGH DEEPENS WITH CLOSED LOW DEVELOPING OVER THE WESTERN HIGH PLAINS BY MONDAY. POTENTIAL FOR HEAVY RAIN WILL EXIST ON THE NORTH SIDE OF THE WARM FRONT SUNDAY NIGHT WITH MCS DEVELOPMENT ACROSS NEBRASKA AS LOW LEVEL JET KICKS IN. ACTUAL FRONTAL POSITION WILL BE THE MAIN UNCERTAINTY DURING THIS TIME WITH TEMPERATURES AND STORM CHANCES HIGHLY DEPENDANT ON THE LOCATION OF THE BOUNDARY. .LONG TERM...MONDAY NIGHT THROUGH FRIDAY. SAME SYSTEM HANGS AROUND THE CENTRAL PLAINS REGION INTO THE MIDDLE OF THE WEEK AS CLOSED UPPER LOW TRACKS SLOWLY EAST ACROSS THE REGION. THIS WILL ALLOW FOR A CONTINUED THREAT OF RAIN AND THUNDERSTORMS FOR THE AREA BEFORE THE UPPER SYSTEM MOVES EAST ON WEDNESDAY. HIGH PRESSURE FOLLOWS WEDNESDAY NIGHT INTO THURSDAY WITH LESS CERTAINTY POPS BEYOND THURSDAY AS LEE TROUGH DEVELOPS AND WARM ADVECTION RETURNS TO THE WESTERN HIGH PLAINS. && .AVIATION... TAF SITES KOFK/KOMA/KLNK 18Z TAFS COLD FRONT MOVING THROUGH TAF SITES WILL BRING A WIND SHIFT TO KLNK/KOMA BY 21Z. WEAKENING CAP IN THE ATMOSPHERE COULD BE BROKEN BY 23Z AT KOMA/KLNK TO ALLOW THUNDERSTORMS AT THOSE TWO SITES...BUT THEN PUSHING SOUTH/EAST THROUGH THE REMAINDER OF THE EVENING. VFR CONDITIONS EXPECTED THROUGH THE PERIOD. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...NONE. IA...NONE. && FOBERT/DEWALD
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 415 PM CDT FRI JUN 17 2011 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-181115- MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT- PAGE-KNOX-CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON- STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER- SAUNDERS-DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-SALINE- JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON- 415 PM CDT FRI JUN 17 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST IOWA...WEST CENTRAL IOWA...EAST CENTRAL NEBRASKA...NORTHEAST NEBRASKA AND SOUTHEAST NEBRASKA. .DAY ONE...TONIGHT AND SATURDAY SCATTERED THUNDERSTORMS MAY DEVELOP THIS EVENING ALONG A COLD FRONT WHICH IS STALLED OVER EXTREME EASTERN NEBRASKA LATE THIS AFTERNOON. MODERATE TO STRONG INSTABILITY REMAINS IN PLACE AHEAD OF THE FRONT OVER FAR EASTERN NEBRASKA AND SOUTHWEST IOWA AND ISOLATED SEVERE WEATHER WILL BE POSSIBLE IN THIS AREA THIS EVENING. LARGE HAIL AND DAMAGING WINDS ARE EXPECTED TO BE THE MAIN THREATS THROUGH THE EVENING. MODERATE TO MAJOR FLOODING WILL CONTINUE ALONG THE MISSOURI RIVER RESULTING IN NUMEROUS ROADS REMAINING CLOSED NEAR THE RIVER. .DAYS TWO THROUGH SEVEN...SATURDAY NIGHT THROUGH FRIDAY THE THREAT OF THUNDERSTORMS WILL RETURN TO THE AREA SATURDAY NIGHT THROUGH TUESDAY AS A SERIES OF STORM SYSTEMS MOVE THROUGH THE REGION. SEVERE WEATHER WILL BE POSSIBLE DURING THAT TIME FRAME...ESPECIALLY FROM SUNDAY NIGHT THROUGH MONDAY NIGHT. MODERATE TO MAJOR FLOODING WILL CONTINUE ALONG THE MISSOURI RIVER THROUGH THE REMAINDER OF THE SUMMER. .SPOTTER INFORMATION STATEMENT... WIDESPREAD SPOTTER ACTIVATION IS GENERALLY NOT EXPECTED TONIGHT OR SATURDAY...BUT PLEASE REPORT SEVERE WEATHER IF IT OCCURS IN YOUR AREA. FOBERT
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
748 PM CDT FRI JUN 17 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0747 PM HAIL 1 N CEDAR BLUFFS 41.41N 96.61W
06/17/2011 M1.75 INCH SAUNDERS NE PUBLIC
&&
RCHERMOKPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
749 PM CDT FRI JUN 17 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0749 PM HAIL FREMONT 41.44N 96.49W
06/17/2011 M0.88 INCH DODGE NE EMERGENCY MNGR
DIME AND NICKEL SIZE HAIL WEST SIDE OF TOWN.
&&
RCHERMOKPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
758 PM CDT FRI JUN 17 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0756 PM HAIL CEDAR BLUFFS 41.40N 96.61W
06/17/2011 E2.00 INCH SAUNDERS NE LAW ENFORCEMENT
HAIL NOW A LITTLE LARGER THAN GOLF BALL SIZE. HAIL HAS
LASTED FOR AT LEAST 10 MINUTES AND WAS CAUSING
SIGNIFICANT DAMAGE IN TOWN.
&&
RCHERMOKPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
811 PM CDT FRI JUN 17 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 PM HAIL 2 WSW FREMONT 40.64N 97.32W
06/17/2011 E1.00 INCH SALINE NE TRAINED SPOTTER
STREET FLOODING ALSO REPORTED IN FREMONT WITH WATER TO
NEAR CURB LEVEL.
&&
JBPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
818 PM CDT FRI JUN 17 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0812 PM HAIL 3 SE CEDAR BLUFFS 41.37N 96.57W
06/17/2011 M1.50 INCH SAUNDERS NE AMATEUR RADIO
&&
RCHERMOKPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
822 PM CDT FRI JUN 17 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0821 PM HAIL 3 SE CEDAR BLUFFS 41.37N 96.57W
06/17/2011 E0.75 INCH SAUNDERS NE AMATEUR RADIO
HAIL HAS SHRUNK TO AROUND DIME SIZE BUT WAS ACCUMULATING
ON THE GROUND SIGNIFICANTLY.
&&
RCHERMOKThe Omaha radar (KOAX), 72 km away, was scanning. The volume nearest the first event began at 01:21 UTC.
1 hail. Local standard time, as filed.
Hail up to quarter-size fell for an extended period in the Persia area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2011Every state in 2011This day in weather historyWarnings in Iowa, June 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 300828.