A lone severe hail report was associated with some storms that trekked across the southern tier of counties in the late AM hours.
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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 DMX wrote it up.
A lone severe hail report was associated with some storms that trekked across the southern tier of counties in the late AM hours.
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 Des Moines, IA wrote its last area forecast discussion before the first event at Jul 13, 2:08 PM CST, 1 hour 42 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DES MOINES IA 308 PM CDT MON JUL 13 2015 .SHORT TERM /TONIGHT/... ISSUED AT 307 PM CDT MON JUL 13 2015 WEAK BOUNDARY HAS MOVED MOSTLY THROUGH THE FORECAST AREA BRINGING SIGNIFICANTLY LOWER DEWPOINTS. CURRENT HEAT ADVISORY AND WARNING EXPIRE THIS AFTERNOON AND MOST STATIONS WILL BE WELL BELOW CRITERIA BY THEN. KEPT PRECIP CHANCES OUT OF THE FORECAST FOR TONIGHT. NONE OF THE CONVECTIVE ALLOWING MODELS SHOW ANY PRECIP NOR DO THE NAM OR GFS OR EVEN THE SREF PLUMES FROM SPC. LOOKS AGAIN LIKE EVERYTHING WILL STAY EAST OF THIS FORECAST AREA OVERNIGHT. .LONG TERM /TUESDAY THROUGH MONDAY/... ISSUED AT 307 PM CDT MON JUL 13 2015 MAIN FORECAST CONCERN WAS FOCUSED ON PRECIPITATION CHANCES WEDNESDAY INTO THURSDAY AND ANOTHER ROUND OF HOT AND HUMID CONDITIONS LATE IN THE PERIOD. LEANED TOWARD A NAM12/ECMWF/SREF BLEND FOR TUESDAY AND WEDNESDAY...THEN A LITTLE MORE WEIGHT TO THE ECMWF THROUGH THE REST OF THE WEEKEND. TUESDAY INTO THURSDAY...MUCH LESS HUMIDITY IS ANTICIPATED ON TUESDAY BUT TEMPERATURES STILL LOOK TO RISE INTO THE UPPER 80S AND LOWER 90S. A FEW SPOTS MAY REACH HEAT INDEX READINGS TO AROUND 100 BUT NOTHING CLOSE TO ADVISORY LEVEL. WEDNESDAY WILL SEE INCREASING CLOUD COVER WHICH WILL HOLD TEMPERATURES IN THE 80S. DECENT SHORTWAVE TRACKS EAST-NORTHEAST ALONG THE UPPER LEVEL RIDGE BUILDING INTO THE CENTRAL U.S. WEDNESDAY NIGHT INTO THURSDAY. TIMING HAS SLOWED SLIGHTLY AND THUS DELAYED ONSET OF POPS TO WESTERN IOWA AFTER 18Z WEDNESDAY AND ACROSS THE ENTIRE FORECAST AREA AFTER 00Z THURSDAY. ECMWF/NAM ARE SLIGHTLY FURTHER SOUTH WITH THE SHORTWAVE TRACK AND WITH THE HEAVIEST RAIN THAN THE GFS. ECMWF HAS BEEN A LITTLE MORE CONSISTENT BETWEEN MODEL RUNS AND LIKENED THE SOLUTION WHICH RESULTED IN INCREASING POPS OVERNIGHT WEDNESDAY NIGHT INTO THURSDAY. HEAVY RAIN LOOKS TO BE THE MAIN THREAT AS PRECIPITABLE WATER VALUES IN THE RANGE OF 1.5 TO 2.0 INCHES WITH STRONG MOISTURE TRANSPORT AND THETA-E ADVECTION INTO THE STATE PAST 06Z THURSDAY. WARM LAYER CLOUD DEPTHS RANGE FROM 13KFT TO 14KT FEET INTO THURSDAY MORNING SO CERTAINLY SOME EFFICIENT RAIN PRODUCERS CAN BE EXPECTED. INCREASED QPF AMOUNTS BETWEEN 00-12Z THURSDAY. SEVERE POTENTIAL IS LOW WITH MINIMAL INSTABILITY AND SHEAR AVAILABLE WEDNESDAY NIGHT INTO THURSDAY. FRIDAY INTO MONDAY...UPPER LEVEL RIDGE PERSISTS THROUGH THE WEEKEND WITH SOUTHWEST FLOW RETURNING TO THE STATE BY SATURDAY. TRENDED WARMER FOR MAX TEMPS ON SATURDAY WITH DECENT MIXING AND 850MB TEMPS TO +22C TO +23C. DEW POINTS LOOKS TO RISE BACK INTO THE MIDDLE 70S AND MAY HAVE ANOTHER HOT AND HUMID DAY SATURDAY. COLD FRONT/TROUGH MOVE THROUGH THE STATE LATE SATURDAY NIGHT AND PROVIDE ADDITION THUNDERSTORM CHANCES INTO SUNDAY. SLIGHTLY COOLER SUNDAY INTO MONDAY. && .AVIATION...13/18Z ISSUED AT 1246 PM CDT MON JUL 13 2015 ALL TERMINALS WILL REMAIN VFR NEXT 24 HOURS. WIND SHIFT TO NW WINDS AFTER 00Z IS ONLY CHANGES TO ONGOING CONDITIONS. && .DMX WATCHES/WARNINGS/ADVISORIES... HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR ADAIR-ADAMS- AUDUBON-BOONE-CARROLL-CASS-CRAWFORD-DALLAS-GREENE-GUTHRIE-JASPER- MADISON-MARSHALL-POLK-POWESHIEK-RINGGOLD-STORY-TAMA-TAYLOR-UNION. EXCESSIVE HEAT WARNING UNTIL 7 PM CDT THIS EVENING FOR APPANOOSE- CLARKE-DAVIS-DECATUR-LUCAS-MAHASKA-MARION-MONROE-WAPELLO-WARREN- WAYNE. && SHORT TERM...HARDING LONG TERM...PODRAZIK AVIATION...HARDING
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 322 PM CDT MON JUL 13 2015 IAZ073>075-083>086-094>097-142030- WARREN-MARION-MAHASKA-CLARKE-LUCAS-MONROE-WAPELLO-DECATUR-WAYNE- APPANOOSE-DAVIS- 322 PM CDT MON JUL 13 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...THIS AFTERNOON AND TONIGHT HEAT INDEX VALUES MAY REACH 105 TO 115 THIS AFTERNOON. AN EXCESSIVE HEAT WARNING IS IN EFFECT FOR THE AREA. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THUNDERSTORM CHANCES RETURN TO THE FORECAST FROM LATE WEDNESDAY THROUGH THURSDAY NIGHT...AND ALSO FROM SATURDAY NIGHT INTO SUNDAY. THE SEVERE WEATHER POTENTIAL IS LOW AT THIS TIME...HOWEVER STORMS WEDNESDAY INTO THURSDAY MAY PRODUCE HEAVY RAINS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT LIKELY AT THIS TIME. IAZ044>050-057>062-070>072-081-082-092-093-142030- CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE- DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-ADAMS-UNION- TAYLOR-RINGGOLD- 322 PM CDT MON JUL 13 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...THIS AFTERNOON AND TONIGHT HEAT INDEX VALUES WILL CONTINUE TO RANGE IN THE 103 TO 108 DEGREE RANGE THROUGH THE EARLY EVENING. A HEAT ADVISORY IS IN EFFECT FOR THE AREA. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THUNDERSTORM CHANCES RETURN TO THE FORECAST FROM LATE WEDNESDAY THROUGH THURSDAY NIGHT...AND ALSO FROM SATURDAY NIGHT INTO SUNDAY. THE SEVERE WEATHER POTENTIAL IS LOW AT THIS TIME...HOWEVER STORMS WEDNESDAY INTO THURSDAY MAY PRODUCE HEAVY RAINS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT LIKELY AT THIS TIME. IAZ004>007-015>017-023>028-033>039-142030- EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK- 322 PM CDT MON JUL 13 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THUNDERSTORM CHANCES RETURN TO THE FORECAST FROM LATE WEDNESDAY THROUGH THURSDAY NIGHT...AND ALSO OFF AND ON FROM FRIDAY INTO THE WEEKEND. THE SEVERE WEATHER POTENTIAL IS LOW AT THIS TIME...HOWEVER STORMS WEDNESDAY INTO THURSDAY MAY PRODUCE HEAVY RAINS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT LIKELY AT THIS TIME. KLP
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 415 PM CDT MON JUL 13 2015 IAZ094-132145- DECATUR IA- 415 PM CDT MON JUL 13 2015 ...STRONG THUNDERSTORM PUSHING SOUTH... AT 414 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR LAMONI...OR 12 MILES SOUTHWEST OF LEON...MOVING EAST AT 15 MPH. NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... LAMONI...DAVIS CITY...PLEASANTON...LAMONI MUNICIPAL AIRPORT AND NINE EAGLES STATE PARK. THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. LAT...LON 4070 9394 4063 9356 4058 9356 4058 9399 TIME...MOT...LOC 2114Z 287DEG 15KT 4060 9389 AWB
The Des Moines radar (KDMX), 123 km away, was scanning. The volume nearest the first event began at 21:51 UTC.
1 hail. Local standard time, as filed.
Trained spotter reported at least half dollar sized hail, and noted some may be larger.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2015Every state in 2015This day in weather historyWarnings in Iowa, July 2015
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: 585472.