A thunderstorm produced damaging winds that blew down power lines at Danbury in Woodbury County in northwest Iowa during the evening of July 5th.
Every event with a place to put it. Tap one for its entry below.
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 FSD wrote it up.
A thunderstorm produced damaging winds that blew down power lines at Danbury in Woodbury County in northwest Iowa during the evening of July 5th.
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 Sioux Falls, SD wrote its last area forecast discussion before the first event at Jul 5, 5:27 PM CST, 4 hours 24 minutes earlier.
Area Forecast Discussion National Weather Service Sioux Falls SD 627 PM CDT TUE JUL 5 2016 .SHORT TERM...(This evening through Wednesday) Issued at 340 PM CDT Tue Jul 5 2016 Surge of lower to mid 70s dewpoints has pushed into the eastern two- thirds of the FSD CWA by early afternoon. This generally a result of strong cap in place across the area, a very unstable mid-level layer which has kept spotty ACCAS showers and storms across the southern portions of the CWA through the day. Clouds have somewhat limited the warming potential as well, enhancing the strength of the surface- based cap, but perhaps helping to partially erode some of the warm layer aloft with evaporative cooling for some locations. Focus for tonight is on the severe weather threat. Convection has initiated in the last hour just to the east of KPIR, in area of lift noted pushing out across western South Dakota along disturbance on tail of wave moving along the International Border. Temps a touch cooler in mid-levels as well toward northwestern CWA, but from near- surface conditions, the storm remains somewhat elevated in trailing the triple point near surface wave northeast of KHON. Lift with this wave likely to favor more northern portions of the frontal and post- frontal convergence axes, but eventually shear in the 0-3km layer suggests enough organization that should be able to overcome the cap and progress east/southeast into a very potentially unstable air mass. Threats would start primarily as hail and wind, perhaps an isolated tornado closer to Highway 14, but organization into more linear structures suggesting a shift toward a higher wind threat with smaller hail sizes. Winds perhaps as high as 80 to 90 mph north of Interstate 90. DCAPE with the steep off-surface lapse rates very high. Given large potential CAPE, hail up to 2 inches in diameter likely in initial supercell storms toward the northern CWA. By 03-04z, likely that outflow reinforced frontal boundary likely to push into the far southern CWA. As secondary energy slides across Nebraska, will likely see resurgence of some convection moving east northeast toward the lower Missouri valley and northwest Iowa a couple hours after initial frontal convection. These storms would have a lesser threat, but still could produce some isolated severe hail or wind through 06-07z. For Wednesday, moist and unstable air with strong east/west banding spreads back northwest and north into and across the Missouri River area, but it appears that despite MLCAPE headed back up to 2000-4000 J/kg, decent CIN of 100-200 J/kg will hold off storms for most of the day. The boundary at the surface will be diffuse, but enough cooling tonight is expected to hold high temperatures Wednesday to the 85 to 90 range, and that will help prevent much if any initiation of storms during the day. However, there will be some chance west of the James River by the end of the day, in line with development of severe storms west of our forecast area as projected by SPC. .LONG TERM...(Wednesday night through Tuesday) Issued at 340 PM CDT Tue Jul 5 2016 Scattered to numerous storms should spread over the area from the west Wednesday night, with existing storms, possibly in the form of an MCS, taking advantage of the continuing strong CAPE with some becoming severe. Storms will be affecting the area most of the night, with repeat/training storms and some westward propagation of any MCS possible in the very favorable westerly upper flow over the lower level thermal and moisture banding. A decent mid level short wave, which has been shown by models the past couple of days, will be moving over the area during the night and will aid continued development. Locally heavy rain and possibly even flash flooding still appears to be a threat along with severe weather, but the likely complicated convective pattern seems to prohibit defining a greatest threat for now, and that threat could even be north of the greatest severe threat. No flash flood watch for now, especially given the recent fairly dry weather, but we will see if the threat will become better defined in the next 12 to 24 hours. Low temperatures Wednesday night will vary from the mid 60s north to around 70 along the Missouri River. Thursday will bring the arrival of a trough and cold front on the heels of Wednesday night activity, and MLCAPE again up to 4000 J/kg over the southeast part of the area. A risk of severe as depicted by SPC seems right, especially given the decent dynamics provided by the upper trough. High temperatures should be in the 80s area wide. The EC has come around some to the cooler weather for friday, followed by slow but steady warming from the west over the weekend into early next week, as an upper ridge builds over the plains ahead of an unusually strong July Pacific coast trough. Decent drying should survive a couple of days of warm advection, with the chance of storms reappearing very slowly late in the weekend into early next week, as the moisture only slowly returns. With the upper ridge developing between upper troughs, instead of building strongly north from the southwest and southern plains, the warming should be modest, with a return to 90s hard to come by. && .AVIATION...(For the 00Z TAFS through 00Z Wednesday evening) Issued at 628 PM CDT Tue Jul 5 2016 Scattered TSRA Interstate 29 and east...briefly numerous in southwest MN...will decrease from the west thru 06/06z. brief local visibility 3-5sm and gusts to 40 knots in and near TSRA. Otherwise generally vfr through 07/00z except local visibility 3-5sm/BR Interstate 29 and east 06/09z-14z. isolated to scattered TSRA may develop west of the James River from HON to YKN and west after 06/18z. && .FSD Watches/Warnings/Advisories... SD...None. MN...None. IA...None. NE...None. && SHORT TERM...Chapman LONG TERM... AVIATION...
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 856 PM CDT TUE JUL 5 2016 IAZ003-013-014-020>022-031-032-NEZ013-014-SDZ071-070200- DICKINSON-O'BRIEN-CLAY IA-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY- IDA-DIXON-DAKOTA-UNION- 856 PM CDT TUE JUL 5 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST IOWA...WEST CENTRAL IOWA...NORTHEAST NEBRASKA AND SOUTHEAST SOUTH DAKOTA. .DAY ONE...TONIGHT THERE IS A CHANCE OF ADDITIONAL THUNDERSTORM DEVELOPMENT UNTIL AROUND 2 AM. AN ISOLATED STRONG TO SEVERE STORM REMAINS POSSIBLE...WITH HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THUNDERSTORMS ARE EXPECTED TO DEVELOP AGAIN WEDNESDAY EVENING. WHILE THUNDERSTORM COVERAGE WILL LIKELY BE HIGHER...THE SEVERE THREAT WILL BE MORE ISOLATED. HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 70 MPH WILL BE POSSIBLE. HEAVY RAIN WILL ALSO BE POSSIBLE. THURSDAY WILL BRING ANOTHER ROUND OF POTENTIAL SEVERE WEATHER. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE POSSIBLE TONIGHT. IAZ001-002-012-MNZ081-089-090-098-SDZ050-063>070-070200- LYON IA-OSCEOLA-SIOUX-COTTONWOOD-NOBLES-JACKSON-ROCK-GREGORY- CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN SD-BON HOMME- YANKTON-CLAY SD- 856 PM CDT TUE JUL 5 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST IOWA...SOUTHWEST MINNESOTA...SOUTH CENTRAL SOUTH DAKOTA AND SOUTHEAST SOUTH DAKOTA. .DAY ONE...TONIGHT THERE IS A SMALL CHANCE OF ADDITIONAL THUNDERSTORMS DEVELOPMENT UNTIL AROUND 2 AM. THE RISK OF SEVERE WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THUNDERSTORMS ARE EXPECTED TO DEVELOP AGAIN WEDNESDAY EVENING. WHILE THUNDERSTORM COVERAGE WILL LIKELY BE HIGHER...THE SEVERE THREAT WILL BE MORE ISOLATED. HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 70 MPH WILL BE POSSIBLE. HEAVY RAIN WILL ALSO BE POSSIBLE. THURSDAY WILL BRING ANOTHER ROUND OF POTENTIAL SEVERE WEATHER. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT. MNZ071-072-080-097-SDZ038>040-052>062-070200- LINCOLN MN-LYON MN-MURRAY-PIPESTONE-BEADLE-KINGSBURY-BROOKINGS- JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-AURORA-DAVISON-HANSON- MCCOOK-MINNEHAHA- 856 PM CDT TUE JUL 5 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST MINNESOTA...CENTRAL SOUTH DAKOTA...EAST CENTRAL SOUTH DAKOTA... SOUTH CENTRAL SOUTH DAKOTA AND SOUTHEAST SOUTH DAKOTA. .DAY ONE...TONIGHT HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THUNDERSTORMS ARE EXPECTED TO DEVELOP AGAIN BY WEDNESDAY EVENING. WHILE THUNDERSTORM COVERAGE WILL LIKELY BE HIGHER...THE SEVERE THREAT WILL BE MORE ISOLATED. HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 70 MPH WILL BE POSSIBLE. HEAVY RAIN WILL ALSO BE POSSIBLE. THURSDAY WILL BRING ANOTHER ROUND OF POTENTIAL SEVERE WEATHER. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
513 PM CDT TUE JUL 5 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0445 PM HAIL BADGER 44.49N 97.21W
07/05/2016 E1.00 INCH KINGSBURY SD TRAINED SPOTTER
.
&&
AFPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
520 PM CDT TUE JUL 5 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0453 PM HAIL 5 N ARLINGTON 44.43N 97.13W
07/05/2016 E0.75 INCH BROOKINGS SD TRAINED SPOTTER
TIME ESTIMATED FROM RADAR.
&&
AFPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
534 PM CDT TUE JUL 5 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0531 PM HAIL 5 N BROOKINGS 44.38N 96.79W
07/05/2016 E1.75 INCH BROOKINGS SD TRAINED SPOTTER
.
&&
AFPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
619 PM CDT TUE JUL 5 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0611 PM HAIL MINNEOTA 44.56N 95.98W
07/05/2016 E1.00 INCH LYON MN LAW ENFORCEMENT
.
&&
AFPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
627 PM CDT TUE JUL 5 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0420 PM HAIL 4 S WOLSEY 44.36N 98.48W
07/05/2016 M2.00 INCH BEADLE SD PUBLIC
SOCIAL MEDIA REPORT.
&&
AFPRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE SIOUX FALLS SD
752 PM CDT TUE JUL 5 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0611 PM HAIL MINNEOTA 44.56N 95.98W
07/05/2016 E1.00 INCH LYON MN LAW ENFORCEMENT
.
0531 PM HAIL 5 N BROOKINGS 44.38N 96.79W
07/05/2016 E1.75 INCH BROOKINGS SD TRAINED SPOTTER
.
0453 PM HAIL 5 N ARLINGTON 44.43N 97.13W
07/05/2016 E0.75 INCH BROOKINGS SD TRAINED SPOTTER
TIME ESTIMATED FROM RADAR.
0450 PM HAIL 10 SSE HURON 44.23N 98.14W
07/05/2016 E1.75 INCH BEADLE SD TRAINED SPOTTER
.
0449 PM HAIL BADGER 44.48N 97.21W
07/05/2016 E0.75 INCH KINGSBURY SD TRAINED SPOTTER
.
0445 PM HAIL BADGER 44.49N 97.21W
07/05/2016 E1.00 INCH KINGSBURY SD TRAINED SPOTTER
.
0425 PM TSTM WND GST 2 WNW VIRGIL 44.30N 98.46W
07/05/2016 E60 MPH BEADLE SD TRAINED SPOTTER
.
0425 PM HAIL 2 WNW VIRGIL 44.30N 98.46W
07/05/2016 E1.75 INCH BEADLE SD TRAINED SPOTTER
.
0420 PM HAIL 4 S WOLSEY 44.36N 98.48W
07/05/2016 M2.00 INCH BEADLE SD PUBLIC
SOCIAL MEDIA REPORT.
0420 PM HAIL 3 WNW VIRGIL 44.31N 98.48W
07/05/2016 E2.75 INCH BEADLE SD LAW ENFORCEMENT
RELAYED BY WFO ABR.
0410 PM HAIL 2 SSE WESSINGTON 44.43N 98.68W
07/05/2016 E1.00 INCH BEADLE SD CO-OP OBSERVER
.
0405 PM HAIL 2 ESE WESSINGTON 44.44N 98.66W
07/05/2016 E0.88 INCH BEADLE SD EMERGENCY MNGR
RELAYED BY WFO ABR.
&&
NWS SIOUX FALLS SD
IRIS SYSTEMThe Omaha radar (KOAX), 115 km away, was scanning. The volume nearest the first event began at 03:50 UTC.
1 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds blew down power lines.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2016Every state in 2016This day in weather historyWarnings in Iowa, July 2016
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: 648245.