Short wave energy associated with ongoing MCS in Nebraska ejected E/SE, weakening as it approached west-central Indiana. Some afternoon destabilization in the southwest CWA as forecast soundings had CAPE values 1000-1500J/kg.
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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 IWX wrote it up.
Short wave energy associated with ongoing MCS in Nebraska ejected E/SE, weakening as it approached west-central Indiana. Some afternoon destabilization in the southwest CWA as forecast soundings had CAPE values 1000-1500J/kg. Despite limited forcing still had a |severe storm with wind and hail in White County.
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 Northern Indiana wrote its last area forecast discussion before the first event at Jul 11, 1:09 PM EST, 52 minutes earlier.
Area Forecast Discussion National Weather Service Northern Indiana 209 PM EDT Sat Jul 11 2020 .SYNOPSIS... Issued at 1252 PM EDT Sat Jul 11 2020 There is a chance for showers and thunderstorms late this afternoon south of US 30 in Indiana. Dry otherwise into this evening before chances for showers and thunderstorms return later tonight into Sunday. High pressure then builds in early next week with seasonable temperatures. && .SHORT TERM...(This Evening through Sunday) Issued at 208 PM EDT Sat Jul 11 2020 The two systems which are expected to bring precip chances to the area over the next 24 hours are quickly approaching the area. The initial round is associated to a weak shortwave quickly dropping across northern IL. Showers and a few embedded thunderstorms are starting to drop southeastwards into the forecast area, and are expected to remain generally southwest of a Michigan City, IN to Portland, IN. Surface dewpoints have been on the rise in this area which has helped CAPE reach into the 1200-2000 J/kg range as these storms approach. Effect bulk shear continues to hold around 20kt through the evening hours so brief storm organization is possible. As such, agree that a storm could briefly become strong to marginally severe. Relatively straight hodographs point towards strong to damaging wind gusts being the primary hazard with storms. PWATs have been holding around 1.1" to 1.2" so brief heavy downpours are possible, but think storms will be progressive enough to reduce risk of ponding or minor flooding. As the initial shortwave exits around 00z, a MCS associated with the more impressive low upstream over MN, should be approaching the western zones. CAMs have struggled narrowing down the window of this convection entering the western zones with 03z being the earliest and 06z being the latest. The forecast will lean towards the faster guidance as the initial wave has been more progressive than previously indicated. Model guidance shunts the best instability and shear just south and west of the forecast area as these storms enter the forecast area with White County being the exception. MLCAPE around 2000 J/kg and deep layer shear between 30kt and 40kt over White County would be sufficient for storm organization. Further east and north, these parameters are less conducive for severe weather the further north and east you go. Hodographs remain linear so damaging wind gusts remain the primary hazard. PWATs will be on the rise overnight as the MCS approaches so torrential downpours will be possible. This may be enough to cause ponding/minor flooding especially for locations which experience both rounds of storms today. The window for severe is fairly small (ending around 09z at the latest) as conditions become less favorable as the overnight hours progress. Scattered convection is possible across the area for the remainder of the overnight hours and the upper low transitions from diving southeast to more of an eastern motion. This linger the upper low over the forecast area through the first half of the day on Sunday. There is some potential for a strong storm before noon if enough breaks in the cloud cover occur. Overall confidence of strong storms is low given we will quickly find ourselves on the backside of the low. By the early afternoon, clear of any ongoing convection should start moving from WNW to ESE. && .LONG TERM...(Sunday Night through Saturday) Issued at 208 PM EDT Sat Jul 11 2020 Sunday night starts a dry window as ridging builds over the forecast area. With heights aloft building, high temperatures will gradually warm each day. Monday should see highs in the lower 80s with highs on Tuesday reaching the mid to upper 80s. Tuesday night the ridge axis shifts east of the forecast area which could open the area up to storm chances as shortwaves propagate within the southwest flow aloft. Wednesday through the end of the forecast have trended wetter as the ridge remain shunted southwest. Will hold closer to the blend POPs with the continued wetter trend. && .AVIATION...(For the 18Z TAFS through 18Z Sunday Afternoon) Issued at 1252 PM EDT Sat Jul 11 2020 A convective complex is expected to miss both terminals to the wsw later this afternoon with dry/VFR conditions persisting through the early overnight. The next complex and associated shortwave will combine with a front dropping in from the north to provide some chances for showers (and perhaps some thunder) later tonight into Sunday morning across northern IN, though it does appear as if more widespread convection will once again pass wsw of the terminals at this time. && .IWX WATCHES/WARNINGS/ADVISORIES... IN...NONE. MI...NONE. OH...NONE. LM...NONE. && SYNOPSIS...Steinwedel SHORT TERM...CM LONG TERM...CM AVIATION...Steinwedel Visit us at www.weather.gov/iwx Follow us on Facebook...Twitter...and YouTube at: www.facebook.com/NWSNorthernIndiana www.twitter.com/nwsiwx www.youtube.com/NWSNorthernIndiana
Hazardous Weather Outlook National Weather Service Northern Indiana 917 AM EDT Sat Jul 11 2020 INZ004>009-012>018-020-022>027-032>034-MIZ078>081-OHZ001-002-004-005- 015-016-024-025-121330- St. Joseph IN-Elkhart-Lagrange-Steuben-Noble-De Kalb-Starke-Pulaski- Marshall-Fulton IN-Kosciusko-Whitley-Allen IN-White-Cass IN-Miami- Wabash-Huntington-Wells-Adams-Grant-Blackford-Jay-Cass MI- St. Joseph MI-Branch-Hillsdale-Williams-Fulton OH-Defiance-Henry- Paulding-Putnam-Van Wert-Allen OH- 917 AM EDT Sat Jul 11 2020 /817 AM CDT Sat Jul 11 2020/ This Hazardous Weather Outlook is for northern Indiana, southwest Michigan and northwest Ohio. .DAY ONE...Today and tonight. Showers and thunderstorms are expected this afternoon mainly west of HWY 31 before spreading across the area overnight. A strong to marginally severe storm may be possible this afternoon with damaging wind gusts being the primary hazard. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Showers and thunderstorms are expected on Sunday. Severe weather is not anticipated at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. LMZ043-046-121330- New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI- 917 AM EDT Sat Jul 11 2020 This Hazardous Weather Outlook is for the nearshore waters of southeastern Lake Michigan. .DAY ONE...Today and tonight. Showers and thunderstorms are expected this afternoon mainly west of HWY 31 before spreading across the area overnight. A strong to marginally severe storm may be possible this afternoon with damaging wind gusts being the primary hazard. There is a moderate swim risk for Lake Michigan beaches along Berrien and La Porte counties on Sunday. Breaking waves and currents are expected. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Showers and thunderstorms are expected on Sunday. Severe weather is not anticipated at this time. There is a high swim risk for Lake Michigan beaches along Berrien and La Porte counties on Sunday. Life-threatening waves and currents are expected. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. INZ003-MIZ077-121330- La Porte-Berrien- 917 AM EDT Sat Jul 11 2020 /817 AM CDT Sat Jul 11 2020/ This Hazardous Weather Outlook is for northern Indiana and southwest Michigan. .DAY ONE...Today and tonight. There is a chance for showers and thunderstorms tonight. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Showers and thunderstorms are possible on Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Northern Indiana
248 PM EDT Sat Jul 11 2020
INZ020-111930-
White-
248 PM EDT Sat Jul 11 2020
...A STRONG THUNDERSTORM WILL AFFECT WHITE COUNTY...
At 248 PM EDT, a strong thunderstorm was located near Remington, or
near Rensselaer, moving southeast at 35 mph.
Wind gusts up to 50 mph and half inch hail are possible with this
storm.
Locations impacted include...
Monticello, Monon, Brookston, Wolcott, Reynolds, Chalmers,
Burnettsville, Badger Grove, Smithson, Lee, Golden Hill, Indiana
Beach, Norway, Idaville and Cedar Point.
This includes Interstate 65 between mile markers 185 and 198.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4084 8710 4084 8699 4091 8699 4091 8694
4076 8658 4074 8658 4074 8675 4073 8676
4072 8675 4071 8676 4070 8676 4069 8675
4068 8676 4068 8674 4066 8678 4056 8677
4057 8710
TIME...MOT...LOC 1848Z 304DEG 29KT 4083 8715
HAIL...0.50IN
WIND...50MPH
BrownThe Chicago radar (KLOT), 128 km away, was scanning. The volume nearest the first event began at 19:00 UTC.
4 thunderstorm wind. Local standard time, as filed.
Large limb broke off healthy tree and entangled in power line. Limb was 10 to 12 inches in diamater. Time estimated from radar.
WLFI relayed report of crop damage from wind and hail.
EM reported downed trees, limbs, and power lines in town.
WLFI relayed reports of lots of trees and limbs downed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2020Every state in 2020This day in weather historyWarnings in Indiana, July 2020
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: 908797, 908800, 908802, 908804.