A complex of thunderstorms moved out of northern Indiana into Cass county, producing damaging winds in Vandalia.
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 IWX wrote it up.
A complex of thunderstorms moved out of northern Indiana into Cass county, producing damaging winds in Vandalia.
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 1, 7:10 PM EST, 1 hour 5 minutes earlier.
Area Forecast Discussion National Weather Service Northern Indiana 810 PM EDT Sun Jul 1 2018 .SYNOPSIS... Issued at 302 PM EDT Sun Jul 1 2018 Hot and humid this afternoon. An isolated strong to severe storm is possible toward mid evening west of US 31 with a few showers or thunderstorms possible overnight elsewhere. Lows tonight will range in the lower 70s. && .SHORT TERM...(Tonight and Monday) Issued at 302 PM EDT Sun Jul 1 2018 Primary concern relegated to decaying sfc front pushing out of IL this evening. 12Z gross trend similar with prior guidance in collapsing frontal scale circulation across wrn zones mid to late evening before washing out through cntrl zones aft midnight as parent sw disturbance lifting well nw through MN. Convective processes within line of storms over wrn IL might carry left overs a bit further east this evening otherwise better low level forcing may manifest toward daybreak from cntrl-ern zones in association with modest low level jet juxtaposed within H85 theta-e ridge. Nevertheless given even trends in guidance a general reduction in pops made overnight. Stalled left over frontal zone and diurnal destabilization may initiate isolated storms se half Mon aftn in prolixity to low level theta-e plume before low level flow weakens late. && .LONG TERM...(Tuesday through Saturday) Issued at 302 PM EDT Sun Jul 1 2018 Upper ridge over the wrn atlantic to start will slowly retrograde wwd into the cntrl plains by early Fri. Nrn stream sw disturbance digs into the nrn Rockies Tue as high plains cyclogenesis commences. Some downstream influence noted here with backing low level flow to serly and with plume of unstable low level theta-e still in place cant argue for at least an isold pop mention however bulk boundary layer moisture flux remains weak and does not justify high chance pops. Thereafter upper ridge builds in earnest esp Wed-Thu. Warming mid level temps along with erosion of low level theta-e ridge and anemic flow aloft in aggregate suggest dry/hot and humid. Rockies disturbance kicks out into srn Canada Wed and into wrn QB early Fri. Attendant sfc trough washes out across the lakes but with some flattening of upper ridge. This will allow for some decent airmass exchange next weekend with much drier and seasonable air to spread south out of se Canada. && .AVIATION...(For the 00Z TAFS through 00Z Monday Evening) Issued at 809 PM EDT Sun Jul 1 2018 Upper level short wave lifting across the northern Great Lakes this evening will allow a cold front to track across northwest Indiana this evening. This front will tend to slow later this evening into the overnight as upper level wave continues to lift northeast and weakens. Additional isolated to scattered showers and thunderstorms may develop along this sfc trough overnight, possibly affecting KFWA with some lingering elevated instability. Will likely include VCTS/TEMPO SHRA at KSBN in the 00Z-02Z timeframe and will monitor near term trends for possible TSRA inclusion at KFWA later this evening. Storms at KSBN through 02Z may be accompanied by some wind gusts to 30 to 40 knots. Mainly dry conditions are expected for the terminals on Monday as sfc boundary gets slowly suppressed southward. && .IWX WATCHES/WARNINGS/ADVISORIES... IN...NONE. MI...NONE. OH...NONE. LM...NONE. && SYNOPSIS...T SHORT TERM...T LONG TERM...T AVIATION...Marsili 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 906 PM EDT Sun Jul 1 2018 INZ003-004-012>015-020-022-MIZ077-078-030115- La Porte-St. Joseph IN-Starke-Pulaski-Marshall-Fulton IN-White- Cass IN-Berrien-Cass MI- 906 PM EDT Sun Jul 1 2018 /806 PM CDT Sun Jul 1 2018/ This hazardous weather outlook is for portions of southwest Michigan and northern Indiana. .DAY ONE...Tonight The Excessive Heat Warning has been allowed to expire. An isolated strong thunderstorm capable of producing wind gusts to 40 mph is possible along and west of US 31 through midnight. Brief heavy downpours may result in some localized ponding of water on roadways this evening across these locations. .DAYS TWO THROUGH SEVEN...Monday through Saturday A low chance of thunderstorms exists Tuesday afternoon. Afternoon heat indices of 95 to 100 are expected Tuesday through Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected tonight. && Stay tuned to NOAA Weather Radio for further details or updates...or check our web site at weather.gov/iwx INZ005>009-016>018-023>027-032>034-MIZ079>081-OHZ001-002-004-005-015- 016-024-025-030115- Elkhart-Lagrange-Steuben-Noble-De Kalb-Kosciusko-Whitley-Allen IN- Miami-Wabash-Huntington-Wells-Adams-Grant-Blackford-Jay- St. Joseph MI-Branch-Hillsdale-Williams-Fulton OH-Defiance-Henry- Paulding-Putnam-Van Wert-Allen OH- 906 PM EDT Sun Jul 1 2018 This hazardous weather outlook is for portions of northern Indiana... southwest Michigan and northwest Ohio. .DAY ONE...Tonight The Excessive Heat Warning has been allowed to expire. There is a chance of thunderstorms. Severe weather is not expected. .DAYS TWO THROUGH SEVEN...Monday through Saturday A low chance of thunderstorms exists Tuesday afternoon. Afternoon heat indices of 95 to 100 are expected Tuesday through Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected tonight. && Stay tuned to NOAA Weather Radio for further details or updates...or check our web site at weather.gov/iwx LMZ043-046-030115- New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI- 906 PM EDT Sun Jul 1 2018 This hazardous weather outlook is for portions of The Nearshore Waters of Southeastern Lake Michigan. .DAY ONE...Tonight An isolated thunderstorm is possible. Severe weather is not expected. .DAYS TWO THROUGH SEVEN...Monday through Saturday A low chance of thunderstorms exists Tuesday afternoon. && Stay tuned to NOAA Weather Radio for further details or updates...or check our web site at weather.gov/iwx
Special Weather Statement
National Weather Service Northern Indiana
702 PM EDT SUN JUL 1 2018
MIZ077-012330-
Berrien-
702 PM EDT SUN JUL 1 2018
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN BERRIEN COUNTY...
At 658 PM EDT, a strong thunderstorm was located near St. Joseph,
moving northeast at 45 mph.
Winds gusts to 50 mph and pea sized hail are possible with this
storm.
Locations impacted include...
Benton Harbor, St. Joseph, Fair Plain, Benton Heights, Watervliet,
Coloma, Stevensville, Lake Michigan Beach, Paw Paw Lake, Riverside,
Shoreham and Millburg.
This includes the following highways...
Interstate 196 between mile markers 0 and 7.
Interstate 94 in Michigan between mile markers 22 and 42.
Seek shelter until this thunderstorm passes.
&&
LAT...LON 4214 8622 4195 8669 4213 8658 4211 8649
4224 8636 4224 8622
TIME...MOT...LOC 2258Z 237DEG 46KT 4209 8662
MARSILISpecial Weather Statement
National Weather Service Northern Indiana
724 PM EDT SUN JUL 1 2018
INZ003-004-MIZ077-020030-
La Porte-St. Joseph-Berrien-
724 PM EDT SUN JUL 1 2018
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT WESTERN ST. JOSEPH...LA
PORTE AND BERRIEN COUNTIES...
At 723 PM EDT/623 PM CDT/, radar indicated strong thunderstorms were
located along a line extending from 10 miles west of St. Joseph to
near Kouts. Movement was northeast at 30 mph.
Winds in excess of 40 mph are possible with these storms.
Locations impacted include...
South Bend, Michigan City, La Porte, Benton Harbor, St. Joseph,
Westville, Buchanan, Trail Creek, Benton Heights, Fair Plain,
Bridgman, Walkerton, North Liberty, New Buffalo, New Carlisle,
Berrien Springs, Watervliet, Three Oaks, Coloma and Kingsford
Heights.
This includes the following highways...
Interstate 196 between mile markers 0 and 7.
Interstate 80 in Indiana between mile markers 38 and 72.
Interstate 94 in Indiana between mile markers 35 and 45.
Interstate 94 in Michigan between mile markers 0 and 42.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4208 8622 4148 8640 4148 8647 4145 8647
4143 8654 4143 8664 4138 8671 4132 8693
4159 8693 4186 8683 4194 8670 4213 8658
4211 8649 4224 8636 4224 8623
TIME...MOT...LOC 2323Z 238DEG 26KT 4213 8669 4129 8698
MARSILISpecial Weather Statement
National Weather Service Northern Indiana
819 PM EDT SUN JUL 1 2018
MIZ077-078-020115-
Berrien-Cass-
819 PM EDT SUN JUL 1 2018
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT WESTERN CASS AND
BERRIEN COUNTIES...
At 818 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Paw Paw Lake to Berrien Springs to
near Buchanan. Movement was east at 25 mph.
Wind gusts of 40 to 50 mph are possible with these storms.
Locations impacted include...
Niles, Benton Harbor, Dowagiac, Buchanan, Benton Heights, Fair Plain,
Berrien Springs, Watervliet, Coloma, Paw Paw Lake, Lake Michigan
Beach, Bertrand, Pokagon, Dayton, Sodus, Riverside, Eau Claire,
Galien, Magician Lake and Dewey Lake.
This includes the following highways...
Interstate 196 between mile markers 0 and 7.
Interstate 94 in Michigan between mile markers 28 and 42.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
Seek shelter until these storms pass.
&&
LAT...LON 4207 8622 4207 8603 4204 8603 4176 8617
4176 8656 4191 8647 4218 8643 4219 8641
4224 8636 4224 8623
TIME...MOT...LOC 0018Z 249DEG 18KT 4223 8632 4193 8633 4177 8643
MARSILISpecial Weather Statement
National Weather Service Northern Indiana
911 PM EDT SUN JUL 1 2018
MIZ078-079-020200-
St. Joseph-Cass-
911 PM EDT SUN JUL 1 2018
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT EASTERN CASS AND
NORTHWESTERN ST. JOSEPH COUNTIES...
At 910 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Decatur to 6 miles east of
Cassopolis to near Simonton Lake. Movement was east at 30 mph.
Winds gusts to 40 mph and pea size hail are possible with these
storms.
Locations impacted include...
Three Rivers, Centreville, Marcellus, Penn, Flowerfield, Vandalia,
Moore Park, Paradise Lake, Calvin Center, Adamsville, Juno Lake,
Donnell Lake, Fishers Lake, Jones, Corey Lake, Shavehead Lake,
Howardsville, Clear Lake and Wakelee.
Brief heavy rainfall is occurring with this storm and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4202 8548 4189 8553 4178 8601 4187 8596
4207 8598 4207 8550
TIME...MOT...LOC 0110Z 247DEG 26KT 4207 8593 4190 8588 4180 8592
MARSILIThe Northern Indiana radar (KIWX), 63 km away, was scanning. The volume nearest the first event began at 01:13 UTC.
1 thunderstorm wind. Local standard time, as filed.
Trained spotter reported several large trees were blown down on the north shore of Donnell Lake. A large tree was also blown down near Lewis Lake.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2018Every state in 2018This day in weather historyWarnings in Michigan, July 2018
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: 771906.