An upper level disturbance moved across northeastern Illinois into northwestern Indiana. A plume of deeper moisture and limited instability was sufficient for a narrow line of showers and storms to form across northwestern Indiana.
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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.
An upper level disturbance moved across northeastern Illinois into northwestern Indiana. A plume of deeper moisture and limited instability was sufficient for a narrow line of showers and storms to form across northwestern Indiana. One of these storms collapsed over the town of LaPorte, causing damage to several trees.
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 May 25, 12:38 PM CST, 4 hours 45 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Northern Indiana 238 PM EDT WED MAY 25 2016 .SYNOPSIS... Issued at 111 PM EDT Wed May 25 2016 A weak trough moving through an unstable airmass over our area tonight is expected to cause scattered showers and thunderstorms. An upper level ridge will move into the area Thursday providing fair weather. Lows tonight will be in the mid 60s with highs Thursday in the lower and middle 80s. It will remain warm and humid through the Memorial Day weekend with chances for showers and thunderstorms continuing... though most of the weekend should be dry. && .SHORT TERM...(This Evening through Thursday) Issued at 235 PM EDT Wed May 25 2016 While ridging conts to dampen acrs the area...lack of discernible forcing and as yet poor mstr rtn hampering any notable precip dvlpmnt acrs the wrn lakes this aftn. MCV advg acrs nrn IA sprtg an arc of isold-sct convn fm ern MN into ne IA and the primary ftr of note shrt term as secondary MCV noted acrs se MO slides ewd through srn IN/nrn KY. 12Z ILX raob alludes to a general hostile environment aloft w/residual warm air in place although some cooling does take place further west twd DVN ahd of apchg mid lvl trough. Thus suspect newd advng ll theta-e ridge and wk ll flw will fail to produce any convn this aftn and have dropped all pop mention sans extreme west ahd of apchg mid lvl trough. Srn spoke of btr low-mid lvl forcing shld graze nw zones this evening and may yet sputter further se within modest theta-e ridge in place hwvr any sense of a consensus model solution sorely lacking. As such and in light of 12Z CAMS trends will sway fm prior likely pops overnight as primary focus aloft shifts up acrs nrn WI. In wake of this sys...largely subsident wrly ll flw overspreads the area on Thu and in light of 12Z mos guidance/trends fail to see any justification to carry a pop mention. && .LONG TERM...(Thursday Night through Wednesday) Issued at 235 PM EDT Wed May 25 2016 General wwd positioning of large scale upr trough and attendant sfc fntl zone points to lackluster chcs for organized rainfall through the pd. No doubt upstream convn w/potential downstream MCS influences complicate the picture...hwvr given stgr mean flw and deeper ll mstr plume remains well west invof of sfc fntl zone through the cntrl plains...it would be careless to embrace derived blended guidance pops which are clearly way overdone. Thus as yda will again cap any one pd to a low chc mention at this point. More fvrbl chcs may arise twd sun aftn/eve pending ewd extent and timing of robust wave lifting up through the midwest. Beyond that upr ridge cntrd ovr the wrn atl xpcd to expand nwd through dy7 and likely to cap off the local environment as new mean troughing dvlps through the wrn US. Otrws seasonably warm and humid conds xpcd through much of the pd. && .AVIATION...(For the 18Z TAFS through 18Z Thursday Afternoon) Issued at 111 PM EDT Wed May 25 2016 Moderate instability has developed over nrn IL this aftn along/ahead of a wk shrtwv/sfc trof. This system expected to move across nrn IN tonight. With just wk instability fcst across ne IN when the shrtwv moves through, just mentioned showers at FWA tonight, with contd mention of tstms at SBN where instability expected to be greater. Low level moistening overnight expected to result in brief mvfr cigs across the area Wed morning... mixing out by midday. && .IWX Watches/Warnings/Advisories... IN...NONE. MI...NONE. OH...NONE. LM...NONE. && SYNOPSIS...JT SHORT TERM...T LONG TERM...T AVIATION...JT 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 246 PM EDT WED MAY 25 2016 INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005- 015-016-024-025-261000- LA PORTE-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-BERRIEN- CASS MI-ST. JOSEPH MI-BRANCH-HILLSDALE-WILLIAMS-FULTON OH-DEFIANCE- HENRY-PAULDING-PUTNAM-VAN WERT-ALLEN OH- INCLUDING THE CITIES OF...MICHIGAN CITY...LA PORTE...SOUTH BEND... MISHAWAKA...NEW CARLISLE...WALKERTON...ELKHART...GOSHEN...NAPPANEE... LAGRANGE...TOPEKA...SHIPSHEWANA...ANGOLA...FREMONT...KENDALLVILLE... LIGONIER...ALBION...AUBURN...GARRETT...KNOX...NORTH JUDSON... BASS LAKE...WINAMAC...FRANCESVILLE...MEDARYVILLE...PLYMOUTH... BREMEN...CULVER...ROCHESTER...AKRON...WARSAW...WINONA LAKE... SYRACUSE...MENTONE...COLUMBIA CITY...TRI-LAKES...SOUTH WHITLEY... FORT WAYNE...NEW HAVEN...MONTICELLO...MONON...BROOKSTON... LOGANSPORT...ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...WABASH... NORTH MANCHESTER...HUNTINGTON...ROANOKE...BLUFFTON...OSSIAN... DECATUR...BERNE...MARION...GAS CITY...UPLAND...HARTFORD CITY... MONTPELIER...PORTLAND...DUNKIRK...NILES...BENTON HARBOR... ST. JOSEPH...FAIR PLAIN...BENTON HEIGHTS...BUCHANAN...PAW PAW LAKE... DOWAGIAC...CASSOPOLIS...MARCELLUS...STURGIS...THREE RIVERS... WHITE PIGEON...MENDON...COLDWATER...BRONSON...HILLSDALE... JONESVILLE...LITCHFIELD...BRYAN...EDGERTON...WAUSEON...ARCHBOLD... SWANTON...DELTA...DEFIANCE...SHERWOOD...HICKSVILLE...NAPOLEON... DESHLER...LIBERTY CENTER...PAULDING...ANTWERP...PAYNE...OTTAWA... LEIPSIC...COLUMBUS GROVE...CONTINENTAL...PANDORA...VAN WERT... OHIO CITY...LIMA...SPENCERVILLE 246 PM EDT WED MAY 25 2016 /146 PM CDT WED MAY 25 2016/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST OHIO... NORTHERN INDIANA AND SOUTHWEST MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT AN ISOLATED THUNDERSTORM IS POSSIBLE THIS EVENING MAINLY NORTHWEST OF A LOGANSPORT TO HILLSDALE LINE. NO SEVERE WEATHER IS EXPECTED. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY ISOLATED TO SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE POSSIBLE FRIDAY THROUGH TUESDAY. NO SEVERE WEATHER IS EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WEATHER.GOV/IWX LMZ043-046-261000- NEW BUFFALO MI TO ST JOSEPH MI-MICHIGAN CITY IN TO NEW BUFFALO MI- 246 PM EDT WED MAY 25 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NEARSHORE WATERS OF SOUTHEASTERN LAKE MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE LATE THIS AFTERNOON AND EVENING. NO SEVERE WEATHER IS EXPECTED. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY ISOLATED TO SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE POSSIBLE FRIDAY THROUGH TUESDAY. NO SEVERE WEATHER IS EXPECTED. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR CHECK OUR WEB SITE AT WEATHER.GOV/IWX
The Northern Indiana radar (KIWX), 89 km away, was scanning. The volume nearest the first event began at 23:23 UTC.
1 thunderstorm wind. Local standard time, as filed.
The public reported several large trees and tree limbs were either snapped or uprooted in the town of LaPorte. As least 1 vehicle was impacted by a large branch.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2016Every state in 2016This day in weather historyWarnings in Indiana, May 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: 626313.