Overview
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Following the August 11, 2026 derecho, multiple rounds of storms tracked through the area during the day on August 12th. Because the ground was so saturated from recent rainfall, flash flooding began during the midday hours, especially south of US 30. Many roads were closed and/or impassable due to rising water and there were a few reports of water rescues. 10"+ of rain fell in some locations from August 11th through the 12th! Pulaski, Starke, Fulton, Miami, and Grant counties in our forecast area saw numerous flash floods occur on August 12th. |
Flooding
Minor to Moderate flood stage occurred on several area rivers in northeast/east central Indiana following the 6-10" of rain that fell on August 12th.
Additionally, since NWS WPC's Excessive Rainfall Outlook (ERO) product began on October 5, 2004, our area has been in a Moderate Risk (level 3 of 4) 13 times. August 12th and 13th of this year was the first time our forecast area has ever had two consecutive days of a Moderate ERO.
Hydrographs
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| The Mississinewa River at Marion, IN reached Moderate flood stage with a peak crest of 13.36 ft on August 13th. | The Salamonie River near Warren, IN peaked at a crest of 12.64 ft in Minor flood stage on August 13th. | The Wabash River at Linn Grove, IN was still rising through Minor flood stage as of the morning of August 14th. | Further south in NWS Indianapolis's area, historic flooding occurred on the White River in Anderson, IN. Major flood stage was observed with a record crest of 24.93 ft on August 14th! |
Rainfall Totals from CoCoRaHs
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| 5 Day rainfall totals from August 10th through the morning of August 14th |
Rainfall Reports
168 NOUS43 KIWX 121610 PNSIWX INZ005>009-012>015-017-018-020-022>027-032>034-103-104-116-203-204-216-MIZ078>081- 177-277-OHZ001-002-004-005-015-016-024-025-130410- Public Information Statement National Weather Service Northern Indiana 1210 PM EDT Wed Aug 12 2026 ...PRECIPITATION REPORTS OVER THE PAST 24 HOURS... Location Amount Time/Date Provider ...Indiana... ...Adams County... 0.8 N Linn Grove 1.34 in 1145 AM 08/12 HADS 1.8 E Berne 0.94 in 0800 AM 08/12 COOP ...Allen County... 2 ENE Nine Mile 2.40 in 0800 AM 08/12 Official NWS Obs FORT WAYNE 1.37 in 1158 AM 08/12 CWOP Monroeville 0.2 ESE 1.28 in 0700 AM 08/12 COCORAHS Fort Wayne 5.4 ENE 1.07 in 0700 AM 08/12 COCORAHS 2 E Wallen 1.00 in 0405 PM 08/11 Public FORT WAYNE 0.99 in 1200 PM 08/12 CWOP FORT WAYNE 0.94 in 1155 AM 08/12 CWOP Fort Wayne 10.1 WSW 0.93 in 0700 AM 08/12 COCORAHS Fort Wayne 4.1 NE 0.91 in 0700 AM 08/12 COCORAHS Ellisville 0.3 W 0.90 in 0730 AM 08/12 COCORAHS Huntertown 1.5 NE 0.86 in 0700 AM 08/12 COCORAHS Fort Wayne 9.3 W 0.85 in 0700 AM 08/12 COCORAHS Fort Wayne 7.1 WSW 0.79 in 0800 AM 08/12 COCORAHS Fort Wayne 2.6 NE 0.76 in 0700 AM 08/12 COCORAHS Woodburn 2.8 WSW 0.76 in 0700 AM 08/12 COCORAHS Fort Wayne 6.8 NE 0.75 in 0700 AM 08/12 COCORAHS Zanesville 1.1 NE 0.72 in 0700 AM 08/12 COCORAHS Fort Wayne 9.0 NNE 0.67 in 0805 AM 08/12 COCORAHS Fort Wayne 8.0 N 0.64 in 0700 AM 08/12 COCORAHS Fort Wayne International Ap 0.60 in 1154 AM 08/12 ASOS Fort Wayne 9.1 SE 0.60 in 0700 AM 08/12 COCORAHS Hoagland 1.5 SSW 0.52 in 0830 AM 08/12 COCORAHS ...Blackford County... Hartford City 4 ESE 3.30 in 0800 AM 08/12 COOP MONTPELIER 2.84 in 1156 AM 08/12 CWOP ...Cass County... Walton 2.09 in 1145 AM 08/12 CWOP Logansport 1.73 in 1200 PM 08/12 CWOP Galveston 1.68 in 1145 AM 08/12 CWOP ...De Kalb County... Auburn 0.2 SE 0.57 in 0800 PM 08/11 COCORAHS 0.6 S Garrett 0.55 in 0620 AM 08/12 COOP ...Elkhart County... Nappanee 3.7 NNW 1.06 in 0705 AM 08/12 COCORAHS Goshen 3 SW 0.77 in 0700 PM 08/11 COOP Syracuse 2.0 NW 0.72 in 0737 AM 08/12 COCORAHS Wakarusa 2.4 NNE 0.64 in 0700 AM 08/12 COCORAHS Syracuse 4.4 NNW 0.60 in 0700 AM 08/12 COCORAHS ...Fulton County... Kewanna 4.9 S 4.07 in 0700 AM 08/12 COCORAHS Rochester 2.4 NW 0.83 in 0700 AM 08/12 COCORAHS ...Grant County... (KB9CRA)Gas City 0.3 N 4.53 in 0700 AM 08/12 COCORAHS Marion 1.8 NW 3.08 in 0735 AM 08/12 COCORAHS 2.2 N Marion 2.97 in 0700 AM 08/12 COOP Marion 6.5 N 2.61 in 0700 AM 08/12 COCORAHS MARION 2.27 in 1157 AM 08/12 CWOP ...Huntington County... Andrews 0.6 N 2.60 in 0630 AM 08/12 COCORAHS 2.4 NW Warren 1.18 in 1145 AM 08/12 HADS Huntington 0.3 W 0.81 in 0700 AM 08/12 COCORAHS Huntington 8.6 N 0.68 in 0700 AM 08/12 COCORAHS 1.7 E Bowerstown 0.62 in 1100 AM 08/12 HADS Huntington 5.7 ENE 0.55 in 0700 AM 08/12 COCORAHS ...Jay County... (W9JKL) Portland 0.6 SSW 3.70 in 0700 AM 08/12 COCORAHS 1 N Portland 2.59 in 1155 AM 08/12 AWOS Bryant 4.8 W 1.72 in 0545 AM 08/12 COCORAHS ...Kosciusko County... 2 N North Webster 1.82 in 0800 AM 08/12 Official NWS Obs Leesburg 0.1 WNW 0.77 in 0600 AM 08/12 COCORAHS Leesburg 6.7 ESE 0.73 in 0700 AM 08/12 COCORAHS North Webster 0.6 ESE 0.69 in 0800 AM 08/12 COCORAHS 2 NW Tippecanoe Lake 0.66 in 0706 AM 08/12 NWS Employee Cromwell 2.9 W 0.66 in 0700 AM 08/12 COCORAHS Milford 2.7 SSW 0.64 in 0600 AM 08/12 COCORAHS North Webster 2.3 N 0.60 in 0800 AM 08/12 COCORAHS Warsaw 3.0 SE 0.59 in 0640 AM 08/12 COCORAHS Warsaw 2.7 SSE 0.55 in 0730 AM 08/12 COCORAHS Warsaw 3.0 SE 0.55 in 0700 AM 08/12 COCORAHS 1.8 S Monoquet 0.50 in 0711 AM 08/12 COOP ...La Porte County... Wanatah 4.4 ESE 2.28 in 0900 AM 08/12 COCORAHS Hanna 1.1 E 2.27 in 0800 AM 08/12 COCORAHS La Crosse 3.2 NW 1.77 in 0800 AM 08/12 COCORAHS La Crosse 1.2 W 1.68 in 0800 AM 08/12 COCORAHS La Porte 6.8 SW 1.45 in 0800 AM 08/12 COCORAHS Michigan City 5.4 S 1.36 in 0800 AM 08/12 COCORAHS La Porte 2.3 ESE 1.04 in 0930 AM 08/12 COCORAHS La Porte 0.96 in 1155 AM 08/12 AWOS La Porte 1.6 SW 0.77 in 0800 AM 08/12 COCORAHS Mill Creek 1.9 NNE 0.65 in 0800 AM 08/12 COCORAHS ...Lagrange County... LaGrange 1.3 ENE 1.02 in 0729 AM 08/12 COCORAHS Lagrange 9.6 ESE 0.62 in 0700 AM 08/12 COCORAHS Orland 6.6 SSW 0.55 in 0700 AM 08/12 COCORAHS Wolcottville 1.1 WNW 0.53 in 0900 AM 08/12 COCORAHS LaGrange 9.9 E 0.52 in 0800 AM 08/12 COCORAHS ...Marshall County... Plymouth 2.5 WSW 0.86 in 0640 AM 08/12 COCORAHS Argos 0.3 SSE 0.73 in 0800 AM 08/12 COCORAHS ...Miami County... AMBOY 2.89 in 1145 AM 08/12 CWOP Denver 0.5 SSE 1.91 in 0700 AM 08/12 COCORAHS Macy 2.7 SSE 1.63 in 0700 AM 08/12 COCORAHS Denver 1.3 NE 1.53 in 0700 AM 08/12 COCORAHS Amboy 1.47 in 1200 PM 08/12 CWOP Grissom AFB Peru 1.04 in 1148 AM 08/12 AWOS ...Noble County... Kendallville 4.5 NW 0.78 in 0700 AM 08/12 COCORAHS Ligonier 0.61 in 1154 AM 08/12 AWS ...Pulaski County... 3 NNE Pulaski 7.56 in 0959 PM 08/11 Public 3 SE Lawton 6.03 in 1004 PM 08/11 Public Winamac 9.1 SW 2.10 in 0900 AM 08/12 COCORAHS Monterey 2.2 WNW 1.38 in 0800 AM 08/12 COCORAHS Monterey 1.3 WNW 1.21 in 0800 AM 08/12 COCORAHS 1.3 SW Ora 1.12 in 1145 AM 08/12 COOP ...St. Joseph County... 3 E Chain-O-Lakes 2.29 in 0800 AM 08/12 Official NWS Obs South Bend 4.2 NNW 0.75 in 0600 PM 08/11 COCORAHS ...Starke County... 3.2 SE North Judson 4.23 in 0800 AM 08/12 COOP San Pierre 4.1 NNE 3.79 in 0800 AM 08/12 COCORAHS North Judson 2.5 N 3.45 in 0736 AM 08/12 COCORAHS Culver 3.1 WNW 1.71 in 0700 AM 08/12 COCORAHS Knox - Starke Co. Airport 0.83 in 1155 AM 08/12 AWOS ...Steuben County... Hudson 0.3 SE 0.85 in 1034 AM 08/12 COCORAHS Hudson 4.1 NNW 0.78 in 0600 AM 08/12 COCORAHS Hudson 6.4 WNW 0.59 in 0800 AM 08/12 COCORAHS Hudson 4.6 N 0.56 in 0700 AM 08/12 COCORAHS ...Wabash County... La Fontaine 1.1 NW 3.10 in 0800 AM 08/12 COCORAHS Lagro 3.5 ESE 2.50 in 0630 AM 08/12 COCORAHS Wabash 0.3 NNW 2.20 in 0600 AM 08/12 COCORAHS 3.0 SE Lagro 0.93 in 1115 AM 08/12 HADS 0.7 SE Wabash 0.79 in 1130 AM 08/12 HADS ...Wells County... Bluffton 1.15 in 1145 AM 08/12 HADS Bluffton 0.9 SE 0.83 in 0745 AM 08/12 COCORAHS Ossian 2.4 W 0.70 in 0800 AM 08/12 COCORAHS Craigville 2.7 NW 0.64 in 0800 AM 08/12 COCORAHS Bluffton 3.6 N 0.57 in 0700 AM 08/12 COCORAHS Roanoke 4.0 SSE 0.55 in 0700 AM 08/12 COCORAHS ...White County... Monticello 5.5 NNW 1.92 in 0800 AM 08/12 COCORAHS Monticello - White County Ar 0.91 in 1155 AM 08/12 AWOS 5.6 N Badger Grove 0.55 in 0530 AM 08/12 COOP ...Whitley County... Columbia City 4.6 S 1.03 in 0600 AM 08/12 COCORAHS Larwill 4.7 N 0.71 in 0948 AM 08/12 COCORAHS Columbia City 7.4 N 0.71 in 0654 AM 08/12 COCORAHS Tri-Lakes 3.0 N 0.70 in 0700 AM 08/12 COCORAHS Columbia City 5.4 N 0.68 in 0738 AM 08/12 COCORAHS Columbia City 0.6 NNE 0.66 in 0800 AM 08/12 COCORAHS South Whitley 2.3 NNE 0.56 in 0800 AM 08/12 COCORAHS Columbia City 5.4 N 0.50 in 0800 AM 08/12 COCORAHS ...Michigan... ...Berrien County... Niles 7.4 SW 0.60 in 0800 AM 08/12 COCORAHS ...Cass County... Niles 3.5 E 0.59 in 0900 AM 08/12 COCORAHS ...Ohio... ...Allen County... Lima 2.7 NE 1.25 in 0700 AM 08/12 COCORAHS Ada 3.0 W 1.17 in 0920 AM 08/12 COCORAHS Delphos 2.3 ESE 0.96 in 0600 AM 08/12 COCORAHS Lima 3.0 SSE 0.81 in 0600 AM 08/12 COCORAHS Lima 1 N 0.63 in 1155 AM 08/12 CWOP ...Defiance County... Defiance 9.4 NE 1.23 in 0630 AM 08/12 COCORAHS ...Fulton County... Delta 0.4 ENE 0.78 in 0700 AM 08/12 COCORAHS ...Henry County... Liberty Center 0.3 NE 0.54 in 0700 AM 08/12 COCORAHS Napoleon 1.2 SSE 0.51 in 0700 AM 08/12 COCORAHS ...Paulding County... Payne 5.2 S 0.97 in 1000 AM 08/12 COCORAHS ...Putnam County... Ottawa 1.0 N 0.86 in 0700 AM 08/12 COCORAHS Ottawa 1.2 ENE 0.84 in 0900 AM 08/12 COCORAHS Leipsic 5.4 W 0.56 in 0700 AM 08/12 COCORAHS ...Van Wert County... Van Wert 1.78 in 1155 AM 08/12 CWOP Van Wert 0.90 in 1200 PM 08/12 CWOP 1 WNW Convoy 0.77 in 1150 AM 08/12 AWS 2 N Wetsel 0.50 in 1150 AM 08/12 AWS ...Williams County... Pioneer 2.3 S 0.85 in 0700 AM 08/12 COCORAHS Alvordton 0.5 E 0.79 in 0700 AM 08/12 COCORAHS Observations are collected from a variety of sources with varying equipment and exposures. We thank all volunteer weather observers for their dedication. Not all data listed are considered official.
Storm Reports
162
NWUS53 KIWX 122202
LSRIWX
Preliminary Local Storm Report...Summary
National Weather Service Northern Indiana
602 PM EDT Wed Aug 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0934 AM Hail 1 NE Southworth 40.77N 84.33W
08/12/2026 E1.00 Inch Allen OH Public
Report from mPING: Quarter (1.00 in.).
0939 AM Hail Elida 40.79N 84.20W
08/12/2026 E1.00 Inch Allen OH Public
Photo on Facebook of quarter size hail in
Elida. Time estimated via radar.
0941 AM Hail 1 W Lima 40.74N 84.13W
08/12/2026 E1.50 Inch Allen OH Public
Ping pong ball size hail on the west side of
Lima. Time estimated via radar.
0945 AM Hail Lima 40.74N 84.11W
08/12/2026 M2.00 Inch Allen OH Public
Delayed report. Photo showing a 2 inch
hailstone that fell in Lima. Measured with a
ruler. Time estimated via radar.
0945 AM Hail Fort Shawnee 40.68N 84.13W
08/12/2026 E1.00 Inch Allen OH Public
Time estimated via radar. Photo on Facebook
showing hailstones next to a quarter. Fell
in Fort Shawnee, OH.
0946 AM Hail 1 SSE Lima 40.72N 84.10W
08/12/2026 E1.00 Inch Allen OH Public
Photo on the south side of Lima showing
quarter size hail. Time estimated via radar.
0952 AM Hail 1 E Lima 40.74N 84.08W
08/12/2026 E1.00 Inch Allen OH Public
Report from mPING: Quarter (1.00 in.).
1015 AM Flash Flood 2 E Hartford City 40.45N 85.33W
08/12/2026 Blackford IN Dept of Highways
Corrects previous flash flood report from 2
E Hartford City. INDOT reports IN 26 is
flooded and closed between IN 3 and S 500 E
near Hartford City.
1030 AM Flash Flood 2 NW Upland 40.48N 85.54W
08/12/2026 Grant IN Dept of Highways
INDOT reports IN 22 is flooded and the road
is closed between I-69 and SR 5.
1100 AM Flash Flood 1 NNE Upland 40.48N 85.50W
08/12/2026 Grant IN Public
SR5 and IN-22 is flooded with water at least
knee deep. There was one reported rescue at
the intersection at 11 AM.
1124 AM Flood 2 W Fowlerton 40.42N 85.61W
08/12/2026 Grant IN Public
Report from mPING: River/Creek overflowing;
Cropland/Yard/Basement Flooding.
1125 AM Flood 1 NW Fowlerton 40.42N 85.58W
08/12/2026 Grant IN Public
Report from mPING: River/Creek overflowing;
Cropland/Yard/Basement Flooding.
1206 PM Hail Winona Lake 41.22N 85.81W
08/12/2026 M0.75 Inch Kosciusko IN Public
1207 PM Hail 2 SSE Winona Lake 41.20N 85.80W
08/12/2026 M0.70 Inch Kosciusko IN Trained Spotter
Dime size hail on 250E near Warsaw.
1213 PM Flash Flood Royal Center 40.87N 86.50W
08/12/2026 Cass IN Emergency Mngr
Deputy Town Marshall reporting streets
flooding in front of Pioneer Elementary
Schooll.
1218 PM Flood 2 W Hanfield 40.60N 85.63W
08/12/2026 Grant IN Public
Report from mPING: River/Creek overflowing;
Cropland/Yard/Basement Flooding.
1222 PM Flash Flood 2 SSE Thornhope 40.90N 86.52W
08/12/2026 Cass IN Emergency Mngr
INDOT being requested for high water
(possible road closure) on US 35 near Royal
Center Pike.
1235 PM Rain Sweetser 40.58N 85.76W
08/12/2026 E9.00 Inch Grant IN Public
Rain gauge in Sweetser showing an estimated
9 inches of rain has fallen. This is a 36
hour total.
1240 PM Tstm Wnd Dmg 3 N Burr Oak 41.29N 86.42W
08/12/2026 Marshall IN Emergency Mngr
Tree down near SR 17 and SR 8 intersection.
Relayed by EMA. Time estimated via radar.
1244 PM Flash Flood 2 NE Amboy 40.62N 85.90W
08/12/2026 Miami IN Public
Report from mPING: Street/road flooding;
Street/road closed; Vehicles stranded.
1245 PM Flash Flood 1 NNW Grissom Afb 40.68N 86.16W
08/12/2026 Miami IN Public
Flooding ongoing in the Eagle Pointe
neighborhood. Unsure how deep the water is.
1246 PM Flood 3 N La Fontaine 40.71N 85.74W
08/12/2026 Wabash IN Public
Report from mPING: River/Creek overflowing;
Cropland/Yard/Basement Flooding.
1246 PM Flood 2 NE Amboy 40.62N 85.90W
08/12/2026 Miami IN Public
Report from mPING: River/Creek overflowing;
Cropland/Yard/Basement Flooding.
0104 PM Flash Flood 2 E Bunker Hill 40.66N 86.06W
08/12/2026 Miami IN Public
Video on Facebook of SR218 flooding. 2
people were safely rescued after their car
got stuck in floodwaters near the
intersection of SR218 and South Strawtown
Pike.
0115 PM Flash Flood 1 ENE Anoka 40.73N 86.26W
08/12/2026 Cass IN Emergency Mngr
EMA reporting water flowing over the road S
CR 600E and E 250 S.
0129 PM Flood 1 NE Peru 40.76N 86.06W
08/12/2026 Miami IN Public
Report from mPING: River/Creek overflowing;
Cropland/Yard/Basement Flooding.
0130 PM Tstm Wnd Dmg 1 SSE Winamac 41.04N 86.60W
08/12/2026 Pulaski IN Broadcast Media
Video showing US 35 flooded at the Caseys
gas station south of Winamac.
0142 PM Lightning 2 NNE Anoka 40.74N 86.27W
08/12/2026 Cass IN Emergency Mngr
Barn caught fire due to lightning strike
southeast of Logansport. Reported by EMA.
Time estimated via radar.
0210 PM Flash Flood Swayzee 40.51N 85.83W
08/12/2026 Grant IN Public
Flooding at East Harrison Street and North
Washington Street. Car stuck in floodwaters.
0220 PM Rain 1 E Winamac 41.05N 86.59W
08/12/2026 E11.00 Inch Pulaski IN Public
Public report of flooding near a home on the
east side of Winamac where they estimate
almost 11 inches of rain has fallen since
yesterday morning. This is 36 hour rainfall
total.
0230 PM Flash Flood 1 N Mier 40.59N 85.83W
08/12/2026 Grant IN Public
SR 13 is impassable due to flooding near Oak
Hill High School. Photo on Facebook.
0230 PM Flash Flood 1 E Sweetser 40.57N 85.75W
08/12/2026 Grant IN Public
Flooding at N 400 W and SR 18.
0251 PM Flash Flood 2 N Arcana 40.57N 85.50W
08/12/2026 Grant IN Public
Report from mPING: Street/road flooding;
Street/road closed; Vehicles stranded.
0415 PM Flash Flood 1 WSW Home Corner 40.51N 85.66W
08/12/2026 Grant IN Public
South Race Street is flooded due to heavy
rain. Photo on Facebook.
0415 PM Flash Flood Marion 40.56N 85.66W
08/12/2026 Grant IN Public
Photo showing flooding on West 7th Street in
Marion. Unsure how deep the water is but
cars cannot get through.
0520 PM Flash Flood 2 N Royal Center 40.89N 86.50W
08/12/2026 Cass IN Emergency Mngr
Relayed by emergency manager with photos,
widespread flooding on N 600 W near Royal
Center.
Photos & Video
Coming soon!
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Environment
Conditions were very favorable for heavy rain and flooding following several rounds of storms that came through the area from August 11th and 12th. A very humid airmass was centered over the Ohio River Valley and Great Lakes regions with precipitable water values in the 99th percentile (2") and strong moisture transport in the lower levels of the atmosphere. High values of moisture transport have been related to heavy rainfall potential with convective systems. Numerous flash floods were observed in northern and east-central Indiana on August 12th, including historic flooding in Muncie, IN and surrounding counties.
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| Figure 1: NWS WPC Mesoscale Discussion #1022 issued at 9:10 AM EDT August 12th | Figure 2: NWS WPC Mesoscale Discussion #1024 issued at 2:01 PM EDT August 12th | Figure 3: Precipitable Water values of 2" over Indiana at 12Z August 12th (99th percentile for climatology) |
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| Figure 4: Strong 850mb moisture transport over northern and east central Indiana at 18Z August 12th | Figure 5: Moderate to strong 925-850mb moisture transport over Indiana and Illinois around midday August 12th | Figure 6: A humid airmass was over the Ohio River Valley and Great Lakes on August 12th with dewpoints well into the 60s as of 18Z. |
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