National Weather Service United States Department of Commerce

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

September 7, 2012 Severe Weather and Heavy Rain

 

Surface Map Valid at 8:00 PM EDT September 7
Surface Map Valid 8:00 PM EDT September 7, 2012

 

An area of low pressure and a cold front moved through central Indiana bringing severe thunderstorms and heavy rain. Large hail, wind gusts over 60 mph, rainfall amounts over 3 inches, and flooding were seen across parts of central Indiana.

The map below shows 24 hour rainfall amounts ending 8:00 AM EDT September 8 (click to enlarge):

24 hour rainfall map

Below is a summary of reports received from this event by the National Weather Service:

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
844 AM EDT SAT SEP 08 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1204 PM     HAIL             N KOKOMO                40.48N  86.13W
09/07/2012  E0.75 INCH       HOWARD             IN   BROADCAST MEDIA

            SHEETS OF RAIN OBSERVED AS WELL. EVENT TIME ESTIMATED
            FROM RADAR.

1212 PM     TSTM WND DMG     GREENTOWN               40.48N  85.96W
09/07/2012                   HOWARD             IN   LAW ENFORCEMENT

            TREES AND POWER LINES DOWNED.

1239 PM     HAIL             TIPTON                  40.28N  86.04W
09/07/2012  E0.15 INCH       TIPTON             IN   TRAINED SPOTTER

1241 PM     HAIL             TIPTON                  40.28N  86.04W
09/07/2012  E0.25 INCH       TIPTON             IN   PUBLIC

1241 PM     FLOOD            TIPTON                  40.28N  86.04W
09/07/2012                   TIPTON             IN   EMERGENCY MNGR

            STREET FLOODING OCCURRING IN DOWNTOWN TIPTON.

1255 PM     TSTM WND DMG     SUMMITVILLE             40.34N  85.64W
09/07/2012                   MADISON            IN   LAW ENFORCEMENT

            POWER OUT IN SUMMITVILLE.

0122 PM     TSTM WND GST     SW ANDERSON             40.09N  85.69W
09/07/2012  E40 MPH          MADISON            IN   TRAINED SPOTTER

            PEA SIZED HAIL WAS ALSO OBSERVED...ALONG WITH HEAVY
            RAIN.

0130 PM     HAIL             3 S ANDERSON            40.05N  85.69W
09/07/2012  E0.50 INCH       MADISON            IN   EMERGENCY MNGR

            NEAR THE INTERSECTION OF CR 500S AND 50W...OBSERVED 1-2
            MINUTES OF HALF INCH HAIL.

0135 PM     HAIL             ANDERSON                40.09N  85.69W
09/07/2012  M1.00 INCH       MADISON            IN   EMERGENCY MNGR

            SOUTHWEST SIDE OF ANDERSON

0135 PM     HAIL             2 E ANDERSON            40.09N  85.65W
09/07/2012  E0.70 INCH       MADISON            IN   TRAINED SPOTTER

0145 PM     HEAVY RAIN       2 E ANDERSON            40.09N  85.65W
09/07/2012  M1.28 INCH       MADISON            IN   TRAINED SPOTTER

            OBSERVED IN 45 MINUTES.

0439 PM     HAIL             4 E FARMLAND            40.19N  85.05W
09/07/2012  E0.25 INCH       RANDOLPH           IN   FIRE DEPT/RESCUE

0441 PM     HAIL             WINCHESTER              40.17N  84.98W
09/07/2012  E0.75 INCH       RANDOLPH           IN   FIRE DEPT/RESCUE

            MARBLE SIZE HAIL

0749 PM     TSTM WND GST     4 NW LEBANON            40.09N  86.53W
09/07/2012  M62 MPH          BOONE              IN   STORM CHASER

0813 PM     TSTM WND GST     TERRE HAUTE             39.47N  87.38W
09/07/2012  M46 MPH          VIGO               IN   ASOS

0814 PM     TSTM WND GST     8 SW TERRE HAUTE        39.39N  87.49W
09/07/2012  M55 MPH          VIGO               IN   AMATEUR RADIO

0820 PM     TSTM WND DMG     2 E DANVILLE            39.76N  86.48W
09/07/2012                   HENDRICKS          IN   AMATEUR RADIO

            BARN ROOD BLOWN OFF AT 7458 W US36

0825 PM     HAIL             4 N DANVILLE            39.82N  86.52W
09/07/2012  E0.25 INCH       HENDRICKS          IN   EMERGENCY MNGR

            LOCATED AT 7100 N SR 39...HEAVY RAIN

0835 PM     HEAVY RAIN       TERRE HAUTE             39.47N  87.38W
09/07/2012  M1.12 INCH       VIGO               IN   AMATEUR RADIO

            TOTAL WITHIN THE PAST HOUR

0836 PM     FLOOD            THORNTOWN               40.13N  86.61W
09/07/2012                   BOONE              IN   AMATEUR RADIO

            REPORTS OF FLOODING IN DOWNTOWN ON STATE ROAD 47

0839 PM     HAIL             2 W BROWNSBURG          39.84N  86.43W
09/07/2012  E0.25 INCH       HENDRICKS          IN   AMATEUR RADIO

0843 PM     FLOOD            3 S TERRE HAUTE         39.43N  87.38W
09/07/2012                   VIGO               IN   AMATEUR RADIO

            MINIMUM OF 6 INCHES OF WATER ACROSS HIGHWAY 63 NEAR
            COUNTY ROAD 1100S SOUTH OF TERRE HAUTE. LOCATION APPROX.

0846 PM     FLOOD            6 W SHELBURN            39.18N  87.51W
09/07/2012                   SULLIVAN           IN   AMATEUR RADIO

            ONE FOOT OF WATER ON HIGHWAY 63 ONE MILE SOUTH OF SR48

0846 PM     HEAVY RAIN       2 N BROWNSBURG          39.87N  86.39W
09/07/2012  M1.26 INCH       HENDRICKS          IN   AMATEUR RADIO

            STORM TOTAL SO FAR

0847 PM     FLOOD            THORNTOWN               40.13N  86.61W
09/07/2012                   BOONE              IN   AMATEUR RADIO

            SIX TO TEN INCHES OF WATER ACROSS SR47

0847 PM     HEAVY RAIN       4 NNE SHERIDAN          40.19N  86.19W
09/07/2012  M2.15 INCH       HAMILTON           IN   AMATEUR RADIO

            TOTAL SINCE 730 PM EDT

0912 PM     HEAVY RAIN       2 SW SPEEDWAY           39.77N  86.27W
09/07/2012  M1.67 INCH       MARION             IN   AMATEUR RADIO

            TOTAL PAST 30 MINUTES AT 10TH STREET AND COUNTRY CLUB
            ROAD

0919 PM     HEAVY RAIN       1 N INDIANAPOLIS        39.79N  86.15W
09/07/2012  M1.00 INCH       MARION             IN   BROADCAST MEDIA

            TOTAL PAST 19 MINUTES

0925 PM     HEAVY RAIN       INDIANAPOLIS            39.78N  86.15W
09/07/2012  M1.75 INCH       MARION             IN   ASOS

            STORM TOTAL

0925 PM     HEAVY RAIN       2 SW SPEEDWAY           39.77N  86.27W
09/07/2012  M2.07 INCH       MARION             IN   TRAINED SPOTTER

            TOTAL IN 45 MINUTES AT 10TH STREET AND COUNTRY CLUB
            ROAD

0926 PM     HEAVY RAIN       1 E CARMEL              39.97N  86.09W
09/07/2012  M1.70 INCH       HAMILTON           IN   AMATEUR RADIO

            LOCATED AT MAIN STREET AND RIVER ROAD IN EAST CARMEL.
            DIRECTION DISTANCE ESTIMATED.

0930 PM     HEAVY RAIN       1 N INDIANAPOLIS        39.79N  86.15W
09/07/2012  M1.23 INCH       MARION             IN   BROADCAST MEDIA

            30-MINUTE TOTAL AT RTV6

0941 PM     TSTM WND GST     SHELBYVILLE             39.52N  85.78W
09/07/2012  M58 MPH          SHELBY             IN   AWOS

1000 PM     HEAVY RAIN       3 N FISHERS             40.00N  86.02W
09/07/2012  M2.15 INCH       HAMILTON           IN   NWS EMPLOYEE

1115 PM     TSTM WND GST     HAYDEN                  38.98N  85.74W
09/07/2012  M67 MPH          JENNINGS           IN   AMATEUR RADIO

            LIMBS AND SMALL TREES DOWNED.

0500 AM     HEAVY RAIN       3 NE MCCORDSVILLE       39.93N  85.90W
09/08/2012  M3.45 INCH       HAMILTON           IN   COCORAHS

            24-HR REPORT.

0600 AM     HEAVY RAIN       3 NW ZIONSVILLE         39.98N  86.31W
09/08/2012  M3.09 INCH       BOONE              IN   COCORAHS

            24-HR REPORT.

0630 AM     HEAVY RAIN       5 NNW RUSHVILLE         39.68N  85.48W
09/08/2012  M3.03 INCH       RUSH               IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       2 NNW AVON              39.78N  86.40W
09/08/2012  M3.46 INCH       HENDRICKS          IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       6 ESE LEBANON           40.02N  86.37W
09/08/2012  M3.28 INCH       BOONE              IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       3 ESE ANDERSON          40.08N  85.64W
09/08/2012  M3.23 INCH       MADISON            IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       3 SW THORNTOWN          40.09N  86.66W
09/08/2012  M3.16 INCH       BOONE              IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       6 N ANDERSON            40.18N  85.69W
09/08/2012  M3.14 INCH       MADISON            IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       9 NW INDIANAPOLIS       39.87N  86.27W
09/08/2012  M3.12 INCH       MARION             IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       6 SSW SPEEDWAY          39.71N  86.29W
09/08/2012  M3.10 INCH       MARION             IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       1 SSW FAIRLAND          39.60N  85.86W
09/08/2012  M3.10 INCH       SHELBY             IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       2 ESE EATON             40.33N  85.32W
09/08/2012  M4.32 INCH       DELAWARE           IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       2 WSW WINCHESTER        40.16N  85.02W
09/08/2012  M3.96 INCH       RANDOLPH           IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       5 ENE FRANKFORT         40.31N  86.42W
09/08/2012  M3.85 INCH       CLINTON            IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       5 S BROWNSBURG          39.77N  86.39W
09/08/2012  M3.64 INCH       HENDRICKS          IN   COCORAHS

            24-HR REPORT.

0700 AM     HEAVY RAIN       2 W MIDDLETOWN          40.06N  85.58W
09/08/2012  M3.79 INCH       MADISON            IN   CO-OP OBSERVER

            24-HR REPORT.

0730 AM     HEAVY RAIN       7 W INDIANAPOLIS        39.78N  86.27W
09/08/2012  M3.36 INCH       MARION             IN   COCORAHS

            24-HR REPORT.

0800 AM     HEAVY RAIN       3 E FISHERS             39.95N  85.97W
09/08/2012  M3.25 INCH       HAMILTON           IN   COCORAHS

            24-HR REPORT.