Recap of Heavy Rain and Severe Weather June 10th

Showers and thunderstorms developed rapidly during the overnight hours late Thursday night into early Friday morning producing very heavy rainfall in excess of 3 inches across portions of the area as a low level warm front lifted northward across the area.  The surface warm front began to lift northward during the day Friday.  The following is a surface analysis from approximately 330 PM EDT Friday afternoon indicating the approximate position of the surface warm front:

An outflow boundary from dissipating storms in north central and northeast Illinois combined with this frontal boundary to focus afternoon thunderstorm development.  The following is visible satellite imagery from approximately 230pm EDT highlighting this boundary.  Note the lack of clouds north of this boundary indicating more stable conditions:

Storm intensified as moderately unstable conditions developed with the afternoon heating.  The following are radar images of reflectivity from 500 pm EDT and 700 pm EDT indicating the expanding coverage of the storms as this boundary dropped southeastward.  Isolated large hail and wind damage accompanied the strongest storms.

In addition to hail and high winds, very high moisture content also led to very heavy rainfall and flooding in a few instances.  The map below shows radar estimated storm total precipitation from late Thursday night through Friday evening encompassing the two rounds of showers and thunderstorms.  Note the two bands of higher rainfall, with the yellow colors  indicative of radar estimated totals in excess of 3 inches.

The following is a summary of storm reports from Friday afternoon and evening:

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1048 PM EDT FRI JUN 10 2011
 
..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..
 
0235 PM     HAIL             SOMERSET                42.05N 84.38W
06/10/2011 E0.75 INCH       HILLSDALE          MI   EMERGENCY MNGR
 
0410 PM     HAIL             OLD TIP TOWN            41.22N 86.12W
06/10/2011 M1.00 INCH       MARSHALL           IN   PUBLIC
 
0426 PM     HAIL             MENTONE                 41.17N 86.03W
06/10/2011 M0.88 INCH       KOSCIUSKO          IN   EMERGENCY MNGR
 
0532 PM     HAIL             FORT WAYNE              41.08N 85.13W
06/10/2011 M0.25 INCH       ALLEN              IN   PUBLIC
 
            REPORTED AT THE INTERSECTION OF DUPONT AND BETHEL RD.
 
0535 PM     HAIL             FORT WAYNE              41.08N 85.13W
06/10/2011 M0.25 INCH       ALLEN              IN   PUBLIC
 
            REPORTED AT DUPONT AND COLDWATER RD.
 
0537 PM     HAIL             FORT WAYNE              41.08N 85.13W
06/10/2011 M0.25 INCH       ALLEN              IN   AMATEUR RADIO
 
            OCCURRED ABOUT A QUARTER MILE SOUTH OF DUPONT AND LIMA
            RD.
 
0551 PM     HAIL             NEW HAVEN               41.07N 85.01W
06/10/2011 M0.50 INCH       ALLEN              IN   TRAINED SPOTTER
 
0551 PM     HAIL             MELROSE                 41.09N 84.42W
06/10/2011 M0.25 INCH       PAULDING           OH   EMERGENCY MNGR
 
0554 PM     HAIL             ROANOKE                 40.96N 85.37W
06/10/2011 M0.50 INCH       HUNTINGTON         IN   TRAINED SPOTTER
 
            SLIGHTLY LARGER THAN HALF INCH HAIL REPORTED NEAR HWY
            114 AND COUNTY RD 200 E.
 
0600 PM     HAIL             FORT WAYNE              41.08N 85.13W
06/10/2011 M0.25 INCH       ALLEN              IN   AMATEUR RADIO
 
            REOPRTED NEAR INTERSECTION OF STILLHORN AND MAPLECREST.
 
0617 PM     HAIL             MARION                  40.56N 85.66W
06/10/2011 M0.70 INCH       GRANT              IN   PUBLIC
 
            REPORTED ON THE SOUTHEAST SIDE OF TOWN.
 
0639 PM     FLASH FLOOD      1 NNW ROANOKE           40.97N 85.38W
06/10/2011                   HUNTINGTON         IN   AMATEUR RADIO
 
            WATER ONE FOOT DEEP AT INTERSECTION OF SMITH AND CLARK
            ST.
 
0646 PM     TSTM WND DMG     FORT JENNINGS           40.91N 84.30W
06/10/2011                   PUTNAM             OH   LAW ENFORCEMENT
 
            TREES DAMAGE REPORTED NEAR FORT JENNINGS.
 
0705 PM     TSTM WND DMG     POINT ISABEL            40.42N 85.82W
06/10/2011                   GRANT              IN   EMERGENCY MNGR
 
            TREES AND POWER LINES DOWN NEAR 325 W AND SR 26.
 
0827 PM     FLASH FLOOD      ROANOKE                 40.96N 85.37W
06/10/2011                   HUNTINGTON         IN   LAW ENFORCEMENT
 
            WATER OVER COUNTY ROAD 900N NEAR ROANOKE.
 
 
&&

 



Return to News Archive

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.