One Confirmed Tornado from July 23rd Severe Weather Event

Severe thunderstorms erupted along the I-94 corridor during the late afternoon on Friday, July 23rd.  These storms continued into the evening hours as they sagged south into Indiana and Ohio.  A National Weather Service survey confirmed one EF0 tornado in Augusta Township in Southeast Washtenaw County.  A National Weather Service storm survey was also conducted from Saline to Milan, in Washtenaw County. The result of this survey concluded that the damage in this region was due entirely to strait line winds. Based on the damage, wind gusts were estimated between 70 and 75 MPH. This caused extensive tree damage, especially in Saline.  There were many reports of high winds and associated wind damage across the rest of  Washtenaw County and across portions of Wayne and Northern Lenawee Counties.  Some of the highest wind gusts were estimated or measured to 80 mph south of Dexter, Augusta Township and in Taylor.  1 to 3 inches of rain also fell near the I-94 corridor which also brought a few localized flash flood events.  

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

0633 PM     TORNADO          2 SW WILLIS             42.14N 83.60W
07/23/2010                   WASHTENAW          MI   NWS EMPLOYEE

            NWS SURVEY DETERMINED AN EF0 TORNADO OCCURRED ALONG JUDD
            ROAD BETWEEN HITCHINGHAM AND WHITAKER ROADS AND EXTENDED
            SOUTHEAST TO NEAR WHITAKER ROAD. ESTIMATED WINDS WERE
            AROUND 80 MPH. PATH LENGTH WAS APPROXIMATELY 0.6 MILES
            AND PATH WIDTH WAS 100 YARDS.

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

0645 PM     TSTM WND DMG     3 SSE TAYLOR            42.19N 83.25W
07/23/2010                   WAYNE              MI   NWS EMPLOYEE

            NWS SURVEY DETERMINED SIGNIFICANT DAMAGE TO LARGE TREES
            FROM STRAIGHT LINE WINDS OCCURRED JUST SOUTH OF EUREKA
            ROAD BETWEEN PARDEE ROAD AND RACHO ROAD. ESTIMATED WINDS
            UP TO 80 MPH.

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
910 PM EDT FRI JUL 23 2010

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

0603 PM     TSTM WND DMG     CHELSEA                 42.31N 84.02W
07/23/2010                   WASHTENAW          MI   TRAINED SPOTTER

            SEVERAL TREES DOWN ALONG MAIN STREET IN DOWNTOWN CHELSEA

0612 PM     TSTM WND GST     1 SE CHELSEA            42.30N 84.01W
07/23/2010  E60.00 MPH       WASHTENAW          MI   TRAINED SPOTTER

0620 PM     TSTM WND GST     5 N MILAN               42.16N 83.70W
07/23/2010  M60.00 MPH       WASHTENAW          MI   TRAINED SPOTTER

0622 PM     TSTM WND DMG     SALINE                  42.18N 83.78W
07/23/2010                   WASHTENAW          MI   TRAINED SPOTTER

            SEVERAL TREES AND POWERLINES DOWN IN THE CITY OF SALINE.
            TIME ESTIMATED BY RADAR

0628 PM     TSTM WND GST     4 SW CANTON             42.26N 83.54W
07/23/2010  E70.00 MPH       WAYNE              MI   TRAINED SPOTTER

0630 PM     TSTM WND GST     6 NE MILAN              42.14N 83.60W
07/23/2010  M82.00 MPH       WASHTENAW          MI   AMATEUR RADIO

            TOTAL OF 2.8 INCHES OF RAIN WAS ALSO REPORTED

0635 PM     TSTM WND GST     YPSILANTI               42.24N 83.62W
07/23/2010  M58.00 MPH       WASHTENAW          MI   ASOS

            UPDATED TO 62 MPH WIND GUST MEASURED AT WILLOW RUN
            AIRPORT

0637 PM     TSTM WND DMG     2 NNW SALINE            42.20N 83.80W
07/23/2010                   WASHTENAW          MI   TRAINED SPOTTER

            SEVERAL 1-FOOT DIAMETER BRANCHES DOWN ON POWER LINES.

0638 PM     TSTM WND DMG     1 S TECUMSEH            41.99N 83.94W
07/23/2010                   LENAWEE            MI   LAW ENFORCEMENT

            TREES AND POWERLINES DOWNED

0642 PM     TSTM WND DMG     4 SSE WILLIS            42.10N 83.53W
07/23/2010                   WAYNE              MI   TRAINED SPOTTER

            LARGE TREE LIMBS AND POWER LINES DOWNED.

0647 PM     TSTM WND DMG     TAYLOR                  42.23N 83.27W
07/23/2010                   WAYNE              MI   TRAINED SPOTTER

            MULTIPLE 2 FOOT DIAMETER TREES DOWN.

0647 PM     TSTM WND GST     5 E ROMULUS             42.22N 83.27W
07/23/2010  E60.00 MPH       WAYNE              MI   TRAINED SPOTTER

0648 PM     TSTM WND GST     ROMULUS                 42.22N 83.37W
07/23/2010  E70.00 MPH       WAYNE              MI   TRAINED SPOTTER

            ESTIMATED WIND GUST AT INKSTER AND EUREKA ROADS

0650 PM     TSTM WND DMG     3 SE ROMULUS            42.19N 83.32W
07/23/2010                   WAYNE              MI   TRAINED SPOTTER

            MULTIPLE 6 INCH TREES DOWN...ALL IN SAME DIRECTION.

0653 PM     TSTM WND DMG     5 ESE TAYLOR            42.20N 83.18W
07/23/2010                   WAYNE              MI   TRAINED SPOTTER

            LARGE TREES DOWN

0653 PM     FUNNEL CLOUD     CARLETON                42.06N 83.39W
07/23/2010                   MONROE             MI   TRAINED SPOTTER

            FUNNEL CLOUD AT CARLETON RD AND I-275

0657 PM     TSTM WND DMG     3 SSE TAYLOR            42.18N 83.25W
07/23/2010                   WAYNE              MI   TRAINED SPOTTER

            TREES AND POWERLINES DOWN BETWEEN TELEGRAPH AND RACHO
            ROADS

0703 PM     TSTM WND DMG     TAYLOR                  42.23N 83.27W
07/23/2010                   WAYNE              MI   TRAINED SPOTTER

            1-75/PENNSYLVANIA RD, 3-6 INCH DIAMETER TREE BRANCHES
            OVER ROAD

0734 PM     FLOOD            SOUTHGATE               42.20N 83.21W
07/23/2010                   WAYNE              MI   TRAINED SPOTTER

            2.75 INCHES OF RAIN IN 2 HOURS. SIX TO EIGHT INCHES OF
            WATER REPORTED ON SOME SIDE STREETS, MAKING THEM
            IMPASSABLE.

0750 PM     TSTM WND DMG     4 NE ONSTED             42.04N 84.14W
07/23/2010                   LENAWEE            MI   LAW ENFORCEMENT

            TREES AND POWERLINES DOWNED


&&

PUBLIC INFORMATION STATEMENT...STORM TOTALS
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1129 AM EDT SAT JUL 24 2010


STORM TOTAL HEAVY RAIN REPORTS

LOCATION                   PRECIP      DURATION
                                       (INCHES)      (HOURS)        LAT       LON

...LENAWEE COUNTY...
   3 ESE HUDSON      M  1.13           24     41.85N    84.29W
   1 ESE TECUMSEH M  1.37           24     42.00N    83.93W
   TIPTON                      M  2.09           24     42.02N    84.06W
   ONSTED                   M  2.45           24     42.01N    84.19W

...MACOMB COUNTY...
   EASTPOINTE           M  1.20           24     42.47N    82.96W

...WASHTENAW COUNTY...
   1 S SALINE              M  1.28           24     42.16N    83.78W
   5 W PLYMOUTH      M  1.33           24     42.37N    83.57W
   1 W ANN ARBOR    M  1.50           24     42.28N    83.75W
   YPSILANTI                M  1.61           24     42.24N    83.62W
   1 NNE CHELSEA    M  1.75           24     42.33N    84.01W
   3 SE ANN ARBOR   M  1.82           24     42.24N    83.69W
   2 WSW YPSILANTI  M  1.87           24     42.23N    83.66W
   2 NE ANN ARBOR   M  2.15           24     42.29N    83.71W

...WAYNE COUNTY...
   2 SSE LIVONIA        M  1.01           24     42.37N    83.36W
   3 NE DEARBORN   M  1.10           24     42.35N    83.17W
   ALLEN PARK           M  1.30           20     42.26N    83.21W
   3 SE BELLEVILLE   M  1.34           24     42.17N    83.44W
   GRSSE PTE FRM    M  1.45           24     42.40N    82.89W
   ROMULUS                M  1.61           24     42.22N    83.37W
   1 WNW WDHVN      M  2.25           24     42.14N    83.25W
   WYANDOTTE           M  2.28           24     42.21N    83.16W


M = MEASURED
E = ESTIMATED

$$



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