A slow moving upper level low pressure system rotated across Southeast Michigan, bringing a prolonged period
of steady rainfall to much of the area, beginning Thursday the 9th and lasting through early Saturday morning the
11th. For much of the area, this rain provided relief from the moderate to severe drought which had gripped Southern
Michigan since June. However, some locations received too much rain and experienced flooding. Over these two days
most of southeast Michigan received between one and three inches of rain. However, the Saginaw Valley received
between 3 and 8 inches and a few local spots along the M 59 corridor received 3 to 6 inches. Tri Cities airport (MBS)
had a two day rainfall total of just over 8 inches! Of this, 6.93 inches fell during Friday the 10th. This shattered the
previous 1 day record of 5.51 inches which occurred on September 10th, 1986 during one of the most extreme rain
events in recent history. Prior to this rainfall, Saginaw was on target to have one of its driest summers on record.
After this rainfall event, the rainfall total for the summer of 2012 (Jun-Aug) stands at 14.81 inches which now ranks
as the 4th wettest summer on record. Below is a list of storm total rainfall reports along with an image of the total
rainfall from August 9th through the morning of August 11th based off radar estimates.
Storm Total Rainfall Reports from August 9th through 11th
000
NOUS43 KDTX 101554
PNSDTX
MIZ047>049-053>055-060>063-068>070-075-076-082-083-DDHHMM-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1151 AM EDT FRI APR 10 2015
THE FOLLOWING ARE SOME PEAK WIND GUSTS REPORTED TO THE NATIONAL WEATHER SERVICE TODAY...
AS OF 1151 AM...
YPSILANTI 52 MPH 611 AM...
SAGINAW 51 MPH 446 AM...
PONTIAC 49 MPH 1010 AM...
PORT HOPE 47 MPH 936 AM...
ANN ARBOR 47 MPH 452 AM...
DETROIT METRO AIRPORT 46 MPH 638 AM...
FLINT 45 MPH 926 AM...
DETROIT CITY AIRPORT 45 MPH 539 AM...
ADRIAN 43 MPH 428 AM...
$$
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