The August 9-11th Rain Event

he August 9th-11th Rain Event

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...

$$