Hazardous Weather Outlook
Issued by NWS Detroit/Pontiac, MI

000
FLUS43 KDTX 122031
HWODTX

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
431 PM EDT WED JUN 12 2013

MIZ047>049-053>055-060>063-132045-
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER-
ST. CLAIR-
431 PM EDT WED JUN 12 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR LOCATIONS ALONG AND NORTH OF
THE INTERSTATE 69 CORRIDOR.

.DAY ONE...TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED AFTER 8 PM TONIGHT. ALTHOUGH
WIDESPREAD SEVERE WEATHER IS NOT EXPECTED...SOME ISOLATED STRONG
TO SEVERE STORMS ARE POSSIBLE. THE STRONGEST STORMS WILL BE
CAPABLE OF PRODUCING WIND GUSTS TO 60 MPH AND HAIL TO ONE INCH IN
DIAMETER AS THEY MOVE TO THE EAST AT 25 MPH. THE THUNDERSTORMS
WILL ALSO PRODUCE INTENSE RAINFALL. LOCATIONS ALONG THE INTERSTATE
69 CORRIDOR MAY EXPERIENCE SOME LOCALIZED FLOODING. THESE STORMS
WILL BE ASSOCIATED WITH A WARM FRONT FORECAST TO LIFT TOWARD
SOUTHERN MICHIGAN...BRINGING AN INCREASINGLY UNSTABLE AIRMASS INTO
THE AREA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE NEXT CHANCE FOR THUNDERSTORMS WILL HOLD OFF UNTIL LATE THIS
WEEKEND INTO MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT.

$$

LCZ423-460-LEZ444-MIZ068>070-075-076-082-083-132045-
DETROIT RIVER-LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
431 PM EDT WED JUN 12 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR LOCATIONS ALONG AND SOUTH OF
A HOWELL TO MOUNT CLEMENS LINE.

.DAY ONE...TONIGHT

NUMEROUS TO WIDESPREAD THUNDERSTORMS ARE EXPECTED AFTER 8 PM THIS
EVENING. THERE IS CHANCE OF SEVERE WEATHER WITH THESE
STORMS. THE MOST PROBABLE TIME PERIOD FOR SEVERE WEATHER WILL BE
BETWEEN 8 PM AND 2 AM.

DUE TO THE DEGREE OF INSTABILITY AND ATMOSPHERIC WIND SHEAR
EXPECTED BY LATE TODAY...THE PRIMARY HAZARDS WITH THESE STORMS
WILL BE DAMAGING WIND GUSTS TO 70 MPH AND LARGE HAIL OF ONE INCH
IN DIAMETER. IN ADDITION...ISOLATED TORNADOES WILL BE POSSIBLE
ALONG A WARM FRONT FROM LATE AFTERNOON INTO EARLY EVENING...MOST
LIKELY ALONG OR SOUTH OF I 94. LINGERING THUNDERSTORMS MAY PRODUCE
VERY HEAVY RAIN AND FLOODING TONIGHT AS A LOW PRESSURE SYSTEM
TRACKS ALONG THE WARM FRONT JUST SOUTH OF THE STATE. FOR THIS
REASON...A FLASH FLOOD WATCH IS IN EFFECT FROM 8 PM THIS EVENING
THROUGH 8 AM THURSDAY MORNING. THUNDERSTORMS WILL MOVE EAST AT 30
MPH EARLY IN THE EVENING. THUNDERSTORM MOTION MAY INCREASE UP TO
50 MPH BY LATE EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE NEXT CHANCE FOR THUNDERSTORMS WILL HOLD OFF UNTIL LATE THIS
WEEKEND INTO MONDAY.

.SPOTTER INFORMATION STATEMENT...

DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGER IMMEDIATELY.
SPOTTER ACTIVATION MAY BE NEEDED TONIGHT.

$$

LCZ422-LHZ361>363-421-422-441>443-462>464-132045-
ST. CLAIR RIVER-
LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
BEYOND 5 NM OFF SHORE-
LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND 5NM
OFF SHORE-
LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF SHORE-
OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER SAGINAW
BAY-INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI-
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE-
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE-
LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE-
431 PM EDT WED JUN 12 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE HURON.

.DAY ONE...TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED AFTER 8 PM TONIGHT SOUTH OF
PORT AUSTIN. ALTHOUGH WIDESPREAD SEVERE WEATHER IS NOT
EXPECTED...SOME ISOLATED STRONG STORMS ARE POSSIBLE. THE STRONGEST
STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 40 KNOTS AND
HAIL TO ONE INCH IN DIAMETER AS THEY MOVE TO THE EAST AT 25 MPH.
THE THUNDERSTORMS WILL ALSO PRODUCE INTENSE RAINFALL. THESE
STORMS WILL BE ASSOCIATED WITH A WARM FRONT FORECAST TO LIFT
TOWARD SOUTHERN MICHIGAN...BRINGING AN INCREASINGLY UNSTABLE
AIRMASS INTO THE AREA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE NEXT CHANCE FOR THUNDERSTORMS WILL HOLD OFF UNTIL LATE THIS
WEEKEND INTO MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT.

$$

SC

YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE
AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE).