Hazardous Weather Outlook
Issued by NWS Detroit/Pontiac, MI

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FLUS43 KDTX 210739
HWODTX

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
339 AM EDT THU JUL 21 2016

MIZ047>049-053>055-060>063-068>070-075-076-082-083-220900-
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER-
ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
339 AM EDT THU JUL 21 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

A HEAT ADVISORY IS IN EFFECT. SEE THE LATEST NON-PRECIPITATION
STATEMENT FOR DETAIL.

THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ACROSS ALL OF
SOUTHEAST LOWER MICHIGAN TONIGHT. THUNDERSTORMS ARE EXPECTED TO
DEVELOP ACROSS THE UPPER PENINSULA AND NORTHERN LOWER MICHIGAN
LATE THIS AFTERNOON AND THEN MOVE SOUTH OR SOUTHEAST AROUND 35
MPH INTO SOUTHEAST LOWER MICHIGAN OVERNIGHT. THE THUNDERSTORMS
TONIGHT WILL HAVE THE POTENTIAL TO PRODUCE WIND GUSTS UP TO 65 MPH
AND ISOLATED SEVERE HAIL UP TO AN INCH IN DIAMETER.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THE HEAT ADVISORY WILL CONTINUE FOR FRIDAY. THE HEAT WILL
CONTINUE INTO THE WEEKEND AND MAY NECESSITATE AN EXTENSION OF THE
HEAT ADVISORY FOR SATURDAY OR SUNDAY.

THE CHANCE OF THUNDERSTORMS WILL LINGER INTO FRIDAY MORNING BEFORE
DRIER AND MORE STABLE AIR MOVES INTO THE REGION. A CHANCE OF
THUNDERSTORMS RETURNS FOR LATE SATURDAY NIGHT...SUNDAY AND SUNDAY
NIGHT. THERE WILL AGAIN BE A SLIGHT CHANCE THAT THE SUNDAY
AFTERNOON AND EVENING STORMS WILL BECOME SEVERE.

.SPOTTER INFORMATION STATEMENT...

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

$$

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-220900-
LAKE ST. CLAIR-
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI-
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-
339 AM EDT THU JUL 21 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE
HURON AND LAKE ST CLAIR.

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ACROSS LAKES
HURON...ST. CLAIR AND ERIE FROM LATE THIS AFTERNOON AND TONIGHT.
THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS THE UPPER PENINSULA
AND NORTHERN LOWER MICHIGAN LATE THIS AFTERNOON AND THEN MOVE
SOUTH OR SOUTHEAST AROUND 30 KNOTS INTO SOUTHEAST LOWER MICHIGAN
OVERNIGHT. THE THUNDERSTORMS TONIGHT WILL HAVE THE POTENTIAL TO
PRODUCE WIND GUSTS IN EXCESS OF 50 KNOTS AND ISOLATED SEVERE HAIL
UP TO AN INCH IN DIAMETER.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THE CHANCE OF THUNDERSTORMS WILL LINGER INTO FRIDAY MORNING BEFORE
DRIER AND MORE STABLE AIR MOVES INTO THE REGION. A CHANCE OF
THUNDERSTORMS RETURNS FOR LATE SATURDAY NIGHT...SUNDAY AND SUNDAY
NIGHT. THERE WILL AGAIN BE A SLIGHT CHANCE THAT THE SUNDAY
AFTERNOON AND EVENING STORMS WILL BECOME SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TONIGHT.

$$

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

RBP


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