weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

2 products issued by NWS for: 4NM NNE Port Hope MI
Share |


Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
400 AM EDT Mon Oct 23 2017

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-240900-
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-
400 AM EDT Mon Oct 23 2017

This hazardous weather outlook is for portions of Lake Erie, Lake
Huron and Lake St Clair.

.DAY ONE...Today and Tonight

Gale warning for all of Lake Huron this evening and tonight, with
small craft advisories for Lake St. Clair and Michigan waters of
Lake Erie. Refer to latest marine forecast for details.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Gale warnings continue for Lake Hurn Tuesday into Tuesday night, with
Gale watch for Lake St. Clair and Michigan waters of Lake Erie.
Refer to latest marine forecast for details.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

$$

You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.

SF



Gale Warning

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
349 AM EDT MON OCT 23 2017

...GALES DEVELOPING OVER LAKE HURON THIS EVENING...

.MODEL TRENDS HAVE COME INTO BETTER AGREEMENT ON THE TRACK AND
STRENGTHENING OF LOW PRESSURE FORECAST TO LIFT INTO LOWER MICHIGAN
LATER TODAY. THE SURFACE LOW IS NOW EXPECTED TO RAPIDLY DEEPENING AS
IT LIFTS ACROSS LOWER MI TONIGHT AND INTO THE STRAITS REGION BY
EARLY TUESDAY MORNING. THE RESULT WILL BE AN INCREASE IN THE WINDS
ON LAKE HURON TO GALE FORCE TONIGHT. THE SURFACE LOW IS FORECAST TO
WEAKEN OVER THE REGION ON TUESDAY. HOWEVER, AN INFLUX OF COLD AIR
WRAPPING AROUND THE LOW WILL INCREASE THE INSTABILITY OVER THE LAKES
AND SUPPORT CONTINUED GALE FORCE WINDS THROUGH THE DAY TUESDAY.
PROBABILITIES OF WIND GUSTS TO 35 KNOT GALES ON LAKE HURON ARE NOW
HIGH, WHILE PROBABILITIES OF HIGH END GALES TO 45 KNOTS OVER THE OPEN
WATERS OF LAKE HURON HAVE INCREASED TO ROUGHLY 30 PERCENT. WINDS AND
WAVES WILL UNDERGO A GRADUAL WEAKENING TUESDAY NIGHT INTO WEDNESDAY
WITH FURTHER WEAKENING OF THE LOW PRESSURE SYSTEM.

LHZ441>443-232015-
/O.NEW.KDTX.GL.W.0029.171024T0000Z-171025T0000Z/
PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI-
PORT SANILAC TO PORT HURON MI-
349 AM EDT MON OCT 23 2017

...GALE WARNING IN EFFECT FROM 8 PM THIS EVENING TO 8 PM EDT
TUESDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A GALE
WARNING WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 8 PM EDT
TUESDAY.

* WIND AND WAVES: DURING THE GALE WARNING...EXPECT SUSTAINED
  WINDS UP TO 31 KNOTS FROM THE SOUTH WITH GUSTS UP TO 39
  KNOTS. THE LARGEST EXPECTED SIGNIFICANT WAVES WILL BE 9 FEET
  WITH A POTENTIAL MAXIMUM WAVE HEIGHT OF 13 FEET.

* TIMING: THE MAXIMUM WINDS ARE EXPECTED AROUND 2 AM EDT TUESDAY
  WITH THE LARGEST WAVES EXPECTED AROUND 3 AM EDT TUESDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$



U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE