weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Dense Fog Advisory


URGENT - WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
540 AM EST Wed Feb 22 2017

MIZ047>049-053>055-221500-
/O.CON.KDTX.FG.Y.0005.000000T0000Z-170222T1500Z/
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-
Including the cities of Midland, Bay City, Bad Axe, Saginaw,
Caro, and Sandusky
540 AM EST Wed Feb 22 2017

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING...

HAZARDOUS WEATHER...

 * Widespread dense fog will persist through the morning commute.

 * Visibilities will be a quarter mile or less.

IMPACTS...

 * Hazardous driving conditions within areas of poor or rapidly
   fluctuating visibilities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Dense Fog Advisory means visibilities will frequently be
reduced to less than one quarter mile. If driving, slow down, use
your headlights and leave plenty of distance ahead of you.

 * Prepare, plan and stay informed. Visit http://go.usa.gov/c7kkP

&&

$$

SC

URGENT - WEATHER MESSAGE
National Weather Service Gaylord MI
444 AM EST Wed Feb 22 2017


MIZ029-030-034>036-041-042-221500-
/O.CON.KAPX.FG.Y.0004.000000T0000Z-170222T1500Z/
Oscoda-Alcona-Roscommon-Ogemaw-Iosco-Gladwin-Arenac-
Including the cities of Mio, Harrisville, Houghton Lake,
West Branch, Tawas City, Gladwin, and Standish
444 AM EST Wed Feb 22 2017

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* VISIBILITY...reduced to a quarter mile or less from Houghton
  Lake east to Saginaw Bay.

* IMPACTS...expect slow travel conditions for the morning
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Dense Fog Advisory means visibilities will frequently be
reduced to less than one quarter mile. If driving...slow down...
use your headlights...and leave plenty of distance ahead of you.
Use extra care near school bus stops.

&&

$$

JZ

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
302 AM EST WED FEB 22 2017

...DENSE FOG OVER THE WATERS THROUGH TONIGHT...

.LIGHT TO MODEST SOUTHERLY WINDS ARE ADVECTING VERY MOIST AIR ATOP
THE COLD LAKE SURFACE, RESULTING IN DENSE MARINE FOG ACROSS LAKE
HURON. EXPECTATIONS ARE FOR STRENGTHENING SOUTHERLY FLOW DURING THE
COURSE OF THE DAY TO PUSH THE FOG TOWARD THE NORTHERN HALF OF THE
LAKE LATE TODAY INTO TONIGHT. LOW PRESSURE WILL SLIDE ACROSS THE
STRAITS REGION LATE TONIGHT BEFORE EXITING NORTHEAST OF LAKE HURON BY
DAYBREAK THURSDAY. THE RESULT WILL BE A VEERING OF THE WINDS TO THE
NORTHWEST, BRINGING DRIER AIR ACROSS THE LAKE AND THEREBY SCOURING
OUT LINGERING FOG.

DEEPENING LOW PRESSURE IS FORECAST TO MOVE FROM IOWA TO NORTHERN
MICHIGAN ON FRIDAY. EASTERLY WINDS WILL INCREASE ACROSS LAKE HURON
IN RESPONSE. THERE IS FAIRLY HIGH PROBABILITY THAT GUSTS ACROSS THE
NORTHERN AND CENTRAL PORTIONS OF THE LAKE WILL REACH 30 KNOTS, WITH
A CHANCE FOR SOME GALE FORCE WIND GUSTS. GUSTY WINDS WILL THEN ENSUE
FRIDAY NIGHT INTO SATURDAY AS THE SYSTEM LIFTS NORTHEAST OF THE
REGION, WITH AGAIN A CHANCE FOR SOME GALE FORCE GUSTS.

LHZ421-422-441>443-462>464-222100-
/O.NEW.KDTX.MF.Y.0004.170222T0802Z-170222T2100Z/
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-
302 AM EST WED FEB 22 2017

...DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
DENSE FOG ADVISORY...WHICH IS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON.

* EXPECT DENSE FOG WITH VISIBILITIES OF ONE QUARTER OF A MILE OR
  LESS UNTIL 4 PM EST THIS AFTERNOON.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE
REDUCED TO LESS THAN ONE MILE. INEXPERIENCED MARINERS, ESPECIALLY
THOSE OPERATING SMALLER VESSELS, SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

JVC

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
302 AM EST WED FEB 22 2017

...DENSE FOG OVER THE WATERS THROUGH TONIGHT...

.LIGHT TO MODEST SOUTHERLY WINDS ARE ADVECTING VERY MOIST AIR ATOP
THE COLD LAKE SURFACE, RESULTING IN DENSE MARINE FOG ACROSS LAKE
HURON. EXPECTATIONS ARE FOR STRENGTHENING SOUTHERLY FLOW DURING THE
COURSE OF THE DAY TO PUSH THE FOG TOWARD THE NORTHERN HALF OF THE
LAKE LATE TODAY INTO TONIGHT. LOW PRESSURE WILL SLIDE ACROSS THE
STRAITS REGION LATE TONIGHT BEFORE EXITING NORTHEAST OF LAKE HURON BY
DAYBREAK THURSDAY. THE RESULT WILL BE A VEERING OF THE WINDS TO THE
NORTHWEST, BRINGING DRIER AIR ACROSS THE LAKE AND THEREBY SCOURING
OUT LINGERING FOG.

DEEPENING LOW PRESSURE IS FORECAST TO MOVE FROM IOWA TO NORTHERN
MICHIGAN ON FRIDAY. EASTERLY WINDS WILL INCREASE ACROSS LAKE HURON
IN RESPONSE. THERE IS FAIRLY HIGH PROBABILITY THAT GUSTS ACROSS THE
NORTHERN AND CENTRAL PORTIONS OF THE LAKE WILL REACH 30 KNOTS, WITH
A CHANCE FOR SOME GALE FORCE WIND GUSTS. GUSTY WINDS WILL THEN ENSUE
FRIDAY NIGHT INTO SATURDAY AS THE SYSTEM LIFTS NORTHEAST OF THE
REGION, WITH AGAIN A CHANCE FOR SOME GALE FORCE GUSTS.

LHZ361>363-231200-
/O.NEW.KDTX.MF.Y.0004.170222T0802Z-170223T1200Z/
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-
302 AM EST WED FEB 22 2017

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
DENSE FOG ADVISORY...WHICH IS IN EFFECT UNTIL 7 AM EST THURSDAY.

* EXPECT DENSE FOG WITH VISIBILITIES OF ONE QUARTER OF A MILE OR
  LESS UNTIL 7 AM EST THURSDAY.

REFER TO THE LATEST MARINE FORECASTS FOR GREATER DETAIL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE
REDUCED TO LESS THAN ONE MILE. INEXPERIENCED MARINERS, ESPECIALLY
THOSE OPERATING SMALLER VESSELS, SHOULD AVOID NAVIGATING IN THESE
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: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE