Small Craft Advisory 5, NWS Grand Rapids, MI

182 
WHUS73 KGRR 121449
MWWGRR

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
949 AM EST THU JAN 12 2017

LMZ844>849-122300-
/O.CON.KGRR.SC.Y.0005.170112T2000Z-170113T2100Z/
ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI-
HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI-
WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI-
949 AM EST THU JAN 12 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 4 PM EST FRIDAY...

* WINDS...WEST 15 TO 25 KNOTS THIS AFTERNOON THEN NORTHWEST 
  INCREASING TO 30 KNOTS TONIGHT. 

* WAVES...BUILDING TO 3 TO 5 FEET LATE THIS AFTERNOON AND TO 4 TO
  6 FEET TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS OR WAVES ARE EXPECTED TO
PRODUCE HAZARDOUS CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

669 
WHUS73 KGRR 122022
MWWGRR

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
322 PM EST THU JAN 12 2017

LMZ844>849-130430-
/O.CON.KGRR.SC.Y.0005.000000T0000Z-170113T2100Z/
ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI-
HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI-
WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI-
322 PM EST THU JAN 12 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST FRIDAY...

* WINDS...NORTHWEST INCREASING TO 30 KNOTS TONIGHT. WINDS
  DIMINISHING FRIDAY.

* WAVES...BUILDING 4 TO 6 FEET TONIGHT.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS OR WAVES ARE EXPECTED TO
PRODUCE HAZARDOUS CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

136 
WHUS73 KGRR 130222
MWWGRR

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
922 PM EST THU JAN 12 2017

LMZ844>849-131030-
/O.CON.KGRR.SC.Y.0005.000000T0000Z-170113T2100Z/
ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI-
HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI-
WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI-
922 PM EST THU JAN 12 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST FRIDAY...

* WINDS...NORTHWEST TO 30 KNOTS TONIGHT. WINDS DIMINISHING 
FRIDAY. 

* WAVES...4 TO 6 FEET TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS OR WAVES ARE EXPECTED TO
PRODUCE HAZARDOUS CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

337 
WHUS73 KGRR 130828
MWWGRR

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
328 AM EST FRI JAN 13 2017

LMZ844>849-131630-
/O.CON.KGRR.SC.Y.0005.000000T0000Z-170113T2100Z/
ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI-
HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI-
WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI-
328 AM EST FRI JAN 13 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

* WINDS...NORTHWEST 10 TO 20 KNOTS TODAY...DIMINISHING THIS
  AFTERNOON.

* WAVES...3 TO 6 FEET EARLY THIS MORNING...DIMINISHING DURING THE
DAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS OR WAVES ARE EXPECTED TO
PRODUCE HAZARDOUS CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

083 
WHUS73 KGRR 131509
MWWGRR

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1009 AM EST FRI JAN 13 2017

LMZ844>849-132100-
/O.CON.KGRR.SC.Y.0005.000000T0000Z-170113T2100Z/
ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI-
HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI-
WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI-
1009 AM EST FRI JAN 13 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

* WINDS...NORTHWEST 10 TO 20 KNOTS TODAY...DIMINISHING THIS 
  AFTERNOON. 

* WAVES...3 TO 5 FEET DIMINISHING TO 1 TO 3 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS OR WAVES ARE EXPECTED TO
PRODUCE HAZARDOUS CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

551 
WHUS73 KGRR 132043
MWWGRR

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
343 PM EST FRI JAN 13 2017

LMZ844>849-132145-
/O.CAN.KGRR.SC.Y.0005.000000T0000Z-170113T2100Z/
ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI-
HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI-
WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI-
343 PM EST FRI JAN 13 2017

...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS CANCELLED THE
SMALL CRAFT ADVISORY. 



$$

Area Forecast Discussion
National Weather Service Grand Rapids MI
328 AM EST Thu Jan 12 2017

LATEST UPDATE...
Synopsis/Short Term/Long Term/Marine

.SYNOPSIS...
Issued at 328 AM EST Thu Jan 12 2017

Colder air will move in today and some light snow is expected into
this afternoon. Generally fair weather can be expected into the
weekend with a chance of snow Friday night.

&&

.SHORT TERM...(Today through Saturday)
Issued at 328 AM EST Thu Jan 12 2017

Cold air currently moving into lower Michigan and the forecast
issue in the near term is for light snow today and again Friday
night.

For today...patchy freezing drizzle is expected early this morning
as the DGZ is unsaturated. Soundings show deeper moisture
upstream and this will be arriving the next few hours along with
some f-gen forcing, so we expect the mesoscale snow bands across
Iowa and southern Wisconsin to continue to advance into Lower
Michigan and persist into the afternoon. Some light accums are
expected across the northern half of the forecast area.

Sfc ridging building in for Friday but another area of f-gen
arrives Friday night and this one could put down a stripe of
light snow across the central or northern forecast area.
Superblend guidance was bumped up along with QPF for the 06Z to
12Z Saturday period.

.LONG TERM...(Saturday night through Wednesday)
Issued at 329 AM EST Thu Jan 12 2017

The first couple of days in the long term are quiet. The focus
then shifts to the system that is poised to moved through
the Midwest during the beginning of the work week.

Not changed much over the past 24 hours. The upper level trough over
the Western U.S. will give way to a closed low. The low tracks
through the Central Plains late Sunday into Monday bringing a brief
period of snow at the onset. Mild southerly flow then brings
temperatures well into the 30s and 40s, changing much of the precip
to rain late Monday morning into Tuesday. Some of the precipitation
in central Lower may mix snow late Tuesday. However, mid levels
seems far too warm to support much in the way of frozen precip.

Much cooler air is expected to move in later in the week, brining
near normal temperatures back to the region, while the pattern
continues to remain active.

&&

.AVIATION...(For the 06Z TAFS through 06Z Thursday night)
Issued at 1258 AM EST Thu Jan 12 2017

Rain continues to push off to the east overnight with areas of
drizzle and freezing drizzle possible. Otherwise the main concern
will be low ceilings, as we hold onto IFR and spots of LIFR
through early Thursday morning.

Light snow showers are possible Thursday morning and will be
accompanied by some IFR vsbys. Much of the precipitation should
be gone by early afternoon with gradual improvement. Winds will
swing from the north and northwest to the west by Thursday
evening, generally between 5-15 kts. We will see MVFR conditions
tomorrow afternoon improve to VFR through the evening.

&&

.MARINE...
Issued at 329 AM EST Thu Jan 12 2017

Winds and waves will build today and a small craft advisory will
be in effect from late this afternoon into Friday afternoon.

&&

.HYDROLOGY...
Issued at 330 PM EST Wed Jan 11 2017

Rivers are running above normal across the area due to rain, melting
snow and ice jams. The Looking Glass River at Eagle and the Grand
River at Comstock Park have warnings active, as they are expected to
reach flood stage. A watch is out on the Grand River at Robinson
Township due to ice jam potential. Multiple sites also have
advisories active. A period of colder than normal temperatures today
through the weekend may allow river ice to redevelop.

&&

.GRR WATCHES/WARNINGS/ADVISORIES...
MI...None.
LM...Small Craft Advisory from 3 PM this afternoon to 4 PM EST Friday
     for LMZ844>849.

&&

SYNOPSIS...Ostuno
SHORT TERM...Ostuno
LONG TERM...JAM
AVIATION...JAM
HYDROLOGY...63
MARINE...Ostuno

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
441 PM EST WED JAN 11 2017

MIZ037>040-043>046-050>052-056>059-064>067-071>074-120830-
MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-
MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-
INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-
441 PM EST WED JAN 11 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

SNOW AND FREEZING RAIN MAY IMPACT TRAVEL THIS AFTERNOON ACROSS
AREAS NORTH OF A LINE FROM HART TO MOUNT PLEASANT. THE THREAT WILL
MOVE SOUTH TO I-96 AND I-94 AFTER MIDNIGHT.

AN ISOLATED THUNDERSTORM WILL BE POSSIBLE THROUGH THIS EVENING. THE
BEST CHANCE WILL BE ALONG AND SOUTH OF INTERSTATE 96.

AREAS OF FOG WILL BE LIKELY SOUTH OF INTERSTATE 96 THROUGH THIS
EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

LMZ844>849-120830-
ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI-
HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI-
WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI-
441 PM EST WED JAN 11 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

WINDS AND WAVES WILL POSE A HAZARD TO MARINERS ON LAKE MICHIGAN
THROUGH EARLY THIS EVENING.

AN ISOLATED THUNDERSTORM WILL BE POSSIBLE THROUGH THIS EVENING. THE
BEST CHANCE WILL BE NEAR AND SOUTH OF MUSKEGON.

AREAS OF FOG WILL BE LIKELY SOUTH OF MUSKEGON THROUGH THIS EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

OSTUNO NJJ