Alert archive / Michigan / Small Craft Advisories in 2021

Small Craft Advisory 85, NWS Detroit, MI

December 16, 2021

NWS Detroit, MI issued this small craft advisory at Dec 16, 2021, 8:28 PM EST. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Dec 16, 2021, 8:28 PM EST (01:28 UTC)
Expired
Dec 17, 2021, 10:00 AM EST
In force
14 hr
Issued by
NWS Detroit, MI

The text

As transmitted.

136 
WHUS73 KDTX 170128
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
828 PM EST Thu Dec 16 2021

LHZ363-421-441-462-170900-
/O.CAN.KDTX.SR.W.0003.000000T0000Z-211217T0500Z/
/O.NEW.KDTX.GL.W.0026.211217T0128Z-211217T0900Z/
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-Port Austin to Harbor Beach MI-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
828 PM EST Thu Dec 16 2021

...GALE WARNING IN EFFECT UNTIL 4 AM EST FRIDAY...
...STORM WARNING IS CANCELLED...

* WHAT...Expect sustained winds up to 34 knots from the west 
  with gusts up to 45 knots. The largest significant waves will 
  be 11 feet with a potential maximum wave height of 16 feet.

* WHERE...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, Port Austin to Harbor Beach MI 
  and Lake Huron from Port Austin to Harbor Beach beyond 5NM Off 
  Shore.

* WHEN...The maximum winds are expected around 8 PM EST Thursday 
  with the largest waves expected around 8 PM EST Thursday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LHZ361-362-171500-
/O.CAN.KDTX.SR.W.0003.000000T0000Z-211217T0500Z/
/O.NEW.KDTX.GL.W.0026.211217T0128Z-211217T1500Z/
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-
828 PM EST Thu Dec 16 2021

...GALE WARNING IN EFFECT UNTIL 10 AM EST FRIDAY...
...STORM WARNING IS CANCELLED...

* WHAT...Expect sustained winds up to 33 knots from the west 
  with gusts up to 45 knots. The largest significant waves will 
  be 11 feet with a potential maximum wave height of 16 feet.

* WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque 
  Isle Lt beyond 5 NM off shore and Lake Huron from Presque Isle 
  Light to Sturgeon Point MI beyond 5NM off shore.

* WHEN...The maximum winds are expected around 8 PM EST Thursday 
  with the largest waves expected around 10 PM EST Thursday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LHZ422-442-443-171000-
/O.CAN.KDTX.GL.W.0025.000000T0000Z-211217T0500Z/
/O.NEW.KDTX.SC.Y.0085.211217T0128Z-211217T1000Z/
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI-
828 PM EST Thu Dec 16 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST FRIDAY...
...GALE WARNING IS CANCELLED...

* WHAT...Expect sustained winds up to 27 knots from the west with
  gusts up to 33 knots. The largest significant waves will be 4 
  feet with a potential maximum wave height of 5 feet.

* WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI, 
  Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron 
  MI.

* WHEN...The maximum winds are expected around 10 PM EST 
  Thursday with the largest waves expected around 10 PM EST 
  Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LHZ463-464-170230-
/O.CAN.KDTX.GL.W.0025.000000T0000Z-211217T0500Z/
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
828 PM EST Thu Dec 16 2021

...GALE WARNING IS CANCELLED...

Westerly winds will continue to slowly diminish tonight, with just
a few leftover gusts of 30 to 35 knots this evening. 

$$

LCZ460-LEZ444-170800-
/O.EXP.KDTX.GL.W.0025.000000T0000Z-211217T0100Z/
/O.NEW.KDTX.SC.Y.0085.211217T0128Z-211217T0800Z/
Lake St Clair-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
828 PM EST Thu Dec 16 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM EST FRIDAY...
...GALE WARNING HAS EXPIRED...

* WHAT...Expect sustained winds up to 19 knots from the west 
  with gusts up to 30 knots. The largest significant waves will 
  be 2 feet with a potential maximum wave height of 3 feet.

* WHERE...In Lake St Clair, Lake St Clair. In Lake Erie, 
  Michigan Waters of Lake Erie from Detroit River to North Cape 
  MI.

* WHEN...The maximum winds are expected around 8 PM EST Thursday 
  with the largest waves expected around 8 PM EST Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
3 follow-up statements
803 
WHUS73 KDTX 170858
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
358 AM EST Fri Dec 17 2021

LHZ363-421-441-462-171000-
/O.EXP.KDTX.GL.W.0026.000000T0000Z-211217T0900Z/
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-Port Austin to Harbor Beach MI-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
358 AM EST Fri Dec 17 2021

...GALE WARNING WILL EXPIRE AT 4 AM EST EARLY THIS MORNING...

Winds across southern Lake Huron will continue to decrease
throughout the morning, though gusts to near gales will remain 
possible.

$$

LHZ361-362-171500-
/O.CON.KDTX.GL.W.0026.000000T0000Z-211217T1500Z/
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-
358 AM EST Fri Dec 17 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING...

* WHAT...Expect sustained winds up to 33 knots from the west 
  with gusts up to 45 knots. The largest significant waves will 
  be 11 feet with a potential maximum wave height of 16 feet.

* WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque 
  Isle Lt beyond 5 NM off shore and Lake Huron from Presque Isle 
  Light to Sturgeon Point MI beyond 5NM off shore.

* WHEN...The maximum winds are expected around 8 PM EST Thursday 
  with the largest waves expected around 10 PM EST Thursday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LHZ422-442-443-171000-
/O.CON.KDTX.SC.Y.0085.000000T0000Z-211217T1000Z/
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI-
358 AM EST Fri Dec 17 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST EARLY
THIS MORNING...

* WHAT...Expect sustained winds up to 27 knots from the west 
  with gusts up to 33 knots. The largest significant waves will 
  be 4 feet with a potential maximum wave height of 5 feet.

* WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI, 
  Harbor Beach to Port Sanilac MI and Port Sanilac to Port Huron 
  MI.

* WHEN...The maximum winds are expected around 10 PM EST 
  Thursday with the largest waves expected around 10 PM EST 
  Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
261 
WHUS73 KDTX 170943
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
443 AM EST Fri Dec 17 2021

LHZ442-443-171045-
/O.EXP.KDTX.SC.Y.0085.000000T0000Z-211217T1000Z/
Harbor Beach to Port Sanilac MI-Port Sanilac to Port Huron MI-
443 AM EST Fri Dec 17 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 5 AM EST EARLY THIS
MORNING...

Winds and waves will continue to subside throughout the morning,
and have already dropped below Small Craft Advisory criteria.

$$

LHZ361-362-171500-
/O.CON.KDTX.GL.W.0026.000000T0000Z-211217T1500Z/
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-
443 AM EST Fri Dec 17 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING...

* WHAT...Expect sustained winds up to 27 knots from the west 
  with gusts up to 36 knots. The largest significant waves will 
  be 9 feet with a potential maximum wave height of 13 feet.

* WHERE...Lake Huron from 5NM east of Mackinac Bridge to Presque 
  Isle Lt beyond 5 NM off shore and Lake Huron from Presque Isle 
  Light to Sturgeon Point MI beyond 5NM off shore.

* WHEN...The maximum winds are expected around 4 AM EST Friday 
  with the largest waves expected around 4 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LHZ421-441-171500-
/O.EXB.KDTX.SC.Y.0085.000000T0000Z-211217T1500Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Port Austin to Harbor Beach MI-
443 AM EST Fri Dec 17 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING...

* WHAT...Expect sustained winds up to 23 knots from the west 
  with gusts up to 30 knots. The largest significant waves will 
  be 5 feet with a potential maximum wave height of 7 feet.

* WHERE...Outer Saginaw Bay SW of Alabaster to Port Austin MI to 
  Inner Saginaw Bay and Port Austin to Harbor Beach MI.

* WHEN...The maximum winds are expected around 4 AM EST Friday 
  with the largest waves expected around 4 AM EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LHZ422-171500-
/O.EXT.KDTX.SC.Y.0085.000000T0000Z-211217T1500Z/
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
443 AM EST Fri Dec 17 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* WHAT...Expect sustained winds up to 22 knots from the west with
  gusts up to 30 knots. The largest significant waves will be 3 
  feet with a potential maximum wave height of 4 feet.

* WHERE...Inner Saginaw Bay SW of Point Au Gres to Bay Port MI.

* WHEN...The maximum winds are expected around 4 AM EST Friday 
  with the largest waves expected around 4 AM EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
453 
WHUS73 KDTX 171446
MWWDTX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
946 AM EST Fri Dec 17 2021

LHZ361-362-171600-
/O.EXP.KDTX.GL.W.0026.000000T0000Z-211217T1500Z/
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-
946 AM EST Fri Dec 17 2021

...GALE WARNING WILL EXPIRE AT 10 AM EST THIS MORNING...

Winds have diminished below gale thresholds. Wind gusts now 
around 25 knots will continue to drop through the afternoon. 

$$

LHZ421-441-171600-
/O.EXP.KDTX.SC.Y.0085.000000T0000Z-211217T1500Z/
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-Port Austin to Harbor Beach MI-
946 AM EST Fri Dec 17 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 10 AM EST THIS MORNING...

Winds have diminished below small craft advisory thresholds. Wind
gusts now around 20 knots will continue to drop through the 
afternoon. 

$$

LHZ422-171600-
/O.EXP.KDTX.SC.Y.0085.000000T0000Z-211217T1500Z/
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
946 AM EST Fri Dec 17 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 10 AM EST THIS MORNING...

Winds have diminished below small craft advisory thresholds. Wind
gusts now around 20 knots will continue to drop through the 
afternoon. 

$$

What forecasters said that day

The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Detroit, MI wrote its last area forecast discussion before this small craft advisory went out at Dec 16, 6:24 PM EST, 2 hours 4 minutes earlier.

Area forecast discussion, Dec 16, 6:24 PM EST, 2 hours 4 minutes before
Area Forecast Discussion
National Weather Service Detroit/Pontiac MI
624 PM EST Thu Dec 16 2021

.AVIATION...

Cold frontal passage late this afternoon maintaining gusty
conditions, with recent observations still indicating gusts in
excess of 30 knots remain common. Outgoing forecast will continue to
highlight stronger gust potential over the next several hours with
winds from the west, before a more meaningful decline in gust
frequency and magnitude commences after 03z. Pocket of lower stratus
carrying cloud bases near 3000 ft will linger invof of MBS during
this time. Otherwise, a period of dry and stable conditions will
maintain clear skies throughout the Southeast Michigan airspace
tonight and Friday. Winds Friday remaining more modest from the west
to northwest. High clouds thicken late Friday into early Friday
night in advance of a low pressure system expected to track across
Ohio valley early Saturday. This system will bring the next chance
for some light wintry precipitation Saturday morning.

.DTW THRESHOLD PROBABILITIES...

* Moderate for exceeding crosswind threshold from 250/260 direction
  through 02z.

&&

.PREV DISCUSSION...
Issued at 332 PM EST Thu Dec 16 2021

DISCUSSION...

NEAR TERM / REST OF TODAY THROUGH TONIGHT

As of 330 PM EST...Have extended ongoing wind headlines until 8 PM
with continued gusts pushing in excess of 45 mph at times, and in
excess of 50 mph at Port Hope. Dropped Lenawee and Monroe counties
as wind gusts decrease with southward extend and observations closer
to the Ohio/Indiana border have shown more consistency with sub 40
mph gusts. Gusts should start diminishing with loss of daytime
heating, but will likely be delayed an hour or two as boundary layer
momentum takes some time to wind down. Peak gusts at times today
have exceeded well over 55 mph, with 62 mph recorded at MBS and 66
mph recorded at Port Hope.

Outside of the strong winds across the region today, some
observational sites were even reporting smoke as a result of fires
from Kansas - a testament to the strong winds with the entire low
pressure system as it traversed the central portion of the CONUS.
Anomalously warm airmass will remain in place for a few more hours
with a record high temperature set at Flint of at least 63 (breaking
the old record of 62 set in 1984) and at MBS of at least 62
(breaking the old record of 60 set in 1984).

Outside of some stratus clipping the Tri-Cities region into early
tonight, plenty of post-frontal dry air in place will ensue mostly
clear conditions tonight. Combined with increasing cold air
advection through the night, a roughly 25-30 degree temperature drop
will occur between the highs today and lows tonight - with low
temperatures settling in the upper 20s to lower 30s in the Detroit
metro.

SHORT TERM / FRIDAY THROUGH SATURDAY NIGHT

By Friday morning, the primary cold front will have quickly moved
well off to the east towards the eastern seaboard, with a secondary
cold front/thermal trough swinging through during the day
reinforcing the colder airmass in place versus the record/near-
record warmth of the past few days. The primary cold pocket
associated with the thermal trough will be displaced to the
northeast as upper heights over the Great Lakes become more zonal
and confluent in nature with time as the day progresses, leading to
a dry day. Fair amount of sunshine should also be around as well
despite light westerly flow downwind of Lake Michigan, with forecast
soundings depicting plenty of dry air throughout the atmospheric
column including the usually pessimistic NAM. However, there
should be at least some opaque high cloud coming in from the next
system from the mid-Mississippi Valley that will be discussed
further below. 850 hPa temps hovering around 0 C with low December
sun angle should yield high temps around normal - mid 30s north to
lower 40s south.

Attention then shifts to the aforementioned system quickly ejecting
out of the upper Mississippi Valley Friday night through Saturday
evening. Low pressure is expected to develop along a warm front
extending northeastward across the northern Ohio Valley, with
overrunning precip extending northward into Lower Michigan after
midnight Friday night and continuing through at least the middle of
Saturday afternoon. There will be some northern stream PV connection
for this system to work with, although much of it will be strung out
and displaced to the north, lending to more of a progressive nature
to the track of this system, and which implicates the exact track of
the low pressure center.

The combination of strong high pressure ridging across northwest
Ontario seeping down into the eastern Great Lakes and the approach
of the developing low will allow for near-surface winds to flip
east/northeasterly Friday night, allowing for low-level cold air to
be reinforced from the north (850 hPa temps falling to -2 to -5 C
from south to north by 12z Saturday), as well as some dry air to
filter in as well per forecast soundings. However, the track of the
surface low will be an important factor to the low-level thermal
profile, especially south of the M-59 corridor as this region looks
to be the delineation line between rain/snow and possibly a brief
period of wintry mix in between. Confidence at this point is
relatively high that the cold air will hold on M-59 north, even into
the daylight hours Saturday.

Overall QPF with the system looks to be generally between 0.10-0.15
inch south of M-59, with isolated areas up to 0.25 inch near the
Ohio border, and less than a tenth north of M-59. With precip onset
occurring at night coupled with dewpoint depressions of roughly 5
degrees (lows mid 20s to low 30s, dewpoints low/mid 20s) at onset,
there will likely be an evaporational cooling component as the lower-
levels saturate rather quickly. However, there is a hint at a bit of
a warm nose in the 5-10 kft layer in the early morning period
especially south of M-59 where a period of rain/sleet could mix in
before a transition to snow occurs. While some mix may occur further
north, thinking at this point enough of a deep layer of cold air
will be in place for snow to be the main ptype when precip arrives.

Accumulation potential will be greatest where the cold air can hold
on the longest (the low track again a big determining factor with
the thermal profile), with around an inch on grassy and elevated
surfaces possible across most of the region. Best potential for
roadways and paved surfaces to see accumulations still looks to be
north of M-59 at this time, and depending on rates, would not be
surprised to see totals closer to 2-2.5 inches where snow holds on
the longest.

High temperatures struggle to reach the mid 30s during the day with
lingering rain/snow showers south, and primarily snow showers north
exiting fully by the evening hours. Dry weather then returns
Saturday night with building high pressure from the west ushering in
another colder airmass with low temperatures solidly in the low/mid
20s. The only exception will be the possibility of some lingering
lake effect snow showers off Lake Huron that may clip the eastern
Thumb with some minor additional snow accumulations.

LONG TERM / SUNDAY THROUGH WEDNESDAY

The second half of the weekend into early next week will be
characterized by broad high pressure and general, broad zonal flow
aloft. This pattern will lead to general fair and benign conditions
across the region with seasonable temperatures.

MARINE...

Deep low pressure (~970 MB) has reached James Bay this afternoon.
Observations across the Central Great Lakes support all the current
headlines, with storm force gusts still occuring across the north
half of Lake Huron and gales to the south. Despite the low being so
far away, the main surge of low level cold advection is ongoing late
this afternoon, and will allow for increased mixing depths,
prolonging the strong winds into the early evening hours. Only
adjustment to current headlines was to extend the Gale warning over
Lake ST. Clair and Lake Erie until 8 PM, based on upstream obs over
southwest lower Michigan. Based on the current guidance and models,
for the 10 PM marine issuance, thinking we will convert the storm
warning to gale gale warning for northern third/half into the early
morning hours of Friday, with gale warnings dropping off south.

A surface ridge extending from high pressure over Central Canada
will build into the Central Great Lakes on Friday, leading to much
lighter winds. Another weaker low is then expected to track across
the southern Ohio Valley Saturday bringing light snow. Winds shift
from NE to NW as the low passes to the south however only a modest
uptick in strength is expected with this system with peak gusts only
topping out in the 20-25kt range. Even so, waves building over 4
feet across the southern Lake Huron basin may clip the nearshore
waters by Saturday evening, leading to possible small craft
advisories.

A strong low looks to be tracking across northern Ontario on Monday,
which should result in at least moderate (20-30 kts) southwest
winds, despite the warm advection pattern. The associated strong
cold front will then drive south Monday evening, and there is
potential for northwest wind gusts to reach and exceed 30 knots over
Lake Huron by Tuesday morning.

&&

.DTX WATCHES/WARNINGS/ADVISORIES...
MI...Wind Advisory until 8 PM EST this evening for MIZ047-048-053>055-
     060>063-068>070-075-076.

     High Wind Warning until 8 PM EST this evening for MIZ049.

Lake Huron...Storm Warning until midnight EST tonight for LHZ361>363-421-441-462.

     Gale Warning until midnight EST tonight for LHZ422-442-443-463-464.

Lake St Clair...Gale Warning until 8 PM EST this evening for LCZ460.

Michigan waters of Lake Erie...Gale Warning until 8 PM EST this evening for LEZ444.

&&

AVIATION.....MR
DISCUSSION...IRL
MARINE.......SF

You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.
Hazardous weather outlook, Dec 16, 3:35 PM EST, 4 hours 53 minutes before
Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
335 PM EST Thu Dec 16 2021

MIZ047-048-053>055-060>063-068>070-075-076-082-083-172045-
Midland-Bay-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
335 PM EST Thu Dec 16 2021

This hazardous weather outlook is for portions of southeast
Michigan.

.DAY ONE...This Afternoon and Tonight

A Wind Advisory remains in effect until 8 PM. Refer to the latest
Weather Message (NPW) for additional details.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Light snow arrives late Friday night into Saturday. A coating to an
inch of accumulation is expected by Saturday evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

MIZ049-172045-
Huron-
335 PM EST Thu Dec 16 2021

This hazardous weather outlook is for portions of southeast
Michigan.

.DAY ONE...This Afternoon and Tonight

A High Wind Warning remains in effect until 8 PM. Strongest winds
will occur along the shoreline of Saginaw Bay. Refer to the latest
Weather Message (NPW) for additional details.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Light snow arrives late Friday night into Saturday. 1 to 2 inches of
accumulation is expected by Saturday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-172045-
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-
335 PM EST Thu Dec 16 2021

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

.DAY ONE...This Afternoon and Tonight

Storm Warnings are in effect for the Lake Huron open waters and
nearshore zones north of Harbor Beach/Inner Saginaw Bay. Gale
Warnings are in effect for the remaining marine zones. Refer to the
latest Marine Weather Message (MWW) for additional details.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

.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.

IRL

In the hours before

Local storm report, Dec 16, 4:23 PM EST, 4 hours 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
423 PM EST THU DEC 16 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1254 PM     NON-TSTM WND GST 2 ESE HURON CITY        44.02N 82.80W
12/16/2021  M66 MPH          HURON              MI   ASOS

            ASOS STATION KP58 PORT HOPE.

1255 PM     NON-TSTM WND GST 2 ESE HURON CITY        44.02N 82.80W
12/16/2021  M66 MPH          HURON              MI   MESONET

            MESONET STATION KP58 1 ESE HURON CITY.

1158 AM     NON-TSTM WND GST 2 ENE FREELAND          43.53N 84.08W
12/16/2021  M62 MPH          SAGINAW            MI   ASOS

            ASOS STATION KMBS SAGINAW.

0342 PM     NON-TSTM WND GST 1 E HARBOR BEACH        43.85N 82.64W
12/16/2021  M54 MPH          HURON              MI   BUOY

            BUOY STATION HRBM4 HARBOR BEACH, MI.

0129 PM     NON-TSTM WND GST 4 N RANKIN              42.97N 83.75W
12/16/2021  M53 MPH          GENESEE            MI   ASOS

            ASOS STATION KFNT FLINT.

1045 AM     NON-TSTM WND GST 3 NW BELLEVILLE         42.23N 83.53W
12/16/2021  M52 MPH          WAYNE              MI   ASOS

            ASOS STATION KYIP DETROIT WILLOW.

0115 PM     NON-TSTM WND GST 2 SSE BAD AXE           43.78N 82.98W
12/16/2021  M52 MPH          HURON              MI   AWOS

            AWOS STATION KBAX BAD AXE.

1004 AM     NON-TSTM WND GST 2 ENE ROMULUS           42.23N 83.33W
12/16/2021  M51 MPH          WAYNE              MI   ASOS

            ASOS STATION KDTW DETROIT WAYNE.

0332 PM     NON-TSTM WND GST 1 ESE BROWN CITY        43.21N 82.98W
12/16/2021  M50 MPH          SANILAC            MI   MESONET

            MESONET STATION DW1031 BROWN CITY.

0837 AM     NON-TSTM WND GST 1 W WATERFORD           42.67N 83.42W
12/16/2021  M49 MPH          OAKLAND            MI   ASOS

            ASOS STATION KPTK PONTIAC.

0915 AM     NON-TSTM WND GST 1 NNE REESE             43.46N 83.68W
12/16/2021  M49 MPH          TUSCOLA            MI   MESONET

            MESONET STATION EW3533 REESE.

1038 AM     NON-TSTM WND GST 2 NNW ROCHESTER         42.72N 83.15W
12/16/2021  M49 MPH          OAKLAND            MI   MESONET

            MESONET STATION AV664 OAKLAND.

0340 PM     NON-TSTM WND GST 14 WNW CASEVILLE        44.02N 83.54W
12/16/2021  M49 MPH          LHZ421             MI   MESONET

            MESONET STATION GSLM4 7 E AU GRES.

0115 PM     NON-TSTM WND GST 3 WSW CARO              43.47N 83.45W
12/16/2021  M48 MPH          TUSCOLA            MI   AWOS

            AWOS STATION KCFS CARO TUSCOLA.

0942 AM     NON-TSTM WND GST 1 NNE PORT HURON        43.01N 82.42W
12/16/2021  M47 MPH          ST. CLAIR          MI   BUOY

            BUOY STATION FTGM4 FORT GRATIOT, MI.

1114 AM     NON-TSTM WND GST 4 NE SALINE             42.22N 83.73W
12/16/2021  M47 MPH          WASHTENAW          MI   ASOS

            ASOS STATION KARB ANN ARBOR.

0353 PM     NON-TSTM WND GST 1 NE BAY CITY           43.60N 83.88W
12/16/2021  M47 MPH          BAY                MI   MESONET

            MESONET STATION GW0833 BAY CITY.

1100 AM     NON-TSTM WND GST 1 SW KINDE              43.92N 83.01W
12/16/2021  M46 MPH          HURON              MI   MESONET

            MESONET STATION MIKND 1.4 SW KINDE (MAWN).

1100 AM     NON-TSTM WND GST 3 WSW LINWOOD           43.72N 84.03W
12/16/2021  M46 MPH          BAY                MI   MESONET

            MESONET STATION MILIN 2.9 W LINWOOD (MAWN).

1222 PM     NON-TSTM WND GST 2 SSE NORTHEAST DETROIT 42.40N 83.02W
12/16/2021  M46 MPH          WAYNE              MI   ASOS

            ASOS STATION KDET DETROIT CITY AIR.

1115 AM     NON-TSTM WND GST 1 NNE PORT HURON        43.01N 82.42W
12/16/2021  M45 MPH          ST. CLAIR          MI   MESONET

            MESONET STATION CW7876 PORT HURON.

0100 PM     NON-TSTM WND GST 3 SSE RAPSON            43.81N 82.85W
12/16/2021  M45 MPH          HURON              MI   MESONET

            MESONET STATION MIVER 3.5 SE RAPSON (MAWN).

0315 PM     NON-TSTM WND GST 1 NW CORUNNA            43.00N 84.13W
12/16/2021  M45 MPH          SHIAWASSEE         MI   AWOS

            AWOS STATION KRNP OWOSSO.

0355 PM     NON-TSTM WND GST 4 NNW MIDLAND           43.67N 84.27W
12/16/2021  M45 MPH          MIDLAND            MI   AWOS

            AWOS STATION KIKW MIDLAND BARSTOW.

1200 PM     NON-TSTM WND GST 3 E FAIRGROVE           43.53N 83.49W
12/16/2021  M44 MPH          TUSCOLA            MI   MESONET

            MESONET STATION MIFGV 3.1 SE AKRON (MAWN).

0156 PM     NON-TSTM WND GST 1 SE GREGORY            42.44N 84.07W
12/16/2021  M42 MPH          LIVINGSTON         MI   MESONET

            MESONET STATION FW3044 GREGORY.

0401 PM     NON-TSTM WND GST 2 NE FENTON             42.82N 83.68W
12/16/2021  M42 MPH          OAKLAND            MI   MESONET

            MESONET STATION HRAM4 HOLLY.

0405 PM     NON-TSTM WND GST 4 N BAY PORT            43.91N 83.38W
12/16/2021  M42 MPH          HURON              MI   MESONET

            MESONET STATION CW4869 CASEVILLE.

1000 AM     NON-TSTM WND GST 3 S CASEVILLE           43.90N 83.27W
12/16/2021  M41 MPH          HURON              MI   MESONET

            MESONET STATION MIPIG 3.0 S CASEVILLE
            (MAWN).

1100 AM     NON-TSTM WND GST 4 S REESE               43.40N 83.70W
12/16/2021  M41 MPH          TUSCOLA            MI   MESONET

            MESONET STATION MIRVL 3.6 S REESE (MAWN).

1232 PM     NON-TSTM WND GST 3 SW ADRIAN             41.87N 84.08W
12/16/2021  M41 MPH          LENAWEE            MI   ASOS

            ASOS STATION KADG ADRIAN.

0116 PM     NON-TSTM WND GST 2 E ORTONVILLE          42.85N 83.41W
12/16/2021  M41 MPH          OAKLAND            MI   MESONET

            MESONET STATION FW0420 ORTONVILLE.

1258 PM     NON-TSTM WND GST 4 ENE MOUNT CLEMENS     42.62N 82.82W
12/16/2021  M41 MPH          LCZ460             MI   AWOS

            AWOS STATION KMTC SELFRIDGE ANGB.

0600 AM     NON-TSTM WND GST 1 SSE PORT SANILAC      43.42N 82.54W
12/16/2021  M40 MPH          SANILAC            MI   MESONET

            MESONET STATION PSCM4 PORT SANILAC.

1100 AM     NON-TSTM WND GST 2 SSW ROMEO             42.78N 83.02W
12/16/2021  M40 MPH          MACOMB             MI   MESONET

            MESONET STATION MIROM 2.1 SW ROMEO (MAWN).

0337 PM     NON-TSTM WND GST 4 WSW CLIO              43.15N 83.80W
12/16/2021  M40 MPH          GENESEE            MI   MESONET

            MESONET STATION GW0560 CLIO.

0555 AM     NON-TSTM WND GST 2 NW MONROE             41.93N 83.42W
12/16/2021  M39 MPH          MONROE             MI   AWOS

            AWOS STATION KTTF MONROE.

1200 PM     NON-TSTM WND GST 3 NNE MUNGER            43.56N 83.76W
12/16/2021  M39 MPH          BAY                MI   MESONET

            MESONET STATION MIMGR 2.8 NE MUNGER (MAWN).

1245 PM     NON-TSTM WND GST 3 NNW CARLAND           43.10N 84.34W
12/16/2021  M39 MPH          SHIAWASSEE         MI   MESONET

            MESONET STATION CW2125 ELSIE.

0359 PM     NON-TSTM WND GST 4 WSW HOWELL            42.59N 84.00W
12/16/2021  M39 MPH          LIVINGSTON         MI   MESONET

            MESONET STATION EW5660 HOWELL.

0835 AM     NON-TSTM WND GST 2 WNW MARYSVILLE        42.92N 82.52W
12/16/2021  M38 MPH          ST. CLAIR          MI   AWOS

            AWOS STATION KPHN PORT HURON.

0316 PM     NON-TSTM WND GST 3 NNE KAWKAWLIN         43.69N 83.92W
12/16/2021  M38 MPH          BAY                MI   MESONET

            MESONET STATION EW8903 BAY CITY.

0200 PM     NON-TSTM WND GST 2 SSE SAINT CLAIR SHORE 42.47N 82.88W
12/16/2021  M38 MPH          LCZ460             MI   MESONET

            MESONET STATION CLSM4 1 N GROSSE POINTE
            SHORE.

0801 AM     NON-TSTM WND GST 3 E LYNDON TOWNSHIP     42.38N 84.01W
12/16/2021  M37 MPH          WASHTENAW          MI   MESONET

            MESONET STATION FW8418 GREGORY.

0845 AM     NON-TSTM WND GST 1 WSW SAINT CLAIR       42.82N 82.52W
12/16/2021  M37 MPH          ST. CLAIR          MI   MESONET

            MESONET STATION GW0162 SAINT CLAIR.

1231 PM     NON-TSTM WND GST 1 W AUBURN              43.60N 84.10W
12/16/2021  M37 MPH          BAY                MI   MESONET

            MESONET STATION DW9250 AUBURN.

0515 AM     NON-TSTM WND GST 2 SSW ROCHESTER         42.66N 83.13W
12/16/2021  M36 MPH          OAKLAND            MI   MESONET

            MESONET STATION AV524 ROCHESTER HILLS.

0800 AM     NON-TSTM WND GST 1 N MILFORD             42.60N 83.60W
12/16/2021  M36 MPH          OAKLAND            MI   MESONET

            MESONET STATION MICMC 1.3 N MILFORD (MAWN).

1031 AM     NON-TSTM WND GST 4 NE EMMETT             43.03N 82.69W
12/16/2021  M36 MPH          ST. CLAIR          MI   MESONET

            MESONET STATION FW3669 KENOCKEE.

1148 AM     NON-TSTM WND GST 2 NE WARREN             42.51N 83.00W
12/16/2021  M36 MPH          MACOMB             MI   MESONET

            MESONET STATION FW6474 WARREN.

0100 PM     NON-TSTM WND GST 2 N SANDUSKY            43.46N 82.84W
12/16/2021  M36 MPH          SANILAC            MI   MESONET

            MESONET STATION MISDK 2.3 N SANDUSKY (MAWN).

0345 PM     NON-TSTM WND GST 2 W ANN ARBOR           42.28N 83.77W
12/16/2021  M36 MPH          WASHTENAW          MI   MESONET

            MESONET STATION DW7729 ANN ARBOR.

0100 PM     NON-TSTM WND GST 13 NNW BAY PARK         43.81N 83.72W
12/16/2021  M36 MPH          LHZ422             MI   MESONET

            MESONET STATION SBLM4 12 NW BAY PARK.

0715 AM     NON-TSTM WND GST MELVIN                  43.18N 82.86W
12/16/2021  M35 MPH          SANILAC            MI   MESONET

            MESONET STATION AS898 MELVIN.

0715 AM     NON-TSTM WND GST 3 SE DECKERVILLE        43.50N 82.70W
12/16/2021  M35 MPH          SANILAC            MI   MESONET

            MESONET STATION FW1036 DECKERVILLE.

0800 AM     NON-TSTM WND GST EMMETT                  42.99N 82.76W
12/16/2021  M35 MPH          ST. CLAIR          MI   MESONET

            MESONET STATION MIEMT EMMETT (MAWN).

1216 PM     NON-TSTM WND GST 1 SE WHITMORE LAKE      42.41N 83.73W
12/16/2021  M35 MPH          WASHTENAW          MI   MESONET

            MESONET STATION FW5647 WHITMORE LAKE.

0115 PM     NON-TSTM WND GST 2 S GROSSE ILE          42.10N 83.15W
12/16/2021  M35 MPH          WAYNE              MI   AWOS

            AWOS STATION KONZ DETROIT GROSSE I.

0215 PM     NON-TSTM WND GST 2 SW LAMBERTVILLE       41.73N 83.65W
12/16/2021  M35 MPH          MONROE             MI   AWOS

            AWOS STATION KDUH LAMBERTVILLE.

&&

The office that day

Everything else NWS Detroit, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 16, 8:28 PM ESTGale WarningDTX14 hr
Dec 17, 3:54 PM ESTSmall Craft AdvisoryDTX42 hr

Nearby

Small Craft Advisories in Michigan, 2021Every small craft advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.