Alert archive / Michigan / Small Craft Advisories in 2021

Small Craft Advisory 31, NWS Marquette, MI

April 4, 2021

NWS Marquette, MI issued this small craft advisory at Apr 4, 2021, 9:42 PM EDT. It took effect at Apr 5, 2021, 5:00 PM EDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Apr 4, 2021, 9:42 PM EDT (01:42 UTC)
In effect from
Apr 5, 2021, 5:00 PM EDT
Expired
Apr 6, 2021, 6:00 AM EDT
In force
13 hr
Issued by
NWS Marquette, MI

The text

As transmitted.

645 
WHUS73 KMQT 050142
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
942 PM EDT Sun Apr 4 2021

LSZ246-050945-
/O.CAN.KMQT.SC.Y.0030.000000T0000Z-210406T1000Z/
/O.NEW.KMQT.SC.Y.0031.210405T2200Z-210406T1000Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
942 PM EDT Sun Apr 4 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM MONDAY TO 6 AM EDT
TUESDAY...

* WHAT...Southeast winds 5 to 15 kt with gusts up to 25 kt and 
  waves 2 to 5 ft expected.

* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI.

* WHEN...From 6 PM Monday to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ243-050245-
/O.CAN.KMQT.SC.Y.0030.000000T0000Z-210405T1000Z/
Upper Entrance of Portage Canal to Eagle River MI-
942 PM EDT Sun Apr 4 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Offshore winds are generally 15 kt or less in the area. Therefore,
the Small Craft Advisory is cancelled.

$$

LSZ244-245-050945-
/O.EXT.KMQT.SC.Y.0030.000000T0000Z-210406T1300Z/
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
942 PM EDT Sun Apr 4 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM EDT TUESDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 30 kt and 
  waves 3 to 6 ft occurring.

* WHERE...Manitou Island to Point Isabelle MI and Eagle River to 
  Manitou Island MI.

* WHEN...Until 9 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ248-050945-
/O.CON.KMQT.SC.Y.0030.210405T1200Z-210406T0000Z/
Seul Choix Point to Point Detour MI-
942 PM EDT Sun Apr 4 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM TO 8 PM EDT
MONDAY...

* WHAT...East winds 10 to 15 kt with gusts up to 25 kt expected.

* WHERE...Seul Choix Point to Point Detour MI.

* WHEN...From 8 AM to 8 PM EDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ250-251-050945-
/O.CON.KMQT.SC.Y.0030.210405T0900Z-210406T1200Z/
Munising to Grand Marais MI-Grand Marais to Whitefish Point MI-
942 PM EDT Sun Apr 4 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 AM MONDAY TO
8 AM EDT TUESDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 30 kt 
  expected.

* WHERE...Munising to Grand Marais MI and Grand Marais to 
  Whitefish Point MI.

* WHEN...From 5 AM Monday to 8 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
5 follow-up statements
262 
WHUS73 KMQT 050920
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
520 AM EDT Mon Apr 5 2021

LSZ243-051730-
/O.EXB.KMQT.SC.Y.0031.210405T2200Z-210406T0600Z/
Upper Entrance of Portage Canal to Eagle River MI-
520 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 2 AM
EDT TUESDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 30 kt 
  expected.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI.

* WHEN...From 6 PM this evening to 2 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-249-051730-
/O.EXB.KMQT.SC.Y.0031.210405T2100Z-210406T1000Z/
Huron Islands to Marquette MI-Marquette to Munising MI-
520 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
6 AM EDT TUESDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 30 kt and 
  waves 2 to 4 ft expected.

* WHERE...Huron Islands to Marquette MI and Marquette to 
  Munising MI.

* WHEN...From 5 PM this afternoon to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ244-245-051730-
/O.EXT.KMQT.SC.Y.0030.000000T0000Z-210406T1600Z/
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
520 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON EDT TUESDAY...

* WHAT...Southeast winds 15 to 25 kt with gusts up to 30 kt and 
  waves 4 to 7 ft occurring.

* WHERE...Manitou Island to Point Isabelle MI and Eagle River to 
  Manitou Island MI.

* WHEN...Until noon EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ246-051730-
/O.EXT.KMQT.SC.Y.0031.210405T2100Z-210406T1000Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
520 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 5 PM THIS AFTERNOON TO
6 AM EDT TUESDAY...

* WHAT...Southeast winds 5 to 15 kt with gusts up to 25 kt and 
  waves 3 to 6 ft expected.

* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI.

* WHEN...From 5 PM this afternoon to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ250-251-051730-
/O.CON.KMQT.SC.Y.0030.000000T0000Z-210406T1200Z/
Munising to Grand Marais MI-Grand Marais to Whitefish Point MI-
520 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT
TUESDAY...

* WHAT...Southeast winds 15 to 25 kt with gusts up to 30 kt and 
  waves 2 to 4 ft occurring.

* WHERE...Munising to Grand Marais MI and Grand Marais to 
  Whitefish Point MI.

* WHEN...Until 8 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ248-051730-
/O.CON.KMQT.SC.Y.0030.210405T1200Z-210406T0000Z/
Seul Choix Point to Point Detour MI-
520 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...East winds 15 to 20 kt with gusts up to 25 knots 
  expected. 

* WHERE...Seul Choix Point to Point Detour MI.

* WHEN...Until 8 PM EDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
297 
WHUS73 KMQT 051416
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1016 AM EDT Mon Apr 5 2021

LSZ243-052230-
/O.CON.KMQT.SC.Y.0031.210405T2200Z-210406T0600Z/
Upper Entrance of Portage Canal to Eagle River MI-
1016 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 2 AM EDT TUESDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 30 kt 
  expected.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI.

* WHEN...From 6 PM this evening to 2 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ244-245-052230-
/O.CON.KMQT.SC.Y.0030.000000T0000Z-210406T1600Z/
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
1016 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT
TUESDAY...

* WHAT...Southeast winds 15 to 25 kt with gusts up to 30 kt and 
  waves 4 to 7 ft occurring.

* WHERE...Manitou Island to Point Isabelle MI and Eagle River to 
  Manitou Island MI.

* WHEN...Until noon EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ246-052230-
/O.CON.KMQT.SC.Y.0031.210405T2100Z-210406T1000Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
1016 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 6 AM EDT TUESDAY...

* WHAT...Southeast winds 5 to 15 kt with gusts up to 25 kt and 
  waves 3 to 6 ft expected.

* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI.

* WHEN...From 5 PM this afternoon to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-249-052230-
/O.CON.KMQT.SC.Y.0031.210405T2100Z-210406T1000Z/
Huron Islands to Marquette MI-Marquette to Munising MI-
1016 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 6 AM EDT TUESDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 30 kt and 
  waves 2 to 4 ft expected.

* WHERE...Marquette to Munising MI and Huron Islands to 
  Marquette MI.

* WHEN...From 5 PM this afternoon to 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ250-251-052230-
/O.CON.KMQT.SC.Y.0030.000000T0000Z-210406T1200Z/
Munising to Grand Marais MI-Grand Marais to Whitefish Point MI-
1016 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT
TUESDAY...

* WHAT...Southeast winds 15 to 25 kt with gusts up to 30 kt and 
  waves 2 to 4 ft occurring.

* WHERE...Munising to Grand Marais MI and Grand Marais to 
  Whitefish Point MI.

* WHEN...Until 8 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ248-052230-
/O.CON.KMQT.SC.Y.0030.000000T0000Z-210406T0000Z/
Seul Choix Point to Point Detour MI-
1016 AM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...East winds 10 to 15 kt with gusts up to 25 kt occurring.

* WHERE...Seul Choix Point to Point Detour MI.

* WHEN...Until 8 PM EDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

JAW
074 
WHUS73 KMQT 052010
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
410 PM EDT Mon Apr 5 2021

LSZ243-060415-
/O.CON.KMQT.SC.Y.0031.210405T2200Z-210406T0600Z/
Upper Entrance of Portage Canal to Eagle River MI-
410 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
TUESDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 25 kt 
  expected.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI.

* WHEN...Until 2 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ244-245-060415-
/O.CON.KMQT.SC.Y.0030.000000T0000Z-210406T1600Z/
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
410 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT
TUESDAY...

* WHAT...Southeast winds 15 to 25 kt with gusts up to 30 kt and 
  waves 4 to 7 ft occurring.

* WHERE...Manitou Island to Point Isabelle MI and Eagle River to 
  Manitou Island MI.

* WHEN...Until noon EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ246-060415-
/O.CON.KMQT.SC.Y.0031.210405T2100Z-210406T1000Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
410 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
TUESDAY...

* WHAT...East winds 5 to 15 kt with gusts up to 25 kt and waves 
  3 to 6 ft expected.

* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI.

* WHEN...Until 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-249-060415-
/O.CON.KMQT.SC.Y.0031.210405T2100Z-210406T1000Z/
Huron Islands to Marquette MI-Marquette to Munising MI-
410 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
TUESDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 2 to 4 ft expected.

* WHERE...Marquette to Munising MI and Huron Islands to 
  Marquette MI.

* WHEN...Until 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ250-251-060415-
/O.CON.KMQT.SC.Y.0030.000000T0000Z-210406T1200Z/
Munising to Grand Marais MI-Grand Marais to Whitefish Point MI-
410 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT
TUESDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 30 kt 
  occurring.

* WHERE...Munising to Grand Marais MI and Grand Marais to 
  Whitefish Point MI.

* WHEN...Until 8 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ248-060000-
/O.CON.KMQT.SC.Y.0030.000000T0000Z-210406T0000Z/
Seul Choix Point to Point Detour MI-
410 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 25 kt 
  occurring.

* WHERE...Seul Choix Point to Point Detour MI.

* WHEN...Until 8 PM EDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
791 
WHUS73 KMQT 060147
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
947 PM EDT Mon Apr 5 2021

LSZ243-060600-
/O.CON.KMQT.SC.Y.0031.000000T0000Z-210406T0600Z/
Upper Entrance of Portage Canal to Eagle River MI-
947 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
TUESDAY...

* WHAT...Southeast winds 15 to 20 kt with gusts up to 25 kt 
  occurring.

* WHERE...Upper Entrance of Portage Canal to Eagle River MI.

* WHEN...Until 2 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ244-245-061000-
/O.CON.KMQT.SC.Y.0030.000000T0000Z-210406T1600Z/
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
947 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT
TUESDAY...

* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and 
  waves 4 to 7 ft occurring.

* WHERE...Manitou Island to Point Isabelle MI and Eagle River to 
  Manitou Island MI.

* WHEN...Until noon EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ246-061000-
/O.CON.KMQT.SC.Y.0031.000000T0000Z-210406T1000Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
947 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
TUESDAY...

* WHAT...East winds 5 to 15 kt and waves 3 to 6 ft occurring.

* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI.

* WHEN...Until 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-249-061000-
/O.CON.KMQT.SC.Y.0031.000000T0000Z-210406T1000Z/
Huron Islands to Marquette MI-Marquette to Munising MI-
947 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
TUESDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 25 kt and 
  waves 2 to 4 ft occurring.

* WHERE...Marquette to Munising MI and Huron Islands to 
  Marquette MI.

* WHEN...Until 6 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ250-251-061000-
/O.CON.KMQT.SC.Y.0030.000000T0000Z-210406T1200Z/
Munising to Grand Marais MI-Grand Marais to Whitefish Point MI-
947 PM EDT Mon Apr 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT
TUESDAY...

* WHAT...Southeast winds 15 to 20 kt with gusts up to 30 kt 
  occurring.

* WHERE...Munising to Grand Marais MI and Grand Marais to 
  Whitefish Point MI.

* WHEN...Until 8 AM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
056 
WHUS73 KMQT 060819
MWWMQT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
419 AM EDT Tue Apr 6 2021

LSZ244-245-061200-
/O.EXT.KMQT.SC.Y.0030.000000T0000Z-210406T1200Z/
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
419 AM EDT Tue Apr 6 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 AM EDT THIS
MORNING...

* WHAT...South winds 5 to 15 kt and waves 3 to 6 ft occurring.

* WHERE...Manitou Island to Point Isabelle MI and Eagle River to 
  Manitou Island MI.

* WHEN...Until 8 AM EDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ246-061000-
/O.CON.KMQT.SC.Y.0031.000000T0000Z-210406T1000Z/
Point Isabelle to Lower Entrance of Portage Canal MI-
419 AM EDT Tue Apr 6 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY
THIS MORNING...

* WHAT...Southeast winds 10 to 20 kt and waves 2 to 5 ft 
  occurring.

* WHERE...Point Isabelle to Lower Entrance of Portage Canal MI.

* WHEN...Until 6 AM EDT early this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ248-249-061000-
/O.CON.KMQT.SC.Y.0031.000000T0000Z-210406T1000Z/
Huron Islands to Marquette MI-Marquette to Munising MI-
419 AM EDT Tue Apr 6 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY
THIS MORNING...

* WHAT...Gusts to 25 knots possible.

* WHERE...Marquette to Munising MI and Huron Islands to 
  Marquette MI.

* WHEN...Until 6 AM EDT early this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LSZ250-251-061200-
/O.CON.KMQT.SC.Y.0030.000000T0000Z-210406T1200Z/
Munising to Grand Marais MI-Grand Marais to Whitefish Point MI-
419 AM EDT Tue Apr 6 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS
MORNING...

* WHAT...South to southeast winds 15 to 20 kt with gusts up to 25
  kt occurring.

* WHERE...Munising to Grand Marais MI and Grand Marais to 
  Whitefish Point MI.

* WHEN...Until 8 AM EDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

TAP

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 Marquette, MI wrote its last area forecast discussion before this small craft advisory went out at Apr 4, 8:06 PM EDT, 1 hour 36 minutes earlier.

Area forecast discussion, Apr 4, 8:06 PM EDT, 1 hour 36 minutes before
Area Forecast Discussion
National Weather Service Marquette MI
806 PM EDT Sun Apr 4 2021

.SHORT TERM...(This evening through Monday)
Issued at 345 PM EDT SUN APR 4 2021

Across the forecast area today, mid to high level clouds have
persisted with a layer of dry air within the lower 10k feet. This
dry layer has allowed a lot of the moisture associated with these
WAA/isentropically forced clouds to evaporate before reaching the
ground. Despite the cloud cover, this WAA and southeasterly flow has
allowed temps in the west to burst into the 60s. RTMA ob analysis
has much of the west in the 60s and some parts of Ontonagon and
southern Houghton counties in the mid-upper 60s. With the same flow
off Lake Michigan into the east, more moderated temps have been
observed, albeit still higher then most of the guidance suggested.
There, temps have largely topped out in the 50s with some 60s
observed in the interior and along the Lake Superior shoreline. The
aforementioned dry layer and dinural mixing has allowed dewpoints to
remain in the 20s across the region. With the temps climbing as high
as they have in the west, RH values in the west and parts of the
east have fallen to near 20%.

For the remainder of the afternoon, expecting the trend to continue,
with some additional warming of a degree or two and subsequent
lowering of RH values being possible. Upstream, the trough
responsible for the WAA/isentropic ascent will shift eastward into
the region this evening. The same forcings will persist through the
night, as will the drier low levels of the atmosphere. However,
guidance is pinging on 1-200 j/kg of elevated MUCAPE, which could
support a shower or two overcoming the dry air in the central, south
and east by morning. I maintained the dry forecast though given the
probability of this happening is low. Overnight lows will be mild,
with mid-upper 30s in the central and near 40 in the east and far
west.

Tomorrow, synoptically, the trough will continue eastward over the
region. With the core of the weak isentropic forcing shifting
eastward as well, any showers that does develop tonight could move
into the east during the morning hours. For a while, guidance was
pinging on a better precip signal tomorrow morning in the east, but
have since dialed it back. Given this, continued the trend of
maintaining a dry forecast. Daytime highs should climb into the 50s.

The west will be dry and warm. Model certainty pegged much of
southern Houghton and the interior portions of Gogebic and Ontonagon
counties with greater than 80% probability of exceeding 70 degrees.
At the same time, model soundings show steepening lapse rates
through day, which again should allow for gusty winds near 15 to 20
mph to mix down to the surface. While they also suggest the mid-
levels gradually moistening through the day in the central and east,
the mixing and lingering dry low level air in the west should again
lower RH values in parts of the far west to near 25%. By the late
afternoon, destabilization of the atmosphere is expected and a shower
or perhaps a thunderstorm can't be ruled out near the western WI/MI
stateline. I should note though that guidance has trended backwards
in regards to timing and its possible the forecast area may avoid
convective shower activity through 0z tomorrow evening. If something
does develop though, elevated MUCAPE values of around 1000j/kg with
weak shear likely wouldn't support much in the way of healthy
thunderstorm organization in our forecast area.

.LONG TERM...(Monday night through Sunday)
Issued at 321 PM EDT SUN APR 4 2021

Models now appear to be trending toward a more active weather
pattern through much of the extended with opportunities for much
needed rainfall across the area.

Beginning Mon night into early Tue, a shortwave moving from northern
Manitoba towards Hudson Bay will propel a cold front into Upper Mi
late Mon night into Tue morning. Model soundings show some increase
in elevated instability into the western and perhaps south central
fcst area to around 1000 j/kg which could support some thunderstorm
activity in these areas into the evening hours ahead of the
approaching frontal boundary and at nose of 30 kt LLJ. Most models
(with the exception of the NAM) have instability waning and thus the
threat of t-storms diminishing overnight Mon night into early Tue
for the rest of cwa ahead of the advancing frontal boundary. While
soundings show nice veering profiles and curved hodographs into this
area, effective shear is somewhat weak, generally 25-30 knots, so
not really expecting any stronger storms to support large hail into
the west. PWATs rising to around 1.00 inch and modest 850 mb
transport should support some rainfall across the rest of the cwa
late Mon night into early Tue with the passage of the cold front,
but the question is how much? Best dynamics/forcing along the front
is well north of Lake Superior into far northern Ontario. GFS
ensembles and SREF plumes indicate qpf of maybe .25 to .5 inch west
tapering to .1 to .25 of an inch central and east.

Behind this front, expect some clearing Tuesday afternoon west and
central before some light rainfall returns Wednesday to mainly the
west half as a low begins to emerge from the Central Plains. Models
indicate that the low should lift ne into the Upper MS Valley and
Upper Great Lakes region by the end of the work week as it weakens.
The GFS and the ECMWF models then show the low continuing to persist
over the Upper Great Lakes through next weekend. Gulf moisture being
drawn northward ahead of the low with PWAT values rising to 1.00-
1.25 inches by late Wed into Thu will result in increasing chances
of much needed soaking rainfall across the area. Rain showers will
gradually diminish in coverage by late week (Fri into the weekend)
as the low continues to weaken over the area and the best tap of
Gulf of Mexico moisture gets shunted east.
&&

.AVIATION...(For the 00Z TAFS through 00Z Monday evening)
Issued at 805 PM EDT SUN APR 4 2021

Dry air at the lower levels will maintain VFR conditions at
KIWD/KCMX/KSAW through the forecast period with only mid clouds
moving through the area. Light winds tonight will increase from the
south to southeast Monday and become gusty during the afternoon.
&&

.MARINE...(For the 4 PM Lake Superior forecast issuance)
Issued at 345 PM EDT SUN APR 4 2021

High pressure will exit east toward James Bay this afternoon and
tonight as a low pressure trough approaches the Upper Mississippi
Valley. The result will be increasing easterly winds tonight to 20-
25 knots over the north-central and west early. While the winds
settle down to near 15-20 knots in the west overnight, winds will
increase across the remainder of the north and parts of the eastern
lake by Monday morning to near 30 knots. A trough will move into the
western parts of the lake by Monday night, supporting northeasterly
winds to around 25 knots by Monday afternoon. Over the northeast
third of Lake Superior, southeasterly winds to near 30 knots with
some gale force gusts to 35 knots will be possible into Tuesday
morning.

On Tuesday, winds should fall to 20 knots or lower across the lake
as the aforementioned trough moves through the lake and high
pressure builds in from the west. Upstream, a system is expected to
develop in the Central Plains Tuesday night and start tracking
toward the Upper Great Lakes. This will result in east to northeast
winds increasing back to 20 to 30 knots Wednesday and Thursday,
beginning first over western third of Lake Superior during the day
Wednesday.
&&

.MQT WATCHES/WARNINGS/ADVISORIES...
Upper Michigan...
None.
Lake Superior...
None.
Lake Michigan...
None.
&&

SHORT TERM...JP
LONG TERM...Voss
AVIATION...JLB
MARINE...JP
Hazardous weather outlook, Apr 4, 6:25 AM EDT, 15 hours 17 minutes before
Hazardous Weather Outlook
National Weather Service Marquette MI
625 AM EDT Sun Apr 4 2021

MIZ002>006-009>013-084-051200-
Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Gogebic-Iron-
Dickinson-Menominee-Delta-Southern Houghton-
625 AM EDT Sun Apr 4 2021 /525 AM CDT Sun Apr 4 2021/

This Hazardous Weather Outlook is for portions of western Upper
Michigan and central Upper Michigan.

.DAY ONE...Today and Tonight

Wildfire potential will be elevated today due to warm,
dry conditions and gusty winds. See the latest Special Weather
Statement for more details.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a slight chance of thunderstorms over western Upper
Michigan late Monday afternoon and early Monday night.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

MIZ001-007-014-085-051200-
Keweenaw-Luce-Southern Schoolcraft-Northern Schoolcraft-
625 AM EDT Sun Apr 4 2021

This Hazardous Weather Outlook is for portions of western Upper
Michigan and central Upper Michigan.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

LSZ162-240>251-263>267-051200-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
625 AM EDT Sun Apr 4 2021 /525 AM CDT Sun Apr 4 2021/

This Hazardous Weather Outlook is for portions of Eastern Lake
Superior...Central Lake Superior and Western Lake Superior.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

A few gale force gusts up to 35 knots are possible over the north
central and eastern lake late Monday and Monday night.

There is a slight chance of thunderstorms over the western half of
the lake late Monday afternoon and early Monday night.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

LMZ221-248-250-051200-
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
625 AM EDT Sun Apr 4 2021

This Hazardous Weather Outlook is for portions of Northern Lake
Michigan.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

The need for weather spotter reports is not anticipated at this
time.

TAP

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.