Alert archive / Wisconsin / Small Craft Advisories in 2018

Small Craft Advisory 21, NWS Milwaukee, WI

February 21, 2018

NWS Milwaukee, WI issued this small craft advisory at Feb 21, 2018, 2:35 PM CST. It took effect at Feb 22, 2018, 3:00 PM CST. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Feb 21, 2018, 2:35 PM CST (20:35 UTC)
In effect from
Feb 22, 2018, 3:00 PM CST
Expired
Feb 23, 2018, 8:00 AM CST
In force
17 hr
Issued by
NWS Milwaukee, WI

The text

As transmitted.

823 
WHUS73 KMKX 212035
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
235 PM CST Wed Feb 21 2018

...Increasing Winds and Waves Expected Thursday afternoon and
Night...

.A tightening pressure gradient between departing high pressure
and developing Plains low pressure will cause increasing east to
northeast winds Thursday afternoon and night. Wave heights will
build to over 4 feet in some areas by late Thursday afternoon, and
as high as 7 feet Thursday night. Wind gusts to 25 knots are
expected Thursday night as well. 

LMZ645-646-220445-
/O.NEW.KMKX.SC.Y.0021.180222T2100Z-180223T1400Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
235 PM CST Wed Feb 21 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM THURSDAY TO 8 AM CST
FRIDAY...

The National Weather Service in Milwaukee/Sullivan has issued a
Small Craft Advisory...which is in effect from 3 PM Thursday to
8 AM CST Friday. 

* WINDS: Northwest winds 5 to 15 knots becoming east to northeast
  overnight and increasing to 15 to 25 knots late Thursday and
  Thursday night. A few gusts to 30 knots are possible. 

* WAVES: 1 to 2 feet tonight building to 3 to 5 feet Thursday
  afternoon and 4 to 7 feet Thursday night. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

LMZ643-644-220445-
/O.NEW.KMKX.SC.Y.0021.180223T0000Z-180223T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
235 PM CST Wed Feb 21 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THURSDAY TO 8 AM CST
FRIDAY...

The National Weather Service in Milwaukee/Sullivan has issued a
Small Craft Advisory...which is in effect from 6 PM Thursday to
8 AM CST Friday. 

* WINDS: Northwest winds 5 to 15 knots becoming east to northeast
  overnight and increasing to 15 to 25 knots late Thursday and
  Thursday night. A few gusts to 30 knots are possible. 

* WAVES: 1 to 2 feet tonight building to 3 to 5 feet Thursday
  afternoon and 4 to 7 feet Thursday night. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$
MBK

www.weather.gov/mkx
6 follow-up statements
323 
WHUS73 KMKX 220235
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
835 PM CST Wed Feb 21 2018

...Increasing Winds and Waves Expected Thursday Afternoon and
Night...

.A tightening pressure gradient between departing high pressure
and developing Plains low pressure will cause increasing east to
northeast winds Thursday afternoon and night. Wave heights will
build to over 4 feet in some areas by late Thursday afternoon,
and as high as 7 feet Thursday night. Wind gusts to 25 knots are
expected Thursday night as well.

LMZ645-646-221200-
/O.CON.KMKX.SC.Y.0021.180222T2100Z-180223T1400Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
835 PM CST Wed Feb 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THURSDAY TO
8 AM CST FRIDAY...

* WINDS: Northwest winds 5 to 15 knots becoming east to 
  northeast overnight and increasing to 15 to 25 knots late 
  Thursday and Thursday night. A few gusts to 30 knots are 
  possible. 

* WAVES: 1 to 2 feet tonight building to 3 to 5 feet Thursday 
  afternoon and 4 to 7 feet Thursday night. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

LMZ643-644-221200-
/O.CON.KMKX.SC.Y.0021.180223T0000Z-180223T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
835 PM CST Wed Feb 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THURSDAY TO
8 AM CST FRIDAY...

* WINDS: Northwest winds 5 to 15 knots becoming east to 
  northeast overnight and increasing to 15 to 25 knots late 
  Thursday and Thursday night. A few gusts to 30 knots are 
  possible. 

* WAVES: 1 to 2 feet tonight building to 3 to 5 feet Thursday 
  afternoon and 4 to 7 feet Thursday night. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$


www.weather.gov/mkx
810 
WHUS73 KMKX 220910
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
310 AM CST Thu Feb 22 2018

...Increasing Winds and Waves Expected This Afternoon and Tonight...

.A tightening pressure gradient between departing high pressure
and approaching low pressure will cause increasing northeast to 
east winds this afternoon and night. Wave heights will build to 
over 4 feet in some areas by late afternoon, and as high as 7 
feet Thursday night. Wind gusts to 25 knots are expected Thursday 
night as well.

LMZ645-646-221715-
/O.CON.KMKX.SC.Y.0021.180222T2100Z-180223T1400Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
310 AM CST Thu Feb 22 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 8 AM CST FRIDAY...

* WINDS: Northeast winds 10 to 15 knots becoming east and
  increasing to 15 to 25 knots tonight. 
 
* WAVES: 2 to 4 feet tonight building to 3 to 5 feet late afternoon
  and 4 to 7 feet Thursday night. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

LMZ643-644-221715-
/O.CON.KMKX.SC.Y.0021.180223T0000Z-180223T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
310 AM CST Thu Feb 22 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 8 AM CST FRIDAY...

* WINDS: Northeast winds 10 to 15 knots becoming east and
  increasing to 15 to 25 knots tonight. 
 
* WAVES: 2 to 4 feet tonight building to 3 to 5 feet late afternoon
  and 4 to 7 feet Thursday night. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$
Hentz

www.weather.gov/mkx
088 
WHUS73 KMKX 221519
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
919 AM CST Thu Feb 22 2018

...Increasing Winds and Waves Expected This Afternoon and
Tonight...

.Increasing northeast to east winds this afternoon and tonight. 
Wave heights will build to over 4 feet in some areas by late 
afternoon, and as high as 7 feet tonight. Wind gusts to 25 knots 
are expected Thursday night as well.

LMZ645-646-222330-
/O.CON.KMKX.SC.Y.0021.180222T2100Z-180223T1400Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
919 AM CST Thu Feb 22 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 8 AM CST FRIDAY...

* WINDS: Northeast winds 10 to 15 knots becoming east and 
  increasing to 15 to 25 knots tonight. 

* WAVES: 2 to 4 feet tonight building to 3 to 5 feet late 
  afternoon and 4 to 7 feet Thursday night. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

LMZ643-644-222330-
/O.CON.KMKX.SC.Y.0021.180223T0000Z-180223T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
919 AM CST Thu Feb 22 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 8 AM CST FRIDAY...

* WINDS: Northeast winds 10 to 15 knots becoming east and 
  increasing to 15 to 25 knots tonight. 

* WAVES: 2 to 4 feet tonight building to 3 to 5 feet late 
  afternoon and 4 to 7 feet Thursday night. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$


www.weather.gov/mkx
214 
WHUS73 KMKX 222114
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
314 PM CST Thu Feb 22 2018

...Increasing Winds and Waves Expected This Afternoon and
Tonight...

.Increasing easterly winds this afternoon and tonight, shifting to
southerly overnight. Wave heights will build to over 4 feet in 
some areas by late afternoon, and as high as 7 feet tonight. Wind 
gusts to 25 knots are expected Thursday night as well.

LMZ645-646-230515-
/O.CON.KMKX.SC.Y.0021.000000T0000Z-180223T1400Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
314 PM CST Thu Feb 22 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST FRIDAY...

* WINDS: Northeast winds 10 to 15 knots becoming east and 
  increasing to 15 to 25 knots tonight. 

* WAVES: 2 to 4 feet early this evening, building to 4 to 6 feet 
  late this evening and overnight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

LMZ643-644-230515-
/O.CON.KMKX.SC.Y.0021.180223T0000Z-180223T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
314 PM CST Thu Feb 22 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST FRIDAY...

* WINDS: Northeast winds 10 to 15 knots becoming east and 
  increasing to 15 to 25 knots tonight. 

* WAVES: 2 to 4 feet early this evening, building to 4 to 7 feet 
  late this evening and overnight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$


www.weather.gov/mkx
073 
WHUS73 KMKX 230220
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
820 PM CST Thu Feb 22 2018

...Gusty Winds and High Waves Continue Overnight...

LMZ645-646-231200-
/O.CON.KMKX.SC.Y.0021.000000T0000Z-180223T1400Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
820 PM CST Thu Feb 22 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST FRIDAY...

* WINDS: Northeast winds 15 to 25 knots tonight. 

* WAVES: Building to 4 to 6 feet late this evening and overnight.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

LMZ643-644-231200-
/O.CON.KMKX.SC.Y.0021.000000T0000Z-180223T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
820 PM CST Thu Feb 22 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST FRIDAY...

* WINDS: Northeast winds 10 to 15 knots becoming east and 
  increasing to 15 to 25 knots tonight. 

* WAVES: Building to 4 to 7 feet late this evening and overnight.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$


www.weather.gov/mkx
631 
WHUS73 KMKX 230912
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
312 AM CST Fri Feb 23 2018

...Winds and Waves diminishing. Then Gales possible this Weekend...

LMZ645-646-231715-
/O.CON.KMKX.SC.Y.0021.000000T0000Z-180223T1400Z/
/O.NEW.KMKX.GL.A.0001.180225T0000Z-180226T0900Z/
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
312 AM CST Fri Feb 23 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST THIS
MORNING...
...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

The National Weather Service in Milwaukee/Sullivan has issued a
Gale Watch...which is in effect from Saturday evening through
late Sunday night. 

* WINDS: south 15 to 20 knots early this morning, then southwest
  10 to 20 knots later this morning. Then Saturday night East wind
  15 to 25 knots with gusts to around 30 knots veering southwest
  with gusts to around 40 knots early Sunday morning.

* WAVES: 4 to 6 feet early this morning, diminishing to 2 to 4 
  feet later this morning. Waves Saturday night rising to 6 to 8 
  feet.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

LMZ643-644-231715-
/O.CON.KMKX.SC.Y.0021.000000T0000Z-180223T1400Z/
/O.NEW.KMKX.GL.A.0001.180225T0000Z-180226T0900Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
312 AM CST Fri Feb 23 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST THIS
MORNING...
...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE SUNDAY
NIGHT...

The National Weather Service in Milwaukee/Sullivan has issued a
Gale Watch...which is in effect from Saturday evening through
late Sunday night. 

* WINDS: south 15 to 20 knots early this morning, then southwest
  10 to 20 knots later this morning. Then Saturday night East wind
  15 to 25 knots with gusts to around 30 knots veering southwest
  with gusts to around 40 knots early Sunday morning.

* WAVES: 4 to 6 feet early this morning, diminishing to 2 to 4 
  feet later this morning. Waves Saturday night rising to 6 to 8 
  feet.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$
Hentz

www.weather.gov/mkx

The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 20, 8:06 PM CSTRiver Flood WarningMKXSheboygan43 hr
Feb 20, 8:09 PM CSTRiver Flood WarningMKXJefferson25 hr
Feb 20, 11:44 PM CSTRiver Flood WarningMKXOzaukee4 days
Feb 20, 11:45 PM CSTRiver Flood WarningMKXGreen40 hr
Feb 21, 4:40 PM CSTRiver Flood WarningMKXOzaukee45 hr

Nearby

Small Craft Advisories in Wisconsin, 2018Every small craft advisory in 2018

Sources

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