Alert archive / Wisconsin / Gale Watches in 2021
Gale Watch 14, NWS Milwaukee, WI
NWS Milwaukee, WI issued this gale watch at Sep 21, 2021, 3:04 AM CDT. It took effect at Sep 22, 2021, 3:00 AM CDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Sep 21, 2021, 3:04 AM CDT (08:04 UTC)
- In effect from
- Sep 22, 2021, 3:00 AM CDT
- Expired
- Sep 21, 2021, 1:48 PM CDT
- In force
- Issued by
- NWS Milwaukee, WI
The text
As transmitted.
880 WHUS73 KMKX 210804 MWWMKX URGENT - MARINE WEATHER MESSAGE National Weather Service Milwaukee/Sullivan WI 304 AM CDT Tue Sep 21 2021 LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876- 878-211615- /O.CON.KMKX.GL.W.0018.000000T0000Z-210921T1200Z/ /O.NEW.KMKX.GL.A.0014.210922T0800Z-210923T1200Z/ Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-line of lake.- Lake Michigan from Point Betsie to Manistee MI 5NM offshore to Mid Lake- Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor to Michigan City in 5NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5NM offshore to Mid lake- Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake- 304 AM CDT Tue Sep 21 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING... ...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY MORNING... * WHAT...For the Gale Warning, southwest winds 20 to 25 kt with gusts up to 40 kt and waves 6 to 11 ft. For the Gale Watch, north winds 20 to 30 kt with gusts up to 35 kt and waves 9 to 14 ft possible. * WHERE...Southern Two Thirds of the Open Waters of Lake Michigan. * WHEN...For the Gale Warning, until 7 AM CDT this morning. For the Gale Watch, from late tonight through Thursday morning. * 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. && $$ LMZ261-362-364-563-211200- /O.CON.KMKX.GL.W.0018.000000T0000Z-210921T1200Z/ Lake Michigan from Seul Choix Point to Rock Island Passage 5NM offshore to Mid Lake- Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and North of a line from Charlevoix MI to South Fox Island 5NM offshore- Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to mid lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM offshore to mid lake- 304 AM CDT Tue Sep 21 2021 ...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...Southwest winds 20 to 25 kt with gusts up to 35 kt and waves 6 to 11 ft. * WHERE...Northern Third of the Open Waters of Lake Michigan. * WHEN...Until 7 AM CDT this morning. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. && $$ LMZ643>646-211615- /O.CON.KMKX.SC.Y.0072.000000T0000Z-210921T1800Z/ /O.NEW.KMKX.GL.A.0014.210922T1200Z-210923T0000Z/ Sheboygan to Port Washington WI- Port Washington to North Point Light WI- North Point Light to Wind Point WI- Wind Point WI to Winthrop Harbor IL- 304 AM CDT Tue Sep 21 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... ...GALE WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING... * WHAT...For the Small Craft Advisory, west winds 15 to 20 kt with gusts up to 25 kt and waves 3 to 6 ft. For the Gale Watch, north winds 20 to 25 kt with gusts up to 35 kt and waves 6 to 9 ft possible. * WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL. * WHEN...For the Small Craft Advisory, until 1 PM CDT this afternoon. For the Gale Watch, from Wednesday morning through Wednesday evening. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. * ADDITIONAL DETAILS...Another Small Craft Advisory will be needed tonight as winds build from the north again. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$
3 follow-up statements
288 WHUS73 KMKX 211053 MWWMKX URGENT - MARINE WEATHER MESSAGE National Weather Service Milwaukee/Sullivan WI 553 AM CDT Tue Sep 21 2021 LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876- 878-211900- /O.CAN.KMKX.GL.W.0018.000000T0000Z-210921T1200Z/ /O.CON.KMKX.GL.A.0014.210922T0800Z-210923T1200Z/ Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-line of lake.- Lake Michigan from Point Betsie to Manistee MI 5NM offshore to Mid Lake- Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor to Michigan City in 5NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5NM offshore to Mid lake- Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake- 553 AM CDT Tue Sep 21 2021 ...GALE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY MORNING... ...GALE WARNING IS CANCELLED... * WHAT...North winds 20 to 30 kt with gusts up to 35 kt and waves 9 to 14 ft possible. * WHERE...Southern Two Thirds of the Open Waters of Lake Michigan. * WHEN...From late tonight through Thursday morning. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LMZ261-362-364-563-211200- /O.CAN.KMKX.GL.W.0018.000000T0000Z-210921T1200Z/ Lake Michigan from Seul Choix Point to Rock Island Passage 5NM offshore to Mid Lake- Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and North of a line from Charlevoix MI to South Fox Island 5NM offshore- Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to mid lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM offshore to mid lake- 553 AM CDT Tue Sep 21 2021 ...GALE WARNING IS CANCELLED... Winds have weakened below gale levels and are expected to continue to weaken this morning to around 20-25 kt. $$ LMZ643>646-211900- /O.CON.KMKX.SC.Y.0072.000000T0000Z-210921T1800Z/ /O.CON.KMKX.GL.A.0014.210922T1200Z-210923T0000Z/ Sheboygan to Port Washington WI- Port Washington to North Point Light WI- North Point Light to Wind Point WI- Wind Point WI to Winthrop Harbor IL- 553 AM CDT Tue Sep 21 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... ...GALE WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING... * WHAT...For the Small Craft Advisory, waves 2 to 5 ft and a few northwest gusts this morning up to 25 kt. For the Gale Watch, north winds 20 to 25 kt with gusts up to 35 kt and waves 6 to 9 ft possible. * WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL. * WHEN...For the Small Craft Advisory, until 1 PM CDT this afternoon. For the Gale Watch, from Wednesday morning through Wednesday evening. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$
028 WHUS73 KMKX 211344 MWWMKX URGENT - MARINE WEATHER MESSAGE National Weather Service Milwaukee/Sullivan WI 844 AM CDT Tue Sep 21 2021 LMZ643>646-212145- /O.CON.KMKX.SC.Y.0072.000000T0000Z-210921T1800Z/ /O.CON.KMKX.GL.A.0014.210922T1200Z-210923T0000Z/ Sheboygan to Port Washington WI- Port Washington to North Point Light WI- North Point Light to Wind Point WI- Wind Point WI to Winthrop Harbor IL- 844 AM CDT Tue Sep 21 2021 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... ...GALE WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING... * WHAT...For the Small Craft Advisory, waves 2 to 5 ft and a few northwest gusts this morning up to 25 kt. For the Gale Watch, north winds 20 to 25 kt with gusts up to 35 kt and waves 6 to 9 ft possible. * WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL. * WHEN...For the Small Craft Advisory, until 1 PM CDT this afternoon. For the Gale Watch, from Wednesday morning through Wednesday evening. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$ LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876- 878-212145- /O.CON.KMKX.GL.A.0014.210922T0800Z-210923T1200Z/ Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-line of lake.- Lake Michigan from Point Betsie to Manistee MI 5NM offshore to Mid Lake- Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor to Michigan City in 5NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5NM offshore to Mid lake- Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake- 844 AM CDT Tue Sep 21 2021 ...GALE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY MORNING... * WHAT...North winds 20 to 30 kt with gusts up to 35 kt and waves 9 to 14 ft possible. * WHERE...Southern Two Thirds of the Open Waters of Lake Michigan. * WHEN...From late tonight through Thursday morning. * IMPACTS...Strong winds can cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and waves. && $$
689 WHUS73 KMKX 211848 MWWMKX URGENT - MARINE WEATHER MESSAGE National Weather Service Milwaukee/Sullivan WI 148 PM CDT Tue Sep 21 2021 LMZ643>646-220300- /O.NEW.KMKX.SC.Y.0073.210922T0200Z-210922T1200Z/ /O.UPG.KMKX.GL.A.0014.210922T1200Z-210923T0000Z/ /O.NEW.KMKX.GL.W.0019.210922T1200Z-210922T2100Z/ Sheboygan to Port Washington WI- Port Washington to North Point Light WI- North Point Light to Wind Point WI- Wind Point WI to Winthrop Harbor IL- 148 PM CDT Tue Sep 21 2021 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 7 AM CDT WEDNESDAY... ...GALE WARNING IN EFFECT FROM 7 AM TO 4 PM CDT WEDNESDAY... * WHAT...For the Gale Warning, north winds 20 to 25 kt with gusts up to 35 kt and waves 6 to 9 ft expected. For the Small Craft Advisory, north winds 15 to 20 kt with gusts up to 30 kt and waves 4 to 7 ft expected. * WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL. * WHEN...For the Gale Warning, from 7 AM to 4 PM CDT Wednesday. For the Small Craft Advisory, from 9 PM this evening to 7 AM CDT Wednesday. * 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. && $$ LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876- 878-220300- /O.UPG.KMKX.GL.A.0014.210922T0800Z-210923T1200Z/ /O.NEW.KMKX.GL.W.0019.210922T1200Z-210923T1200Z/ Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-line of lake.- Lake Michigan from Point Betsie to Manistee MI 5NM offshore to Mid Lake- Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor to Michigan City in 5NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5NM offshore to Mid lake- Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake- 148 PM CDT Tue Sep 21 2021 ...GALE WARNING IN EFFECT FROM 7 AM WEDNESDAY TO 7 AM CDT THURSDAY... * WHAT...North winds 25 to 30 kt with gusts up to 35 kt and waves 9 to 14 ft expected. * WHERE...Southern Two Thirds of the Open Waters of Lake Michigan. * WHEN...From 7 AM Wednesday to 7 AM CDT 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. && $$
What forecasters said that day
The local office's own words before this gale watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Milwaukee, WI wrote its last area forecast discussion before this gale watch went out at Sep 20, 10:29 PM CDT, 4 hours 35 minutes earlier.
Area forecast discussion, Sep 20, 10:29 PM CDT, 4 hours 35 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Milwaukee/Sullivan WI
1029 PM CDT Mon Sep 20 2021
.UPDATE...
(Issued 1029 PM CDT Mon Sep 20 2021)
Still watching a few stronger cells within the main line of
storms moving through the area, ahead of the advancing cold front.
Some potential for damaging winds with these cells, and a small
QLCS tornado risk with 0-3 km line normal shear vectors from the
southwest at 25 to 35 knots. Have not received much in the way of
verification for damaging winds with these storms so far, and the
overall trend with the convection may slowly be weakening as low
level CAPE is lost. Will continue to watch these storms as they
shift across the rest of the area into the overnight hours.
The showers and storms will exit the eastern parts of the area
toward daybreak, with gusty south winds shifting to the northwest
and bringing cooler air into the region into Tuesday. Low clouds
should linger into Tuesday morning, before gradually scattering
out from west to east by later in the day. Temperatures will only
reach the middle 60s for highs, with the gusty northwest winds
making it feel more like autumn.
Wood
&&
.SHORT TERM...
(Issued 240 PM CDT Mon Sep 20 2021)
Tonight and Tuesday:
Showers are ending across the area this afternoon as the mid level
wave and PWAT max associated with the remnants of Nicholas move
off to the northeast. Clouds are starting to scatter out across
the area, and most of the region should see a few peeks of sun
late this afternoon into this evening.
Further west, a line of thunderstorms is taking shape across
Minnesota and Iowa along an advancing cold front. Widespread
clouds have limited instability ahead of this line, but strong
lift and shear are helping to compensate. This line will advance
east, reaching the western edge of the forecast area this
evening-- likely between about 8 and 9 PM. It should clear the
area in the 2-4 AM timeframe.
Some strong/severe storms are expected with this line, with the
higher threat across the western half of the area, where the
thermodynamic environment will be comparatively more favorable.
Strong wind gusts will be the primary concern, but we will need to
watch for a QLCS tornado threat with any line segments that surge
to the northeast.
Rain is expected to end by sunrise tomorrow, with clouds
scattering out through the morning. Tomorrow will be cool and
blustery, with northwest winds gusting between 20 and 30 MPH.
Highs will be in the mid 60s.
Boxell
&&
.LONG TERM...
(Issued 240 PM CDT Mon Sep 20 2021)
Tuesday night through Monday:
With the front coming through Tuesday, high pressure will be
filling in behind it Tuesday evening/night. A few of the shorter
term models are indicating potential for a few showers on the back
end of the system Tuesday night given some frontogenesis and some
low level moisture but it is expected that with dry mid levels
and limited overall forcing that directly behind the front should
remain mostly dry.
Into the day Wednesday the upper level low and surface low will
be off to the east but models start to diverge quite a bit as the
upper level low becomes a closed system. The differences between
models seems to primarily come from the timing of when the system
becomes closed, which greatly affects the progression of the upper
level low. The GFS and NAM generally close the system off toward
Wednesday evening while the ECMWF and Canadian closes the system
off Wednesday morning. This drastically impacts the progression of
the surface low and while Wednesday looks mostly dry, Thursday
looks far more uncertain. The GFS and NAM keep the surface low to
the east given the later transition into a closed low while the
ECMWF and Canadian actually have the surface low retracting a bit
to the west, sneaking decent chances for precipitation into the
eastern half of the CWA. The uncertainty here is fairly high at
the moment given the uncertainty of the upper level low but
generally an earlier transition of the upper level low into a
closed low will give us better chances for precipitation Thursday.
We will continue to watch the new models as we get closer to
midweek. It is also important to note that Wednesday and Thursday
look to be fairly chilly with a much cooler air mass pushing in
behind the front. Highs may peak out in the low to mid 60s with
lows in the 40s and possibly 30s Thursday morning.
Thursday night that system should finally push out of the area,
however another upper low will be coming in right behind it for
Friday. The uncertainty in the system is very high as models
suggest it too could become a closed and potentially interact with
the previous low with a bit of a Fujiwara effect. With this system
we will see another front push through that may bring some precip,
though models suggest that dry air may inhibit much of what can
come out of the next system. Fortunately the dry air looks likely
to prevent much of any precip the rest of the weekend despite the
closed low potentially sticking around through Sunday before
pushing out. Complete divergence in models thereafter though they
all seem to keep the region dry. With these systems however we
will remain rather chilly through the weekend.
Kuroski
&&
.AVIATION...
(Issued 1029 PM CDT Mon Sep 20 2021)
Line of storms will continue to shift east across area terminals
overnight, exiting the eastern parts of the area toward daybreak.
May see gusty winds with the storms, with ceilings and visibility
values dropping to MVFR/IFR levels at times. South winds ahead of
the cold front will shift to the northwest behind it by daybreak,
remaining gusty through Tuesday before weakening Tuesday night.
Low clouds with MVFR/IFR ceilings should move into the area
behind the showers and storms overnight and linger into Tuesday
morning, before gradually scattering out from west to east by
later in the day.
Wood
&&
.MARINE...
(Issued 1029 PM CDT Mon Sep 20 2021)
Gusty south winds will gust to around 40 knots at times overnight
over the open waters of Lake Michigan, before the cold front
moves through and winds veer to the northwest by daybreak Tuesday
morning. Waves will remain elevated during this time. The Gale
Warning remains in effect until 7 AM CDT Tuesday morning for all
of the open waters of Lake Michigan.
Northwest winds Tuesday will remain below gale force, becoming
north Tuesday night into Wednesday night. There is some
uncertainty with how gusty the winds will be during this period,
so keep up with the forecast. Some gales could occur Wednesday
afternoon, but confidence is low at this time.
A Small Craft Advisory continues until 1 PM CDT Tuesday afternoon
for the nearshore waters of Lake Michigan, as gusty south winds
to 30 knots and elevated waves linger until the cold front moves
through toward daybreak Tuesday morning. Winds will veer northwest
and remain gusty to 25 knots at times Tuesday morning, before
weakening Tuesday afternoon.
Winds and waves may reach Small Craft Advisory levels at times
Tuesday night into Thursday, though uncertainty remains with how
strong and how long these winds may linger. Keep up with the
forecast for this period.
Wood
&&
.BEACHES...
(Issued 1029 PM CDT Mon Sep 20 2021)
The Beach Hazards Statement continues until 7 AM CDT Tuesday
morning for all Lake Michigan beaches from Sheboygan to Kenosha
Counties. Gusty south to southwest winds will linger overnight,
before shifting northwest by daybreak Tuesday morning. These winds
will drive onshore waves between 3 to 6 feet along the Lake
Michigan shoreline, with 6 to 8 foot waves along the shorelines in
Sheboygan and Ozaukee Counties. The offshore winds Tuesday will
push the higher waves out over the open waters of the lake.
These conditions will be dangerous for swimmers overnight, as the
unsettled waters will likely cause rip currents along open
shorelines, and dangerous currents along piers and breakwalls.
Swimming in Lake Michigan is not advised during this time period.
Wood
&&
.MKX WATCHES/WARNINGS/ADVISORIES...
WI...Beach Hazards Statement...WIZ052-WIZ060-WIZ066-WIZ071-WIZ072
until 7 AM Tuesday.
LM...Gale Warning...LMZ080-LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565-
LMZ567-LMZ669-LMZ671-LMZ673-LMZ675-LMZ777-LMZ779-LMZ868-
LMZ870-LMZ872-LMZ874-LMZ876-LMZ878 until 7 AM Tuesday.
Small Craft Advisory...LMZ643-LMZ644-LMZ645-LMZ646 until 1 PM
Tuesday.
&&
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www.youtube.com/NWSMilwaukeeHazardous weather outlook, Sep 20, 10:37 PM CDT, 4 hours 27 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Milwaukee/Sullivan WI 1037 PM CDT Mon Sep 20 2021 WIZ046-047-051-052-056>060-062>072-220345- Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge- Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee- Lafayette-Green-Rock-Walworth-Racine-Kenosha- 1037 PM CDT Mon Sep 20 2021 This Hazardous Weather Outlook is for portions of east central Wisconsin, south central Wisconsin and southeast Wisconsin. .DAY ONE...Rest of Tonight There is a high swim risk through the overnight hours. Life threatening waves and currents are expected. Stay out of the water, and stay away from dangerous areas like piers, breakwalls, and river outlets. A line of thunderstorms will continue to move through the area into the overnight hours, exiting to the east of the area toward daybreak. There will be a risk for a few strong to severe thunderstorms with this line. Gusty winds will be the main hazard, though a brief spin up tornado may be possible. .DAYS TWO THROUGH SEVEN...Tuesday through Monday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation should not be needed. LMZ643>646-220345- Sheboygan to Port Washington WI- Port Washington to North Point Light WI- North Point Light to Wind Point WI- Wind Point WI to Winthrop Harbor IL- 1037 PM CDT Mon Sep 20 2021 This Hazardous Weather Outlook is for the nearshore waters from Sheboygan Wisconsin to Winthrop Harbor Illinois. .DAY ONE...Rest of Tonight A Small Craft Advisory remains in effect, for gusty south to southwest winds and elevated waves. A line of thunderstorms will continue to move through the area into the overnight hours, exiting to the east toward daybreak. There will be a risk for a few strong to severe thunderstorms with this line. Gusty winds will be the main hazard. .DAYS TWO THROUGH SEVEN...Tuesday through Monday The Small Craft Advisory continues through Tuesday morning, as northwest winds remain gusty. Winds and waves may reach Small Craft Advisory levels at times Tuesday night into Thursday. LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-220345- Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-line of lake.- Lake Michigan from Seul Choix Point to Rock Island Passage 5NM offshore to Mid Lake- Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and North of a line from Charlevoix MI to South Fox Island 5NM offshore- Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to mid lake- Lake Michigan from Point Betsie to Manistee MI 5NM offshore to Mid Lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM offshore to mid lake- Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor to Michigan City in 5NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5NM offshore to Mid lake- Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake- 1037 PM CDT Mon Sep 20 2021 This Hazardous Weather Outlook is for the open waters of Lake Michigan. .DAY ONE...Rest of Tonight A Gale Warning remains in effect through the overnight hours, for south to southwest gales up to 40 knots. A line of thunderstorms will move through the area into the overnight hours. Gusty winds may occur with these storms. .DAYS TWO THROUGH SEVEN...Tuesday through Monday A period of north gales may occur Wednesday afternoon. Wood www.weather.gov/mkx
In the hours before
Special weather statement, Sep 20, 9:14 PM CDT, 5 hours 50 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
914 PM CDT Mon Sep 20 2021
WIZ067-210300-
Lafayette WI-
914 PM CDT Mon Sep 20 2021
...Strong thunderstorms will impact portions of Lafayette County
through 1000 PM CDT...
At 913 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Mineral Point to near Scales Mound.
Movement was east at 30 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Darlington, Shullsburg, Argyle, Blanchardville, Wiota, South Wayne,
Fayette, Lamont, Gratiot, Yellowstone Lake St Park, Calamine and
Woodford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4251 9027 4281 9024 4281 8984 4251 8984
TIME...MOT...LOC 0213Z 267DEG 28KT 4279 9017 4250 9020
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
GEHRINGSpecial weather statement, Sep 20, 9:44 PM CDT, 5 hours 20 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
944 PM CDT Mon Sep 20 2021
WIZ047-051-210330-
Green Lake WI-Fond Du Lac WI-
944 PM CDT Mon Sep 20 2021
...A strong thunderstorm will impact portions of southeastern Green
Lake and northwestern Fond du Lac Counties through 1030 PM CDT...
At 944 PM CDT, Doppler radar was tracking a strong thunderstorm near
Markesan, or 9 miles southwest of Ripon, moving northeast at 40 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Ripon, Markesan, Green Lake and West Rosendale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4390 8888 4390 8856 4389 8854 4369 8902
4381 8915 4393 8889
TIME...MOT...LOC 0244Z 237DEG 35KT 4377 8899
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
GEHRINGSpecial weather statement, Sep 20, 10:04 PM CDT, 5 hours before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
1004 PM CDT Mon Sep 20 2021
WIZ067-068-210345-
Green WI-Lafayette WI-
1004 PM CDT Mon Sep 20 2021
...A strong thunderstorm will impact portions of southeastern
Lafayette and Green Counties through 1045 PM CDT...
At 1003 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles south of Argyle, or 11 miles west of Monroe, moving northeast
at 50 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Monroe, Brodhead, Belleville, New Glarus, Brooklyn, Monticello,
Albany, Argyle, Wiota, Dayton, South Wayne, Browntown, Attica, Juda,
Jordan Center and Woodford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4264 9007 4286 8970 4286 8958 4285 8937
4263 8937 4253 8969 4251 8994
TIME...MOT...LOC 0303Z 235DEG 41KT 4259 8987
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
STUMPFSpecial weather statement, Sep 20, 10:27 PM CDT, 4 hours 37 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
1027 PM CDT Mon Sep 20 2021
WIZ063-064-210415-
Jefferson WI-Dane WI-
1027 PM CDT Mon Sep 20 2021
...A strong thunderstorm will impact portions of southeastern Dane
and Jefferson Counties through 1115 PM CDT...
At 1027 PM CDT, Doppler radar was tracking a strong thunderstorm over
Stoughton, moving northeast at 50 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Eastern Madison, Fitchburg, Watertown, Stoughton, Fort Atkinson,
Oregon, Jefferson, McFarland, Lake Mills, Edgerton, Marshall,
Waterloo, Cottage Grove, Johnson Creek, Deerfield, Cambridge,
Brooklyn, Lake Ripley, Lake Koshkonong and Ixonia.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4295 8945 4320 8900 4320 8854 4300 8854
4285 8903 4285 8936
TIME...MOT...LOC 0327Z 236DEG 44KT 4296 8921
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
STUMPFLocal storm report, Sep 20, 10:31 PM CDT, 4 hours 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1031 PM CDT MON SEP 20 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0945 PM TSTM WND DMG DANE 43.25N 89.50W
09/20/2021 DANE WI EMERGENCY MNGR
REPORT OF A LARGE POLE BARN COLLAPSED IN
TOWN OF DANE. DAMAGE REPORT CAME IN AT 10:10
PM BUT TIME STILL UNCERTAIN.
&&
MRCThe office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 7:22 PM CDT | Severe Thunderstorm Warning | MKX | Iowa, Sauk | 38 min |
| Sep 20, 7:46 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Sauk | 44 min |
| Sep 20, 7:59 PM CDT | Special Weather Statement | MKX | Iowa | 31 min |
| Sep 20, 8:23 PM CDT | Special Weather Statement | MKX | Marquette | 37 min |
| Sep 20, 8:37 PM CDT | Special Weather Statement | MKX | Columbia, Sauk | 38 min |
| Sep 20, 9:14 PM CDT | Special Weather Statement | MKX | Lafayette | 46 min |
| Sep 20, 9:21 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dodge | 24 min |
| Sep 20, 9:22 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Green, Iowa, Lafayette | 38 min |
| Sep 20, 9:24 PM CDT | Tornado Warning | MKX | Dane, Green, Iowa, Lafayette | 24 min |
| Sep 20, 9:44 PM CDT | Special Weather Statement | MKX | Green Lake | 46 min |
| Sep 20, 10:04 PM CDT | Special Weather Statement | MKX | Green | 41 min |
| Sep 20, 10:27 PM CDT | Special Weather Statement | MKX | Jefferson | 48 min |
| Sep 20, 10:41 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Jefferson | 20 min |
| Sep 21, 1:48 PM CDT | Gale Warning | MKX | 50 hr | |
| Sep 21, 1:48 PM CDT | Small Craft Advisory | MKX | 17 hr | |
| Sep 21, 1:51 PM CDT | Beach Hazards Statement | MKX | Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan | 58 hr |
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.