Watches, Warnings & Advisories



2 products issued by NWS for: 7NM NW Ludington MI

Severe Thunderstorm Watch

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 505
NWS STORM PREDICTION CENTER NORMAN OK
750 PM EDT MON JUL 20 2026

SEVERE THUNDERSTORM WATCH 505 IS IN EFFECT UNTIL 200 AM EDT
FOR THE FOLLOWING LOCATIONS

LHZ345-346-347-361-LMZ323-341-342-344-345-346-362-364-366-849-868-
LSZ322-210600-
/O.NEW.KWNS.SV.A.0505.260720T2350Z-260721T0600Z/

CW

.    ADJACENT COASTAL WATERS INCLUDED ARE

STRAITS OF MACKINAC WITHIN 5 NM OF MACKINAC BRIDGE INCLUDING
MACKINAC ISLAND

ST IGNACE TO FALSE DETOUR CHANNEL

5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LIGHT MI INCLUDING
BOIS BLANC ISLAND

LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT
TO THE US/CANADIAN BORDER BEYOND 5 NM FROM SHORE

GRAND TRAVERSE BAY SOUTH OF A LINE GRAND TRAVERSE LIGHT TO
NORWOOD MI

SEUL CHOIX POINT TO 5NM WEST OF MACKINAC BRIDGE

NORWOOD MI TO 5NM WEST OF MACKINAC BRIDGE INCLUDING LITTLE
TRAVERSE BAY

SLEEPING BEAR POINT TO GRAND TRAVERSE LIGHT MI

POINT BETSIE TO SLEEPING BEAR POINT MI

MANISTEE TO POINT BETSIE MI

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

PENTWATER TO MANISTEE MI

LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5NM OFFSHORE TO MID
LAKE

ST. MARYS RIVER POINT IROQUOIS TO E. POTAGANNISSING BAY

$$
ATTN...WFO...APX...GRR...







Small Craft Advisory

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
300 PM EDT Mon Jul 20 2026

LMZ844>849-210300-
/O.CON.KGRR.SC.Y.0051.000000T0000Z-260723T0300Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
300 PM EDT Mon Jul 20 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT
WEDNESDAY...

* WHAT...South winds tonight 15 to 25 knots with gusts to 30
  knots, then northwest 15 to 25 knots with gusts up to 33 knots
  on Tuesday and Wednesday. Waves 5 to 8 feet.

* WHERE...St Joseph to Manistee.

* WHEN...From 11 AM this morning to 11 PM EDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$