978
WHUS53 KGRR 050412
SMWGRR
LMZ844-878-050545-
/O.NEW.KGRR.MA.W.0071.260905T0412Z-260905T0545Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1212 AM EDT SAT SEP 5 2026
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
* SPECIAL MARINE WARNING FOR...
NEARSHORE AND OPEN WATERS FROM ST JOSEPH TO SOUTH HAVEN MI...
* UNTIL 145 AM EDT.
* AT 1210 AM EDT, A STRONG THUNDERSTORM WAS LOCATED 9 NM SOUTHWEST
OF SOUTH HAVEN LIGHT, MOVING EAST AT 20 KNOTS. ADDITIONAL STRONG
THUNDERSTORMS WERE LOCATED AT MID LAKE, ROUGHLY 40 MILES WEST OF
THE SOUTH HAVEN LIGHT. THESE STORMS WERE ALSO MOVING EAST AT 20
KNOTS.
HAZARD...WIND GUSTS TO 40 KNOTS AND SMALL HAIL.
SOURCE...RADAR.
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND
SUDDENLY HIGHER WAVES.
* LOCATIONS IMPACTED INCLUDE...
SOUTH HAVEN LIGHT, ST. JOSEPH LIGHT, AND ST. JOSEPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF CAUGHT ON THE
OPEN WATER STAY BELOW DECK IF POSSIBLE, KEEP AWAY FROM UNGROUNDED
METAL OBJECTS.
LAT...LON 4213 8656 4212 8696 4245 8702 4244 8636
4241 8629 4239 8628 4225 8635 4211 8649
TIME...MOT...LOC 0410Z 291DEG 21KT 4233 8647
HAIL...<.75IN
WIND...40KTS
DUKE
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