591  
WHUS56 KMTR 171858  
SMWMTR  
PZZ535-171915-  
/O.NEW.KMTR.MA.W.0021.250317T1858Z-250317T1915Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE SAN FRANCISCO CA  
1158 AM PDT MON MAR 17 2025  
 
THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
MONTEREY BAY...  
 
* UNTIL 1215 PM PDT.  
 
* AT 1158 AM PDT, A SEVERE THUNDERSTORM CAPABLE OF PRODUCING  
WATERSPOUTS WAS LOCATED 5 NM WEST OF MOSS LANDING, MOVING EAST AT  
20 KNOTS.  
 
HAZARD...WATERSPOUTS AND WIND GUSTS TO 40 KNOTS.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE  
LOCALLY HAZARDOUS SEAS. SMALL CRAFT COULD BE DAMAGED  
IN BRIEFLY HIGHER WINDS AND SUDDENLY HIGHER WAVES.  
 
* LOCATIONS IMPACTED INCLUDE...  
MAINLY OPEN WATERS OF MONTEREY BAY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.  
 
BOATERS SHOULD SEEK SAFE HARBOR IMMEDIATELY UNTIL THIS STORM PASSES.  
WIND GUSTS 34 KNOTS OR GREATER, HIGH WAVES, DANGEROUS LIGHTNING, AND  
HEAVY RAIN ARE POSSIBLE WITH THIS STORM.  
 
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 3680 12179 3675 12181 3673 12181 3676 12194  
3689 12194 3692 12185 3685 12181 3682 12179  
TIME...MOT...LOC 1858Z 264DEG 21KT 3681 12189  
 
WATERSPOUT...POSSIBLE  
MAX HAIL SIZE...<.75 IN  
MAX WIND GUST...40 KTS  
 
 
 
BKM  
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