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PUBLIC INFORMATION STATEMENT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
854 AM EST FRI NOV 8 2019  
   
..WINTER WEATHER PREPAREDNESS WEEK - PART FIVE
 
 
THE NATIONAL WEATHER SERVICE HAS DECLARED THE WEEK OF NOVEMBER 4  
TO NOVEMBER 8 AS WINTER WEATHER PREPAREDNESS WEEK. THE FOLLOWING  
IS PART 5 OF A 5-PART SERIES OF INFORMATIONAL STATEMENTS.  
 
PART 5 - ICE SAFETY  
 
FREEZING DRIZZLE AND FREEZING RAIN...  
 
ANY AMOUNT OF RAIN THAT FREEZES ON CONTACT WITH ROADWAYS OR  
SIDEWALKS CAN BE DANGEROUS. BRIDGES AND OVERPASSES CAN BE  
PARTICULARLY DANGEROUS BECAUSE THEY FREEZE BEFORE OTHER SURFACES.  
ONLY ONE HUNDREDTH OF AN INCH OF FREEZING RAIN CAUSED A 70-CAR  
PILEUP IN WORCESTER ON DECEMBER 1, 2013. HOWEVER, WHEN ICE  
ACCUMULATES TO MORE THAN ONE-HALF INCH ON POWER LINES, THEY CAN  
BE KNOCKED DOWN. EXTREME DAMAGE TO TREES, UTILITY POLES, AND  
COMMUNICATIONS TOWERS CAN OCCUR WHEN 1 TO 2 INCHES OF ICE  
ACCUMULATES. POWER MAY NOT BE RESTORED FOR SEVERAL DAYS.  
 
THE NATIONAL WEATHER SERVICE ISSUES A WINTER WEATHER ADVISORY  
FOR ICE AMOUNTS RANGING FROM JUST A TRACE ON ROADWAYS TO LESS  
THAN ONE-HALF INCH. AN ICE STORM WARNING IS ISSUED WHEN ICE  
IS EXPECTED TO ACCUMULATE ONE-HALF INCH OR MORE, WITH RESPECT  
TO A FLAT SURFACE.  
 
BLACK ICE...  
 
THE TERM BLACK ICE REFERS TO PATCHY ICE ON ROAD SURFACES THAT  
CANNOT BE EASILY SEEN. OFTEN IT IS CLEAR, WITH THE BLACK ROAD  
SURFACE VISIBLE UNDERNEATH. THIS CAN ALSO BE A DEADLY DRIVING  
HAZARD. IT IS MOST PREVALENT DURING THE EARLY MORNING HOURS,  
ESPECIALLY AFTER SNOWMELT ON THE ROADWAYS HAS HAD A CHANCE TO  
REFREEZE OVERNIGHT WHEN THE TEMPERATURE DROPS BELOW FREEZING.  
 
ICE JAMS...  
 
LONG COLD SPELLS CAN CAUSE RIVERS AND LAKES TO FREEZE. A RISE  
IN THE WATER LEVEL OR A THAW BREAKS THE ICE INTO LARGE CHUNKS  
WHICH THEN BECOME JAMMED AT MAN MADE AND NATURAL OBSTRUCTIONS.  
ICE JAMS CAN ACT AS A DAM, RESULTING IN SEVERE FLOODING, BOTH  
UPSTREAM AND DOWNSTREAM OF THE BLOCKAGE.  
 
ICE RECREATION...  
 
ICE ON LAKES AND STREAMS CAN BECOME DEADLY. BEFORE WALKING,  
FISHING, SKIING, SNOWMOBILING OR ENGAGING IN ANY OTHER ACTIVITIES  
ON ICE, CHECK WITH YOUR LOCAL POLICE, FIRE, OR PARK DEPARTMENT  
TO ENSURE THAT SAFE ICE CONDITIONS EXIST. DO NOT GO OUT ON THE  
ICE IF YOU SEE  
- CRACKS OR HOLES IN THE ICE  
- FLOWING WATER AROUND THE EDGES, JUST BELOW THE SURFACE, OR  
OVER THE TOP OF THE ICE  
- ICE THAT APPEARS TO HAVE THAWED AND REFROZEN  
 
BEWARE OF ICE COVERED WITH SNOW. SNOW CAN INSULATE ICE AND KEEP  
IT STRONG, BUT IT CAN ALSO INSULATE IT TO KEEP IT FROM FREEZING.  
SNOW CAN HIDE CRACKS, WEAK, AND OPEN ICE. ALSO, ICE SELDOM  
FREEZES OR THAWS AT A UNIFORM RATE. IT CAN BE ONE FOOT THICK  
IN ONE SPOT AND BE ONLY A FEW INCHES THICK 10 FEET AWAY.  
 
IF YOU DECIDE TO VENTURE OUT ON THE ICE, REMEMBER THE FOLLOWING  
GUIDELINES.  
 
- STAY OFF THE ICE IF IT LESS THAN 2 INCHES THICK.  
- FOR WALKING, ICE SKATING, OR ICE FISHING, YOU NEED 4 OR MORE  
INCHES OF ICE THICKNESS.  
 
NEVER GO ONTO THE ICE ALONE. A FRIEND MAY BE ABLE TO RESCUE YOU  
OR GO FOR HELP IF YOU FALL THROUGH THE ICE. IF A COMPANION FALLS  
THROUGH THE ICE AND YOU ARE UNABLE TO REACH THAT PERSON FROM  
SHORE, THROW THEM SOMETHING LIKE A ROPE, JUMPER CABLES, A TREE  
BRANCH, ETC. IF THAT DOES NOT HELP, CALL 9-1-1 BEFORE YOU ALSO  
BECOME A VICTIM. THE MASSACHUSETTS EMERGENCY MANAGEMENT AGENCY  
STATES THAT IF YOU FALL IN, TRY NOT TO PANIC. TURN TOWARD THE  
DIRECTION FROM WHICH YOU CAME. PLACE YOUR HANDS AND ARMS ON THE  
UNBROKEN SURFACE, WORKING FORWARD BY KICKING YOUR FEET. ONCE  
OUT, REMAIN LYING ON THE ICE AND ROLL AWAY FROM THE HOLE -- BUT  
DO NOT STAND. CRAWL BACK TO YOUR TRACKS, KEEPING YOUR WEIGHT  
DISTRIBUTED UNTIL YOU RETURN TO SOLID ICE.  
 
THIS CONCLUDES PART 5 OF THE WINTER WEATHER PREPAREDNESS WEEK.  
 

 
 
FOR THE LATEST UPDATES...PLEASE VISIT OUR WEBPAGE AT  
WWW.WEATHER.GOV/BOSTON  
 
YOU CAN FOLLOW US ON FACEBOOK AT  
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.BOSTON.GOV  
 
YOU CAN FOLLOW US ON TWITTER AT  
@NWSBOSTON  
 
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