503  
FGUS71 KBOX 161525  
ESFBOX  
CTC003-013-015-MAC001-005-007-009-011-013-015-017-019-021-023-025-  
027-RIC001-003-005-007-009-181530-  
 
WINTER/SPRING FLOOD POTENTIAL OUTLOOK  
NATIONAL WEATHER SERVICE TAUNTON MA  
1125 AM EDT THU MAR 16 2017  
 
...THE SPRING FLOOD POTENTIAL IS NEAR NORMAL FOR SOUTHERN NEW  
ENGLAND...  
 
THE SPRING FLOOD POTENTIAL FOR SOUTHERN NEW ENGLAND IS NEAR  
NORMAL. THE POTENTIAL FOR FLOODING DUE TO ICE JAMS IS OVER FOR THE  
SEASON.  
 
THE FOLLOWING WEB SITE HAS A MAP DEPICTING THE FLOOD POTENTIAL  
OUTLOOK...HTTP://WWW.WEATHER.GOV/NERFC/SPRINGFLOODPOTENTIAL  
 
THIS IS THE SEVENTH WINTER/SPRING FLOOD POTENTIAL OUTLOOK OF THE  
2017 SEASON. THIS OUTLOOK IS BASED ON CURRENT AND FORECAST  
HYDROMETEOROLOGICAL CONDITIONS. THIS INCLUDES SNOW COVER AND SNOW  
WATER EQUIVALENT, STREAM AND RIVER LEVELS AND THE AMOUNT OF ICE  
COVERAGE, RECENT PRECIPITATION AND TEMPERATURES, AND EXPECTED  
TEMPERATURES AND PRECIPITATION OVER THE NEXT TWO WEEKS.  
   
..RECENT PRECIPITATION
 
 
SOUTHERN NEW ENGLAND EXPERIENCED BELOW NORMAL PRECIPITATION FOR  
THE FIRST 13 DAYS OF MARCH, BUT A POWERFUL WINTER STORM BROUGHT  
SIGNIFICANT RAINFALL AND SNOWFALL TO THE REGION ON MARCH 14TH.  
THIS EVENT BROUGHT MONTH TO DATE PRECIPITATION TO NEAR NORMAL. A  
SUMMARY OF LIQUID EQUIVALENT PRECIPITATION FOLLOWS.  
 
CAPE COD AND THE ISLANDS HAD PREDOMINANTLY RAINFALL DURING THE  
MARCH 14 STORM, WITH A TRACE TO 2 INCHES OF SNOWFALL. LIQUID  
CONTENT RANGED FROM 1.3 TO 1.8 INCHES.  
 
EAST COASTAL MA EXPERIENCED MODERATE TO HEAVY SNOWFALL ON MARCH  
14, WHICH EVENTUALLY CHANGED OVER TO A PERIOD OF RAINFALL DURING  
THE LATE MORNING AND AFTERNOON HOURS. THE LIQUID CONTENT OF THE  
SNOWFALL AND SUBSEQUENT RAINFALL RANGED FROM 1.25 TO 2.5 INCHES.  
 
INTERIOR SOUTHERN NEW ENGLAND EXPERIENCED PREDOMINANTLY SNOWFALL ON  
MARCH 14TH, WITH LIQUID CONTENT RANGING FROM 1.25 TO OVER 2 INCHES.  
   
..OBSERVED SNOW DEPTHS AND WATER EQUIVALENTS
 
 
 
THE SNOWPACK ON THE GROUND AS OF MARCH 15 WAS PREDOMINANTLY FROM THE  
WINTER STORM THAT OCCURRED ON MARCH 14. PREVIOUSLY, THERE WAS A  
MINIMAL AMOUNT OF SNOW ON THE GROUND IN SOUTHERN NEW ENGLAND.  
 
AS OF MARCH 15, ACROSS MUCH OF SOUTHERN NEW ENGLAND, SNOW DEPTH  
RANGED FROM 8 TO 18 INCHES. THE LOWER SNOW DEPTHS WERE FOUND IN  
PORTIONS OF THE CONNECTICUT RIVER VALLEY, NORTHEAST CT, AND  
EASTERN MA IN THE VICINITY OF THE I-95 CORRIDOR. SNOW DEPTH OF 2  
TO 8 INCHES WAS FOUND THE I-95 CORRIDOR IN MA AND THE NORTHERN  
HALF OF RI, WITH LOCALIZED HIGHER TOTALS IN THE HIGHER HILLS OF  
NORTHWEST RHODE ISLAND. SNOW DEPTH OF A TRACE TO SEVERAL INCHES  
WAS FOUND ALONG THE IMMEDIATE COASTLINE OF MA INCLUDING CAPE COD,  
AS WELL AS SOUTH COASTAL RHODE ISLAND. BLOCK ISLAND, NANTUCKET  
ISLAND AND MARTHA'S VINEYARD HAD BARE GROUND.  
 
THE WATER CONTENT OF THE SNOW PACK RANGED MAINLY FROM 1 TO 2  
INCHES ACROSS INTERIOR SOUTHERN NEW ENGLAND, AND ALONG AND WEST  
OF THE I-95 CORRIDOR IN MA AND RI. PORTIONS OF THE WORCESTER HILLS  
AND EAST SLOPES OF THE BERKSHIRES HAD WATER CONTENT BETWEEN 2 AND  
2.5 INCHES. WATER CONTENT IN THE SNOW PACK WAS MAINLY AROUND AN  
INCH OR LESS EAST OF THE I-95 CORRIDOR IN MA, AND IN RHODE ISLAND  
ALONG AND SOUTH OF THE I-95 CORRIDOR.  
   
..RIVER AND ICE CONDITIONS
 
 
 
AS OF MARCH 15, RIVERS AND STREAMS WERE RUNNING AT NORMAL OR BELOW  
NORMAL LEVELS ACROSS MA, NORTHERN CT, AND NORTHERN RI. RIVERS AND  
STREAMS WERE RUNNING AT NORMAL TO ABOVE NORMAL LEVELS IN RI. THIS  
WAS DUE TO THE MARCH 14TH EVENT BEING PREDOMINANTLY A  
SOAKING RAINFALL IN THAT AREA.  
 
THERE IS NO ICE ISSUES ON THE RIVERS AND STREAMS OF SOUTHERN NEW  
ENGLAND. THEREFORE, THE FLOODING POTENTIAL DUE TO ICE JAMS IS OVER  
FOR THIS SEASON.  
   
..SOIL MOISTURE CONDITIONS
 
 
 
SOIL MOISTURE WAS BELOW NORMAL PRIOR TO THE MARCH 14TH EVENT. THE  
RECENT STORM PROVIDED A BOOST TO AREA SOIL MOISTURE IN AREAS  
WHERE A PERIOD OF RAINFALL OCCURRED.  
 
USGS GROUND WATER WELLS TRANSMITTING IN REAL-TIME ARE PREDOMINANTLY  
BELOW NORMAL IN NORTHERN CT, AND NORMAL TO BELOW NORMAL ACROSS MUCH  
OF MA AND RI. WELLS WERE PREDOMINANTLY AT BELOW OR WELL BELOW NORMAL  
LEVELS ACROSS CAPE COD AND THE ISLANDS.  
   
..TEMPERATURE AND PRECIPITATION OUTLOOK
 
 
LOOKING AT THE FORECAST, HIGH PRESSURE BRINGS DRY AND MILDER  
WEATHER FOR FRIDAY. A CLIPPER LOW TRACKS SOUTH OF NEW ENGLAND THIS  
WEEKEND BRING THE POTENTIAL FOR ACCUMULATING SNOW TO THE AREA  
LATE SATURDAY INTO SUNDAY. DRY WEATHER AND NOT AS COLD CONDITIONS  
RETURN MONDAY AS HIGH PRESSURE BUILDS INTO THE REGION. MILDER  
WEATHER IS FORECAST FOR TUESDAY, AHEAD OF AN ARCTIC FRONT. THIS  
FRONT WILL BRING THE CHANCE FOR A FEW SHOWERS. A FRIGID AIRMASS  
THEN OVERSPREADS THE AREA THE MIDDLE OF NEXT WEEK.  
 
WITH DAYTIME HIGHS IN THE 30S TO 40S OVER THE NEXT 7 DAYS,  
MELTING OF THE EXISTING SNOW PACK WILL BE SLOW. IN ADDITION, THERE  
COULD BE SOME BUILDUP OF THE SNOW PACK WITH THIS WEEKEND'S  
POTENTIAL CLIPPER.  
 
LOOKING FARTHER AHEAD, THE CLIMATE PREDICTION CENTER'S 8 TO 14 DAY  
OUTLOOK COVERING THE PERIOD FROM MARCH 23 TO 29 INDICATES A  
LIKELIHOOD OF BELOW NORMAL TEMPERATURES, WITH THE POTENTIAL FOR  
NORMAL TO ABOVE NORMAL PRECIPITATION.  
   
..SUMMARY
 
 
BASED ON INFORMATION AVAILABLE AT THIS TIME, THE SPRING FLOOD  
POTENTIAL IS NEAR NORMAL WITHIN SOUTHERN NEW ENGLAND.  
 
RIVERS AND STREAMS, AS WELL AS GROUND WATER, ARE PREDOMINANTLY AT  
NORMAL TO BELOW NORMAL LEVELS FOR THIS TIME OF YEAR. HOWEVER, SNOW  
COVER IS ABOVE NORMAL FOR THIS TIME OF YEAR DUE TO THE VERY RECENT  
WINTER STORM. WITH OVERALL TEMPERATURES FORECAST TO BE BELOW  
NORMAL OVER THE NEXT 7 DAYS, SNOWMELT IS EXPECTED TO BE GRADUAL.  
THE POTENTIAL EXISTS FOR NORMAL TO ABOVE NORMAL PRECIPITATION  
WITHIN SOUTHERN NEW ENGLAND OVER THE NEXT 2 WEEKS.  
 
KEEP IN MIND THAT HEAVY RAIN CAN CAUSE FLOODING ANY TIME OF THE  
YEAR. THOSE WITH INTERESTS ALONG RIVERS AND STREAMS SHOULD CHECK THE  
HAZARDOUS WEATHER OUTLOOK, WHICH HIGHLIGHTS ANY POTENTIAL FLOOD  
EVENTS OVER THE NEXT 7 DAYS. GO TO HTTP://WEATHER.GOV/BOSTON AND  
CLICK ON THE OPTION HAZARDS, THEN CLICK ON LOCAL OUTLOOK.  
 
THE NEXT OUTLOOK WILL BE ISSUED ON THURSDAY, MARCH 30.  
 

 
 
FOR THE LATEST UPDATES...PLEASE VISIT OUR WEBPAGE AT  
WWW.WEATHER.GOV/BOSTON  
 
YOU CAN FOLLOW US ON FACEBOOK AT  
WWW.FACEBOOK.COM/NWSBOSTON  
 
YOU CAN FOLLOW US ON TWITTER AT  
@NWSBOSTON  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MA Page
The Nexlab RI Page
The Nexlab NH Page
The Nexlab CT Page Main Text Page