Alert archive / Massachusetts / Special Weather Statements in 2016

Special Weather Statement, NWS Boston/Norton, MA

April 1, 2016Franklin County, Massachusetts

NWS Boston/Norton, MA issued this special weather statement at Apr 1, 2016, 3:56 PM EDT for Franklin County, Massachusetts. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 1, 2016, 3:56 PM EDT (19:56 UTC)
Expired: Apr 1, 2016, 5:00 PM EDT
In force: 64 min
Issued by: NWS Boston/Norton, MA

County Franklin County, MA

The radar

The Boston radar (KBOX), 130 km from the middle of the area, began a volume at 19:57 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.9 hours before the alert went out and 115 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 56 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 1010 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 189 m²/s²
0-3 km storm-relative helicity: 290 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Boston/Norton, MA wrote its last area forecast discussion before this special weather statement went out at Apr 1, 3:49 PM EDT, 7 minutes earlier.

Area forecast discussion, Apr 1, 3:49 PM EDT, 7 minutes before

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Hazardous weather outlook, Apr 1, 4:25 AM EDT, 11 hours 31 minutes before

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In the hours before

Special weather statement, Apr 1, 12:08 PM EDT, 3 hours 48 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1208 PM EDT FRI APR 1 2016

RIZ006>008-012100-
WASHINGTON RI-NEWPORT RI-BLOCK ISLAND RI-
INCLUDING THE CITIES OF...NARRAGANSETT...WESTERLY...NEWPORT...
BLOCK ISLAND
1208 PM EDT FRI APR 1 2016

...AREAS OF DENSE FOG ALONG THE SOUTH COAST OF RHODE ISLAND...

AREAS OF DENSE FOG WILL IMPACT THE SOUTH COAST OF RHODE ISLAND
THROUGH MUCH OF TODAY AND POSSIBLY INTO THIS EVENING...BEFORE
WINDS SHIFT INTO THE WEST. UNTIL THEN AREAS OF DENSE FOG WILL
REDUCE VISIBILITY TO A QUARTER MILE OR LESS AT TIMES.

DUNTEN

Special weather statement, Apr 1, 3:56 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
356 PM EDT FRI APR 1 2016

MAZ002>004-008-012100-
WESTERN FRANKLIN MA-NORTHERN WORCESTER MA-EASTERN FRANKLIN MA-
WESTERN HAMPSHIRE MA-
356 PM EDT FRI APR 1 2016

...STRONG THUNDERSTORM IN NORTHWESTERN HAMPSHIRE...AND CENTRAL
FRANKLIN COUNTIES...

AT 353 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
CUMMINGTON...OR 13 MILES NORTHWEST OF NORTHAMPTON...MOVING NORTHEAST
AT 50 MPH.

WIND GUSTS UP TO 50 MPH ARE POSSIBLE WITH THIS STORM. BRIEF LOCALLY
HEAVY DOWNPOURS ARE ALSO POSSIBLE.

LOCATIONS IMPACTED INCLUDE...
GREENFIELD...ORANGE...DEERFIELD...GARDNER...ATHOL...WINCHENDON...MONTAGUE...
TEMPLETON...ASHBURNHAM...WINCHESTER...SUNDERLAND...NORTHFIELD...
WILLIAMSBURG...BERNARDSTON...BUCKLAND...CONWAY...SHELBURNE...LEVERETT...
ERVING AND ASHFIELD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GET INDOORS WHEN THIS STORM APPROACHES. WINDS MAY BE STRONG ENOUGH TO
PRODUCE MINOR DAMAGE...SUCH AS A FEW DOWNED BRANCHES.

&&

LAT...LON 4273 7245 4271 7191 4265 7186 4240 7292
      4252 7298
TIME...MOT...LOC 1953Z 246DEG 50KT 4246 7287

WTB

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 1, 7:21 PM EDT	Special Weather Statement	BOX	Middlesex	54 min
Apr 1, 7:23 PM EDT	Gale Watch	BOX		9 hr
Apr 1, 7:23 PM EDT	Storm Watch	BOX		9 hr
Apr 1, 7:35 PM EDT	Severe Thunderstorm Warning	BOX	Capitol Planning Region, Northeastern Connecticut Planning Region	40 min

Nearby

Special Weather Statements in Massachusetts, 2016 Every special weather statement in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.