Alert archive / Massachusetts / Special Weather Statements in 2014

Special Weather Statement, NWS Boston/Norton, MA

October 18, 2014Norfolk County, Massachusetts

NWS Boston/Norton, MA issued this special weather statement at Oct 18, 2014, 3:03 PM EDT for Norfolk County, Massachusetts. It was in force for 27 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
Oct 18, 2014, 3:03 PM EDT (19:03 UTC)
Expired
Oct 18, 2014, 3:30 PM EDT
In force
27 min
Issued by
NWS Boston/Norton, MA

County Norfolk County, MA

The radar

The Boston radar (KBOX), 24 km from the middle of the area, began a volume at 19:03 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

Brookhaven, NY (KOKX), launched 12:00Z, 7.1 hours before the alert went out and 187 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2014-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 148 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2014-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
148 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
564 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
178 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Oct 18, 1:49 PM EDT, 1 hour 14 minutes earlier.

Area forecast discussion, Oct 18, 1:49 PM EDT, 1 hour 14 minutes before
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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Oct 18, 4:18 AM EDT, 10 hours 45 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAUNTON MA
418 AM EDT SAT OCT 18 2014

CTZ002>004-MAZ002>024-026-NHZ011-012-015-RIZ001>008-190830-
HARTFORD CT-TOLLAND CT-WINDHAM CT-WESTERN FRANKLIN MA-
EASTERN FRANKLIN MA-NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-
WESTERN ESSEX MA-EASTERN ESSEX MA-WESTERN HAMPSHIRE MA-
WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA-EASTERN HAMPDEN MA-
SOUTHERN WORCESTER MA-WESTERN NORFOLK MA-SOUTHEAST MIDDLESEX MA-
SUFFOLK MA-EASTERN NORFOLK MA-NORTHERN BRISTOL MA-
WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-SOUTHERN BRISTOL MA-
SOUTHERN PLYMOUTH MA-BARNSTABLE MA-DUKES MA-NANTUCKET MA-
NORTHERN MIDDLESEX MA-CHESHIRE NH-EASTERN HILLSBOROUGH NH-
WESTERN AND CENTRAL HILLSBOROUGH NH-NORTHWEST PROVIDENCE RI-
SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-EASTERN KENT RI-BRISTOL RI-
WASHINGTON RI-NEWPORT RI-BLOCK ISLAND RI-
418 AM EDT SAT OCT 18 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN CONNECTICUT...ALL
OF MASSACHUSETTS EXCEPT BERKSHIRE COUNTY...SOUTHERN NEW HAMPSHIRE
AND RHODE ISLAND.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

FROST/FREEZE HEADLINES ARE LIKELY SUNDAY NIGHT FOR A PORTION OF
THE REGION.

A SLOW MOVING COASTAL STORM WILL LIKELY IMPACT THE REGION TUESDAY
THROUGH FRIDAY. POTENTIAL IMPACTS FROM THIS STORM ARE HEAVY
RAIN...STRONG WINDS AND COASTAL FLOODING. HOWEVER THE PLACEMENT OF
THE HEAVIEST RAIN...STRONGEST WINDS AND MAGNITUDE OF COASTAL
FLOODING REMAINS UNCERTAIN AT THIS TIME RANGE AND WILL DEPEND ON
THE EXACT TRACK OF THE COASTAL STORM. IT IS POSSIBLE THE WORST OF
THE RAIN...WIND AND COASTAL FLOODING WILL BE IN NORTHERN NEW
ENGLAND BUT CANT RULE OUT A GREATER IMPACT FURTHER SOUTH IN
SOUTHERN NEW ENGLAND. THIS COULD BE A HIGH IMPACT STORM SO STAY
TUNED TO LATER FORECASTS/DISCUSSIONS FOR THE LATEST INFORMATION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ230>237-250-251-254>256-190830-
BOSTON HARBOR-CAPE COD BAY-NANTUCKET SOUND-VINEYARD SOUND-
BUZZARDS BAY-RHODE ISLAND SOUND-NARRAGANSETT BAY-BLOCK ISLAND SOUND-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK NATIONAL
MARINE SANCTUARY-MASSACHUSETTS BAY AND IPSWICH BAY-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD AND
NANTUCKET-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT TO
20 NM SOUTH OF BLOCK ISLAND-
418 AM EDT SAT OCT 18 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MASSACHUSETTS AND RHODE
ISLAND COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

EAST TO NORTHEAST GALE FORCE WINDS ARE POSSIBLE SOMETIME
WEDNESDAY INTO THURSDAY WITH THE BEST CHANCE OVER THE NORTHEAST
MASSACHUSETTS COASTAL WATERS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

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

In the hours before

Special weather statement, Oct 18, 3:03 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
303 PM EDT SAT OCT 18 2014

MAZ013-181930-
WESTERN NORFOLK-
303 PM EDT SAT OCT 18 2014

...A THUNDERSTORM DEVELOPING IN WESTERN NORFOLK COUNTY COUNTY...

AT 302 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
A THUNDERSTORM OVER FRANKLIN...MOVING NORTHEAST AT 30 MPH.

THIS STORM MAY CONTAIN HAIL UP TO THE SIZE OF PEAS AND WIND GUSTS UP
TO 30 MPH ALONG WITH BRIEF HEAVY RAIN CAN BE EXPECTED WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
FRANKLIN...NEEDHAM...NORWOOD...STOUGHTON...DEDHAM...WALPOLE...
CANTON...SHARON...FOXBOROUGH...BELLINGHAM...WESTWOOD...MEDWAY...
MEDFIELD...NORFOLK...WRENTHAM...MILLIS AND DOVER.

LAT...LON 4203 7147 4208 7149 4229 7122 4211 7108
TIME...MOT...LOC 1902Z 241DEG 24KT 4207 7144

NOCERA

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 4:30 PM EDTFreeze WatchBOXBristol, Essex, Hampden, Hampshire, Middlesex, Norfolk and 2 more11 hr
Oct 18, 4:31 PM EDTSmall Craft AdvisoryBOX
Oct 18, 4:33 PM EDTSpecial Weather StatementBOXSuffolk27 min

Nearby

Special Weather Statements in Massachusetts, 2014Every special weather statement in 2014

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.