Alert archive / Massachusetts / Special Weather Statements in 2011

Special Weather Statement, NWS Boston/Norton, MA

July 3, 2011Franklin County, Massachusetts; Cheshire County, New Hampshire

NWS Boston/Norton, MA issued this special weather statement at Jul 3, 2011, 10:25 AM EDT for Franklin County, Massachusetts; Cheshire County, New Hampshire. It was in force for 50 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
Jul 3, 2011, 10:25 AM EDT (14:25 UTC)
Expired
Jul 3, 2011, 11:15 AM EDT
In force
50 min
Issued by
NWS Boston/Norton, MA

Counties Franklin County, MA, Cheshire County, NH

The radar

The Albany radar (KENX), 144 km from the middle of the area, began a volume at 14:25 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, 2.4 hours before the alert went out and 122 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, Albany, NY at 12:00Z on 2011-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Albany, NY at 12:00Z on 2011-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

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 Jul 3, 9:02 AM EDT, 1 hour 23 minutes earlier.

Area forecast discussion, Jul 3, 9:02 AM EDT, 1 hour 23 minutes before
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Hazardous weather outlook, Jul 3, 3:56 AM EDT, 6 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAUNTON MA
356 AM EDT SUN JUL 3 2011

CTZ002>004-MAZ002>024-026-NHZ011-012-015-RIZ001>008-040800-
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-
356 AM EDT SUN JUL 3 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN
CONNECTICUT...CENTRAL MASSACHUSETTS...EASTERN
MASSACHUSETTS...NORTHEASTERN MASSACHUSETTS...SOUTHEASTERN
MASSACHUSETTS...WESTERN MASSACHUSETTS...SOUTHERN NEW
HAMPSHIRE...NORTHERN RHODE ISLAND AND SOUTHERN RHODE ISLAND.

.DAY ONE...TODAY AND TONIGHT.

NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TO MOVE ACROSS
SOUTHERN NEW ENGLAND TODAY AND THIS EVENING. WHILE A WIDESPREAD
SEVERE WEATHER OUTBREAK IS NOT EXPECTED...A FEW STRONG TO SEVERE
THUNDERSTORMS ARE POSSIBLE MAINLY DURING THE AFTERNOON AND EVENING
HOURS. THE MAIN THREATS WOULD BE ISOLATED STRONG TO DAMAGING WIND
GUSTS.

THE MAIN CONCERN WILL BE THE POTENTIAL FOR TORRENTIAL RAINFALL AND
THE LIKELIHOOD FOR LOCALIZED FLOODING WITH THE STRONGER STORMS. THIS
WILL LIKELY REQUIRE THE ISSUANCE OF SHORT FUSED FLOOD ADVISORIES.
THERE ALSO IS A LOW PROBABILITY OF MORE SERIOUS ISOLATED POCKETS
OF FLASH FLOODING MAINLY THIS AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ230>237-250-251-254>256-040800-
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-
356 AM EDT SUN JUL 3 2011

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

.DAY ONE...TODAY AND TONIGHT.

STRONG THUNDERSTORMS MAY RESULT IN ISOLATED STRONG WIND GUSTS LATE
THIS AFTERNOON AND ESPECIALLY THIS EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 3, 10:25 AM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1025 AM EDT SUN JUL 3 2011

MAZ002>004-008-010-NHZ011-015-031515-
CHESHIRE NH-EASTERN FRANKLIN MA-EASTERN HAMPSHIRE MA-NORTHERN
WORCESTER MA-WESTERN AND CENTRAL HILLSBOROUGH NH-WESTERN FRANKLIN
MA-WESTERN HAMPSHIRE MA-
1025 AM EDT SUN JUL 3 2011

...SHOWERS AND THUNDERSTORMS WITH LOCALLY HEAVY RAIN IN SOUTHWEST
NEW HAMPSHIRE AND NORTHERN MASSACHUSETTS...

AT 1020 AM EDT A LINE OF SHOWERS AND THUNDERSTORMS...WITH LOCALLY
HEAVY DOWNPOURS...STRETCHED FROM NEAR BELLOWS FALLS VERMONT
SOUTHWARD TO BRATTLEBORO...AND SOUTHWESTWARD TO CHARLEMONT IN
FRANKLIN COUNTY MASSACHUSETTS. THE LINE WAS MOVING TO THE SOUTHEAST
AT 25 MPH AND WILL BE AFFECTING MUCH OF CHESHIRE COUNTY NEW
HAMPSHIRE...EASTERN FRANKLIN COUNTY AND NORTHERN WORCESTER COUNTY IN
MASSACHUSETTS THROUGH 1130 AM.

* SOME LOCATIONS AFFECTED INCLUDE...KEENE...SWANZEY...WINCHESTER...
  GREENFIELD...AND WENDELL...AND ATHOL.

HEAVY RAIN MAY CAUSE MINOR STREET FLOODING AND PONDING OF WATER IN
LOW LYING AREAS SUCH AS UNDERPASSES. DO NOT DRIVE THROUGH FLOODED
ROADS.

&&

LAT...LON 4314 7217 4313 7205 4316 7202 4308 7183
      4258 7223 4229 7233 4247 7285 4274 7277
      4273 7246 4276 7252 4288 7256 4292 7253
      4295 7254 4301 7245 4305 7247 4311 7244
      4316 7246 4314 7238 4316 7238 4319 7216

FIELD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 3:33 PM EDTSpecial Weather StatementBOXBristol57 min
Jul 3, 2:42 PM EDTSpecial Weather StatementBOXKent63 min
Jul 3, 3:22 PM EDTSpecial Weather StatementBOXBristol53 min
Jul 3, 11:54 AM EDTSpecial Weather StatementBOX51 min
Jul 3, 1:39 PM EDTSpecial Weather StatementBOX51 min

Nearby

Special Weather Statements in Massachusetts, 2011Special Weather Statements in New Hampshire, 2011Every special weather statement in 2011

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.