Alert archive / Massachusetts / Special Weather Statements in 2011

Special Weather Statement, NWS Boston/Norton, MA

July 4, 2011Worcester County, Massachusetts

NWS Boston/Norton, MA issued this special weather statement at Jul 4, 2011, 7:45 PM EDT for Worcester County, Massachusetts. It was in force for 60 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 4, 2011, 7:45 PM EDT (23:45 UTC)
Expired
Jul 4, 2011, 8:45 PM EDT
In force
60 min
Issued by
NWS Boston/Norton, MA

County Worcester County, MA

The radar

The Boston radar (KBOX), 94 km from the middle of the area, began a volume at 23:44 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, 11.8 hours before the alert went out and 163 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 2011-07-04Temperature 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 2011-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 square meters per square second.193958Sfc1 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
1072 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 4, 6:51 PM EDT, 54 minutes earlier.

Area forecast discussion, Jul 4, 6:51 PM EDT, 54 minutes before
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Hazardous weather outlook, Jul 4, 4:25 PM EDT, 3 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAUNTON MA
425 PM EDT MON JUL 4 2011

CTZ002>004-MAZ002>024-026-NHZ011-012-015-RIZ001>008-052030-
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-
425 PM EDT MON JUL 4 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...TONIGHT.

WIDELY SCATTERED THUNDERSTORMS WILL AFFECT MAINLY NORTHEAST
MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE INTO EARLY THIS EVENING.
THERE IS A LOW PROBABILITY OF AN ISOLATED SEVERE STORM WITH
DAMAGING WIND AND/OR LARGE HAIL.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ230>237-250-251-254>256-052030-
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-
425 PM EDT MON JUL 4 2011

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

.DAY ONE...TONIGHT.

A FEW STRONG GUSTY THUNDERSTORMS ARE POSSIBLE INTO EARLY
EVENING...ESPECIALLY OVER THE NORTHERN COASTAL WATERS FROM BOSTON
HARBOR NORTHWARD TO CAPE ANN AND THE MERRIMACK RIVER.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jul 4, 6:25 PM EDT, 1 hour 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAUNTON MA
625 PM EDT MON JUL 04 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0607 PM     TSTM WND DMG     AMESBURY                42.86N  70.93W
07/04/2011                   ESSEX              MA   AMATEUR RADIO

            TREE DOWN ON WHITEHALL ROAD.

&&

FRANK
Local storm report, Jul 4, 6:26 PM EDT, 1 hour 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAUNTON MA
626 PM EDT MON JUL 04 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0615 PM     HAIL             SALISBURY               42.83N  70.84W
07/04/2011  M1.00 INCH       ESSEX              MA   AMATEUR RADIO

&&

FRANK
Local storm report, Jul 4, 6:31 PM EDT, 1 hour 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAUNTON MA
631 PM EDT MON JUL 04 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0626 PM     TSTM WND DMG     BYFIELD                 42.76N  70.95W
07/04/2011                   ESSEX              MA   AMATEUR RADIO

            TREE DOWN BLOCKING ROAD.

&&

FRANK
Local storm report, Jul 4, 6:52 PM EDT, 53 minutes before
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Special weather statement, Jul 4, 7:08 PM EDT, 37 minutes before
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Special weather statement, Jul 4, 7:45 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 8:35 PM EDTSpecial Marine WarningBOX55 min
Jul 4, 4:59 PM EDTSpecial Weather StatementBOXMiddlesex61 min
Jul 4, 5:45 PM EDTSpecial Weather StatementBOXEssex60 min
Jul 4, 5:53 PM EDTSpecial Marine WarningBOX67 min
Jul 4, 5:54 PM EDTSevere Thunderstorm WarningBOXEssex51 min
Jul 4, 6:28 PM EDTSpecial Marine WarningBOX62 min
Jul 4, 6:40 PM EDTAreal Flood AdvisoryBOXEssex92 min
Jul 4, 6:42 PM EDTSevere Thunderstorm WarningBOXEssex44 min
Jul 4, 6:57 PM EDTAreal Flood AdvisoryBOXWorcester53 min
Jul 4, 7:08 PM EDTSpecial Weather StatementBOXEssex52 min
Jul 4, 7:13 PM EDTFlash Flood WarningBOXEssex59 min
Jul 4, 7:46 PM EDTSpecial Marine WarningBOX31 min
Jul 4, 1:12 PM EDTSpecial Weather StatementBOXCheshire63 min
Jul 4, 2:21 PM EDTSpecial Weather StatementBOXCheshire54 min
Jul 4, 2:52 PM EDTSpecial Weather StatementBOXHillsborough53 min
Jul 4, 4:41 PM EDTSpecial Weather StatementBOXHillsborough64 min
Jul 4, 6:00 PM EDTSpecial Weather StatementBOXCheshire, Hillsborough60 min
Jul 4, 6:13 PM EDTSpecial Weather StatementBOXCheshire, Hillsborough92 min

Nearby

Special Weather Statements in Massachusetts, 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.