Alert archive / Massachusetts / Special Weather Statements in 2017

Special Weather Statement, NWS Boston/Norton, MA

June 27, 2017Essex County, Massachusetts

NWS Boston/Norton, MA issued this special weather statement at Jun 27, 2017, 4:43 PM EDT for Essex County, Massachusetts. It was in force for 47 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
Jun 27, 2017, 4:43 PM EDT (20:43 UTC)
Expired
Jun 27, 2017, 5:30 PM EDT
In force
47 min
Issued by
NWS Boston/Norton, MA

County Essex County, MA

The radar

The Boston radar (KBOX), 92 km from the middle of the area, began a volume at 20:43 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

Gray, ME (KGYX), launched 12:00Z, 8.7 hours before the alert went out and 138 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, Gray, ME at 12:00Z on 2017-06-27Temperature 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, Gray, ME at 12:00Z on 2017-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.1939587897117136Sfc1 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
1561 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jun 27, 4:43 PM EDT, 0 minutes earlier.

Area forecast discussion, Jun 27, 4:43 PM EDT, 0 minutes before
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Hazardous weather outlook, Jun 27, 4:16 AM EDT, 12 hours 27 minutes before
Hazardous Weather Outlook
National Weather Service Taunton MA
416 AM EDT Tue Jun 27 2017

CTZ002>004-MAZ002>024-026-RIZ001>008-280830-
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-Northwest Providence RI-
Southeast Providence RI-Western Kent RI-Eastern Kent RI-Bristol RI-
Washington RI-Newport RI-Block Island RI-
416 AM EDT Tue Jun 27 2017

This Hazardous Weather Outlook is for northern Connecticut, all of
Massachusetts except Berkshire County, and Rhode Island.

.DAY ONE...Today and Tonight.

Scattered thunderstorms will develop this afternoon with a few
strong to severe storms possible. Main risks are gusty winds and
hail.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Active weather pattern which may result in a few strong storms Friday
into Sunday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

ANZ230>237-250-251-254>256-280830-
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-
416 AM EDT Tue Jun 27 2017

This Hazardous Weather Outlook is for Massachusetts and Rhode
Island coastal waters.

.DAY ONE...Today and Tonight.

Scattered thunderstorms will develop this afternoon and may impact
near shore eastern waters. A few strong to severe storms are possible.
Main risks are gusty winds and hail.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

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

Local storm report, Jun 27, 3:47 PM EDT, 56 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
347 PM EDT TUE JUN 27 2017

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

0247 PM     HAIL             AGAWAM                  42.07N  72.62W
06/27/2017  M0.75 INCH       HAMPDEN            MA   TRAINED SPOTTER

0253 PM     HAIL             LONGMEADOW              42.05N  72.57W
06/27/2017  M0.90 INCH       HAMPDEN            MA   AMATEUR RADIO

0300 PM     HAIL             SPRINGFIELD             42.12N  72.54W
06/27/2017  M0.90 INCH       HAMPDEN            MA   TRAINED SPOTTER

0305 PM     HAIL             WILBRAHAM               42.14N  72.44W
06/27/2017  M0.90 INCH       HAMPDEN            MA   TRAINED SPOTTER

0320 PM     HAIL             WILBRAHAM               42.14N  72.44W
06/27/2017  M0.90 INCH       HAMPDEN            MA   TRAINED SPOTTER

&&

JEO
Special weather statement, Jun 27, 3:55 PM EDT, 48 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Taunton MA
355 PM EDT TUE JUN 27 2017

CTZ002-003-272100-
Hartford CT-Tolland CT-
355 PM EDT TUE JUN 27 2017

...Strong Thunderstorm in southwestern Windham...western Tolland and
Hartford Counties...

At 355 PM EDT, Doppler radar was tracking a strong thunderstorm over
Plainville, or over Southington, moving east at 25 mph.

Hail up to dime size and winds in excess of 30 mph could accompany
this storm.

Locations impacted include...
Hartford, New Britain, West Hartford, Bristol, Manchester, East
Hartford, Enfield, Southington, Glastonbury, Newington, Vernon,
Windsor, Wethersfield, Mansfield, South Windsor, Farmington, Wolcott,
Simsbury, Bloomfield and Berlin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.

These storms may intensity and become capable of producing damage.
Stay tuned for updated statements and possible warnings.

&&

LAT...LON 4203 7240 4173 7222 4172 7225 4171 7224
      4169 7227 4168 7227 4163 7250 4165 7251
      4163 7271 4161 7271 4158 7276 4156 7292
      4164 7294 4164 7296 4174 7300
TIME...MOT...LOC 1955Z 247DEG 22KT 4164 7285

md
Local storm report, Jun 27, 3:59 PM EDT, 44 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
359 PM EDT TUE JUN 27 2017

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

0247 PM     HAIL             AGAWAM                  42.07N  72.62W
06/27/2017  M0.75 INCH       HAMPDEN            MA   TRAINED SPOTTER

0253 PM     HAIL             LONGMEADOW              42.05N  72.57W
06/27/2017  M0.90 INCH       HAMPDEN            MA   AMATEUR RADIO

0300 PM     HAIL             SPRINGFIELD             42.12N  72.54W
06/27/2017  M0.90 INCH       HAMPDEN            MA   TRAINED SPOTTER

0305 PM     HAIL             WILBRAHAM               42.14N  72.44W
06/27/2017  M0.90 INCH       HAMPDEN            MA   TRAINED SPOTTER

0320 PM     HAIL             WILBRAHAM               42.14N  72.44W
06/27/2017  M0.90 INCH       HAMPDEN            MA   TRAINED SPOTTER

0358 PM     HAIL             SPENCER                 42.24N  71.99W
06/27/2017  M0.90 INCH       WORCESTER          MA   AMATEUR RADIO

            HAIL COVERING GROUND

&&

JEO
Special weather statement, Jun 27, 4:12 PM EDT, 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Taunton MA
412 PM EDT TUE JUN 27 2017

MAZ004-005-014-026-272100-
Northwest Middlesex County MA-Central Middlesex County MA-
Northern Worcester MA-Southeast Middlesex MA-
412 PM EDT TUE JUN 27 2017

...Strong Thunderstorm in east central Worcester and central
Middlesex Counties...

At 412 PM EDT, Doppler radar was tracking strong thunderstorms over
Bolton, or 7 miles northwest of Marlborough, moving northeast at 30
mph.

Hail up to dime size hail and winds in excess of 30 mph will
accompany these storms.

Locations impacted include...
Lowell, Framingham, Waltham, Medford, Arlington, Billerica,
Marlborough, Woburn, Chelmsford, Lexington, Dracut, Tewksbury,
Burlington, Wilmington, Westford, Acton, Winchester, Hudson, Concord
and Sudbury.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.

These storms may intensity and become capable of producing damage.
Stay tuned for updated statements and possible warnings.

&&

LAT...LON 4244 7111 4233 7148 4233 7155 4231 7159
      4236 7164 4236 7168 4246 7177 4270 7136
      4270 7133
TIME...MOT...LOC 2012Z 235DEG 26KT 4244 7161

md
Local storm report, Jun 27, 4:18 PM EDT, 25 minutes before
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Special weather statement, Jun 27, 4:43 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
Jun 27, 4:03 AM EDTSmall Craft AdvisoryBOX15 hr
Jun 27, 1:40 PM EDTSpecial Weather StatementBOXWorcester50 min
Jun 27, 2:03 PM EDTSpecial Weather StatementBOXWorcester42 min
Jun 27, 2:07 PM EDTSpecial Weather StatementBOXHampden53 min
Jun 27, 2:22 PM EDTSpecial Weather StatementBOXMiddlesex53 min
Jun 27, 2:44 PM EDTSpecial Weather StatementBOXMiddlesex31 min
Jun 27, 2:49 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire, Worcester41 min
Jun 27, 3:16 PM EDTSpecial Weather StatementBOXWorcester59 min
Jun 27, 3:28 PM EDTSpecial Weather StatementBOXMiddlesex32 min
Jun 27, 3:32 PM EDTSpecial Weather StatementBOXHampden43 min
Jun 27, 3:37 PM EDTAreal Flood AdvisoryBOXMiddlesex, Worcester113 min
Jun 27, 3:39 PM EDTSevere Thunderstorm WarningBOXWorcester51 min
Jun 27, 4:12 PM EDTSpecial Weather StatementBOXMiddlesex48 min
Jun 27, 4:46 PM EDTSevere Thunderstorm WarningBOXMiddlesex29 min
Jun 27, 5:27 PM EDTSpecial Weather StatementBOXEssex33 min
Jun 27, 5:41 PM EDTSpecial Weather StatementBOXHampshire49 min
Jun 27, 5:52 PM EDTSpecial Marine WarningBOX53 min
Jun 27, 6:17 PM EDTSpecial Weather StatementBOXHampden43 min
Jun 27, 6:34 PM EDTSpecial Weather StatementBOXFranklin, Hampshire56 min
Jun 27, 6:38 PM EDTSpecial Weather StatementBOXSuffolk37 min
Jun 27, 7:10 PM EDTSevere Thunderstorm WarningBOXFranklin, Worcester33 min
Jun 27, 7:17 PM EDTSpecial Weather StatementBOXWorcester43 min
Jun 27, 7:56 PM EDTSevere Thunderstorm WarningBOXNorfolk, Worcester49 min
Jun 27, 1:34 PM EDTSpecial Weather StatementBOX41 min
Jun 27, 3:04 PM EDTSpecial Weather StatementBOX41 min
Jun 27, 3:55 PM EDTSpecial Weather StatementBOX65 min
Jun 27, 4:53 PM EDTSpecial Weather StatementBOX67 min
Jun 27, 5:50 PM EDTSpecial Weather StatementBOX40 min
Jun 27, 6:05 PM EDTSpecial Weather StatementBOX55 min
Jun 27, 6:43 PM EDTSpecial Weather StatementBOX47 min
Jun 27, 7:16 PM EDTSevere Thunderstorm WarningBOXNortheastern Connecticut Planning Region44 min

Nearby

Special Weather Statements in Massachusetts, 2017Every special weather statement in 2017

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.