Alert archive / Massachusetts / Special Weather Statements in 2011

Special Weather Statement, NWS Boston/Norton, MA

June 9, 2011Hampshire County, Massachusetts

NWS Boston/Norton, MA issued this special weather statement at Jun 9, 2011, 10:21 AM EDT for Hampshire County, Massachusetts. It was in force for 39 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 9, 2011, 10:21 AM EDT (14:21 UTC)
Expired
Jun 9, 2011, 11:00 AM EDT
In force
39 min
Issued by
NWS Boston/Norton, MA

County Hampshire County, MA

The radar

The Albany radar (KENX), 101 km from the middle of the area, began a volume at 14:21 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 87 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 2011-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 588 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, Albany, NY at 12:00Z on 2011-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 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
588 J/kg
Mixed-layer CIN
-266 J/kg
Mixed-layer LCL
1124 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

268 
WWUS81 KBOX 091421
SPSBOX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1021 AM EDT THU JUN 9 2011

MAZ008>011-091500-
EASTERN HAMPDEN MA-EASTERN HAMPSHIRE MA-WESTERN HAMPDEN MA-WESTERN
HAMPSHIRE MA-
1021 AM EDT THU JUN 9 2011

...STRONG THUNDERSTORM IN WESTERN MASSACHUSETTS...

AT 1020 AM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 
CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH AND PENNY SIZED HAIL
NEAR MIDDLEFIELD...OR ABOUT 18 MILES WEST OF NORTHAMPTON...MOVING 
SOUTHEAST AT 40 MPH.

THIS STORM WILL MOVE THROUGH PARTS OF HAMPSHIRE AND HAMPDEN COUNTIES 
THROUGH 11 AM.

* SOME LOCATIONS AFFECTED INCLUDE...WORTHINGTON...CHESTERFIELD...
  WESTHAMPTON...NORTHAMPTON...SOUTHAMPTON...EASTHAMPTON...HADLEY...
  HOLYOKE...SOUTH HADLEY...GRANBY...CHICOPEE AND SPRINGFIELD.

FOR YOUR SAFETY...GET INSIDE WHEN THIS STORM APPROACHES. WINDS MAY BE
STRONG ENOUGH TO BRING DOWN SMALL BRANCHES. MINOR STREET FLOODING AND
PONDING OF WATER IN POOR DRAINAGE AREAS IS ALSO POSSIBLE.

&&

LAT...LON 4239 7302 4247 7299 4231 7241 4210 7253
      4236 7307 4239 7307

$$

JWD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 8:12 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire48 min
Jun 8, 8:37 PM EDTSpecial Weather StatementBOXFranklin23 min
Jun 8, 8:56 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire, Worcester49 min
Jun 8, 9:42 PM EDTSevere Thunderstorm WarningBOXMiddlesex, Norfolk, Worcester48 min
Jun 8, 10:21 PM EDTSevere Thunderstorm WarningBOXBristol, Norfolk, Plymouth24 min
Jun 8, 10:33 PM EDTSevere Thunderstorm WarningBOXBristol, Plymouth42 min
Jun 8, 10:34 PM EDTSpecial Marine WarningBOX41 min
Jun 8, 10:41 PM EDTSpecial Marine WarningBOX49 min
Jun 8, 10:51 PM EDTSpecial Marine WarningBOX39 min
Jun 8, 10:52 PM EDTSevere Thunderstorm WarningBOXBarnstable, Bristol, Dukes, Plymouth38 min
Jun 8, 11:17 PM EDTSpecial Marine WarningBOX58 min
Jun 9, 12:19 AM EDTSpecial Marine WarningBOX41 min
Jun 9, 12:37 AM EDTSevere Thunderstorm WarningBOXHampden, Hampshire38 min
Jun 9, 1:04 AM EDTSevere Thunderstorm WarningBOXHampden, Worcester41 min
Jun 9, 1:40 AM EDTSevere Thunderstorm WarningBOXBristol50 min
Jun 9, 2:12 AM EDTSpecial Marine WarningBOX48 min
Jun 9, 2:22 AM EDTSevere Thunderstorm WarningBOXBristol, Plymouth23 min
Jun 9, 2:36 AM EDTSpecial Marine WarningBOX54 min
Jun 9, 2:42 AM EDTSevere Thunderstorm WarningBOXBarnstable, Bristol, Dukes, Plymouth27 min
Jun 9, 2:53 AM EDTSpecial Marine WarningBOX52 min
Jun 9, 8:38 AM EDTSpecial Weather StatementBOXNorfolk, Plymouth52 min
Jun 9, 10:24 AM EDTSevere Thunderstorm WarningBOXHampden, Hampshire22 min
Jun 9, 3:00 PM EDTSpecial Weather StatementBOXFranklin, Hampshire90 min
Jun 9, 3:06 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampshire54 min
Jun 9, 3:55 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampshire, Middlesex, Worcester65 min
Jun 9, 3:57 PM EDTSpecial Marine WarningBOX108 min
Jun 9, 4:00 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampden, Hampshire, Worcester60 min
Jun 9, 4:23 PM EDTSevere Thunderstorm WarningBOXEssex, Franklin, Hampshire, Middlesex, Norfolk, Suffolk and 1 more67 min
Jun 9, 4:54 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire, Middlesex, Worcester54 min
Jun 9, 5:00 PM EDTSpecial Marine WarningBOX2 hr
Jun 9, 5:24 PM EDTSevere Thunderstorm WarningBOXBarnstable, Bristol, Essex, Middlesex, Norfolk, Plymouth and 2 more66 min
Jun 9, 5:38 PM EDTSpecial Marine WarningBOX112 min
Jun 9, 5:52 PM EDTSevere Thunderstorm WarningBOXBristol53 min
Jun 9, 6:13 PM EDTSevere Thunderstorm WarningBOXBarnstable, Bristol, Plymouth62 min
Jun 9, 6:14 PM EDTSpecial Marine WarningBOX2 hr
Jun 9, 6:49 PM EDTSevere Thunderstorm WarningBOXBarnstable, Dukes, Nantucket56 min
Jun 8, 10:54 PM EDTSpecial Weather StatementBOXWashington36 min
Jun 9, 2:08 AM EDTSpecial Weather StatementBOXKent, Newport67 min
Jun 9, 6:54 AM EDTSevere Thunderstorm WarningBOXKent, Providence, Washington51 min
Jun 9, 6:39 PM EDTSpecial Weather StatementBOXWashington36 min
Jun 8, 9:23 PM EDTSpecial Weather StatementBOX22 min
Jun 9, 4:39 PM EDTSevere Thunderstorm WarningBOXCapitol Planning Region66 min
Jun 9, 4:46 PM EDTAreal Flood AdvisoryBOXCapitol Planning Region3 hr
Jun 9, 2:47 PM EDTSpecial Weather StatementBOXCheshire58 min
Jun 9, 3:03 PM EDTSevere Thunderstorm WarningBOXCheshire, Hillsborough57 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.