Alert archive / Massachusetts / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 309

May 28, 20014 states

The Storm Prediction Center issued this severe thunderstorm watch at May 28, 2001, 12:30 PM EDT for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 28, 2001, 12:30 PM EDT (16:30 UTC)
Expired
May 28, 2001, 6:00 PM EDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Berkshire County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Norfolk County, MA, Suffolk County, MA, Worcester County, MA, Cheshire County, NH, Hillsborough County, NH, Rockingham County, NH, Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI, Bennington County, VT, Windham County, VT

Warnings issued inside it

14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 28, 1:05 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampshire40 min
May 28, 1:40 PM EDTSevere Thunderstorm WarningALYBerkshire50 min
May 28, 1:43 PM EDTSevere Thunderstorm WarningBOXFranklin32 min
May 28, 2:05 PM EDTSevere Thunderstorm WarningBOXHampshire, Worcester40 min
May 28, 2:12 PM EDTSevere Thunderstorm WarningBOXCheshire48 min
May 28, 2:56 PM EDTSevere Thunderstorm WarningBOXHillsborough49 min
May 28, 2:59 PM EDTSevere Thunderstorm WarningBOXCheshire16 min
May 28, 3:11 PM EDTSevere Thunderstorm WarningBOXFranklin19 min
May 28, 3:36 PM EDTSevere Thunderstorm WarningBOXFranklin9 min
May 28, 3:55 PM EDTSevere Thunderstorm WarningBOXHampden, Hampshire, Worcester50 min
May 28, 4:03 PM EDTSevere Thunderstorm WarningBOXFranklin12 min
May 28, 4:12 PM EDTSevere Thunderstorm WarningBOXCheshire, Hillsborough33 min
May 28, 4:52 PM EDTSevere Thunderstorm WarningBOXHampshire, Worcester23 min
May 28, 5:38 PM EDTSevere Thunderstorm WarningBOXWorcester37 min

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 4.5 hours before the alert went out and 132 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 2001-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 121 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 2001-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 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
121 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
613 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

Nearby

Severe Thunderstorm Watches in Massachusetts, 2001Severe Thunderstorm Watches in Connecticut, 2001Severe Thunderstorm Watches in Rhode Island, 2001Every severe thunderstorm watch in 2001

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.