Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 2, NWS Boston/Norton, MA

May 28, 2001Franklin County, Hampshire County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at May 28, 2001, 1:05 PM EDT for Franklin County, Hampshire County, Massachusetts. It was in force for 40 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 28, 2001, 1:05 PM EDT (17:05 UTC)
Expired: May 28, 2001, 1:45 PM EDT
In force: 40 min
Issued by: NWS Boston/Norton, MA
Area: Whole counties

Counties Franklin County, MA, Hampshire County, MA

The radar

The Albany radar (KENX), 119 km from the middle of the area, began a volume at 17:12 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.

What was reported inside it

Time	Report	Where
May 28, 1:20 PM EDT	Hail 1	Worthington Corners, MA
May 28, 1:44 PM EDT	Hail 1	Ashfield, MA
May 28, 1:48 PM EDT	Hail 1.25	Conway, MA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 28, 12:30 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 5.1 hours before the alert went out and 102 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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

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

000 
WUUS51 KBOX 281705
SVRBOX
MAC011-015-281745-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
105 PM EDT MON MAY 28 2001

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL FRANKLIN COUNTY IN WESTERN MASSACHUSETTS
  NORTHWESTERN HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS

* UNTIL 145 PM EDT.

* AT 102 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES SOUTHWEST OF WORTHINGTON...OR ABOUT 14
  MILES SOUTHEAST OF PITTSFIELD...MOVING NORTHEAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING AREA INCLUDE SHELBURNE...
  CUMMINGTON...BUCKLAND AND ASHFIELD.

SEVERE THUNDERSTORMS PRODUCE LARGE HAIL AND/OR WIND STRONG ENOUGH TO
KNOCK DOWN TREES AND POWER LINES. MOVE INDOORS AND STAY AWAY FROM
WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 1:43 PM EDT	Severe Thunderstorm Warning	BOX	Franklin	32 min
May 28, 2:05 PM EDT	Severe Thunderstorm Warning	BOX	Hampshire, Worcester	40 min
May 28, 3:11 PM EDT	Severe Thunderstorm Warning	BOX	Franklin	19 min
May 28, 3:36 PM EDT	Severe Thunderstorm Warning	BOX	Franklin	9 min
May 28, 3:55 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire, Worcester	50 min
May 28, 4:03 PM EDT	Severe Thunderstorm Warning	BOX	Franklin	12 min
May 28, 4:52 PM EDT	Severe Thunderstorm Warning	BOX	Hampshire, Worcester	23 min
May 28, 5:38 PM EDT	Severe Thunderstorm Warning	BOX	Worcester	37 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2001 Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.