Alert archive / Massachusetts / Tornado Warnings in 2000

Tornado Warning 3, NWS Boston/Norton, MA

August 10, 2000Bristol County, Norfolk County, Massachusetts

NWS Boston/Norton, MA issued this tornado warning at Aug 10, 2000, 3:17 AM EDT for Bristol County, Norfolk County, Massachusetts. It was in force for 28 min. 4 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: Aug 10, 2000, 3:17 AM EDT (07:17 UTC)
Expired: Aug 10, 2000, 3:45 AM EDT
In force: 28 min
Issued by: NWS Boston/Norton, MA
Area: Whole counties

Counties Bristol County, MA, Norfolk County, MA

The radar

The Boston radar (KBOX), 1 km from the middle of the area, began a volume at 07:18 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
Aug 10, 3:35 AM EDT	Hail 0.75	Wrentham, MA
Aug 10, 3:40 AM EDT	Thunderstorm Wind 50 E	Walpole, MA
Aug 10, 3:45 AM EDT	Hail 1.75	Norton, MA
Aug 10, 3:55 AM EDT	Thunderstorm Wind 50 E	Easton Center, 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 nearest sounding before it

Chatham, MA (KCHH), launched 00:00Z, 7.3 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: 778 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 639 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 107 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

000 
WFUS51 KBOX 100718
TORBOS

MAC005-021-RIC007-100745-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
317 AM EDT THU AUG 10 2000

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN PROVIDENCE COUNTY IN RHODE ISLAND
    INCLUDING WOONSOCKET
  SOUTHWESTERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS
  NORTHWESTERN BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS 
    INCLUDING ATTLEBOROUGH...NORTH ATTLEBOROUGH...TAUNTON

* UNTIL 345 AM EDT.

* AT 313 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A SEVERE THUNDERSTORM WITH A DEVELOPING TORNADO OVER  
  GLOCESTER...OR ABOUT 11 MILES EAST OF PUTNAM...MOVING EAST AT 50 
  MPH.

* OTHER LOCATIONS IN THE WARNING AREA INCLUDE SMITHFIELD...
  PAWTUCKET...NORTH SMITHFIELD...NORTH PROVIDENCE...LINCOLN...
  CUMBERLAND...CENTRAL FALLS...BURRILLVILLE...REHOBOTH...
  PLAINVILLE...NORTON...MANSFIELD AND FOXBOROUG%H.

THIS IS A DANGEROUS STORM - TAKE COVER NOW IN THE BASEMENT OR A SMALL
INTERIOR ROOM ON THE LOWEST FLOOR. PROTECT YOUR BODY FROM FLYING
DEBRIS WITH BLANKETS OR PILLOWS.

$$

JF/JD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 3:32 AM EDT	Tornado Warning	BOX	Bristol, Norfolk	43 min
Aug 10, 3:32 AM EDT	Tornado Warning	BOX	Plymouth	43 min

Nearby

Tornado Warnings in Massachusetts, 2000 Every tornado warning in 2000 Tornadoes in 2000

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.