Alert archive / New Hampshire / Tornado Warnings in 1998

Tornado Warning 1, NWS Boston/Norton, MA

May 31, 1998Cheshire County, New Hampshire

NWS Boston/Norton, MA issued this tornado warning at May 31, 1998, 5:27 PM EDT for Cheshire County, New Hampshire. It was in force for 48 min. 5 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 31, 1998, 5:27 PM EDT (21:27 UTC)
Expired: May 31, 1998, 6:15 PM EDT
In force: 48 min
Issued by: NWS Boston/Norton, MA
Area: Whole counties

County Cheshire County, NH

The radar

The Boston radar (KBOX), 141 km from the middle of the area, began a volume at 21:29 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 31, 5:30 PM EDT	Thunderstorm Wind 50	Hinsdale, NH
May 31, 5:32 PM EDT	Thunderstorm Wind 50	Walpole, NH
May 31, 6:00 PM EDT	Thunderstorm Wind 60	Winchester, NH
May 31, 6:00 PM EDT	Thunderstorm Wind 60	Sullivan, NH
May 31, 6:05 PM EDT	Thunderstorm Wind 60	Jaffrey, NH

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

Albany, NY (KALY), launched 12:00Z, 9.5 hours before the alert went out and 131 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1673 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 188 m²/s²
0-3 km storm-relative helicity: 264 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBOS 312127 RRA
TORBOS
NHC005-312215-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
527 PM EDT SUN MAY 31 1998

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* TORNADO WARNING FOR...
  CHESHIRE COUNTY IN SOUTHWESTERN NEW HAMPSHIRE

* UNTIL 615 PM EDT

* AT 525 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A TORNADO NEAR BRATTLEBORO VERMONT... MOVING EAST NEAR 50 MPH.

* TOWNS IN OR NEAR THE PATH OF THIS TORNADO INCLUDE...
  WESTMORELAND...WALPOLE...SURREY...ALSTEAD BY 6 PM

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.

DRV/JL

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 5:49 PM EDT	Severe Thunderstorm Warning	BOX	Hillsborough	46 min
May 31, 6:00 PM EDT	Tornado Warning	BOX	Hillsborough	35 min
May 31, 7:58 PM EDT	Severe Thunderstorm Warning	BOX	Cheshire	32 min

Nearby

Tornado Warnings in New Hampshire, 1998 Every tornado warning in 1998 Tornadoes in 1998

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.