Alert archive / Connecticut / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 70, NWS Boston/Norton, MA

August 9, 1997Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 9, 1997, 2:51 PM EDT for Northeastern Connecticut Planning Region, Connecticut. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 9, 1997, 2:51 PM EDT (18:51 UTC)
Expired: Aug 9, 1997, 3:45 PM EDT
In force: 54 min
Issued by: NWS Boston/Norton, MA
Area: Whole counties

County Northeastern Connecticut Planning Region, CT

The radar

The Boston radar (KBOX), 71 km from the middle of the area, began a volume at 18:52 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

Brookhaven, NY (KOKX), launched 12:00Z, 6.9 hours before the alert went out and 130 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: 259 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 893 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBOS 091850 RRA
SVRBOS
CTC015-091945-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
251 PM EDT SAT AUG 9 1997
 
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  345 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST CONNECTICUT
 
   ...WINDHAM COUNTY
 
AT 250 PM RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES NORTHWEST
OF ABINGTON. THIS STORM IS MOVING SOUTH AT 15 MPH AND WILL MOVE
THROUGH PHOENIXVILLE AND CHAPLIN DURING THE NEXT 45 MINUTES.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
CZEPYHA

Nearby

Severe Thunderstorm Warnings in Connecticut, 1997 Every severe thunderstorm warning in 1997

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.