Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 16, NWS Boston/Norton, MA

June 22, 1997Plymouth County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 22, 1997, 4:00 PM EDT for Plymouth County, Massachusetts. It was in force for 60 min. 1 report 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
Jun 22, 1997, 4:00 PM EDT (20:00 UTC)
Expired
Jun 22, 1997, 5:00 PM EDT
In force
60 min
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Plymouth County, MA

The radar

The Boston radar (KBOX), 33 km from the middle of the area, began a volume at 20:03 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

TimeReportWhereRemark
Jun 22, 5:00 PM EDTThunderstorm Wind 50Duxbury, 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.

IssuedProductOfficeLasted
Jun 22, 2:00 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 8.0 hours before the alert went out and 73 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, Chatham, MA at 12:00Z on 1997-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 12:00Z on 1997-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 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
44 J/kg
Mixed-layer CIN
-202 J/kg
Mixed-layer LCL
897 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

893 
WUUS1 KBOS 221959 RRA
SVRBOS
MAC023-222100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
400 PM EDT SUN JUN 22 1997
 
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  500 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST MASSACHUSETTS
 
   ...PLYMOUTH COUNTY
 
AND THE ADJACENT COASTAL WATERS.
 
 
AT 358 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS MOVING EAST AT 30 MPH INTO PLYMOUTH COUNTY.
 
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
DONT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
LJC/DCY

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 22, 10:30 AM EDT, 5 hours 30 minutes before
MAZ002>024-MAZ501>504-RIZALL-RIZ501>502-CTZ002>004-NHZ011>012-
230000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1030 AM EDT SUN JUN 22 1997

...THUNDERSTORMS WITH DAMAGING WINDS ARE POSSIBLE THIS AFTERNOON
AND EVENING...

HAZY...HOT AND HUMID WEATHER WILL SET THE STAGE FOR THUNDERSTORMS
ACROSS MASSACHUSETTS...RHODE ISLAND...NORTH CENTRAL AND NORTHEAST
CONNECTICUT AND SOUTHERN NEW HAMPSHIRE THIS AFTERNOON AND EVENING.
ANY THUNDERSTORMS WILL BE CAPABLE OF BECOMING SEVERE...PRODUCING
DAMAGING WINDS OF 58 MPH OR GREATER.  LOCALLY TORRENTIAL DOWNPOURS
ARE POSSIBLE ALONG WITH SOME HAIL...BUT THE PRIMARY THREAT WILL BE
FROM DAMAGING WINDS.

THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS FAR WESTERN SECTIONS
DURING THE EARLY AFTERNOON...SPREADING EAST ACROSS THE REMAINDER
OF THE AREA DURING THE MID AFTERNOON AND EVENING.  PEOPLE PLANNING
OUTDOOR ACTIVITIES SHOULD KEEP AN EYE TO THE SKY AS THE AFTERNOON
PROGRESSES...AND REALIZE THAT PLANS MAY NEED TO BE CUT SHORT
SHOULD THUNDERSTORMS MOVE IN.  MARINE INTERESTS SHOULD BE READY TO
HEAD BACK TO SAFE HARBOR SHOULD THUNDERSTORMS APPROACH.

STAY TUNED TO NOAA WEATHER RADIO OR YOU FAVORITE RADIO OR
TELEVISION STATION FOR THE LATEST FORECASTS AND POSSIBLE SEVERE
THUNDERSTORM WATCHES THIS AFTERNOON.

CZEPYHA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 5:14 PM EDTSevere Thunderstorm WarningBOXBristol61 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 1997Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.