Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 3, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Feb 22, 1997, 2:31 PM EST for Middlesex County, Massachusetts. It was in force for 59 min. 2 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
- Feb 22, 1997, 2:31 PM EST (19:31 UTC)
- Expired
- Feb 22, 1997, 3:30 PM EST
- In force
- 59 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Middlesex County, MA
The radar
The Boston radar (KBOX), 63 km from the middle of the area, began a volume at 19:34 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 | Remark |
|---|---|---|---|
| Feb 22, 2:40 PM EST | Thunderstorm Wind 52 | Shirley, MA | A gust to 60 mph was reported in Shirley. |
| Feb 22, 3:00 PM EST | Thunderstorm Wind 50 | Dracut, MA | Trees and wires were reported blown down and a chimney was knocked down in Dracut at approximately 3:00 PM. |
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 12:00Z, 7.5 hours before the alert went out and 148 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 479 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 153 m²/s²
- 0-3 km storm-relative helicity
- 208 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBOS 221933 RRA SVRBOS MAC017-222030- BULLETIN - EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 231 PM EST SAT FEB 22 1997 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 330 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN MASSACHUSETTS ...MIDDLESEX COUNTY A LINE OF SEVERE THUNDERSTORMS EXTENDS FROM FITCHBURGH SOUTHWEST TO NEAR PALMER AND IS MOVING EAST AT 40 MPH. THIS LINE WILL MOVE INTO WESTERN MIDDLESEX COUNTY AROUND 245 PM. DAMAGING WINDS AND SMALL HAIL CAN BE EXPECTED WITH THESE STORMS. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND OF AT LEAST 58 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
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 2:06 PM EST | Severe Thunderstorm Warning | BOX | Worcester | 39 min |
| Feb 22, 2:18 PM EST | Severe Thunderstorm Warning | BOX | Hampden | 22 min |
| Feb 22, 2:52 PM EST | Severe Thunderstorm Warning | BOX | Worcester | 53 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.