Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 34, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 9, 1996, 1:55 AM EDT for Dukes County, Massachusetts. It was in force for 35 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
- Jul 9, 1996, 1:55 AM EDT (05:55 UTC)
- Expired
- Jul 9, 1996, 2:30 AM EDT
- In force
- 35 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Dukes County, MA
The radar
The Boston radar (KBOX), 73 km from the middle of the area, began a volume at 05:57 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 |
|---|---|---|---|
| Jul 9, 2:10 AM EDT | Thunderstorm Wind 50 | Martha'S Vineyard, 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, 5.9 hours before the alert went out and 68 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
- 155 J/kg
- Mixed-layer CIN
- -287 J/kg
- Mixed-layer LCL
- 1069 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 102 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 090556 SVRBOS MAC007-MAZ501-090630- BULLETIN - EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE TAUNTON MA 155 AM EDT TUE JUL 9 1996 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 230 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN MASSACHUSETTS ...DUKES COUNTY AND FOR MARINE INTERESTS ON THE COASTAL WATERS SURROUNDING... ...MARTHAS VINEYARD... AT 150 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR EDGARTOWN ON MARTHAS VINEYARD. THIS STORM IS MOVING NORTHEAST AT 30 MPH. MARINERS AND RESIDENTS ON THE EASTERNMOST PORTION OF MARTHAS VINEYARD SHOULD EXPECT SQUALLY WINDS IN EXCESS OF 50 KNOTS. IF AFLOAT ON THE COASTAL WATERS...SEEK SAFE HARBOR IMMEDIATELY. DARK...THREATENING CLOUDS MAY FORETELL A SQUALL OR THUNDERSTORM WITH DEADLY LIGHTNING...STRONG GUSTY WINDS AND ROUGH WATERS. JL
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, Jul 8, 9:28 PM EDT, 4 hours 27 minutes before
MAZ002>024-CTZ002>004-RIZALL-NHZ011-012-MAZ501>504-RIZ501-502- 090230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 930 PM EDT MON JUL 8 1996 ...SEVERE THUNDERSTORM WATCH IS NO LONGER IN EFFECT IN MASSACHUSETTS AND NORTH CENTRAL CONNECTICUT... AT 930 PM...ONLY A FEW RAIN SHOWERS AND POSSIBLE THUNDERSTORMS CONTINUED ACROSS THE WESTERN HALF OF MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE. BOTH THE NUMBER AND INTENSITY OF THE SHOWERSt AND THUNDERSTORMS HAVE DIMINISHED...AND THIS TREND WILL CONTINUE THROUGH TONIGHT. AS OF 930 PM...THERE WERE NO SEVERE THUNDERSTORM WATCHES IN EFFECT ACROSS SOUTHERN NEW ENGLAND. OSIENSKY
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 2:31 AM EDT | Severe Thunderstorm Warning | BOX | Barnstable | 44 min |
| Jul 9, 6:27 PM EDT | Severe Thunderstorm Warning | BOX | Franklin | 48 min |
| Jul 9, 7:00 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 45 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 1996Every severe thunderstorm warning in 1996
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.