Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 17, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 7, 1986, 7:35 PM EDT for Plymouth County, Massachusetts. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Aug 7, 1986, 7:35 PM EDT (23:35 UTC)
- Expired
- Aug 7, 1986, 8:30 PM EDT
- In force
- 55 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Plymouth County, MA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Chatham, MA (KCHH), launched 12:00Z, 11.6 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.
- Mixed-layer CAPE
- 8 J/kg
- Mixed-layer CIN
- -244 J/kg
- Mixed-layer LCL
- 1119 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 30 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 072335
SVRBOS
MAC023-080030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE BOSTON MA
735 PM EDT THU AUG 7 1986
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND
SPECIAL MARINE WARNING EFFECTIVE UNTIL 830 PM EDT FOR PEOPLE IN THE
FOLLOWING COUNTY OF
SOUTHEAST MASSACHUSETTS...NORTHERN PLYMOUTH
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTY JUST MENTIONED
AT 730 PM NATIONAL WEATHER SERVICE RADAR SHOWED SEVERE
THUNDERSTORMS OVER SOUTHEASTERN MASSACHUSSETTS FROM THE
TAUNTON AREA EAST TO THE BRIDGEWATER BROCKTON AREA. THE
SEVERE THUNDERSTORMS WILL MOVE EAST ACROSS THE MARSHFIELD
PLYMOUTH AREA AND THE COAST WATERS BETWEEN 730 AND 830 PM.
THESE THUNDERSTORMS WILL BE ACCOMPANIED BY VERY HEAVY RAIN WHICH
WILL CAUSE FLOODING OF LOW LYING ROADS AND POOR DRAINAGE AREAS..
HAIL..FREQUENT LIGHTING AND STRONG GUSTY WINDS.
DILLEYWhat 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, Aug 7, 2:19 PM EDT, 5 hours 16 minutes before
^BOSSPSPVD SPECIAL WEATHER STATEMENT FOR RHODE ISLAND NATIONAL WEATHER SERVICE PROVIDENCE RI 217 PM EDT THU AUG 7 1986 ... THUNDERSTORMS WITH HAIL MOVING INTO RHODE ISLAND ... AT 210 PM EDT WORCHESTER WEATHER RADAR SHOWED EXTREMELY HEAVY THUNDERSTORMS JUST OVER THE WESTERN RHODE ISLAND BOARDER IN CONNECTICUT. SOME OF THESE THUNDERSTORMS CONTAIN HAIL AND MAY BE ACCOMPANIED BY DANGEROUS LIGHTNING..TORRENTIAL DOWNPOURS AND STRONG.. SQUALLY WINDS. THESE THUNDERSTORMS WILL BE MOVING THROUGH NORTHWESTERN RHODE ISLAND..IN THE FOSTER..GLOCESTER..BURRIVILLE AREA DURING THE NEXT HOUR. PEOPLE LIVING IN NORTHWESTERN RHODE ISLAND SHOULD REMAIN ALERT FOR THREATENING WEATHER AN TAKE COVER AS IT wAPPROACHES. CARBONE
Special weather statement, Aug 7, 2:45 PM EDT, 4 hours 50 minutes before
BOSSPSORH SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OFFICE WORCESTER MA 245 PM EDT THU AUG 7 1986 AT 240 PM EDT THE WEATHER RADAR AT WORCESTER SHOWED EXTREMELY HEAVY THUNDERSTORMS JUST ENTERING THE STATE IN A LINE FROM BRIMFIELD TO CENTRAL RHODE ISLAND. THE HEAVIEST STORMS WERE ABOUT 10 MILES SOUTHWEST OF THE CITY WORCESTER. SOME OF THESE THUNDERSTORMS CONTAIN HAIL AND MAY BE ACCOMPANIED BY DANGFEROUS LIGHTNING..TORRENTIAL DOWNPOURS AND STRONG WIND. THESE THUNDERSTORMS WILL BE MOVING THROUGH WORCESTER WITHIN THE HALF HOUR. PEOPLE IN THIS PORTION OF WORCESTER COUNTY SHOULD REMAIN ALERT FOR THREATENING WEATHER AND TAKE COVER AS IT APPROACHES. FOOSE
Special weather statement, Aug 7, 3:19 PM EDT, 4 hours 16 minutes before
^BOSSPSPVD SPECIAL WEATHER STATEMENT FOR RHODE ISLAND NATIONAL WEATHER SERVICE PROVIDENCE RI 317 PM EDT THU AUG 7 1986 ... HEAVY THUNDERSTORMS MOVING THROUGH RHODE ISLAND ... AT 310 PM EDT CHATHAM WEATHER RADAR SHOWED VERY HEAVY THUNDERSTORMS IN NORTHWESTERN RHODE ISLAND IN THE FOSTER..GLOCESTER..BURRIVILLE SECTION OF THE STATE. SOME OF THESE THUNDERSTORMS MAY CONTAIN HAIL AND MAY BE ACCOMPANIED BY TORRENTIAL DOWNPOURS CAUSING STREET AND LOWLAND FLOODING. THESE THUNDERSTORMS MAY ALSO CONTAIN DANGEROUS LIGHTNING..AND STRONG.. SQUALLY WINDS. OTHER THUNDERSTORMS CONTINUE FORMING IN SOUTHEASTERN CONNECTICUT. THEY WILL CONTINUE TO MOVE INTO NORTHWESTERN RHODE ISLAND FOR AT LEST THE NEXT HOUR OR TWO. PEOPLE LIVING IN NORTHWESTERN RHODE ISLAND SHOULD REMAIN ALERT FOR THREATENING WEATHER AND TAKE COVER AS IT APPROACHES. PEOPLE IN THE REST OF THE STATE CAN EXPECT THUNDERSTORMS TO MOVE INTO THEIR AREAS LATER THIS AFTERNOON AND EVENING. CARBONE
Special weather statement, Aug 7, 5:29 PM EDT, 2 hours 6 minutes before
^BOSSPSPVD SPECIAL WEATHER STATEMENT FOR RHODE ISLAND NATIONAL WEATHER SERVICE PROVIDENCE RI 530 PM EDT THU AUG 7 1986 ... HEAVY THUNDERSTORMS HAVE MOVED NORTHEAST OUT OF RHODE ISLAND... AT 430 PM EDT CHATHAM WEATHER RADAR SHOWED VERY HEAVY THUNDERSTORMS JUST WEST OF PROVIDENCE. THIS STORM HAS NOW MOVED INTO MASSACHUSSETTS NORTHEAST OF PROVIDENCE. THE PUBLIC REPORTED POSSIBLE TORNADO IN CUMBERLAND WITH THIS STORM. NUMEROUS MODERATE TO HEAVY ,RAIN AND THUNDERSTORMS CONTINUE IN MOST OF RHODE ISLAND AND SHOULD CONTINUE FOR THE NEXT FEW HOURS. PEOPLE LIVING IN RHODE ISLAND SHOULD REMAIN ALERT FOR THREATENING WEATHER AND TAKE COVER AS IT APPROACHES. KOWALZYK
Local storm report, Aug 7, 7:10 PM EDT, 25 minutes before
^BOSLSRPVD
STORM REPORT
NATIONAL WEATHER SERVICE PROVIDENCE RI
650 PM EDT THU AUG 7 1986
TIME DATE EVENT:
530 PM EDT AUG 7 1986 A TORNADO STRUCK DOWNTOWN
PROVIDENCE IN THE BROAD STREET
AREA.
STATE CIVIL DEFENCE REPORTED SEVERAL FIRES..MUCH DAMAGE AND INJURIES.
KOWALZYKThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 3:31 PM EDT | Tornado Warning | BOX | Essex, Middlesex | 59 min |
| Aug 7, 4:29 PM EDT | Severe Thunderstorm Warning | BOX | Norfolk, Suffolk | 61 min |
| Aug 7, 4:29 PM EDT | Severe Thunderstorm Warning | BOX | Bristol | 61 min |
| Aug 7, 5:42 PM EDT | Tornado Warning | BOX | Bristol | 58 min |
| Aug 7, 6:33 PM EDT | Severe Thunderstorm Warning | BOX | Plymouth | 57 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 1986Every severe thunderstorm warning in 1986
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.