Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 15, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 7, 1986, 4:29 PM EDT for Bristol County, Massachusetts. It was in force for 61 min.
The area
The counties it named.
The facts
- Issued
- Aug 7, 1986, 4:29 PM EDT (20:29 UTC)
- Expired
- Aug 7, 1986, 5:30 PM EDT
- In force
- 61 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Bristol 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, 8.5 hours before the alert went out and 93 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 072029 SVRBOS MAC021-005-025-072130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BOSTON MA 429 PM EDT THU AUG 7 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF EXTREME EAST MASSACHUSETTS...NORFOLK...NORTHERN BRISTOL AND SUFFOLK AT 400 PM RADAR INDICATED VERY HEAVY THUNDERSTORMS..A FEW OF WHICH MAY BE SEVERE..IN THE FRANKLIN..ATTLEBORO..EAST PROVIDENCE AREA. THESE STORMS WILL MOVE NORTHEAST THROUGH THE TAUNTON ATTLEBORO WALPOLE AREA AND INTO THE BOSTON AREA BETWEEN 430 PM AND 530 PM. THIS STORM IS ACCOMPANIED BY INTENSE LIGHTNING AND STRONG GUSTY WINDS. OPTIONAL FREE FORMAT ACTION STATEMENT SCHOR
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, Aug 7, 2:19 PM EDT, 2 hours 10 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, 1 hour 44 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, 1 hour 10 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
The 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, 5:42 PM EDT | Tornado Warning | BOX | Bristol | 58 min |
| Aug 7, 6:33 PM EDT | Severe Thunderstorm Warning | BOX | Plymouth | 57 min |
| Aug 7, 7:35 PM EDT | Severe Thunderstorm Warning | BOX | Plymouth | 55 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.