Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 23, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 8, 1986, 3:55 PM EDT for Bristol County, Plymouth County, Massachusetts. It was in force for 65 min.
The area
The counties it named.
The facts
- Issued
- Aug 8, 1986, 3:55 PM EDT (19:55 UTC)
- Expired
- Aug 8, 1986, 5:00 PM EDT
- In force
- 65 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
Counties Bristol County, MA, 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, 7.9 hours before the alert went out and 81 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
- 1301 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 610 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBOS 081955 SVRBOS MAC023-005-001-082100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE BOSTON MA 355 PM EDT FRI AUG 8 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 500 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTHEAST MASSACHUSETTS...EXTREME SOUTHERN PLYMOUTH...SOUTHEAST BRISTOL AND WESTERN BARNSTABLE ...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE COUNTIES JUST MENTIONED AT 4 PM, NATIONAL WEATHER SERVICE RADAR SHOWED SEVERE THUNDERSTORMS IN THE NEW BEDFORD AREA IN SOUTHEASTERN MASSACHUSETTS. THE SEVERE THUNDERSTORMS WILL MOVE EAST ACROSS BUZZARDS BAY AND WESTERN CAPE COD BETWEEN 4 AND 5 PM. THE THUNDERSTORMS WILL HAVE VERY HEAVY RAIN AND LOCAL FLOODING..STRONG DAMAGING WINDS AND HAIL..AND THERE IS A POSSIBILITY OF A TORNADO FROM THESE STORMS.
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 8, 1:34 PM EDT, 2 hours 21 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARTFORD CT 110 PM EDT FRI AUG 8 1986 ...THUNDERSTORMS CONTINUE TO GENERATE OVER SOUTHEASTERN CONNECTICUT... AT 100 PM NATIONAL WEATHER SERVICE RADAR HAD THUNDERSTORMS ACCOMPANIED BY HEAVY DOWNPOURS AND FREQUENT LIGHTNING REDEVELOPING THROUGHOUT NEW LONDON COUNTY AND MOVING NORTHEAST AT 25 MPH INTO SOUTH CENTRAL RHODE ISLAND. STATE AND LOCAL LAW ENFORCEMENT AGENCIES IN NEW LONDON COUNTY HAVE REPORTED AND DAMAGING WINDS SO FAR. AS OF 115 PM UNCONFIRMED TORNADOES HAVE BEEN REPORTED IN WOONSOCKET RI... FRANKLIN,MA AND PLUM ISLAND OFF THE NORTH FORK OF LONG ISLAND. PERSONS SHOULD REMAIN ALERT FOR ADDITIONAL THREATENING WEATHER THIS AGFTERNOON AND THIS EVENING AND TAKE COVER AS NECESSARY. LARO
Special weather statement, Aug 8, 1:59 PM EDT, 1 hour 56 minutes before
^BOSSPSPVD SPECIAL WEATHER STATEMENT FOR RHODE ISLAND NATIONAL WEATHER SERVICE PROVIDENCE RI 200 PM EDT FRI AUG 8 1986 ...HEAVY THUNDERSTORMS NOW IN SOUTHEASTERN CONNECTICUT... AT 2 PM EDT CHATHAM WEATHER RADAR SHOWED A HEAVY THUNDERSTORM IN THE NORWICH..NEW LONDON AREA OF CONNECTICUT MOVING IN EAST INTO RHODE ISLAND..WASHINGTON OR KENT COUNTIES. THIS STORM MAY BE ACCOMPANIED BY STRONG GUSTY WIND..HAIL AND TORENTIAL DOUNPOURS THAT MAY CAUSE S\OME STREET AND URBAN FLOODING. PEOPLE LIVING IN THIS AREA SHOWLD REMAIN ALERT FOR THREATENING WEATHER AND TAKE COVER AS IT APPROCHES. RFS
Special weather statement, Aug 8, 2:09 PM EDT, 1 hour 46 minutes before
SPECIAL WEATHER STATEMENT FOR MASSACHUSETTS NATIONAL WEATHER SERVICE BOSTON MA 210 PM EDT FRI AUG 8 1986 ...A TORNADO WATCH IS IN EFFECT UNTIL 9 PM FOR ALL OF MASSACHUSETTS EXCEPT CAPE COD... AT 2 PM NATIONAL WEATHER SERVICE RADAR SHOWED A BAND OF VERY HEAVY THUNDERSTORMS STRETCHING FROM SOUTHERN AND CENTRAL RHODE ISLAND TO SOUTHEASTERN CONNECTICUT. THESE THUNDERSTORMS WILL MOVE EAST ACROSS BRISTOL AND PLYMOUTH COUNTIES IN SOUTHEASTERN MASSACHUSETTS BETWEEN 215 PM AND 330 PM. THESE THUNDERSTORMS WILL BE ACCOMPANIED BY GUSTY WINDS..FREQUENT LIGHTNING AND HEAVY RAINS WHICH WILL CAUSE LOCALIZED FLOODING OF LOW LYING STREETS AND UNDERPASSES AND POOR DRAINAGE AREAS. ANOTHER VERY STRONG THUNDERSTORM WAS LOCATED NEAR MARTHAS VINYARD AT 2 PM. THIS THUNDERSTORM WILL MOVE ACROSS THE ISLANDS AND BRUSH CAPE COD BETWEEN 215 PM AND 330 PM. THIS THUNDERSTORM IS ALSO ACCOMPANIED BY VERY HEAVY RAIN AND FREQUENT LIGHTNING. STAY TUNED TOb YOUR LOCAL RADIO AND TV STATIONS FOR POSSIBLE WARNINGS BY THE NATIONAL WEATHER SERVICE. THE NEXT STATEMENT WILL BE ISSUED AROUND 315 PM OR EARLIER IF NEEDED. DILLEY
Special weather statement, Aug 8, 2:20 PM EDT, 1 hour 35 minutes before
^BOSSPSPVD SPECIAL WEATHER STATEMENT FOR RHODE ISLAND NATIONAL WEATHER SERVICE PROVIDENCE RI 215 PM EDT FRI AUG 8 1986 ...A TORNADO WATCH IS IN EFFECT UNTIL 9 PM FOR ALL OF RHODE ISLAND... AT 2 PM EDT NATIONAL WEATHER RADAR SHOWED A BAND OF VERY HEAVY THUNDERSTORMS STRETCHING FRON SOUTHEASTERN CONNECTICUT INTO RHODE ISLAND. THESE THUNDERSTORMS WILL MOVE EAST ACROSS THE STATE BETWEEN 2PM AND 4PM. THESE THUNDRSTORMS WILL BE ACCOMPANIED BY GUSTY WIND..FREQUENT LIGHTNING AND HEAVY RAINS WHICH WILL CAUSE LOCALIZED FLOODING OF LOW LYING STREETS AND UNDERPASSES WITH POOR DRAINAGE AREAS. STAY TUNED TO YOUR LOCAL RAIDO AND TV STATION FOR POSSIBLE WARNINGS BY THE NATIONAL WEATHER SERVISE. jRFS
Special weather statement, Aug 8, 3:20 PM EDT, 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARTFORD CT 315 PM EDT FRI AUG 8 1986 ...THUNDERSTORMS CONTINUE TO DEVELOP THROUGHOUT CONNECTICUT... AT 3 PM EDT THUNDERSTORMS HAVE REDEVELOPED IN THE SOUND SOUTH OF THE BRIDGEPORT...NEW HAVEN AREA. ANOTHER HEAVY THUNDERSTORM JUST NORTH OF WINDSOR LOCKS. NUMEROUS SMALLER CELLS ARE ALSO BLANKETING EASTERN EASTERN CONNECTICUT. THESE THUNDERSTORMS ARE MOVING TO THE NORTHEAST AT 35 MPH. THESE STORMS ARE PRODUCING HEAVY DOWNPOURS WHICH WILL QUICKLY FLOOD UNDERPASSES AND LOW LYING ROADWAYS WHICH COULD CAUSE HAZARDOUS DRIVING FOR COMMUTERS. REMEMBER...A TORNADO WATCH IS AN ALERT...CONDITIONS ARE FAVORABLE THROUGHOUT THE AREA FOR THE DEVELOPMENT OF TORNADOES AND SEVERE THUNDER- STORMS. ANOTHER STATEMENT WILL BE ISSUED BY 500 PM EDT OR EARLIER IF NECESSARY. LARO
Special weather statement, Aug 8, 3:22 PM EDT, 33 minutes before
SPECIAL WEATHER STATEMENT FOR MASSACHUSETTS NATIONAL WEATHER SERVICE BOSTON MA 325 PM EDT FRI AUG 8 1986 ...A TORNADO WATCH IS IN EFFECT UNTIL 9 PM FOR ALL OF MASSACHUSETTS EXCEPT CAPE COD... AT 3 PM NATIONAL WEATHER SERVICE RADAR SHOWED A BAND OF VERY HEAVY THUNDERSTORMS ENTERING THE FALL RIVER AND NEW BEDFORD AREA IN SOUTHEASTERN MASSACHUSETTS. THESE SLOW MOVING THUNDERSTORMS WILL LIKELY CAUSE URBAN POOR DRAINAGE FLOODING BETWEEN 330 PM AND 430 PM. THE THUNDERSTORMS WILL THEN CONTINUE EAST INTO THE PLYMOUTH COUNTY. THESE THUNDERSTORMS WILL ALSO BE ACCOMPANIED BY FREQUENT VIVID T LIGHTNING AND GUSTY WINDS. ALSO AT 3 PM..RADAR SHOWED THUNDERSTORMS DEVELOPING JUST WEST OF LOWELL ALONG THE NEW HAMPSHIRE BORDER. THESE THUNDERSTORMS WILL ALSO HAVE BRIEF HEAVY RAINS..GUSTY WINDS AND POSSIBLY SOME HAIL AS THEY MOVE ACROSS THE LOWELL LAWRENCE AREA BETWEEN 330 AND 5 PM. STAY TUNED TO YOUR LOCAL RADIO AND TV STATIONS FOR POSSIBLE WARNINGS BY THE NATIONAL WEATHER SERVICE. THE NEXT STATEMENT WILL BE ISSUED AROUND 415 PM OR EARLIER IF NEEDED. DILLEY
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 11:00 AM EDT | Severe Thunderstorm Warning | BOX | Worcester | 60 min |
| Aug 8, 11:18 AM EDT | Severe Thunderstorm Warning | BOX | Norfolk | 72 min |
| Aug 8, 11:37 AM EDT | Severe Thunderstorm Warning | BOX | Middlesex | 68 min |
| Aug 8, 3:55 PM EDT | Severe Thunderstorm Warning | BOX | Barnstable | 65 min |
| Aug 8, 4:24 PM EDT | Tornado Warning | BOX | Middlesex | 66 min |
| Aug 8, 4:30 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 60 min |
| Aug 8, 5:02 PM EDT | Tornado Warning | BOX | Essex | 58 min |
| Aug 8, 5:30 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 60 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.