Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 22, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 8, 1986, 11:37 AM EDT for Middlesex County, Massachusetts. It was in force for 68 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
- Aug 8, 1986, 11:37 AM EDT (15:37 UTC)
- Expired
- Aug 8, 1986, 12:45 PM EDT
- In force
- 68 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Middlesex County, MA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 8, 12:03 PM EDT | Thunderstorm Wind 0 | Middlesex, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Chatham, MA (KCHH), launched 12:00Z, 3.6 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
- 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 081537 SVRBOS MAC017-025-081645- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BOSTON MA 1137 AM EDT FRI AUG 8 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF EXTREME EAST MASSACHUSETTS...SOUTHERN MIDDLESEX...THE CITY OF BOSTON AND SUFFOLK AT 1130 PM A SEVERE THUNDERSTORM WAS LOCATED NEAR WOONSOCKET RHODE ISLAND. IT WAS MOVING NORTHEAST AT 25 MPH. MARBLE SIZE HAIL WAS REPORTED WITH THIS STORM. RADAR ALSO INDICATES A POSSIBLE TORNADO WITH THIS STORM. THIS SLOW MOVING THUNDERSTORM MAY CAUSE FLOODING OF SMALL TREAMS AND UNDERPASSES THIS STORM IS ACCOMPANIED BY INTENSE LIGHTNING AND STRONG GUSTY WINDS. BOCCHIERI
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, 10:07 AM EDT, 1 hour 30 minutes before
^BOSSPSPVD SPECIAL WEATHER STATEMENT FOR RHODE ISLAND NATIONAL WEATHER SERVICE PROVIDENCE RI 1015 AM EDT FRI AUG 8 1986 ...HEAVY THUNDERSTORMS NOW IN SOUTHEASTERN CONNECTICUT... AT 10 AM EDT CHATHAM WEATHER RADAR SHOWED A HEAVY THUNDERSTORM IN THE NORWICH AREA OF CONNECTICUT MOVING IN A NORTHEAST DIRECTION INTO WESTERN RHODE ISLAND..WASHINGTON OR KENT COUNTIES. THIS STORM MAY BE ACCOMPANIED BY STRONG GUSTY WIND AND TORENTIAL DOUNPOURS. PEOPLE} LIVING IN THIS AREA SHOWLD REMAIN ALERT FOR THREATENING WEATHER AND TAKE COVER AS IT APPROCHES. RFS
Special weather statement, Aug 8, 10:19 AM EDT, 1 hour 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARTFORD CT 10 15 AM EDT FRI AUG 8 1986 ...HEAVY THUNDERSTORM IN SOUTHEASTERN CONNECTICUT MOVING NORTHEAST... THE NATIONAL WEATHER SERVICE RADAR AT BRADLEY INTERNATIONAL AIROPRT IN WINDSOR LOCKS CONNECTICUT OBSERVED A HEAVY THUNDERSTORM OVER MONTVILLE CONNECTICUT MOVING NORTHEAST AT 25 MPH. THIS CELL SHOULD BE IN RHODE ISLAND WITHIN THE HOUR. STATE POLICE AT MONTVILLE CONNECTICUT REPORTED VERY HEAVY DOWNPOURS AND DANGEROUS LIGHTNING. PERSONS LIVING IN THIS AREA SHOULD REMAIN ALERT FOR THREATENING WEATHER AND TAKE COVER IF NECESSARY. KONDOS
Special weather statement, Aug 8, 11:00 AM EDT, 37 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WORCESTER MA 1100 AM EDT FRI AUG 8 1986 ...THUNDERSTORM THREATENING SOUTHERN WORCESTER COUNTY... AT 1100 AM WEATHER SERVICE RADAR SHOWED AN INTENSE THUNDERSTORM IN EXTREME NORTHEASTERN CONNECTICUT MOVING TOWARDS THE NORTHEAST AT 25 MPH. THIS MOVEMENT WOULD BRING THE THUNDERSTORM INTO SOUTHERN WORCESTER COUNTY OF MASSACHUSETTS DURING THE NEXT HOUR. THE THUNDERSTORM CONTAINS VERY HEAVY RAIN WHICH COULD CAUSE SOME FLOODING OF ROADS AND POOR DRAINAGE AREAS. IT COULD ALSO BE ACCOMPANIED BY STRONG GUSTY WINDS..HAIL AND DANGEROUS LIGHTNING. RESIDENTS OF SOUTHERN WORCESTER COUNTY SHOULD BE ALERT FOR THESE CONDITIONS AND TAKE COVER IF THREATENING WEATHER APPROACHES. KEHIR
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, 3:55 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Plymouth | 65 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.