Alert archive / Massachusetts / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 9, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at May 31, 1986, 10:00 PM EDT for Berkshire County, Massachusetts. It was in force for 105 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
- May 31, 1986, 10:00 PM EDT (02:00 UTC)
- Expired
- May 31, 1986, 11:45 PM EDT
- In force
- 105 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Berkshire 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 |
|---|---|---|---|
| May 31, 11:15 PM EDT | Hail 0.88 | Berkshire, 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
Albany, NY (KALB), launched 00:00Z, 2.0 hours before the alert went out and 62 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
- 138 J/kg
- Mixed-layer CIN
- -172 J/kg
- Mixed-layer LCL
- 972 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 211 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 KALB 010250 SVRALB MAC003-010345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ALBANY NY 1048 PM EDT SAT MAY 31 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF EXTREME WEST MASSACHUSETTS...BERKSHIRE AT 1045 PM EDT RADAR SHOWED SEVERE THUNDERSTORMS MOVING INTO BERKSHIRE COUNTY..10 MILES NORTH OF GREAT BARRINGTON. GOLFBALL SIZE HAIL FELL AT PHILMONT COLUMBIA COUNTY NY AT 1037 PM. THIS IS A DANGEROUS STORM. IF YOU/RE IN THE WARNED AREA.. ESPECIALLY BOATING ON A LAKE..MOVE TO A SAFE SHELTER FAST. BE READY FOR DAMAGING WINDS..LARGE HAIL AND LIGHTNING. IF THREATENING WEATHER APPROACHES..GO TO A SAFE PLACE RIGHT AWAY. ONCE THE STORM PASSES..CALL AND REPORT ANY SEVERE WEATHER TO YOUR NEAREST LAW ENFORCMENT PEOPLE. ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN ALBANY. LAPENTA
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, May 31, 4:44 PM EDT, 5 hours 16 minutes before
^BOSSPSPVD SPECIAL WEATHER STATEMENT FOR RHODE ISLAND NATIONAL WEATHER SERVICE PROVIDENCE RI 445 PM EDT SAT MAY 31 1986 ...THUNDERSTORMS HAVE CLEARED RHODE ISLAND... .AT 300 PM A VERY HEAVY THUNDERSTORM WITH STRONG..SQUALLY WINDS..HEAVY DOWNPOURS AND POSSIBLE HAIL DEVELOPED NORTH OF PROVIDENCE RHODE ISLAND. THIS STORM MOVED EAST INTO MASSACHUSSETTES. OTHER STORMS ARE FORMING IN EASTERN CONNECTICUT AND COULD MOVE INTO RHODE ISLAND. RHODE ISLANDERS SHOULD BE ALERT FOR TREATENING WEATHER AND TAKE SHELTER AS IT APPROACHES. MARINERS SHOULD HEAD FOR A SAFE PORT NOW AND WAIT FOR THE STORM TO PASS. TK
Special weather statement, May 31, 6:32 PM EDT, 3 hours 28 minutes before
^BOSSPSPVD SPECIAL WEATHER STATEMENT FOR RHODE ISLAND NATIONAL WEATHER SERVICE PROVIDENCE RI 635 PM EDT SAT MAY 31 1986 ...THUNDERSTORMS IN SOUTHERN RHODE ISLAND HAVE WEAKENED... .AT 635 PM THE HEAVY THUNDERSTORMS IN SOUTHWEST RHODE ISLAND HAVE WEAKENED. THERE IS STILL A CHANCE OF NEW THUNDERSTORM DEVELOPMENT WITH FREQUENT LIGHTNING, HEAVY DOWNPOURS, GUSTY WINDS AND SMALL HAIL FOR MOST OF RHODE ISLAND. RHODE ISLANDERS SHOULD BE ALERT FOR TREATENING WEATHER AND TAKE SHELTER AS IT APPROACHES. MARINERS SHOULD HEAD FOR A SAFE PORT NOW AND WAIT FOR THE STORMS TO PASS. TK
Special weather statement, May 31, 7:25 PM EDT, 2 hours 35 minutes before
^BOSSPSPVD SPECIAL WEATHER STATEMENT FOR RHODE ISLAND NATIONAL WEATHER SERVICE PROVIDENCE RI 720 PM EDT SAT MAY 31 1986 ...THUNDERSTORMS HAVE CLEARED RHODE ISLAND... .AT 720 PM THUNDERSTORMS HAD MOVED SOUTHEAST OVER RHODE ISLAND COASTAL WATERS AND WEAKENED. THIS WILL BE THE LAST ADVISORY UNLESS ACTIVITY REFORMS. TK
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.