Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 4, NWS Boston/Norton, MA

February 25, 20165 counties in Massachusetts; Capitol Planning Region, Connecticut

NWS Boston/Norton, MA issued this severe thunderstorm warning at Feb 25, 2016, 12:58 AM EST for 5 counties in Massachusetts; Capitol Planning Region, Connecticut. It was in force for 62 min. 31 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Feb 25, 2016, 12:58 AM EST (05:58 UTC)
Expired: Feb 25, 2016, 2:00 AM EST
In force: 62 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon

Counties Capitol Planning Region, CT, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Worcester County, MA

The radar

The Brookhaven radar (KOKX), 107 km from the middle of the area, began a volume at 05:57 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Feb 25, 12:59 AM EST	TSTM WND DMG	Ludlow, MA	SEVERAL TREES DOWN...TREE LIMB DOWN ON A HOUSE ON HOLYOKE STREET.
Feb 25, 1:02 AM EST	TSTM WND GST 68	3 Se Hartford, CT
Feb 25, 1:03 AM EST	HIGH SUST WINDS 44	3 Se Hartford, CT	HFD ASOS
Feb 25, 1:03 AM EST	TSTM WND GST 68	3 Se Hartford, CT
Feb 25, 1:05 AM EST	TSTM WND DMG	South Windsor, CT	TREES AND WIRES DOWN THROUGHOUT TOWN INCLUDING ROAD CLOSURES ON ELLINGTON ROAD BETWEEN PIERCE ROAD AND DEMING STREET AND NIEDERWERFER ROAD AT THE EAST WINDSOR TOWN LINE. POWER LINES DOWN.
Feb 25, 1:09 AM EST	TSTM WND DMG	Monson, MA	TREE DOWN ON COTE ROAD.
Feb 25, 1:10 AM EST	TSTM WND DMG	Hampden, MA	TREE DOWN ON SOMERS ROAD.
Feb 25, 1:10 AM EST	TSTM WND DMG	Palmer, MA	TREE DOWN.
Feb 25, 1:10 AM EST	TSTM WND DMG	Wilbraham, MA	TREE DOWN.
Feb 25, 1:13 AM EST	TSTM WND DMG	Hartford, CT	POWER LINES DOWN ON NEWBURY STREET. LARGE LIMB DOWN ON WIRES ON GRANDVIEW TERRACE.
Feb 25, 1:14 AM EST	TSTM WND DMG	Hampden, MA	LARGE LIMB DOWN ON MILL STREET.
Feb 25, 1:15 AM EST	TSTM WND DMG	Wilbraham, MA	TREE DOWN ON LEE LANE.
Feb 25, 1:16 AM EST	NON-TSTM WND GST 65	Ware, MA	HAM RADIO
Feb 25, 1:17 AM EST	TSTM WND DMG	Hartford, CT	TREE DOWN ON POWER LINES. TREES AND WIRES DOWN ON HUBBARD ROAD.
Feb 25, 1:23 AM EST	TSTM WND DMG	Glastonbury, CT	TREE DOWN ON HOUSE ON CRESTDALE ROAD.
Feb 25, 1:23 AM EST	TSTM WND GST 75	South Glastonbury, CT
Feb 25, 1:25 AM EST	TSTM WND DMG	Andover, CT	TREE AND WIRES DOWN.
Feb 25, 1:25 AM EST	TSTM WND DMG	Hebron, CT	TREE AND WIRES DOWN ON FOREST VALLEY ROAD.
Feb 25, 1:29 AM EST	TSTM WND DMG	Coventry, CT	WIRES DOWN ON STONE HOUSE ROAD AT OLD EAGLEVILLE ROAD.
Feb 25, 1:30 AM EST	TSTM WND DMG	Enfield, CT	MULTIPLE LARGE BRANCHES...SMALL TREES...AND WIRES DOWN IN THE EASTERN PART OF TOWN.
Feb 25, 1:35 AM EST	TSTM WND DMG	East Windsor, CT	TREES AND WIRES DOWN.
Feb 25, 1:35 AM EST	TSTM WND DMG	Stafford, CT	TREES AND WIRES DOWN.
Feb 25, 1:35 AM EST	TSTM WND DMG	Tolland, CT	TREES AND WIRES DOWN.
Feb 25, 1:40 AM EST	TSTM WND DMG	Tolland, CT	POWER LINES DOWN ON ANTHONY ROAD BETWEEN VIRGINIA LANE AND RHODES ROAD.
Feb 25, 1:42 AM EST	TSTM WND DMG	Glastonbury, CT	TREE AND WIRES DOWN ON GRIST MILL ROAD AT ROUTE 83.
Feb 25, 1:48 AM EST	TSTM WND DMG	Monson, MA	TREE DOWN ON STAFFORD ROAD.
Feb 25, 1:50 AM EST	TSTM WND DMG	West Brookfield, MA	TREE DOWN NEAR THE STATE POLICE ACADEMY.
Feb 25, 1:52 AM EST	TSTM WND DMG	East Longmeadow, MA	ELM STREET AND MAPLE SHADE AVENUE CLOSED DUE TO TREES AND WIRES DOWN.
Feb 25, 1:55 AM EST	TSTM WND DMG	Brookfield, MA	TREE DOWN ON ROUTE 148 NEAR WHITES LANDING.
Feb 25, 2:08 AM EST	TSTM WND DMG	Monson, MA	UTILITY POLE SNAPPED ON BETHANY ROAD.
Feb 25, 2:08 AM EST	TSTM WND DMG	Monson, MA	TREE DOWN ON BETHANY ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Feb 24, 11:51 PM EST	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 6.0 hours before the alert went out and 107 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 38 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 479 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 529 m²/s²
0-3 km storm-relative helicity: 504 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

As transmitted.

861 
WUUS51 KBOX 250558
SVRBOX
CTC003-013-MAC011-013-015-017-027-250700-
/O.NEW.KBOX.SV.W.0004.160225T0558Z-160225T0700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
1258 AM EST THU FEB 25 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TOLLAND COUNTY IN NORTHERN CONNECTICUT...
  HARTFORD COUNTY IN NORTHERN CONNECTICUT...
  SOUTHEASTERN HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS...
  SOUTHEASTERN HAMPDEN COUNTY IN WESTERN MASSACHUSETTS...
  WESTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
  EASTERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...
  NORTHWESTERN MIDDLESEX COUNTY IN NORTHEASTERN MASSACHUSETTS...

* UNTIL 200 AM EST

* AT 1258 AM EST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS
  STORM WAS LOCATED OVER EAST WINDSOR...OR NEAR SOUTH WINDSOR...AND
  WAS MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SPRINGFIELD...HARTFORD...NEW BRITAIN...WEST HARTFORD...BRISTOL...
  MANCHESTER...CHICOPEE...EAST HARTFORD...ENFIELD...SOUTHINGTON...
  FITCHBURG...HOLYOKE...AMHERST...GLASTONBURY...NEWINGTON...VERNON...
  WINDSOR...AGAWAM...WEST SPRINGFIELD AND WETHERSFIELD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL. GO
INDOORS AND STAY AWAY FROM WINDOWS.  DRIVERS SHOULD PREPARE FOR LOW
VISIBILITY AND AVOID FLOODED ROADS.

THIS IS AN EXTREMELY DANGEROUS SITUATION. MOBILE HOMES AND HIGH
PROFILE VEHICLES ARE ESPECIALLY SUSCEPTIBLE TO WINDS OF THIS
MAGNITUDE AND MAY BE OVERTURNED. FOR YOUR PROTECTION MOVE
IMMEDIATELY TO A SAFE SHELTER OR TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.
THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT
PROPERTY DAMAGE.

MINOR FLOODING CAN BE EXPECTED FROM TORRENTIAL RAINFALL. DO NOT DRIVE
THROUGH FLOODED ROADS.

&&

LAT...LON 4165 7293 4272 7233 4271 7174 4201 7221
      4161 7233 4158 7246 4165 7251 4164 7266
      4155 7282 4157 7285 4155 7285 4156 7295
TIME...MOT...LOC 0558Z 208DEG 93KT 4191 7257 

$$

MD

1 follow-up statement

458 
WWUS51 KBOX 250658
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
158 AM EST THU FEB 25 2016

CTC003-013-MAC011-013-015-017-027-250707-
/O.EXP.KBOX.SV.W.0004.000000T0000Z-160225T0700Z/
TOLLAND CT-HARTFORD CT-HAMPSHIRE MA-HAMPDEN MA-WORCESTER MA-
FRANKLIN MA-MIDDLESEX MA-
158 AM EST THU FEB 25 2016

...THE SEVERE THUNDERSTORM WARNING FOR TOLLAND...HARTFORD...
SOUTHEASTERN HAMPSHIRE...SOUTHEASTERN HAMPDEN...WESTERN WORCESTER...
EASTERN FRANKLIN AND NORTHWESTERN MIDDLESEX COUNTIES WILL EXPIRE AT
200 AM EST...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4165 7293 4272 7233 4271 7174 4201 7221
      4161 7233 4158 7246 4165 7251 4164 7266
      4155 7282 4157 7285 4155 7285 4156 7295
TIME...MOT...LOC 0656Z 208DEG 93KT 4191 7257 

$$

MD

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 24, 10:13 PM EST	Special Weather Statement	BOX	Hampden	32 min
Feb 24, 10:32 PM EST	Special Weather Statement	BOX	Franklin, Hampshire	28 min
Feb 24, 11:24 PM EST	Special Weather Statement	BOX	Franklin, Hampden, Hampshire	36 min
Feb 24, 11:55 PM EST	Special Weather Statement	BOX	Franklin, Hampden, Hampshire, Worcester	50 min
Feb 25, 12:19 AM EST	Severe Thunderstorm Warning	BOX	Franklin, Hampden, Hampshire	41 min
Feb 25, 12:38 AM EST	Special Weather Statement	BOX	Hampden	52 min
Feb 25, 12:55 AM EST	Severe Thunderstorm Warning	BOX	Franklin, Hampden, Hampshire	50 min
Feb 25, 1:11 AM EST	Areal Flood Advisory	BOX	Franklin, Hampden, Hampshire, Worcester	3 hr
Feb 25, 1:25 AM EST	Areal Flood Warning	BOX	Franklin, Hampden, Hampshire	4 hr
Feb 25, 1:54 AM EST	Severe Thunderstorm Warning	BOX	Hampden	51 min
Feb 25, 1:57 AM EST	Severe Thunderstorm Warning	BOX	Hampden, Middlesex, Worcester	48 min
Feb 25, 2:40 AM EST	Severe Thunderstorm Warning	BOX	Bristol, Essex, Middlesex, Norfolk, Worcester	50 min
Feb 25, 2:56 AM EST	Special Marine Warning	BOX		64 min
Feb 25, 3:01 AM EST	Severe Thunderstorm Warning	BOX	Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk	59 min
Feb 25, 3:11 AM EST	Severe Thunderstorm Warning	BOX	Barnstable, Bristol, Norfolk, Plymouth	64 min
Feb 25, 3:52 AM EST	Severe Thunderstorm Warning	BOX	Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk	38 min
Feb 25, 4:11 AM EST	Severe Thunderstorm Warning	BOX	Barnstable, Bristol, Plymouth	49 min
Feb 25, 5:29 AM EST	Areal Flood Warning	BOX	Franklin, Hampden, Hampshire	2 hr
Feb 25, 7:26 AM EST	Areal Flood Warning	BOX	Franklin, Hampshire	2 hr
Feb 25, 8:02 AM EST	River Flood Warning	BOX	Hampden, Hampshire	17 hr
Feb 25, 2:21 PM EST	River Flood Warning	BOX	Franklin, Hampshire	44 hr
Feb 25, 2:21 PM EST	River Flood Warning	BOX	Hampden, Hampshire	62 hr
Feb 25, 2:21 PM EST	River Flood Warning	BOX	Hampden	71 hr
Feb 25, 6:53 PM EST	Small Craft Advisory	BOX		33 hr
Feb 25, 12:25 AM EST	Severe Thunderstorm Warning	BOX	Capitol Planning Region	35 min
Feb 25, 12:43 AM EST	Areal Flood Advisory	BOX	Capitol Planning Region	3 hr
Feb 25, 2:21 PM EST	River Flood Warning	BOX	Capitol Planning Region, Lower Connecticut River Valley Planning Region	4 days
Feb 25, 2:21 PM EST	River Flood Warning	BOX	Lower Connecticut River Valley Planning Region	4 days

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2016 Severe Thunderstorm Warnings in Connecticut, 2016 Every severe thunderstorm warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.