Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 1, NWS Boston/Norton, MA

February 25, 2016Capitol Planning Region, Connecticut; Franklin County, Hampden County, Hampshire County, Massachusetts

NWS Boston/Norton, MA issued this severe thunderstorm warning at Feb 25, 2016, 12:19 AM EST for Capitol Planning Region, Connecticut; Franklin County, Hampden County, Hampshire County, Massachusetts. It was in force for 41 min. 2 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, 12:19 AM EST (05:19 UTC)
Expired: Feb 25, 2016, 1:00 AM EST
In force: 41 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

The radar

The Albany radar (KENX), 96 km from the middle of the area, began a volume at 05:19 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, 12:54 AM EST	TSTM WND DMG	Westfield, MA	LARGE TREE DOWN ON CEMETARY NEAR WESTFIELD STATE.
Feb 25, 1:04 AM EST	TSTM WND DMG	Westfield, MA	LARGE LIMB DOWN ON EAST MOUNTAIN 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

Albany, NY (KALY), launched 00:00Z, 5.3 hours before the alert went out and 83 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 536 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 534 m²/s²
0-3 km storm-relative helicity: 635 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

775 
WUUS51 KBOX 250519
SVRBOX
CTC003-MAC011-013-015-250600-
/O.NEW.KBOX.SV.W.0001.160225T0519Z-160225T0600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
1219 AM EST THU FEB 25 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN HARTFORD COUNTY IN NORTHERN CONNECTICUT...
  HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS...
  WESTERN HAMPDEN COUNTY IN WESTERN MASSACHUSETTS...
  FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...

* UNTIL 100 AM EST

* AT 1218 AM EST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS
  STORM WAS LOCATED NEAR TOLLAND...OR 14 MILES NORTH OF TORRINGTON...
  AND WAS MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WESTFIELD...HOLYOKE...AMHERST...NORTHAMPTON...AGAWAM...WEST SPRINGFIELD...
  GREENFIELD...DEERFIELD...SIMSBURY...SOUTH HADLEY...EASTHAMPTON...
  SUFFIELD...MONROE...GRANBY...CANTON...SOUTHWICK...MONTAGUE...SOUTHAMPTON...
  HADLEY AND EAST GRANBY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS. 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 4215 7307 4215 7303 4231 7300 4233 7306
      4238 7307 4239 7301 4266 7295 4267 7300
      4270 7295 4270 7302 4273 7302 4272 7236
      4189 7278 4191 7290 4197 7289 4197 7303
      4204 7301 4204 7306 4211 7307
TIME...MOT...LOC 0518Z 205DEG 90KT 4204 7304 

$$

MD

1 follow-up statement

207 
WWUS51 KBOX 250556
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1256 AM EST THU FEB 25 2016

CTC003-MAC011-013-015-250605-
/O.EXP.KBOX.SV.W.0001.000000T0000Z-160225T0600Z/
HARTFORD CT-HAMPSHIRE MA-HAMPDEN MA-FRANKLIN MA-
1256 AM EST THU FEB 25 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN HARTFORD...
HAMPSHIRE...WESTERN HAMPDEN AND FRANKLIN COUNTIES WILL EXPIRE AT 100
AM EST...
        
A NEW SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED.

LAT...LON 4215 7307 4215 7303 4231 7300 4233 7306
      4238 7307 4239 7301 4266 7295 4267 7300
      4270 7295 4270 7302 4273 7302 4272 7236
      4189 7278 4191 7290 4197 7289 4197 7303
      4204 7301 4204 7306 4211 7307
TIME...MOT...LOC 0552Z 205DEG 90KT 4204 7304 

$$

MD

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 24, 11:24 PM EST	Special Weather Statement	BOX		36 min
Feb 24, 11:55 PM EST	Special Weather Statement	BOX		50 min
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, 12:55 AM EST	Severe Thunderstorm Warning	BOX	Capitol Planning Region	50 min
Feb 25, 12:58 AM EST	Severe Thunderstorm Warning	BOX	Capitol Planning Region	62 min
Feb 25, 1:54 AM EST	Severe Thunderstorm Warning	BOX	Capitol Planning Region, Northeastern Connecticut Planning Region	51 min
Feb 25, 2:21 PM EST	River Flood Warning	BOX	Capitol Planning Region	71 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
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 25, 12:38 AM EST	Special Weather Statement	BOX	Hampden	52 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, 1:57 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, 6:53 PM EST	Small Craft Advisory	BOX		33 hr

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.