Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 2, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Apr 6, 2017, 6:13 PM EDT for Hampden County, Worcester County, Massachusetts; Northeastern Connecticut Planning Region, Connecticut; Providence County, Rhode Island. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 6, 2017, 6:13 PM EDT (22:13 UTC)
- Expired
- Apr 6, 2017, 6:45 PM EDT
- In force
- 32 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Northeastern Connecticut Planning Region, CT, Hampden County, MA, Worcester County, MA, Providence County, RI
The radar
The Boston radar (KBOX), 72 km from the middle of the area, began a volume at 22:13 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.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.2 hours before the alert went out and 127 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
- 8 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 428 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 407 m²/s²
- 0-3 km storm-relative helicity
- 569 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
907
WUUS51 KBOX 062213
SVRBOX
CTC013-015-MAC013-027-RIC007-062245-
/O.NEW.KBOX.SV.W.0002.170406T2213Z-170406T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Taunton MA
613 PM EDT THU APR 6 2017
The National Weather Service in Taunton has issued a
* Severe Thunderstorm Warning for...
Windham County in northern Connecticut...
Northeastern Tolland County in northern Connecticut...
Southern Worcester County in central Massachusetts...
Southeastern Hampden County in western Massachusetts...
Western Providence County in Rhode Island...
* Until 645 PM EDT
* At 613 PM EDT, a severe thunderstorm was located over Scotland, or
near Windham, moving north at 85 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Mansfield, Windham, Plainfield, Grafton, Willimantic, Killingly,
Webster, Southbridge, Auburn, Burrillville, Northbridge, Tolland,
Oxford, Uxbridge, Millbury, Charlton, Coventry, Palmer, Stafford
and Spencer.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4166 7213 4166 7216 4171 7224 4171 7225
4173 7230 4223 7230 4221 7160 4219 7157
4172 7176 4172 7179 4167 7178 4164 7180
4164 7190
TIME...MOT...LOC 2213Z 187DEG 72KT 4173 7207
HAIL...0.88IN
WIND...60MPH
$$
Sipprell2 follow-up statements
523
WWUS51 KBOX 062228
SVSBOX
Severe Weather Statement
National Weather Service Taunton MA
628 PM EDT THU APR 6 2017
RIC007-062237-
/O.CAN.KBOX.SV.W.0002.000000T0000Z-170406T2245Z/
Providence RI-
628 PM EDT THU APR 6 2017
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN PROVIDENCE COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4223 7230 4221 7168 4201 7180 4176 7179
4190 7230
TIME...MOT...LOC 2227Z 187DEG 72KT 4202 7202
$$
CTC013-015-MAC013-027-062245-
/O.CON.KBOX.SV.W.0002.000000T0000Z-170406T2245Z/
Windham CT-Tolland CT-Worcester MA-Hampden MA-
628 PM EDT THU APR 6 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHERN WINDHAM...NORTHEASTERN TOLLAND...SOUTHWESTERN WORCESTER
AND SOUTHEASTERN HAMPDEN COUNTIES...
At 627 PM EDT, a severe thunderstorm was located near Southbridge, or
18 miles northeast of Mansfield, moving north at 85 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Grafton, Killingly, Webster, Southbridge, Auburn, Oxford, Millbury,
Charlton, Palmer, Stafford, Spencer, Dudley, Leicester, Putnam,
Thompson, Sturbridge, Sutton, Monson, Douglas and Brooklyn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4223 7230 4221 7168 4201 7180 4176 7179
4190 7230
TIME...MOT...LOC 2227Z 187DEG 72KT 4202 7202
HAIL...0.75IN
WIND...60MPH
$$
Sipprell352
WWUS51 KBOX 062236
SVSBOX
Severe Weather Statement
National Weather Service Taunton MA
636 PM EDT THU APR 6 2017
CTC013-015-MAC013-027-062246-
/O.EXP.KBOX.SV.W.0002.000000T0000Z-170406T2245Z/
Windham CT-Tolland CT-Worcester MA-Hampden MA-
636 PM EDT THU APR 6 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WINDHAM...
NORTHEASTERN TOLLAND...SOUTHWESTERN WORCESTER AND SOUTHEASTERN
HAMPDEN COUNTIES WILL EXPIRE AT 645 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning will be allowed to expire. However gusty winds
and heavy rain are still possible with this thunderstorm.
LAT...LON 4223 7230 4221 7168 4201 7180 4176 7179
4190 7230
TIME...MOT...LOC 2236Z 187DEG 72KT 4218 7199
$$
SipprellThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 3:21 AM EDT | Gale Warning | BOX | 22 hr | |
| Apr 6, 3:21 AM EDT | Small Craft Advisory | BOX | 22 hr | |
| Apr 6, 3:37 AM EDT | Coastal Flood Statement | BOX | Bristol, Plymouth | 16 hr |
| Apr 6, 4:53 PM EDT | Areal Flood Warning | BOX | Essex, Middlesex | 4 hr |
| Apr 6, 6:07 PM EDT | Special Weather Statement | BOX | Hampden | 23 min |
| Apr 6, 6:14 PM EDT | Dense Fog Advisory | BOX | Barnstable, Bristol, Dukes, Nantucket, Plymouth | 4 hr |
| Apr 6, 7:26 PM EDT | Special Weather Statement | BOX | Bristol, Plymouth | 34 min |
| Apr 6, 12:34 PM EDT | River Flood Warning | BOX | Capitol Planning Region, Lower Connecticut River Valley Planning Region | 4 days |
| Apr 6, 12:34 PM EDT | River Flood Warning | BOX | Lower Connecticut River Valley Planning Region | 4 days |
| Apr 6, 5:36 PM EDT | Special Weather Statement | BOX | 24 min | |
| Apr 6, 5:49 PM EDT | Special Weather Statement | BOX | 41 min | |
| Apr 6, 6:05 PM EDT | Areal Flood Warning | BOX | Capitol Planning Region | 3 hr |
| Apr 6, 12:34 PM EDT | River Flood Warning | BOX | Washington | 61 hr |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2017Severe Thunderstorm Warnings in Connecticut, 2017Severe Thunderstorm Warnings in Rhode Island, 2017Every severe thunderstorm warning in 2017
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; radar from the NEXRAD Level II archive.