Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 26, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 7, 2016, 3:17 PM EDT for Middlesex County, Norfolk County, Worcester County, Massachusetts. It was in force for 35 min. 1 report 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
- Jul 7, 2016, 3:17 PM EDT (19:17 UTC)
- Expired
- Jul 7, 2016, 3:52 PM EDT
- In force
- 35 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Middlesex County, MA, Norfolk County, MA, Worcester County, MA
The radar
The Boston radar (KBOX), 42 km from the middle of the area, began a volume at 19:21 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 |
|---|---|---|---|
| Jul 7, 3:36 PM EDT | TSTM WND DMG | Upton, MA | TREE DOWN ON WIRES LOCKING ROAD ON ELM STREET |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Chatham, MA (KCHH), launched 12:00Z, 7.3 hours before the alert went out and 144 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
- 21 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 1358 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- -2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
845
WUUS51 KBOX 071917
SVRBOX
MAC017-021-027-072015-
/O.NEW.KBOX.SV.W.0026.160707T1917Z-160707T2015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
317 PM EDT THU JUL 7 2016
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS...
SOUTHEASTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
SOUTHWESTERN MIDDLESEX COUNTY IN NORTHEASTERN MASSACHUSETTS...
* UNTIL 415 PM EDT
* AT 316 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER DOUGLAS...OR
11 MILES SOUTHWEST OF MILFORD...MOVING NORTHEAST AT 15 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE
TO ROOFS...SIDING...AND TREES.
* LOCATIONS IMPACTED INCLUDE...
FRANKLIN...MILFORD...GRAFTON...ASHLAND...BELLINGHAM...
NORTHBRIDGE...HOPKINTON...HOLLISTON...UXBRIDGE...MEDWAY...
WRENTHAM...SOUTHBOROUGH...BLACKSTONE...SUTTON...DOUGLAS...UPTON...
HOPEDALE...MENDON AND MILLVILLE.
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 4201 7172 4214 7180 4229 7147 4205 7134
TIME...MOT...LOC 1916Z 246DEG 12KT 4208 7171
HAIL...1.00IN
WIND...60MPH
$$
DUNTEN2 follow-up statements
522
WWUS51 KBOX 071933
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
333 PM EDT THU JUL 7 2016
MAC017-021-027-072015-
/O.CON.KBOX.SV.W.0026.000000T0000Z-160707T2015Z/
NORFOLK MA-WORCESTER MA-MIDDLESEX MA-
333 PM EDT THU JUL 7 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR SOUTHWESTERN NORFOLK...SOUTHEASTERN WORCESTER AND SOUTHWESTERN
MIDDLESEX COUNTIES...
AT 332 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
NORTHBRIDGE...OR 7 MILES SOUTHWEST OF MILFORD...MOVING NORTHEAST AT
15 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
FRANKLIN...MILFORD...GRAFTON...ASHLAND...BELLINGHAM...NORTHBRIDGE...
HOPKINTON...HOLLISTON...UXBRIDGE...MEDWAY...WRENTHAM...
SOUTHBOROUGH...BLACKSTONE...SUTTON...UPTON...HOPEDALE...
MENDON AND MILLVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
TAUNTON.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4202 7162 4218 7172 4229 7147 4205 7134
TIME...MOT...LOC 1932Z 246DEG 12KT 4210 7164
HAIL...1.00IN
WIND...60MPH
$$
DUNTEN127
WWUS51 KBOX 071952
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
352 PM EDT THU JUL 7 2016
MAC017-021-027-072002-
/O.CAN.KBOX.SV.W.0026.000000T0000Z-160707T2015Z/
NORFOLK MA-WORCESTER MA-MIDDLESEX MA-
352 PM EDT THU JUL 7 2016
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN NORFOLK...
SOUTHEASTERN WORCESTER AND SOUTHWESTERN MIDDLESEX COUNTIES IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE...THE WARNING HAS BEEN CANCELLED. HOWEVER GUSTY WINDS AND
HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.
LAT...LON 4202 7162 4218 7172 4229 7147 4205 7134
TIME...MOT...LOC 1951Z 246DEG 12KT 4212 7157
$$
DUNTENThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 4:40 PM EDT | Special Weather Statement | BOX | Franklin | 50 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2016Every 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.