Alert archive / Massachusetts / Tornado Warnings in 2023
Tornado Warning 16, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this tornado warning at Sep 13, 2023, 5:12 PM EDT for Bristol County, Norfolk County, Plymouth County, Massachusetts; Providence County, Rhode Island. It was in force for 33 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
- Sep 13, 2023, 5:12 PM EDT (21:12 UTC)
- Expired
- Sep 13, 2023, 5:45 PM EDT
- In force
- 33 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Bristol County, MA, Norfolk County, MA, Plymouth County, MA, Providence County, RI
The radar
The Boston radar (KBOX), 12 km from the middle of the area, began a volume at 21:15 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 |
|---|---|---|---|
| Sep 13, 5:30 PM EDT | TSTM WND DMG | North Attleboro, MA | 6 inch wide tree split down the middle/knocked over in North Attleborough. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 9.2 hours before the alert went out and 194 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
- 488 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 876 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.2
The text
As transmitted.
709
WFUS51 KBOX 132112
TORBOX
MAC005-021-023-RIC007-132145-
/O.NEW.KBOX.TO.W.0016.230913T2112Z-230913T2145Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Boston/Norton MA
512 PM EDT Wed Sep 13 2023
The National Weather Service in Boston/Norton has issued a
* Tornado Warning for...
Southern Norfolk County in eastern Massachusetts...
West central Plymouth County in southeastern Massachusetts...
Northwestern Bristol County in southeastern Massachusetts...
Northeastern Providence County in Rhode Island...
* Until 545 PM EDT.
* At 512 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Cumberland, moving east at 20 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Cumberland, Franklin, North Attleborough, Attleboro, Mansfield,
Norton, Foxborough, Wrentham, and Plainville around 520 PM EDT.
Norfolk around 525 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4221 7095 4196 7088 4190 7149 4201 7153
TIME...MOT...LOC 2112Z 249DEG 19KT 4195 7143
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Loconto2 follow-up statements
363
WWUS51 KBOX 132128
SVSBOX
Severe Weather Statement
National Weather Service Boston/Norton MA
528 PM EDT Wed Sep 13 2023
RIC007-132138-
/O.CAN.KBOX.TO.W.0016.000000T0000Z-230913T2145Z/
Providence RI-
528 PM EDT Wed Sep 13 2023
...THE TORNADO WARNING FOR NORTHEASTERN PROVIDENCE COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
LAT...LON 4219 7101 4201 7098 4195 7136 4206 7138
4215 7112
TIME...MOT...LOC 2128Z 246DEG 19KT 4198 7135
$$
MAC005-021-023-132145-
/O.CON.KBOX.TO.W.0016.000000T0000Z-230913T2145Z/
Norfolk MA-Plymouth MA-Bristol MA-
528 PM EDT Wed Sep 13 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR
SOUTHEASTERN NORFOLK...NORTHWESTERN PLYMOUTH AND NORTHWESTERN BRISTOL
COUNTIES...
At 528 PM EDT, a severe thunderstorm capable of producing a tornado
was located over North Attleborough, moving northeast at 20 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
North Attleborough, Attleboro, Mansfield, Easton, Norton, Sharon,
Foxborough, Norfolk, Wrentham, and Plainville around 535 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4219 7101 4201 7098 4195 7136 4206 7138
4215 7112
TIME...MOT...LOC 2128Z 246DEG 19KT 4198 7135
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Loconto617
WWUS51 KBOX 132141
SVSBOX
Severe Weather Statement
National Weather Service Boston/Norton MA
541 PM EDT Wed Sep 13 2023
MAC005-021-023-132151-
/O.EXP.KBOX.TO.W.0016.000000T0000Z-230913T2145Z/
Norfolk MA-Plymouth MA-Bristol MA-
541 PM EDT Wed Sep 13 2023
...THE TORNADO WARNING FOR SOUTHEASTERN NORFOLK...NORTHWESTERN
PLYMOUTH AND NORTHWESTERN BRISTOL COUNTIES WILL EXPIRE AT 545 PM
EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire. However heavy rain
is still possible with this thunderstorm.
LAT...LON 4219 7101 4201 7098 4195 7136 4206 7138
4215 7112
TIME...MOT...LOC 2141Z 249DEG 19KT 4200 7126
$$
LocontoThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 3:20 AM EDT | Small Craft Advisory | BOX | 14 hr | |
| Sep 13, 7:50 AM EDT | Flash Flood Warning | BOX | Hampden | 4 hr |
| Sep 13, 9:23 AM EDT | Flash Flood Warning | BOX | Hampden, Hampshire, Worcester | 3 hr |
| Sep 13, 12:14 PM EDT | Flash Flood Warning | BOX | Bristol, Norfolk, Worcester | 105 min |
| Sep 13, 4:41 PM EDT | Tornado Warning | BOX | Bristol | 34 min |
| Sep 13, 5:00 PM EDT | Storm Surge Watch | BOX | Barnstable, Nantucket | 24 hr |
| Sep 13, 5:00 PM EDT | Tropical Storm Watch | BOX | Barnstable, Bristol, Dukes, Essex, Nantucket, Norfolk and 2 more | 24 hr |
| Sep 13, 5:55 PM EDT | Tornado Warning | BOX | Bristol, Norfolk | 35 min |
| Sep 13, 11:41 AM EDT | Special Weather Statement | BOX | Kent, Providence | 64 min |
| Sep 13, 4:09 PM EDT | Tornado Warning | BOX | Providence | 36 min |
| Sep 13, 5:45 PM EDT | Flash Flood Warning | BOX | Providence | 3 hr |
Nearby
Tornado Warnings in Massachusetts, 2023Tornado Warnings in Rhode Island, 2023Every tornado warning in 2023Tornadoes in 2023
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.