Alert archive / Massachusetts / Tornado Warnings in 2021
Tornado Warning 22, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this tornado warning at Nov 13, 2021, 6:27 PM EST for Barnstable County, Massachusetts. It was in force for 15 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
- Nov 13, 2021, 6:27 PM EST (23:27 UTC)
- Expired
- Nov 13, 2021, 6:42 PM EST
- In force
- 15 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Barnstable County, MA
The radar
The Boston radar (KBOX), 78 km from the middle of the area, began a volume at 23:28 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 |
|---|---|---|---|
| Nov 13, 6:40 PM EST | TSTM WND DMG | Dennis, MA | 2 UTILITY POLES DOWN, A THIRD UTILITY POLE CRACKED WITH WIRES DOWN ON OLD WHARF ROAD AFTER BEATEN ROAD. ROAD IMPASSABLE. |
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, 11.5 hours before the alert went out and 236 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1435 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
416
WFUS51 KBOX 132327
TORBOX
MAC001-140000-
/O.NEW.KBOX.TO.W.0022.211113T2327Z-211114T0000Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Boston/Norton MA
627 PM EST Sat Nov 13 2021
The National Weather Service in Boston/Norton has issued a
* Tornado Warning for...
South central Barnstable County in southeastern Massachusetts...
* Until 700 PM EST.
* At 626 PM EST, a severe thunderstorm capable of producing a tornado
was located near Barnstable, moving northeast at 55 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...
Yarmouth and Dennis around 630 PM EST.
Brewster around 640 PM EST.
Other locations impacted by this tornadic thunderstorm include
Hyannis.
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 4164 7020 4163 7024 4165 7026 4164 7028
4164 7033 4171 7032 4172 7030 4173 7032
4173 7028 4172 7027 4172 7029 4171 7030
4171 7026 4175 7019 4176 7012
TIME...MOT...LOC 2326Z 228DEG 48KT 4165 7029
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Smith1 follow-up statement
859
WWUS51 KBOX 132342
SVSBOX
Severe Weather Statement
National Weather Service Boston/Norton MA
642 PM EST Sat Nov 13 2021
MAC001-132350-
/O.CAN.KBOX.TO.W.0022.000000T0000Z-211114T0000Z/
Barnstable MA-
642 PM EST Sat Nov 13 2021
...THE TORNADO WARNING FOR SOUTH CENTRAL BARNSTABLE COUNTY IS
CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
LAT...LON 4164 7020 4163 7024 4165 7026 4164 7028
4164 7033 4171 7032 4172 7030 4173 7032
4173 7028 4172 7027 4172 7029 4171 7030
4171 7026 4175 7019 4176 7012
TIME...MOT...LOC 2339Z 228DEG 48KT 4178 7010
$$
SmithThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 12, 9:39 PM EST | Gale Warning | BOX | 29 hr | |
| Nov 13, 4:09 PM EST | Severe Thunderstorm Warning | BOX | Hampden | 15 min |
| Nov 13, 4:45 PM EST | Special Marine Warning | BOX | 60 min | |
| Nov 13, 5:01 PM EST | Severe Thunderstorm Warning | BOX | Worcester | 26 min |
| Nov 13, 5:08 PM EST | Tornado Warning | BOX | Bristol | 24 min |
| Nov 13, 5:12 PM EST | Severe Thunderstorm Warning | BOX | Bristol, Plymouth | 44 min |
| Nov 13, 5:17 PM EST | Severe Thunderstorm Warning | BOX | Bristol, Middlesex, Norfolk, Plymouth, Worcester | 7 min |
| Nov 13, 5:21 PM EST | Tornado Warning | BOX | Bristol, Norfolk | 24 min |
| Nov 13, 5:22 PM EST | Special Marine Warning | BOX | 53 min | |
| Nov 13, 5:26 PM EST | Severe Thunderstorm Warning | BOX | Bristol, Middlesex, Norfolk, Plymouth, Suffolk, Worcester | 32 min |
| Nov 13, 5:45 PM EST | Special Weather Statement | BOX | Bristol, Plymouth | 45 min |
| Nov 13, 5:45 PM EST | Severe Thunderstorm Warning | BOX | Barnstable, Dukes, Plymouth | 60 min |
| Nov 13, 5:47 PM EST | Tornado Warning | BOX | Dukes | 28 min |
| Nov 13, 5:55 PM EST | Severe Thunderstorm Warning | BOX | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk | 25 min |
| Nov 13, 6:02 PM EST | Special Marine Warning | BOX | 58 min | |
| Nov 13, 6:07 PM EST | Tornado Warning | BOX | Barnstable, Dukes | 23 min |
| Nov 13, 6:13 PM EST | Special Marine Warning | BOX | 92 min | |
| Nov 13, 6:49 PM EST | Special Weather Statement | BOX | Barnstable | 41 min |
Nearby
Tornado Warnings in Massachusetts, 2021Every tornado warning in 2021Tornadoes in 2021
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.