Alert archive / Connecticut / Tornado Warnings in 2021

Tornado Warning 17, NWS Boston/Norton, MA

November 13, 2021Northeastern Connecticut Planning Region, Connecticut; Providence County, Rhode Island

NWS Boston/Norton, MA issued this tornado warning at Nov 13, 2021, 5:02 PM EST for Northeastern Connecticut Planning Region, Connecticut; Providence County, Rhode Island. It was in force for 28 min. 3 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: Nov 13, 2021, 5:02 PM EST (22:02 UTC)
Expired: Nov 13, 2021, 5:30 PM EST
In force: 28 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Northeastern Connecticut Planning Region, CT, Providence County, RI

The radar

The Boston radar (KBOX), 42 km from the middle of the area, began a volume at 22:01 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, 5:05 PM EST	TSTM WND DMG	Foster, RI	TREES AND WIRES DOWN ON JOHNSON ROAD.
Nov 13, 5:05 PM EST	TSTM WND DMG	Foster, RI	NUMEROUS TREES, LIMBS, AND WIRES DOWN ON CUCUMBER HILL ROAD.
Nov 13, 5:20 PM EST	TSTM WND DMG	Scituate, RI	TREE AND WIRES DOWN, TELEPHONE POLE SNAPPED IN HALF, ON ROCKY HILL 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
Nov 13, 12:27 PM EST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.0 hours before the alert went out and 150 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: 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

Open this sounding in Storm Lab

The text

As transmitted.

494 
WFUS51 KBOX 132202
TORBOX
CTC015-RIC007-132230-
/O.NEW.KBOX.TO.W.0017.211113T2202Z-211113T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Boston/Norton MA
502 PM EST Sat Nov 13 2021

The National Weather Service in Boston/Norton has issued a

* Tornado Warning for...
  Eastern Windham County in northern Connecticut...
  Central Providence County in Rhode Island...

* Until 530 PM EST.
    
* At 502 PM EST, a severe thunderstorm capable of producing a tornado
  was located over Foster, or 7 miles northwest of Coventry, moving
  northeast at 50 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...
  Scituate around 505 PM EST.
  Smithfield, Burrillville and Glocester around 515 PM EST.
  Providence and Johnston around 520 PM EST.
  North Providence, Lincoln and North Smithfield around 525 PM EST.
  Pawtucket around 530 PM EST.

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 4181 7184 4201 7156 4184 7137 4184 7138
      4173 7176
TIME...MOT...LOC 2202Z 237DEG 42KT 4179 7173 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Chai

1 follow-up statement

612 
WWUS51 KBOX 132223 RRA
SVSBOX

Severe Weather Statement
National Weather Service Boston/Norton MA
523 PM EST Sat Nov 13 2021

CTC015-RIC007-132233-
/O.EXP.KBOX.TO.W.0017.000000T0000Z-211113T2230Z/
Windham CT-Providence RI-
523 PM EST Sat Nov 13 2021

...THE TORNADO WARNING FOR EASTERN WINDHAM AND CENTRAL PROVIDENCE
COUNTIES WILL EXPIRE AT 530 PM EST...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 700 PM EST for
northern Connecticut...and Rhode Island.

LAT...LON 4181 7184 4201 7156 4184 7137 4184 7138
      4173 7176
TIME...MOT...LOC 2223Z 237DEG 42KT 4191 7149 

$$

Chai

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 13, 3:46 PM EST	Special Weather Statement	BOX		44 min
Nov 13, 4:09 PM EST	Severe Thunderstorm Warning	BOX	Capitol Planning Region	15 min
Nov 13, 4:41 PM EST	Special Weather Statement	BOX		49 min
Nov 13, 5:01 PM EST	Severe Thunderstorm Warning	BOX	Northeastern Connecticut Planning Region	26 min
Nov 13, 5:08 PM EST	Tornado Warning	BOX	Bristol, Kent, Providence, Washington	24 min
Nov 13, 5:12 PM EST	Severe Thunderstorm Warning	BOX	Bristol, Kent, Newport, Providence, Washington	44 min
Nov 13, 5:17 PM EST	Severe Thunderstorm Warning	BOX	Providence	7 min
Nov 13, 5:21 PM EST	Tornado Warning	BOX	Providence	24 min
Nov 13, 5:26 PM EST	Severe Thunderstorm Warning	BOX	Providence	32 min

Nearby

Tornado Warnings in Connecticut, 2021 Tornado Warnings in Rhode Island, 2021 Every tornado warning in 2021 Tornadoes 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.