Alert archive / Rhode Island / Tornado Warnings in 2021

Tornado Warning 18, NWS Boston/Norton, MA

November 13, 20214 counties in Rhode Island; Bristol County, Massachusetts

NWS Boston/Norton, MA issued this tornado warning at Nov 13, 2021, 5:08 PM EST for 4 counties in Rhode Island; Bristol County, Massachusetts. It was in force for 24 min. 4 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, 5:08 PM EST (22:08 UTC)
Expired: Nov 13, 2021, 5:32 PM EST
In force: 24 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Bristol County, MA, Bristol County, RI, Kent County, RI, Providence County, RI, Washington County, RI

The radar

The Boston radar (KBOX), 35 km from the middle of the area, began a volume at 22:07 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, 5:20 PM EST	TSTM WND DMG	East Greenwich, RI	TREE AND WIRES DOWN BLOCKING NICHOLS LANE AT ALLEN DRIVE
Nov 13, 5:20 PM EST	TSTM WND DMG	East Greenwich, RI	WIRES DOWN ON VALLEY ROAD.
Nov 13, 5:22 PM EST	TSTM WND DMG	Warwick, RI	TREE AND WIRES DOWN ON AMSTERDAM AVENUE.
Nov 13, 5:22 PM EST	TSTM WND DMG	Warwick, RI	TREE AND WIRES DOWN ON LAMBERT LIND HIGHWAY

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, 10.1 hours before the alert went out and 154 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.

890 
WFUS51 KBOX 132208
TORBOX
MAC005-RIC001-003-007-009-132245-
/O.NEW.KBOX.TO.W.0018.211113T2208Z-211113T2245Z/

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

The National Weather Service in Boston/Norton has issued a

* Tornado Warning for...
  West central Bristol County in southeastern Massachusetts...
  Northeastern Washington County in Rhode Island...
  Eastern Kent County in Rhode Island...
  Southeastern Providence County in Rhode Island...
  Northern Bristol County in Rhode Island...

* Until 545 PM EST.
    
* At 508 PM EST, a severe thunderstorm capable of producing a tornado
  was located over West Warwick, moving northeast at 45 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...
  Cranston around 520 PM EST.
  Providence, Johnston, Barrington and Warren around 525 PM EST.
  East Providence around 530 PM EST.
  Pawtucket and Seekonk around 535 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 4166 7162 4187 7141 4176 7128 4173 7129
      4175 7128 4173 7125 4171 7131 4179 7138
      4173 7138 4172 7136 4167 7137 4169 7145
      4167 7144 4166 7141 4165 7142 4164 7141
      4158 7152
TIME...MOT...LOC 2208Z 215DEG 38KT 4167 7151 

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

$$

Chai

1 follow-up statement

601 
WWUS51 KBOX 132232
SVSBOX

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

MAC005-RIC001-003-007-009-132242-
/O.CAN.KBOX.TO.W.0018.000000T0000Z-211113T2245Z/
Bristol MA-Washington RI-Kent RI-Providence RI-Bristol RI-
532 PM EST Sat Nov 13 2021

...THE TORNADO WARNING FOR WEST CENTRAL BRISTOL...NORTHEASTERN
WASHINGTON...EASTERN KENT...SOUTHEASTERN PROVIDENCE AND NORTHERN
BRISTOL COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

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

LAT...LON 4166 7162 4187 7141 4176 7128 4173 7129
      4175 7128 4173 7125 4171 7131 4179 7138
      4173 7138 4172 7136 4167 7137 4169 7145
      4167 7144 4166 7141 4165 7142 4164 7141
      4158 7152
TIME...MOT...LOC 2231Z 215DEG 38KT 4188 7132 

$$

Chai

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 13, 5:01 PM EST	Severe Thunderstorm Warning	BOX	Kent, Providence	26 min
Nov 13, 5:02 PM EST	Tornado Warning	BOX	Providence	28 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
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, 5:22 PM EST	Special Marine Warning	BOX		53 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, 6:27 PM EST	Tornado Warning	BOX	Barnstable	15 min
Nov 13, 6:49 PM EST	Special Weather Statement	BOX	Barnstable	41 min

Nearby

Tornado Warnings in Rhode Island, 2021 Tornado Warnings in Massachusetts, 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.