Alert archive / Connecticut / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 18, NWS Boston/Norton, MA

April 1, 2016Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this severe thunderstorm warning at Apr 1, 2016, 7:35 PM EDT for Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 1, 2016, 7:35 PM EDT (23:35 UTC)
Expired
Apr 1, 2016, 8:15 PM EDT
In force
40 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT

The radar

The Boston radar (KBOX), 99 km from the middle of the area, began a volume at 23:38 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.6 hours before the alert went out and 103 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2016-04-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2016-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 196 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
655 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
196 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

180 
WUUS51 KBOX 012335
SVRBOX
CTC003-013-015-020015-
/O.NEW.KBOX.SV.W.0018.160401T2335Z-160402T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
735 PM EDT FRI APR 1 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL WINDHAM COUNTY IN NORTHERN CONNECTICUT...
  SOUTHERN TOLLAND COUNTY IN NORTHERN CONNECTICUT...
  SOUTHEASTERN HARTFORD COUNTY IN NORTHERN CONNECTICUT...

* UNTIL 815 PM EDT

* AT 734 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
  MIDDLETOWN...MOVING NORTHEAST AT 50 MPH.

  HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  GLASTONBURY...MANSFIELD...WINDHAM...PLAINFIELD...WILLIMANTIC...
  KILLINGLY...COVENTRY...HEBRON...PUTNAM...BROOKLYN...MARLBOROUGH...
  COLUMBIA...CANTERBURY...POMFRET...STERLING...ANDOVER...CHAPLIN...HAMPTON...
  EASTFORD AND SCOTLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4194 7183 4177 7180 4166 7214 4167 7218
      4171 7224 4169 7227 4167 7227 4164 7233
      4161 7233 4159 7239 4160 7241 4158 7246
      4164 7250 4163 7262 4158 7276
TIME...MOT...LOC 2334Z 244DEG 59KT 4158 7261 

HAIL...0.75IN
WIND...60MPH
 
$$

WTB
1 follow-up statement
783 
WWUS51 KBOX 012357
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
757 PM EDT FRI APR 1 2016

CTC003-013-015-020015-
/O.CON.KBOX.SV.W.0018.000000T0000Z-160402T0015Z/
WINDHAM CT-TOLLAND CT-HARTFORD CT-
757 PM EDT FRI APR 1 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR CENTRAL WINDHAM...SOUTHERN TOLLAND AND SOUTHEASTERN HARTFORD
COUNTIES...

AT 755 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER WILLIMANTIC...OR
OVER WINDHAM...MOVING NORTHEAST AT 50 MPH.

HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

THIS SEVERE STORM WILL BE NEAR...
  HAMPTON AROUND 800 PM EDT. 
  PLAINFIELD...BROOKLYN AND CANTERBURY AROUND 805 PM EDT. 
  POMFRET AROUND 810 PM EDT. 
  KILLINGLY...PUTNAM AND STERLING AROUND 815 PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4194 7183 4177 7180 4166 7214 4167 7218
      4171 7224 4169 7227 4167 7227 4164 7233
      4161 7233 4159 7239 4160 7241 4158 7246
      4164 7250 4163 7262 4158 7276
TIME...MOT...LOC 2355Z 244DEG 59KT 4173 7219 

HAIL...0.75IN
WIND...60MPH
 
$$

WTB

Nearby

Severe Thunderstorm Warnings in Connecticut, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.