Alert archive / Connecticut / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 87, NWS Boston/Norton, MA

August 11, 2016Capitol Planning Region, Connecticut

NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 11, 2016, 6:19 PM EDT for Capitol Planning Region, Connecticut. It was in force for 56 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: Aug 11, 2016, 6:19 PM EDT (22:19 UTC)
Expired: Aug 11, 2016, 7:15 PM EDT
In force: 56 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Capitol Planning Region, CT

The radar

The Brookhaven radar (KOKX), 91 km from the middle of the area, began a volume at 22:19 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
Aug 11, 6:31 PM EDT	TSTM WND DMG	Glastonbury, CT	MULTIPLE TREES AND WIRES DOWN ON JOHNNY CAKE LANE
Aug 11, 6:31 PM EDT	TSTM WND DMG	Glastonbury, CT	TWO UTILITY POLES DOWN ON STRICKLAND STREET
Aug 11, 6:32 PM EDT	TSTM WND DMG	South Glastonbury, CT	WIRES DOWN ON RUSSET ROAD AND CIDER MILL ROAD
Aug 11, 6:34 PM EDT	TSTM WND DMG	South Glastonbury, CT	TREES AND WIRES DOWN CLOSING THE ROAD ON NEW LONDON TURNPIKE AT CIDER MILL ROAD

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, 10.3 hours before the alert went out and 91 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: 1804 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 802 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 114 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

345 
WUUS51 KBOX 112219
SVRBOX
CTC003-013-112315-
/O.NEW.KBOX.SV.W.0087.160811T2219Z-160811T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
619 PM EDT THU AUG 11 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN TOLLAND COUNTY IN NORTHERN CONNECTICUT...
  SOUTHEASTERN HARTFORD COUNTY IN NORTHERN CONNECTICUT...

* UNTIL 715 PM EDT

* AT 616 PM EDT...SEVERE THUNDERSTORMS STRETCHED FROM A SEVERE
  THUNDERSTORM WAS LOCATED OVER ROCKY HILL...WETHERSFIELD...AND
  GLASTONBURY. IT WAS NEARLY STATIONARY.

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

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT TREE AND POWER LINE DAMAGE.

* LOCATIONS IMPACTED INCLUDE...
  HARTFORD...NEW BRITAIN...WEST HARTFORD...MANCHESTER...
  EAST HARTFORD...GLASTONBURY...NEWINGTON...WETHERSFIELD...
  FARMINGTON...BERLIN...ROCKY HILL...HEBRON...MARLBOROUGH...
  BOLTON AND ANDOVER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4174 7277 4175 7240 4163 7237 4163 7249
      4165 7251 4163 7261 4164 7266 4163 7271
      4162 7272 4162 7276
TIME...MOT...LOC 2216Z 285DEG 0KT 4167 7265 

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

1 follow-up statement

247 
WWUS51 KBOX 112309
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
709 PM EDT THU AUG 11 2016

CTC003-013-112317-
/O.EXP.KBOX.SV.W.0087.000000T0000Z-160811T2315Z/
TOLLAND CT-HARTFORD CT-
709 PM EDT THU AUG 11 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN TOLLAND AND
SOUTHEASTERN HARTFORD COUNTIES WILL EXPIRE AT 715 PM EDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED SOUTHWARD OUT OF THE
WARNED AREA. THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4174 7277 4175 7240 4163 7237 4163 7249
      4165 7251 4163 7261 4164 7266 4163 7271
      4162 7272 4162 7276
TIME...MOT...LOC 2306Z 285DEG 0KT 4167 7265 

$$
FIELD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 11, 1:47 PM EDT	Severe Thunderstorm Warning	BOX	Capitol Planning Region	58 min
Aug 11, 2:19 PM EDT	Severe Thunderstorm Warning	BOX		43 min
Aug 11, 3:44 PM EDT	Heat Advisory	BOX	Capitol Planning Region, Northeastern Connecticut Planning Region	27 hr
Aug 11, 3:59 PM EDT	Areal Flood Advisory	BOX	Capitol Planning Region	46 min
Aug 11, 4:15 PM EDT	Severe Thunderstorm Warning	BOX	Northeastern Connecticut Planning Region	60 min
Aug 11, 4:22 PM EDT	Severe Thunderstorm Warning	BOX	Capitol Planning Region	38 min
Aug 11, 4:34 PM EDT	Areal Flood Warning	BOX	Capitol Planning Region, Northeastern Connecticut Planning Region	116 min
Aug 11, 4:41 PM EDT	Severe Thunderstorm Warning	BOX	Capitol Planning Region	49 min
Aug 11, 5:29 PM EDT	Severe Thunderstorm Warning	BOX	Capitol Planning Region, Northeastern Connecticut Planning Region	61 min
Aug 11, 5:51 PM EDT	Areal Flood Advisory	BOX	Capitol Planning Region	114 min
Aug 11, 6:15 PM EDT	Flash Flood Warning	BOX	Capitol Planning Region	2 hr

Nearby

Severe Thunderstorm Warnings in Connecticut, 2016 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.