Alert archive / Connecticut / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 7, NWS New York, NY

June 6, 2012Southeastern Connecticut Planning Region, Connecticut

NWS New York, NY issued this severe thunderstorm warning at Jun 6, 2012, 4:13 PM EDT for Southeastern Connecticut Planning Region, Connecticut. It was in force for 27 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: Jun 6, 2012, 4:13 PM EDT (20:13 UTC)
Expired: Jun 6, 2012, 4:40 PM EDT
In force: 27 min
Issued by: NWS New York, NY
Area: Storm-based polygon

County Southeastern Connecticut Planning Region, CT

The radar

The Boston radar (KBOX), 86 km from the middle of the area, began a volume at 20:13 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, 8.2 hours before the alert went out and 104 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: 23 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 792 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

471 
WUUS51 KOKX 062013
SVROKX
CTC011-062100-
/O.NEW.KOKX.SV.W.0007.120606T2013Z-120606T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
413 PM EDT WED JUN 6 2012

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN NEW LONDON COUNTY IN SOUTHERN CONNECTICUT...

* UNTIL 500 PM EDT...

* AT 412 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  NORTH STONINGTON...OR 11 MILES NORTHEAST OF MYSTIC...AND MOVING
  SOUTH AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  PAWCATUCK

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

&&

LAT...LON 4140 7184 4139 7183 4134 7182 4131 7185
      4132 7187 4133 7188 4132 7190 4133 7192
      4154 7198 4158 7179 4157 7179 4142 7179
TIME...MOT...LOC 2013Z 341DEG 21KT 4145 7181

$$

JM

1 follow-up statement

050 
WWUS51 KOKX 062040
SVSOKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
440 PM EDT WED JUN 6 2012

CTC011-062048-
/O.CAN.KOKX.SV.W.0007.000000T0000Z-120606T2100Z/
NEW LONDON CT-
440 PM EDT WED JUN 6 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN NEW LONDON COUNTY
IS CANCELLED...

THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LIMITS. HOWEVER...THIS 
THUNDERSTORM WILL STILL BE CAPABLE OF PRODUCING VERY HEAVY RAIN.


LAT...LON 4140 7184 4139 7183 4134 7182 4131 7185
      4132 7187 4133 7188 4132 7190 4133 7192
      4154 7198 4158 7179 4157 7179 4142 7179
TIME...MOT...LOC 2038Z 341DEG 21KT 4131 7175

$$

JM

The office that day

Everything else NWS New York, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 6, 4:42 AM EDT	Coastal Flood Statement	OKX	Greater Bridgeport Planning Region, Naugatuck Valley Planning Region	23 hr
Jun 6, 3:25 PM EDT	Special Weather Statement	OKX		50 min
Jun 6, 4:28 PM EDT	Special Weather Statement	OKX		47 min

Nearby

Severe Thunderstorm Warnings in Connecticut, 2012 Every severe thunderstorm warning in 2012

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.