Alert archive / Connecticut / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 22, NWS New York, NY

July 1, 2012Southeastern Connecticut Planning Region, Connecticut

NWS New York, NY issued this severe thunderstorm warning at Jul 1, 2012, 4:28 PM EDT for Southeastern Connecticut Planning Region, Connecticut. It was in force for 17 min. 1 report 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: Jul 1, 2012, 4:28 PM EDT (20:28 UTC)
Expired: Jul 1, 2012, 4:45 PM EDT
In force: 17 min
Issued by: NWS New York, NY
Area: Storm-based polygon

County Southeastern Connecticut Planning Region, CT

The radar

The Boston radar (KBOX), 74 km from the middle of the area, began a volume at 20:31 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
Jul 1, 4:30 PM EDT	TSTM WND DMG	Voluntown, CT	NUMEROUS TREES DOWN.

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
Jul 1, 1:35 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.5 hours before the alert went out and 115 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: 254 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 1757 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 40 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.

032 
WUUS51 KOKX 012028
SVROKX
CTC011-012045-
/O.NEW.KOKX.SV.W.0022.120701T2028Z-120701T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
428 PM EDT SUN JUL 1 2012

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

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

* UNTIL 445 PM EDT...

* AT 427 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
  VOLUNTOWN...OR NEAR PLAINFIELD...AND MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
  AREAS OF THE INDICATED COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM SUNDAY
EVENING FOR SOUTHERN CONNECTICUT AND NORTHEAST NEW JERSEY AND
SOUTHEAST NEW YORK.

&&

LAT...LON 4150 7179 4152 7201 4164 7200 4165 7180
      4164 7178
TIME...MOT...LOC 2028Z 275DEG 30KT 4160 7188

$$

MALOIT

1 follow-up statement

194 
WWUS51 KOKX 012041
SVSOKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
441 PM EDT SUN JUL 1 2012

CTC011-012051-
/O.EXP.KOKX.SV.W.0022.000000T0000Z-120701T2045Z/
NEW LONDON CT-
441 PM EDT SUN JUL 1 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN NEW LONDON COUNTY
WILL EXPIRE AT 445 PM EDT...

THE STORM HAS WEAKENED BELOW SEVERE LIMITS AND WILL SOON MOVE OUT OF 
THE AREA. THEREFORE THE SEVERE THUNDERSTORM WARNING WILL BE ALLOWED 
TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM SUNDAY
EVENING FOR SOUTHERN CONNECTICUT AND NORTHEAST NEW JERSEY AND
SOUTHEAST NEW YORK.

LAT...LON 4150 7179 4152 7201 4164 7200 4165 7180
      4164 7178
TIME...MOT...LOC 2041Z 275DEG 30KT 4159 7174

$$

MALOIT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 1:42 PM EDT	Special Weather Statement	OKX		63 min
Jul 1, 2:54 PM EDT	Special Weather Statement	OKX		51 min
Jul 1, 2:55 PM EDT	Special Weather Statement	OKX		35 min
Jul 1, 3:01 PM EDT	Severe Thunderstorm Warning	OKX	Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region	44 min
Jul 1, 3:25 PM EDT	Severe Thunderstorm Warning	OKX	Southeastern Connecticut Planning Region	50 min
Jul 1, 3:36 PM EDT	Severe Thunderstorm Warning	OKX	Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region	39 min
Jul 1, 4:08 PM EDT	Severe Thunderstorm Warning	OKX	Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region	37 min
Jul 1, 4:17 PM EDT	Special Weather Statement	OKX		28 min
Jul 1, 5:25 PM EDT	Severe Thunderstorm Warning	OKX	Naugatuck Valley Planning Region	24 min
Jul 1, 5:27 PM EDT	Severe Thunderstorm Warning	OKX	Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region	48 min
Jul 1, 5:51 PM EDT	Special Weather Statement	OKX		24 min
Jul 1, 6:01 PM EDT	Special Weather Statement	OKX		29 min
Jul 1, 6:04 PM EDT	Severe Thunderstorm Warning	OKX	Southeastern Connecticut Planning Region	41 min
Jul 1, 6:16 PM EDT	Severe Thunderstorm Warning	OKX	Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region	44 min
Jul 1, 6:23 PM EDT	Areal Flood Advisory	OKX	Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region	52 min
Jul 1, 7:03 PM EDT	Special Weather Statement	OKX		42 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.