Alert archive / Connecticut / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 28, NWS New York, NY

July 1, 2012Southeastern Connecticut Planning Region, Connecticut

NWS New York, NY issued this severe thunderstorm warning at Jul 1, 2012, 6:04 PM EDT for Southeastern Connecticut Planning Region, Connecticut. It was in force for 41 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: Jul 1, 2012, 6:04 PM EDT (22:04 UTC)
Expired: Jul 1, 2012, 6:45 PM EDT
In force: 41 min
Issued by: NWS New York, NY
Area: Storm-based polygon

County Southeastern Connecticut Planning Region, CT

The radar

The Brookhaven radar (KOKX), 84 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.

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, 10.1 hours before the alert went out and 84 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.

714 
WUUS51 KOKX 012204
SVROKX
CTC011-012245-
/O.NEW.KOKX.SV.W.0028.120701T2204Z-120701T2245Z/

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

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

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

* UNTIL 645 PM EDT...

* AT 602 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
  WATERFORD...OR 7 MILES WEST OF NEW LONDON...AND MOVING EAST AT 25
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WATERFORD BY 615 PM...
  NEW LONDON BY 620 PM...
  GROTON BY 625 PM...
  MYSTIC BY 635 PM...

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 4131 7185 4133 7188 4133 7194 4130 7198
      4131 7208 4129 7211 4130 7217 4132 7219
      4128 7220 4129 7224 4127 7226 4129 7228
      4143 7224 4139 7183 4134 7182
TIME...MOT...LOC 2204Z 280DEG 20KT 4133 7222

$$

MALOIT

1 follow-up statement

305 
WWUS51 KOKX 012230
SVSOKX

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

CTC011-012245-
/O.CON.KOKX.SV.W.0028.000000T0000Z-120701T2245Z/
NEW LONDON CT-
630 PM EDT SUN JUL 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR SOUTHERN NEW LONDON COUNTY...

AT 628 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR NIANTIC...OR 7 MILES WEST OF NEW LONDON...MOVING EAST AT
20 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  WATERFORD BY 640 PM...
  NEW LONDON...GROTON...6 MILES SOUTHWEST OF POQUONOCK BRIDGE AND 9
  MILES WEST OF MYSTIC BY 645 PM...

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 4131 7185 4133 7188 4133 7194 4130 7198
      4131 7208 4129 7211 4130 7217 4132 7219
      4128 7220 4129 7224 4127 7226 4129 7228
      4143 7224 4139 7183 4134 7182
TIME...MOT...LOC 2231Z 287DEG 17KT 4133 7222

$$

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, 4:28 PM EDT	Severe Thunderstorm Warning	OKX	Southeastern Connecticut Planning Region	17 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, 6:16 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.