Alert archive / Connecticut / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 4, NWS New York, NY

May 26, 2012Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region, Connecticut

NWS New York, NY issued this severe thunderstorm warning at May 26, 2012, 4:36 PM EDT for Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region, Connecticut. It was in force for 39 min. 3 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
May 26, 2012, 4:36 PM EDT (20:36 UTC)
Expired
May 26, 2012, 5:15 PM EDT
In force
39 min
Issued by
NWS New York, NY
Area
Storm-based polygon

Counties Lower Connecticut River Valley Planning Region, CT, Southeastern Connecticut Planning Region, CT

The radar

The Brookhaven radar (KOKX), 85 km from the middle of the area, began a volume at 20:39 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

TimeReportWhereRemark
May 26, 4:44 PM EDTTSTM WND DMGEast Hampton, CTTREE LIMBS DOWN IN EAST HAMPTON.
May 26, 5:00 PM EDTTSTM WND DMGEast Hampton, CTTREE DOWN IN EAST HAMPTON.
May 26, 5:00 PM EDTHAIL 0.88East Hampton, CTNICKEL SIZE HAIL IN EAST HAMPTON.

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, 8.6 hours before the alert went out and 85 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 2012-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 144 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 2012-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.1939Sfc1 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
144 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
659 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
105 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.

527 
WUUS51 KOKX 262036
SVROKX
CTC007-011-262115-
/O.NEW.KOKX.SV.W.0004.120526T2036Z-120526T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
436 PM EDT SAT MAY 26 2012

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

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

* UNTIL 515 PM EDT...

* AT 435 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
  EAST HAMPTON...AND MOVING SOUTHEAST AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EAST
  HADDAM...COLCHESTER...SALEM AND NORTH LYME

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4131 7231 4154 7268 4164 7259 4165 7251
      4159 7246 4159 7242 4160 7242 4160 7238
      4160 7237 4161 7233 4152 7212
TIME...MOT...LOC 2036Z 304DEG 12KT 4157 7252

$$

DSW
2 follow-up statements
737 
WWUS51 KOKX 262100
SVSOKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
500 PM EDT SAT MAY 26 2012

CTC007-011-262115-
/O.CON.KOKX.SV.W.0004.000000T0000Z-120526T2115Z/
NEW LONDON CT-MIDDLESEX CT-
500 PM EDT SAT MAY 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR MIDDLESEX AND WESTERN NEW LONDON COUNTIES...

AT 456 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 MOODUS...OR NEAR EAST HAMPTON...MOVING SOUTHEAST AT 15
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EAST
HADDAM...COLCHESTER...SALEM...NORTH LYME...MILLINGTON...DEEP RIVER
AND CHESTER

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4131 7231 4151 7263 4160 7255 4162 7250
      4159 7246 4159 7242 4160 7242 4160 7237
      4161 7233 4152 7212
TIME...MOT...LOC 2100Z 304DEG 12KT 4153 7243

$$

DSW
562 
WWUS51 KOKX 262115
SVSOKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
515 PM EDT SAT MAY 26 2012

CTC007-011-262125-
/O.EXP.KOKX.SV.W.0004.000000T0000Z-120526T2115Z/
NEW LONDON CT-MIDDLESEX CT-
515 PM EDT SAT MAY 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR MIDDLESEX AND WESTERN NEW
LONDON COUNTIES HAS EXPIRED...

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

LAT...LON 4131 7231 4151 7263 4160 7255 4162 7250
      4159 7246 4159 7242 4160 7242 4160 7237
      4161 7233 4152 7212
TIME...MOT...LOC 2100Z 304DEG 12KT 4153 7243

$$

DSW

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 12:45 AM EDTDense Fog AdvisoryOKXGreater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region8 hr
May 26, 4:04 PM EDTSpecial Weather StatementOKX41 min
May 26, 5:17 PM EDTSpecial Weather StatementOKX58 min
May 26, 5:18 PM EDTSpecial Weather StatementOKX57 min

Nearby

Severe Thunderstorm Warnings in Connecticut, 2012Every 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.