Alert archive / Connecticut / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 49, NWS Boston/Norton, MA

June 11, 2007Capitol Planning Region, Connecticut

NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 11, 2007, 7:44 PM EDT for Capitol Planning Region, Connecticut. It was in force for 61 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
Jun 11, 2007, 7:44 PM EDT (23:44 UTC)
Expired
Jun 11, 2007, 8:45 PM EDT
In force
61 min
Issued by
NWS Boston/Norton, MA
Area
Counties, with a storm outline in the text

County Capitol Planning Region, CT

The radar

The Brookhaven radar (KOKX), 115 km from the middle of the area, began a volume at 23:44 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
Jun 11, 8:00 PM EDTTSTM WND DMG5 E Windsor Locks, CTTREES DOWN IN BROAD BROOK. ONE TREE FELL ON AND CRUSHED A CAR.

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, 11.7 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2007-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2007-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1389 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
86 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.

000 
WUUS51 KBOX 112344
SVRBOX
CTC003-120045-
/O.NEW.KBOX.SV.W.0049.070611T2344Z-070612T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
744 PM EDT MON JUN 11 2007

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN HARTFORD COUNTY IN NORTHERN CONNECTICUT...
  THIS INCLUDES THE CITIES OF...MANCHESTER...EAST HARTFORD...

* UNTIL 845 PM EDT

* AT 740 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  ENFIELD...OR ABOUT 9 MILES EAST OF WINDSOR LOCKS...AND MOVING
  SOUTHWEST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  EAST WINDSOR...WINDSOR AND 6 MILES NORTHWEST OF MANCHESTER BY 810
  PM EDT...
  SOUTH WINDSOR BY 815 PM EDT...
  EAST HARTFORD BY 820 PM EDT...

LAT...LON 4179 7272 4198 7256 4203 7250 4191 7251
      4190 7252 4189 7251 4169 7253

$$

MLE
3 follow-up statements
000 
WWUS51 KBOX 112354
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
754 PM EDT MON JUN 11 2007

CTC003-120045-
/O.CON.KBOX.SV.W.0049.000000T0000Z-070612T0045Z/
HARTFORD CT-
754 PM EDT MON JUN 11 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR EAST CENTRAL HARTFORD COUNTY...

AT 749 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED 7 MILES NORTHEAST OF EAST WINDSOR...OR ABOUT 7 MILES EAST OF
WINDSOR LOCKS...MOVING SOUTHWEST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  EAST WINDSOR BY 805 PM EDT...
  WINDSOR AND SOUTH WINDSOR BY 810 PM EDT...
  EAST HARTFORD BY 815 PM EDT...

LAT...LON 4173 7255 4179 7271 4185 7268 4194 7256
      4195 7251 4193 7251 4192 7252 4188 7251

$$

MLE
000 
WWUS51 KBOX 120016
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
817 PM EDT MON JUN 11 2007

CTC003-120045-
/O.CON.KBOX.SV.W.0049.000000T0000Z-070612T0045Z/
HARTFORD CT-
817 PM EDT MON JUN 11 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR EAST CENTRAL HARTFORD COUNTY...

AT 814 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. 
THIS STORM WAS LOCATED NEAR EAST HARTFORD...OR ABOUT NEAR
MANCHESTER...MOVING SOUTH AT 30 MPH.

LAT...LON 4176 7261 4176 7264 4178 7269 4184 7266
      4191 7252 4184 7252 4183 7253 4175 7254
      4173 7256

$$

MLE
000 
WWUS51 KBOX 120042
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
842 PM EDT MON JUN 11 2007

CTC003-120052-
/O.EXP.KBOX.SV.W.0049.000000T0000Z-070612T0045Z/
HARTFORD CT-
842 PM EDT MON JUN 11 2007

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HARTFORD COUNTY
EXPIRES AT 845 PM EDT...

THE STORM HAS WEAKENED TO BELOW SEVERE LIMITS. THEREFORE...THE 
WARNING WILL BE ALLOWED TO EXPIRE AT 845 PM.

LAT...LON 4176 7261 4176 7264 4178 7269 4184 7266
      4191 7252 4184 7252 4183 7253 4175 7254
      4173 7256

$$

MLE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 7:29 PM EDTSevere Thunderstorm WarningBOX61 min

Nearby

Severe Thunderstorm Warnings in Connecticut, 2007Every severe thunderstorm warning in 2007

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.