Alert archive / Connecticut / Special Weather Statements in 2021

Special Weather Statement, NWS Boston/Norton, MA

July 7, 2021

NWS Boston/Norton, MA issued this special weather statement at Jul 7, 2021, 8:25 PM EDT. It was in force for 50 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 7, 2021, 8:25 PM EDT (00:25 UTC)
Expired: Jul 7, 2021, 9:15 PM EDT
In force: 50 min
Issued by: NWS Boston/Norton, MA

The radar

The Brookhaven radar (KOKX), 95 km from the middle of the area, began a volume at 00:27 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 00:00Z, 0.4 hours before the alert went out and 95 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: 1805 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 1235 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted.

402 
WWUS81 KBOX 080025
SPSBOX

Special Weather Statement
National Weather Service Boston/Norton MA
825 PM EDT Wed Jul 7 2021
 
CTZ002-080115-
Hartford CT-
825 PM EDT Wed Jul 7 2021

...STRONG THUNDERSTORM OVER HARTFORD COUNTY...

At 824 PM EDT, Doppler radar was tracking a strong thunderstorm over
Burlington, or near Bristol, moving east at 25 mph.

Pea size hail and winds in excess of 40 mph will accompany this
storm.

Locations impacted include...
Hartford, New Britain, West Hartford, Bristol, East Hartford,
Southington, Glastonbury, Newington, Windsor, Wethersfield, South
Windsor, Farmington, Bloomfield, Berlin, Rocky Hill, Avon, Plainville
and Burlington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.

&&

LAT...LON 4184 7260 4164 7259 4163 7261 4164 7266
      4163 7269 4166 7299 4178 7302 4180 7301
TIME...MOT...LOC 0024Z 271DEG 24KT 4174 7299 

$$

Chai

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 8:14 PM EDT	Special Weather Statement	BOX	Hampden	46 min
Jul 8, 2:00 AM EDT	Special Weather Statement	BOX	Hampden	45 min
Jul 8, 3:04 AM EDT	Special Weather Statement	BOX	Worcester	26 min
Jul 8, 3:22 AM EDT	Special Weather Statement	BOX	Norfolk	23 min
Jul 8, 3:42 AM EDT	Special Weather Statement	BOX	Norfolk, Plymouth	48 min
Jul 8, 3:45 AM EDT	Special Weather Statement	BOX	Bristol	45 min
Jul 8, 3:56 AM EDT	Special Marine Warning	BOX		64 min
Jul 8, 4:20 AM EDT	Flash Flood Watch	BOX	Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more	36 hr
Jul 8, 4:23 AM EDT	Special Marine Warning	BOX		67 min
Jul 8, 4:36 AM EDT	Special Marine Warning	BOX		54 min
Jul 8, 4:57 AM EDT	Tropical Storm Warning	BOX	Barnstable, Bristol, Dukes, Essex, Middlesex, Nantucket and 3 more	36 hr
Jul 8, 3:14 AM EDT	Special Weather Statement	BOX	Kent, Providence	31 min
Jul 7, 9:12 PM EDT	Special Weather Statement	BOX		48 min
Jul 7, 9:37 PM EDT	Special Weather Statement	BOX		38 min
Jul 7, 10:06 PM EDT	Special Weather Statement	BOX		54 min
Jul 7, 11:43 PM EDT	Special Weather Statement	BOX		47 min
Jul 8, 12:20 AM EDT	Special Weather Statement	BOX		25 min
Jul 8, 12:37 AM EDT	Special Weather Statement	BOX		23 min
Jul 8, 12:53 AM EDT	Special Weather Statement	BOX		52 min
Jul 8, 1:34 AM EDT	Special Weather Statement	BOX		41 min
Jul 8, 2:14 AM EDT	Special Weather Statement	BOX		46 min
Jul 8, 2:40 AM EDT	Special Weather Statement	BOX		35 min

Nearby

Special Weather Statements in Connecticut, 2021 Every special weather statement in 2021

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.