Alert archive / Connecticut / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 85, NWS Albany, NY
NWS Albany, NY issued this severe thunderstorm warning at Jul 6, 2021, 4:43 PM EDT for Northwest Hills Planning Region, Connecticut. It was in force for 37 min. 6 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
- Jul 6, 2021, 4:43 PM EDT (20:43 UTC)
- Expired
- Jul 6, 2021, 5:20 PM EDT
- In force
- 37 min
- Issued by
- NWS Albany, NY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 70.0 mph
The radar
The Brookhaven radar (KOKX), 87 km from the middle of the area, began a volume at 20:45 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 6, 4:46 PM EDT | TSTM WND DMG | 3 S Litchfield, CT | TREE DOWN ON POWERLINES |
| Jul 6, 4:47 PM EDT | TSTM WND DMG | Litchfield, CT | SEVERAL TREES DOWN. TIME ESTIMATED BY RADAR. |
| Jul 6, 4:52 PM EDT | TSTM WND DMG | 4 Ese Litchfield, CT | SEVERAL TREES DOWN. TIME ESTIMATED BY RADAR. |
| Jul 6, 4:57 PM EDT | TSTM WND DMG | 1 S Terryville, CT | NUMEROUS TREES AND WIRES DOWN |
| Jul 6, 5:00 PM EDT | TSTM WND DMG | 1 Ne Thomaston, CT | POWER LINES DOWNED ON NORTH STREET. |
| Jul 6, 5:06 PM EDT | TSTM WND DMG | 2 Ene Woodbury Center, CT | TREES DOWN ON WIRES WITH TWO CARS TRAPPED BY LIVE WIRES AT MIDDLE ROAD TURNPIKE AND CAT SWAMP ROAD |
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 6, 1:13 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.7 hours before the alert went out and 87 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.
- Mixed-layer CAPE
- 230 J/kg
- Mixed-layer CIN
- -195 J/kg
- Mixed-layer LCL
- 1202 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 184 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
895
WUUS51 KALY 062043
SVRALY
CTC005-062145-
/O.NEW.KALY.SV.W.0085.210706T2043Z-210706T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
443 PM EDT Tue Jul 6 2021
The National Weather Service in Albany has issued a
* Severe Thunderstorm Warning for...
Southern Litchfield County in northern Connecticut...
* Until 545 PM EDT.
* At 443 PM EDT, a severe thunderstorm was located over New Preston,
or 7 miles north of New Milford, moving east at 20 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
* Locations impacted include...
Torrington, New Milford, Thomaston, Kent, Litchfield, Northwest
Harwinton, Oakville, New Preston, Terryville, Woodbury Center,
Watertown, Plymouth, Woodbury, Harwinton, Bethlehem, Washington,
Morris, Roxbury, Bridgewater and Warren.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This storm is producing destructive winds and large damaging hail.
SEEK SHELTER NOW inside a sturdy structure and stay away from
windows!
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
Please report hail size...damaging winds and reports of trees down to
the National Weather Service by email at Alb.Stormreport@noaa.gov...
On Facebook at www.facebook.com/nwsalbany or twitter @nwsalbany
LAT...LON 4151 7339 4151 7343 4179 7350 4184 7294
4181 7295 4180 7302 4164 7298 4163 7302
4161 7302 4161 7306 4159 7306 4159 7308
4157 7309 4156 7316 4151 7316 4151 7332
4149 7334
TIME...MOT...LOC 2043Z 265DEG 17KT 4169 7337
HAIL...1.00IN
WIND...70MPH
$$
KSL2 follow-up statements
582
WWUS51 KALY 062105
SVSALY
Severe Weather Statement
National Weather Service Albany NY
505 PM EDT Tue Jul 6 2021
CTC005-062145-
/O.CON.KALY.SV.W.0085.000000T0000Z-210706T2145Z/
Litchfield CT-
505 PM EDT Tue Jul 6 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR SOUTHEASTERN LITCHFIELD COUNTY...
At 504 PM EDT, a severe thunderstorm was located near Thomaston,
and another one near Woodbury Center, moving east at 20 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Thomaston, Terryville, Woodbury Center, Northwest Harwinton,
Oakville, Watertown, Plymouth, Woodbury, Harwinton, Bethlehem,
Roxbury, Hotchkissville, Pequabuck, Reynolds Bridge, Hancock,
Pomeraug, Gulls Hollow, Plymouth Green, Northfield and Terryville
Station.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This storm is producing destructive winds and large damaging hail.
SEEK SHELTER NOW inside a sturdy structure and stay away from
windows.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4159 7333 4169 7315 4178 7311 4184 7294
4181 7295 4180 7302 4164 7298 4163 7302
4161 7302 4161 7306 4159 7306 4159 7308
4157 7309 4156 7316 4151 7316 4151 7332
4152 7333
TIME...MOT...LOC 2104Z 260DEG 18KT 4172 7306
HAIL...1.00IN
WIND...70MPH
$$
KSL856
WWUS51 KALY 062120
SVSALY
Severe Weather Statement
National Weather Service Albany NY
520 PM EDT Tue Jul 6 2021
CTC005-062129-
/O.CAN.KALY.SV.W.0085.000000T0000Z-210706T2145Z/
Litchfield CT-
520 PM EDT Tue Jul 6 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LITCHFIELD COUNTY
IS CANCELLED...
The storms which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However gusty winds and
heavy rain are still possible with these thunderstorm.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
northern Connecticut.
LAT...LON 4159 7333 4169 7315 4178 7311 4184 7294
4181 7295 4180 7302 4164 7298 4163 7302
4161 7302 4161 7306 4159 7306 4159 7308
4157 7309 4156 7316 4151 7316 4151 7332
4152 7333
TIME...MOT...LOC 2117Z 265DEG 17KT 4173 7296
$$
KSLThe office that day
Everything else NWS Albany, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 3:33 PM EDT | Heat Advisory | ALY | Northwest Hills Planning Region | 27 hr |
| Jul 6, 3:58 PM EDT | Special Weather Statement | ALY | 32 min | |
| Jul 6, 4:16 PM EDT | Severe Thunderstorm Warning | ALY | Northwest Hills Planning Region | 45 min |
| Jul 6, 5:04 PM EDT | Special Weather Statement | ALY | 26 min |
Nearby
Severe Thunderstorm Warnings in Connecticut, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.