Alert archive / Connecticut / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 8, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at May 26, 2021, 8:22 PM EDT for Northeastern Connecticut Planning Region, Connecticut. It was in force for 38 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
- May 26, 2021, 8:22 PM EDT (00:22 UTC)
- Expired
- May 26, 2021, 9:00 PM EDT
- In force
- 38 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
The radar
The Boston radar (KBOX), 79 km from the middle of the area, began a volume at 00:24 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 |
|---|---|---|---|
| May 26, 3:56 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.4 hours before the alert went out and 129 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
- 357 J/kg
- Mixed-layer CIN
- -174 J/kg
- Mixed-layer LCL
- 956 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
498 WUUS51 KBOX 270022 SVRBOX CTC013-015-270100- /O.NEW.KBOX.SV.W.0008.210527T0022Z-210527T0100Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Boston/Norton MA 822 PM EDT Wed May 26 2021 The National Weather Service in Boston/Norton has issued a * Severe Thunderstorm Warning for... Central Windham County in northern Connecticut... Northeastern Tolland County in northern Connecticut... * Until 900 PM EDT. * At 821 PM EDT, a severe thunderstorm was located over Ashford, or near Mansfield, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to trees and power lines. * Locations impacted include... Mansfield, Plainfield, Killingly, Putnam, Thompson, Brooklyn, Woodstock, Willington, Ashford, Pomfret, Sterling, Chaplin, Hampton, Eastford and Union. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4182 7228 4194 7224 4202 7182 4173 7181 TIME...MOT...LOC 0021Z 277DEG 32KT 4187 7217 HAIL...<.75IN WIND...60MPH $$ Nocera
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 8:40 PM EDT | Special Weather Statement | BOX | 35 min | |
| May 26, 8:58 PM EDT | Special Weather Statement | BOX | 32 min | |
| May 26, 9:06 PM EDT | Special Weather Statement | BOX | 39 min | |
| May 26, 9:37 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 38 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.