Alert archive / Connecticut / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 39, NWS New York, NY

November 20, 1989Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Connecticut

NWS New York, NY issued this severe thunderstorm warning at Nov 20, 1989, 10:11 PM EST for Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Connecticut. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Nov 20, 1989, 10:11 PM EST (03:11 UTC)
Expired
Nov 20, 1989, 11:15 PM EST
In force
64 min
Issued by
NWS New York, NY
Area
Whole counties

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

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Albany, NY (KALB), launched 00:00Z, 3.2 hours before the alert went out and 159 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, Albany, NY at 00:00Z on 1989-11-21Temperature 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 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 00:00Z on 1989-11-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 249 square meters per square second.1939587897Sfc1 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
1035 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
249 m²/s²
0-3 km storm-relative helicity
324 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 20, 8:37 PM ESTSevere Thunderstorm WarningOKXHunterdon, Middlesex, Somerset83 min
Nov 20, 9:00 PM ESTSevere Thunderstorm WarningOKXMonmouth60 min
Nov 20, 9:00 PM ESTSevere Thunderstorm WarningOKXBergen, Passaic60 min
Nov 20, 9:00 PM ESTSevere Thunderstorm WarningOKXEssex, Morris, Union60 min
Nov 20, 9:00 PM ESTSevere Thunderstorm WarningOKXSussex, Warren60 min
Nov 20, 9:00 PM ESTSevere Thunderstorm WarningOKXHudson60 min
Nov 20, 9:00 PM ESTSevere Thunderstorm WarningOKXNassau, Suffolk60 min
Nov 20, 9:00 PM ESTSevere Thunderstorm WarningOKXKings, Queens60 min
Nov 20, 10:00 PM ESTSevere Thunderstorm WarningOKXSuffolk60 min
Nov 20, 9:25 PM ESTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region, Naugatuck Valley Planning Region65 min

Nearby

Severe Thunderstorm Warnings in Connecticut, 1989Every severe thunderstorm warning in 1989

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.