Alert archive / Connecticut / Tornado Warnings in 1998

Tornado Warning 9, NWS New York, NY

June 30, 1998Southeastern Connecticut Planning Region, Connecticut

NWS New York, NY issued this tornado warning at Jun 30, 1998, 8:10 PM EDT for Southeastern Connecticut Planning Region, Connecticut. It was in force for 80 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 30, 1998, 8:10 PM EDT (00:10 UTC)
Expired
Jun 30, 1998, 9:30 PM EDT
In force
80 min
Issued by
NWS New York, NY
Area
Whole counties

County Southeastern Connecticut Planning Region, CT

The radar

The Boston radar (KBOX), 94 km from the middle of the area, began a volume at 00:12 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, 0.2 hours before the alert went out and 96 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 00:00Z on 1998-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1403 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 1998-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 199 square meters per square second.1939587897117Sfc1 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
1403 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
827 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
199 m²/s²
0-3 km storm-relative helicity
191 m²/s²
Significant tornado parameter
1.6
Supercell composite
7.5

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
Jun 30, 8:04 PM EDTTornado WarningOKXLower Connecticut River Valley Planning Region46 min
Jun 30, 8:10 PM EDTTornado WarningOKXSoutheastern Connecticut Planning Region45 min
Jun 30, 8:24 PM EDTTornado WarningOKXNaugatuck Valley Planning Region46 min
Jun 30, 8:55 PM EDTTornado WarningOKXSoutheastern Connecticut Planning Region35 min
Jun 30, 8:56 PM EDTFlash Flood WarningOKXNaugatuck Valley Planning Region12 hr

Nearby

Tornado Warnings in Connecticut, 1998Every tornado warning in 1998Tornadoes in 1998

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.