Alert archive / New York / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 45, NWS New York, NY

August 28, 1993Suffolk County, New York

NWS New York, NY issued this severe thunderstorm warning at Aug 28, 1993, 4:54 PM EDT for Suffolk County, New York. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Aug 28, 1993, 4:54 PM EDT (20:54 UTC)
Expired
Aug 28, 1993, 6:00 PM EDT
In force
66 min
Issued by
NWS New York, NY
Area
Whole counties

County Suffolk County, NY

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 8.9 hours before the alert went out and 241 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, Chatham, MA at 12:00Z on 1993-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 208 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, Chatham, MA at 12:00Z on 1993-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.1939Sfc1 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
208 J/kg
Mixed-layer CIN
-193 J/kg
Mixed-layer LCL
1137 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
-43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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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
Aug 28, 3:36 PM EDTSevere Thunderstorm WarningOKXHunterdon, Warren69 min
Aug 28, 4:02 PM EDTSevere Thunderstorm WarningOKXNassau43 min
Aug 28, 4:02 PM EDTSevere Thunderstorm WarningOKXWestchester43 min
Aug 28, 5:17 PM EDTSevere Thunderstorm WarningOKXNassau, Queens58 min
Aug 28, 5:17 PM EDTSevere Thunderstorm WarningOKXBronx58 min
Aug 28, 3:29 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region, Naugatuck Valley Planning Region61 min

Nearby

Severe Thunderstorm Warnings in New York, 1993Every severe thunderstorm warning in 1993

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.