Alert archive / New York / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 19, NWS New York, NY

May 6, 1997Suffolk County, New York

NWS New York, NY issued this severe thunderstorm warning at May 6, 1997, 2:03 PM EDT for Suffolk County, New York. It was in force for 57 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
May 6, 1997, 2:03 PM EDT (18:03 UTC)
Expired
May 6, 1997, 3:00 PM EDT
In force
57 min
Issued by
NWS New York, NY
Area
Whole counties

County Suffolk County, NY

The radar

The Brookhaven radar (KOKX), 17 km from the middle of the area, began a volume at 18:04 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.

IssuedProductOfficeLasted
May 6, 11:45 AM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 6.1 hours before the alert went out and 17 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 12:00Z on 1997-05-06Temperature 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 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 12:00Z on 1997-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 198 square meters per square second.19395878Sfc1 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
1042 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
198 m²/s²
0-3 km storm-relative helicity
203 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KNYC 061804 RRA
SVRNYC
CTC009-NYC103-061900-
 
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
203 PM EDT TUE MAY 6 1997
 
THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUE

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 11:46 AM EDTSevere Thunderstorm WarningOKXOrange59 min
May 6, 12:42 PM EDTSevere Thunderstorm WarningOKXOrange63 min
May 6, 1:19 PM EDTSevere Thunderstorm WarningOKXBronx, Putnam, Rockland, Westchester56 min
May 6, 1:19 PM EDTSevere Thunderstorm WarningOKXRichmond56 min
May 6, 1:19 PM EDTSevere Thunderstorm WarningOKXNew York56 min
May 6, 1:19 PM EDTSevere Thunderstorm WarningOKXKings, Queens56 min
May 6, 1:38 PM EDTSevere Thunderstorm WarningOKXNassau67 min
May 6, 2:17 PM EDTSevere Thunderstorm WarningOKXBronx, New York28 min
May 6, 2:17 PM EDTSevere Thunderstorm WarningOKXKings, Queens28 min

Nearby

Severe Thunderstorm Warnings in New York, 1997Every severe thunderstorm warning in 1997

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.