Alert archive / New York / Tornado Warnings in 1998

Tornado Warning 16, NWS New York, NY

September 7, 1998Suffolk County, New York

NWS New York, NY issued this tornado warning at Sep 7, 1998, 3:13 PM EDT for Suffolk County, New York. It was in force for 32 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Sep 7, 1998, 3:13 PM EDT (19:13 UTC)
Expired
Sep 7, 1998, 3:45 PM EDT
In force
32 min
Issued by
NWS New York, NY
Area
Whole counties

County Suffolk County, NY

What was reported inside it

TimeReportWhereRemark
Sep 7, 3:15 PM EDTThunderstorm Wind 63West Babylon, NY
Sep 7, 3:30 PM EDTHail 0.75East Patchogue, NY
Sep 7, 3:45 PM EDTThunderstorm Wind 52Brookhaven, NY

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 7, 1:30 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.2 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 1998-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 242 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 1998-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.193958Sfc1 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
242 J/kg
Mixed-layer CIN
-232 J/kg
Mixed-layer LCL
1668 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

928 
WFUS1 KNYC 071915 RRA
TORNYC
NYC103-071945-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
313 PM EDT MON SEP 7 1998

THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN SUFFOLK COUNTY IN SOUTHEASTERN NEW YORK

* UNTIL 345 PM EDT


A TORNADO HAS BEEN OBSERVED ON THE GROUND IN BETHPAGE. IT IS
MOVING EAST AT 40 MPH INTO WESTERN SUFFOLK COUNTY. THE TOWNS OF
WYANDANCH..DEER PARK..COMMACK ARE IN ITS PATH. GO TO THE BASEMENT
OR TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR

RS


&

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 1:20 PM EDTSevere Thunderstorm WarningOKXOrange60 min
Sep 7, 1:54 PM EDTSevere Thunderstorm WarningOKXRockland46 min
Sep 7, 2:03 PM EDTSevere Thunderstorm WarningOKXRichmond47 min
Sep 7, 2:31 PM EDTSevere Thunderstorm WarningOKXNew York49 min
Sep 7, 2:31 PM EDTSevere Thunderstorm WarningOKXKings, Queens49 min
Sep 7, 2:35 PM EDTSevere Thunderstorm WarningOKXWestchester65 min
Sep 7, 2:38 PM EDTSevere Thunderstorm WarningOKXNassau62 min
Sep 7, 2:48 PM EDTSevere Thunderstorm WarningOKXSuffolk92 min
Sep 7, 2:53 PM EDTTornado WarningOKXNassau32 min

Nearby

Tornado Warnings in New York, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.