Alert archive / New York / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 35, NWS Albany, NY

June 20, 1998Greene County, Ulster County, New York

NWS Albany, NY issued this severe thunderstorm warning at Jun 20, 1998, 6:20 PM EDT for Greene County, Ulster County, New York. It was in force for 60 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 20, 1998, 6:20 PM EDT (22:20 UTC)
Expired
Jun 20, 1998, 7:20 PM EDT
In force
60 min
Issued by
NWS Albany, NY
Area
Whole counties

Counties Greene County, NY, Ulster County, NY

The radar

The Albany radar (KENX), 57 km from the middle of the area, began a volume at 22:21 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

Albany, NY (KALY), launched 12:00Z, 10.3 hours before the alert went out and 74 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 12:00Z on 1998-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 500 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, Albany, NY at 12:00Z on 1998-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
500 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
721 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

494 
WUUS1 KALB 202221 RRA
SVRALB
NYC039-111-202320-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ALBANY NY
620 PM EDT SAT JUN 20 1998

THE NATIONAL WEATHER SERVICE IN ALBANY NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GREENE      COUNTY IN EASTERN NEW YORK
  ULSTER      COUNTY IN SOUTHEASTERN NEW YORK

* UNTIL  720 PM EDT

* AT  620 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM ABOUT 5 MILES SOUTHEAST OF TANNERSVILLE MOVING
  SOUTH ABOUT 10 MILES AN HOUR.

* THE SEVERE THUNDERSTORM WILL BE...
  5 MILES SOUTHEAST OF TANNERSVILLE AT  625 PM

  NEAR WOODSTOCK AT  700 PM

IF YOU LIVE IN THIS AREA BE READY TO SEEK SHELTER IN A BASEMENT
OR SMALL INTERIOR ROOM ON THE LOWEST LEVEL...AWAY FROM WINDOWS.


|42.170  74.064 |42.129  74.074 |42.088  74.083 |42.046  74.093 |42.005  74.103

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 6:17 PM EDTFlash Flood WarningALYHerkimer4 hr

Nearby

Severe Thunderstorm Warnings in New York, 1998Every severe thunderstorm warning 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.