Alert archive / New York / Tornado Warnings in 1998

Tornado Warning 7, NWS New York, NY

June 30, 1998Orange County, New York

NWS New York, NY issued this tornado warning at Jun 30, 1998, 6:48 PM EDT for Orange 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: Jun 30, 1998, 6:48 PM EDT (22:48 UTC)
Expired: Jun 30, 1998, 7:20 PM EDT
In force: 32 min
Issued by: NWS New York, NY
Area: Whole counties

County Orange County, NY

The radar

The Albany radar (KENX), 133 km from the middle of the area, began a volume at 22:49 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.

What was reported inside it

Time	Report	Where
Jun 30, 6:58 PM EDT	Thunderstorm Wind 60	Walden, NY
Jun 30, 7:09 PM EDT	Hail 1	Montgomery, NY
Jun 30, 7:10 PM EDT	Thunderstorm Wind 60	Monroe, 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.

Issued	Product	Office	Lasted
Jun 30, 3:15 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.8 hours before the alert went out and 135 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 640 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 542 m above ground
0-6 km bulk shear: 0 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 0 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 302251 RRA
TORNYC
NYC071-302320-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
648 PM EDT TUE JUN 30 1998

THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN ORANGE COUNTY IN SOUTHEASTERN NEW YORK

* UNTIL 720 PM EDT

* AT 647 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A POSSIBLE TORNADO IN THE VICINITY OF NEWBURGH.

* THE TORNADO IS EXPECTED TO BE NEAR...THE NEWBURGH AREA BY 655 PM.

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

RILEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 8:40 AM EDT	Severe Thunderstorm Warning	OKX	Suffolk	35 min
Jun 30, 12:15 PM EDT	Severe Thunderstorm Warning	OKX	Orange	45 min
Jun 30, 6:17 PM EDT	Severe Thunderstorm Warning	OKX	Orange	73 min
Jun 30, 7:10 PM EDT	Severe Thunderstorm Warning	OKX	Putnam	50 min
Jun 30, 7:36 PM EDT	Severe Thunderstorm Warning	OKX	Rockland	34 min
Jun 30, 7:37 PM EDT	Severe Thunderstorm Warning	OKX	Westchester	63 min
Jun 30, 7:52 PM EDT	Severe Thunderstorm Warning	OKX	Bronx, New York	78 min
Jun 30, 7:52 PM EDT	Severe Thunderstorm Warning	OKX	Kings, Queens	78 min
Jun 30, 7:52 PM EDT	Severe Thunderstorm Warning	OKX	Richmond	78 min

Nearby

Tornado Warnings in New York, 1998 Every tornado warning in 1998 Tornadoes 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; radar from the NEXRAD Level II archive.