Alert archive / New York / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 76, NWS New York, NY

September 7, 1998Richmond County, New York

NWS New York, NY issued this severe thunderstorm warning at Sep 7, 1998, 2:03 PM EDT for Richmond County, New York. It was in force for 47 min. 2 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, 2:03 PM EDT (18:03 UTC)
Expired: Sep 7, 1998, 2:50 PM EDT
In force: 47 min
Issued by: NWS New York, NY
Area: Whole counties

County Richmond County, NY

The radar

The Philadelphia radar (KDIX), 74 km from the middle of the area, began a volume at 18:06 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	Remark
Sep 7, 2:17 PM EDT	Thunderstorm Wind 70	Great Kills, NY
Sep 7, 2:30 PM EDT	Thunderstorm Wind 70	Richmond, 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
Sep 7, 1:30 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 6.1 hours before the alert went out and 113 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: 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.

590 
WUUS1 KNYC 071805 RRA
SVRNYC
ANZ355-NJC013-017-039-NYC085-071850-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
203 PM EDT MON SEP 7 1998

THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RICHMOND COUNTY INCLUDING ADJACENT COASTAL WATERS IN SOUTHEASTERN
  NEW YORK
  ESSEX COUNTY IN NORTHEASTERN NEW JERSEY
  HUDSON COUNTY IN NORTHEASTERN NEW JERSEY
  UNION COUNTY IN NORTHEASTERN NEW JERSEY

* UNTIL 250 PM EDT

* AN AREA OF SEVERE THUNDERSTORMS OVER NORTHERN NEW JERSEY WERE
  MOVING RAPIDLY EAST AROUND 50 MPH. THESE STORMS HAVE A HISTORY
  OF PRODUCING WIND GUSTS IN EXCESS OF 60 MPH AND LARGE HAIL.


IN ADDITION TO LARGE HAIL AND DAMAGING WINDS... EXTREMELY INTENSE
LIGHTNING IS ALSO LIKELY WITH THIS STORM. IF OUTDOORS... STAY
AWAY FROM TALL OBJECTS. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING THE TELEPHONES
AND ELECTRICAL EQUIPMENT. STAY OUT OF YOUR BATHTUB OR SHOWER
BECAUSE LIGHTNING CAN TRAVEL THROUGH WATER PIPES.

PW

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 7, 1:20 PM EDT	Severe Thunderstorm Warning	OKX	Orange	60 min
Sep 7, 1:54 PM EDT	Severe Thunderstorm Warning	OKX	Rockland	46 min
Sep 7, 2:31 PM EDT	Severe Thunderstorm Warning	OKX	New York	49 min
Sep 7, 2:31 PM EDT	Severe Thunderstorm Warning	OKX	Kings, Queens	49 min
Sep 7, 2:35 PM EDT	Severe Thunderstorm Warning	OKX	Westchester	65 min
Sep 7, 2:38 PM EDT	Severe Thunderstorm Warning	OKX	Nassau	62 min
Sep 7, 2:48 PM EDT	Severe Thunderstorm Warning	OKX	Suffolk	92 min
Sep 7, 2:53 PM EDT	Tornado Warning	OKX	Nassau	32 min
Sep 7, 3:13 PM EDT	Tornado Warning	OKX	Suffolk	32 min

Nearby

Severe Thunderstorm Warnings in New York, 1998 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.