Alert archive / New York / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 25, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at May 19, 1997, 9:39 PM EDT for Bergen County, New Jersey; Rockland County, Westchester County, New York. It was in force for 66 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
- May 19, 1997, 9:39 PM EDT (01:39 UTC)
- Expired
- May 19, 1997, 10:45 PM EDT
- In force
- 66 min
- Issued by
- NWS New York, NY
- Area
- Whole counties
Counties Bergen County, NJ, Rockland County, NY, Westchester County, NY
The radar
The Brookhaven radar (KOKX), 94 km from the middle of the area, began a volume at 01:36 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 |
|---|---|---|---|
| May 19, 10:40 PM EDT | Thunderstorm Wind 50 | Peekskill, NY | |
| May 19, 10:40 PM EDT | Thunderstorm Wind 50 | Saddle River, NJ |
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 nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 1.7 hours before the alert went out and 94 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.
- Mixed-layer CAPE
- 43 J/kg
- Mixed-layer CIN
- -133 J/kg
- Mixed-layer LCL
- 1358 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 252 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
272 WUUS1 KNYC 200143 RRA SVRNYC NJC003-NYC087-119-200245- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW YORK NY 939 PM EDT MON MAY 19 1997 THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1045 PM EDT FOR THE PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST NEW JERSEY ...BERGEN COUNTY IN SOUTHEAST NEW YORK ...ROCKLAND COUNTY...WESTCHESTER COUNTY AND THE ADJACENT COASTAL WATERS AT 930 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS MOVING EAST AT 50 MPH THROUGH ORANGE COUNTY NEW YORK AND WESTERN NEW JERSEY. THESE THUNDERSTORMS WILL MOVE INTO THE AREA AND WILL PRODUCE WINDS IN EXCESS OF 60 MPH...LARGE HAIL...DEADLY LIGHTNING...AND HEAVY RAIN. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DONT USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. EKSTER/HAYES
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 9:27 PM EDT | Severe Thunderstorm Warning | OKX | Passaic | 63 min |
| May 19, 10:02 PM EDT | Severe Thunderstorm Warning | OKX | Putnam | 58 min |
| May 19, 10:45 PM EDT | Severe Thunderstorm Warning | OKX | Nassau | 60 min |
Nearby
Severe Thunderstorm Warnings in New York, 1997Severe Thunderstorm Warnings in New Jersey, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.