Alert archive / New York / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 28, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at May 19, 1997, 10:45 PM EDT for Nassau County, New York. It was in force for 60 min. 1 report 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, 10:45 PM EDT (02:45 UTC)
- Expired
- May 19, 1997, 11:45 PM EDT
- In force
- 60 min
- Issued by
- NWS New York, NY
- Area
- Whole counties
County Nassau County, NY
The radar
The Brookhaven radar (KOKX), 62 km from the middle of the area, began a volume at 02:46 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, 10:52 PM EDT | Thunderstorm Wind 50 | Sea Cliff, 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 |
|---|---|---|---|
| May 19, 9:45 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 2.8 hours before the alert went out and 62 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.
675 WUUS1 KNYC 200247 RRA SVRNYC NYC059-200345- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW YORK NY 1045 PM EDT MON MAY 19 1997 THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM EDT FOR THE PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST NEW YORK ...NASSAU COUNTY AND THE ADJACENT COASTAL WATERS AT 1040 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS MOVING SOTHEASTWARD AT 50 MPH THROUGH THE LOWER HUDSON VALLEY OF NEW YORK AND NORTHEAST NEW JERSEY. THESE STORMS WILL ENTER THE COUNTY BY 1100 PM AND WILL PRODUCE WINDS IN EXCESS OF 60 MPH...HAIL...DEADLY LIGHTNING...AND VERY 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. KLEIN/EKSTER
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 | Orange | 63 min |
| May 19, 9:39 PM EDT | Severe Thunderstorm Warning | OKX | Rockland, Westchester | 66 min |
| May 19, 10:02 PM EDT | Severe Thunderstorm Warning | OKX | Putnam | 58 min |
Nearby
Severe Thunderstorm Warnings in New York, 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.