Alert archive / New York / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 87, NWS New York, NY

August 5, 1997Orange County, New York

NWS New York, NY issued this severe thunderstorm warning at Aug 5, 1997, 3:04 PM EDT for Orange County, New York. It was in force for 56 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
Aug 5, 1997, 3:04 PM EDT (19:04 UTC)
Expired
Aug 5, 1997, 4:00 PM EDT
In force
56 min
Issued by
NWS New York, NY
Area
Whole counties

County Orange County, NY

What was reported inside it

TimeReportWhereRemark
Aug 5, 3:30 PM EDTHail 1Bullville, 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 nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.1 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 1997-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 107 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, Brookhaven, NY at 12:00Z on 1997-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 square meters per square second.19395878Sfc1 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
107 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
474 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
30 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 051907 RRA
SVRNYC
NYC071-052000-
 
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
304 PM EDT TUE AUG 5 1997
 
THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  400 PM EDT
FOR THE PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST NEW YORK
 
   ...ORANGE COUNTY
 
AT 300 PM A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR JUST
NORTHWEST OF MONTGOMERY AND ANOTHER THUNDERSTORM WAS JUST NORTHWEST OF
MIDDLETOWN. THE STORMS WERE MOVING TO THE SOUTHEAST AT 15 MILES AN
HOUR...WHICH WILL TAKE THE STORMS ACROSS HARRIMAN BY 345 PM AND ACROSS
CHESTER BY 350 PM. THESE STORMS HAVE THE POTENTIAL TO PRODUCE HAIL UP TO
ONE INCH IN DIAMETER ALONG WITH WIND GUSTS TO 30 MILES AN HOUR...VERY
HEAVY RAIN AND DEADLY CLOUD TO GROUND LIGHTNING.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 58
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
 
MET/SDR

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 5:55 PM EDTSevere Thunderstorm WarningOKXNassau, Queens65 min
Aug 5, 6:31 PM EDTSevere Thunderstorm WarningOKXSuffolk44 min
Aug 5, 6:55 PM EDTSevere Thunderstorm WarningOKXNassau35 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.