Alert archive / New York / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 39, NWS New York, NY

July 15, 1995Suffolk County, New York

NWS New York, NY issued this severe thunderstorm warning at Jul 15, 1995, 9:08 AM EDT for Suffolk County, New York. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Jul 15, 1995, 9:08 AM EDT (13:08 UTC)
Expired
Jul 15, 1995, 10:15 AM EDT
In force
67 min
Issued by
NWS New York, NY
Area
Whole counties

County Suffolk County, NY

The radar

The Brookhaven radar (KOKX), 17 km from the middle of the area, began a volume at 13:11 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 1.1 hours before the alert went out and 17 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 1995-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3883 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 1995-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.1939Sfc1 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
3883 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1091 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
102 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 151312 RRA
SVRNYC
NYC103-151415-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
908 AM EDT SAT JUL 15 1995
 
THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 AM EDT
FOR THE PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST NEW YORK
 
   ...SUFFOLK COUNTY
 
AND THE ADJACENT COASTAL WATERS
 
 
A LINE OF THUNDERSTORMS OVER LONG ISLAND SOUND WILL MOVE ACROSS ALL OF
SUFFOLK COUNTY DURING THE NEXT HOUR. LARGE HAIL...DAMAGING WINDS AND
FREQUENT DEADLY LIGHTNING CAN BE EXPECTED.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 58
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY H
EAVY 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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 15, 5:30 AM EDT, 3 hours 38 minutes before
NYZ067>081-NJZ001>014-152000-

SPECIAL WEATHER STATEMENT - HEAT ADVISORY
NATIONAL WEATHER SERVICE NEW YORK NY
530 AM EDT SAT JUL 15 1995

...HEAT ADVISORY TODAY...

THE COMBINATION OF AFTERNOON HIGH TEMPERATURES NEAR 100 DEGREES AND
RELATIVE HUMIDITY LEVELS NEAR 50 PERCENT WILL SEND THE HEAT INDEX TO
BETWEEN 110 AND 120 DEGREES TODAY.

THE HEAT INDEX IS A MEASURE OF HOW HOT IT REALLY FEELS WHEN RELATIVE
HUMIDITY IS ADDED TO THE AIR TEMPERATURE. ONCE THE HEAT INDEX LEVEL
REACHES 105 DEGREES CONTINUED EXPOSURE AND/OR PHYSICAL ACTIVITY MAY
RESULT IN HEAT DISORDERS...PARTICULARLY FOR PEOPLE IN HIGH RISK
GROUPS. THESE DISORDERS INCLUDE SUNBURN...HEAT CRAMPS...HEAT
EXHAUSTION...AND HEAT STROKE.

THOSE MOST SUSCEPTIBLE TO THESE CONDITIONS INCLUDE THE
ELDERLY...SMALL CHILDREN...CHRONIC INVALIDS...THOSE ON CERTAIN
MEDICATIONS...AND PERSONS WITH WEIGHT AND ALCOHOL PROBLEMS.

HERE ARE SOME SAFETY TIPS TO HELP COPE WITH THIS OPPRESSIVE WEATHER -

1. SLOW DOWN. REDUCE OR ELIMINATE STRENUOUS ACTIVITIES...OR
RE-SCHEDULE THEM TO THE COOLEST TIME OF THE DAY.

2. DRESS CORRECTLY. WEAR LIGHTWEIGHT LIGHT-COLORED CLOTHING.

3. EAT LESS...BUT DRINK MORE WATER OR OTHER NON-ALCOHOLIC FLUIDS.

4. SPEND MORE TIME IN AIR-CONDITIONED PLACES.

5. DON'T GET TOO MUCH SUN.

EY

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 8:29 AM EDTSevere Thunderstorm WarningOKXOrange, Putnam, Westchester61 min

Nearby

Severe Thunderstorm Warnings in New York, 1995Every severe thunderstorm warning in 1995

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.