Alert archive / New York / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 12, NWS New York, NY

June 29, 1990Suffolk County, New York

NWS New York, NY issued this severe thunderstorm warning at Jun 29, 1990, 9:15 PM EDT for Suffolk County, New York. It was in force for 105 min.

The area

The counties it named.

The facts

Issued
Jun 29, 1990, 9:15 PM EDT (01:15 UTC)
Expired
Jun 29, 1990, 11:00 PM EDT
In force
105 min
Issued by
NWS New York, NY
Area
Whole counties

County Suffolk County, NY

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Albany, NY (KALB), launched 00:00Z, 1.3 hours before the alert went out and 216 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, Albany, NY at 00:00Z on 1990-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 00:00Z on 1990-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Jun 29, 6:37 PM EDT, 2 hours 38 minutes before
NJZ001-005-007-015-NYZ014>017-292330-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW YORK NY
635 PM EDT FRI JUN 29 1990

...DO NOT USE AFTER 8 PM...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NEW YORK CITY..NORTHERN NEW
JERSEY..SOUTHEASTERN NEW YORK AND LONG ISLAND UNTIL 11 PM TONIGHT.

A BAND OF THUNDERSTORMS EXTENDED FROM JUST SOUTHWEST OF CHATHAM NEW YORK
WESTWARD INTO CENTRAL DELAWARE COUNTY.  IN THE PAST HOUR THESE STORMS
HAVE WEAKENED.

THESE THUNDERSTORMS WERE PART OF AN AREA OF SHOWERS AND THUNDERSTORMS
THAT EXTENDED FROM SOUTHERN VERMONT ACROSS NEW YORK AND INTO EXTREME
NORTHEASTERN PENNSYLVANIA.

MOVEMENT WAS EASTERLY AT 35 MILES AN HOUR.
A SEVERE THUNDERSTORM  WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR
SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.  PERSONS IN THESE
AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND
LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINFGS.
JG/FM
Special weather statement, Jun 29, 7:39 PM EDT, 1 hour 36 minutes before
NJZ001-005-007-015-NYZ014>017-300030-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW YORK NY
740 PM EDT FRI JUN 29 1990

...DO NOT USE AFTER 9 PM...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NEW YORK CITY..NORTHERN NEW
JERSEY..SOUTHEASTERN NEW YORK AND LONG ISLAND UNTIL 11 PM TONIGHT.

THUNDERSTORMS EXTENDED ACROSS SULLIVAN COUNTY IN NEW YORK AND NORTHWESTERN
CONNECTICUT.

THESE THUNDERSTORMS WERE PART OF AN AREA OF SHOWERS AND THUNDERSTORMS
THAT EXTENDED FROM SOUTHERN VERMONT ACROSS NEW YORK BETWEEN POUGHKEEPSIE
AND ALBANY AND INTO EASTERN PENNSYLVANIA.

MOVEMENT WAS EASTSOUTHEAST AT 30 MILES AN HOUR.

A SEVERE THUNDERSTORM  WATCH MEANS THAT CONDITIONS ARxE FAVORABLE FOR
SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.  PERSONS IN THESE
AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND
LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
JG/FM
Special weather statement, Jun 29, 8:04 PM EDT, 1 hour 11 minutes before
CTZALL-300200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BRIDGEPORT CT
800 PM EDT FRI JUN 29 1990

......A LINE OF STRONG THUNDERSTORMS WILL MOVE INTO NORTHERN
FAIRFIELD COUNTY WITHIN THE HOUR AND MOVE INTO NEW HAVEN COUNTY SHORTLY
THEREAFTER.

NATIONAL WEATHER SERVICE RADAR SHOWS A LINE OF STRONG THUNDERSTORMS
EXTENDING  SOUTHWEST FROM HARTFORD TO DANBURY  AND IS MOVING SOUTHEAST
AT 30 MPH. THIS LINE OF THUNDERSTORMS WILL  PRODUCE STRONG GUSTY WINDS
...LOCALLY HEAVY DOWNPOURS...FREQUENT LIGHTNING AND POSSIBLY HAIL.

PERSONS  LIVING IN THE FAIRFIELD AND NEW HAVEN COUNTIES SHOULD REMAIN
ON THE ALERT FOR THREATENING WEATHER FOR THE NEXT SEVERAL HOURS AND SEEK
SHELTER UNTIL THIS LINE OF STRONG THUNDERSTORMS CLEARS YOUR AREA.

WALKER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 8:35 PM EDTSevere Thunderstorm WarningOKXWarren55 min
Jun 29, 8:35 PM EDTSevere Thunderstorm WarningOKXMorris, Passaic, Sussex55 min
Jun 29, 9:23 PM EDTSevere Thunderstorm WarningOKXBergen97 min
Jun 29, 8:15 PM EDTSevere Thunderstorm WarningOKXRockland, Westchester75 min
Jun 29, 9:23 PM EDTSevere Thunderstorm WarningOKXRichmond97 min
Jun 29, 9:23 PM EDTSevere Thunderstorm WarningOKXKings, Nassau, Queens97 min
Jun 29, 8:38 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region67 min

Nearby

Severe Thunderstorm Warnings in New York, 1990Every severe thunderstorm warning in 1990

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.