Alert archive / New York / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 59, NWS New York, NY

August 29, 1990Bronx County, New York County, New York

NWS New York, NY issued this severe thunderstorm warning at Aug 29, 1990, 12:06 AM EDT for Bronx County, New York County, New York. It was in force for 69 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 29, 1990, 12:06 AM EDT (04:06 UTC)
Expired
Aug 29, 1990, 1:15 AM EDT
In force
69 min
Issued by
NWS New York, NY
Area
Whole counties

Counties Bronx County, NY, New York County, NY

The radar

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

What was reported inside it

TimeReportWhereRemark
Aug 29, 12:26 AM EDTThunderstorm Wind 0Bronx, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 00:00Z, 4.1 hours before the alert went out and 157 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, Atlantic City In, NJ at 00:00Z on 1990-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1445 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, Atlantic City In, NJ at 00:00Z on 1990-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.193958Sfc1 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
1445 J/kg
Mixed-layer CIN
-134 J/kg
Mixed-layer LCL
1276 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KNYC 290407 RRA
SVRNYC
NYC005-047-059-061-081-085-290515-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1206 AM EDT WED AUG 29 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 115 AM EDT FOR
PEOPLE IN THE FOLLOWING COUNTIES

   IN THE STATE OF NEW YORK
      BRONX...KINGS...NASSAU...NEW YORK...QUEENS...RICHMOND

...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTIES JUST MENTIONED

A LINE OF POTENTIALLY SEVERE THUNDERSTORMS IS APPROACHING THE
NEW YORK CITY METROPOLITAN AREA FROM THE WEST. THIS LINE HAS
HAD A HISTORY OF DAMAGING WINDS AND DANGEROUS CLOUD TO GROUND
LIGHTNING.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55
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.  HEAV_Y RAINS FLOOD ROADWAYS QUICKLY...
AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.

 RS

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, Aug 28, 9:35 PM EDT, 2 hours 31 minutes before
NJ001-NJ005-NJ007-NJ015-NYZ014>017-290300-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NORTHERN NEW JERSEY AND EXTREME SOUTHEASTERN NEW YORK
NATIONAL WEATHER SERVICE NEW YORK NY
930 PM EDT TUE AUG 28 1990

...DO NOT USE AFTER 11 PM EDT...

...STRONG THUNDERSTORMS MOVING INTO HUDSON VALLEY...

AT 930 STRONG THUNDERSTORMS ACCOMPANIED BY FREQUENT CLOUD TO GROUND
LIGHTNING...STRONG GUSTY WINDS AND HEAVY RAINFALL WERE OVER THE
HUDSON VALLEY FROM 20 MILES WEST OF GLENS FALLS SOUTHWEST THROUGH 20 MILES
NORTH OF SCRANTON PENNSYLVANIA.

THE STRONGEST THUNDERSTORMS WERE IN A LINE FROM BAINBRIDGE IN NORTHERN
DELAWARE TO DEPOSIT IN BROOME COUNTIES. THIS LINE ALSO EXTENDED INTO
SUSQUEHANNA COUNTY OF PENNSYLVANIA.

THERE WERE A FEW SCATTERED SHOWERS AND THUNDERSTORMS OVER EASTERN
PENNSYLVANIA OVER BRADFORD COUNT.

MOVEMENT OF THE SHOWERS AND THUNDERSTORMS WERE SOUTHEAST AT 45 MILES AN
HOUR.

ALL PERSONS IN THE EFFECTED AREAS SHOULD SEEK A PLACE OF SAFETY IF
THREATNING CONDITIONS ARE OBSERVED.

GSK
Special weather statement, Aug 28, 10:27 PM EDT, 1 hour 39 minutes before
CTZ001002-004-005-290330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BRIDGEPORT CT
1026 PM EDT TUE AUG 28 1990

THUNDERSTORMS WERE ON THE DOORSTEP OF WESTERN CONNECTICUT AND SOON WILL
BE KNOWN BY PERSONS IN FAIRFIELD COUNTY.

THUNDERSTORMS WITH INTENSE RAIN...STRONG WINDS AND FREQUENT CLOUD TO
GROUND LIGHTNING WAS MOVING ACROSS THE HUDSON VALLEY FROM JUST NORTH
AND WEST OF POUGHKEEPSIE NEW YORK.  THIS LINE OF STROMS WAS MOVING
SOUTHEAST AT 40 MPH AND SHOULD REACH NORTHERN FAIRFIELD COUNTY
BETWEEN 11 AND 1115 PM AND THE REST OF THE COUNTY SOON AFTER.

PERSONS IN FAIRFIELD AS WELL AS NEW HAVEN COUNTIES SHOULD BE IN A
PLACE OF SAFETY IF THREATNING CONDITIONS ARE OBSERVED.

REMEMBER fLIGHTNING CAN BE A KILLER.

HAZZARD
Special weather statement, Aug 28, 10:30 PM EDT, 1 hour 36 minutes before
NJ001-NJ005-NJ007-NJ015-NYZ014>017-290300-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NORTHERN NEW JERSEY AND EXTREME SOUTHEASTERN NEW YORK
NATIONAL WEATHER SERVICE NEW YORK NY
1030 PM EDT TUE AUG 28 1990

...DO NOT USE AFTER 12 MIDNIGHT EDT...

...STRONG THUNDERSTORMS MOVING INTO LOWER HUDSON VALLEY...

AT 1030 STRONG THUNDERSTORMS ACCOMPANIED BY FREQUENT CLOUD TO GROUND
LIGHTNING...STRONG GUSTY WINDS AND HEAVY RAINFALL WERE OVER THE
LOWER HUDSON VALLEY FROM 20 MILES SOUTHWEST OF GLENS FALLS SOUTHWEST
THROUGH WILLIAMSPORT PENNSYLVANIA.

THE STRONGEST THUNDERSTORMS WERE OVER SULLIVAN COUNTY OF PENNSYLVANIA.
ANOTHER STRONG THUNDERSTORM WAS OVER SULLIVAN COUNTY OF NEW YORK STATE
RIGHT NEAR LIVINGSTON MANOR. AT THE PRESENT RATE OF SPEED AND DIRECTION
MOVEMENT THIS STROM SHOULD BE MOVING INTO LIBERTY AT ANY TIME AND INTO
MONTICELLO WITHIN THE THE NEXT HALF HOUR.

MOVEMENT OF THE SHOWERS AND THUNDERSTORMS WERE SOUTHEAST AT 45 MILES AN
HOUR.

ALL PERSONS IN THE EFFECTED AREAS SHOULD SEEK A PLACE OF SAFETY IF
THREATNING CONDITIONS ARE OBSERVED.

GSK
Special weather statement, Aug 28, 11:30 PM EDT, 36 minutes before
NJ001-NJ005-NJ007-NJ015-NYZ014>017-290500-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NORTHERN NEW JERSEY AND EXTREME SOUTHEASTERN NEW YORK
NATIONAL WEATHER SERVICE NEW YORK NY
1130 PM EDT TUE AUG 28 1990

...DO NOT USE AFTER 1 AM EDT...

...STRONG THUNDERSTORMS MOVING INTO NORTHERN NEW JERSEY AND PENNSYLVANIA.

AT 1130 STRONG THUNDERSTORMS ACCOMPANIED BY FREQUENT CLOUD TO GROUND
LIGHTNING...STRONG GUSTY WINDS AND HEAVY RAINFALL WERE OVER ORANGE
COUNTY OF NEW YORK STATE. THIS AREA EXTENDED INTO SUSSEX COUNTY OF NEW
JERSEY AND ALSO INTO MONROE COUNTY OF PENNSYLVANIA.

THE STRONGEST THUNDERSTORMS WERE OVER BERKS COUNTY OF EASTERN PENNSYLVANIA
NEAR HAMBURG. ANOTHER STRONG THUNDERSTORM WAS OVER STROUDSBURG IN THE
POCONOS. STRONG THUNDERSTORMS WERE OCCURRING OVER ORANGE COUNTY OF NEW
YORK STATE.
OTHER SHOWERS AND THUNDERSTORMS WERE OVER THE WESTERN THIRD OF
MASSACHUSETTS AND THE WESTERN HALF OF CONNECTICUT.

THE THUNDERSTORMS WERE MOLVING SOUTHEAST AT 45 MILES AN HOUR.

ALL PERSONS IN THE EFFECTED AREAS SHOULD SEEK A PLACE OF SAFETY IF
THREATNING CONDITIONS ARE OBSERVED.

GSK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 11:44 PM EDTSevere Thunderstorm WarningOKXRockland, Westchester61 min
Aug 29, 12:06 AM EDTSevere Thunderstorm WarningOKXKings, Nassau, Queens69 min
Aug 29, 12:06 AM EDTSevere Thunderstorm WarningOKXRichmond69 min
Aug 29, 12:23 AM EDTSevere Thunderstorm WarningOKXSuffolk67 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.