Alert archive / New York / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 18, NWS New York, NY

May 29, 1998Putnam County, New York; Greater Bridgeport Planning Region, Connecticut

NWS New York, NY issued this severe thunderstorm warning at May 29, 1998, 6:01 PM EDT for Putnam County, New York; Greater Bridgeport Planning Region, Connecticut. It was in force for 49 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 29, 1998, 6:01 PM EDT (22:01 UTC)
Expired
May 29, 1998, 6:50 PM EDT
In force
49 min
Issued by
NWS New York, NY
Area
Whole counties

Counties Greater Bridgeport Planning Region, CT, Putnam County, NY

What was reported inside it

TimeReportWhereRemark
May 29, 6:20 PM EDTThunderstorm Wind 50Countywide, 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.

IssuedProductOfficeLasted
May 29, 5:00 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.0 hours before the alert went out and 74 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 1998-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 1998-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1392 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
111 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.

713 
WUUS1 KNYC 292203 RRA
SVRNYC
CTC001-NYC079-292250-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
601 PM EDT FRI MAY 29 1998

THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PUTNAM COUNTY IN SOUTHEASTERN NEW YORK
  NORTHERN FAIRFIELD COUNTY IN SOUTHWESTERN CONNECTICUT

* UNTIL 650 PM EDT

* THE FOLLOWING LOCATIONS ARE IN THE PATH OF THIS STORM
  BREWSTER...   PUTNAM LAKE...
  NEW FAIRFIELD...   RIDGEFIELD...   DANBURY...
  BETHEL...   NEWTOWN...   EASTON...   MONROE...
  TRUMBULL...   SHELTON.

* AT 558 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR IN UPTON
  NY INDICATED A SEVERE THUNDERSTORM 7 MILES NORTHWEST OF CARMEL OR
  7 MILES WEST OF PATTERSON MOVING EAST AT 45 MPH.

DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

MET/SDR

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, May 29, 4:00 PM EDT, 2 hours 1 minute before
SPECIAL WEATHER STATEMENT
AND WEATHER MAP DISCUSSION FOR EXTREME SOUTHEAST NEW YORK...
NORTHEAST NEW JERSEY AND SOUTHERN CONNECTICUT
NATIONAL WEATHER SERVICE NEW YORK NY
400 PM EDT FRI MAY 29 1998

...THERE IS A CHANCE FOR STRONG THUNDERSTORMS THROUGH EARLY
TONIGHT...

WITH A WARM...MOIST...UNSTABLE AIRMASS IN PLACE...LINES OF SCATTERED
THUNDERSTORMS WILL MOVE SOUTHEAST ACROSS THE REGION THROUGH EARLY
TONIGHT AS A COLD FRONT APPROACHES. A FEW THUNDERSTORMS MAY PRODUCE
STRONG GUSTY WINDS AND HEAVY DOWNPOURS. THE AREA MOST VULNERABLE TO
THESE STORMS EXTENDS FROM NORTHWEST TO NORTHEAST OF NEW YORK CITY.

FAIR WEATHER WILL RETURN FOR SATURDAY...AS A HIGH PRESSURE SYSTEM
BUILDS EAST ACROSS THE AREA. WITH ABUNDANT SUNSHINE AND LOW
HUMIDITY...TEMPERATURES WILL QUICKLY CLIMB INTO THE LOWER AND MID
80S EXCEPT RIGHT ALONG THE IMMEDIATE SHORES WHERE LIGHT SEABREEZES
WILL DEVELOP.

THIS FAIR WEATHER WILL BE SHORT-LIVED AS A LOW PRESSURE SYSTEM
RAPIDLY INTENSIFIES AS IT MOVES EAST OVER THE GREAT LAKES. A WARM
FRONT WILL DEVELOP SOUTHWEST OF THE AREA SATURDAY NIGHT AND MOVE
NORTHEAST TOWARD THE REGION SUNDAY. CLOUDS WILL INCREASE IN RESPONSE
TO THIS AND THE CHANCE FOR SHOWERS AND THUNDERSTORMS WILL INCREASE
DURING SUNDAY. UNSETTLED WEATHER WILL CONTINUE THROUGH MONDAY AS THE
COLD FRONT ASSOCIATED WITH THIS LOW MOVES OVER THE AREA.

KEEP TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO OR TELEVISION FOR
UPDATES CONCERNING THIS SEVERE THUNDERSTORM POTENTIAL. KEEP AN EYE
TO THE SKY FOR THREATENING WEATHER. THUNDERSTORMS WILL MOVE IN AN
EAST DIRECTION...SO LOOK TO THE NORTH AND NORTHWEST.

GC

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 6:11 PM EDTSevere Thunderstorm WarningOKXOrange49 min
May 29, 7:31 PM EDTSevere Thunderstorm WarningOKXRichmond64 min
May 29, 6:25 PM EDTSevere Thunderstorm WarningOKXNaugatuck Valley Planning Region60 min
May 29, 6:39 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region46 min

Nearby

Severe Thunderstorm Warnings in New York, 1998Severe Thunderstorm Warnings in Connecticut, 1998Every severe thunderstorm warning in 1998

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.