Alert archive / New York / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 14, NWS New York, NY

May 27, 2002Putnam County, New York

NWS New York, NY issued this severe thunderstorm warning at May 27, 2002, 6:34 PM EDT for Putnam County, New York. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 27, 2002, 6:34 PM EDT (22:34 UTC)
Expired: May 27, 2002, 7:30 PM EDT
In force: 56 min
Issued by: NWS New York, NY
Area: Whole counties

County Putnam County, NY

The radar

The Brookhaven radar (KOKX), 97 km from the middle of the area, began a volume at 22:36 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, 10.6 hours before the alert went out and 97 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 115 J/kg
Mixed-layer CIN: -177 J/kg
Mixed-layer LCL: 584 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 90 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KOKX 272234
SVROKX
NYC079-272330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
634 PM EDT MON MAY 27 2002

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PUTNAM COUNTY IN SOUTHEAST NEW YORK

* UNTIL 730 PM EDT.

* AT 631 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES NORTH OF COLD SPRING...MOVING EAST AT
  10 MPH.

* THE SEVERE THUNDERSTORM WILL BE IN THE VICINITY OF...
  6 MILES NORTH OF COLD SPRING AROUND 645 PM.
  FAHNESTOCK STATE PARK AROUND 710 PM.
  4 MILES SOUTHWEST OF FARMER MILLS AND 5 MILES NORTHWEST OF CARMEL
  AROUND 730 PM.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER.
REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WINDS IN EXCESS
OF 55 MPH...LARGE DAMAGING HAIL...DEADLY LIGHTNING...AND VERY HEAVY
RAIN.

$$

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN UPTON NY.

LAT...LON 4162 7401 4140 7397 4135 7369 4153 7359

SR/MH/JK

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.

NWS New York, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at May 27, 2:55 PM EDT, 3 hours 39 minutes earlier.

Area forecast discussion, May 27, 2:55 PM EDT, 3 hours 39 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW YORK NY
255 PM EDT MON MAY 27 2002

WITH WEAK BOUNDARY HANGING AROUND FROM NE NJ SOUTHWARD. ALSO...TSTMS
DEVELOPING ON SEA BREEZE BOUNDARY IN NJ AND ACROSS PORTIONS OF THE
LOWER HUDSON VALLEY. WILL KEEP MENTION OF A SHOWER OR TSTM INTO THE
EVENING.

OTHERWISE...NO AIRMASS CHANGE NEXT FEW DAYS AS LIGHT ONSHORE FLOW
CONTINUES. WE SAW DENSE FOG ACROSS LI AND CT LAST NIGHT. GIVEN THIRD
NIGHT OF LIGHT ONSHORE FLOW...WILL BE ISSUING A DENSE FOG ADVISORY
EVERYWHERE TONIGHT. LOOKING AT ETA FORECAST SOUNDINGS AND NGM MOS
GUIDANCE...IT LOOKS LIKE LOW LEVEL SATURATION OCCURS RATHER QUICKLY
THIS EVENING. I BELIEVE AFTER 00Z THE FOG WILL REDEVELOP...OR MOVE
BACK IN OFF THE WATER. AREAS WELL NORTH AND WEST MAY TAKE A COUPLE
OF HOURS LONGER...BUT DO FEEL FOG WILL BE WIDESPREAD. COOR WITH PHI
AND BOS.

THEN...MORNING CLOUDS AND FOG BURN OFF TO PARTLY SUNNY SKIES ON
TUESDAY. WITH LACK OF BOUNDARY OR TRIGGER...WILL LEAVE FORECAST DRY
EVEN THOUGH SOME OF THE MODELS DO SHOW SOME SHOWER ACTIVITY AND QPF
OUTPUT NORTHWEST ZONES. 12KM SUSB MM5 BRINGS SOME SHOWER/TSTM
ACTIVITY CLOSE INTO NORTHWEST NJ...THEN AREA DISSIPATES.

MORE FOG TUESDAY NIGHT AND PARTLY SUNNY WEDNESDAY AS PATTERN REMAINS.

WILL CONTINUE WITH SHOWER/THUNDERSTORM THREAT FOR FRIDAY WITH NEXT
COLD FRONT AND SHORTWAVE...BUT MAY MOVE TIMING BACK IN THE GRIDS
UNTIL FRIDAY AFTERNOON AND INTO THE EVENING. THEN DRY AND SEASONABLE.
MAYBE A FEW DEGREES BELOW NORMAL THIS WEEKEND.

TEMPS: GUIDANCE NUMBERS CLOSE UNTIL WEDNESDAYS HIGHS. MAVS MUCH
LOWER THAN FWCS AND ETA MOS. IT IS PICKING UP ON LOW CLOUDS ALL
DAY. I DO NOT AGREE WITH THAT AND WILL GO CLOSER TO NGM...ETA
SOLUTIONS.

MARINE: QUIET WEATHER PATTERN CONTINUES. WINDS AND SEAS SHOULD
COOPERATE....BUT VSBY WILL BE A PROBLEM FOR MARINERS.

NUMBERS BELOW...

FCSTID = 30
EWR   61  78  63  75 /  30  10  10  10
MGJ   57  77  58  75 /  40  10  10  10
DXR   57  77  57  75 /  30  10  10  10
NYC   61  77  63  75 /  30  10  10  10
ISP   59  75  59  74 /  30  10  10  10
GON   56  72  56  73 /  30  10  10  10

.OKX...
CT...DENSE FOG ADVISORY FROM 900 PM EDT UNTIL 800 AM EDT TUESDAY
     FOR ZONES CTZ005>012.

NJ...DENSE FOG ADVISORY FROM 1100 PM EDT UNTIL 800 AM EDT TUESDAY
     FOR ZONES NJZ002>006...NJZ011.

NY...DENSE FOG ADVISORY FROM 900 PM EDT UNTIL 800 AM EDT TUESDAY
     FOR ZONES NYZ072>081.
     DENSE FOG ADVISORY FROM 1100 PM EDT UNTIL 800 AM EDT TUESDAY
     FOR ZONES NYZ067>071.

PW

Nearby

Severe Thunderstorm Warnings in New York, 2002 Every severe thunderstorm warning in 2002

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.