Alert archive / New York / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 53, NWS New York, NY

June 27, 2002Richmond County, New York; Union County, New Jersey

NWS New York, NY issued this severe thunderstorm warning at Jun 27, 2002, 5:36 PM EDT for Richmond County, New York; Union County, New Jersey. It was in force for 39 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: Jun 27, 2002, 5:36 PM EDT (21:36 UTC)
Expired: Jun 27, 2002, 6:15 PM EDT
In force: 39 min
Issued by: NWS New York, NY
Area: Whole counties

Counties Union County, NJ, Richmond County, NY

The radar

The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 21:39 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.

What was reported inside it

Time	Report	Where	Remark
Jun 27, 5:55 PM EDT	Thunderstorm Wind 52 E	Plainfield, NJ	As a severe thunderstorm moved rapidly east, it produced high winds that downed trees and wires in both Plainfield and Union.

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.

Issued	Product	Office	Lasted
Jun 27, 2:00 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.6 hours before the alert went out and 118 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: 1079 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 922 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 129 m²/s²
Significant tornado parameter: 0.4
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 272136
SVROKX
NJC039-NYC085-272215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
536 PM EDT THU JUN 27 2002

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN UNION COUNTY IN NORTHEAST NEW JERSEY
  RICHMOND COUNTY IN SOUTHEAST NEW YORK

* UNTIL 615 PM EDT.

* AT 528 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 18 MILES WEST OF COLONIA...MOVING EAST AT 50
  MPH.

* THE SEVERE THUNDERSTORM WILL BE IN THE VICINITY OF...
  CLARK AND COLONIA AROUND 550 PM.
  LINDEN AND 5 MILES NORTH OF HUGUENOT AROUND 555 PM.
  TODT HILL AROUND 600 PM.
  TOMPKINSVILLE AND VERRAZANO-NARROWS BRIDGE AROUND 605 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.

INTENSE LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

$$

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM THIS 
EVENING FOR NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK.

LAT...LON 4069 7455 4047 7465 4053 7405 4061 7401

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 Jun 27, 2:45 PM EDT, 2 hours 51 minutes earlier.

Area forecast discussion, Jun 27, 2:45 PM EDT, 2 hours 51 minutes before

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE NEW YORK NY
245 PM EDT THU JUN 27 2002

ZONES ALREADY SENT OUT TO ACCOUNT FOR SPC WATCH WHICH INCLUDES THE
LOWER HUDSON VLY...NE NJ AND METRO NY.  CONNECTICUT AND SUFFOLK
COUNTY ZONES LEFT OUT.

HERE WE GO AGAIN. WHAT LITTLE CAP THERE WAS HAS ERODED ACROSS THE
FORECAST AREA WITH SFC BASED LI/S IN THE NEIGHBORHOOD OF -9 AND THE
12Z OKX SOUNDING 3389 J/KG CAPES UNMODIFIED.  NEEDLESS TO STAY MDT
TO HIGH INSTABILITY IN PLACE WITH THE LOW-LEVEL FOCUS ONCE AGAIN IN
THE FORM OF A LEE TROF OVER E CNTRL PA. DEVELOPING CONVECTION SHOULD
MOVE INTO WRN PORTIONS OF THE CWA IN THE NEXT COUPLE OF HOURS.

EXPECT A RATHER ACTIVE NIGHT WITH THE FIRST BATCH OF CONVECTION
ENDING THIS EVENING... AND THEN GIVING WAY TO AN ORGANIZED LINE/MCS
TYPE SYS IN THE OVERNIGHT HOURS. BOTH THE UPR TROF AND RRQ OF THE
300 MB JET COINCIDE WITH THE PRE-FRONTAL TROF/SFC CDFNT...WHICH
MOVES THROUGH THE REGION BETWEEN 6Z AND 14Z FRI.  THE SLOW MOVEMENT
ATTRIBUTED TO ADDITIONAL SHORT WAVE ENERGY DIGGING DOWN THE BACKSIDE
OF THE TROF.  IN FACT...THE BASE OF THE TROF DOES NOT MOVE OFF THE
COAST UNTIL AROUND 00Z SAT.  SO CLOUDS WILL LINGER A WHILE FRI MRNG
WITH A WDLY SCT SHRA POSSIBLY CLIPPING THE EAST END OF LI AND ERN
CT. NW FLOW AND WEAK CAA ON FRI SHOULD STILL ALLOW THE MERCURY TO
RISE TO ABOVE NORMAL LEVELS WITH COASTAL AREAS HEATING UP AS WELL.
BUILDING HEIGHTS ALOFT AND SFC HI PRES MOVE IN FOR THE WEEKEND.
WHILE THE AIRMASS WILL BE DRIER... TEMPS WILL STILL BE ABOVE NORMAL
WITH RIDGING ALOFT AND ADIABATIC HEATING.  NIGHTS WILL BE
CONSIDERABLY COOLER AND MORE COMFORTABLE.

NGM MOS TEMPS REASONABLE WITH MINOR ADJUSTMENTS MADE....SPECIFICALLY
TO ACCOUNT FOR MORE COOLING FRI NIGHT INTO SAT MRNG.

MARINE: SCA REMAINS UP ON THE OCEAN FOR ROUGH SEAS.  BUOY 44025
REMAINS AT 5 FT. CONDITIONS WILL IMPROVE FOLLOWING FRONTAL PASSAGE
FRIDAY MORNING.

.OKX...
CT...NONE.
NJ...SEVERE THUNDERSTORM WATCH FOR NORTHEAST NEW JERSEY UNTIL 8 PM.
NY...SEVERE THUNDERSTORM WATCH FOR SOUTHEAST NEW YORK...EXCEPT
SUFFOLK COUNTY UNTIL 8 PM.
MARINE...SCA FOR ROUGH SEAS ANZ350-353-355.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 5:12 PM EDT	Special Marine Warning	OKX		78 min

Nearby

Severe Thunderstorm Warnings in New York, 2002 Severe Thunderstorm Warnings in New Jersey, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.