Alert archive / New York / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 9, NWS New York, NY

February 25, 2016Suffolk County, New York

NWS New York, NY issued this severe thunderstorm warning at Feb 25, 2016, 1:18 AM EST for Suffolk County, New York. It was in force for 42 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Feb 25, 2016, 1:18 AM EST (06:18 UTC)
Expired: Feb 25, 2016, 2:00 AM EST
In force: 42 min
Issued by: NWS New York, NY
Area: Storm-based polygon

County Suffolk County, NY

The radar

The Brookhaven radar (KOKX), 30 km from the middle of the area, began a volume at 06:19 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
Feb 25, 1:34 AM EST	TSTM WND DMG	Riverhead, NY	WIRES DOWN ON SOUND AVENUE AND WARNER DRIVE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Feb 24, 7:44 PM EST	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 6.3 hours before the alert went out and 30 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: 38 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 479 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 529 m²/s²
0-3 km storm-relative helicity: 504 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

As transmitted.

779 
WUUS51 KOKX 250618
SVROKX
NYC103-250700-
/O.NEW.KOKX.SV.W.0009.160225T0618Z-160225T0700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
118 AM EST THU FEB 25 2016

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL SUFFOLK COUNTY IN SOUTHEASTERN NEW YORK...

* UNTIL 200 AM EST

* AT 117 AM EST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM
  WAS LOCATED 13 MILES SOUTHEAST OF DAVIS PARK...OR 18 MILES SOUTH OF
  PATCHOGUE...AND MOVING NORTHEAST AT 75 MPH.

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  CENTER MORICHES AND MASTIC BEACH AROUND 130 AM EST. 
  WESTHAMPTON AND MANORVILLE AROUND 135 AM EST. 
  RIVERHEAD AND SHINNECOCK HILLS AROUND 140 AM EST. 
  MATTITUCK AROUND 145 AM EST. 
  SOUTHOLD...SHELTER ISLAND...GREENPORT AND PECONIC AROUND 150 AM EST. 

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
AQUEBOGUE...QUOGUE...LAUREL...CUTCHOGUE...FLANDERS...HAMPTON BAYS...SOUND
AVENUE...NORTH HAVEN...EAST QUOGUE AND JAMESPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...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. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 4076 7280 4074 7287 4098 7272 4117 7219
      4109 7238 4110 7235 4110 7234 4104 7225
      4103 7230 4086 7240 4085 7246 4086 7243
      4088 7250 4087 7249 4083 7257 4084 7248
      4083 7255 4073 7288
TIME...MOT...LOC 0617Z 210DEG 73KT 4051 7289 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 24, 9:30 PM EST	Special Weather Statement	OKX	Orange, Putnam, Rockland	60 min
Feb 24, 10:28 PM EST	Severe Thunderstorm Warning	OKX	Bronx, Kings, New York, Queens, Richmond, Westchester	62 min
Feb 24, 10:35 PM EST	Severe Thunderstorm Warning	OKX	Orange, Putnam, Rockland, Westchester	55 min
Feb 24, 10:54 PM EST	Areal Flood Advisory	OKX	Bronx, Kings, New York, Queens, Richmond, Westchester	3 hr
Feb 24, 11:08 PM EST	Special Marine Warning	OKX		52 min
Feb 24, 11:26 PM EST	Severe Thunderstorm Warning	OKX	Bronx, Kings, Nassau, New York, Orange, Putnam and 4 more	64 min
Feb 24, 11:28 PM EST	Areal Flood Advisory	OKX	Orange, Putnam, Rockland, Westchester	3 hr
Feb 24, 11:32 PM EST	Areal Flood Advisory	OKX	Nassau	3 hr
Feb 25, 12:17 AM EST	Special Marine Warning	OKX		58 min
Feb 25, 12:43 AM EST	Special Marine Warning	OKX		32 min
Feb 25, 12:57 AM EST	Special Marine Warning	OKX		93 min
Feb 25, 1:40 AM EST	Special Marine Warning	OKX		35 min
Feb 25, 2:06 AM EST	Severe Thunderstorm Warning	OKX	Suffolk	54 min
Feb 25, 2:16 AM EST	Areal Flood Advisory	OKX	Rockland	14 hr
Feb 25, 2:20 AM EST	River Flood Warning	OKX	Orange, Rockland	30 hr
Feb 25, 4:00 AM EST	Small Craft Advisory	OKX		44 hr

Nearby

Severe Thunderstorm Warnings in New York, 2016 Every severe thunderstorm warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.