Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 69, NWS New York, NY

August 15, 2012Suffolk County, New York

NWS New York, NY issued this severe thunderstorm warning at Aug 15, 2012, 12:21 PM EDT for Suffolk County, New York. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 15, 2012, 12:21 PM EDT (16:21 UTC)
Expired: Aug 15, 2012, 1:15 PM EDT
In force: 54 min
Issued by: NWS New York, NY
Area: Storm-based polygon

County Suffolk County, NY

The radar

The Brookhaven radar (KOKX), 26 km from the middle of the area, began a volume at 16:21 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, 4.4 hours before the alert went out and 26 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: 1897 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 686 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

942 
WUUS51 KOKX 151621
SVROKX
NYC103-151715-
/O.NEW.KOKX.SV.W.0069.120815T1621Z-120815T1715Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1221 PM EDT WED AUG 15 2012

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

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

* UNTIL 115 PM EDT...

* AT 1216 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
  SOUTHEAST OF ROBERT MOSES STATE PARK...AND MOVING NORTH AT 10 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  CAPTREE STATE PARK...DAVIS PARK...BAY SHORE...ISLIP...SAYVILLE...
  PATCHOGUE...HOLBROOK AND BRENTWOOD

LAT...LON 4066 7325 4066 7322 4070 7322 4070 7325
      4078 7324 4081 7288 4076 7290 4073 7295
      4074 7302 4072 7304 4071 7309 4067 7306
      4072 7292 4070 7294 4065 7307 4062 7325
TIME...MOT...LOC 1621Z 190DEG 9KT 4060 7313

$$

NV

2 follow-up statements

134 
WWUS51 KOKX 151655 RRA
SVSOKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
1255 PM EDT WED AUG 15 2012

NYC103-151715-
/O.CON.KOKX.SV.W.0069.000000T0000Z-120815T1715Z/
SUFFOLK NY-
1255 PM EDT WED AUG 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR SUFFOLK COUNTY...

AT 1251 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR OCEAN BEACH...OR 8 MILES EAST OF ROBERT MOSES STATE 
PARK...MOVING NORTHEAST AT 5 MPH.

LAT...LON 4066 7325 4066 7322 4070 7322 4070 7325
      4078 7324 4081 7288 4076 7290 4073 7295
      4074 7302 4072 7304 4071 7309 4067 7306
      4072 7292 4070 7294 4065 7307 4062 7325
TIME...MOT...LOC 1655Z 232DEG 6KT 4063 7308

$$

NV

475 
WWUS51 KOKX 151716
SVSOKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
116 PM EDT WED AUG 15 2012

NYC103-151723-
/O.EXP.KOKX.SV.W.0069.000000T0000Z-120815T1715Z/
SUFFOLK NY-
116 PM EDT WED AUG 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR SUFFOLK COUNTY WILL EXPIRE AT
115 PM EDT...

THE SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE AS THE 
STORM HAS MADE A RIGHT TURN AND IS EXPECTED TO CONTINUE TO TRACK 
EAST OVER THE NEXT HOUR OR SO...JUST SOUTH OF THE CENTRAL SUFFOLK 
COUNTY BEACHES.   


LAT...LON 4066 7325 4066 7322 4070 7322 4070 7325
      4078 7324 4081 7288 4076 7290 4073 7295
      4074 7302 4072 7304 4071 7309 4067 7306
      4072 7292 4070 7294 4065 7307 4062 7325
TIME...MOT...LOC 1713Z 232DEG 6KT 4065 7305

$$

NV

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 15, 12:38 AM EDT	Special Weather Statement	OKX	Nassau	67 min
Aug 15, 1:28 AM EDT	Areal Flood Advisory	OKX	Nassau, Suffolk	92 min
Aug 15, 1:32 AM EDT	Special Weather Statement	OKX	Suffolk	58 min
Aug 15, 2:21 AM EDT	Special Weather Statement	OKX	Suffolk	54 min
Aug 15, 2:36 AM EDT	Special Marine Warning	OKX		54 min
Aug 15, 3:25 AM EDT	Special Marine Warning	OKX		65 min
Aug 15, 3:28 AM EDT	Special Weather Statement	OKX	Orange	62 min
Aug 15, 4:27 AM EDT	Severe Thunderstorm Warning	OKX	Putnam, Westchester	48 min
Aug 15, 5:17 AM EDT	Areal Flood Advisory	OKX	Putnam, Westchester	88 min
Aug 15, 6:09 AM EDT	Special Marine Warning	OKX		66 min
Aug 15, 7:50 AM EDT	Special Weather Statement	OKX	Suffolk	70 min
Aug 15, 11:01 AM EDT	Special Weather Statement	OKX	Nassau	29 min
Aug 15, 11:16 AM EDT	Flash Flood Warning	OKX	Nassau	89 min
Aug 15, 11:25 AM EDT	Severe Thunderstorm Warning	OKX	Nassau, Suffolk	50 min
Aug 15, 11:59 AM EDT	Special Weather Statement	OKX	Suffolk	61 min
Aug 15, 12:07 PM EDT	Special Marine Warning	OKX		83 min
Aug 15, 12:09 PM EDT	Severe Thunderstorm Warning	OKX	Nassau, Suffolk	51 min
Aug 15, 12:12 PM EDT	Flash Flood Warning	OKX	Suffolk	78 min
Aug 15, 12:21 PM EDT	Areal Flood Advisory	OKX	Suffolk	54 min
Aug 15, 12:50 PM EDT	Special Weather Statement	OKX	New York, Queens	55 min
Aug 15, 1:09 PM EDT	Areal Flood Advisory	OKX	Kings, Queens	81 min
Aug 15, 1:23 PM EDT	Flash Flood Warning	OKX	Kings, Nassau, Queens	80 min
Aug 15, 1:24 PM EDT	Severe Thunderstorm Warning	OKX	Kings, New York, Queens	51 min
Aug 15, 1:33 PM EDT	Special Marine Warning	OKX		87 min
Aug 15, 1:50 PM EDT	Areal Flood Advisory	OKX	Suffolk	85 min
Aug 15, 2:06 PM EDT	Special Weather Statement	OKX	Nassau	54 min
Aug 15, 3:34 PM EDT	Flash Flood Warning	OKX	Kings, Queens	116 min
Aug 15, 3:41 PM EDT	Severe Thunderstorm Warning	OKX	Kings, Nassau, New York, Queens	43 min
Aug 15, 3:57 PM EDT	Special Marine Warning	OKX		69 min
Aug 15, 4:21 PM EDT	Special Weather Statement	OKX	Bronx, New York, Putnam, Rockland, Westchester	54 min
Aug 15, 4:38 PM EDT	Areal Flood Advisory	OKX	Orange, Rockland, Westchester	112 min
Aug 15, 4:45 PM EDT	Areal Flood Advisory	OKX	Putnam	90 min
Aug 15, 4:48 PM EDT	Severe Thunderstorm Warning	OKX	Rockland, Westchester	57 min
Aug 15, 5:11 PM EDT	Special Marine Warning	OKX		2 hr
Aug 15, 5:37 PM EDT	Special Weather Statement	OKX	Richmond	53 min
Aug 15, 5:45 PM EDT	Flash Flood Warning	OKX	Rockland, Westchester	50 min
Aug 15, 7:13 PM EDT	Special Weather Statement	OKX	Orange	62 min

Nearby

Severe Thunderstorm Warnings in New York, 2012 Every severe thunderstorm warning in 2012

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.