Alert archive / New York / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 71, NWS New York, NY

August 15, 20124 counties in New York

NWS New York, NY issued this severe thunderstorm warning at Aug 15, 2012, 3:41 PM EDT for 4 counties in New York. It was in force for 43 min. 4 reports 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: Aug 15, 2012, 3:41 PM EDT (19:41 UTC)
Expired: Aug 15, 2012, 4:24 PM EDT
In force: 43 min
Issued by: NWS New York, NY
Area: Storm-based polygon

Counties Kings County, NY, Nassau County, NY, New York County, NY, Queens County, NY

What was reported inside it

Time	Report	Where	Remark
Aug 15, 3:50 PM EDT	HAIL 1.5	Maspeth, NY
Aug 15, 4:00 PM EDT	HAIL 1	Sunnyside, NY
Aug 15, 4:05 PM EDT	HAIL 0.88	Middle Village, NY	PUBLIC
Aug 15, 4:15 PM EDT	TSTM WND DMG	Clinton Hill, NY	LARGE TREE BRANCH DOWN ON CAR AND ACROSS CLINTON AVE NEAR GREEN AVE

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.7 hours before the alert went out and 82 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.

364 
WUUS51 KOKX 151941
SVROKX
NYC047-059-061-081-152045-
/O.NEW.KOKX.SV.W.0071.120815T1941Z-120815T2045Z/

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

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  QUEENS COUNTY IN SOUTHEAST NEW YORK...
  WESTERN NASSAU COUNTY IN SOUTHEAST NEW YORK...
  NEW YORK (MANHATTAN) COUNTY IN SOUTHEAST NEW YORK...
  KINGS (BROOKLYN) COUNTY IN SOUTHEAST NEW YORK...

* UNTIL 445 PM EDT...

* AT 340 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 NEAR
  CROWN HEIGHTS...AND MOVING EAST AT 10 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  CANARSIE...HOWARD BEACH...OZONE PARK...JACKSON HEIGHTS...FOREST
  HILLS...FLUSHING...JAMAICA...WHITESTONE...CLEARVIEW EXPRESSWAY...
  BAYSIDE...LITTLE NECK...ELMONT...SANDS POINT...MANHASSET AND GREAT
  NECK

LAT...LON 4063 7400 4072 7402 4081 7382 4080 7377
      4083 7376 4084 7374 4086 7369 4068 7364
TIME...MOT...LOC 1942Z 253DEG 10KT 4068 7394

$$

NV

1 follow-up statement

258 
WWUS51 KOKX 152024
SVSOKX

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

NYC047-059-061-081-152033-
/O.CAN.KOKX.SV.W.0071.000000T0000Z-120815T2045Z/
KINGS (BROOKLYN) NY-NEW YORK (MANHATTAN) NY-NASSAU NY-QUEENS NY-
424 PM EDT WED AUG 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR QUEENS...WEST CENTRAL
NASSAU...NEW YORK (MANHATTAN) AND KINGS (BROOKLYN) COUNTIES IS
CANCELLED...

THE SEVERE THUNDERSTORMS WARNING HAS BEEN CANCELLED AS THE STORMS 
HAS WEAKENED.

LAT...LON 4063 7400 4072 7402 4081 7382 4080 7377
      4083 7376 4084 7374 4086 7369 4068 7364
TIME...MOT...LOC 2023Z 253DEG 10KT 4071 7380

$$

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, 12:21 PM EDT	Severe Thunderstorm Warning	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, 3:57 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.