Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 39, NWS New York, NY

August 22, 2017Orange County, New York

NWS New York, NY issued this severe thunderstorm warning at Aug 22, 2017, 9:02 PM EDT for Orange County, New York. It was in force for 43 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 22, 2017, 9:02 PM EDT (01:02 UTC)
Expired: Aug 22, 2017, 9:45 PM EDT
In force: 43 min
Issued by: NWS New York, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Orange County, NY

The watch it was issued in

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

Issued	Product	Office	Lasted
Aug 22, 4:19 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 1.0 hours before the alert went out and 139 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: 412 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1561 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 258 m²/s²
0-3 km storm-relative helicity: 444 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 8.2

Open this sounding in Storm Lab

The text

As transmitted.

550 
WUUS51 KOKX 230102
SVROKX
NYC071-230145-
/O.NEW.KOKX.SV.W.0039.170823T0102Z-170823T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New York NY
902 PM EDT TUE AUG 22 2017

The National Weather Service in Upton NY has issued a

* Severe Thunderstorm Warning for...
  Orange County in southeastern New York...

* Until 945 PM EDT

* At 901 PM EDT, a severe thunderstorm was located over Haven, or 7
  miles northwest of Middletown, moving east at 45 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* This severe thunderstorm will be near, 
  Howells around 905 PM EDT. 
  Middletown around 910 PM EDT. 
  Goshen around 915 PM EDT. 
  Walden and Montgomery around 925 PM EDT. 
  Newburgh and New Windsor around 935 PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Upton NY.

&&

LAT...LON 4150 7448 4157 7442 4163 7426 4160 7425
      4158 7413 4161 7413 4160 7409 4161 7407
      4158 7405 4159 7398 4146 7400 4138 7395
      4137 7396 4133 7463 4136 7469 4139 7471
      4140 7474 4144 7476 4149 7476
TIME...MOT...LOC 0101Z 272DEG 40KT 4151 7455 

HAIL...<.75IN
WIND...60MPH
 
$$

DS

1 follow-up statement

299 
WWUS51 KOKX 230122
SVSOKX

Severe Weather Statement
National Weather Service New York NY
922 PM EDT TUE AUG 22 2017

NYC071-230145-
/O.CON.KOKX.SV.W.0039.000000T0000Z-170823T0145Z/
Orange NY-
922 PM EDT TUE AUG 22 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR NORTHERN ORANGE COUNTY...

At 922 PM EDT, a severe thunderstorm was located over Haven, or near
Middletown, moving east at 50 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

This severe storm will be near...
  Middletown around 925 PM EDT. 
  Montgomery around 935 PM EDT. 
  Walden around 940 PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Upton NY.

&&

LAT...LON 4150 7448 4157 7442 4163 7426 4160 7425
      4158 7413 4161 7413 4160 7409 4161 7407
      4158 7405 4142 7409 4133 7463 4136 7469
      4139 7471 4140 7474 4144 7476 4149 7476
TIME...MOT...LOC 0122Z 264DEG 44KT 4152 7448 

HAIL...<.75IN
WIND...60MPH
 
$$

DS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 22, 8:31 PM EDT	Special Weather Statement	OKX	Orange	44 min
Aug 22, 9:45 PM EDT	Special Weather Statement	OKX	Orange	45 min
Aug 22, 9:51 PM EDT	Areal Flood Advisory	OKX	Orange	3 hr
Aug 22, 10:14 PM EDT	Special Weather Statement	OKX	Bronx, Kings, New York, Queens, Richmond	46 min
Aug 22, 10:25 PM EDT	Special Marine Warning	OKX		65 min
Aug 22, 10:58 PM EDT	Special Weather Statement	OKX	Putnam	47 min
Aug 23, 12:06 PM EDT	Rip Current Statement	OKX	Suffolk	6 hr
Aug 23, 12:38 PM EDT	Small Craft Advisory for Hazardous Seas	OKX		82 min

Nearby

Severe Thunderstorm Warnings in New York, 2017 Every severe thunderstorm warning in 2017

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.