Alert archive / New York / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 72, NWS Buffalo, NY

August 8, 20194 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 8, 2019, 1:06 PM EDT for 4 counties in New York. It was in force for 54 min. 2 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 8, 2019, 1:06 PM EDT (17:06 UTC)
Expired: Aug 8, 2019, 2:00 PM EDT
In force: 54 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cayuga County, NY, Ontario County, NY, Oswego County, NY, Wayne County, NY

What was reported inside it

Time	Report	Where	Remark
Aug 8, 1:11 PM EDT	TSTM WND DMG	3 Ne Hopewell Center, NY	TREE DOWN ON TAYLOR ROAD. TIME ESTIMATED.
Aug 8, 1:54 PM EDT	MARINE TSTM WIND 41	Oswego, NY

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
Aug 8, 12:37 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 5.1 hours before the alert went out and 163 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: 39 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1232 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

362 
WUUS51 KBUF 081706
SVRBUF
NYC011-069-075-117-081800-
/O.NEW.KBUF.SV.W.0072.190808T1706Z-190808T1800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
106 PM EDT Thu Aug 8 2019

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Wayne County in western New York...
  Cayuga County in central New York...
  Southwestern Oswego County in central New York...
  Northeastern Ontario County in western New York...

* Until 200 PM EDT..

* At 105 PM EDT, severe thunderstorms were located along a line
  extending from near Sodus to near Canandaigua, moving east at 35
  mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Oswego, Fulton, Fair Haven Beach State Park, Newark, Williamson,
  Marion, Lyons, Clifton Springs, Clyde and Phelps.

 This includes Interstate 90 between exits 42 and 40.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4354 7639 4323 7637 4323 7648 4311 7647
      4310 7650 4303 7649 4301 7696 4288 7696
      4288 7725 4332 7716 4333 7712 4331 7697
      4335 7681 4348 7659
TIME...MOT...LOC 1705Z 257DEG 28KT 4327 7706 4290 7734 

HAIL...0.75IN
WIND...60MPH
 
$$

TMA

2 follow-up statements

291 
WWUS51 KBUF 081729
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
129 PM EDT Thu Aug 8 2019

NYC011-069-075-117-081800-
/O.CON.KBUF.SV.W.0072.000000T0000Z-190808T1800Z/
Wayne NY-Cayuga NY-Oswego NY-Ontario NY-
129 PM EDT Thu Aug 8 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EDT
FOR EASTERN WAYNE...CAYUGA...SOUTHWESTERN OSWEGO AND NORTHEASTERN
ONTARIO COUNTIES...

At 128 PM EDT, severe thunderstorms were located along a line
extending from Chimney Bluffs State Park to near Geneva, moving east
at 30 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Oswego, Fulton, Fair Haven Beach State Park, Newark, Lyons, Clyde,
Phelps, Sodus, Weedsport and Cato.

 This includes Interstate 90 between exits 42 and 40.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4354 7639 4323 7637 4323 7648 4315 7647
      4314 7649 4311 7647 4310 7650 4303 7649
      4301 7696 4288 7697 4288 7711 4332 7704
      4331 7697 4335 7681 4348 7659
TIME...MOT...LOC 1728Z 260DEG 28KT 4328 7692 4292 7700 

HAIL...0.75IN
WIND...60MPH
 
$$

TMA

085 
WWUS51 KBUF 081804
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
204 PM EDT Thu Aug 8 2019

NYC011-069-075-117-081814-
/O.EXP.KBUF.SV.W.0072.000000T0000Z-190808T1800Z/
Wayne NY-Cayuga NY-Oswego NY-Ontario NY-
204 PM EDT Thu Aug 8 2019

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WAYNE...CAYUGA...
SOUTHWESTERN OSWEGO AND NORTHEASTERN ONTARIO COUNTIES HAS EXPIRED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been allowed to expire.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central and western New York.

LAT...LON 4354 7639 4323 7637 4323 7648 4315 7647
      4314 7649 4311 7647 4310 7650 4303 7649
      4301 7696 4288 7697 4288 7711 4332 7704
      4331 7697 4335 7681 4348 7659
TIME...MOT...LOC 1804Z 257DEG 28KT 4334 7656 4298 7664 

$$

TMA

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 10:41 PM EDT	Beach Hazards Statement	BUF	Chautauqua, Erie	22 hr
Aug 7, 10:42 PM EDT	Small Craft Advisory	BUF		71 hr
Aug 8, 4:33 AM EDT	Lakeshore Flood Warning	BUF	Cayuga, Jefferson, Oswego, Wayne	65 hr
Aug 8, 10:16 AM EDT	Special Marine Warning	BUF		59 min
Aug 8, 10:27 AM EDT	Special Marine Warning	BUF		63 min
Aug 8, 10:35 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	40 min
Aug 8, 10:39 AM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	66 min
Aug 8, 10:48 AM EDT	Severe Thunderstorm Warning	BUF	Erie	42 min
Aug 8, 10:58 AM EDT	Special Marine Warning	BUF		62 min
Aug 8, 11:15 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Orleans	60 min
Aug 8, 11:39 AM EDT	Special Weather Statement	BUF	Cattaraugus	36 min
Aug 8, 11:45 AM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Erie, Wyoming	36 min
Aug 8, 11:50 AM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Orleans	55 min
Aug 8, 11:58 AM EDT	Special Marine Warning	BUF		62 min
Aug 8, 12:20 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario, Wayne	55 min
Aug 8, 12:24 PM EDT	Special Weather Statement	BUF	Allegany, Livingston	36 min
Aug 8, 12:30 PM EDT	Special Marine Warning	BUF		60 min
Aug 8, 12:38 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	67 min
Aug 8, 12:53 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	54 min
Aug 8, 1:04 PM EDT	Special Marine Warning	BUF		86 min
Aug 8, 1:50 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Jefferson, Oswego	70 min
Aug 8, 3:01 PM EDT	Special Weather Statement	BUF	Genesee	44 min
Aug 8, 4:23 PM EDT	Special Weather Statement	BUF	Erie	37 min
Aug 8, 4:50 PM EDT	Special Weather Statement	BUF	Wayne	40 min
Aug 8, 5:12 PM EDT	Special Weather Statement	BUF	Erie	48 min

Nearby

Severe Thunderstorm Warnings in New York, 2019 Every severe thunderstorm warning in 2019

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.