Alert archive / New York / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 86, NWS Buffalo, NY

August 16, 2019Monroe County, Orleans County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 16, 2019, 5:52 PM EDT for Monroe County, Orleans County, New York. It was in force for 53 min. 6 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 16, 2019, 5:52 PM EDT (21:52 UTC)
Expired: Aug 16, 2019, 6:45 PM EDT
In force: 53 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Monroe County, NY, Orleans County, NY

The radar

The Buffalo radar (KBUF), 61 km from the middle of the area, began a volume at 21:56 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
Aug 16, 5:56 PM EDT	HAIL 1	1 E Ridgeway, NY
Aug 16, 6:01 PM EDT	TSTM WND DMG	Carlton, NY	TREE DOWN IN BAKERSIDE PARK RD.
Aug 16, 6:05 PM EDT	TSTM WND DMG	Gaines, NY	POWER POLE SNAPPED AND WIRES DOWN.
Aug 16, 6:11 PM EDT	TSTM WND DMG	Lakeside, NY	POWER POLE SNAPPED AND WIRES DOWN ON SUNSET BEACH RD.
Aug 16, 6:11 PM EDT	TSTM WND DMG	Lakeside, NY	POWER POLE SNAPPED AND WIRES DOWN ON WINDING RD.
Aug 16, 6:22 PM EDT	TSTM WND DMG	Knowlesville, NY	BARN COLLAPSE, KNOWLESVILLE RD.

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

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.9 hours before the alert went out and 60 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: 121 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 722 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

315 
WUUS51 KBUF 162152
SVRBUF
NYC055-073-162245-
/O.NEW.KBUF.SV.W.0086.190816T2152Z-190816T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
552 PM EDT Fri Aug 16 2019

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Orleans County in western New York...
  Northwestern Monroe County in western New York...

* Until 645 PM EDT..

* At 552 PM EDT, a severe thunderstorm was located near Medina,
  moving northeast at 20 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Brockport, Albion, Hamlin Beach State Park, Holley, Waterport,
  Lakeside Beach State Park, Point Breeze, Kent, Ridgeway and
  Clarendon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4341 7801 4324 7790 4313 7822 4314 7823
      4325 7840 4342 7829
TIME...MOT...LOC 2152Z 214DEG 17KT 4323 7830 

HAIL...1.25IN
WIND...60MPH
 
$$

Reynolds

1 follow-up statement

278 
WWUS51 KBUF 162238
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
638 PM EDT Fri Aug 16 2019

NYC055-073-162248-
/O.EXP.KBUF.SV.W.0086.000000T0000Z-190816T2245Z/
Orleans NY-Monroe NY-
638 PM EDT Fri Aug 16 2019

...THE SEVERE THUNDERSTORM WARNING FOR ORLEANS AND NORTHWESTERN
MONROE COUNTIES WILL EXPIRE AT 645 PM EDT...
    
The severe thunderstorm which prompted the warning has weakened. 
Therefore, the warning will be allowed to expire.

LAT...LON 4341 7801 4324 7790 4313 7822 4314 7823
      4325 7840 4342 7829
TIME...MOT...LOC 2238Z 214DEG 17KT 4339 7815 

$$

JJR

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 15, 8:55 PM EDT	Special Weather Statement	BUF	Wyoming	35 min
Aug 15, 9:00 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Erie, Wyoming	25 min
Aug 15, 9:20 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	55 min
Aug 15, 10:13 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	31 min
Aug 16, 12:37 PM EDT	Special Weather Statement	BUF	Wyoming	38 min
Aug 16, 2:01 PM EDT	Special Weather Statement	BUF	Ontario	44 min
Aug 16, 2:49 PM EDT	Special Weather Statement	BUF	Ontario	26 min
Aug 16, 4:42 PM EDT	Special Weather Statement	BUF	Genesee	63 min
Aug 16, 5:03 PM EDT	Special Weather Statement	BUF	Genesee	57 min
Aug 16, 5:13 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Orleans	62 min
Aug 16, 5:15 PM EDT	Severe Thunderstorm Warning	BUF	Niagara	60 min
Aug 16, 5:37 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Wyoming	53 min
Aug 16, 5:58 PM EDT	Severe Thunderstorm Warning	BUF	Niagara, Orleans	47 min
Aug 16, 6:07 PM EDT	Special Marine Warning	BUF		53 min
Aug 16, 6:41 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	64 min
Aug 16, 7:21 PM EDT	Special Weather Statement	BUF	Wayne	54 min
Aug 16, 7:55 PM EDT	Special Weather Statement	BUF	Cayuga	35 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; radar from the NEXRAD Level II archive.