Alert archive / New York / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 95, NWS Buffalo, NY

August 18, 2019Cayuga County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 18, 2019, 3:14 PM EDT for Cayuga County, Wayne County, New York. It was in force for 46 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 18, 2019, 3:14 PM EDT (19:14 UTC)
Expired: Aug 18, 2019, 4:00 PM EDT
In force: 46 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Cayuga County, NY, Wayne County, NY

The radar

The Ft Drum radar (KTYX), 102 km from the middle of the area, began a volume at 19:14 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.2 hours before the alert went out and 173 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1370 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

524 
WUUS51 KBUF 181914
SVRBUF
NYC011-117-182000-
/O.NEW.KBUF.SV.W.0095.190818T1914Z-190818T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
314 PM EDT Sun Aug 18 2019

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Southeastern Wayne County in western New York...
  Cayuga County in central New York...

* Until 400 PM EDT..

* At 314 PM EDT, a severe thunderstorm was located over Clyde, or 11
  miles north of Seneca Falls, moving east at 30 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Clyde, Weedsport, Cato, Ira, Conquest, Savannah, Port Byron,
  Meridian and South Butler.

 This includes Interstate 90 near exit 40.
 
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.

&&

LAT...LON 4310 7650 4303 7650 4302 7693 4310 7694
      4325 7648 4315 7647 4314 7649 4311 7647
TIME...MOT...LOC 1914Z 248DEG 24KT 4307 7682 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

Hitchcock

2 follow-up statements

619 
WWUS51 KBUF 181940
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
340 PM EDT Sun Aug 18 2019

NYC011-117-182000-
/O.CON.KBUF.SV.W.0095.000000T0000Z-190818T2000Z/
Wayne NY-Cayuga NY-
340 PM EDT Sun Aug 18 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHEASTERN WAYNE AND CAYUGA COUNTIES...

At 340 PM EDT, a severe thunderstorm was located near Weedsport, or
11 miles north of Auburn, moving east at 25 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Clyde, Weedsport, Cato, Ira, Conquest, Savannah, Port Byron, Meridian
and South Butler.

 This includes Interstate 90 near exit 40.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

&&

LAT...LON 4310 7650 4303 7650 4302 7688 4314 7683
      4325 7648 4315 7647 4314 7649 4311 7647
TIME...MOT...LOC 1940Z 252DEG 21KT 4309 7665 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

Hitchcock

649 
WWUS51 KBUF 181953
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
353 PM EDT Sun Aug 18 2019

NYC011-117-182003-
/O.EXP.KBUF.SV.W.0095.000000T0000Z-190818T2000Z/
Wayne NY-Cayuga NY-
353 PM EDT Sun Aug 18 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WAYNE AND CAYUGA
COUNTIES WILL EXPIRE AT 400 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

LAT...LON 4310 7650 4303 7650 4302 7688 4314 7683
      4325 7648 4315 7647 4314 7649 4311 7647
TIME...MOT...LOC 1953Z 248DEG 24KT 4312 7655 

$$

JJR

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 18, 5:49 AM EDT	Special Marine Warning	BUF		86 min
Aug 18, 6:13 AM EDT	Special Weather Statement	BUF	Erie	92 min
Aug 18, 7:15 AM EDT	Special Weather Statement	BUF	Genesee	30 min
Aug 18, 7:35 AM EDT	Special Weather Statement	BUF	Livingston, Wyoming	40 min
Aug 18, 8:04 AM EDT	Special Marine Warning	BUF		56 min
Aug 18, 8:04 AM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	41 min
Aug 18, 8:46 AM EDT	Special Weather Statement	BUF	Chautauqua	44 min
Aug 18, 3:02 PM EDT	Special Weather Statement	BUF	Cayuga	43 min
Aug 18, 3:16 PM EDT	Special Weather Statement	BUF	Livingston, Ontario, Wayne, Wyoming	44 min
Aug 18, 3:36 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	43 min
Aug 18, 4:16 PM EDT	Flash Flood Warning	BUF	Ontario	3 hr
Aug 18, 4:43 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	62 min
Aug 18, 5:54 PM EDT	Special Weather Statement	BUF	Lewis	51 min
Aug 18, 6:57 PM EDT	Special Weather Statement	BUF	Livingston	48 min
Aug 18, 7:03 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Ontario	42 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.