Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 122, NWS Buffalo, NY

August 22, 20175 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 22, 2017, 7:13 PM EDT for 5 counties in New York. It was in force for 22 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, 7:13 PM EDT (23:13 UTC)
Expired: Aug 22, 2017, 7:35 PM EDT
In force: 22 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Erie County, NY, Genesee County, NY, Niagara County, NY, Orleans County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 49 km from the middle of the area, began a volume at 23:14 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 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, 12:23 PM EDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 11.2 hours before the alert went out and 46 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: 435 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 1187 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 140 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted.

933 
WUUS51 KBUF 222313
SVRBUF
NYC029-037-063-073-121-230000-
/O.NEW.KBUF.SV.W.0122.170822T2313Z-170823T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
713 PM EDT TUE AUG 22 2017

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Northern Wyoming County in western New York...
  Northeastern Erie County in western New York...
  Southeastern Niagara County in western New York...
  Southern Orleans County in western New York...
  Genesee County in western New York...

* until 800 PM EDT.

* At 713 PM EDT, a severe thunderstorm was located over Clarence,
  moving east at 40 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect wind damage to trees and power lines. 

* Locations impacted include...
  Cheektowaga, West Seneca, Clarence, Batavia, Depew, Lancaster, East
  Aurora and Darien Lakes State Park.

This includes Interstate 90 between exits 49 and 47.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4281 7874 4314 7868 4318 7800 4313 7799
      4313 7792 4304 7795 4304 7793 4291 7794
      4290 7796 4279 7795 4266 7797 4263 7798
TIME...MOT...LOC 2313Z 267DEG 36KT 4297 7863 

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

Church

1 follow-up statement

697 
WWUS51 KBUF 222335
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
735 PM EDT TUE AUG 22 2017

NYC029-037-063-073-121-222345-
/O.CAN.KBUF.SV.W.0122.000000T0000Z-170823T0000Z/
Wyoming NY-Erie NY-Niagara NY-Orleans NY-Genesee NY-
735 PM EDT TUE AUG 22 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WYOMING...
NORTHEASTERN ERIE...SOUTHEASTERN NIAGARA...SOUTHERN ORLEANS AND
GENESEE COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

LAT...LON 4281 7874 4314 7868 4318 7800 4313 7799
      4313 7792 4304 7795 4304 7793 4291 7794
      4290 7796 4279 7795 4266 7797 4263 7798
TIME...MOT...LOC 2334Z 267DEG 36KT 4298 7833 

$$

Church

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 21, 10:39 PM EDT	Beach Hazards Statement	BUF	Chautauqua, Erie, Jefferson	23 hr
Aug 22, 4:04 AM EDT	Wind Advisory	BUF	Erie, Genesee, Niagara, Orleans	13 hr
Aug 22, 4:09 AM EDT	Lakeshore Flood Warning	BUF	Cayuga, Jefferson, Oswego, Wayne	40 hr
Aug 22, 7:16 AM EDT	Special Weather Statement	BUF	Lewis	59 min
Aug 22, 9:51 AM EDT	Special Marine Warning	BUF		54 min
Aug 22, 12:05 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	55 min
Aug 22, 12:34 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario, Orleans, Wayne and 1 more	56 min
Aug 22, 12:34 PM EDT	Tornado Warning	BUF	Cattaraugus, Chautauqua	26 min
Aug 22, 12:42 PM EDT	Special Marine Warning	BUF		48 min
Aug 22, 12:44 PM EDT	Special Marine Warning	BUF		61 min
Aug 22, 12:55 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Erie, Genesee, Livingston, Wyoming	65 min
Aug 22, 1:13 PM EDT	Special Marine Warning	BUF		62 min
Aug 22, 1:23 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Monroe, Ontario, Oswego, Wayne	67 min
Aug 22, 1:27 PM EDT	Special Marine Warning	BUF		63 min
Aug 22, 1:42 PM EDT	Special Marine Warning	BUF		63 min
Aug 22, 1:53 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	67 min
Aug 22, 1:56 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Ontario, Wyoming	49 min
Aug 22, 2:05 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Lewis, Oswego	55 min
Aug 22, 2:12 PM EDT	Tornado Warning	BUF	Allegany, Livingston	33 min
Aug 22, 2:47 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	58 min
Aug 22, 2:48 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 1 more	57 min
Aug 22, 3:11 PM EDT	Tornado Warning	BUF	Lewis	34 min
Aug 22, 3:15 PM EDT	Tornado Warning	BUF	Lewis	30 min
Aug 22, 3:20 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Livingston, Wyoming	55 min
Aug 22, 3:45 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario, Wyoming	45 min
Aug 22, 4:28 PM EDT	Special Marine Warning	BUF		92 min
Aug 22, 4:29 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	19 min
Aug 22, 4:40 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	35 min
Aug 22, 4:53 PM EDT	Special Weather Statement	BUF	Jefferson	67 min
Aug 22, 5:10 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	35 min
Aug 22, 5:28 PM EDT	Special Marine Warning	BUF		47 min
Aug 22, 5:29 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	61 min
Aug 22, 6:28 PM EDT	Special Marine Warning	BUF		32 min
Aug 22, 6:28 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Niagara	47 min
Aug 22, 7:00 PM EDT	Special Marine Warning	BUF		30 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; radar from the NEXRAD Level II archive.