Alert archive / New York / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 45, NWS Buffalo, NY

August 8, 2018Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 8, 2018, 8:09 AM EDT for Erie County, New York. It was in force for 66 min. 1 report 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, 2018, 8:09 AM EDT (12:09 UTC)
Expired: Aug 8, 2018, 9:15 AM EDT
In force: 66 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Erie County, NY

The radar

The Buffalo radar (KBUF), 25 km from the middle of the area, began a volume at 12:09 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 8, 9:15 AM EDT	TSTM WND DMG	Hamburg, NY	SEVERAL LARGE TREE LIMBS DOWN, MINOR PROPERTY DAMAGE.

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, 0.2 hours before the alert went out and 26 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: 204 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 840 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

529 
WUUS51 KBUF 081209
SVRBUF
NYC029-081315-
/O.NEW.KBUF.SV.W.0045.180808T1209Z-180808T1315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
809 AM EDT WED AUG 8 2018

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Central Erie County in western New York...

* Until 915 AM EDT..

* At 808 AM EDT, a severe thunderstorm was located 13 miles northwest
  of Angola On The Lake, or 19 miles north of Dunkirk, moving
  northeast at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Buffalo, Cheektowaga, West Seneca, North Tonawanda, Clarence,
  Lackawanna, Kenmore and Depew.

# 

This includes Interstate 90 between exits 57A and 49.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4264 7916 4267 7912 4272 7909 4276 7898
      4280 7892 4284 7893 4292 7890 4296 7893
      4297 7898 4298 7897 4305 7876 4304 7855
      4278 7851 4264 7868 4256 7907 4257 7916
      4259 7919
TIME...MOT...LOC 1208Z 241DEG 28KT 4277 7929 

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

Apffel

3 follow-up statements

725 
WWUS51 KBUF 081226
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
826 AM EDT WED AUG 8 2018

NYC029-081315-
/O.CON.KBUF.SV.W.0045.000000T0000Z-180808T1315Z/
Erie NY-
826 AM EDT WED AUG 8 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 AM EDT
FOR CENTRAL ERIE COUNTY...

At 825 AM EDT, a severe thunderstorm was located 9 miles north of
Angola On The Lake, or 13 miles west of Lackawanna, moving northeast
at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Buffalo, Cheektowaga, West Seneca, North Tonawanda, Clarence,
Lackawanna, Kenmore and Depew.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This thunderstorm is capable of producing all types of severe 
weather including destructive straight line winds and tornadoes. 
Move quickly to a safe shelter, such as an interior room, a bathroom 
or closet or basement.

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

&&

LAT...LON 4259 7919 4264 7916 4267 7912 4272 7909
      4276 7898 4280 7892 4284 7893 4292 7890
      4296 7893 4297 7898 4298 7897 4305 7876
      4304 7855 4278 7851 4264 7868 4256 7907
      4257 7916
TIME...MOT...LOC 1225Z 245DEG 32KT 4280 7910 

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

Apffel

167 
WWUS51 KBUF 081243
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
843 AM EDT WED AUG 8 2018

NYC029-081315-
/O.CON.KBUF.SV.W.0045.000000T0000Z-180808T1315Z/
Erie NY-
843 AM EDT WED AUG 8 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 AM EDT
FOR CENTRAL ERIE COUNTY...

At 842 AM EDT, a severe thunderstorm was located near Woodlawn Beach
State Park, or near Lackawanna, moving east at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Angola, Hamburg, Buffalo, Cheektowaga, West Seneca, Clarence, 
Lackawanna, Kenmore, and Depew.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This thunderstorm is capable of producing all types of severe 
weather including destructive straight line winds and tornadoes. 
Move quickly to a safe shelter, such as an interior room, a bathroom 
or closet or basement.

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

&&

LAT...LON 4259 7919 4264 7916 4267 7912 4272 7909
      4276 7898 4280 7892 4284 7893 4292 7890
      4296 7893 4298 7897 4304 7877 4303 7855
      4278 7851 4264 7868 4256 7907 4257 7916
TIME...MOT...LOC 1242Z 252DEG 26KT 4279 7895 

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

Apffel

786 
WWUS51 KBUF 081312
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
912 AM EDT WED AUG 8 2018

NYC029-081320-
/O.EXP.KBUF.SV.W.0045.000000T0000Z-180808T1315Z/
Erie NY-
912 AM EDT WED AUG 8 2018

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ERIE COUNTY WILL
EXPIRE AT 915 AM EDT...
        
This warning was replaced by another severe thunderstorm warning.

LAT...LON 4259 7919 4264 7916 4267 7912 4272 7909
      4276 7898 4280 7892 4284 7893 4292 7890
      4296 7893 4298 7897 4304 7877 4303 7855
      4278 7851 4264 7868 4256 7907 4257 7916
TIME...MOT...LOC 1310Z 241DEG 28KT 4290 7869 

$$

Apffel

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 4:36 AM EDT	Special Weather Statement	BUF	Cattaraugus	39 min
Aug 8, 7:03 AM EDT	Special Marine Warning	BUF		117 min
Aug 8, 9:07 AM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Wyoming	53 min
Aug 8, 10:10 AM EDT	Special Weather Statement	BUF	Genesee	50 min
Aug 8, 11:03 AM EDT	Special Weather Statement	BUF	Ontario	57 min
Aug 8, 11:54 AM EDT	Flash Flood Warning	BUF	Livingston, Monroe, Ontario	3 hr
Aug 8, 7:25 PM EDT	Small Craft Advisory	BUF		6 hr

Nearby

Severe Thunderstorm Warnings in New York, 2018 Every severe thunderstorm warning in 2018

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.