Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 44, NWS Buffalo, NY

June 15, 2017Monroe County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 15, 2017, 5:46 PM EDT for Monroe County, New York. It was in force for 29 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
Jun 15, 2017, 5:46 PM EDT (21:46 UTC)
Expired
Jun 15, 2017, 6:15 PM EDT
In force
29 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Monroe County, NY

The radar

The Buffalo radar (KBUF), 86 km from the middle of the area, began a volume at 21:46 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, 9.8 hours before the alert went out and 84 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2017-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2017-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1392 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

971 
WUUS51 KBUF 152146
SVRBUF
NYC055-152215-
/O.NEW.KBUF.SV.W.0044.170615T2146Z-170615T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
546 PM EDT THU JUN 15 2017

The National Weather Service in Buffalo has issued a

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

* Until 615 PM EDT.

* At 546 PM EDT, a severe thunderstorm was located near Hilton,
  moving northeast at 25 mph.

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

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Brockport, Hilton, Hamlin Beach State Park, Spencerport and
  Braddock Bay.

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 4339 7775 4334 7765 4316 7779 4322 7799
      4341 7793
TIME...MOT...LOC 2146Z 203DEG 24KT 4327 7787 

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

Mitchell
2 follow-up statements
995 
WWUS51 KBUF 152201
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
601 PM EDT THU JUN 15 2017

NYC055-152215-
/O.CON.KBUF.SV.W.0044.000000T0000Z-170615T2215Z/
Monroe NY-
601 PM EDT THU JUN 15 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR NORTHWESTERN MONROE COUNTY...

At 601 PM EDT, a severe thunderstorm was located near Hilton, moving
northeast at 30 mph.

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

SOURCE...Radar indicated. 

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

Locations impacted include...
Hilton and Hamlin Beach State Park. 

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 4339 7775 4334 7766 4334 7767 4323 7781
      4322 7799 4341 7793
TIME...MOT...LOC 2201Z 203DEG 24KT 4336 7782 

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

Thomas
246 
WWUS51 KBUF 152214
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
614 PM EDT THU JUN 15 2017

NYC055-152224-
/O.EXP.KBUF.SV.W.0044.000000T0000Z-170615T2215Z/
Monroe NY-
614 PM EDT THU JUN 15 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MONROE COUNTY
WILL EXPIRE AT 615 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

LAT...LON 4339 7775 4334 7766 4334 7767 4323 7781
      4322 7799 4341 7793
TIME...MOT...LOC 2214Z 206DEG 23KT 4341 7775 

$$

Thomas

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 9:16 AM EDTSpecial Weather StatementBUFGenesee59 min
Jun 15, 10:17 AM EDTSpecial Weather StatementBUFLivingston, Monroe58 min
Jun 15, 11:24 AM EDTSpecial Weather StatementBUFOntario, Wayne66 min
Jun 15, 11:41 AM EDTFlash Flood WatchBUFAllegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 4 more11 hr
Jun 15, 3:46 PM EDTSpecial Weather StatementBUFAllegany, Cattaraugus, Livingston, Ontario, Wyoming3 hr
Jun 15, 4:16 PM EDTSevere Thunderstorm WarningBUFLivingston, Ontario44 min
Jun 15, 4:54 PM EDTSevere Thunderstorm WarningBUFOntario66 min
Jun 15, 4:54 PM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe51 min
Jun 15, 5:19 PM EDTFlash Flood WarningBUFAllegany, Cattaraugus, Livingston, Ontario, Wyoming7 hr
Jun 15, 5:26 PM EDTSevere Thunderstorm WarningBUFLivingston, Ontario64 min
Jun 15, 5:26 PM EDTSevere Thunderstorm WarningBUFGenesee, Monroe, Orleans49 min
Jun 15, 5:53 PM EDTSpecial Marine WarningBUF52 min
Jun 15, 6:31 PM EDTSpecial Weather StatementBUFAllegany29 min
Jun 15, 6:42 PM EDTSpecial Weather StatementBUFMonroe63 min
Jun 15, 7:05 PM EDTFlash Flood WarningBUFLivingston, Monroe, Ontario3 hr

Nearby

Severe Thunderstorm Warnings in New York, 2017Every 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.