Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 249, NWS Binghamton, NY

August 29, 2021Cayuga County, Seneca County, New York

NWS Binghamton, NY issued this severe thunderstorm warning at Aug 29, 2021, 3:37 PM EDT for Cayuga County, Seneca County, New York. It was in force for 53 min. 4 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 29, 2021, 3:37 PM EDT (19:37 UTC)
Expired: Aug 29, 2021, 4:30 PM EDT
In force: 53 min
Issued by: NWS Binghamton, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cayuga County, NY, Seneca County, NY

The radar

The Binghamton radar (KBGM), 106 km from the middle of the area, began a volume at 19:40 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 29, 3:40 PM EDT	TSTM WND DMG	1 N Border City, NY	TREE DOWN BLOCKING SERVEN RD, TIME ESTIMATED FROM RADAR.
Aug 29, 3:44 PM EDT	TSTM WND DMG	2 Se Packwood Corners, NY	TREES DOWN ON MARSHALL RD, TIME ESTIMATED FROM RADAR.
Aug 29, 3:49 PM EDT	TSTM WND DMG	1 Sse Tyre, NY	POLES HANGING OUT OVER THE ROAD, WIRES DOWN AT LAY AND GRAVEL RD. TIME ESTIMATED FROM RADAR.
Aug 29, 3:59 PM EDT	TSTM WND DMG	2 E Rose Hill, NY	POLE DOWN ACROSS YELLOW TAVERN RD. TIME ESTIMATED FROM RADAR.

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, 7.6 hours before the alert went out and 150 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: 580 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 993 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

616 
WUUS51 KBGM 291937
SVRBGM
NYC011-099-292030-
/O.NEW.KBGM.SV.W.0249.210829T1937Z-210829T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Binghamton NY
337 PM EDT Sun Aug 29 2021

The National Weather Service in Binghamton has issued a

* Severe Thunderstorm Warning for...
  Northwestern Seneca County in central New York...
  Northwestern Cayuga County in central New York...

* Until 430 PM EDT.

* At 336 PM EDT, severe thunderstorms were located along a line
  extending from near Lyons to near Geneva, moving east at 25 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Auburn, Seneca Falls, Waterloo, Fayette, Montezuma, Union Springs,
  Tyre, Cayuga, Canoga and Lehigh Vallley Junction.

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 these storms. 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.

If on or near the northern end of Seneca Lake, get away from the 
water and move indoors or inside a vehicle. Remember, lightning can 
strike out to 15 miles from the parent thunderstorm. If you can hear 
thunder, you are close enough to be struck by lightning. Move to 
safe shelter now!  Do not be caught on the water in a thunderstorm.

Heavy rainfall is occurring with these storms, and may lead to flash
flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4287 7696 4301 7696 4302 7678 4302 7656
      4283 7665 4279 7697 4287 7698
TIME...MOT...LOC 1936Z 250DEG 21KT 4305 7695 4286 7704 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

TAC

1 follow-up statement

857 
WWUS51 KBGM 292001
SVSBGM

Severe Weather Statement
National Weather Service Binghamton NY
401 PM EDT Sun Aug 29 2021

NYC011-099-292030-
/O.CON.KBGM.SV.W.0249.000000T0000Z-210829T2030Z/
Seneca NY-Cayuga NY-
401 PM EDT Sun Aug 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR CENTRAL SENECA AND NORTHWESTERN CAYUGA COUNTIES...

At 400 PM EDT, severe thunderstorms were located along a line
extending from near Montezuma to near Waterloo, moving east at 20
mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Auburn, Seneca Falls, Fayette, Union Springs, Cayuga, Canoga,
Throopsville, Rose Hill, Cayuga Lake State Park and Fosterville.

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 these storms.
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.

If on or near the northern end of Seneca Lake, get away from the 
water and move indoors or inside a vehicle. remember, lightning can 
strike out to 15 miles from the parent thunderstorm. If you can hear 
thunder, you are close enough to be struck by lightning. Move to 
safe shelter now!  Do not be caught on the water in a thunderstorm.

&&

LAT...LON 4281 7697 4302 7666 4302 7656 4283 7665
      4279 7697
TIME...MOT...LOC 2000Z 264DEG 17KT 4299 7666 4284 7689 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

TAC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 29, 2:17 PM EDT	Flash Flood Warning	BGM	Seneca	3 hr
Aug 29, 3:27 PM EDT	Special Weather Statement	BGM	Seneca	33 min
Aug 29, 4:19 PM EDT	Severe Thunderstorm Warning	BGM	Cayuga, Cortland, Madison, Onondaga	28 min
Aug 29, 5:36 PM EDT	Special Weather Statement	BGM	Yates	39 min
Aug 29, 5:51 PM EDT	Areal Flood Advisory	BGM	Schuyler, Steuben, Yates	114 min

Nearby

Severe Thunderstorm Warnings in New York, 2021 Every severe thunderstorm warning in 2021

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.