Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 270, NWS Binghamton, NY

October 15, 2021Cayuga County, Cortland County, Onondaga County, New York

NWS Binghamton, NY issued this severe thunderstorm warning at Oct 15, 2021, 4:27 PM EDT for Cayuga County, Cortland County, Onondaga County, New York. It was in force for 23 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
Oct 15, 2021, 4:27 PM EDT (20:27 UTC)
Expired
Oct 15, 2021, 4:50 PM EDT
In force
23 min
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

Counties Cayuga County, NY, Cortland County, NY, Onondaga County, NY

The radar

The Binghamton radar (KBGM), 72 km from the middle of the area, began a volume at 20:30 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, 8.5 hours before the alert went out and 193 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 2021-10-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLEL10008507005003002001001 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 2021-10-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 square meters per square second.19395878Sfc1 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
2 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
554 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
-28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

041 
WUUS51 KBGM 152027
SVRBGM
NYC011-023-067-152130-
/O.NEW.KBGM.SV.W.0270.211015T2027Z-211015T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Binghamton NY
427 PM EDT Fri Oct 15 2021

The National Weather Service in Binghamton has issued a

* Severe Thunderstorm Warning for...
  Southeastern Cayuga County in central New York...
  Northern Cortland County in central New York...
  Southern Onondaga County in central New York...

* Until 530 PM EDT.

* At 427 PM EDT, a severe thunderstorm was located over Niles, or 11
  miles southeast of Auburn, moving east at 25 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Pompey, Manlius, Owasco, Otisco, Preble, Moravia, Niles, Scott,
  Truxton and Cuyler.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4272 7656 4281 7652 4291 7655 4302 7595
      4260 7590
TIME...MOT...LOC 2027Z 261DEG 20KT 4280 7644 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

HLC
2 follow-up statements
471 
WWUS51 KBGM 152039
SVSBGM

Severe Weather Statement
National Weather Service Binghamton NY
439 PM EDT Fri Oct 15 2021

NYC011-023-067-152130-
/O.CON.KBGM.SV.W.0270.000000T0000Z-211015T2130Z/
Cayuga NY-Cortland NY-Onondaga NY-
439 PM EDT Fri Oct 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR SOUTHEASTERN CAYUGA...NORTHERN CORTLAND AND SOUTHERN ONONDAGA
COUNTIES...

At 439 PM EDT, a severe thunderstorm was located over Kelloggsville,
or 14 miles southeast of Auburn, moving east at 25 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Pompey, Manlius, Otisco, Preble, Moravia, Niles, Scott, Truxton,
Cuyler and Sempronius.

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 4271 7644 4280 7642 4293 7644 4302 7595
      4260 7590
TIME...MOT...LOC 2039Z 261DEG 20KT 4281 7635 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

HLC
220 
WWUS51 KBGM 152050
SVSBGM

Severe Weather Statement
National Weather Service Binghamton NY
450 PM EDT Fri Oct 15 2021

NYC011-023-067-152059-
/O.CAN.KBGM.SV.W.0270.000000T0000Z-211015T2130Z/
Cayuga NY-Cortland NY-Onondaga NY-
450 PM EDT Fri Oct 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CAYUGA...NORTHERN
CORTLAND AND SOUTHERN ONONDAGA COUNTIES IS CANCELLED...
                
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 has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Binghamton.

LAT...LON 4271 7644 4280 7642 4293 7644 4302 7595
      4260 7590
TIME...MOT...LOC 2049Z 261DEG 20KT 4282 7627 

$$

HLC

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 15, 3:45 PM EDTSevere Thunderstorm WarningBGMCayuga, Onondaga, Seneca30 min
Oct 15, 4:03 PM EDTTornado WarningBGMCayuga, Onondaga27 min
Oct 15, 4:46 PM EDTSpecial Weather StatementBGMYates44 min
Oct 15, 5:43 PM EDTSpecial Weather StatementBGMMadison47 min

Nearby

Severe Thunderstorm Warnings in New York, 2021Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.