Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 82, NWS Binghamton, NY

September 6, 2018Bradford County, Pennsylvania

NWS Binghamton, NY issued this severe thunderstorm warning at Sep 6, 2018, 2:46 PM EDT for Bradford County, Pennsylvania. 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 counties it named.

The facts

Issued: Sep 6, 2018, 2:46 PM EDT (18:46 UTC)
Expired: Sep 6, 2018, 3:15 PM EDT
In force: 29 min
Issued by: NWS Binghamton, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Bradford County, PA

The radar

The Binghamton radar (KBGM), 63 km from the middle of the area, began a volume at 18:45 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

Albany, NY (KALY), launched 12:00Z, 6.8 hours before the alert went out and 243 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: 742 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 1031 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 100 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 0.7

Open this sounding in Storm Lab

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 6, 12:37 PM EDT	Special Weather Statement	BGM	Delaware	23 min
Sep 6, 1:31 PM EDT	Special Weather Statement	BGM	Lackawanna	59 min
Sep 6, 1:40 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne	22 min
Sep 6, 1:57 PM EDT	Areal Flood Advisory	BGM	Bradford	3 hr
Sep 6, 2:07 PM EDT	Special Weather Statement	BGM	Wyoming	38 min
Sep 6, 2:17 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna, Wyoming	15 min
Sep 6, 2:55 PM EDT	Areal Flood Advisory	BGM	Susquehanna, Wayne	2 hr
Sep 6, 3:03 PM EDT	Special Weather Statement	BGM	Lackawanna	27 min
Sep 6, 3:15 PM EDT	Special Weather Statement	BGM	Wayne	45 min
Sep 6, 3:43 PM EDT	Special Weather Statement	BGM	Pike	32 min
Sep 6, 4:43 PM EDT	Special Weather Statement	BGM	Pike	32 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.