Severe Storms July 25, 2016

Tornado Confirmed Near Monroeton in Bradford County Pennsylvania

• Location: Monroeton in Bradford County Pennsylvania
• Date: July 25
• Estimated Time: 258 PM EDT
• Maximum EF-Scale Rating: EF1
• Estimated Maximum Wind Speed: 100 MPH
• Maximum Path Width: 50 YARDS
• Path Length: 200 Yards
• Beginning Lat/Lon: 41.7295N / 76.4726W
• Ending lat/Lon: 41.7284N / 76.4710W
• Fatalities: 0
• Injuries: 0

The information in this statement is preliminary and subject to change pending final review of the event(s) and publication in NWS Storm Data.

Summary

The National Weather Service in Binghamton NY has confirmed a tornado near Monroeton in Bradford County Pennsylvania on July 25.

An EF-1 tornado touched down north of Franklin road northwest of Monroeton and tracked southeast for 200 yards before ending. Wind speeds of 100 mph resulted in numerous snaps of softwood trees along the path of the tornado.

For reference: the Enhanced Fujita Scale classifies tornadoes into the following categories:

• EF0: wind speeds 65 to 85 mph.
• EF1: wind speeds 86 to 110 mph.
• EF2: wind speeds 111 to 135 mph.
• EF3: wind speeds 136 to 165 mph.
• EF4: wind speeds 166 to 200 mph.
• EF5: wind speeds greater than 200 mph.

Microburst /Straight Line Wind Damage/ Confirmed Near Monroeton in Bradford County Pennsylvania

• Location: Monroeton in Bradford County Pennsylvania
• Date: July 25, 2016
• Estimated Time: 310 PM EDT
• Estimated Maximum Wind Speed: 100 MPH
• Maximum Path Width: 200 yards
• Path Length: 500 yards
• Beginning Lat/Lon: 41.6904N / 76.4108W
• Ending lat/Lon: 41.6886N / 76.4057W
• Fatalities: 0
• Injuries: 0

The information in this statement is preliminary and subject to change pending final review of the event(s) and publication in NWS Storm Data.

Summary

The National Weather Service in Binghamton NY has confirmed a Microburst /Straight Line Wind Damage/ near Monroeton in Bradford County Pennsylvania on July 25, 2016.

A National Weather Service team has completed a survey of damage from a microburst that occurred on July 25 at 310 pm in Monroeton Pennsylvania. Damaging winds occurred along Marcy Hill Road. The roof was torn off of a house and a barn was heavily damaged. Damage was strewn farther east downwind from the structures along and on either side of the road. Wind speeds were estimated at 100 mph.

Click on images for a larger view.

For reference

A microburst is a convective downdraft with an affected outflow area of less than 2 1/2 miles wide and peak winds lasting less than 5 minutes. Microbursts may induce dangerous horizontal and vertical wind shears, which can adversely affect aircraft performance and cause property damage. Straight-line winds are generally any wind that is not associated with rotation, used mainly to differentiate them from tornadic winds.

Radar Data and Loops

The image below is a four panel display showing base reflectivity at four different elevations, 0.5, 1.5, 2.4, and 3.4 degrees.

The white arrows shows a feature called three-body scatter spike (TBSS), or hail spike, and is an indication that large hail is contained in the thunderstorm. However, the TBSS signature itself is not real, i.e., it is not raining where the spike is. Instead, it is an erroneous return of weak energy back to the radar after the original beam of energy from the radar hits the large hail in the storm. reference.

This is a 0.5 degree reflectivity loop from the NWS Binghamton, NY (KBGM) radar of the storm that produced an EF1 tornado, straight line wind damage and large hail in the Monroeton, PA area on July 25, 2016.

Base Reflectivity Loop

Start Loop Stop Loop

The image below shows 0.5 degree storm relative motion display from the NWS Binghamton, NY (KBGM) radar.  The yellow circle was added to this image to show that the storm was rotation at the time of the tornado in the Monroeton, PA area.

This is a 0.5 degree storm relative motion loop from the NWS Binghamton, NY (KBGM) radar of the storm that produced an EF1 tornado, straight line wind damage and large hail in the Monroeton, PA area on July 25, 2016.

Storm Relative Motion Loop

Start Loop Stop Loop

Microburst /Straight Line Wind Damage/ Confirmed Near Hancock in Delaware County New York

• Location: Hancock in Delaware County New York
• Date: July 25 2016
• Estimated Time: 1230 pm EDT
• Estimated Maximum Wind Speed: 70 MPH
• Maximum Path Width: 500 Yards
• Path Length: 4.0 Miles
• Beginning Lat/Lon: 41.93N / 75.15W
• Ending lat/Lon: 41.90N / 75.08W
• Fatalities: 0
• Injuries: 0

Summary

The National Weather Service in Binghamton NY has confirmed a Microburst /Straight Line Wind Damage/ near Hancock in Delaware County New York on July 25 2016.

Straight-line thunderstorm winds uprooted and snapped several trees in 5 locations along a 4 mile path that was roughly 500 yards wide. The damage occurred around 1230 pm EDT on Monday July 25th, 2016.

For reference

A microburst is a convective downdraft with an affected outflow area of less than 2 1/2 miles wide and peak winds lasting less than 5 minutes. Microbursts may induce dangerous horizontal and vertical wind shears: which can adversely affect aircraft performance and cause property damage. Straight-line winds are generally any wind that is not associated with rotation used mainly to differentiate them from tornadic winds.