As I sit here and think about what to type, I have one word. Amazing. This was the first actual chase I had where I had a co-pilot. Even better, he knew about weather and what to look for! Not many chasers are lucky to have a co-pilot/navigator during chasing. Dean and Laura were alone yesterday, which was a bit worrisome since we were under an Enhanced Risk and tornado watch. I picked up my navigator just north of Butler, and we started heading south to Saxonburg, PA. They have a history of tornadoes and funnels since it’s so flat. When we pulled in, it was probably only 6-minutes we were

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As I sit here and think about what to type, I have one word. Amazing. This was the first actual chase I had where I had a co-pilot. Even better, he knew about weather and what to look for! Not many chasers are lucky to have a co-pilot/navigator during chasing. Dean and Laura were alone yesterday, which was a bit worrisome since we were under an Enhanced Risk and tornado watch. I picked up my navigator just north of Butler, and we started heading south to Saxonburg, PA. They have a history of tornadoes and funnels since it’s so flat. When we pulled in, it was probably only 6-minutes we were

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As with anything that can come with severe weather, damaging winds can cause a ton of damage. What exactly are the types of damaging winds? They are explained below. Damaging winds are often called “straight-line” winds to differentiate the damage they cause from tornado damage. Strong thunderstorm winds can come from a number of different processes. Most thunderstorm winds that cause damage at the ground are a result of outflow generated by a thunderstorm downdraft. Damaging winds are classified as those exceeding 50-60 mph. Wind speeds can reach up to 100 mph and can produce a damage path extending for hundreds of miles. Since most thunderstorms produce some straight-line winds, those who

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As with anything that can come with severe weather, damaging winds can cause a ton of damage. What exactly are the types of damaging winds? They are explained below. Damaging winds are often called “straight-line” winds to differentiate the damage they cause from tornado damage. Strong thunderstorm winds can come from a number of different processes. Most thunderstorm winds that cause damage at the ground are a result of outflow generated by a thunderstorm downdraft. Damaging winds are classified as those exceeding 50-60 mph. Wind speeds can reach up to 100 mph and can produce a damage path extending for hundreds of miles. Since most thunderstorms produce some straight-line winds, those who

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The NWS has already placed Western, PA in a Tornado Watch. An organized line of storms with embedded mesovortices and bowing segments from Lake Erie through extreme eastern OH is moving east at around 40 kt into the Pittsburgh area. A tornado watch is likely to be issued for Central, Pa within the hour. Severe storm threat with damaging wind and a few tornadoes should continue to expand eastward into western NY and central PA this afternoon. A tornado watch will likely be issued soon.

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The NWS has already placed Western, PA in a Tornado Watch. An organized line of storms with embedded mesovortices and bowing segments from Lake Erie through extreme eastern OH is moving east at around 40 kt into the Pittsburgh area. A tornado watch is likely to be issued for Central, Pa within the hour. Severe storm threat with damaging wind and a few tornadoes should continue to expand eastward into western NY and central PA this afternoon. A tornado watch will likely be issued soon.

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This is an updated outlook that has just been issued by the SPC (Storm Prediction Center) for today (May 1, 2017). Thunderstorms are expected to develop and overspread much of the lower Great Lakes region, the upper Ohio Valley and central Appalachians into the Mid Atlantic region today, accompanied by potentially damaging wind gusts and the risk for a few tornadoes. This activity seems likely to eventually consolidate and grow upscale into an organizing squall line as it crosses the Allegheny mountains and plateau, and to the lee of the Blue Ridge, by early evening. There is an increasing potential for damaging surface gusts, given the strength of the ambient wind fields,

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This is an updated outlook that has just been issued by the SPC (Storm Prediction Center) for today (May 1, 2017). Thunderstorms are expected to develop and overspread much of the lower Great Lakes region, the upper Ohio Valley and central Appalachians into the Mid Atlantic region today, accompanied by potentially damaging wind gusts and the risk for a few tornadoes. This activity seems likely to eventually consolidate and grow upscale into an organizing squall line as it crosses the Allegheny mountains and plateau, and to the lee of the Blue Ridge, by early evening. There is an increasing potential for damaging surface gusts, given the strength of the ambient wind fields,

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You hear thunder in the distance, maybe even feel a breeze and smell rain. You look out your window, and you see dark storm clouds in the distance. The news station alerts you of the possibility of storms in your area that afternoon. Severe storms can bring a multitude of sporadic conditions with it, microbursts are one of them. It all starts with a thunderstorm, but what exactly is a microburst? Microbursts AKA downbursts, are made of wind rushing down to the ground. Once the wind hits the ground, it spreads in all directions. Wind speeds in a microburst can be 60-100 mph, damaging roofs, snapping trees and knocking over power poles.

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You hear thunder in the distance, maybe even feel a breeze and smell rain. You look out your window, and you see dark storm clouds in the distance. The news station alerts you of the possibility of storms in your area that afternoon. Severe storms can bring a multitude of sporadic conditions with it, microbursts are one of them. It all starts with a thunderstorm, but what exactly is a microburst? Microbursts AKA downbursts, are made of wind rushing down to the ground. Once the wind hits the ground, it spreads in all directions. Wind speeds in a microburst can be 60-100 mph, damaging roofs, snapping trees and knocking over power poles.

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With storm season already in progress, now is the time to become aware of tornado safety and preparation. While Pennsylvania doesn’t get as many tornadoes as tornado alley does, we still have tornadoes spin up every now and again. Here is what you need to know about safety and preparation. To start, what exactly is a tornado? A tornado is a narrow, violently rotating column of air that extends from the base of a thunderstorm to the ground. Because wind is invisible, it is hard to see a tornado unless it forms a condensation funnel made up of water droplets, dust and debris. Tornadoes are the most violent of all atmospheric

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With storm season already in progress, now is the time to become aware of tornado safety and preparation. While Pennsylvania doesn’t get as many tornadoes as tornado alley does, we still have tornadoes spin up every now and again. Here is what you need to know about safety and preparation. To start, what exactly is a tornado? A tornado is a narrow, violently rotating column of air that extends from the base of a thunderstorm to the ground. Because wind is invisible, it is hard to see a tornado unless it forms a condensation funnel made up of water droplets, dust and debris. Tornadoes are the most violent of all atmospheric

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Convective Outlooks SPC issues Day 1, Day 2, and Day 3 Convective Outlooks that depict non-severe thunderstorm areas and severe thunderstorm threats across the contiguous United States, along with a text narrative. The categorical forecast specifies the level of the overall severe weather threat via numbers (e.g., 5), descriptive labeling (e.g., HIGH), and colors (e.g., magenta). The probabilistic forecast directly expresses the best estimate of a severe weather event occurring within 25 miles of a point. The text narrative begins with a listing of severe thunderstorm risk areas by state and/or geographic region. This is followed by a concise, plain-language summary of the type(s) of threat along with timing that is

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Convective Outlooks SPC issues Day 1, Day 2, and Day 3 Convective Outlooks that depict non-severe thunderstorm areas and severe thunderstorm threats across the contiguous United States, along with a text narrative. The categorical forecast specifies the level of the overall severe weather threat via numbers (e.g., 5), descriptive labeling (e.g., HIGH), and colors (e.g., magenta). The probabilistic forecast directly expresses the best estimate of a severe weather event occurring within 25 miles of a point. The text narrative begins with a listing of severe thunderstorm risk areas by state and/or geographic region. This is followed by a concise, plain-language summary of the type(s) of threat along with timing that is

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The National Weather Service: Storm Prediction Center in Norman, OK has issued their Day 2 convective weather outlook. Mid Western PA and most of Central PA will be in a SLIGHT risk for severe weather. Even though the words slight do not seem like much, SLIGHT can bring hail over 1-inch in size, winds above 65 MPH, and tornado spin up between EF0-EF2 (Possibly EF3 if conditions are right). Always be weather alert during times like this. May has brought havoc to the Pennsylvania region, for example, May 31st, 1985 was the worst tornado outbreak this state has seen. Dr. Greg Forbes with The Weather Channel, has issued TORCON indexes of

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The National Weather Service: Storm Prediction Center in Norman, OK has issued their Day 2 convective weather outlook. Mid Western PA and most of Central PA will be in a SLIGHT risk for severe weather. Even though the words slight do not seem like much, SLIGHT can bring hail over 1-inch in size, winds above 65 MPH, and tornado spin up between EF0-EF2 (Possibly EF3 if conditions are right). Always be weather alert during times like this. May has brought havoc to the Pennsylvania region, for example, May 31st, 1985 was the worst tornado outbreak this state has seen. Dr. Greg Forbes with The Weather Channel, has issued TORCON indexes of

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Pennsylvania won’t see much in the way of any severe storms (most areas may see a low severe system). Thunder and rain MAY occur in some areas, but I wouldn’t expect anything severe. The outflow boundary has stalled across parts of eastern Oklahoma and northwestern Arkansas through southern Missouri, but continues to advance eastward into the lower Ohio Valley, where mostly low severe weather probabilities are being maintained. Lingering severe weather potential is probably maximized near the intersection of the outflow and a stalled frontal zone (roughly along the I-70 corridor of Indiana), but seems likely to diminish by late evening in the presence of weak/weakening instability.

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Pennsylvania won’t see much in the way of any severe storms (most areas may see a low severe system). Thunder and rain MAY occur in some areas, but I wouldn’t expect anything severe. The outflow boundary has stalled across parts of eastern Oklahoma and northwestern Arkansas through southern Missouri, but continues to advance eastward into the lower Ohio Valley, where mostly low severe weather probabilities are being maintained. Lingering severe weather potential is probably maximized near the intersection of the outflow and a stalled frontal zone (roughly along the I-70 corridor of Indiana), but seems likely to diminish by late evening in the presence of weak/weakening instability.

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Severe thunderstorms are expected from parts of south central Texas northeastward to portions of the Ohio Valley/northern Middle Atlantic region Saturday into Saturday night. These storms will be capable of large hail, damaging winds, and a few tornadoes. THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM SOUTH TEXAS TO THE NORTHERN MIDDLE ATLANTIC… (Valid April 29-30) This system is forecast to shift into the southern High Plains region by the end of the day 1 period as strongest mid-level flow finally rotates through the base of the trough into northwest TX/western OK. Given this scenario, strongest mid-level height falls will not spread into west TX until late afternoon. As a result, large-scale

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Severe thunderstorms are expected from parts of south central Texas northeastward to portions of the Ohio Valley/northern Middle Atlantic region Saturday into Saturday night. These storms will be capable of large hail, damaging winds, and a few tornadoes. THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM SOUTH TEXAS TO THE NORTHERN MIDDLE ATLANTIC… (Valid April 29-30) This system is forecast to shift into the southern High Plains region by the end of the day 1 period as strongest mid-level flow finally rotates through the base of the trough into northwest TX/western OK. Given this scenario, strongest mid-level height falls will not spread into west TX until late afternoon. As a result, large-scale

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