The marginal and slight risk areas have been trimmed further on the east side to remove all of western NY and much of PA. Ongoing rain and cloud cover has prevented stronger heating and destabilization of the boundary layer and hence, any appreciable severe threat. Bands of showers and isolated thunderstorms are still possible throughout the evening. The risk of damaging storms is relatively low. Forecasts will be updated as they are submitted by the NWS. Advertisements

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The marginal and slight risk areas have been trimmed further on the east side to remove all of western NY and much of PA. Ongoing rain and cloud cover has prevented stronger heating and destabilization of the boundary layer and hence, any appreciable severe threat. Bands of showers and isolated thunderstorms are still possible throughout the evening. The risk of damaging storms is relatively low. Forecasts will be updated as they are submitted by the NWS. Advertisements

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The Storm Prediction Center has upgraded the marginal risk for today, to a slight risk. This upgrade means that damaging storms are likely. Areas that were placed in a general thunderstorm risk, have now been upgraded to a marginal risk. A small portion of the state remains in a general risk as of right now. In concert with these developments, the surface frontal system accompanying broader mid-level troughing over the Great Lakes area will continue to fracture, with diffuse frontal bands becoming focused west-east across the Great Lakes and Ohio Valley region. Relevant for severe convective concerns, a corridor of relatively rich moisture will extend eastward from the middle Mississippi Valley

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The Storm Prediction Center has upgraded the marginal risk for today, to a slight risk. This upgrade means that damaging storms are likely. Areas that were placed in a general thunderstorm risk, have now been upgraded to a marginal risk. A small portion of the state remains in a general risk as of right now. In concert with these developments, the surface frontal system accompanying broader mid-level troughing over the Great Lakes area will continue to fracture, with diffuse frontal bands becoming focused west-east across the Great Lakes and Ohio Valley region. Relevant for severe convective concerns, a corridor of relatively rich moisture will extend eastward from the middle Mississippi Valley

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Storms to linger through Monday, June 5, 2017. Forecast models show organized rotating updrafts but storm type may be mixed mode with clusters/line segments along with a few supercells. This will introduce 5% severe probability for convection along the front, but 15% severe may be needed in later outlooks if adequate buoyancy is present. Hail and wind are the primary risks with this activity. Storms will make their way into the state Sunday evening, and will stick around for the majority of Monday. Sunday’s forecast remains without change, as Monday’s outlook places the majority of the state in a marginal risk. As always, stay weather ready in case of any severe weather.

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Storms to linger through Monday, June 5, 2017. Forecast models show organized rotating updrafts but storm type may be mixed mode with clusters/line segments along with a few supercells. This will introduce 5% severe probability for convection along the front, but 15% severe may be needed in later outlooks if adequate buoyancy is present. Hail and wind are the primary risks with this activity. Storms will make their way into the state Sunday evening, and will stick around for the majority of Monday. Sunday’s forecast remains without change, as Monday’s outlook places the majority of the state in a marginal risk. As always, stay weather ready in case of any severe weather.

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A slight risk has been issued for portions of Erie and surrounding areas on June 4, 2017. This system should reach the lower great lakes by evening. Damaging winds and hail are the primary threats with convection that evolves along the cold front. A marginal risk has been issued for a small portion of the state, while the rest has been placed in a general thunderstorm risk. As with a slight risk, severe storms are likely in the marginal areas, but may not be as severe as those areas that have been placed in the slight risk areas. Stay weather ready and up to date in case any warnings or watches

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A slight risk has been issued for portions of Erie and surrounding areas on June 4, 2017. This system should reach the lower great lakes by evening. Damaging winds and hail are the primary threats with convection that evolves along the cold front. A marginal risk has been issued for a small portion of the state, while the rest has been placed in a general thunderstorm risk. As with a slight risk, severe storms are likely in the marginal areas, but may not be as severe as those areas that have been placed in the slight risk areas. Stay weather ready and up to date in case any warnings or watches

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Scientists using data from NASA’s Lunar Reconnaissance Orbiter, or LRO, have identified bright areas in craters near the moon’s south pole that are cold enough to have frost present on the surface. The icy deposits appear to be patchy and thin, and it’s possible that they are mixed in with the surface layer of soil, dust and small rocks called the regolith. The researchers say they are not seeing expanses of ice similar to a frozen pond or skating rink. Instead, they are seeing signs of surface frost. The frost was found in cold traps close to the moon’s south pole. Cold traps are permanently dark areas — located either on the floor

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Scientists using data from NASA’s Lunar Reconnaissance Orbiter, or LRO, have identified bright areas in craters near the moon’s south pole that are cold enough to have frost present on the surface. The icy deposits appear to be patchy and thin, and it’s possible that they are mixed in with the surface layer of soil, dust and small rocks called the regolith. The researchers say they are not seeing expanses of ice similar to a frozen pond or skating rink. Instead, they are seeing signs of surface frost. The frost was found in cold traps close to the moon’s south pole. Cold traps are permanently dark areas — located either on the floor

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Motivated by adventure, science, and awe at the power of nature, stormchasers are risking it all to get closer to tornadoes than ever before. The tornado that touched down in an open field at 6:03 P.M. on Friday, May 31 took the name of the town El Reno, but it was not a single tornado in the traditional sense, nor was it confined to one municipality. Part of a larger system that dropped eight tornadoes across Oklahoma’s midsection, it traveled 16.2 miles, enveloping lines of cars caught at a standstill in rush-hour traffic on Interstate 40 before dissipating at 6:43. Panicked motorists began crossing the median and driving up embankments, unsure

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Motivated by adventure, science, and awe at the power of nature, stormchasers are risking it all to get closer to tornadoes than ever before. The tornado that touched down in an open field at 6:03 P.M. on Friday, May 31 took the name of the town El Reno, but it was not a single tornado in the traditional sense, nor was it confined to one municipality. Part of a larger system that dropped eight tornadoes across Oklahoma’s midsection, it traveled 16.2 miles, enveloping lines of cars caught at a standstill in rush-hour traffic on Interstate 40 before dissipating at 6:43. Panicked motorists began crossing the median and driving up embankments, unsure

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Locally strong thunderstorms will once again take aim at the northeastern United States later today. The same storm responsible for Tuesday’s thunderstorms will bring a renewed threat of locally violent thunderstorms this afternoon and early evening. While the above areas are at greatest risk, it is not out of the question for an isolated strong thunderstorm to rattle other parts of the Northeast and mid-Atlantic into the evening. More of the thunderstorms will disrupt outdoor plans and create slower travel. Remember that as soon as thunder is heard, the risk of being struck by lightning is present. The risk of strong thunderstorms will finally wane on Thursday as drier and less

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Locally strong thunderstorms will once again take aim at the northeastern United States later today. The same storm responsible for Tuesday’s thunderstorms will bring a renewed threat of locally violent thunderstorms this afternoon and early evening. While the above areas are at greatest risk, it is not out of the question for an isolated strong thunderstorm to rattle other parts of the Northeast and mid-Atlantic into the evening. More of the thunderstorms will disrupt outdoor plans and create slower travel. Remember that as soon as thunder is heard, the risk of being struck by lightning is present. The risk of strong thunderstorms will finally wane on Thursday as drier and less

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On the evening of May 31st, 1985, a devastating and deadly tornado outbreak struck the Northeastern United States and Canada. 43 tornadoes and numerous damaging thunderstorms tore across Ohio, Pennsylvania, New York, and Ontario.  This event was the deadliest tornado outbreak of the 1980’s; killing 89 people in total, injuring more than 1,000 others, and racking up more than $600 million in property damage. In fact, since May 31, 1985, only two tornado days have been deadlier in the entire United States. The thunderstorms were supported by a cold front moving east across the northeastern U.S. ahead of a low pressure system moving northeastward through the Great Lakes region.  Unseasonably warm

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On the evening of May 31st, 1985, a devastating and deadly tornado outbreak struck the Northeastern United States and Canada. 43 tornadoes and numerous damaging thunderstorms tore across Ohio, Pennsylvania, New York, and Ontario.  This event was the deadliest tornado outbreak of the 1980’s; killing 89 people in total, injuring more than 1,000 others, and racking up more than $600 million in property damage. In fact, since May 31, 1985, only two tornado days have been deadlier in the entire United States. The thunderstorms were supported by a cold front moving east across the northeastern U.S. ahead of a low pressure system moving northeastward through the Great Lakes region.  Unseasonably warm

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Scattered severe thunderstorms capable of damaging winds, large hail & perhaps a tornado will be possible this afternoon. Greatest risk area includes locations between US-219 & I-81. Be Weather-Ready. Plan ahead if you have an outdoor event. Know how you will receive a warning if one is issued. Central Pa has been placed in a slight risk, while other parts of the state have been placed in a marginal and a general thunderstorm risk. If you have any outdoor activities planned, be sure to keep up to date with any watches, earnings, or advisories that may be issued.

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Scattered severe thunderstorms capable of damaging winds, large hail & perhaps a tornado will be possible this afternoon. Greatest risk area includes locations between US-219 & I-81. Be Weather-Ready. Plan ahead if you have an outdoor event. Know how you will receive a warning if one is issued. Central Pa has been placed in a slight risk, while other parts of the state have been placed in a marginal and a general thunderstorm risk. If you have any outdoor activities planned, be sure to keep up to date with any watches, earnings, or advisories that may be issued.

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Storms are expected to form by around noon across western PA and NY along the front, and will develop and move relatively slowly northeastward during the afternoon, possibly reaching Vermont by evening. The primary storm mode is expected to be cellular, but small lines may eventually form with outflow mergers. Hail is expected to be a main threat, with strong wind gusts eventually as well. Long hodographs along with weak but veering winds with height in the low levels suggest a few supercells are possible. A Slight risk cannot totally be ruled out in later outlooks, although marginal moisture and instability along with the overall weak surface pattern look to temper

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Storms are expected to form by around noon across western PA and NY along the front, and will develop and move relatively slowly northeastward during the afternoon, possibly reaching Vermont by evening. The primary storm mode is expected to be cellular, but small lines may eventually form with outflow mergers. Hail is expected to be a main threat, with strong wind gusts eventually as well. Long hodographs along with weak but veering winds with height in the low levels suggest a few supercells are possible. A Slight risk cannot totally be ruled out in later outlooks, although marginal moisture and instability along with the overall weak surface pattern look to temper

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