Severe storm potential remains for today and Thursday, missed most of Allegany County yesterday

WEDNESDAY’S WEATHER UPDATE: Risks of severe weather remain for Allegany County, increasing tomorrow to as high as a 29 percent chance, as nearly all of the county missed a train-like barrage of Severe Thunderstorm Warnings, including wind, hail and heavy downpours, Tuesday night.

The National Weather Service (NWS) Storm Prediction Center (SPC) in Norman, Okla., is showing a Marginal Risk (up to 14 percent) of severe weather today in the region, increasing to a Slight Risk Thursday, for the areas on the two maps accompanying this story.

— A HEAT ADVISORY remains in effect for New York area counties until 8PM Thursday and until 8PM Saturday for Northern Pennsylvania counties, including neighboring Potter and McKean.

— A Marginal Risk of excessive rain accompanying any storms also is being forecast by the NWS Weather Prediction Center (WPC) for the Allegany County area for both today and Thursday.

— The Air Quality Alert, which has been declared in Cattaraugus and Wyoming counties for the past two days, has been lifted.

— Oppressive humidity is forecast to continue through Friday in Central Allegany County, gradually reducing through next Tuesday, with maximum heat indexes continuing through Saturday, with a significant break not occurring until Monday.

Last night’s storms rolled northeast through Cattaraugus County around 8:30PM yesterday, with the first Severe Thunderstorm Warning also including a small portion of Northwestern Allegany County.

Tuesday night’s train-like barrage of severe thunderstorm through a tip of Northwest Allegany and much of Cattaraugus counties.

High winds of up to 60MPH, quarter-inch hail and heavy downpours were indicated on radar, according to the NWS at Buffalo, the same as other storms which moved through parts of Allegany County on Tuesday afternoon and evening.

Only Marginal Risks of severe weather were forecast on both days.

Local weather component charts, which also include graphs of various weather aspects for a week’s period as it progresses, may be obtained through the Impact-Based Decision Support Services (IDSS) website which can be found in our exclusive Allegany Hope Weather Resources, linked from the left column of this page, or at

A chart can be obtained for any community in the United States or its territories by using the Search feature at the top of that page. Other links provide access to Doppler radar which can be used for tracking storms and additional timely information.

Be Aware. Be Prepared. Stay Safe.TM, remain indoors during high temperature periods, if possible, make plans for checking on the elderly and disabled, monitor children, pets, and those working outdoors, and check weather updates.

Heat Safety Tips and Resources are available at

Bookmarking appropriate NWS pages can help obtain the most timely information on forecast changes.

Allegany Hope is a Weather-Ready Nation AmbassadorTM and, due to Allegany County’s location being in or bordering three NWS forecast offices, Allegany Hope Weather Resources provides forecast and other information from the NWS at Buffalo for Allegany County north and west, Binghamton for Steuben County east, and State College, Pa., for Potter and McKean counties in Pennsylvania, along with regional and national data.

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