Severe weather potential today in Allegany County, increasing to the south and east

BREAKING: The Southern Tier of New York, including much of Allegany County, and Northern Pennsylvania are under threat of severe weather today, increasing significantly as one travels south and southeast.

The National Weather Service (NWS) at Buffalo says a fast moving low pressure system will cross the region today, moving from northwest to southeast, resulting in potential for rain, thunderstorms, and gusty winds, along with possible hail in the southernmost parts of Allegany and adjoining counties and increasing risks for tornadoes as one moves into Pennsylvania.

Maps accompanying this story, from the NWS Storm Prediction Center, show current risk forecast areas, although it is noted that any line can vary by as much as 25 miles, or over half the length of Allegany County.

Arrival times for the storms, depending on location, are projected for before noon today and continuing until late afternoon before dissipating in the evening hours.

Forecasters say that following this system, high pressure will build in tonight and bring a return to drier weather that will last through Tuesday. Unsettled weather returns by midweek when a Marginal Risk of excessive rain is possible.

Be Aware. Be Prepared. Stay Safe.TM and continue to monitor for weather updates in areas of residence, work and travel. A FLOOD WARNING continues for areas along the Allegheny River in the Olean area.

Those seeking greater depth of information for their own or other specific areas can determine the timing and types of precipitation for components of this weather event by using the links in our exclusive Weather Resources in the left column of this page or at

This source includes connections to Doppler radar, along with snow, wind and rainfall rates and timing in specific areas of the county, region and nation.

Simply use the Search feature in the upper left corner of most NWS pages for any geographic location, and then click on the Hourly Weather Forecast graph in the lower right side of the local page for an hour-by-hour forecast for today and the next six days.

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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