Key keywords: severe thunderstorm watch, Western New York (WNY), NWS Buffalo Office, damaging wind gusts, large hail risk, isolated tornado potential, flash flood advisory, WNY emergency management The National Weather Service (NWS) Buffalo Field Office issued a region-wide severe thunderstorm watch for all 9 counties in Western New York at 11:30 AM local time on Wednesday, August 23, with the alert set to remain in effect until 10:00 PM the same day. The watch covers Erie, Niagara, Chautauqua, Cattaraugus, Allegany, Genesee, Orleans, Wyoming, and Monroe counties, impacting more than 2.3 million residents across the WNY region. Meteorologists with the NWS warned that a fast-moving line of convective storms moving east across Lake Erie will bring multiple severe weather hazards to the area over the next 10 hours. Primary risks include wind gusts reaching up to 70 miles per hour, which are strong enough to tear shingles from roofs, snap tree branches, and knock down power lines, potentially leaving tens of thousands of households without power for several hours. Large hail measuring 1 to 2 inches in diameter is also expected in the strongest storm cells, which can damage vehicle windshields, outdoor property, and harm unprotected people and animals. The NWS also noted a low but measurable risk of isolated tornadoes, particularly in areas south of the I-90 corridor, with rotation already detected in pre-frontal cells as of midday Wednesday. Short-duration heavy rainfall of 1 to 2.5 inches per hour is also forecast, raising the risk of flash flooding in low-lying urban areas, poorly drained neighborhoods, and regions near small creeks and streams that flooded during similar storm events in spring 2023. Local emergency management agencies across WNY have activated their emergency operation centers as a precaution, deploying mobile response teams to high-risk areas and opening 12 community shelters across the region for residents who may need to evacuate their homes due to flooding or storm damage. Local government officials have issued multiple guidance updates for residents: avoid all non-essential travel during the peak storm period between 4 PM and 8 PM, secure all loose outdoor furniture and property ahead of the storms, keep a charged emergency kit with bottled water, non-perishable food, flashlights, and backup phone chargers accessible, and monitor local news and NWS alerts for updated warnings. All after-school outdoor activities, public outdoor concerts, and community events scheduled for Wednesday evening across WNY have been canceled or moved indoors to reduce public risk. Officials also reminded residents to follow the "Turn Around, Don’t Drown" rule if they encounter flooded roadways, as even 6 inches of moving water can knock over an adult, and 12 inches can carry away most passenger vehicles.