07/27/2025
** LOW-END SEVERE RISK **
A boundary crossing the state this afternoon and evening may be responsible for a few stronger storms, primarily across the southern and eastern portions of the state. There will be high amounts of instability, thanks to the warm and humid airmass in place. The boundary will help to increase the wind shear, which is a change of wind speed and direction with height. With those ingredients, we will have the risk for stronger thunderstorms, particularly in the afternoon and evening hours.
BEST TIMING: Generally mid-to-late afternoon, a little earlier the more north you are (check 'Your Local Weather' on the website!)
ZONE 1 – *ISOLATED* Strong to severe thunderstorms are expected. The strongest storms may produce gusty to damaging wind gusts of 45 – 55 mph. Non-severe thunderstorms may still produce heavy rainfall and frequent lightning. LARGER CITIES/TOWNS IN THIS RISK: Pittsburgh, State College, Allentown, Johnstown, Harrisburg, Philadelphia.
READ: Keep in mind, severe weather *does not* impact every house or neighborhood. Unless it is a large outbreak, severe weather impacts will differ even across small areas. It is always good to be prepared by having multiple ways of receiving severe weather alerts and a shelter to take cover in when severe weather strikes.
FLOOD RISK: Due to the increased moisture content, any heavier storm or those that see more than one storm in a short period of time may see a risk of flash flooding. This does not look to be a major concern, although watch out for the risk in flood-prone and low-lying regions.
If you have any questions/concerns, feel free to reach out! Stay tuned!
