Sandy Lake Warnings, Watches and Advisories

When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Sandy Lake.

Use the Radar Maps link provided to understand the trajectory of a storm.

Flood Watch issued September 12 at 10:23AM EDT until September 13 at 4:00AM EDT by NWS State College PA

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...A portion of central Pennsylvania, including the following counties, Cambria, Cameron, Clearfield, Elk, McKean, Somerset and Warren. * WHEN...From 4 PM EDT this afternoon through 4 AM EDT Sunday. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Numerous heavy showers and thunderstorms may train across Central PA tonight with confidence in greatest rainfall totals highest across the Northwest Mountains and Laurel Highlands on PA. Rainfall rates of 1-2 inches per hour could lead to local storm totals in the range of 2-4 inches. - http://www.weather.gov/safety/flood

Flood Watch issued September 12 at 2:21AM EDT until September 13 at 12:00PM EDT by NWS Mount Holly NJ

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of northern Delaware, including the following area, New Castle, New Jersey, including the following areas, Camden, Coastal Ocean, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington and Western Monmouth, and southeast Pennsylvania, including the following areas, Delaware, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks and Western Montgomery. * WHEN...From late tonight through Sunday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Showers and thunderstorms will develop this evening, and then will become more widespread late tonight and into Sunday morning. Some of these showers and thunderstorms will be capable of heavy rainfall, with as much as 1 to 2 inches of rain possible in the strongest storms in a short window of time. - http://www.weather.gov/safety/flood

Flood Watch issued September 12 at 1:54AM EDT until September 13 at 1:00AM EDT by NWS Pittsburgh PA

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of east central Ohio, including the following areas, Belmont, Guernsey, Monroe, Muskingum and Noble, Pennsylvania, including the following areas, Allegheny, Armstrong, Butler, Clarion, Fayette, Forest, Greene, Higher Elevations of Fayette, Higher Elevations of Indiana, Higher Elevations of Westmoreland, Indiana, Jefferson PA, Venango, Washington and Westmoreland, and West Virginia, including the following areas, Eastern Preston, Eastern Tucker, Marion, Marshall, Monongalia, Ohio, Preston, Ridges of Eastern Monongalia and Northwestern Preston, Western Tucker and Wetzel. * WHEN...From noon EDT today through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Scattered thunderstorm development during the late morning and early afternoon hours, followed by a more widespread push of heavy rain and additional thunderstorms, could result in a couple rounds of heavy rain. At least localized instances of flash flooding will be possible, particularly in locations that have wet soils from recent rain. - http://www.weather.gov/safety/flood

Flood Watch issued September 12 at 1:54AM EDT until September 13 at 1:00AM EDT by NWS Pittsburgh PA

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of east central Ohio, including the following areas, Carroll, Columbiana, Coshocton, Harrison, Jefferson OH and Tuscarawas, Pennsylvania, including the following areas, Beaver, Lawrence and Mercer, and West Virginia, including the following areas, Brooke and Hancock. * WHEN...From noon EDT today through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Scattered thunderstorm development during the late morning and early afternoon hours, followed by a more widespread push of heavy rain and additional thunderstorms, could result in a couple rounds of heavy rain. At least localized instances of flash flooding will be possible, particularly in locations that have wet soils from recent rain. - http://www.weather.gov/safety/flood