Flood Watch: Southern Centre; Huntingdon; Mifflin; Juniata; Franklin; Southern Clinton; Southern Lycoming; Union; Snyder; Montour; Northumberland; Columbia; Perry; Dauphin; Schuylkill; Lebanon; Cumberland; Adams; York; Lancaster

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Flood Watch — Southern Centre; Huntingdon; Mifflin; Juniata; Franklin; Southern Clinton; Southern Lycoming; Union; Snyder; Montour; Northumberland; Columbia; Perry; Dauphin; Schuylkill; Lebanon; Cumberland; Adams; York; Lancaster Severity: Severe. Certainty: Possible. * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...A portion of central Pennsylvania, including the following areas, Adams, Columbia, Cumberland, Dauphin, Franklin, Huntingdon, Juniata, Lancaster, Lebanon, Mifflin, Montour, Northumberland, Perry, Schuylkill, Snyder, Southern Centre, Southern Clinton, Southern Lycoming, Union and York. * WHEN...From 2 PM EDT this afternoon through Monday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Multiple rounds of slow moving thunderstorms are expected with torrential downpours and intense rain rates over 2 inches per hour possible. Localized rainfall totals could exceed 5 inches. While there remains some uncertainty to exactly where the greatest rainfall will occur, the setup favors some locally significant flash flooding. - http://www.weather.gov/safety/flood