Expires:201801241930;;463746 FGUS81 KGYX 240730 RVSGYX NHC009-241930- Hydrologic Statement National Weather Service Gray ME 230 AM EST Wed Jan 24 2018 ...Ice movement on the Pemigewasset at Plymouth... At 2am river gauge data indicated ice movement on the Pemigewasset River at Plymouth. Recent rainfall is expected to result in continuing river rises overnight before cresting Wednesday morning. This rise may result in further ice movement with ice jams possible. Ice jams are unpredictable; river levels may fluctuate rapidly. Keep away from the river, especially at night when it is harder to recognize flooding. Report any flooding to the National Weather Service when safe to do so.