Heavy rains that have battered Israel since the weekend have raised the level of the Sea of Galilee by 17 centimeters (6.6 inches), and the Water Authority expects even more in the coming days.

As a result of the deluge, the water level of Israel’s largest reservoir rests an eoncouraging 2.9 meters (9.5 feet) below the maximum, and the Water Authority predicts that another 30 centimeters will be added in the coming days, Israel Radio reported on Monday.

The Sea of Galilee is Israel’s main source of fresh water and its level is a matter of near-obsessive national interest. The sea now has its own Twitter account where regular posts provide updates on the water level.

Last month the water level rose by its highest amount for a December since 1994.

Rivers and stream in the north have transformed into rushing torrents as they empty into the Sea of Galilee.

The Ayalon river, which flows along the main highway through Tel Aviv and is typically near dry, was brimming with water on Monday.

The rain has also filled wadis and dry creeks in the south, causing flash floods and road closings. Emergency authorities are on alert to rescue drivers who may become trapped in waterlogged roads.