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In the second week of December, Israel experienced exceptional precipitation amounts in the southern Israel coast and the exceptional snow accumulation in the Judea and Samaria hills. The most important event was the intense snow accumulation in Judea and Samaria during the night between Thursday December 12th and Friday December 13th. In about 12h or less they got about 50cm of snow in Jerusalem. In the Samaria hills the intense snow accumulation lasted throughout Friday, reaching about 1 meter of snow towards evening. The entire region was blocked, trees & power lines collapsed because of the snow load and about 60,000 people where in blackout, with the roads blocked all around them for a couple of days. (e-mail from the Israeli Met Service)
A report about the event from the Israeli Met Service can be found here.
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The figures above show radar images for the end of 12 December (provided by Israeli Met Service).
3. Predictability
3.1 Data assimilation
On the 11 December and beginning of of the 12 December a few SYNOP MSLP observation showed up on the rejection charts in the daily monitoring.
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the figure above shows the verification of weekly anomalies in the precipitation. Here we see that both week1 week 1 and week 2 had wetter than normal conditions for Israel.
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