Thursday, September 10, 2015

Weather It Is (Dangerous, Dangerous Conditions)

Good Afternoon:

At about 2 PM (see below), the temperature reached 100 F, with light northerly winds and moderately low humidity.  Both dust and high heat has made for dangerously, dangerous conditions.

There is a 20% chance that Friday will be a degree or two Celsius warmer than today.

At the same time, dust continues to spin around low pressure located to our east and our forecast dust maps show that it won't be over tomorrow (as suggested elsewhere).

Even worse, as low pressure develops over the Mediterranean on Shabbat it should drag in dust from the sandy deserts located to our south and southeast.  The approach of a cool(er) front on Shabbat should cause the winds to pick up and may raise dust levels even further.

The good news is that late during the day on Shabbat the dust levels should drop from northwest to south, but this will be a slow process  -- so lighter  dust levels will persist until Sunday morning, especially in the south.

Sunday and the start of the New Year will be at least  a few degrees cooler than today and tomorrow's heat, and then cooler and more fall-like weather will follow.

Keep in mind that very hot temperatures, low humidity, and winds create a high fire risk.

These conditions are also extremely hazardous to our health.  Stay inside and try to stay in air conditioned rooms.

Shabbat Shalom,

Shana Tova,

Barry Lynn

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