Considerably high-level cloudiness moved into southern Arizona overnight helping keep temperatures a bit warmer last night. Low here at house was 24F. Low at TUS NWS observation site was only 35F this morning, in contrast to 32F yesterday. The exception was far southeast Arizona, where Douglas dropped to a low of 20F this morning, in contrast to their low yesterday's of 27F.
Difficult forecast situation for next week as fast, low-latitude flow will bring several S/Ws across Arizona with at least some moisture from Pacific. Situation is complicated by the strong, cold S/W trough to the north - making timing, exact locations, and possible amounts of precipitation hard to anticipate precisely. Pattern for next couple of weeks certainly looks el nino-ish!
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