Friday’s Tucson Forecast: Keeping it 100 in the Old Pueblo

TODAY’S BEAMISH BLOGCAST

THE CLIFF NOTES

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Today – Mostly sunny. 100°, west-northwest wind 10 MPH.

Tonight – Mostly clear. 69°, southeast wind 5-10 MPH.

Tomorrow – 10% chance of storms, breezy. 98°, southwest wind 15-25 MPH.

FORECAST DISCUSSION

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Ice Break day has arrived.

Tucson officially reaches 100° this afternoon. This marks the first triple digit day of 2016. Daytime highs across southern Arizona run 8-10° above average for mid May. Mostly sunny skies prevail for much of the desert southwest. However, a stray shower can’t be ruled out today along the International Border of Pima/Santa Cruz Counties and the New Mexico state line.

Moisture values increase to start the weekend, leading to a slight thunder threat for Metro Tucson and points east. An approaching storm system scours out moisture Sunday, but kicks up gusty winds. Patchy blowing dust is possible on I-10 to wrap the weekend.

As this storm system passes through the state, daytime highs drop from the 90s this weekend to the 80s early next week. Gusty winds start to decrease by Tuesday.

SKY CANDY OF THE DAY

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The transit of Mercury, taken Monday by Adam Block at Mount Lemmon Sky Center. In a century, Mercury passes in front of the sun 13 times. Adam says he captured this by using an old Celestron 8-inch telescope and a solar filter.

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