Pacific cold front passed through Tucson area yesterday afternoon between 3 and 4 pm MST and showers and thunderstorms developed along and behind the front - mostly over higher elevations. I didn't hear any thunder here at the house but noted there were quite a few lightning strikes to the east over the Rincons. We had 0.02" of rain showers around dark here at the house. Across the Pima County ALERT gauge network 40 of 93 stations measured rainfall - 7 stations at higher elevations had amounts just over half an inch. Winds gusted generally 30 to 40 mph ahead of and with the front. Highest gusts I found in southeast Arizona were: 62 mph at Gutherie RAWS, 59 mph at ATMO rooftop anemometer, and 52 mph at Empire RAWS. Was a chilly, clear sunrise here with a low at house of 36F.
--------------------------------------------
Second vorticity maxima at 500 mb will move rapdily east-northeastward during the day today from northern Baja toward New Mexico bootheel. Low-level winds are more westerly today and it's hard to come up with any CAPE in the Tucson sounding for this afternoon. However, substantial 700 mb moisture will pull across southeastern Arizona, bringing more showers, particularly in the mountains. Final vorticity maxima comes across southeastern Arizona late tonight and tomorrow morning, acording to NAM forecast from 12 UTC this morning. The NAM forecasts a final round of more substantial precipitation with this feature.
No comments:
Post a Comment