Friday, November 17, 2023

Light Showers Last Night

View of the Catalinas at 7:48 am MST this morning, with a bit of fractus at east end.

Plot of detected CG flashes for 24-hours ending at 0813 UTC (above from Atmo and Vaisala) shows that there were some thunderstorms in northern portion of eastern Pima County - didn't hear any thunder here.

Showers were fairly widespread across the ALERT network - plots above and below show 24-hour rain amounts ending at 7:30 am this morning. Amounts were generally light: here at house we had 0.08"; the airport reported 0.04"; DM had 0.02"; and Atmo recorded 0.05". Most of rain occurred after dark last night from around 8 to 11 pm.

Morning sounding from TWC/TUS (above) has over an inch of PW, even with very dry mid-levels. Winds aloft are westerly and remain quite strong above 500 mb. Sounding has perhaps a sliver of CAPE.

Forecast above is for total precipitation through midnight tomorrow night and is from the 12 UTC WRF-RR run at Atmo. The current NWS forecast this morning (below) calls for best chance of additional showers occurring tomorrow.

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