Monday, March 15, 2010
Rain This Morning, Mixing With Snow This Afternoon
Upper air analysis shows a shortwave trough centered over Southwest New Mexico. The main forcing associated with the shortwave will move through the Trans-Pecos region, but some weak disturbances will rotate around the trough. These disturbances have resulted in some areas of moderate to heavy rain and thunderstorms this morning across the region, but mainly light rain has fallen so far in Amarillo. Rain will continue this morning and will likely increase in intensity. Rain and clouds will keep temperatures on the chilly side today with temperatures slowly dropping into the mid 30s by this afternoon. Forecast soundings suggest that wet snow will begin to mix with the rain around noon and then transition to all snow this afternoon as wet bulb zero heights drop under 1,200 feet. It's possible that there could be some minor accumulations (i.e. a dusting or less) of snow on grassy and elevated surfaces, but the recent warm temperatures have allowed soil temperatures to increase. Another forecast consideration today will be the strong northeast winds, which could gust as high as 30 mph. The snow should by 10 p.m., but clouds will hang tough overnight. Lows tomorrow morning will be near 32.
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