More wet weather expected; Flash flooding a possibility

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Flash flood warning until 6 a.m. Saturday


The National Weather Service is forecasting a high probability of heavy rainstorms that may cause potential for more flash flooding in Northern and Central New Mexico, including Los Alamos.

The advisory said clusters of storms will develop first over the mountains, then a broad cluster or line of storms should sink slowly southward in the vicinity of the central mountain chain during the evening and overnight hours.

The timing should be between noon and 6 a.m. Wednesday.

Impacts include:

·      Stronger storms will produce torrential downpours with rain at rates over 1 inch per half hour

·      Many locations have saturated soils from recent heavy rains, and these locations will need only moderate rain for flash flooding to develop today.  This includes the Las Conchas, Whitewater- Baldy and Little Bear burn scars.

·     Models forecast a broad cluster of storms to stall over south central areas late tonight and to remain there with moderate to locally heavy rain into Saturday morning. Due to a longer dwell time of the storms and already saturated soils, this area has an especially high risk of flash flooding. in place and strong forcing for vertical ascent, widespread showers and thunderstorms will develop, many with heavy rain.

The latest five-day total precipitation forecast calls for an additional 1-3 inches for many areas of the western two-thirds of New Mexico with locally higher amounts up to near five inches possible through Sunday night.