Thursday, April 23, 2009

Quick update


Getting this out later than I hoped, so limited discussion ahead.

Friday - no changes
Saturday - some clouds possible in the morning considering a bit more moisture with warm frontal boundary than earlier thought. Regardless sunny by the afternoon. Highs low 80's.
Sunday - Backdoor front advertised to slide a little further south than earlier indicated, so introduced more clouds to the forecast. There is also a slight risk of a shower or thunderstorm in the afternoon. Increased clouds will limit full heating, nevertheless, highs low 80's.
Monday - Much depends on the positioning of the backdoor boundary. It should be retreating northward during the day, and we'll see a drier column providing sunny skies with H85 temps just as high as ever. Again, highs low 80's.

Rest of next week - Next wave moves in, sending the front back south, and this one will plow through the ridge for good. H85 temps start out up around 15C through the early afternoon. The front will approach from the north-northwest, bringing increasing clouds toward the evening, and a chance of showers and thunderstorms at night. H85 temps crash through the night, down around 5C Wednesday morning and near 0C by the evening. Combined with clouds and persistent scattered showers and thunderstorms, highs will be sent back to around seasonal norms. Thursday will mark the beginning of temperature "recovery", with most of the moisture cleared, and the next wave in the northern plains pumping ridging back up toward the east.

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