#8 Postby jeff » Wed Mar 23, 2005 9:01 pm
Not a very clear cut forecast for this weekend as guidance agreement is not the best.
Moisture return will get underway early Thursday as high pressure shifts E and SE winds return. Moisture return will be shallow at first, but will gradually deepen by late Friday as the Gulf fully opens. Trough over the Rockies will progress into the plains and force a cold front into central TX late Friday. Dry line will also advance into S and C TX ahead of the front. Temps. progged to reach the 90-95 range over the Rio Grande plains may break the cap by late afternoon. Severe thunderstorms may also develop over NE TX back into C TX during the early evening as an increasing low level jet and upper air dynamics combine with the slowing front.
Convective developments Friday night will determine the risk areas for Saturday. Surface front should remain stalled over C TX, however convective outflow boundaries may push this boundary southward more than guidance is suggesting. Vort max, heating, and increasing instability should yeild a stromy afternoon and evening over SE, C, and the coastal bend of TX. This is not clear cut and this far out there is much uncertainity
As for Easter Sunday, big storms should be off the coast and into LA by Sunday morning with wrap around clouds and light rain/drizzle over much of TX. Upper low will take most of the day to cross the state, so cloudy with light rain and cool temps. will be the rule. Gusty north winds under CAA regime will make it a raw day.
Again timing issues could shift the expected weather by many hours or even days. Just too far out right now to nail the timing down and the potential severe threat.
JL
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