#6492 Postby srainhoutx » Fri Jan 31, 2014 8:18 pm
Evening Update from Jeff:
Active weather period over the next 7 days will bring rapid changes to SE TX.
Warm southerly flow continues this evening with surface dewpoints pushing 60 along the coast and offshore buoys showing low to mid 60’s over the central and NW Gulf heading this way. With nearshore water temperatures in the low 50’s would expect the incoming warm and humid air mass to chill to saturation while passing over the cold waters near the coast and form a dense sea fog bank. So far no visibility issues along the coast this evening, likely due to winds being just a little too strong to form fog. Winds should gradually weakening tonight into Saturday and think this is the best time for dense sea fog to form. Sea fog will likely spread inland from the coast on Saturday evening as moisture increases and wind drop ahead of the next cold front on Sunday.
Sunday:
Frontal boundary will cross the region during the day with a chance of showers and maybe an isolated thunderstorm. Mid levels are looking warm so thunderstorms will likely be far and few…but there will be a good chance of showers along and ahead of the boundary. This is a shallow but potent front and temperatures at the surface will fall from the 60’s ahead of the boundary into the 40’s behind the boundary by Sunday afternoon into Sunday night.
Sunday night-Monday:
Cold surface high pressure will build into the region, but this will be short lived as the next upper trough approaches quickly from the west. Frontal boundary will stall over the Gulf waters and start to return northward as a warm front on Monday. Expect cloudy conditions with drizzle and fog developing from the coast northward on Monday afternoon into the evening hours. Temperatures will slowly warm from the 40’s into the 50’s.
Tuesday-Wednesday:
Warm front moves northward into the area, but not sure how far north it will get late Tuesday. Strong lift will arrive along with good moisture to produce a round of showers and thunderstorms across the area. Do not expect severe weather at the moment, but one is always aware of such potential when a warm front is in/near a region. Think once again warm mid level temperatures will suppress effective thunderstorm generation. Wednesday front will be of more arctic origin and will see a rapid temperature fall on Wednesday as the front crosses the region. Should see all rainfall end prior to any potential for freezing temperatures so not looking at any freezing/frozen precipitation.
Thursday-Saturday:
Arctic cold dome entrenches over the area once again. Think models are not handling the potential with this air mass very well given the frequent storms next week in a SW to NE track across the southern and central plains which will lay down a good amount of snow and ice across the plains. Cold air flowing out of Canada will be passing over this snow/ice and not modifying as much as it could. Think models will trend colder and colder over the next few days. Fast and active upper flow will continue and yet another storm system will approach the region by late Thursday into Friday. This storm looks fairly potent and with cold arctic air entrenched over the state some areas could be faced with P-type concerns. For now given the poor model run to run and model to model agreement will keep everything rain over SE TX and await better confidence.
Note: Latest release of the US drought monitor shows drought conditions continuing to worsen across SE TX. Rainfall has been lacking since late November and this trend has continued through December and January. The next few days will offer some of the best rain chances much of the region has faced in months and hopefully this will lead to some wetting of the top soil layers and vegetation and help keep fire weather concerns down. Unfortunately rainfall amounts look least to the southwest around Matagorda Bay and southwest of that where drought conditions are most severe currently.
0 likes
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Ike/Harvey
Member: National Weather Association
Wx Infinity Forums
http://wxinfinity.com/index.phpFacebook.com/WeatherInfinity
Twitter @WeatherInfinity