Area forecast discussion
National Weather Service Houston/Galveston Texas
601 am CDT Wednesday may 22 2013
Discussion...
see 12z aviation discussion.
&&
Aviation...
convection...for the most part has waned or pushed east of southeast Texas
early this morning. A weak outflow boundary has pulled up
stationary near the coast and feel this feature could be a focus
for additional rain showers/thunderstorms and rain later today. Added vcsh for klbx and kgls
to account for this. Elsewhere...LIFR ceilings will affect the
northern taf sites this morning before mixing out to VFR. The
Houston taf sites are north of the convection and south of the
LIFR ceilings but LIFR ceilings could still impinge on kiah before
sunrise. 43
&&
Previous discussion... /issued 457 am CDT Wednesday may 22 2013/
Discussion...
strong to severe thunderstorms with heavy downpours continuing
over the eastern areas. Outflow pushed south with storm earlier
this morning and now storms catching back up with the boundary and
will pose a severe threat (wind) for another hour or so as it
moves out of Liberty and possibly Chambers counties. Some
potential early this morning for some backbuilding down the
boundary and for heavy rains perhaps as far back as southeast
Harris County. Expect the boundary to continue to drop slowly
south and may become a focus for rain showers/thunderstorms and rain this afternoon with
daytime heating and any that do form will be slow movers.
Beyond today few changes noted to previous package. Onshore flow
slowly strengthens and drier air in the wake of the short wave moves out
into Gulf and then recirculates. Rain chances slowly increasing as
boundary lifts north on Friday around Crockett and Groveton areas
in the morning then westward during the day and again Saturday.
Rain chances only 20 percent though as cap may be to strong.
Temperatures at or just above seasonal norms through the weekend.
45
Marine...
considerably lighter winds are expected today as the gradient
relaxes. Surface high pressure will drift across the Central Plains
on Thursday and Friday keeping light onshore winds in place. Onshore
winds will prevail through the weekend with slightly higher speeds
Sat night into Sunday
&&
Preliminary point temps/pops...
College Station (cll) 91 72 91 71 90 / 10 10 0 10 20
Houston (iah) 90 72 90 72 90 / 30 10 10 10 10
Galveston (gls) 84 75 81 74 82 / 40 0 10 10 10
&&
Hgx watches/warnings/advisories...
Texas...none.
GM...none.
&&
$$
Discussion...45
aviation/marine...43
