Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

FXUS64 KHGX 201457

Area Forecast Discussion
National Weather Service Houston/Galveston TX
957 AM CDT Tue Mar 20 2018

At 900 AM, surface high pressure was located over the Texas
panhandle. A tight pressure gradient gradient was noted across SE
TX and winds will likely remain breezy through the early
afternoon. 850 mb winds at LCH were 50 knots and some of this wind
energy will mix to the surface. The high will drift SE and settle
over SE TX tonight so would expect the gradient to relax this
afternoon as the sfc high approaches. Temperatures are a bit
tricky today. 12z soundings support warmer temperatures in the
mid/upper 70s but CAA and mixing from the winds will be competing
with full sunshine and warm 850 mb temps. Think the current
forecast is a good compromise between both camps and will let the
current temperature forecast ride. Enjoy the seasonal weather. 43


.PREV DISCUSSION... /ISSUED 627 AM CDT Tue Mar 20 2018/

VFR with just some cirrus moving to the southeast and east
across the area today. Northwest winds will become gusty
after sunrise then will weaken during the mid to late
afternoon hours (generally after 19Z well inland and after
23Z at the coast). Much lighter winds tonight and on into
tomorrow morning and gradually becoming east to southeast. 42


Elevated north winds and seas (caution in the bays and
advisories offshore) can be expected this morning in the
wake of a cold front. The offshore flow will diminish
during the afternoon and evening hours (bays starting
late this morning and offshore this afternoon) as high
pressure builds into the area. The high will move off to
the east on Wednesday and will allow southeast winds to
resume. Look for increasing southeast to south winds and
building seas during the second half of the week and on
into the weekend as pressures fall to the west and onshore
fetch lengthens. Caution flags are likely, and advisories
might be needed. 42


Elevated fire weather conditions will continue today. Expect
increasing gusty north winds this morning through early this
afternoon, but with the cooler temperatures, relative humidities
look to bottom out between 25% and 35%. Will continue to monitor
closely. 42


Galveston soared to a high of 89 degrees on Monday. This is nearly
20 degrees higher than the normal high, and even demolishes the
day`s previous record high of 80 degrees (1954). The day also set
the record high temperature for the entire month of March. The
previous record high was 87 degrees, which occurred in 2008.


College Station (CLL)      69  46  75  51  79 /   0   0   0   0   0
Houston (IAH)              71  49  76  53  77 /   0   0   0   0   0
Galveston (GLS)            70  58  70  62  73 /   0   0   0   0   0


     for the following zones: Galveston Bay...Matagorda Bay.

     Small Craft Advisory until 10 AM CDT this morning for the
     following zones: Coastal waters from Freeport to the
     Matagorda Ship Channel out 20 NM...Coastal waters from High
     Island to Freeport out 20 NM...Waters from Freeport to the
     Matagorda Ship Channel from 20 to 60 NM...Waters from High
     Island to Freeport from 20 to 60 NM.



Discussion...43 is the U.S. government's official web portal to all federal, state and local government web resources and services.