Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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FXUS64 KHGX 141608

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1008 AM CST Sun Jan 14 2018

Only minor tweaks were made for temperature trends. Otherwise,
previous forecast seems to be on track. 11


.PREV DISCUSSION... /ISSUED 549 AM CST Sun Jan 14 2018/

VFR. Cirrus streaming in from the northwest as early day light
easterlies veer to the southeast by late this evening. 31

PREV DISCUSSION... /ISSUED 423 AM CST Sun Jan 14 2018/

After a cold start this morning, slightly warmer temperatures can be
expected this afternoon and even warmer temperatures can be expected
tomorrow as surface high pressure moves off to the east and winds come
back around to the southeast. The next cold front will move into Southeast
Texas Monday night and should be off the coast Tuesday morning resulting
in much colder temperatures (falling during the day and possibly reaching
the upper 20s up north and into the upper 30s at the coast by sunset)
along with increasing north winds (possibly breezy/gusty as strong high
pressure begins to build into the area from the north). With the colder
temperatures, it still looks like there is a chance that precipitation
initially as rain should change over to a wintry mix during the day
on Tuesday up north and could change over to a wintry mix further southward
on Tuesday night. At this time, it appears that the best wintry mix
setup might end up off to the west through southwest of our county
warning area. We`ll need to keep an eye on wind chill values with mid
teens to mid 20s currently in the forecast areawide. After a very cold
Wednesday night (no hard freeze warning anticipated), some of our northern
counties might have a shot of another wintry mix Thursday morning before
temperatures get a little warmer. It will be warmer Friday night and
Saturday with strengthening onshore winds. Another cold front comes
through the area on Sunday. 42

The southern periphery of high pressure centered over the Mississippi
River Valley has weakened winds below caution criteria and veered them
northeasterly. Northeast winds through the day will come onshore later
tonight as high pressure positions itself over the eastern U.S. seaboard.
Generally light onshore flow will occur through early Tuesday morning when
winds back more easterly in response to an approaching cold front. More
widespread light rain showers in response to a cold frontal passage across
the local waters late Tuesday morning. In the front`s wake...northeasterlies
will strengthen to Advisory levels. Tuesday and Wednesday Small Craft
Advisories for sustained greater than 20 knot winds and elevated seas.
Offshore advisories may remain in effect possibly longer into Thursday as
expanding eastern U.S. high pressure maintains a tight NE-to-SW orientated
northwestern Gulf pressure gradient. A shortwave trough and disturbance
passage Thursday will increase late week rain (shower) chances. 31


College Station (CLL)      54  37  62  31  33 /   0   0  10  50  50
Houston (IAH)              52  38  63  42  42 /   0   0  10  30  50
Galveston (GLS)            49  47  58  48  48 /   0   0  10  30  50




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