NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION. Privacy and Cookie policy

GMZ335 Galveston Bay- 936 Am Cst Sat Dec 2 2023
.dense fog advisory in effect until noon cst today...
Rest of today..North winds 5 to 10 knots, becoming northwest this afternoon. Bay waters smooth. Patchy fog late this morning and early afternoon. A slight chance of showers this afternoon.
Tonight..Northwest winds 5 to 10 knots. Bay waters smooth.
Sunday..Northwest winds 5 to 10 knots, becoming southwest in the afternoon. Bay waters smooth.
Sunday night..Southwest winds 5 to 10 knots, becoming west late. Bay waters smooth, becoming smooth to slightly choppy late.
Monday..North winds 10 to 15 knots, becoming northeast around 10 knots in the afternoon. Bay waters slightly choppy, becoming smooth in the afternoon.
Monday night..East winds 5 to 10 knots. Bay waters smooth.
Tuesday..East winds around 5 knots. Bay waters smooth.
Tuesday night..Southeast winds around 5 knots, becoming north after midnight. Bay waters smooth.
Wednesday..Northeast winds 5 to 10 knots, becoming east in the afternoon. Bay waters smooth.
Wednesday night..Southeast winds 5 to 10 knots. Bay waters smooth.

GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 936 Am Cst Sat Dec 2 2023
Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
areas of fog...some dense...can be expected early this morning in and around the bays and nearshore waters. Some fog may linger into the afternoon hours. Some showers are possible today. Light to occasionally moderate winds, low seas and no rain can be expected tonight through Wednesday night.

FXUS64 KHGX 021112 AFDHGX

Area Forecast Discussion National Weather Service Houston/Galveston TX 512 AM CST Sat Dec 2 2023

New AVIATION

SHORT TERM
(Today through Sunday Night)
Issued at 251 AM CST Sat Dec 2 2023

Friday's cold front is now offshore and has become quasi-stationary as it remains the focal point for lingering moisture along the coast through the afternoon hours. The more robust moisture axis is located over southeastern Louisiana, but there is enough moisture in place along and south of I-10 (PW values around 1.2"-1.4") that isolated to widely scattered showers will be possible through at least the early afternoon hours. Patchy fog is expected once again through the mid morning hours due to light winds along the coast and antecedent rainfall from Friday. The greatest potential for fog will be offshore (sea fog) and south of I-10. Further north, slightly drier air has filtered in, so the dew point depression should be too large to overcome for fog to develop. Cloud cover remains in place throughout the day (mainly for areas outside of the Brazos Valley/Piney Woods) due to a developing jet streak to our north placing Southeast Texas in the right entrance region (upper level divergence) and passing shortwaves embedded in the southwesterly flow aloft. So, today's temperatures have been trimmed down a teensy bit to reflect highs in the upper 60s to low 70s.

All of this is ahead of a reinforcing cold front that ushers in much drier air as surface high pressure slides in from the west. Rain chances quickly come to an end on Saturday afternoon following this FROPA. PW values quickly drop to 0.2"-0.3" by Saturday night (10th percentile: ~0.36"). A jet streak oriented southwest to northeast stretching from east Texas to the Ohio River Valley persists though, so the upper level divergence will leave upper level cloud cover overhead for most. Across the Brazos Valley/Piney Woods, there should be enough gaps between the clouds to see sufficient radiational cooling leading to low temperatures tonight in the low to mid 40s. Elsewhere, broken to overcast clouds will persist, so expect low temperatures in the upper 40s to low 50s. Sunday will be pleasant and dry, but upper level clouds remain along with surface winds shifting to southwesterly by the afternoon. As a result, expect high temperatures to top out mainly in the low 70s.
Temperatures on Sunday night will be about the same with lows ranging from the mid 40s to low 50s as upper level clouds continue to persist. These clouds should begin to erode late Sunday night though as the jet streak nudges eastward with upper level confluence becoming prevalent.

--------------------

Just a reminder that the KHGX WSR-88D radar went down for maintenance on November 27th and will be out of service for approximately two weeks from that date as it is receiving an important upgrade to extend its lifespan! During its downtime, adjacent radars are available for use including the local Terminal Doppler Weather Radars (TIAH and THOU) and other WSR-88D radars including KGRK, KSHV, KLCH, KPOE, KEWX, and KCRP.

Batiste

LONG TERM
(Monday through Friday)
Issued at 251 AM CST Sat Dec 2 2023

This period looks quiet as surface high pressure remains in control.
Cool nights (lows mainly in the 40s/50s) and mild days (highs mainly in the 60s/70s) can be expected with a gradual warming trend as each day progresses. Aloft, there will be a mainly west to northwest flow aloft, and this pattern will generally hold until next weekend when the next storm system takes shape out west. The current forecast has rain chances back into the area starting at the earliest late Friday night but more likely on Saturday and then increasing as the weekend progresses (this is next weekend).

42

AVIATION
(12Z TAF Issuance)
Issued at 512 AM CST Sat Dec 2 2023

Current conditions range from VFR at the northern sites to MVFR around the Houston metro area to LIFR along the coast due to lingering low level moisture from a stalled frontal boundary offshore. Cloud ceilings will gradually decrease throughout the rest of the morning hours with IFR conditions expected to reach IAH and MVFR reaching CXO. Cloud ceilings remain in the IFR/MVFR range into the early afternoon before gradual improvements following the passage of another cold front that brings in much drier air. Ceilings will lift to VFR area-wide in the late afternoon hours. GLS is expected to have decreased visibilities throughout the day due to sea fog, but should clear out close to sunset once drier air moves in. Light northeast winds become northwest by the late morning then trend towards becoming light and variable after sunset. Winds on Sunday will be predominantly southwesterly.

Batiste

MARINE
Issued at 251 AM CST Sat Dec 2 2023

Areas of fog (some dense) continue early this morning near/around portions of the Bays and nearshore waters. Some fog could linger into the late morning and afternoon hours before a drier airmass finally filters into the area. The current Dense Fog Advisory is in effect until 9 AM, and it might need to be extended. Some spots could see some showers develop today before the drier air's arrival.
Tonight through Wednesday night will be dry. Light to occasionally moderate winds and low seas can be expected through this period too.

42

CLIMATE
Issued at 251 AM CST Sat Dec 2 2023

For the second day in a row, Galveston broke their rainfall record.
Yesterday (Dec. 1st), the 1.32 inches that was recorded broke the old record of 1.29 inches set in 2009. On November 30th, Galveston's 3.93 inches broke the old record of 1.40 inches set in 1921.

42

PRELIMINARY POINT TEMPS/POPS
College Station (CLL) 69 43 72 45 / 10 0 0 0 Houston (IAH) 70 50 71 50 / 10 0 0 0 Galveston (GLS) 68 55 66 54 / 20 0 0 0

HGX WATCHES/WARNINGS/ADVISORIES
TX...None.
GM...Dense Fog Advisory until 9 AM CST this morning for GMZ350-355.

toggle option: (graph/table)

Houston Ship Channel, Galveston Bay, Manchester, Texas, Tide feet

San Jacinto Battleground State Historic Site, Texas, Tide feet

Full Color Weather Map

Link to Loop


Other links: GEOS-West     Contential US     Full GOES-East

Houston/Galveston, TX,