Houston, TX radar, during the early morning.
Northwest Houston, TX, during the early morning.
Houston, TX radar, during the late morning.
Houston, TX radar, during the early afternoon.
Houston, TX radar, during the early evening.
Northwest Houston, TX, during the early evening.
Locations: Northwest Houston, TX
Thoughts: The day was cool, wet, and cloudy. Scattered moderate to moderately heavy and heavy thunderstorms passed through the Houston, TX area, during the morning and part of the early afternoon. I think there was some isolated light to moderate showers and drizzle, during the rest of the afternoon, evening, and night.
Area Forecast Discussion
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
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000 FXUS64 KHGX 140001 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 601 PM CST Tue Feb 13 2018 .UPDATE... Area observations have shown visibilities fluctuating in the 1-3 mile range with high resolution guidance showing areas of dense fog developing overnight as additional low level saturation occurs. A Dense Fog Advisory has been issued for all of Southeast Texas and the adjacent coastal waters through mid-morning Wednesday. The 00Z Aviation Discussion is also included below. 45 && .AVIATION... Poor flight conditions will persist as IFR/LIFR conditions now either remain steady or further deteriorate to VLIFR as a warm front 80 miles south of the upper Texas coast lifts inland by Wednesday morning. Periods of light drizzle or rain are expected overnight with little to no improvement until late morning or early afternoon depending on how much insolation is able to penetrate a stubborn stratus deck and how quickly the warm front lifts north. Light and easterly winds will gradually become light and variable or light and southerly as the warm front lifts inland. Concerned that MOS guidance is too aggressive with increasing southerly winds by late morning behind the front as the surface pressure gradient remains rather weak. This would allow IFR/LIFR conditions to persist through the afternoon hours. Huffman && .PREV DISCUSSION... /ISSUED 347 PM CST Tue Feb 13 2018/ DISCUSSION... The bulk of today`s rain is moving across and out of the northeastern forecast area late this afternoon. As was the case yesterday...many communities have struggled to warm more than a few degrees (5 to 8 degrees) from morning minimum temperatures. Thus...under overcast and scattered precipitation...the majority of southeastern Texas will peak out in the middle 40s (north) to lower 50s (south) or about 15 to 20 degrees below typical Fat Tuesday standards. A period of quiet weather precipitation-wise through the evening but...with winds veering back onshore within the next 12 hours...the inland movement of a near-coastal warm front on Wednesday will keep at least low end/low QPF precipitation chances in play over the next 24 hours. Any returning precipitation will be light and primarily in the form of light mist...rain...or drizzle. With no discernible shortwave disturbance coming up the pike and central Gulf-based upper ridging expanding westward onto the upper Texas coastline...any short term precipitation will be of this very weak/low accumulation nature. The two main stories through the remainder of the week will be the return of maritime dense sea fog and subsequent daily warming back up to above normal by as early as tomorrow. Dense sea fog will advect inland and cause significant travel and commence issues on our local road and waterways. As today`s northeasterly winds veer more easterly through tonight and stick east-southeast ahead of the next frontal passage on Friday...lower 60 F dew point air will travel across low to mid 50 degree bay/shelf waters and produce the soup. Despite the continued overcast skies...strong warm air advection will push this trend for near to above normal temperatures from tomorrow through Friday. A relatively warm start in the upper 40s to lower 50s per overnight cloud cover/insulation and southwest flow pushing 85H temperatures into the mid teens "should" aid in allowing the day to warm into `at least` the lower 60s by mid-day. With this being said...the current synoptic set-up has honestly offered some skepticism to such a warm up. The ARW core of the WRF advertises near 70 F 2m temps while the NMM core is about 10 degrees cooler. Little to no deviance within the GEFS/Euro members on pushing at least lower 70s tomorrow. Not totally biting on either side but have had to throw the dice on a blend of multiple solutions that still come up with a very warm next couple of days in the 60s and 70s. The next cold front is timed to reach the area Friday afternoon and slowly sag to the coast through the evening hours. Eastern ridging may slow its southern progress and the forecast does display this slow trend in lowering post-frontal temperatures and dew points. Medium range progs keep rain chances ongoing into Saturday as mid-level focus along the 85H front (maybe exiting RRQ of southern jet branch?) seems to generate continued QPF through at least early Sunday. The backing air mass will not have much of a punch with the coldest and driest air remaining well off across the Great Lakes region. Warm air advection commences by early next work week so...after a relatively cooler Saturday in the average middle to upper 50s...warming back into the 60s/70s and sea fog will once again be in fashion by this time next week. 31 MARINE... Winds will gradually veer to the southeast overnight as a warm front approaches the coast and moves inland. A Warmer airmass moving over THE cooler shelf waters will lead to periods of dense sea fog developing. This looks like it could end up being a prolonged fog event considering the next front isn`t forecast to move off the coast until Friday night at the earliest...and quite possibly later than that (model guidance isn`t in the best agreement with the timing yet). Until then look for moderate to light onshore winds, 2-5 ft seas and periods of fog & drizzle. 47 && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 47 70 62 77 61 / 40 30 20 30 20 Houston (IAH) 50 73 63 78 63 / 40 30 20 30 20 Galveston (GLS) 53 68 63 72 63 / 30 20 20 20 20 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...Dense Fog Advisory until 10 AM CST Wednesday for the following zones: Austin...Brazoria...Brazos...Burleson...Chambers... Colorado...Fort Bend...Galveston...Grimes...Harris... Houston...Jackson...Liberty...Madison...Matagorda... Montgomery...Polk...San Jacinto...Trinity...Walker... Waller...Washington...Wharton. GM...Dense Fog Advisory until 10 AM CST Wednesday 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...Galveston Bay...Matagorda Bay...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...45 Aviation/Marine...14
Dense Fog Advisory
URGENT - WEATHER MESSAGE National Weather Service Houston/Galveston TX 552 PM CST Tue Feb 13 2018 ...Dense fog developing this evening... .Areas of dense fog are expected to develop across the region with visibility reduced to 1/4 mile or less. The fog should begin dissipate around 10 am as warmer southerly winds mix down across the region. TXZ163-164-176>179-195>200-210>214-226-227-235>238-141600- /O.NEW.KHGX.FG.Y.0010.180214T0000Z-180214T1600Z/ Austin-Brazoria-Brazos-Burleson-Chambers-Colorado-Fort Bend- Galveston-Grimes-Harris-Houston-Jackson-Liberty-Madison-Matagorda- Montgomery-Polk-San Jacinto-Trinity-Walker-Waller-Washington- Wharton- Including the cities of Alvin, Anahuac, Angleton, Bay City, Bellville, Brenham, Brookshire, Bryan, Caldwell, Cleveland, Coldspring, College Station, Columbus, Conroe, Corrigan, Crockett, Dayton, Eagle Lake, Edna, El Campo, Freeport, Friendswood, Galveston, Groveton, Hempstead, Houston, Humble, Huntsville, Katy, Lake Jackson, Lake Somerville, League City, Liberty, Livingston, Madisonville, Missouri City, Mont Belvieu, Navasota, Onalaska, Palacios, Pasadena, Pearland, Pierce, Prairie View, Richmond, Rosenberg, Sealy, Shepherd, Sugar Land, Texas City, The Woodlands, Tomball, Trinity, Weimar, Wharton, Willis, and Winnie 552 PM CST Tue Feb 13 2018 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST WEDNESDAY... The National Weather Service in Houston/Galveston has issued a Dense Fog Advisory, which is in effect until 10 AM CST Wednesday. * EVENT...Dense fog with visibility less than 1/4 mile. * TIMING...Worsening conditions throughout the evening with large areas of dense fog then continuing through 10 am. * IMPACT...Hazardous driving conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Dense Fog Advisory means visibilities will frequently be reduced to less than one quarter mile. If driving...slow down... use your headlights...and leave plenty of distance ahead of you. If you are walking near roads wear light colored or reflective clothing. && $$
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