Forecast Discussions mentioning any of "ACARS" "MDCRS" "AIRCRAFT" "TAMDAR" "AMDAR" "WVSS" received at GSD on 05/09/19


Area Forecast Discussion
National Weather Service Houston/Galveston TX
1006 PM CDT Wed May 8 2019 .DISCUSSION... Surface analysis shows lingering surface boundary from earlier convection situated from roughly Columbus-Cleveland. Aircraft soundings from the Houston area indicate a saturated layer from the surface to about 700mb below a weak capping inversion. Continued moist flow from the Gulf should provide periods of showers and isolated tsra...and some patchy fog in between. Water vapor imagery shows a weak ripple embedded in the sw flow aloft making its way up from nrn Mexico and s Tx which may enhance overall coverage later tonight esp along and north of boundary mentioned above. As always, we`ll be closely monitoring trends and note the lower thresholds for flash flooding where grounds are especially saturated. Overall, just minor tweaks to the forecast we already have out. 47 && .PREV DISCUSSION... /ISSUED 738 PM CDT Wed May 8 2019/ AVIATION... Activity looks to be dying off at this time...with the bulk of the stronger/more organized storms well E/NE of the CWFA. We are still seeing some isolated showers over the region (generally north of I- 10) and will be expecting these to dissipate, especially after sun set. Did keep with MVFR CIGS for tonight given the wet grounds and decreasing winds. So far, confidence remains low with the the near term models (e.g. the latest runs which seemed to have initialized poorly) so have kept with a general persistence type forecast with the TAFS going forward. The unstable and warm/moist airmass across SE TX should be supportive of convective development along or near any leftover outflow/meso boundaries that happen to be around. 41 && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 72 85 60 70 64 / 50 60 90 90 80 Houston (IAH) 73 86 67 76 69 / 50 70 90 90 80 Galveston (GLS) 77 83 73 79 74 / 40 40 90 90 70 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...NONE. GM...SMALL CRAFT SHOULD EXERCISE CAUTION until 7 AM CDT Thursday for the following zones: Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM...Coastal waters from High Island to Freeport TX out 20 NM...Galveston Bay... Matagorda Bay. Small Craft Advisory until 7 AM CDT Thursday for the following zones: Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM...Waters from High Island to Freeport TX from 20 to 60 NM. && $$