Atlantic - Hanna forms July 23, 2020 (record, storm, city, sun)

[Psychoma]

Some random storm tips...kinda long ramble since first real storm of the season making US landfall...skip if you're used to storms: Keep in mind with COVID any shelters that open may have additional limitations and requirements. Hotels do not typically change pet policies due to any evacuation calls, make sure you have a place for your pets. If you're in the path where strongest winds are predicted then RV's or mobile homes unsecured are not recommended to ride storm out in. Cell towers typically have a day or so backup power, if run into any communication issues text can sometimes get through better. Storing water bottles in the freezer can help keep fridge cold if lose power. (May be too late to order from Amazon but I keep two thermometers in my fridge/freezer that also stores highest temp reached so I know later if food still good). Look up your specific forecast via https://www.weather.gov/ by typing in zip code or city, state into box in upper left corner. Your weather app just uses a specific weather model out of dozens and dozens to choose from with no human interpretation, typically one of the GFS model runs.


If you haven't been in a tropical system before, they move pretty slowly so when it first comes many times...its anticlimactic since its just some rain and nothing else really at first (depending on storm structure when it arrives to your area) and the constant coverage. But what happens is the wear and tear over several hours and it builds. So a 40 or 50mph winds seems like it's a good strong breeze but that wear and tear over hours is what brings tree and power lines down starting at around 40mph and higher. Around 60-70mph is when you see gas station awnings come down (typically the older 2 post kind). If you're in the strongest part of storm this go around the sound of the wind can wear on you as well. If you have kids, try to stay calm as your reaction can directly affect others around you. In past storms I liked to always picture how the sun was literally still shining above the clouds still. Storms are rated by their wind speed (typically highest around/near the center and less further away you get) but flooding is the biggest danger TS/Hurricanes pose. And over half of all flood related deaths in the US are vehicle related. DO NOT drive around barricades or into water covered roads. You don't know if road still there and in large scale weather events such as landfalling storm, emergency crews can't close or keep personnel at all flooded roadways. Not to mention many cars have their expensive brains on lower side of car, many under passenger seat...doesn't take much water to ruin your vehicle. DON'T tape any windows...that was the recommendation a few decades ago but it's found to cause more harm then good now (think flying pieces of tape with glass attached...). If you loose power it's going to be hot afterwards, make sure you're ready and have water stored. Strong TS or low end Cat1 hurricane expected yes, but it still packs a punch that will affect many over a large region with flooding rains reaching well inland across S Texas and into Mexico.

[Psychoma]

Fri 940pEDT/840pCDT: Recon resumes into TS Hanna, finds flight level winds at Cat1 strength, but about 55-60mph at surface, storms rated by surface wind speed but those higher winds will eventually mix down to surface. So Hurricane into Texas Saturday likely it appears.

[Psychoma]

Friday 24July 11pEDT/10pCDT
165miles(270km) ESE of Corpus Christi, TX.
Winds 65mph(100km/h)
Moving W 8mph(137km/h)
pressure 992mb.
Continues steady strengthening, now wrapping that convection around it's core, with weakest side currently the Southwest corner with not much wind there. Hurricane warning extended S to Port Mansfield, TX, TS Warning expanded N to High Island, TX, and Mexico US/Mexico border to Barra el Mezquital. Storm Surge raised to 3-5ft Baffin Bay to Sargent, TX.

[Psychoma]

Sat 25July 8aEDT/7aCDT
90miles(150km) ENE Port Mansfield, TX
100miles(160km) ESE Corpus Christi, TX.
Winds 75mph(120km/h)
Moving W 9mph(15km/h)...was off a tad on last nights number there above...
pressure 982mb
Cat1 Hurricane, large eye clearly visible on radar. Glad it'll come ashore later today...don't need anything sitting in the Gulf for long with how warm waters are. Surge will be a concern where Warnings are up, including their Bays and water ways that feed into them. Some brief smaller tornadoes will be possible as rain bands come ashore, mainly North of the storm center. Rains to come into S TX and N Mexico will likely end up being the bigger story in the end but a reminder hurricanes are multi-hazard and emergency and road crews will be busy during all this. Conditions will continue to deteriorate through the day in S Texas.

[LKJ1988]

It never had the time needed to become strong.

[Cambium]

Hanna forecasted to become a Cat 1 by NHC right at or near landfall this afternoon

Waves of rain/wind entering the state this morning

[Psychoma]

Sat 25July 11aEDT/10aCDT
75miles(120km) ENE Port Mansfield, TX
85miles(135km) SE Corpus Christi, TX.
Winds 80mph(130km/h)
Moving W 7mph(11km/h)
pressure 978mb
Hanna has been drifting Southwest lately. Eye size large at about 35-40miles diameter. Hurricane winds extend up to 25miles(35km) from center, TS winds 90miles(150km). Scattered power outages occurring closer to the coast with around 10,000 without power.

Wind Obs from North to South: Data from here: https://www.windalert.com/search/26.848/-95.622/7
Port O'Connor: 30mph sustained, gust to 40+mph.
Mustang Island (East of Corpus Christi): Winds sustained near 40mph, gust to 55mph.
Corpus Christi NAS: 41mph sustained, gust to 55mph
Corpus Christi Airport: 29mph sustained, gust to 40mph.
North Padre Island: 42mph sustained, gust to 52mph.
Port Isabel: 13mph sustained, gust to 23mph.
South Padre Island: 27mph sustained, gust to 31mph.


Surge Obs, from North to South: Data from here: https://tidesandcurrents.noaa.gov/in...orm/Hanna.html
Port O'Connor about 3ft, Moderate Flood stage, rising
Port Lavaca about 3.2ft, Moderate Flood stage, rising
Rockport/Aransas Bay about 1.9ft, nearing Minor Flood stage, rising
Port Aransas about 2.8ft, Minor Flood stage, rising
Nueces Bay about 2ft, Minor Flood stage, rising
Corpus Christi at USS Lexington about 2ft, Minor Flood stage, rising
Packery Channel about 3.2ft, Minor Flood stage, quickly rising
Bob Hall Pier about 4.5ft, Major Flood stage, rising
-Current data errors south of there
Port Mansfield, partial data issue but looks fairly flat.
Port Isabel almost 2ft, Minor Flood stage, rising/level.
South Padre Island USCG about 2ft, Minor Flood stage, rising slowly.

[Psychoma]

Strengthens until the very end...even with part of Padre Island entering the calm large eye, recon finding winds over water approaching Cat2 strength:
https://twitter.com/tropicaltidbits/...07723855888384

[Psychoma]

Port Mansfield eyewall vid from icyclone:
https://twitter.com/icyclone/status/1287129123941502977

[Psychoma]

Some Padre Island vids:
https://twitter.com/brianemfinger/st...16782574886913

And breaking thru the temp sand berms:
https://twitter.com/brianemfinger/st...97947369463813