Atlantic - Hanna forms July 23, 2020 (tornado, average, storms, moving)

[Psychoma]

Thursday 23July Tropical Storm Hanna forms (formally TD8) about 385miles(620km) ESE of Corpus Christi, TX. The earliest 8th named storm in Atlantic, average 8th formation date is September 24.

Winds 40mph(65km/h), moving WNW 7mph(11km/h), pressure 1002mb.

Slow and steady strengthening expected until landfall. Landfall TX coast likely sometime Saturday. NHC currently forecasting a 65mph Tropical Storm.

-Tropical Storm Warning US/Mexico border to San Luis Pass, TX
-TS Watch San Luis Pass to High Island, TX
-TS winds of 39mph or higher is typically when you start seeing scattered downed trees and power issues.
-TS winds may arrive along the coast and slowly spread inland starting early Saturday morning.
-Rough surf along Gulf coast, increased rip current threat.
-Heavy rains of 3-5", isolated 10" for portions of Gulf coast of Louisiana and Texas and inland into Southern TX and Northern Mexico.
-Brief tornado spin-ups will be possible as rain bands come ashore this weekend, typically this will be just North and Northeast of where the storm center travels as it moves inland.


Official storm stats are released by the US National Hurricane Center (NHC) every 3hours at 2, 5, 8 & 11am/pmEDT (1,4,7 & 10a/pCDT) here: https://www.nhc.noaa.gov

[skyler7]

I hope everyone who may be reading this stays safe and OK from this storm!!

[LKJ1988]

Wished is was heading east. These storms hate FL and always move away. Outflow is starting to look good as the upper levels favor it. But not enough time and miles over water to become something super strong.

[Cambium]

These total might be bumped some. South Texas could see 10"+ localized spots





https://twitter.com/mattlanza/status...03575481442304





https://twitter.com/Met_CindyFitz/status/1286612684784500742/photo/2

[Psychoma]

Friday 24July 8aEDT/7aCDT
285miles(460km) E of Corpus Christi, TX.
Winds 40mph(65km/h)
Moving WNW 9mph(15km/h)
pressure 1001mb.
Recon and satellite show strongest part on the East and SE side of storm currently. West side is just a breeze With scattered showers really. This structure will continue to evolve as it gradually improves/intensifies.

[floridarebel]

Originally Posted by LKJ1988

Wished is was heading east. These storms hate FL and always move away. Outflow is starting to look good as the upper levels favor it. But not enough time and miles over water to become something super strong.

The craziest storm would be if Hannah moved slowly east to Tampa and intensified as a category 5.

[Psychoma]

Friday 24July 11aEDT/10aCDT
260miles(420km) E of Corpus Christi, TX.
Winds 45mph(75km/h)
Moving WNW 9mph(15km/h)
pressure 1000mb.

Slow and steady continues. NHC mentions surge of 1-3ft for US/Mexico border north to High Island, TX including Corpus Christi Bay, Matagorda Bay, and Galveston Bay. Surge Watch/Warnings are not posted unless it's 3ft or higher per protocol though.

[Psychoma]

Friday 24July 2pEDT/1pCDT
230miles(375km) E of Corpus Christi, TX.
Winds 50mph(85km/h)
Moving WNW 9mph(15km/h)
pressure 999mb.
Scattered rains continue to move onshore.

[LKJ1988]

Originally Posted by floridarebel

The craziest storm would be if Hannah moved slowly east to Tampa and intensified as a category 5.

Never gonna happen. Our worst case will be a super strong storm just west of Cuba coming at us from the southwest.

[Psychoma]

Friday 24July 8pEDT/7pCDT
190miles(300km) E of Corpus Christi, TX.
Winds 50mph(85km/h)
Moving W 10mph(17km/h)...high pressure to it's north forces it Westward/WSW.
pressure 998mb.

-NOAA43 Miss Piggy recon plane diverted to search and rescue just before entering storm so no recon so far this evening. Satellite shows a steadily intensifying storm.
-Storm Surge Warnings added: Baffin Bay to Sargent, TX for 2-4ft possible including coastal Bays. Storm Surge Warnings are issued when water rise of 3ft or more are expected/possible. Surge is typically highest at and just North of where eye makes landfall.
-Hurricane Warning: Baffin Bay to Mesquite Bay, TX (Winds 74mph or higher expected)
-Tropical Storm Warning: US/Mexico border to Baffin Bay, TX and Mesquite Bay to San Luis Pass, TX (Winds somewhere in the 39-73mph range expected).
-Conditions will be deteriorating later tonight - early Saturday. Finish prep work. Landfall Saturday afternoon or so.
-TS winds currently extend out to 60miles(95km) from storm center).