sign in sign up
<<
Home , 1932 Cuba hurricane, Hurricane Eta

10/31/20 - current

10/28 NHC began monitoring 11/1 Tropical Storm Eta 11/3 Cat 4 off stalled/dissipated/RAIN! 11/5 as TD re-strengthened into TS tropical 11/7 CubaType: “hybrid”?

pre-

“vigorous tropical wave”

SIO15 – 11/09/20 Recent Events 10/31/20 - current Hurricane Eta

11/8 south FL/Keys under hurricane warning

forecast: weird excursion into GoM

11/9 hurricane 11/13 as TS in NW FL

SIO15 – 11/09/20 Recent Events 10/31/20 - current Hurricane Eta

SIO15 – 11/09/20 Recent Events 10/31/20 - current Hurricane Eta

second-most intense Nov hurricane (after 1932 hurricane)

tropical Type: “hybrid”?

pre-tropical cyclone

“vigorous tropical wave”

SIO15 – 11/09/20 Recent Events 10/31/20 - current Hurricane Eta hurricanes need warm waters allowed Eta to • warm ocean water strengthen explosively • calm upper-level atmosphere

SIO15 – 11/09/20 Recent Events 10/31/20 - current Hurricane Eta

11/3 prior to landfall in Nicaragua

well-developed

rainbands over massive area

SIO15 – 11/09/20 Recent Events 10/31/20 - current Hurricane Eta

torrential rain -> mudslides, landslides, flash floods

235 fatalities ! 150 ! 41 Honduras ! 22 ! 17 ! 2 ! 2 Nicaragua ! 1 landslide in Queja buried 150 homes

SIO15 – 11/09/20 Recent Events 10/31/20 - current Hurricane Eta

Deutsche Welle, Guatemala

SIO15 – 11/09/20 Recent Events 10/31/20 - current Hurricane Eta

BBC, Honduras

SIO15 – 11/09/20 Recent Events 10/31/20 - current Hurricane Eta

12th hurricane of season

record-tying 28th named storm in exceptionally busy season

most powerful in 2020 Atlantic season

SIO15 – 11/09/20 Recent Events 2020 Season

in terms of # of named storms record-tying with 2005

TS Cristobal (6/1-12)

SIO15 – 11/09/20 Recent Events 2020 Atlantic Hurricane Season hurricane season: June-October

stronger ones/more typically after late Aug after ocean warmed

SIO15 – 11/09/20 Recent Events annotated after lecture: this is actually the remnants of Tropical Storm Odalys off Baja California SIO15 – 11/09/20 Recent Events SIO15 – 11/09/20 Recent Events dry air on ground upper-level clouds -> sunset ‘afterglow’ when sun below horizon illuminates high clouds SIO15 – 11/09/20 Recent Events Q: if this was from a TS, why was air on ground so low? A: I do not have a clear answer, but air on the ground experienced quick blast of hot air. Air may not have been able to adjust and take up more moisture fast enough to raise relative humidity. The consequence then is that rain may fall in the upper atmosphere but never reaches the ground (virga).

SIO15 – 11/09/20 Recent Events SIO15 – 11/09/20 Recent Events cold front/ winter storm heating by distant from NW TS Odalys from S

SIO15 – 11/09/20 Recent Events Mt Merapi acting up Mt Merapi most active in Indonesia one of 16 decade volcanoes

evacuations ongoing currently 300

GVP website has no info (lists June activity) last significant eruption 2010 19,000 told to evacuate unclear how many did 2018 353 fatalities phreatic eruption closed Yogyakarta Int. airport SIO15 – 11/09/20 Recent Events