MJO phase 5-7 has been favored recently which is a mixed bag for subseasonal TC favorability of the Atlantic.
SW Atlantic & subtropics appear to be the hot spots for TCs generally.
Plots: @webberweather.bsky.social
MJO phase 5-7 has been favored recently which is a mixed bag for subseasonal TC favorability of the Atlantic.
SW Atlantic & subtropics appear to be the hot spots for TCs generally.
Plots: @webberweather.bsky.social
🟢 Rising motion over west Africa has waned
🟤 Sinking motion has increased over West IO (-IOD)
🟢 Rising has increased over maritime continent (-ENSO)
🟤 Sinking has increased over the Amazon
🟢 Rising motion over west Africa has waned
🟤 Sinking motion has increased over West IO (-IOD)
🟢 Rising has increased over maritime continent (-ENSO)
🟤 Sinking has increased over the Amazon
This is how TCs attempt to remedy the negative effects of wind shear and reorganize.
This is how TCs attempt to remedy the negative effects of wind shear and reorganize.
While the west side is barren, the eastern side will be capable of gusty winds in excess of 50 mph and heavy rainfall as it moves into the Carolinas on Sunday.
While the west side is barren, the eastern side will be capable of gusty winds in excess of 50 mph and heavy rainfall as it moves into the Carolinas on Sunday.
A subtropical or tropical cyclone is forming, and some strengthening could occur before SE US landfall this weekend.
Next 🌀 name is Chantal.
A subtropical or tropical cyclone is forming, and some strengthening could occur before SE US landfall this weekend.
Next 🌀 name is Chantal.
Despite SW shear, dry air, and limited time over water, a TC could develop over the weekend before impacting the SE US with heavy rain and gusty winds.
Despite SW shear, dry air, and limited time over water, a TC could develop over the weekend before impacting the SE US with heavy rain and gusty winds.
Moderate SW wind shear, dry air, and land interaction will be impediments to development/strengthening of a TC.
Moderate SW wind shear, dry air, and land interaction will be impediments to development/strengthening of a TC.
This weak low will rotate up the wave axis, paralleling the Veracruz coast, buying itself time for TCG.
Next 🌀 name is Barry.
This weak low will rotate up the wave axis, paralleling the Veracruz coast, buying itself time for TCG.
Next 🌀 name is Barry.
About the only chance for development the next 7 days comes from this lingering trough SE of Bermuda.
Models are latching onto a weak low developing from this convection, but it will struggle to be well-defined.
About the only chance for development the next 7 days comes from this lingering trough SE of Bermuda.
Models are latching onto a weak low developing from this convection, but it will struggle to be well-defined.
📈 There are some hints of rapid intensification being possible if a more compact TC can form before landfall in Mexico.
The next 🌀 name is Erick.
📈 There are some hints of rapid intensification being possible if a more compact TC can form before landfall in Mexico.
The next 🌀 name is Erick.
This CCKW will soon cross into the Caribbean where it will enhance gyre activity near Central America.
Land interaction will likely impede TC formation, but it remains possible a brief TC forms in 5-7 days.
This CCKW will soon cross into the Caribbean where it will enhance gyre activity near Central America.
Land interaction will likely impede TC formation, but it remains possible a brief TC forms in 5-7 days.
This is fairly common in the early and late season anyways, but we may see more storms wait to develop until closer to land.
This is fairly common in the early and late season anyways, but we may see more storms wait to develop until closer to land.
This reduces vertical instability and intensity of convection over the tropics, inhibiting TC intensity and longevity. This was an important factor in analog year selection.
This reduces vertical instability and intensity of convection over the tropics, inhibiting TC intensity and longevity. This was an important factor in analog year selection.
1) El Niño is unlikely to develop this fall. Cool ENSO neutral conditions are favored.
While this generally helps Atlantic hurricane activity, the lack of ENSO influence will make tracking MJO activity more important during the season.
1) El Niño is unlikely to develop this fall. Cool ENSO neutral conditions are favored.
While this generally helps Atlantic hurricane activity, the lack of ENSO influence will make tracking MJO activity more important during the season.
While I no longer am writing seasonal forecast discussions, I do have some thoughts about the upcoming season.
This season is favored to be near the 1991-2020 avg (14 storms, 7 hurricanes, & 3 major hurricanes).
While I no longer am writing seasonal forecast discussions, I do have some thoughts about the upcoming season.
This season is favored to be near the 1991-2020 avg (14 storms, 7 hurricanes, & 3 major hurricanes).
Lafayette 4°F (all-time record)
Baton Rogue 7°F (2nd lowest on record)
Slidell 8°F (all-time record)
Lake Charles 6°F (2nd lowest)
New Iberia 2°F (all-time record)
1899 record still stands at BTR and LCH.
Lafayette 4°F (all-time record)
Baton Rogue 7°F (2nd lowest on record)
Slidell 8°F (all-time record)
Lake Charles 6°F (2nd lowest)
New Iberia 2°F (all-time record)
1899 record still stands at BTR and LCH.
𝟐𝟎𝟐𝟒 𝐒𝐞𝐚𝐬𝐨𝐧 𝐑𝐞𝐜𝐚𝐩:
18 Named Storms
11 Hurricanes
5 Major Hurricanes
161.6 ACE (12th highest since 1951)
>$220 billion in damage (2nd highest)
𝐒𝐭𝐫𝐨𝐧𝐠𝐞𝐬𝐭 𝐒𝐭𝐨𝐫𝐦:
🌀 Milton 180 Mph | 897 mb
𝐂𝐨𝐬𝐭𝐥𝐢𝐞𝐬𝐭 𝐒𝐭𝐨𝐫𝐦:
🌀 Helene >$120 billion (early estimates)
𝟐𝟎𝟐𝟒 𝐒𝐞𝐚𝐬𝐨𝐧 𝐑𝐞𝐜𝐚𝐩:
18 Named Storms
11 Hurricanes
5 Major Hurricanes
161.6 ACE (12th highest since 1951)
>$220 billion in damage (2nd highest)
𝐒𝐭𝐫𝐨𝐧𝐠𝐞𝐬𝐭 𝐒𝐭𝐨𝐫𝐦:
🌀 Milton 180 Mph | 897 mb
𝐂𝐨𝐬𝐭𝐥𝐢𝐞𝐬𝐭 𝐒𝐭𝐨𝐫𝐦:
🌀 Helene >$120 billion (early estimates)
Terrible timing for rapid intensification right before landfall in the Philippines.
Terrible timing for rapid intensification right before landfall in the Philippines.
Quite uncommon to see such a well choreographed train of typhoons that track over nearly the same area.
Quite uncommon to see such a well choreographed train of typhoons that track over nearly the same area.
Yet another typhoon is gathering strength in the WPAC and aiming toward Luzon, Philippines. Man-yi is forecast to be the 4th typhoon in just 10 days to impact the area.
Super Typhoon Yinxing 11/7
Typhoon Toraji 11/11
Super Typhoon Usagi 11/14
Yet another typhoon is gathering strength in the WPAC and aiming toward Luzon, Philippines. Man-yi is forecast to be the 4th typhoon in just 10 days to impact the area.
Super Typhoon Yinxing 11/7
Typhoon Toraji 11/11
Super Typhoon Usagi 11/14