Bay of Campeche Area of Interest--30% 2 day, 70% 7 day odds of Development

[WxWatcher007]

The historically quiet Atlantic may have one final gasp before closing the door on the season, and this one is in the southwestern Gulf. 

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 AM EDT Mon Oct 5 2026

For the North Atlantic...Caribbean Sea and the Gulf of America:

1. Southwestern Gulf of America:
A trough of low pressure in the southwestern Gulf of America is 
producing disorganized showers and thunderstorms. Although 
environmental conditions appear to be marginally conducive, gradual 
development is becoming more likely, and a tropical depression is 
likely to form during the middle or latter portion of the week. This 
system is expected to drift eastward over the next few days, before 
it turns northward.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 7 days...high...70 percent.



Forecaster Kelly

 

We've all been tracking this one for a few days, and while odds have significantly increased, there's still a fair amount of uncertainty on what this one could actually become. 

While development looks likely with the geographically favorable genesis location of the Bay of Campeche (the concave nature of the region promotes spin) alongside warm SSTs and an upper level pattern favorable for divergence (promoting strong convection) there are issues with westerly shear if the system is not perfectly aligned with the jet coming from the west and potentially dry air. 

Most guidance at least at the moment is modest in intensity as it pulls the eventual system northeast into the northern Gulf coast. 

[WxWatcher007]

20 minutes ago, Seminole said:

Flood watches have been issued for most North Florida counties and some south Georgia and Alabama counties. 

Flood Watch
National Weather Service Tallahassee FL
Issued by National Weather Service Jacksonville FL
234 PM EDT Sun Oct 4 2026

ALZ068-069-FLZ007>019-027-108-112-114-115-118-127-326-426-GAZ122>131-
142>148-155>161-060000-
/O.EXT.KTAE.FA.A.0004.000000T0000Z-261006T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Geneva-Houston-North Walton-Central Walton-Holmes-Washington-
Jackson-Inland Bay-Calhoun-Inland Gulf-Inland Franklin-Gadsden-
Leon-Inland Jefferson-Madison-Inland Wakulla-South Walton-Coastal
Bay-Coastal Gulf-Coastal Franklin-Coastal Jefferson-Coastal
Wakulla-Northern Liberty-Southern Liberty-Randolph-Calhoun-
Terrell-Dougherty-Lee-Worth-Turner-Tift-Ben Hill-Irwin-Early-
Miller-Baker-Mitchell-Colquitt-Cook-Berrien-Seminole-Decatur-Grady-
Thomas-Brooks-Lowndes-Lanier-
Including the cities of Bethel, Babcock, Hoggard Mill, Dalkeith, West
Bainbridge, Capitola, Saint Joe Beach, Marianna, Vicksburg,
Mitchell Co A/P, Panama City, Metcalf, Monticello, Seminole State
Park, Simsville, Alpine Heights, Center Ridge, Freeport, Geneva,
Donalsonville, East Albany, Lockett Crossing, Yeomans, Davis Park, De
Funiak Spring Airport, Richter Crossroads, Moultrie
Municipal A/P, Dothan, Cairo, Southport, Coles, Peterson Hill,
Moultrie, Spence Airport, Howard Creek, High Bluff, Sumatra, Beverly,
Lovett, Turquoise Beach, Cottle, Cordrays Mill, Milford, Bonifay,
Chaires, Madison, Chipley, Chula, Bannockburn, Barker Store, Pelham,
Hartford, Santa Clara, Tallahassee, Ganer,
Riverturn, Doverel, Pine Valley, Ausmac, Decatur Co A/P,
Williamsburg, Newton, Commissary Hill, Holmes County Airport,
Graceville, Grady Co A/P, Iveys Mill, Bellview, Shivers Mill,
Berrien Co A/P, Hawkinstown, Tifton, Elpino, Centerville, Cluster
Springs, Nashville, Littman, Wetumpka, Killearn Estates, Pinetta,
Panacea, Albany, Fadette, Fitzgerald Municipal A/P, Lewis,
Pleasant Ridge, Camilla, Santa Rosa Beach, Lynn Haven, Apalachicola,
Nixon, Lynn, Killearn Lakes, Browntown, Festus, Cottonwood, Glendale,
Steinham Store, Dillon, Apalachicola Airport, Bainbridge, Blakely,
Bowens Mill, Courthouse, Chaires Crossroads, Grooverville, Kern, Oak
Grove, Thomasville, Twin
Pole, Dawson Municipal A/P, Barneyville, Springvale, Herod,
Quincy Airport, Early Co A/P, Cooktown, Brooks Co A/P, Cobb
Crossroads, Crystal Lake, Greggs, Odena, Little Hope, Alma,
Sandestin, Benevolence, Blue Springs, Queensland, Leonia, Wakulla
Springs, Hobby, Sweetwater, Waterloo, Palmyra, Alfords, Red Store
Crossroads, Lakeland, Cherry Lake, Ashburn, Sunsweet, Honeyville,
Magnolia Beach, Colquitt, Walker, Marysville, Buckhorn, Westwood,
Abba, Empress, Sylvester Airport, Worth, Valdosta Regional Airport,
Casa Blanco, Adel, Fort Gadsden, Graves, Hacoda, Scotts Ferry,
Branchville, Dickey, Morgan, Valdosta, Hanover, Wewahitchka, Capps,
Moncrief, Five Points, Port Leon, Pine Park,
Vilas, Elmodel Wma, Ashford, Ocilla, Port St. Joe, Pasco, Hanson,
Irwinville, Fitzgerald, Douglasville, Point Washington, Tilton,
Boykin, Cuba, Ashton, Beachton, Bennett, Drifton, Hopewell,
Arlington, Jarrott, Beacon Hill, Econfina, Enterprise, Bay City,
Turner City, Dixie, Saint Marks, Morgan Place, Harding, Mayhaw,
Dawson, Nankin, De Funiak Springs, Pretoria, Southwest Ga
Regional A/P, Sneads, Bradfordville, Bunker, Chipley Municipal
Airport, Hilliardville, Hays Place, Sylvester, Capel, Logan Field
Municipal A/P, Poplar Head, Portland, New Hope, Dills, Cook Co
A/P, Laconte, Frink, Buck Siding, Forrester, Medart, Overstreet,
Quincy, Wilma, Callaway, Cotton, Donaldsonville A/P, Abe Springs,
Quitman, Springvale Station, Clarksville, Teeterville, Maclay State
Gardens, Sopchoppy, Creels, Leesburg, Hardin Heights, Weber, Argyle,
Orange Hill, Central City, Chattahoochee, Clarks Mill, Cuthbert,
Gammage, Isabella, Fairchild, White City, Geneva
Municipal A/P, Youngstown, Durham, Gordy, Edison, Eucheeanna,
Massee, Red Rock, Malone, and Blountstown
234 PM EDT Sun Oct 4 2026 /134 PM CDT Sun Oct 4 2026/

...FLOOD WATCH NOW IN EFFECT THROUGH MONDAY EVENING...

* WHAT...Flash flooding caused by excessive rainfall continues to be
  possible.

* WHERE...Portions of southeast Alabama, including the following
  areas, Geneva and Houston, Florida, including the following areas,
  Calhoun, Central Walton, Coastal Bay, Coastal Franklin, Coastal
  Gulf, Coastal Jefferson, Coastal Wakulla, Gadsden, Holmes, Inland
  Bay, Inland Franklin, Inland Gulf, Inland Jefferson, Inland
  Wakulla, Jackson, Leon, Madison, North Walton, Northern Liberty,
  South Walton, Southern Liberty and Washington, and Georgia,
  including the following areas, Baker, Ben Hill, Berrien, Brooks,
  Calhoun, Colquitt, Cook, Decatur, Dougherty, Early, Grady, Irwin,
  Lanier, Lee, Lowndes, Miller, Mitchell, Randolph, Seminole,
  Terrell, Thomas, Tift, Turner and Worth.

* WHEN...Through Monday evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS...
  - Additional rainfall totals of 2 to 4 inches are forecast for most
    of the area with locally higher amounts of up to 6 inches
    possible through Monday, especially along the Emerald and
    Forgotten Coasts. Another area of concern is across south-central
    Georgia where locally heavy rainfall since Friday afternoon has
    primed the region more so than the rest of our area, so it wont
    take as much rain to cause flash flooding. Across the flood watch
    area, very high rain rates due to the tropical air mass may lead
    to flash flooding, especially in urban and poor drainage areas.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

PK

Given that this might be a late season sprawling system, definitely a good chance this is a moisture laden system. Resharing here.