Storm Updates: Florida Panhandle Marginal, Texas Coast Moderate Rain — Sunday, October 4, 2026

This is the Sunday afternoon Storm Tracker desk for October 4, 2026. The organized severe window is small and coastal, not a plains outbreak. The Storm Prediction Center 2000 UTC Day 1 convective outlook, updated 2:28 p.m. CDT, kept a Marginal risk across parts of the Florida Panhandle and far southern Alabama and made no changes from the late-morning update. SPC listed no convective watches valid on the current watch page (stamp 1416 UTC) and no mesoscale discussions were in effect on the morning product check. The live problem this afternoon is water. The Weather Prediction Center Day 1 Excessive Rainfall Outlook, updated 0738 UTC, carries a Moderate risk of excessive rainfall for portions of the lower Texas coast, with a higher-end flood signal from Mobile Bay east across the Emerald and Forgotten coasts. Restoration exposure today is standing water, street flooding, and saturated roofs and ceilings, not a hail core or a widespread wind field.

What is live this afternoon

SPC’s Marginal area covers about 8,882 square miles and roughly 998,000 people. Larger centers named in the outlook include Pensacola, Panama City, Ferry Pass, Wright, and Brent. The only probabilistic severe risk drawn is a 2 percent tornado contour. No damaging-wind or large-hail areas are forecast. The discussion, carried forward at 20Z by Thornton from the 11:25 a.m. CDT Gleason/Chalmers update, says a nearly stationary front sits across the Southeast with precipitable water above 2 inches south of it. A weak offshore surface low may still form and briefly raise low-level shear near the coast. If that happens, storms can spin up transient circulations, mainly a waterspout or a brief tornado. Poor lapse rates and weak instability are the brake. Recent RAP runs even suggest the low-level wind bump may not arrive.

WPC’s Day 1 excessive-rainfall discussion, written by Weiss at 3:46 a.m. EDT and still the valid Day 1 product this afternoon, is the sharper desk. Precipitable water of 2.25 to 2.5 inches sits above the 99th percentile, warm-cloud depths are deep, and rainfall rates of 2 to 3 inches per hour are in the forecast along the stalled front. From Mobile Bay east to the Florida Panhandle, WPC expects some spots at 3 to 5 inches, locally as much as 8. A small Moderate was considered there and held at a high-end Slight after coordination with the Mobile and Tallahassee offices. On the lower Texas coast, between Brownsville and Corpus Christi, the same discussion raised a targeted Moderate. Repeated onshore cells, rates of 2 to 3 inches per hour, and local maxima above 10 inches are on the table. REFS and HREF showed a greater than 50 percent chance of at least 8 inches. Recent rain of 2 to 4 inches in 12 hours, and up to 8 inches in three days, is already on the ground in parts of that corridor. A separate heavier-rain signal sits on the Georgia coast near Savannah, where flash-flood guidance is locally 1 to 2 inches in three hours after recent saturation.

The National Weather Service short-range discussion at 3:50 p.m. EDT said locally heavy rain continues into Monday for southern Texas and northern Florida. A Flood Watch remains active across northern Florida into southern Georgia through Monday evening, with an additional 2 to 4 inches possible. The New Orleans forecast discussion at 12:50 p.m. CDT kept a Flood Watch through this evening for the eastern half of southeast Louisiana and coastal Mississippi, with another 1 to 3 inches possible east of I-55 and lighter rain west of it. Morning flash-flood warnings for parts of Bay, Walton, and Okaloosa counties had already expired by early afternoon. They are last-24-hour tickets, not live warnings at this writing.

Hotspots

Lower Texas coast: Brownsville to Corpus Christi

This is the Moderate excessive-rain area. Counties in the prior-cycle discussion that still frame the threat include Kenedy, Willacy, and the northeastern edge of Cameron, with the urban question centered on Brownsville, Harlingen, and any cell that drifts into Corpus Christi. Sandy soils can take a lot of rain. Urban streets and poor drainage cannot. Restoration read: water extraction and contents moves if a training band sits on a neighborhood, not a wind or hail claim cycle. Do not treat a Moderate rainfall outlook as a confirmed flash-flood warning for every block.

Florida Panhandle and far southern Alabama

Pensacola, Ferry Pass, Brent, Fort Walton Beach, Destin, and Panama City sit in the Marginal severe area and in the heavier Gulf-coast rain plume. Morning radar-indicated flash flooding was called for southeastern Okaloosa (Wright, Fort Walton Beach, Niceville, Destin) until 9:45 a.m. CDT, and for west-central Bay and southwestern Walton (Santa Rosa Beach, Freeport, Sandestin, Inlet Beach) until 10:45 a.m. CDT. Special marine warnings earlier today flagged waterspout potential south of Destin and along Apalachee Bay. Restoration read: check low-lying commercial pads, beach-corridor retail, and any roof that took repeated cells overnight. A brief coastal circulation is a tree-and-edge-metal check, not a territory-wide wind event. No tornado watch is up.

Southeast Louisiana, coastal Mississippi, and the Georgia coast

East of I-55 in the New Orleans service area, the Flood Watch runs through this evening, with localized flooding still possible on another 1 to 3 inches. Coastal Mississippi zones were included in that same watch. Around Savannah, WPC flagged a two-round setup: sea-breeze storms this afternoon and a possible second round tonight if the Panhandle wave lifts northeast. Restoration read: crawl spaces, flat roofs, and parking-lot drains. This is a Marginal-to-Slight flood problem on already wet ground, not a severe-thunderstorm warning day.

Just hit

The tickets already on the board are water, and they are morning products. National Weather Service Tallahassee, issued by Jacksonville, put a flash-flood warning on west-central Bay and southwestern Walton at 8:38 a.m. EDT after 1 to 3 inches, with another 1 to 2 inches possible. National Weather Service Mobile, issued by New Orleans, warned southeastern Okaloosa at 6:52 a.m. CDT after 2 to 4 inches, with another 1 to 3 possible. Both warnings expired before noon CDT. Waterspout-capable cells were noted on the nearshore Gulf from south of Destin toward Panama City Beach and on Apalachee Bay. No SPC severe-watch number was issued today. The most recent convective watch on the SPC page remains watch 676, and it is not valid. Iowa river flood warnings (Iowa River, South Skunk, Des Moines, Raccoon) are lingering river statements, not a new convective ticket.

Afternoon pulse

What this means for restoration teams

Stage water, not wind. On the lower Texas coast the job is extraction timing: a band can drop several inches in a couple of hours on ground that already took rain yesterday and Friday. On the Panhandle the job is the overlap of a Marginal spin-up risk and a Slight flood risk. Crews in Pensacola, Fort Walton Beach, and Panama City should expect wet ceilings and street closures before they expect shingle loss. Southeast Louisiana and coastal Mississippi are a watch-through-evening problem east of I-55. Savannah is a second-round overnight check, not a dispatch-now severe call. Heat warnings in Southern California and freeze headlines Monday morning in parts of Minnesota and Wisconsin are real, and they are not storm-damage tickets.

What this is not

This is not a Slight or Enhanced severe-thunderstorm day. SPC drew no wind risk and no hail risk. It is not a derecho. It is not a U.S. hurricane landfall. Hurricane Rachel, 105 mph at 2:00 p.m. MST, was near 20.1 N, 114.3 W, moving west at 6 mph, a few hundred miles southwest of the Baja California tip. Hurricane warnings on the Pacific waters off Mexico are offshore marine products, not a U.S. coastal warning. Hurricane Nolo was crossing the International Date Line and leaving NHC responsibility, well west-northwest of Hawaii. The Atlantic has no tropical cyclones this afternoon. A low may form over the southwestern Gulf around midweek, with a 7-day formation chance near 40 percent and a 48-hour chance near 0 percent as of the 2 p.m. EDT outlook. That is not a named storm on U.S. land.

Looking ahead one day

SPC’s 0600 UTC Day 2 outlook, issued 12:21 a.m. CDT, said severe storms are unlikely across the United States on Monday. Moisture and storms stay pinned to the northern Gulf Coast and Florida under a large surface high. WPC’s short-range discussion keeps locally heavy rain going into Monday on southern Texas and northern Florida, and it placed a Slight risk of excessive rainfall on southern Texas for tomorrow. The Flood Watch from northern Florida into southern Georgia runs through Monday evening. The front sags south. The severe window does not open behind it.

Sources

• SPC Day 1 convective outlook, 2000 UTC update, 2:28 p.m. CDT October 4, 2026: spc.noaa.gov/products/outlook/day1otlk.html
• SPC current watches, no watches valid, page stamp 1416 UTC October 4, 2026: spc.noaa.gov/products/watch
• WPC Day 1 Excessive Rainfall Outlook, updated 0738 UTC October 4, 2026: wpc.ncep.noaa.gov/qpf/ero.php
• WPC Short Range Forecast Discussion, 3:50 p.m. EDT October 4, 2026: wpc.ncep.noaa.gov short-range discussion
• NWS watches and warnings text summary: weather.gov WWA summary
• NWS New Orleans area forecast discussion, 12:50 p.m. CDT October 4, 2026
• NHC active cyclones, 2 p.m. EDT Atlantic outlook and Hurricane Rachel advisory, October 4, 2026: nhc.noaa.gov
• Morning Storm Tracker for this date: Storm Updates, October 4, 2026 (Morning)

Informational only — not an official warning. Confirm every local product at weather.gov and spc.noaa.gov before a crew rolls. Turn around, don’t drown.