Bertha 2026

AL022026 Advisory Number 8,

DISCLAIMER This is not official information or modeling, I’m just a dude on the internet. Please follow all guidance from NOAA and your local officials.

Windfield Map

gis_img

  • as of 2026-07-21T09:02:24+00:00
  • 100px per degree
  • GWAF 0.9
  • No Friction
  • default radius of maximum wind is 15kts

Data Files

Download Zip

File List:

  • bertha2026_100x100.csv
  • bertha2026_100x100.png
  • bertha2026_100x100.wld
  • bertha2026_100x100_2026-07-21T090200+0000.jpeg

Official Advisory Discussion

At 400 AM CDT (0900 UTC), the center of Tropical Storm Bertha was located near latitude 28.7 North, longitude 86.4 West. Bertha is moving toward the northwest near 5 mph (7 km/h). A slow northwestward to west-northwestward motion is expected today followed by a turn westward by the middle part of this week. On the forecast track, Bertha will move near or along the northern Gulf coast during the next several days.

Maximum sustained winds remain near 50 mph (85 km/h) with higher gusts. Some slight strengthening is possible later today, followed by gradual weakening through the middle of this week.

Tropical-storm-force winds extend outward up to 80 miles (130 km) from the center.

The estimated minimum central pressure is 998 mb (29.47 inches).

HAZARDS AFFECTING LAND

Key messages for Tropical Storm Bertha can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC.

WIND: Tropical storm conditions are expected within the warning area along the northern Gulf coast by late today into Wednesday. Tropical storm conditions are possible in the watch area in the Florida Panhandle later today. Tropical storm conditions are possible within the watch area in Louisiana by late tonight into Wednesday.

STORM SURGE: The combination of storm surge and the tide will cause normally dry areas near the immediate coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide…

Mouth of the Mississippi River, LA to AL/FL Border…2-4 ft Indian Pass, FL to Chassahowitzka, FL…1-3 ft Morgan City, LA to Mouth of the Mississippi River, LA…1-3 ft Lake Pontchartrain…1-3 ft

The deepest water will occur along the immediate coast. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office.

For a complete depiction of areas at risk of storm surge inundation, please see the National Weather Service Peak Storm Surge Graphic, available at hurricanes.gov/graphics_at2.shtml?peakSurge.

RAINFALL: Bertha is expected to produce rainfall amounts of 2 to 4 inches with isolated higher totals around 6 inches through Thursday along the Gulf Coast and adjacent inland locations from western Florida into southern Louisiana, including southern portions of Alabama and Mississippi. This rainfall may produce areas of flash flooding, especially in urban areas.

For a complete depiction of forecast rainfall associated with Bertha, please see the National Weather Service Storm Total Rainfall Graphic available at hurricanes.gov/graphics_at2.shtml?rainqpf and the Flash Flood Risk graphic at hurricanes.gov/graphics_at2.shtml?ero.

SURF: Swells generated by Bertha are affecting portions of the Gulf coast of Florida and are likely to spread westward during the week. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office.

A depiction of rip current risk for the United States can be found at: hurricanes.gov/graphics_at2.shtml?ripCurrents

NEXT ADVISORY

Next intermediate advisory at 700 AM CDT. Next complete advisory at 1000 AM CDT.

$$