06/18/2026
TROPICAL/SEVERE UPDATE
Jun 17, 2026 / 10:00pm ET
Tropical Storm Arthur formed in the Gulf earlier today and is currently centered just off the Texas coast near Galveston. It is expected to move inland tonight over southeastern Texas and become just remnants by early Thursday morning.
The remnants of Arthur are expected to track northeast toward Alabama and Georgia through the morning Thursday, with bands of showers and storms possibly forming out ahead of the shield of heavy rain expected to arrive after lunchtime.
THREATS:
1) FLOODING: The primary threat will be flash flooding. Our entire area is in a Level 3 out of 4 (Moderate) Risk for flash flooding Thursday and a Level 2 out of 4 (Slight) Risk for flash flooding Friday. A Flood Watch has been issued until 2AM Saturday with the possibility of 2-4" of rain areawide with locally higher amounts of 5" possible. Depending on where the heaviest rain sets up, rainfall rates could exceed 3"/hour in some areas.
2) SEVERE WEATHER: The combination of moisture, daytime heating, and an unstable atmosphere could set the stage for some storms to be strong or severe from lunchtime on toward midnight. Threats include damaging winds and possibly even an isolated, brief tornado. The entire area is in a Level 1 out of 5 (Marginal) Risk for severe weather.
TIMING:
MID MORNING THURSDAY: Storms fire ahead of the center of Arthur's remnants which is over Mississippi.
MID AFTERNOON THURSDAY: Storms possible throughout the area with the severe risk being at its highest for us. Any storms over the area could dump some very heavy rainfall.
THURSDAY EVENING: The center of Arthur's remnants begins to trace I-20 between Birmingham and Atlanta. The flood risk is maximizing as the main rain shield with embedded areas of heavy rain moves into the area.
OVERNIGHT THURSDAY -> FRIDAY: The main rain shield pushes to the east as the center of Arthur's remnants moves over the Atlanta metro area. Meanwhile a weakening line of storms associated with a surface front begins to approach the area from the northwest.
FRIDAY MORNING: The surface front slows to a crawl and semi-stalls just north of the area and showers and storms develop along it to the west moving eastward.
FRIDAY AFTERNOON/EVENING: The front finally pushes through at some point, but showers and storms will still be possible until it gets past the area.