🌀 TNW News Hurricane Operations Division – Official Bulletin
Issued: 5:00 PM Central Gulf Time (CGT) | Thursday, July 17, 2025
From: TNW Hurricane Operations Center, Aurora, IL
Division Chief: Todd Nardone

🔴 ALERT: INVEST 93L STILL A THREAT DESPITE WEAK STRUCTURE

A broad, disorganized low-pressure area—designated Invest 93L—continues to skirt the Gulf Coast today. As of this afternoon, satellite, radar, and surface data confirm that the center remains over or just offshore of the Mississippi coast, with most thunderstorm activity displaced to the south and west of the center.

Despite warm Gulf waters and marginally favorable upper-level winds, land interaction and disorganization have so far prevented tropical depression development. The window for further development is closing as the system is expected to move into Louisiana tonight.

⚠️ Main Threat: Flash Flooding
Whether this becomes Tropical Depression Dexter or not, heavy rainfall is still expected, especially in parts of southeastern Louisiana, southern Mississippi, and Florida’s Panhandle. Rain totals of 2–6 inches, with isolated amounts above 8 inches, are forecast by the Weather Prediction Center through Saturday. A Moderate Risk for excessive rainfall and flash flooding remains in place for much of southern Louisiana on Friday.

🌊 Storm Surge Risk: At this time, significant storm surge is not anticipated, but pockets of minor coastal inundation may occur in low-lying areas from Mobile Bay to Vermilion Bay, especially during high tide cycles.

📍 Model Guidance: UR modeling and tropical suite tracks continue to show a westward movement across southern Louisiana. Due to the weak nature of this system, predictability remains low.

📡 Stay Informed: For real-time radar, UR satellite graphics, tropical model guidance, and rainfall impact maps, visit the TNW Flash Hurricane Center at:

👉 www.TNWWeather.com/Flash-Hurricane-Center

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