gpt-5.5 Analysis · Aug 27, 2026
Unsafe
HIGH RISK
gpt-5.5
86% confidence
Summary
Driving conditions are hazardous today due to a Flood Watch from noon through late tonight and widespread showers and thunderstorms, especially during the afternoon and early evening. Heavy rainfall may cause urban and poor-drainage flooding, with the worst travel period likely from about 2 PM to 7 PM EDT.
Hourly Forecast
7 AM 5%
2 mph
8 AM 27%
3 mph
9 AM 56%
3 mph
10 AM 50%
6 mph
11 AM 57%
7 mph
12 PM 56%
8 mph
1 PM 60%
8 mph
2 PM 85%
9 mph
3 PM 85%
8 mph
4 PM 85%
8 mph
5 PM 80%
7 mph
6 PM 80%
7 mph
7 PM 80%
5 mph
8 PM 37%
3 mph
9 PM 32%
2 mph
10 PM 31%
1 mph
11 PM 43%
1 mph
Key Factors
- 01 Flood Watch in effect from 12:00 PM EDT today through late tonight, with flash flooding possible from excessive rainfall.
- 02 Thunderstorms become likely in the morning, then showers and thunderstorms are expected in the afternoon with precipitation probabilities up to 85%.
- 03 Alert notes rainfall rates in thunderstorms may reach 1 to 3 inches per hour, with localized totals of 3 to 5 inches possible in strongest storms.
- 04 Evening still has an 80% chance of showers and thunderstorms from 6 PM to 8 PM, with continued chances later tonight.
- 05 Winds are light, and temperatures are well above freezing, so wind and ice are not major concerns.
- 06 Visibility data is not provided; heavy rain and thunderstorms may reduce visibility, but exact visibility impacts are uncertain.
Confidence
86%
Recommendation
Avoid nonessential driving during heavy rain or thunderstorms, especially 12 PM through 8 PM EDT and particularly 2 PM to 7 PM EDT. If you must drive, the relatively safer morning slot is 7 AM to 8 AM EDT before storms become likely, and the relatively safer evening slot is 8 PM to 10 PM EDT when precipitation chances decrease, though flooding and thunderstorms remain possible; never drive through flooded roads.