gpt-5.4 Analysis · Jul 21, 2026
Unsafe
HIGH RISK
gpt-5.4
93% confidence
Summary
Driving conditions are hazardous today due to a Flood Watch and repeated showers and thunderstorms, with heavy rain and possible flash flooding expected to worsen this afternoon and evening. The lowest risk is early this morning, while the highest risk is from late morning through tonight.
Hourly Forecast
7 AM 19%
5 mph
8 AM 58%
8 mph
9 AM 60%
9 mph
10 AM 60%
10 mph
11 AM 75%
12 mph
12 PM 62%
10 mph
1 PM 75%
10 mph
2 PM 53%
9 mph
3 PM 50%
9 mph
4 PM 54%
9 mph
5 PM 76%
9 mph
6 PM 84%
8 mph
7 PM 98%
8 mph
8 PM 89%
8 mph
9 PM 90%
8 mph
10 PM 68%
8 mph
11 PM 60%
8 mph
Key Factors
- 01 A Flood Watch is in effect today, with flash flooding possible from excessive rainfall.
- 02 Alert details state heavy showers and thunderstorms may produce torrential rainfall of 2 to 3 inches per hour.
- 03 Hourly precipitation chances are high for much of the day, rising from 58-75% in the morning and afternoon to 84-98% this evening.
- 04 Daily forecast says some storms could produce heavy rain, with 1 to 2 inches of rainfall possible during the day and another 1 to 2 inches possible tonight.
- 05 The most hazardous driving period appears to be roughly 5 PM to 10 PM, when thunderstorms are forecast with 76-98% precipitation chances.
- 06 Visibility and road condition details are not provided, so localized flooding risk may be underestimated.
Confidence
93%
Recommendation
If you must drive, the relatively safer morning window is 7:00 AM-8:00 AM before storm coverage increases. There is no truly good evening window, but the least risky evening option is 10:00 PM-11:00 PM after the peak 7:00 PM-9:00 PM storm period; avoid travel from late morning through the evening, especially on flood-prone or low-lying roads.