gpt-5.4 Analysis · Jun 22, 2026
Unsafe
HIGH RISK
gpt-5.4
92% confidence
Summary
Driving conditions deteriorate significantly today as showers and thunderstorms become widespread from late morning through tonight. Heavy rain, possible severe storms, and a Flood Watch for the afternoon into late tonight create a high risk of water-covered roads and reduced visibility.
Hourly Forecast
7 AM 14%
5 mph
8 AM 27%
6 mph
9 AM 30%
7 mph
10 AM 42%
9 mph
11 AM 55%
10 mph
12 PM 51%
12 mph
1 PM 47%
12 mph
2 PM 64%
12 mph
3 PM 70%
13 mph
4 PM 72%
14 mph
5 PM 81%
14 mph
6 PM 99%
12 mph
7 PM 94%
12 mph
8 PM 99%
10 mph
9 PM 93%
9 mph
10 PM 91%
7 mph
11 PM 86%
6 mph
Key Factors
- 01 Flood Watch is in effect for this afternoon into late tonight, with flash flooding possible in poor drainage and urban areas.
- 02 Thunderstorm chances increase from late morning, becoming likely by 11 AM and very high from mid-afternoon through late evening.
- 03 Hourly precipitation chances rise to 64-99% from 2 PM through 11 PM, with continuous showers and thunderstorms expected in the evening.
- 04 Daily forecast states some storms could be severe and produce heavy rain, with 1-2 inches of rainfall possible during the day and another 1-2 inches possible tonight.
- 05 NWS alert mentions rainfall rates of 1-2 inches per hour, which can quickly create hazardous driving and flooding.
- 06 East winds increase through the afternoon with gusts as high as 25 mph, adding difficulty during heavier storms.
- 07 Visibility data is not provided, but heavy rain and thunderstorms commonly reduce visibility; this adds uncertainty to exact worst impacts.
Confidence
92%
Recommendation
If you must drive, the safest morning window is about 7:00 AM-9:00 AM before storms become more widespread. Avoid travel from roughly 2:00 PM through late tonight, especially 5:00 PM-11:00 PM when rain and thunderstorm coverage is highest; there is no good evening driving window, so postpone evening trips if possible.