gpt-5.6-terra Analysis · Aug 20, 2026
Unsafe
HIGH RISK
gpt-5.6-terra
94% confidence
Summary
Driving is generally hazardous from noon through late tonight due to thunderstorms and a Flood Watch. Heavy rainfall may cause flash flooding, ponding, and rapidly changing road conditions, with the highest storm chances from 2 PM to 7 PM.
Hourly Forecast
7 AM 1%
3 mph
8 AM 3%
3 mph
9 AM 3%
3 mph
10 AM 9%
3 mph
11 AM 14%
2 mph
12 PM 23%
3 mph
1 PM 32%
5 mph
2 PM 56%
6 mph
3 PM 69%
6 mph
4 PM 80%
6 mph
5 PM 76%
7 mph
6 PM 75%
6 mph
7 PM 57%
7 mph
8 PM 46%
6 mph
9 PM 38%
6 mph
10 PM 27%
5 mph
11 PM 17%
5 mph
Key Factors
- 01 Active Flood Watch from noon August 20 through 2 AM August 21; flash flooding is possible, especially in urban, low-lying, and poor-drainage areas.
- 02 Multiple afternoon and evening thunderstorms are forecast, with precipitation chances rising to 56% at 2 PM and 69–80% from 3 PM to 6 PM.
- 03 The alert notes rainfall rates of 1–3 inches per hour, with localized totals of 3–5 inches possible.
- 04 Showers and thunderstorms remain likely into the evening, with a 46–57% chance through 9 PM and lower chances continuing later.
- 05 No visibility data is provided; heavy rain and nighttime conditions could further reduce visibility.
Confidence
94%
Recommendation
Safest morning slot: 7 AM–11 AM, before storm chances increase substantially. Evening slot: if travel is necessary, wait until about 10 PM–midnight, when storm chances decrease to 27% then 17%, but avoid any flooded or water-covered roads and do not drive through standing water. Avoid nonessential travel from noon through 9 PM, especially 2 PM–7 PM.