gpt-5-nano Analysis · Jul 21, 2026
Unsafe
HIGH RISK
gpt-5-nano
60% confidence
Summary
Heavy rain and a Flood Watch with likely showers and thunderstorms through tonight create significant flood and visibility risks; driving is hazardous outside a narrow morning window.
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 Flood Watch in effect through late tonight with potential for flash flooding in urban and low-lying areas.
- 02 Showers and thunderstorms likely all day with heavy rainfall possible (1–2 inches, up to 2–3 inches per hour in bursts).
- 03 High precipitation probability from mid-morning onward, including 7 PM–9 PM timeframe, increasing runoff and hydro issues.
Confidence
60%
Recommendation
Safer driving window (morning): 7:00 AM–8:00 AM. Safer driving window (evening): 4:00 PM–5:00 PM. Do not drive during peak shower/thunderstorm periods and avoid areas prone to flooding; monitor for rapidly changing conditions.