claude-sonnet-5 Analysis · Aug 20, 2026
Safe
MEDIUM RISK
claude-sonnet-5
80% confidence
Summary
Morning hours are sunny and dry, but a Flood Watch is in effect and afternoon through evening brings a high chance (56-80%) of showers and thunderstorms with heavy rain risk, increasing flash flood and hydroplaning danger.
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 Flood Watch in effect until midnight for flash flooding potential, with 1-2 inches rain possible and locally 3-5 inches
- 02 Precipitation chance rises sharply from noon (23%) to peak around 3-5pm (69-80%) with thunderstorms
- 03 Heavy rain rates of 1-3 in/hr possible during storms, reducing visibility and traction
- 04 Patchy fog possible overnight between 3am-5am on 8/21, reducing visibility
- 05 Winds are light (2-7 mph) so wind is not a major concern today
Confidence
80%
Recommendation
Drive during the safer morning window of 7am-11am when conditions are sunny/mostly sunny with low precipitation chances. Avoid driving between 1pm-8pm when thunderstorms and heavy rain are likely; if evening travel is necessary, wait until after 9pm-10pm when precipitation chances drop below 40%. Watch for localized flooding on roads through midnight.