claude-opus-4-8 Analysis · Jul 21, 2026
Unsafe
HIGH RISK
claude-opus-4-8
75% confidence
Summary
A Flood Watch is in effect through late tonight with widespread showers and thunderstorms producing potentially torrential rainfall of 2-3 inches per hour. Flash flooding is possible, especially in urban and poor-drainage areas.
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 (Severe) in effect for the area, flash flooding possible through late tonight
- 02 Widespread showers and thunderstorms with 80-100% chance of precipitation, most active this afternoon into evening
- 03 Heavy rain with rates of 2-3 inches/hour and total rainfall of 1-2 inches expected, risk of ponding and flooded roadways
- 04 Highest storm probabilities occur in the evening (17:00 76%, 18:00 84%, 19:00 98%, 20:00 89%, 21:00 90%)
- 05 Thunderstorms can reduce visibility and cause hydroplaning; winds up to 12 mph with gusty storm activity
Confidence
75%
Recommendation
Avoid non-essential travel today, especially during the heaviest storm periods and never drive through flooded roads (Turn Around, Don't Drown). If you must drive, the relatively lower-risk windows are morning around 07:00-08:00 (only 19% precipitation) and mid-afternoon around 14:00-16:00 (~50-54%); avoid the evening 17:00-22:00 window when storm chances peak near 98%. Monitor for Flash Flood Warnings.