claude-sonnet-5-5 Analysis · Jul 21, 2026
Unsafe
HIGH RISK
claude-sonnet-5-5
80% confidence
Summary
A Flood Watch is in effect with showers and thunderstorms likely nearly all day and worsening into the evening, with heavy downpours and flash flooding possible. Driving is hazardous, especially from mid-afternoon through the night.
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) for the region through late tonight, with the alert text citing July 22 at 2:00AM EDT; the alert's own window field lists only until 6:00AM on July 21, so the end time is inconsistent
- 02 Torrential rain of 2 to 3 inches per hour possible in heavy storms, with 1 to 2 inches of new rainfall expected today and tonight
- 03 Precipitation chance is 58-75% from 8am to 2pm, then 50-54% from 2pm to 5pm, then rises to 76-98% from 5pm to 10pm
- 04 Thunderstorms bring lightning, sudden downpours, reduced visibility and hydroplaning risk
- 05 Urban and poor-drainage areas are prone to flash flooding
- 06 Visibility data is not provided, and temperatures of 68-79F mean no ice risk; winds are light at 5-12 mph
Confidence
80%
Recommendation
Postpone non-essential travel and never drive through flooded roads. If you must go, the best windows are about 7:00-8:00 AM, before storms build (19% chance of rain), and about 2:00-5:00 PM, when rain chances dip to roughly 50-54%, though storms are still possible. Avoid 5:00 PM to midnight, the worst period with up to 98% rain chance. Check radar and watch for Flash Flood Warnings before leaving.