claude-haiku-4-5 Analysis · Sep 12, 2026
Safe
MEDIUM RISK
claude-haiku-4-5
85% confidence
Summary
September 12 will feature mostly sunny conditions during daylight hours with minimal precipitation risk, but heavy rain and thunderstorms are expected to develop after midnight into early morning Sunday, creating potential flooding hazards overnight.
Hourly Forecast
7 AM 0%
3 mph
8 AM 0%
3 mph
9 AM 0%
2 mph
10 AM 0%
3 mph
11 AM 0%
5 mph
12 PM 0%
6 mph
1 PM 0%
7 mph
2 PM 0%
7 mph
3 PM 0%
8 mph
4 PM 1%
9 mph
5 PM 1%
9 mph
6 PM 1%
9 mph
7 PM 1%
8 mph
8 PM 4%
7 mph
9 PM 12%
6 mph
10 PM 20%
6 mph
11 PM 28%
5 mph
Key Factors
- 01 Flood Watch in effect from late evening September 12 through Sunday morning with potential heavy rainfall rates (1-2 inches in strongest storms)
- 02 Precipitation probability increases significantly after 9pm, reaching 28% by midnight and 84% overnight into Sunday
- 03 Showers and thunderstorms expected between midnight and 5am Sunday with heavy rain capability
- 04 Morning daylight hours (7am-6pm) show mostly sunny/clear conditions with 0-1% precipitation probability
- 05 Wind speeds remain light to moderate (2-9 mph) throughout the day, not a hazard factor
Confidence
85%
Recommendation
Safe to drive during morning hours 7am-2pm EDT when conditions are mostly sunny and dry with minimal precipitation. Evening driving after 8pm EDT should be avoided or minimized, especially midnight to 5am Sunday when heavy rain and thunderstorms are most likely and flood potential is highest. Plan trips before 6pm or delay until Sunday morning after 6am when storms clear.