claude-haiku-4-5 Analysis · May 20, 2026
Safe
MEDIUM RISK
claude-haiku-4-5
88% confidence
Summary
Heat Advisory in effect until 8 PM EDT with heat index values up to 95 degrees; afternoon thunderstorms develop with 60-70% precipitation chance and wind gusts to 23 mph. Driving is manageable with timing precautions.
Hourly Forecast
7 AM 2%
6 mph
8 AM 2%
8 mph
9 AM 2%
9 mph
10 AM 2%
10 mph
11 AM 4%
10 mph
12 PM 10%
12 mph
1 PM 18%
12 mph
2 PM 29%
12 mph
3 PM 40%
13 mph
4 PM 52%
13 mph
5 PM 64%
12 mph
6 PM 65%
12 mph
7 PM 34%
9 mph
8 PM 45%
8 mph
9 PM 45%
8 mph
10 PM 63%
7 mph
11 PM 39%
7 mph
Key Factors
- 01 Heat index reaching 93-95 degrees during peak afternoon heating (1-5 PM); risk of heat-related driver fatigue
- 02 Thunderstorms likely between 1 PM and 8 PM, particularly intense 5-7 PM window with 64-65% precipitation probability
- 03 Wind gusts up to 23 mph with westerly flow, increasing crosswind exposure and visibility hazards during storm activity
- 04 Wet roads from thunderstorms increase hydroplaning risk, especially if heavy rainfall occurs (0.1-0.25 inch possible)
- 05 Morning hours (7-11 AM) and late evening (after 8 PM) show clear, improving conditions
Confidence
88%
Recommendation
Safest driving windows: 7 AM to 11 AM (clear, sunny conditions before heat peak; temperatures 76-88°F, light 6-10 mph winds). Evening alternative: 8 PM onward (thunderstorms ending, cooler, winds diminishing to 7-9 mph). Avoid 1 PM to 7 PM window during peak heat and thunderstorm activity. If driving midday is necessary, use headlights in storm zones, reduce speed on wet roads, and take frequent hydration breaks.