gpt-6-astra Analysis · May 20, 2026
Safe
MEDIUM RISK
gpt-6-astra
83% confidence
Summary
Driving is generally reasonable with caution on May 20, especially in the morning, but afternoon and evening thunderstorms could create hazardous periods. Heat also increases driver discomfort and heat-illness risk.
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 Morning conditions are sunny with only a 2–4% precipitation chance through noon.
- 02 Thunderstorm chances begin at 1 PM EDT; precipitation probabilities peak at 64–65% from 5–7 PM and rise again to 63% from 10–11 PM. Rain may reduce traction and visibility.
- 03 The advisory text specifies heat through 8 PM EDT, despite inconsistent structured end-time metadata. Afternoon heat indices may approach 95°F.
- 04 Winds are generally 6–13 mph, with daytime gusts up to 23 mph. Temperatures remain well above freezing.
- 05 Visibility and storm-specific intensity and gust information are missing, limiting confidence in conditions during thunderstorms.
Confidence
83%
Recommendation
Prefer 7–10 AM EDT for morning travel. For evening travel, 7–8 PM EDT is a relatively better window, with a 34% precipitation chance, but thunderstorms remain possible; confirm conditions before departure. Avoid optional driving from 5–7 PM and 10–11 PM, when storms are most likely. Slow down on wet roads, increase following distance, and postpone travel if storms impair visibility. Use air conditioning and stay hydrated.