gpt-6-astra Analysis · Aug 20, 2026
Unsafe
HIGH RISK
gpt-6-astra
84% confidence
Summary
Driving on August 20 is generally favorable in the morning, but afternoon and evening thunderstorms bring potentially hazardous heavy rain and flash flooding. The greatest forecast storm likelihood is from 2–8 PM EDT.
Hourly Forecast
7 AM 1%
3 mph
8 AM 3%
3 mph
9 AM 3%
3 mph
10 AM 9%
3 mph
11 AM 14%
2 mph
12 PM 23%
3 mph
1 PM 32%
5 mph
2 PM 56%
6 mph
3 PM 69%
6 mph
4 PM 80%
6 mph
5 PM 76%
7 mph
6 PM 75%
6 mph
7 PM 57%
7 mph
8 PM 46%
6 mph
9 PM 38%
6 mph
10 PM 27%
5 mph
11 PM 17%
5 mph
Key Factors
- 01 The Flood Watch description covers noon through late tonight, with the headline ending at 2 AM EDT August 21; the structured end time instead says noon August 20, creating timing uncertainty.
- 02 Rainfall rates of 1–3 inches per hour and localized totals of 3–5 inches are possible, potentially flooding low-lying roads and poor-drainage areas.
- 03 Hourly precipitation chances rise to 56–80% from 2–8 PM, peaking at 4–5 PM; heavy rain could impair visibility and increase hydroplaning risk.
- 04 Morning precipitation chances are low, with light winds. Temperatures remain well above freezing, so ice is not indicated.
- 05 Visibility measurements and wind gust forecasts are missing; actual road flooding is not reported.
Confidence
84%
Recommendation
Prefer 7–11 AM EDT for driving. Avoid nonessential travel from noon through the evening, especially 2–8 PM. A comparatively lower-risk evening slot is 10–11 PM EDT, when precipitation probability drops to 27%, but use it only if updated warnings and road conditions confirm your route is clear; flooding may persist after rain eases. Never drive through flooded roads.