gpt-6-astra Analysis · Sep 13, 2026
Unsafe
HIGH RISK
gpt-6-astra
88% confidence
Summary
Driving is hazardous on September 13 during the morning because of heavy thunderstorms and flash flooding in the warned area. Weather improves after noon, but flooded roads may remain unsafe after rain ends.
Hourly Forecast
7 AM 85%
1 mph
8 AM 82%
1 mph
9 AM 63%
1 mph
10 AM 62%
2 mph
11 AM 21%
3 mph
12 PM 8%
3 mph
1 PM 6%
5 mph
2 PM 4%
5 mph
3 PM 3%
5 mph
4 PM 4%
5 mph
5 PM 3%
5 mph
6 PM 0%
3 mph
7 PM 0%
2 mph
8 PM 0%
2 mph
9 PM 0%
2 mph
10 PM 0%
2 mph
11 PM 0%
2 mph
Key Factors
- 01 Flash Flood Warning for southeastern Morris County runs from 5:54–10:00 AM EDT; a broader Flood Watch lasts until noon. These expiration times come from alert text because the structured end times conflict.
- 02 The warning reports 1–1.5 inches already fallen, rainfall rates of 1–2 inches per hour, and flash flooding ongoing or imminent, including highways, streets and underpasses.
- 03 Hourly thunderstorm precipitation chances are 62–85% from 7:00–11:00 AM, dropping to 21% at 11:00 AM and 8% at noon.
- 04 Evening hourly precipitation chances are 0%, with light winds. Temperatures remain well above freezing.
- 05 Visibility, wind gusts and actual road flooding conditions are not provided, limiting certainty about route safety.
Confidence
88%
Recommendation
Avoid driving in the warned area from 5:54–10:00 AM EDT and postpone morning travel through noon if possible. Morning option: 11:00 AM–noon is comparatively better, but only if necessary and roads are confirmed clear; the Flood Watch still applies. Evening option: 6:00–8:00 PM has more favorable weather, provided flooding has receded and routes are open. Check updated warnings and closures, reduce speed on wet roads, and never enter floodwater; darkness makes flooding harder to recognize.