gpt-5.1 Analysis · Aug 3, 2026
Flash flooding and multiple rounds of heavy showers and thunderstorms today create hazardous driving conditions, especially this morning. Conditions improve by evening as storms end and roads have more time to drain.
- 01 Active Flash Flood Warning through 8:00am with ongoing or imminent flash flooding on highways, streets, underpasses, and low-lying areas
- 02 Flood Watch in effect through 11:00pm with potential for multiple rounds of storms and very heavy rainfall (1–3 inches per hour, localized 3–5 inches) leading to rapid flooding
- 03 Hourly forecast shows a high probability of showers and thunderstorms from 7:00am through late afternoon, with 69–94% PoP and very high humidity, supporting additional heavy downpours
- 04 Daily forecast calls for 90% chance of precipitation today and new rainfall of 1–2 inches, which can worsen existing flooding and ponding on roads
- 05 Flood warning explicitly notes many rivers/streams running high and roadway flooding that will take time to recede, increasing the risk of encountering flooded or closed roads
- 06 Thunderstorms may reduce visibility suddenly and create hydroplaning risk even outside currently flooded areas
Avoid driving entirely from now through at least late morning, and strictly avoid any flooded or low-lying roads at all times. If you must drive, a relatively safer morning window is late morning to midday (about 11:00am–1:00pm), when storms become more scattered but flooding risk remains—plan only essential trips and allow extra time. The safest period for typical driving is this evening from about 7:00pm–10:00pm, when rain chances drop sharply (≤20% then near 0%), storms end, and road conditions should gradually improve, though you should still watch for any residual high water or closures.