gpt-5.1 Analysis · Jul 18, 2026

Driving conditions today are hazardous due to multiple rounds of heavy showers and thunderstorms, some potentially severe, with a Flood Watch in effect and smoke reducing air quality and likely visibility at times. Flash flooding and torrential downpours are possible from late morning through late tonight.

• 01 Flood Watch from 10:00 AM through late tonight for possible flash flooding from excessive rainfall, including rapid 2–3 inch downpours in 1–2 hours.
• 02 Daily forecast calls for showers and thunderstorms likely from morning through late night with very high precipitation chances (around 90%) and 0.75–1 inch of new rainfall, increasing flooding and hydroplaning risk.
• 03 Some storms could be severe both during the day and evening/overnight, implying potential for very heavy rain, strong gusty winds, and reduced visibility while driving.
• 04 Hourly PoP is very high (80–93%) from late morning through evening, including during typical commuting times, so encountering heavy rain or thunderstorms while on the road is likely, not just possible.
• 05 Temperatures are well above freezing, so ice is not a concern, but ponding on roads, reduced traction, and sudden low visibility in downpours remain significant hazards.
• 06 Smoke is present or in areas of smoke for most of the day, which can reduce visibility and degrade air quality, especially for sensitive groups (consistent with the air quality alert).
• 07 Winds are generally moderate (5–12 mph) with gusts up to about 24–26 mph in storms, which can combine with heavy rain to make vehicle control and lane-keeping more difficult during the worst cells.