claude-sonnet-4-6 Analysis · Feb 18, 2026
February 18 features a Dense Fog Advisory until 10:00 AM EST with visibility at or below one quarter mile, followed by rain developing through the afternoon and evening with an 86–91% chance of precipitation by 4–5 PM. Near-freezing temperatures overnight (low near 34°F) introduce a secondary ice risk as the day ends.
- 01 Active Dense Fog Advisory until 10:00 AM EST: visibility one quarter mile or less, making early morning driving extremely hazardous.
- 02 Widespread fog persists through 10:00 AM with humidity reaching 96% at 8–9 AM, representing peak visibility danger.
- 03 Temperatures hover just above freezing (36–38°F) during the fog period, raising the risk of ice on elevated surfaces such as bridges and overpasses.
- 04 Rain develops mid-morning (chance from 10 AM onward) and becomes highly likely (86–91%) from 4:00 PM through 6:00 PM, creating wet and slippery road conditions.
- 05 Overnight low near 34°F combined with lingering rain and patchy fog after 8 PM increases the risk of black ice and reduced visibility into the night.
- 06 Patchy fog returns between 8:00 PM and midnight, adding a secondary visibility hazard for evening drivers.
Morning window: Avoid driving before 10:00 AM EST due to the Dense Fog Advisory. If travel is essential, wait until 10:30–11:30 AM when fog is expected to lift and rain probability is still relatively low (32%). Evening window: If you must drive in the evening, aim for 7:00–8:00 PM (19:00–20:00) when rain probability drops to around 45% and before patchy fog returns at 8:00 PM — but exercise caution as roads will still be wet. Avoid driving after 10:00 PM due to near-freezing temperatures, wet roads, and patchy fog creating black ice risk.