claude-sonnet-4-6 Analysis · Feb 21, 2026

February 21 daytime conditions are mostly sunny with mild winds and temperatures reaching 47°F, making driving generally manageable. However, an active Winter Storm Warning begins at 4:00 AM EST on February 22, and overnight temperatures will drop to near freezing (32°F) with a chance of rain and snow developing late night, signaling rapidly deteriorating conditions toward the end of the day.

• 01 Active Winter Storm Warning in effect from 4 AM February 21 to 6 PM February 22 EST, forecasting 8–16 inches of total snow accumulation and gusts up to 40 mph — though the worst impacts are expected to begin overnight into Monday.
• 02 Daytime temperatures on February 21 range from 34°F in the morning to a high of 47°F, with near-freezing temps (35°F) at 6 AM posing a possible black ice risk from overnight freeze.
• 03 Overnight low drops to 32°F with a chance of rain and snow developing after 3–4 AM on February 22, creating icy and slick road conditions by early Monday morning.
• 04 Precipitation probability is very low (0–3%) throughout the daytime hours of February 21, making daytime driving relatively safe.
• 05 Winds are light during the day (2–6 mph) and calm overnight (1–2 mph), so wind is not a significant daytime concern on February 21 itself.
• 06 The transition to snow and freezing conditions overnight means evening and late-night driving carries increasing risk as conditions deteriorate ahead of the storm.