A forecast for DC on Tuesday

Tomorrow (Tuesday): Clouds will lower and thicken during the morning as low pressure approaches from the south and west. By afternoon snow and/or sleet is likely (60% chance) to develop. For additional details, see our Snow Lover's Crystal Ball. Not surprisingly, it will remain cold, with highs 30-35. Confidence: Medium

Tomorrow Night: Snow and/or sleet will change to all snow (70% chance), and may become moderate to heavy, especially east and northeast of the metro region. As the storm winds up, it will turn windy, with winds from north at 15-20 mph, with higher gusts. Confidence: Medium

Check out the Washington Post for the latest on the storm.