A winter storm is expected to bring heavy snow and colder temperatures to Colorado, impacting mountain regions and the Denver metro area, providing some drought relief but also causing slick roads and travel disruptions.
The D.C. area is experiencing patchy fog and will see increasing rain tonight, with heavy downpours expected through Wednesday, potentially easing the region's drought. A dense fog advisory is in effect until 2 a.m., with visibility dropping to 0.25 miles or less. Temperatures will rise to near 60 before gusty winds bring a drop into the upper 30s to mid-40s by Thursday. The rainstorm could bring 1 to 2 inches of rain, the most in over two months, with possible spotty flooding and winds over 30 mph.
Forecasters predict a fairly strong El Niño pattern for the upcoming winter, which will have implications for the US weather. The presence of El Niño will result in a more southerly storm track, bringing a warmer and milder winter for the northern United States and southern Canada. The northern tier of the US is expected to experience a dry winter with less snow, while the southern half of the country, including New Mexico, Texas, Louisiana, and Mississippi, will likely see an enhanced storm pattern and more rainfall, providing drought relief. However, seasonal forecasts have limited utility, and the impact of climate change on established weather patterns remains uncertain.
The remnants of Hurricane Norma are expected to bring showers and storms to the Central United States, providing some much-needed drought relief to the Plains. While heavy rain is not anticipated, there is a possibility of severe thunderstorms. Parts of West Texas and Oklahoma may see elevated rainfall totals of two to four inches, while eastern New Mexico to western Missouri could receive over an inch of rain. The wet weather may continue into the following week, offering further relief to areas experiencing moderate to exceptional drought conditions.