The National Weather Service of St. Louis has issued a Dense Fog Advisory for the early morning of December 25, with visibility reduced to a mere quarter of a mile in certain areas. According to the NWS, the Advisory was in effect until 9 AM for locations along and north of the I-70 corridor. Travelers waking up to a grey Christmas faced not only limited visibility but also a blanket of humidity at a full 100% saturation, accompanied by a mild temperature of 53°F.
In a stark contrast to the morning's foggy shroud, the latter part of the holiday promised more agreeable weather. Forecasts detailed by the NWS outlined conditions improving after 10 AM, with clouds hanging around and temperatures climbing up near a comfortable 65 degrees. That calm wind expectedly shifting east after noon was a subtle prelude to what would be a mostly cloudy night with lows hovering around 58°F.
Looking ahead, the weather prognosticators at the NWS anticipated a wanderlust of a weekend with Friday bringing plenty of sunshine and mercury readings stretching to a high near 70. "Mostly sunny," reinforced the buoyant weather sentiment, even as the winds shifted, favoring a more northwestern direction in the afternoon.
The forecast for the proceeding days is a not-so-subtle reminder that winter, with its fickleness, is upon us. Saturday night may see a light splash of rain, introducing an unsettled pattern that will culminate on Sunday with "a chance of rain, then rain likely and possibly a thunderstorm after noon," NWS reports. The sudden drop in temperatures that Sunday evening could lead brave enough souls to bet on a rain and snow mix before the midnight hour arrives and temperature plunges to a biting low near 21°F.
With this shifting weather tableau painting the start of the next week, NWS advises St. Louis residents to stay tuned to local forecasts and be prepared. In a larger scope of preparation, the Hazardous Weather Outlook reminds us of potential gusty winds amidst Sunday's thunderstorm activity, even though spotter activation is not anticipated at this juncture. For those interested in more detailed weather updates as they unfold, visit the NWS St. Louis webpage at forecast.weather.gov for the latest information.
