For snow to occur, temperatures from the base of the cloud to the surface must remain at or below 32 degrees.
DALLAS — Forecasting precipitation types—snow, sleet, freezing rain, or a mix—is notoriously challenging in North Texas. Imagine the journey of an ice particle as it falls from the clouds to the ground.
For snow to occur, temperatures from the base of the cloud to the surface must remain at or below 32°F. If air temperatures rise above freezing at any point during its descent, the ice particle begins to melt.
Should it pass through another layer of freezing air before reaching the ground, the melted particle refreezes into sleet. If it doesn’t encounter freezing temperatures again until it contacts the ground, it freezes on impact, creating freezing rain. On the other hand, if temperatures are consistently above freezing from the cloud to the ground, the result is rain.
The arctic cold front responsible for bringing the coldest temperatures of the season set the stage for snow. However, the area of low pressure delivering Pacific moisture to the state has slowed, allowing temperatures south of North Texas to rise slightly. This mix of arctic air and slightly warmer conditions means sleet is possible, particularly south of the DFW area. Freezing rain is not expected in North Texas.
Unlike freezing rain, sleet typically bounces off the ground rather than sticking, making it less hazardous. Nonetheless, it can still create travel challenges. Prepare for potential impacts, stay updated on the latest forecasts. Keep in mind that precipitation type and accumulation forecasts may change as new data becomes available.
Wednesday night: Some snow flurries will be possible. It’ll be very light and unlikely to accumulate.
Thursday morning: Snow showers possible. Light accumulations will begin.
Thursday afternoon: Snow showers continue. Snowfall may be heavy at times. Accumulations continue.
Thursday night: Snow showers continue but becoming lighter toward Friday morning.
Friday: Snow ends from west to east in the morning. Friday evening and night look dry.