12-hour Forecast valid 00 UTC Day 3 (Hour 48)
The model forecast sounding for 00 UTC on Day 3 shows further erosion of the cold air near the surface, as winds veer to SE at low levels.
Task 4: Analyze this model forecast sounding to forecast what type of precipitation will be occurring 12 hours later (00 UTC on Day 3). (To assist with this question and others that follow, you can open the interactive skew-T with this sounding).
Which of the following factors will be important in forecasting the type of precipitation for 12 UTC on Day 2? (Choose all that apply, then click Done.) a) Depth of cold air (T<0°C) near the surface b) Wet-bulb zero level c) Freezing level