A major winter storm is expected to bring heavy snow to central and northern Arizona starting Thursday and continuing Friday. It looks like Prescott hasn't had any significant snowfall this winter so far, but this storm could make up for that. With fresh snow on the ground, will Friday's high temperature in Prescott be able to get above freezing? Let's forecast Tmax and find out. Check out the hourly forecast graph to see the forecast for two days of snow and cold, about 20 F below average.
Question: Why does the presence of a snow cover sometimes make it difficult for the temperature to rise very much above freezing?
Forecaster | Tmax, deg F (error) | Comment | Day Score |
---|---|---|---|
OBSERVED | 32 | Tmax FINAL (minor problem). | |
GFS-MOS-18-DAY01 | 32 (0) | 2.8 | |
GFS-MOS-12-DAY01 | 33 (1) | 2.6 | |
GFS-MOS-06-DAY01 | 33 (1) | 2.6 | |
GFS-MOS-00-DAY00 | 34 (2) | 2.5 | |
GFS-MOS-00-DAY01 | 34 (2) | 2.5 | |
GFS-MOS-18-DAY02 | 34 (2) | 2.5 | |
GFS-MOS-12-DAY02 | 34 (2) | 2.5 | |
GFS-MOS-06-DAY02 | 34 (2) | 2.5 | |
NAM-MOS-12-DAY01 | 37 (5) | 2.0 | |
NAM-MOS-00-DAY01 | 38 (6) | 1.8 | |
NAM-MOS-00-DAY00 | 39 (7) | 1.6 | |
NAM-MOS-12-DAY02 | 40 (8) | 1.5 | |
CLIMATE | 56 (24) | NCDC Climate Normals, 1981-2010 | 0 |