1. Model Output Statistics
What form does a MOS forecast take?
Text (specific station) or gridded
Text Forecast for Caribou, ME
Gridded Forecast of 6-hr Precipitation Accumulation
Full Description

2. Model Output Statistics
N/X: min/max temperature
TMP: temperature
DPT: dewpoint temperature
CLD: cloud cover
WDR: wind direction (add 0)
WSP: wind speed (knots)
P06/12: probability of precipitation (%)
Q06/12: quantitative precipitation forecast
T06/12: T-storm probability (%)
POZ: probability of freezing precip.
POS: probability of snow
CIG: ceiling height category
VIS: visibility category
OBV: obstruction to visibility category
time

3. Model Output Statistics

4. Model Output Statistics
MOS performance: it really works!
Verification Statistics for 00 UTC Temperature Forecasts during the Cool Season

5. GFS MOS extended-range (MEX)

6. Lab Assignment for Sandberg CA Forecasts for Sept 28th – Oct 8th (We will be forecasting for the rest of the Quarter…this will just get use started)
Using MOS extended forecasts, enter your forecast for the week Tue,Wed,Thur,Fri . This provides a good temporal trend to model changes.
All forecasts are due by 00z for the 24hr period 06z-06z next day.
High-Low (F), Max Wind Speed (knots), Total Precip (inches)
To improve your daily forecast consider both NAM and GFS MOS for the current days forecast. Evaluating a more recent analysis and MOS forecast always will add value to the forecast process.

7. GFS MOS-Based LAMP guidance

8. LOCALIZED AVIATION MOS PROGRAM (LAMP) FOR SHORT-RANGE FORECASTING
Used a lot for Terminal Aerodrome Forecasts (TAF)