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Description of WRF-EMS Model
at RLX
Links:
Information about the
WRF-EMS modeling package
General information about the
WRF Model
Run Times:
The model is run every 3rd hour to a forecast time of 18 hours. The table
below describes model start times and which files are used for each model
run:
Initialization Time |
Start Time |
Initialization (LAPS) |
Boundary Conditions (NAM12) |
Web Post Time |
00Z |
01Z |
00Z |
18Z (6hr fcst) |
0315Z |
03Z |
04Z |
03Z |
00Z (3hr fcst) |
0615Z |
06Z |
07Z |
06Z |
00Z (6hr fcst) |
0915Z |
09Z |
10Z |
09Z |
06Z (3hr fcst) |
1215Z |
12Z |
13Z |
12Z |
06Z (6hr fcst) |
1515Z |
15Z |
16Z |
15Z |
12Z (3hr fcst) |
1815Z |
18Z |
19Z |
18Z |
12Z (6hr fcst) |
2115Z |
21Z |
22Z |
21Z |
18Z (3hr fcst) |
0015Z |
LAPS analysis is performed each hour at :20 minutes. There are 42 levels
and a resolution of 5 km. The LAPS analysis uses the RUC20 to for its background
fields, and is available about 10 minutes prior to the model start time.
The model is run on an 8 CPU 64 bit Linux cluster (1.8 GHZ). Total system
memory is 8GB. The model domain is 156x295 with a resolution of 5 km.
Post processing is completed on an additional dual processor Linux PC
(2.0 GHZ) for display of model information on AWIPS.
General Model Settings (These may vary at times):
Cumulus Parameterization: NONE
Microphysics: Ferrier
Planetary Boundary Layer: Mellor-Yamada-Janjic
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