GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 6/04/2020 1200 UTC
KCVG NAM MOS GUIDANCE 6/04/2020 1200 UTC


Date/Time
UTC
6/4
18:00
Thu
6/4
21:00
Thu
6/5
00:00
Fri
6/5
03:00
Fri
6/5
06:00
Fri
6/5
09:00
Fri
6/5
12:00
Fri
6/5
15:00
Fri
6/5
18:00
Fri
6/5
21:00
Fri
6/6
00:00
Sat
6/6
03:00
Sat
6/6
06:00
Sat
6/6
09:00
Sat
6/6
12:00
Sat
6/6
15:00
Sat
6/6
18:00
Sat
6/6
21:00
Sat
6/7
00:00
Sun
6/7
06:00
Sun
6/7
12:00
Sun
Date/Time
Local
6/4
14:00
Thu
6/4
17:00
Thu
6/4
20:00
Thu
6/4
23:00
Thu
6/5
02:00
Fri
6/5
05:00
Fri
6/5
08:00
Fri
6/5
11:00
Fri
6/5
14:00
Fri
6/5
17:00
Fri
6/5
20:00
Fri
6/5
23:00
Fri
6/6
02:00
Sat
6/6
05:00
Sat
6/6
08:00
Sat
6/6
11:00
Sat
6/6
14:00
Sat
6/6
17:00
Sat
6/6
20:00
Sat
6/7
02:00
Sun
6/7
08:00
Sun
GFS-N/X 65 85 68 84 61
NAM-N/X 68 84 67 83 60
GFS-TMP807975716967697781827874717071778182776664
NAM-TMP838177737170707681827974716969758081756563
GFS-DPT676667656564666767676767676768676359575555
NAM-DPT686768686868686968686868676666646260595555
GFS-CLDBKOVOVOVOVOVBKBKBKBKBKBKSCBKSCSCSCFWCLCLCL
NAM-CLDBKOVOVOVOVOVOVOVBKBKFWSCSCBKBKSCFWFWCLCLFW
GFS-WDR212120212120222424242424252731323333350105
NAM-WDR212122221815121526292726252833363433350106
GFS-WSP100705040202020305060403040405081010100708
NAM-WSP090806040402030403070404030306080811080507
GFS-P06 71 41 25 4 14 21 4 6 2 0 0
NAM-P06 66 45 35 8 1 0 6 3 4 0 0
GFS-P12 50 20 32 6 2
NAM-P12 52 12 6 6 2
GFS-Q06 3 1 0 0 0 0 0 0 0 0 0
NAM-Q06 2 1 0 0 0 0 0 0 0 0 0
GFS-Q12 1 0 0 0 0
NAM-Q12 1 0 0 0 0
GFS-T06 62/20 22/ 1 14/ 0 3/ 1 28/23 32/13 4/ 2 2/ 4 0/10 0/ 1
NAM-T06 53/25 23/ 5 18/ 1 7/ 3 11/15 16/12 9/ 7 4/ 6 3/10 2/ 3
GFS-T12 68/20 14/ 3 43/23 4/ 7 0/16
NAM-T12 66/25 18/ 3 16/17 12/ 8 3/11
GFS-CIG 8 8 7 7 7 7 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
NAM-CIG 8 7 7 7 4 2 2 3 6 8 8 8 8 8 8 8 8 8 8 8 8
GFS-VIS 7 7 7 7 7 7 5 7 7 7 7 7 7 7 7 7 7 7 7 7 7
NAM-VIS 7 7 7 6 5 4 4 6 7 7 7 7 7 7 7 7 7 7 7 7 7
GFS-OBV N N N N N NBR N N N N N N N N N N N N N N
NAM-OBV N N N NBRBRBRHZ N N N N N N N N N N N N N

Entries of "--" indicate that the current model run does not include forecast data for the time period.


Descriptions of MOS Elements

Definitions of Categorical Elements

QPF Categories
0 no precipitation
1 0.01 to 0.09 inches
2 0.10 to 0.24 inches
3 0.25 to 0.49 inches
4 0.50 to 0.99 inches
5 1.00 to 1.99 inches
6 2.00 inches or greater
Snow Fall Amount Categories
0 no snow or a trace expected
1 > a trace to < 2 inches
2 2 to < 4 inches
4 4 to < 6 inches
6 6 to < 8 inches
8 > = 8 inches
Visibility (VIS) Categories
1 < 1/2 miles
2 1/2 - < 1 miles
3 1 - < 2 miles
4 2 - < 3 miles
5 3 - 5 miles
6 6 miles
7 > 6 miles
Ceiling Height (CIG) Categories
1 < 200 feet
2 200 - 400 feet
3 500 - 900 feet
4 1000 - 1900 feet
5 2000 - 3000 feet
6 3100 - 6500 feet
7 6600 - 12,000 feet
8 > 12,000 feet
Cloud (CLD) Categories
CL clear
FW > 0 to 2 octas of total sky cover
SC > 2 to 4 octas of total sky cover
BK > 4 to < 8 octas of total sky cover
OV 8 octas of total sky cover or totally obscured
Precipitation Type (TYP) Categories
S pure snow or snow grains
Z freezing rain/drizzle, ice pellets, or
anything mixed with freezing precip
R pure rain/drizzle or rain mixed with snow
MAV Obstruction to Vision (OBV) Categories
N none of the following
HZ haze, smoke, dust
BR mist (fog with visibility >= 5/8 mile)
FG fog or ground fog (visibility < 5/8 mile)
BL blowing dust, sand, snow

MOS element descriptions and definitions are adapted from the NWS Meteorological Development Laboratory's web site.


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