GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 9/25/2021 0000 UTC
KCVG NAM MOS GUIDANCE 9/25/2021 0000 UTC


Date/Time
UTC
9/25
06:00
Sat
9/25
09:00
Sat
9/25
12:00
Sat
9/25
15:00
Sat
9/25
18:00
Sat
9/25
21:00
Sat
9/26
00:00
Sun
9/26
03:00
Sun
9/26
06:00
Sun
9/26
09:00
Sun
9/26
12:00
Sun
9/26
15:00
Sun
9/26
18:00
Sun
9/26
21:00
Sun
9/27
00:00
Mon
9/27
03:00
Mon
9/27
06:00
Mon
9/27
09:00
Mon
9/27
12:00
Mon
9/27
18:00
Mon
9/28
00:00
Tue
Date/Time
Local
9/25
02:00
Sat
9/25
05:00
Sat
9/25
08:00
Sat
9/25
11:00
Sat
9/25
14:00
Sat
9/25
17:00
Sat
9/25
20:00
Sat
9/25
23:00
Sat
9/26
02:00
Sun
9/26
05:00
Sun
9/26
08:00
Sun
9/26
11:00
Sun
9/26
14:00
Sun
9/26
17:00
Sun
9/26
20:00
Sun
9/26
23:00
Sun
9/27
02:00
Mon
9/27
05:00
Mon
9/27
08:00
Mon
9/27
14:00
Mon
9/27
20:00
Mon
GFS-X/N 67 45 74 56 80
NAM-X/N 69 46 73 55 79
GFS-TMP565453596365595451484863717367626058587673
NAM-TMP575553606567625552504963707267626058577573
GFS-DPT484950524947474645444546464647484949505758
NAM-DPT505050535148464343424344434446494949505356
GFS-CLDBKOVOVOVOVSCCLCLCLCLCLFWSCFWSCCLSCFWSCSCSC
NAM-CLDBKSCOVOVOVSCFWCLCLCLCLCLFWFWSCCLCLCLSCSCSC
GFS-WDR192021252629292422222023222319191819172121
NAM-WDR181922282830302723242124232322202020192221
GFS-WSP060605050808040201020306070702070705081109
NAM-WSP040607070810060302020308090805050706051106
GFS-P06 24 31 7 0 2 0 0 0 0 7 0
NAM-P06 9 42 3 0 1 1 1 1 911 5
GFS-P12 31 4 0 0 7
NAM-P12 42 1 3 9 11
GFS-Q06 0 0 0 0 0 0 0 0 0 0 0
NAM-Q06 0 1 0 0 0 0 0 0 0 0 0
GFS-Q12 0 0 0 0 0
NAM-Q12 0 0 0 0 0
GFS-T06 1/ 0 7/ 0 13/ 1 0/ 0 0/ 0 1/ 0 1/ 0 1/ 0 3/ 0 10/ 3
NAM-T06 1/ 0 1/ 4 0/ 2 0/ 0 0/ 0 0/ 0 1/ 0 1/ 0 2/ 0 3/ 4
GFS-T12 7/ 1 13/ 1 1/ 0 2/ 0 4/ 2
NAM-T12 1/ 4 0/ 2 3/ 0 2/ 0 2/ 2
GFS-POZ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
NAM-POZ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
GFS-POS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
NAM-POS 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 0 0
GFS-TYP R R R R R R R R R R R R R R R R R R R R R
NAM-TYP R R R R R R R R R R R R R R R R R R R R R
GFS-SNW 0 0
NAM-SNW 0 0
GFS-CIG 8 8 7 4 5 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
NAM-CIG 8 8 8 4 5 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
GFS-VIS 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
NAM-VIS 7 7 7 6 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
GFS-OBV N N N N N N N N N N N N N N N N N N N N N
NAM-OBV N N N N N N N N 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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