GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 8/11/2022 0000 UTC
KCVG NAM MOS GUIDANCE 8/11/2022 0000 UTC


Date/Time
UTC
8/11
06:00
Thu
8/11
09:00
Thu
8/11
12:00
Thu
8/11
15:00
Thu
8/11
18:00
Thu
8/11
21:00
Thu
8/12
00:00
Fri
8/12
03:00
Fri
8/12
06:00
Fri
8/12
09:00
Fri
8/12
12:00
Fri
8/12
15:00
Fri
8/12
18:00
Fri
8/12
21:00
Fri
8/13
00:00
Sat
8/13
03:00
Sat
8/13
06:00
Sat
8/13
09:00
Sat
8/13
12:00
Sat
8/13
18:00
Sat
8/14
00:00
Sun
Date/Time
Local
8/11
02:00
Thu
8/11
05:00
Thu
8/11
08:00
Thu
8/11
11:00
Thu
8/11
14:00
Thu
8/11
17:00
Thu
8/11
20:00
Thu
8/11
23:00
Thu
8/12
02:00
Fri
8/12
05:00
Fri
8/12
08:00
Fri
8/12
11:00
Fri
8/12
14:00
Fri
8/12
17:00
Fri
8/12
20:00
Fri
8/12
23:00
Fri
8/13
02:00
Sat
8/13
05:00
Sat
8/13
08:00
Sat
8/13
14:00
Sat
8/13
20:00
Sat
GFS-X/N 83 61 78 57 81
NAM-X/N 83 58 80 58 82
GFS-TMP706867758081777167646370747672666259607775
NAM-TMP696767758081766965616170777872666360617974
GFS-DPT666565646463626261585755535253545353545456
NAM-DPT626263636461585655525250484850545454555656
GFS-CLDFWCLSCSCSCBKBKSCCLCLCLCLSCCLCLCLCLCLCLSCSC
NAM-CLDCLCLFWBKBKBKSCFWCLCLCLCLCLCLCLCLCLCLSCSCSC
GFS-WDR353535363535010403030404020303040505071418
NAM-WDR333402353434010303040405020103050706061817
GFS-WSP040302050608100705050407080705040404030402
NAM-WSP020303050609110505050507070705040303020604
GFS-P06 5 0 14 2 3 0 0 0 4 1 0
NAM-P06 4 4 19 1 0 0 1 0 0 0 2
GFS-P12 16 6 0 7 1
NAM-P12 27 5 1 0 4
GFS-Q06 0 0 0 0 0 0 0 0 0 0 0
NAM-Q06 0 0 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 3/ 4 14/ 5 3/ 5 0/ 2 0/ 0 0/ 0 0/ 0 0/ 0 2/ 0
NAM-T06 0/ 0 5/ 4 26/12 2/ 2 0/ 0 0/ 2 0/ 1 0/ 0 0/ 1 1/ 7
GFS-T12 5/ 4 17/ 8 0/ 2 0/ 1 0/ 1
NAM-T12 5/ 4 26/13 0/ 2 0/ 1 0/ 2
GFS-CIG 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
NAM-CIG 8 8 8 6 6 6 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
GFS-VIS 7 6 5 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
NAM-VIS 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 5 7 7
GFS-OBV NBRBR 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 NBR 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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