GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 4/19/2024 0000 UTC
KCVG NAM MOS GUIDANCE 4/19/2024 0000 UTC


Date/Time
UTC
4/19
06:00
Fri
4/19
09:00
Fri
4/19
12:00
Fri
4/19
15:00
Fri
4/19
18:00
Fri
4/19
21:00
Fri
4/20
00:00
Sat
4/20
03:00
Sat
4/20
06:00
Sat
4/20
09:00
Sat
4/20
12:00
Sat
4/20
15:00
Sat
4/20
18:00
Sat
4/20
21:00
Sat
4/21
00:00
Sun
4/21
03:00
Sun
4/21
06:00
Sun
4/21
09:00
Sun
4/21
12:00
Sun
4/21
18:00
Sun
4/22
00:00
Mon
Date/Time
Local
4/19
02:00
Fri
4/19
05:00
Fri
4/19
08:00
Fri
4/19
11:00
Fri
4/19
14:00
Fri
4/19
17:00
Fri
4/19
20:00
Fri
4/19
23:00
Fri
4/20
02:00
Sat
4/20
05:00
Sat
4/20
08:00
Sat
4/20
11:00
Sat
4/20
14:00
Sat
4/20
17:00
Sat
4/20
20:00
Sat
4/20
23:00
Sat
4/21
02:00
Sun
4/21
05:00
Sun
4/21
08:00
Sun
4/21
14:00
Sun
4/21
20:00
Sun
GFS-X/N 63 40 60 36 61
NAM-X/N 61 39 58 36 58
GFS-TMP656360565961575047444452575753474340405754
NAM-TMP635955525657524845424149545651444138395453
GFS-DPT485050504437343333333328252627303030312929
NAM-DPT504948474236323232323231292828303030303031
GFS-CLDOVOVOVOVBKBKBKOVBKBKSCSCBKBKBKBKSCBKBKBKSC
NAM-CLDOVOVOVOVOVOVBKOVOVBKSCSCSCSCBKBKBKOVOVBKFW
GFS-WDR192330333232323229282730293031313133333032
NAM-WDR162229333232333626252931303032343436362930
GFS-WSP110814151313090706070614131307050404030606
NAM-WSP080811121112090504030311131006040403020706
GFS-P06 75 16 0 1 0 0 0 1 5 5 4
NAM-P06 70 5 2 7 10 9 6 8 2017 7
GFS-P12 16 2 1 12 9
NAM-P12 8 10 10 20 17
GFS-Q06 3 0 0 0 0 0 0 0 0 0 0
NAM-Q06 1 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 29/ 5 5/ 0 5/ 0 4/ 3 2/ 2 1/ 6 0/ 2 0/ 0 0/ 0 0/ 0
NAM-T06 31/ 9 2/ 1 1/ 6 3/ 7 2/ 6 1/10 0/ 7 0/ 1 0/ 2 0/ 2
GFS-T12 29/ 5 9/ 4 2/ 7 0/ 4 0/ 1
NAM-T12 31/ 9 3/10 2/10 0/ 9 0/ 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 1 0 0 0 0 0 0 0 0
GFS-POS 0 0 0 0 0 0 0 011121123231314 810252420 0
NAM-POS 0 0 0 0 0 0 0 2 2 8 6121512 51310141119 6
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 7 5 3 4 8 8 8 8 8 8 8 8 7 8 8 8 8 8 8 6 8
NAM-CIG 8 6 3 4 6 8 8 8 7 8 8 8 8 8 8 8 8 8 7 6 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 7 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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