GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 6/29/2017 0000 UTC
KCVG NAM MOS GUIDANCE 6/29/2017 0000 UTC


Date/Time
UTC
6/29
06:00
Thu
6/29
09:00
Thu
6/29
12:00
Thu
6/29
15:00
Thu
6/29
18:00
Thu
6/29
21:00
Thu
6/30
00:00
Fri
6/30
03:00
Fri
6/30
06:00
Fri
6/30
09:00
Fri
6/30
12:00
Fri
6/30
15:00
Fri
6/30
18:00
Fri
6/30
21:00
Fri
7/1
00:00
Sat
7/1
03:00
Sat
7/1
06:00
Sat
7/1
09:00
Sat
7/1
12:00
Sat
7/1
18:00
Sat
7/2
00:00
Sun
Date/Time
Local
6/29
02:00
Thu
6/29
05:00
Thu
6/29
08:00
Thu
6/29
11:00
Thu
6/29
14:00
Thu
6/29
17:00
Thu
6/29
20:00
Thu
6/29
23:00
Thu
6/30
02:00
Fri
6/30
05:00
Fri
6/30
08:00
Fri
6/30
11:00
Fri
6/30
14:00
Fri
6/30
17:00
Fri
6/30
20:00
Fri
6/30
23:00
Fri
7/1
02:00
Sat
7/1
05:00
Sat
7/1
08:00
Sat
7/1
14:00
Sat
7/1
20:00
Sat
GFS-X/N 88 71 84 70 84
NAM-X/N 87 70 84 70 83
GFS-TMP686771798587847774737377808178747372738078
NAM-TMP666570788385817674727275808179757372738076
GFS-DPT596062646565656666666769696970696969696867
NAM-DPT545660656767686767666668707071706968696968
GFS-CLDCLOVBKBKBKBKBKSCOVOVOVOVOVBKOVOVOVOVOVBKBK
NAM-CLDBKFWSCBKBKBKSCBKBKBKOVOVOVBKBKOVOVOVOVOVBK
GFS-WDR181919222220201920191820201920202021242526
NAM-WDR181919222221192020202021212018192121232427
GFS-WSP070809141310071010080910111006060707060706
NAM-WSP060710121311070810091010100806070708081207
GFS-P06 2 0 1 0 25 28 36 22 424933
NAM-P06 4 4 2 3 5 9 16 52 393040
GFS-P12 7 25 53 54 57
NAM-P12 4 19 19 64 56
GFS-Q06 0 0 0 0 0 0 0 0 1 2 0
NAM-Q06 0 0 0 0 0 0 0 3 1 0 2
GFS-Q12 0 0 1 2 2
NAM-Q12 0 0 0 5 2
GFS-T06 0/ 0 6/ 6 19/25 15/18 13/ 3 25/ 7 49/28 29/18 35/ 6 40/22
NAM-T06 0/ 4 4/ 7 14/22 16/18 14/ 4 14/ 9 30/26 48/27 41/ 7 42/28
GFS-T12 6/ 8 25/25 34/ 8 63/30 58/ 9
NAM-T12 4/ 7 23/25 21/ 9 67/36 48/10
GFS-CIG 8 8 8 6 8 8 8 8 8 8 5 6 6 6 8 8 7 4 3 6 8
NAM-CIG 8 8 8 8 7 8 8 8 8 8 4 3 5 6 8 7 2 2 3 6 8
GFS-VIS 7 7 7 7 7 7 7 7 7 7 5 7 7 7 7 7 6 6 5 7 7
NAM-VIS 7 7 7 7 7 7 7 7 7 7 7 5 6 7 7 7 7 5 5 6 7
GFS-OBV N N N N N N N N N NBR N N N N NBRBRBR N N
NAM-OBV N N N N N N N N N N NBRHZ N N N NBRBRHZ 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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