GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 1/19/2020 1200 UTC
KCVG NAM MOS GUIDANCE 1/19/2020 1200 UTC


Date/Time
UTC
1/19
18:00
Sun
1/19
21:00
Sun
1/20
00:00
Mon
1/20
03:00
Mon
1/20
06:00
Mon
1/20
09:00
Mon
1/20
12:00
Mon
1/20
15:00
Mon
1/20
18:00
Mon
1/20
21:00
Mon
1/21
00:00
Tue
1/21
03:00
Tue
1/21
06:00
Tue
1/21
09:00
Tue
1/21
12:00
Tue
1/21
15:00
Tue
1/21
18:00
Tue
1/21
21:00
Tue
1/22
00:00
Wed
1/22
06:00
Wed
1/22
12:00
Wed
Date/Time
Local
1/19
13:00
Sun
1/19
16:00
Sun
1/19
19:00
Sun
1/19
22:00
Sun
1/20
01:00
Mon
1/20
04:00
Mon
1/20
07:00
Mon
1/20
10:00
Mon
1/20
13:00
Mon
1/20
16:00
Mon
1/20
19:00
Mon
1/20
22:00
Mon
1/21
01:00
Tue
1/21
04:00
Tue
1/21
07:00
Tue
1/21
10:00
Tue
1/21
13:00
Tue
1/21
16:00
Tue
1/21
19:00
Tue
1/22
01:00
Wed
1/22
07:00
Wed
GFS-N/X 13 31 15 32 16
NAM-N/X 13 32 14 32 18
GFS-TMP202019181515162227282421191817242931252118
NAM-TMP201916141415162228302419171716232931272319
GFS-DPT 7 7 9 9 7 8101312111010 9 910131312131110
NAM-DPT 5 2 2 2 5 9111310 7 5 6 7 8 9131313131413
GFS-CLDBKSCFWBKOVOVBKSCFWSCBKBKFWCLCLCLCLCLCLCLCL
NAM-CLDBKSCBKOVOVOVOVBKSCSCSCSCFWCLSCBKCLCLCLCLFW
GFS-WDR293030313232333436353501013601040405101415
NAM-WDR293031313132323333343636363636363227211716
GFS-WSP151311100806040606060504040402040403020303
NAM-WSP131311100906050606080506050504050504020202
GFS-P06 0 0 1 1 1 1 1 0 0 0 3
NAM-P06 0 0 0 1 0 0 0 0 0 0 0
GFS-P12 1 1 1 0 3
NAM-P12 0 1 0 0 0
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 0/ 4 0/ 4 0/ 1 0/ 1 0/ 0 0/ 0 0/ 0 0/ 2 0/ 0 0/ 3
NAM-T06 0/ 7 0/ 3 0/ 0 0/ 1 0/ 0 0/ 0 0/ 3 0/ 0 0/ 0 0/ 0
GFS-T12 0/11 0/ 1 0/12 0/ 4 0/11
NAM-T12 0/ 7 0/ 1 0/ 0 0/ 3 0/ 7
GFS-POZ 2 1 3 1 2 1 1 1 2 2 2 2 2 0 1 1 1 0 0 0 6
NAM-POZ 0 2 3 2 2 1 1 1 2 2 2 2 1 1 1 2 2 2 3 3 6
GFS-POS929995999800999998999898999999989993979885
NAM-POS009997989899989997989798989899989896979491
GFS-TYP S S S S S S S S S S S S S S S S S S S S S
NAM-TYP S S S S S S S S S S S S S S S S S S S S S
GFS-SNW 0 0 0
NAM-SNW 0 0 0
GFS-CIG 6 8 8 8 6 6 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
NAM-CIG 6 8 8 6 6 6 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 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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