GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 2/22/2020 1200 UTC
KCVG NAM MOS GUIDANCE 2/22/2020 1200 UTC


Date/Time
UTC
2/22
18:00
Sat
2/22
21:00
Sat
2/23
00:00
Sun
2/23
03:00
Sun
2/23
06:00
Sun
2/23
09:00
Sun
2/23
12:00
Sun
2/23
15:00
Sun
2/23
18:00
Sun
2/23
21:00
Sun
2/24
00:00
Mon
2/24
03:00
Mon
2/24
06:00
Mon
2/24
09:00
Mon
2/24
12:00
Mon
2/24
15:00
Mon
2/24
18:00
Mon
2/24
21:00
Mon
2/25
00:00
Tue
2/25
06:00
Tue
2/25
12:00
Tue
Date/Time
Local
2/22
13:00
Sat
2/22
16:00
Sat
2/22
19:00
Sat
2/22
22:00
Sat
2/23
01:00
Sun
2/23
04:00
Sun
2/23
07:00
Sun
2/23
10:00
Sun
2/23
13:00
Sun
2/23
16:00
Sun
2/23
19:00
Sun
2/23
22:00
Sun
2/24
01:00
Mon
2/24
04:00
Mon
2/24
07:00
Mon
2/24
10:00
Mon
2/24
13:00
Mon
2/24
16:00
Mon
2/24
19:00
Mon
2/25
01:00
Tue
2/25
07:00
Tue
GFS-N/X 29 53 40 51 45
NAM-N/X 29 49 37 47 41
GFS-TMP444740363433324149524945444343444748464747
NAM-TMP454941353332333846484441414039414444434444
GFS-DPT151415171919212526282930313335374141414345
NAM-DPT121113151517202425272932333435363839393941
GFS-CLDCLCLCLCLCLCLFWFWSCBKBKOVOVOVOVOVOVOVOVOVOV
NAM-CLDCLCLCLFWCLFWSCCLFWBKOVBKOVOVOVOVOVOVOVOVOV
GFS-WDR212120202019182021212020222018171614131417
NAM-WDR212120202019192021212021201918171712101316
GFS-WSP081005050505060911110606050404080809080708
NAM-WSP080904040504050709090606050504060607120705
GFS-P06 0 0 0 0 0 2 32 66 947278
NAM-P06 0 0 1 1 2 2 23 75 857958
GFS-P12 0 0 32 94 93
NAM-P12 1 2 23 91 00
GFS-Q06 0 0 0 0 0 0 0 1 2 2 2
NAM-Q06 0 0 0 0 0 0 0 1 2 2 1
GFS-Q12 0 0 0 3 3
NAM-Q12 0 0 0 2 3
GFS-T06 0/ 7 0/ 0 0/ 8 0/ 4 0/ 6 0/ 2 0/ 0 1/ 2 2/ 2 3/ 7
NAM-T06 0/ 0 0/ 9 0/ 8 0/ 1 0/ 5 0/ 1 1/ 0 1/ 1 2/10 2/ 4
GFS-T12 0/13 0/10 1/16 1/10 3/11
NAM-T12 0/ 9 0/ 8 0/ 5 2/ 1 2/10
GFS-POZ 0 2 417 6 9 8 5 1 1 1 0 1 0 1 0 0 0 1 1 1
NAM-POZ 0 1 21111 512 1 1 2 2 4 1 2 0 0 0 0 1 1 0
GFS-POS5418263748505314 8 1 1 1 1 2 0 2 4 2 1 1 2
NAM-POS33553847466745 2 1 0 0 0 1 2 4 211 8 3 4 4
GFS-TYP S R R S S S S R R R R R R R R R R R R R R
NAM-TYP R S R S S S S R R R R R R R R R R R R R R
GFS-SNW 0 0 0
NAM-SNW 0 0 0
GFS-CIG 8 8 8 8 8 8 8 8 8 8 8 7 6 3 2 2 2 2 2 3 3
NAM-CIG 8 8 8 8 8 8 8 8 8 8 8 8 7 5 3 2 3 3 2 3 3
GFS-VIS 7 7 7 7 7 7 7 7 7 7 7 7 7 3 3 2 2 2 2 3 4
NAM-VIS 7 7 7 7 7 7 7 7 7 7 7 7 7 2 4 3 3 5 4 4 3
GFS-OBV N N N N N N N N N N N N NBRBRBRBRBRBRBRBR
NAM-OBV N N N N N N N N N N N N NFGBRBRBRBRBRBRBR

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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