GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 3/22/2019 1200 UTC
KCVG NAM MOS GUIDANCE 3/22/2019 1200 UTC


Date/Time
UTC
3/22
18:00
Fri
3/22
21:00
Fri
3/23
00:00
Sat
3/23
03:00
Sat
3/23
06:00
Sat
3/23
09:00
Sat
3/23
12:00
Sat
3/23
15:00
Sat
3/23
18:00
Sat
3/23
21:00
Sat
3/24
00:00
Sun
3/24
03:00
Sun
3/24
06:00
Sun
3/24
09:00
Sun
3/24
12:00
Sun
3/24
15:00
Sun
3/24
18:00
Sun
3/24
21:00
Sun
3/25
00:00
Mon
3/25
06:00
Mon
3/25
12:00
Mon
Date/Time
Local
3/22
14:00
Fri
3/22
17:00
Fri
3/22
20:00
Fri
3/22
23:00
Fri
3/23
02:00
Sat
3/23
05:00
Sat
3/23
08:00
Sat
3/23
11:00
Sat
3/23
14:00
Sat
3/23
17:00
Sat
3/23
20:00
Sat
3/23
23:00
Sat
3/24
02:00
Sun
3/24
05:00
Sun
3/24
08:00
Sun
3/24
11:00
Sun
3/24
14:00
Sun
3/24
17:00
Sun
3/24
20:00
Sun
3/25
02:00
Mon
3/25
08:00
Mon
GFS-N/X 27 54 30 56 42
NAM-N/X 27 52 30 59 39
GFS-TMP474741373430294150534538353334465356544744
NAM-TMP474741343230293748524538353334475557564639
GFS-DPT312826262422202321191919202123293539434340
NAM-DPT302725232322222323212121212223303539434135
GFS-CLDBKSCCLCLCLCLCLCLCLCLCLCLSCOVOVOVOVOVOVOVOV
NAM-CLDOVSCSCCLCLCLCLCLCLCLCLCLBKOVOVOVOVOVOVOVOV
GFS-WDR323231323334323230261615131414171817181701
NAM-WDR333232323333342727201613141415181919192301
GFS-WSP201711100705020403030102030405080708060615
NAM-WSP181711090705030302020203030305070911090614
GFS-P06 1 2 1 0 0 0 3 57 916982
NAM-P06 0 0 0 0 0 1 7 20 617948
GFS-P12 2 0 3 91 90
NAM-P12 0 0 7 61 93
GFS-Q06 0 0 0 0 0 0 0 1 3 2 3
NAM-Q06 0 0 0 0 0 0 0 0 1 2 1
GFS-Q12 0 0 0 3 4
NAM-Q12 0 0 0 1 3
GFS-T06 0/ 8 1/ 0 0/ 0 0/ 6 2/ 0 0/ 0 1/ 0 5/ 4 1/ 4 13/ 0
NAM-T06 1/11 0/ 6 0/ 0 0/ 0 0/ 0 0/ 0 0/ 0 1/ 4 3/15 3/ 0
GFS-T12 1/ 8 0/ 6 2/ 0 8/ 4 10/10
NAM-T12 1/11 0/ 4 0/ 0 1/ 4 23/15
GFS-POZ 0 0 0 0 0 0 0 1 0 0 0 5 1 0 0 0 0 0 0 0 2
NAM-POZ 0 0 0 0 0 0 2 0 0 0 0 1 0 0 0 0 0 0 0 0 2
GFS-POS222220718695854315 0 5181421 0 1 2 1 0 0 6
NAM-POS222251849598887711 0 111 1 2 2 2 2 1 2 311
GFS-TYP R R R S S S S S R R R R R R R R R R R R R
NAM-TYP R R S S S S S S 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 6 8 8 8 8 8 8 8 8 8 8 8 8 8 8 7 6 4 4 3 3
NAM-CIG 6 8 8 8 8 8 8 8 8 8 8 8 8 8 7 7 7 6 5 3 3
GFS-VIS 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 4 5 4 5
NAM-VIS 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 5 4 5
GFS-OBV N N N N N N N N N N N N N N N N NBRBRBR N
NAM-OBV N N N N N N N N N N N N N N N N N NHZBR 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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