GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 1/28/2022 1200 UTC
KCVG NAM MOS GUIDANCE 1/28/2022 1200 UTC


Date/Time
UTC
1/28
18:00
Fri
1/28
21:00
Fri
1/29
00:00
Sat
1/29
03:00
Sat
1/29
06:00
Sat
1/29
09:00
Sat
1/29
12:00
Sat
1/29
15:00
Sat
1/29
18:00
Sat
1/29
21:00
Sat
1/30
00:00
Sun
1/30
03:00
Sun
1/30
06:00
Sun
1/30
09:00
Sun
1/30
12:00
Sun
1/30
15:00
Sun
1/30
18:00
Sun
1/30
21:00
Sun
1/31
00:00
Mon
1/31
06:00
Mon
1/31
12:00
Mon
Date/Time
Local
1/28
13:00
Fri
1/28
16:00
Fri
1/28
19:00
Fri
1/28
22:00
Fri
1/29
01:00
Sat
1/29
04:00
Sat
1/29
07:00
Sat
1/29
10:00
Sat
1/29
13:00
Sat
1/29
16:00
Sat
1/29
19:00
Sat
1/29
22:00
Sat
1/30
01:00
Sun
1/30
04:00
Sun
1/30
07:00
Sun
1/30
10:00
Sun
1/30
13:00
Sun
1/30
16:00
Sun
1/30
19:00
Sun
1/31
01:00
Mon
1/31
07:00
Mon
GFS-N/X 10 25 19 36 22
NAM-N/X 11 29 17 38 22
GFS-TMP292723191513121621242120212122283435312624
NAM-TMP302823191714121825282421202020293536322623
GFS-DPT22181510 6 4 3 6 7 7 8 9111214171920212020
NAM-DPT21171310 8 7 5 6 5 4 5 8 81011151616171818
GFS-CLDOVOVOVOVBKFWSCCLCLFWSCSCBKOVBKSCBKBKFWOVOV
NAM-CLDOVOVBKBKSCBKSCFWCLCLSCSCOVOVBKBKBKCLCLSCSC
GFS-WDR363636353534333327251918171717212629303123
NAM-WDR010136363635333228262218191716182730302420
GFS-WSP101217131108050405060404060808071008060302
NAM-WSP091213131108060605060304050606050706030303
GFS-P06 48 7 1 0 0 0 1 2 0 0 0
NAM-P06 11 1 0 0 0 0 1 2 0 1 3
GFS-P12 7 0 5 2 0
NAM-P12 1 0 1 2 3
GFS-Q06 1 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 2/ 0 0/ 1 0/ 2 0/ 7 0/ 0 0/ 3 0/ 0 0/ 0 0/ 2 0/ 8
NAM-T06 1/ 1 0/ 4 0/ 4 0/ 4 0/ 1 0/ 2 1/ 3 0/ 2 0/ 7 0/ 7
GFS-T12 2/ 9 0/ 7 0/14 1/ 5 1/13
NAM-T12 1/ 9 0/ 4 0/ 2 1/ 3 0/ 9
GFS-POZ 3 1 0 3 2 1 1 1 3 2 3 0 2 1 1 1 3 1 3 1 1
NAM-POZ 0 3 4 2 3 3 1 1 3 3 2 1 1 1 1 2 2 3 3 3 3
GFS-POS979900979899999997989899989999999088899797
NAM-POS009796989797999997989798989899989896979497
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 1 0 0
NAM-SNW 0 0 0
GFS-CIG 5 5 6 6 8 8 8 8 8 8 8 8 8 8 8 8 6 6 8 8 7
NAM-CIG 5 6 8 6 6 8 8 8 8 8 8 8 7 7 8 7 7 8 8 8 8
GFS-VIS 4 5 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
NAM-VIS 5 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
GFS-OBVBRBR 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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