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GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 6/23/2017 1800 UTC
KCVG NAM MOS GUIDANCE 6/23/2017 1200 UTC


Date/Time
UTC
6/23
18:00
Fri
6/23
21:00
Fri
6/24
00:00
Sat
6/24
03:00
Sat
6/24
06:00
Sat
6/24
09:00
Sat
6/24
12:00
Sat
6/24
15:00
Sat
6/24
18:00
Sat
6/24
21:00
Sat
6/25
00:00
Sun
6/25
03:00
Sun
6/25
06:00
Sun
6/25
09:00
Sun
6/25
12:00
Sun
6/25
15:00
Sun
6/25
18:00
Sun
6/25
21:00
Sun
6/26
00:00
Mon
6/26
03:00
Mon
6/26
06:00
Mon
6/26
12:00
Mon
6/26
18:00
Mon
Date/Time
Local
6/23
14:00
Fri
6/23
17:00
Fri
6/23
20:00
Fri
6/23
23:00
Fri
6/24
02:00
Sat
6/24
05:00
Sat
6/24
08:00
Sat
6/24
11:00
Sat
6/24
14:00
Sat
6/24
17:00
Sat
6/24
20:00
Sat
6/24
23:00
Sat
6/25
02:00
Sun
6/25
05:00
Sun
6/25
08:00
Sun
6/25
11:00
Sun
6/25
14:00
Sun
6/25
17:00
Sun
6/25
20:00
Sun
6/25
23:00
Sun
6/26
02:00
Mon
6/26
08:00
Mon
6/26
14:00
Mon
GFS-N/X---- 61 78 54 75 53
NAM-N/X 62 80 56 76-- 52--
GFS-TMP----706866636471757674656058586972737162585770
NAM-TMP76747271676465737677746662586068737469--5856--
GFS-DPT----676563616059575655555452525350494950495048
NAM-DPT73727168666362595755545252505150484646--4950--
GFS-CLD----OVOVBKCLSCSCBKBKFWSCCLCLCLSCBKSCFWFWBKCLBK
NAM-CLDOVOVOVOVFWFWBKBKBKSCSCFWFWSCCLSCBKBKBK--SCSC--
GFS-WDR----323029262727272829292825222728282826262728
NAM-WDR21353130292729282829292930292426272728--2924--
GFS-WSP----070604030608121311060403061113130905050716
NAM-WSP10070606040304071110080404040308101209--0504--
GFS-P06---- 21 1 0 7 4 3 6 5 4 6 9
NAM-P06 59 16 4 5 3 2 11 10 10-- 2 5--
GFS-P12---- 24 12 5 14 11
NAM-P12 16 5 11 10-- 11--
GFS-Q06---- 0 0 0 0 0 0 0 0 0 0 0
NAM-Q06 4 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---- 10/10 0/ 1 0/ 4 0/15 2/14 0/ 2 3/ 7 1/15 2/ 8 4/ 5
NAM-T06 67/21 10/12 0/ 5 1/ 5 1/10 0/12 0/ 5 2/ 9 9/17-- 1/ 5--
GFS-T12---- 0/ 8 2/21 4/10 2/15 4/ 9
NAM-T12 67/21 1/ 9 1/16 2/ 9 -- 9/17 --
GFS-CIG---- 4 5 8 8 8 8 8 7 8 8 8 8 8 8 6 7 8 8 8 8 8
NAM-CIG 3 2 3 3 8 8 8 6 8 6 8 8 8 8 8 8 7 6 7-- 8 8--
GFS-VIS---- 2 5 7 5 2 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
NAM-VIS 4 2 5 5 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7-- 7 7--
GFS-OBV----FGBR NBRBR N N N N N N N N N N N N N N N N
NAM-OBVBRFGBRBR 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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