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GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 11/11/2019 1800 UTC
KCVG NAM MOS GUIDANCE 11/11/2019 1200 UTC


Date/Time
UTC
11/11
18:00
Mon
11/11
21:00
Mon
11/12
00:00
Tue
11/12
03:00
Tue
11/12
06:00
Tue
11/12
09:00
Tue
11/12
12:00
Tue
11/12
15:00
Tue
11/12
18:00
Tue
11/12
21:00
Tue
11/13
00:00
Wed
11/13
03:00
Wed
11/13
06:00
Wed
11/13
09:00
Wed
11/13
12:00
Wed
11/13
15:00
Wed
11/13
18:00
Wed
11/13
21:00
Wed
11/14
00:00
Thu
11/14
03:00
Thu
11/14
06:00
Thu
11/14
12:00
Thu
11/14
18:00
Thu
Date/Time
Local
11/11
13:00
Mon
11/11
16:00
Mon
11/11
19:00
Mon
11/11
22:00
Mon
11/12
01:00
Tue
11/12
04:00
Tue
11/12
07:00
Tue
11/12
10:00
Tue
11/12
13:00
Tue
11/12
16:00
Tue
11/12
19:00
Tue
11/12
22:00
Tue
11/13
01:00
Wed
11/13
04:00
Wed
11/13
07:00
Wed
11/13
10:00
Wed
11/13
13:00
Wed
11/13
16:00
Wed
11/13
19:00
Wed
11/13
22:00
Wed
11/14
01:00
Thu
11/14
07:00
Thu
11/14
13:00
Thu
GFS-N/X---- 21 23 12 36 27
NAM-N/X 22 27 13 38-- 26--
GFS-TMP----373229252321222118171514142232363232313139
NAM-TMP42393432292623232525211816141426343832--3029--
GFS-DPT----332622191614131212131211101315161817161825
NAM-DPT42383125221916151210 91111101012121212--1518--
GFS-CLD----OVOVOVOVOVOVOVOVCLCLCLFWSCCLCLFWFWCLCLBKBK
NAM-CLDOVOVOVOVOVOVOVOVBKBKSCCLCLFWSCFWSCFWFW--BKOV--
GFS-WDR----333232323132333232323408121416151516202022
NAM-WDR25333432323232323232333234101416161616--1922--
GFS-WSP----192018161414141106040202040807070707060708
NAM-WSP08121515161514131412080402010306080909--0807--
GFS-P06---- 90 21 7 0 0 0 1 2 4 4 8
NAM-P06 91 94 21 4 0 0 0 1 6-- 811--
GFS-P12---- 90 15 0 2 4
NAM-P12 94 4 0 6-- 18--
GFS-Q06---- 2 0 0 0 0 0 0 0 0 0 0
NAM-Q06 2 2 0 0 0 0 0 0 0-- 0 0--
GFS-Q12---- 2 0 0 0 0
NAM-Q12 2 0 0 0-- 0--
GFS-T06---- 0/ 2 0/ 3 1/ 6 1/ 7 0/ 5 0/ 1 0/ 5 0/10 0/ 9 0/ 1
NAM-T06 0/15 0/ 8 0/ 3 0/ 4 0/ 1 0/ 7 0/ 5 0/ 1 0/14-- 0/ 1--
GFS-T12---- 1/ 9 1/15 0/10 0/21 0/ 5
NAM-T12 0/15 0/ 4 0/ 7 0/ 5 -- 1/21 --
GFS-POZ---- 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 6 7 2 0
NAM-POZ 4 7 9 3 1 0 0 0 1 0 0 0 0 0 0 0 0 1 1-- 3 0--
GFS-POS----268491959900989897979797999895918281749468
NAM-POS 0266688999997979697969797969796969493--7585--
GFS-TYP---- R S S S S S S S S S S S S S S S S S S S S
NAM-TYP R R S S S S S S S S S S S S S S S S S-- S S--
GFS-SNW---- 0 0
NAM-SNW 1 0 -- 0--
GFS-CIG---- 2 3 3 3 4 4 5 6 8 8 8 8 8 8 8 8 8 8 8 8 8
NAM-CIG 6 4 3 3 4 5 5 5 6 6 8 8 8 8 8 8 8 8 8-- 8 7--
GFS-VIS---- 4 4 5 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
NAM-VIS 7 5 5 4 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7-- 7 7--
GFS-OBV----BRBRBR N N N N N N N N N N N N N N N N N N
NAM-OBV NBRBR NBL 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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