GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 9/23/2018 0600 UTC
KCVG NAM MOS GUIDANCE 9/23/2018 0000 UTC


Date/Time
UTC
9/23
06:00
Sun
9/23
09:00
Sun
9/23
12:00
Sun
9/23
15:00
Sun
9/23
18:00
Sun
9/23
21:00
Sun
9/24
00:00
Mon
9/24
03:00
Mon
9/24
06:00
Mon
9/24
09:00
Mon
9/24
12:00
Mon
9/24
15:00
Mon
9/24
18:00
Mon
9/24
21:00
Mon
9/25
00:00
Tue
9/25
03:00
Tue
9/25
06:00
Tue
9/25
09:00
Tue
9/25
12:00
Tue
9/25
15:00
Tue
9/25
18:00
Tue
9/26
00:00
Wed
9/26
06:00
Wed
Date/Time
Local
9/23
02:00
Sun
9/23
05:00
Sun
9/23
08:00
Sun
9/23
11:00
Sun
9/23
14:00
Sun
9/23
17:00
Sun
9/23
20:00
Sun
9/23
23:00
Sun
9/24
02:00
Mon
9/24
05:00
Mon
9/24
08:00
Mon
9/24
11:00
Mon
9/24
14:00
Mon
9/24
17:00
Mon
9/24
20:00
Mon
9/24
23:00
Mon
9/25
02:00
Tue
9/25
05:00
Tue
9/25
08:00
Tue
9/25
11:00
Tue
9/25
14:00
Tue
9/25
20:00
Tue
9/26
02:00
Wed
GFS-X/N---- 69 64 75 68 80
NAM-X/N 74 61 73 64-- 76--
GFS-TMP----566065686564646566677272676868697072767271
NAM-TMP58575663697268646363626569716867666664--7271--
GFS-DPT----545556585960616364656667666566676769706969
NAM-DPT55545355565758585960596366676766666564--6869--
GFS-CLD----OVOVOVOVOVOVOVOVOVOVOVOVOVOVOVOVOVOVOVBKOV
NAM-CLDOVOVOVOVOVBKOVOVOVOVOVOVOVOVOVOVOVOVOV--OVOV--
GFS-WDR----060607070909091012141413141416171820201820
NAM-WDR06070606070808090910131314131514171819--1919--
GFS-WSP----080808070407070607080909101110091010080509
NAM-WSP08070707080807090808100808080911121111--0908--
GFS-P06---- 43 33 50 91 70 36 55 53 385364
NAM-P06 20 16 8 24 75 78 77 72 68--6965--
GFS-P12---- 43 91 76 60 68
NAM-P12 24 75 93 82-- 85--
GFS-Q06---- 1 0 1 3 2 0 1 2 1 3 4
NAM-Q06 0 0 0 0 3 4 4 3 3-- 5 5--
GFS-Q12---- 0 3 3 2 3
NAM-Q12 0 2 5 4-- 5--
GFS-T06---- 6/ 0 2/ 0 10/ 0 24/ 0 13/ 0 7/ 1 22/ 2 20/ 0 11/ 3 24/10
NAM-T06 3/ 0 1/ 0 1/ 0 1/ 0 1/ 0 12/ 1 23/ 4 25/ 5 20/ 0-- 26/10--
GFS-T12---- 10/ 0 29/ 1 22/ 3 25/ 5 42/10
NAM-T12 3/ 0 1/ 0 15/ 1 31/ 5 --26/ 3 --
GFS-POZ---- 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 0 0 1 1
NAM-POZ 1 1 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0-- 0 0--
GFS-POS---- 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
NAM-POS 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-- 0 0--
GFS-TYP---- R R R R R R R R R R R R R R R R R R R R R
NAM-TYP R R R R R R R R R R R R R R R R R R R-- R R--
GFS-SNW---- 0 0
NAM-SNW 0 0-- --
GFS-CIG---- 6 5 6 4 5 4 2 3 3 3 3 6 7 4 4 4 4 3 3 7 5
NAM-CIG 7 7 7 8 1 8 6 4 2 3 3 4 1 1 1 2 3 3 4-- 1 1--
GFS-VIS---- 7 7 7 6 7 6 5 5 5 3 3 5 6 5 5 7 7 4 5 7 7
NAM-VIS 7 5 5 7 7 7 7 7 5 5 5 3 4 5 5 4 5 6 7-- 4 3--
GFS-OBV---- N N N N NBRBRBRBRBRBRHZ NBRBR N NBRBR N N
NAM-OBV NBRBR N N N N NBRBRBRBRBRHZBRBRBR N N--BRBR--

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.


2,389 Page Views