KD4PYR MOS Compare

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GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 10/16/2024 0000 UTC
KCVG NAM MOS GUIDANCE 10/16/2024 0000 UTC

Date/Time UTC	10/16 06:00 Wed	10/16 09:00 Wed	10/16 12:00 Wed	10/16 15:00 Wed	10/16 18:00 Wed	10/16 21:00 Wed	10/17 00:00 Thu	10/17 03:00 Thu	10/17 06:00 Thu	10/17 09:00 Thu	10/17 12:00 Thu	10/17 15:00 Thu	10/17 18:00 Thu	10/17 21:00 Thu	10/18 00:00 Fri	10/18 03:00 Fri	10/18 06:00 Fri	10/18 09:00 Fri	10/18 12:00 Fri	10/18 18:00 Fri	10/19 00:00 Sat
Date/Time Local	10/16 02:00 Wed	10/16 05:00 Wed	10/16 08:00 Wed	10/16 11:00 Wed	10/16 14:00 Wed	10/16 17:00 Wed	10/16 20:00 Wed	10/16 23:00 Wed	10/17 02:00 Thu	10/17 05:00 Thu	10/17 08:00 Thu	10/17 11:00 Thu	10/17 14:00 Thu	10/17 17:00 Thu	10/17 20:00 Thu	10/17 23:00 Thu	10/18 02:00 Fri	10/18 05:00 Fri	10/18 08:00 Fri	10/18 14:00 Fri	10/18 20:00 Fri
GFS-X/N							57				39				63				41		69
NAM-X/N							52				33				56				38		65
GFS-TMP	44	41	39	48	54	55	50	46	43	41	41	52	60	62	55	49	46	43	43	65	59
NAM-TMP	39	38	37	44	49	51	46	41	38	36	34	44	53	56	50	46	43	41	40	61	57
GFS-DPT	35	34	32	34	33	32	34	36	36	35	36	39	36	34	35	36	35	35	36	37	37
NAM-DPT	31	31	32	35	35	34	34	34	33	32	31	36	37	36	36	36	36	36	35	38	38
GFS-CLD	CL	CL	CL	SC	BK	BK	CL	CL	CL	CL	CL	CL	CL	FW	CL	CL	CL	CL	CL	CL	CL
NAM-CLD	FW	CL	FW	SC	BK	BK	BK	CL	CL	SC	SC	FW	CL	CL	CL	CL	CL	CL	CL	CL	CL
GFS-WDR	32	32	32	34	34	33	33	34	33	33	32	26	24	20	15	14	13	13	12	11	10
NAM-WDR	32	31	31	34	33	33	32	31	32	29	32	32	29	29	12	11	10	12	10	13	07
GFS-WSP	07	07	06	11	12	11	07	05	03	02	02	03	03	03	02	03	03	03	03	06	05
NAM-WSP	05	05	04	07	11	09	03	03	01	01	01	02	03	03	02	02	01	01	03	03	04
GFS-P06			0		1		0		1		0		0		1		2		3	4	5
NAM-P06			1		0		0		0		0		0		0		0		0	3	3
GFS-P12							1				1				1				3		5
NAM-P12							1				0				0				0		3
GFS-Q06			0		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			0/ 0		0/ 3		0/ 0		0/ 1		0/ 1		0/ 5		0/ 0		0/ 4		0/ 1		0/ 0
NAM-T06			0/ 1		0/ 3		0/ 0		0/ 0		0/ 4		0/ 1		0/ 0		1/ 3		1/ 3		0/ 0
GFS-T12					0/ 5				0/ 3				1/ 6				0/ 6			0/ 7
NAM-T12					0/ 3				0/ 0				0/ 4				1/ 3			1/ 3
GFS-POZ	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0
NAM-POZ	0	4	1	0	0	0	0	0	1	5	7	5	0	0	0	0	0	0	0	0	0
GFS-POS	52	78	69	24	1	0	12	0	12	10	0	0	0	0	0	0	0	0	0	0	0
NAM-POS	44	59	69	17	11	4	1	0	8	35	25	6	0	0	0	0	0	1	3	0	0
GFS-TYP	S	S	S	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R
NAM-TYP	R	S	S	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	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8
NAM-CIG	8	8	8	8	8	6	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8
GFS-VIS	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
NAM-VIS	7	7	7	7	7	7	7	7	7	2	1	1	7	7	7	7	7	7	6	7	7
GFS-OBV	N	N	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	FG	FG	FG	N	N	N	N	N	N	BR	N	N

Entries of "--" indicate that the current model run does not include forecast data for the time period.

Descriptions of MOS Elements

DT = The day of the month, denoted by the standard three or four letter abbreviation
HR = Hour of the day in UTC time. This is the hour at which the forecast is valid, or if the forecast is valid for a period, the end of the forecast period.
N/X = nighttime minimum/daytime maximum surface temperatures.
TMP = surface temperature valid at that hour.
DPT = surface dewpoint valid at that hour.
CLD = forecast categories of total sky cover valid at that hour.
WDR = forecasts of the 10-meter wind direction at the hour, given in tens of degrees.
WSP = forecasts of the 10-meter wind speed at the hour, given in knots.
P06 = probability of precipitation (PoP) during a 6-h period ending at that time.
P12 = PoP during a 12-h period ending at that time.
Q06 = quantitative precipitation forecast (QPF) category for liquid equivalent precipitation amount during a 6-h period ending at that time.
Q12 = QPF category for liquid equivalent precipitation amount during a 12-h period ending at the indicated time.
T06 = probability of thunderstorms/conditional probability of severe thunderstorms during the 6-hr period ending at the indicated time.
T12 = probability of thunderstorms/conditional probability of severe thunderstorms during the 12-hr period ending at the indicated time.
SNW = snow fall categorical forecasts during a 24-h period ending at the indicated time.
POZ = conditional probability of freezing pcp occurring at the hour.
POS = conditional probability of snow occurring at the hour.
TYP = conditional precipitation type at the hour.
CIG = ceiling height categorical forecasts at the hour.
VIS = visibility categorical forecasts at the hour.
OBV = obstruction to vision categorical forecasts at the hour.

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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