KD4PYR MOS Compare

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GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 6/10/2026 1200 UTC
KCVG NAM MOS GUIDANCE 6/10/2026 1200 UTC

Date/Time UTC	6/10 18:00 Wed	6/10 21:00 Wed	6/11 00:00 Thu	6/11 03:00 Thu	6/11 06:00 Thu	6/11 09:00 Thu	6/11 12:00 Thu	6/11 15:00 Thu	6/11 18:00 Thu	6/11 21:00 Thu	6/12 00:00 Fri	6/12 03:00 Fri	6/12 06:00 Fri	6/12 09:00 Fri	6/12 12:00 Fri	6/12 15:00 Fri	6/12 18:00 Fri	6/12 21:00 Fri	6/13 00:00 Sat	6/13 06:00 Sat	6/13 12:00 Sat
Date/Time Local	6/10 14:00 Wed	6/10 17:00 Wed	6/10 20:00 Wed	6/10 23:00 Wed	6/11 02:00 Thu	6/11 05:00 Thu	6/11 08:00 Thu	6/11 11:00 Thu	6/11 14:00 Thu	6/11 17:00 Thu	6/11 20:00 Thu	6/11 23:00 Thu	6/12 02:00 Fri	6/12 05:00 Fri	6/12 08:00 Fri	6/12 11:00 Fri	6/12 14:00 Fri	6/12 17:00 Fri	6/12 20:00 Fri	6/13 02:00 Sat	6/13 08:00 Sat
GFS-N/X							72				91				69				81		62
NAM-N/X							74				90				71				82		61
GFS-TMP	90	91	87	79	75	74	74	82	88	88	85	78	75	72	72	73	77	81	77	67	67
NAM-TMP	87	88	84	79	77	76	77	83	87	88	83	78	75	73	73	75	79	79	74	66	65
GFS-DPT	71	70	69	69	69	68	69	70	70	70	70	70	69	68	66	61	57	55	55	58	60
NAM-DPT	74	73	73	70	70	70	71	72	72	71	71	71	70	69	69	67	64	62	61	57	58
GFS-CLD	BK	BK	SC	FW	BK	OV	OV	BK	BK	BK	BK	SC	BK	OV	OV	BK	SC	SC	FW	FW	FW
NAM-CLD	OV	BK	SC	SC	BK	OV	BK	BK	BK	BK	SC	FW	BK	BK	OV	OV	BK	SC	FW	CL	FW
GFS-WDR	23	22	23	20	20	21	19	22	22	21	21	20	21	24	29	31	30	29	29	33	15
NAM-WDR	23	23	23	20	21	22	21	23	23	21	19	19	22	24	25	29	29	30	32	30	09
GFS-WSP	12	12	10	08	07	05	07	11	13	12	10	11	11	11	11	11	08	09	06	03	03
NAM-WSP	10	11	06	06	07	07	07	09	09	09	07	08	11	06	08	09	10	11	06	02	01
GFS-P06			4		0		51		26		30		9		48		9		1	3	4
NAM-P06			1		2		7		8		2		3		11		16		10	5	7
GFS-P12							51				37				50				13		4
NAM-P12							7				8				20				17		10
GFS-Q06			0		0		2		0		0		0		1		0		0	0	0
NAM-Q06			0		0		0		0		0		0		0		0		0	0	0
GFS-Q12							1				0				1				0		0
NAM-Q12							0				0				0				0		0
GFS-T06			22/21		20/20		47/ 6		24/ 7		48/20		21/17		41/ 6		6/ 5		0/ 7		0/ 2
NAM-T06			17/18		15/18		11/ 8		12/13		15/24		14/21		10/ 9		10/ 8		11/ 9		0/ 1
GFS-T12					28/26				58/10				50/28				41/ 9			0/ 9
NAM-T12					25/26				16/13				24/31				14/11			11/ 9
GFS-CIG	6	8	8	8	8	8	8	8	8	8	8	8	8	5	6	8	8	8	8	8	8
NAM-CIG	6	8	8	8	8	8	8	8	8	8	8	8	8	8	5	5	6	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	7	7	7	7	7	7	7	7	7	7	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	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

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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