KD4PYR MOS Compare

GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 6/24/2019 0000 UTC
KCVG NAM MOS GUIDANCE 6/24/2019 0000 UTC

Date/Time UTC	6/24 06:00 Mon	6/24 09:00 Mon	6/24 12:00 Mon	6/24 15:00 Mon	6/24 18:00 Mon	6/24 21:00 Mon	6/25 00:00 Tue	6/25 03:00 Tue	6/25 06:00 Tue	6/25 09:00 Tue	6/25 12:00 Tue	6/25 15:00 Tue	6/25 18:00 Tue	6/25 21:00 Tue	6/26 00:00 Wed	6/26 03:00 Wed	6/26 06:00 Wed	6/26 09:00 Wed	6/26 12:00 Wed	6/26 18:00 Wed	6/27 00:00 Thu
Date/Time Local	6/24 02:00 Mon	6/24 05:00 Mon	6/24 08:00 Mon	6/24 11:00 Mon	6/24 14:00 Mon	6/24 17:00 Mon	6/24 20:00 Mon	6/24 23:00 Mon	6/25 02:00 Tue	6/25 05:00 Tue	6/25 08:00 Tue	6/25 11:00 Tue	6/25 14:00 Tue	6/25 17:00 Tue	6/25 20:00 Tue	6/25 23:00 Tue	6/26 02:00 Wed	6/26 05:00 Wed	6/26 08:00 Wed	6/26 14:00 Wed	6/26 20:00 Wed
GFS-X/N							77				61				82				66		84
NAM-X/N							78				63				84				66		85
GFS-TMP	69	68	70	72	73	74	73	68	66	64	65	74	79	80	78	71	69	68	70	80	78
NAM-TMP	69	68	70	72	75	75	72	69	67	65	67	76	81	82	78	74	71	68	70	82	78
GFS-DPT	66	65	66	67	67	66	65	64	63	61	62	62	61	60	61	61	62	62	64	68	67
NAM-DPT	69	68	68	68	69	69	68	64	63	62	62	63	62	62	62	61	61	61	64	65	65
GFS-CLD	OV	OV	OV	OV	OV	OV	BK	SC	SC	CL	FW	SC	SC	SC	SC	SC	FW	SC	BK	BK	OV
NAM-CLD	OV	OV	OV	OV	OV	OV	BK	BK	SC	FW	FW	SC	BK	BK	SC	SC	SC	CL	SC	BK	BK
GFS-WDR	16	19	21	20	23	24	23	23	24	23	23	26	26	25	22	20	20	21	21	22	24
NAM-WDR	17	19	21	22	18	18	28	25	25	25	25	27	28	28	26	20	20	20	20	22	24
GFS-WSP	13	09	10	08	10	08	09	08	08	04	07	11	11	12	06	05	06	06	05	09	05
NAM-WSP	10	08	08	08	10	09	11	08	06	06	06	10	12	09	05	03	04	04	06	10	05
GFS-P06			38		59		44		15		3		1		2		0		9	15	30
NAM-P06			19		41		68		7		6		5		3		4		5	11	6
GFS-P12							89				15				4				9		44
NAM-P12							80				12				9				14		11
GFS-Q06			1		1		1		0		0		0		0		0		0	0	0
NAM-Q06			0		1		5		0		0		0		0		0		0	0	0
GFS-Q12							2				0				0				0		1
NAM-Q12							5				0				0				0		0
GFS-T06			23/ 0		18/ 5		24/ 6		8/ 8		0/ 1		1/ 3		9/13		7/ 6		10/ 2		53/23
NAM-T06			12/ 3		18/11		39/21		1/ 5		0/ 5		3/ 5		17/23		16/ 8		5/ 2		18/19
GFS-T12					34/10				24/15				1/ 5				9/13			21/ 8
NAM-T12					23/11				39/21				3/ 7				22/23			14/ 7
GFS-CIG	8	8	7	6	4	6	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8
NAM-CIG	7	6	5	5	6	3	8	6	8	8	8	8	7	8	8	8	8	8	8	8	8
GFS-VIS	7	7	7	6	5	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
NAM-VIS	7	7	7	7	7	4	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
GFS-OBV	N	N	N	N	BR	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N
NAM-OBV	N	N	N	N	N	BR	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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