KD4PYR MOS Compare

NWS Watch, Warning, Advisory or Statement is in effect for Boone County, KY. View Alert

GFS and NAM MOS Compare

KCVG GFS MOS GUIDANCE 9/25/2018 0000 UTC
KCVG NAM MOS GUIDANCE 9/25/2018 0000 UTC

Date/Time UTC	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	9/25 21:00 Tue	9/26 00:00 Wed	9/26 03:00 Wed	9/26 06:00 Wed	9/26 09:00 Wed	9/26 12:00 Wed	9/26 15:00 Wed	9/26 18:00 Wed	9/26 21:00 Wed	9/27 00:00 Thu	9/27 03:00 Thu	9/27 06:00 Thu	9/27 09:00 Thu	9/27 12:00 Thu	9/27 18:00 Thu	9/28 00:00 Fri
Date/Time Local	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 17:00 Tue	9/25 20:00 Tue	9/25 23:00 Tue	9/26 02:00 Wed	9/26 05:00 Wed	9/26 08:00 Wed	9/26 11:00 Wed	9/26 14:00 Wed	9/26 17:00 Wed	9/26 20:00 Wed	9/26 23:00 Wed	9/27 02:00 Thu	9/27 05:00 Thu	9/27 08:00 Thu	9/27 14:00 Thu	9/27 20:00 Thu
GFS-X/N							78				63				69				51		70
NAM-X/N							80				64				71				48		68
GFS-TMP	69	69	68	72	74	74	71	72	71	71	69	63	64	67	61	57	55	53	53	67	63
NAM-TMP	69	69	68	71	76	77	74	71	69	68	66	64	67	68	61	56	53	51	49	65	60
GFS-DPT	68	67	67	69	71	72	71	70	70	68	65	59	55	52	50	49	49	50	49	49	49
NAM-DPT	68	67	66	69	71	71	70	69	67	66	64	62	57	54	52	47	46	46	45	48	47
GFS-CLD	OV	OV	OV	OV	OV	OV	OV	OV	OV	OV	OV	OV	BK	CL	FW	SC	OV	OV	OV	BK	CL
NAM-CLD	OV	OV	OV	OV	OV	OV	OV	OV	OV	OV	OV	OV	OV	BK	BK	FW	CL	FW	SC	OV	FW
GFS-WDR	17	18	18	19	20	20	18	18	22	24	29	31	32	31	34	36	05	04	07	18	24
NAM-WDR	18	18	18	19	19	20	18	19	20	22	24	30	33	33	34	03	04	06	06	23	21
GFS-WSP	11	10	11	12	11	10	08	11	12	07	10	12	11	09	05	04	04	02	04	05	02
NAM-WSP	11	09	11	10	09	08	07	10	10	09	07	11	13	12	06	05	04	03	02	05	04
GFS-P06			71		65		60		80		55		16		2		2		7	8	9
NAM-P06			63		39		52		72		67		28		11		9		12	12	11
GFS-P12							68				83				16				7		14
NAM-P12							85				84				40				12		14
GFS-Q06			1		2		2		5		1		0		0		0		0	0	0
NAM-Q06			1		0		1		4		2		0		0		0		0	0	0
GFS-Q12							1				5				0				0		0
NAM-Q12							3				3				0				0		0
GFS-T06			20/ 0		21/ 2		38/11		52/11		16/ 1		4/ 1		0/ 0		0/ 0		0/ 0		0/ 0
NAM-T06			24/ 0		14/ 1		35/11		35/10		28/ 2		17/ 4		0/ 0		0/ 0		0/ 1		1/ 4
GFS-T12					24/ 3				52/11				17/ 3				0/ 0			1/ 2
NAM-T12					28/ 2				51/14				39/ 5				0/ 0			0/ 2
GFS-POZ	0	0	1	0	0	0	1	2	0	0	0	0	0	0	0	0	0	0	0	0	0
NAM-POZ	1	1	1	1	0	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0
GFS-POS	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
NAM-POS	0	0	0	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	2	2	2	3	4	5	6	7	4	3	3	4	8	8	8	8	8	8	7	8	8
NAM-CIG	2	2	2	2	1	6	6	6	2	4	3	3	1	6	8	8	8	8	8	8	8
GFS-VIS	6	6	7	5	6	6	7	5	6	7	6	7	7	7	7	7	7	7	7	7	7
NAM-VIS	5	5	5	5	7	7	7	5	7	7	5	5	7	7	7	7	7	7	4	7	7
GFS-OBV	N	BR	N	BR	N	N	N	BR	BR	N	BR	N	N	N	N	N	N	N	N	N	N
NAM-OBV	N	BR	N	BR	N	N	N	N	N	N	BR	BR	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.

2,391 Page Views