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 7/23/2021 1800 UTC
KCVG NAM MOS GUIDANCE 7/23/2021 1200 UTC

Date/Time UTC	7/23 18:00 Fri	7/23 21:00 Fri	7/24 00:00 Sat	7/24 03:00 Sat	7/24 06:00 Sat	7/24 09:00 Sat	7/24 12:00 Sat	7/24 15:00 Sat	7/24 18:00 Sat	7/24 21:00 Sat	7/25 00:00 Sun	7/25 03:00 Sun	7/25 06:00 Sun	7/25 09:00 Sun	7/25 12:00 Sun	7/25 15:00 Sun	7/25 18:00 Sun	7/25 21:00 Sun	7/26 00:00 Mon	7/26 03:00 Mon	7/26 06:00 Mon	7/26 12:00 Mon	7/26 18:00 Mon
Date/Time Local	7/23 14:00 Fri	7/23 17:00 Fri	7/23 20:00 Fri	7/23 23:00 Fri	7/24 02:00 Sat	7/24 05:00 Sat	7/24 08:00 Sat	7/24 11:00 Sat	7/24 14:00 Sat	7/24 17:00 Sat	7/24 20:00 Sat	7/24 23:00 Sat	7/25 02:00 Sun	7/25 05:00 Sun	7/25 08:00 Sun	7/25 11:00 Sun	7/25 14:00 Sun	7/25 17:00 Sun	7/25 20:00 Sun	7/25 23:00 Sun	7/26 02:00 Mon	7/26 08:00 Mon	7/26 14:00 Mon
GFS-N/X	--	--					64				86				69				85			67
NAM-N/X							66				88				73				88	--		70	--
GFS-TMP	--	--	80	71	68	66	67	77	82	84	82	75	72	71	73	79	82	82	79	74	72	70	87
NAM-TMP	81	84	80	74	71	68	70	80	85	85	81	77	75	74	76	81	85	85	80	--	73	72	--
GFS-DPT	--	--	62	63	63	63	64	64	64	65	67	68	68	69	70	73	72	72	72	71	69	68	67
NAM-DPT	61	61	62	64	64	64	65	65	65	65	66	68	68	69	71	73	73	73	73	--	72	71	--
GFS-CLD	--	--	FW	CL	CL	CL	FW	CL	SC	BK	SC	SC	BK	OV	OV	BK	BK	BK	BK	SC	FW	BK	SC
NAM-CLD	SC	SC	SC	SC	CL	CL	FW	FW	SC	SC	SC	FW	SC	BK	BK	BK	BK	BK	BK	--	OV	BK	--
GFS-WDR	--	--	14	13	16	16	18	20	21	22	21	21	22	22	22	25	25	26	30	19	08	02	04
NAM-WDR	13	12	13	14	16	17	19	22	23	23	21	20	21	21	23	23	24	24	26	--	20	33	--
GFS-WSP	--	--	03	02	02	02	02	04	06	06	04	05	04	05	04	06	07	06	04	02	01	02	05
NAM-WSP	04	04	03	02	01	01	02	05	06	07	04	03	04	03	05	07	07	07	04	--	03	03	--
GFS-P06	--	--			1		0		0		8		6		38		46		45		19	18	6
NAM-P06			2		0		2		1		1		3		23		23		39	--	38	31	--
GFS-P12	--	--					1				8				44				60			32
NAM-P12							2				2				29				52	--		53	--
GFS-Q06	--	--			0		0		0		0		0		1		1		1		0	0	0
NAM-Q06			0		0		0		0		0		0		0		0		1	--	0	0	--
GFS-Q12	--	--					0				0				1				3			0
NAM-Q12							0				0				0				1	--		2	--
GFS-T06	--	--			2/ 0		1/ 0		4/ 3		12/ 9		6/ 5		18/ 2		29/ 5		47/19		17/ 4		5/ 2
NAM-T06			4/ 5		2/ 0		1/ 0		4/ 3		7/ 9		2/ 7		15/ 3		17/ 7		36/22	--		22/ 4	--
GFS-T12	--	--							4/ 3				12/ 9				43/ 7				52/19		11/ 3
NAM-T12					4/ 7				4/ 3				7/10				25/ 7			--	59/26		--
GFS-CIG	--	--	8	8	8	8	8	8	8	8	8	8	8	8	7	7	6	8	8	8	8	8	8
NAM-CIG	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	6	7	8	--	8	8	--
GFS-VIS	--	--	7	7	7	6	6	7	7	7	7	7	7	7	7	7	7	7	7	7	5	4	7
NAM-VIS	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	--	4	4	--
GFS-OBV	--	--	N	N	N	HZ	HZ	N	N	N	N	N	N	N	N	N	N	N	N	N	BR	BR	N
NAM-OBV	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	--	BR	BR	--

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.

4,505 Page Views