NDFD/NDGD: GRIB2 Customization

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	Degrib (NDFD GRIB2 Decoder)

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The main place to look for NDFD GRIB2 Customization would be: http://weather.gov/datamgmt/doc/GRIB2_encoding.html.

For information about the bytes between the GRIB messages, see: http://weather.gov/datamgmt/doc/ndfdref.html.

Originating Table

Center	SubCenter	Organization
7	0	unknown creators of ETA GRIB2 data (see NCEP)
7	5	Hydrometeorological Prediction Center
8	Missing (65535)	NDFD / NDGD

NDFD / NDGD Standard Parameter Table

Discipline	Section4 Template	Category	Number	Short Name	Long Name	Unit
0	0	0	0	T	Temperature	K
0	8	0	4	MaxT	Maximum Temperature	K
0	8	0	5	MinT	Minimum Temperature	K
0	0	0	6	Td	Dew point temperature	K
0	8	1	8	QPF	Total precipitation	kg/(m^2)
0	8	1	29	SnowAmt	Total snowfall	m
0	0	2	0	WindDir	Wind direction (from which blowing)	deg true
0	0	2	1	WindSpd	Wind speed	m/s
0	0	6	1	Sky	Total cloud cover	%
10	0	0	5	WaveHeight	Significant height of wind waves	m

NDFD / NDGD Local Parameter Table

Section4 Template	Category	Number	Short Name	Long Name	Unit
9	1	8	PoP12	Prob of 0.01 In. of Precip	%
0	1	192	Wx	Weather String	-
8	14	*193()**	Ozone08	8 hr Average Ozone Concentration	PPB
8	14	*193()**	Ozone01	1 hr Average Ozone Concentration	PPB

(* To differentiate Ozone08 and Ozone01, look at octets 50-53 length of time range in Template 4.8)

HPC Local Parameter Table

Discipline	Section4 Template	Category	Number	Short Name	Long Name	Unit
0	0	1	192	HPC-Wx	HPC Code	-

NDFD / NDGD "inactive" Parameter Table

Section4 Template	Category	Number	Short Name	Long Name	Unit
-	10	8	PoP12	Prob of 0.01 In. of Precip	%
-	14	192	O3MR	Ozone Mixing Ratio	kg/kg
8	14	193	AVGOZCON	Average Ozone Concentration	PPB
-	14	193	OZCON	Ozone Concentration	PPB


US Dept of Commerce National Oceanic and Atmospheric Administration National Weather Service Meteorological Development Laboratory 1325 East West Highway Silver Spring, MD 20910 Page last Modified: December 15, 2004.	Degrib Questions? Arthur Taylor NDFD Questions? nws.ndfd@noaa.gov XML Questions? Paul Hershberg & John Schattel Disclaimer Information Quality Credits Glossary	Privacy Policy Freedom of Information Act (FOIA) About Us Career Opportunities