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Status of NDGD Elements

Access Data

NDFD Home

National Digital Guidance Database

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You can access NDGD elements via file transfer protocol (ftp), http, eXtensible Markup Language (XML), or web browser. Links to the data, supporting information and software are listed below:

Description of NDGD Database Contents

Elements

The NDGD contains data representing the following weather elements. Elements will be added as development of the NDGD progresses. Click here for the latest status.

Elements

No. of Grids

Projections

Gridded Model Output Statistics (GMOS)  [00z and 12z GFS model cycles]

Maximum Temperature

8

Every 24 hours, out to 192 hours

Minimum Temperature

8

Every 24 hours, out to 192 hours

Temperature

63

Every 3 hours from 6 to 192 hours

Dewpoint

63

Every 3 hours from 6 to 192 hours

Relative Humidity

63

Every 3 hours from 6 to 192 hours

Wind Direction

63

Every 3 hours from 6 to 192 hours

Wind Speed

63

Every 3 hours from 6 to 192 hours

6-hour Probability of Precipitation

31

Every 6 hours from 12 to 192 hours

12-hour Probability of Precipitation

30

Every 6 hours, from 18 to 192 hours

3-hour Probability of Thunderstorms

26

Every 3 hours from 9 to 84 hours

6-hour Probability of Thunderstorms

31

Every 6 hours from 12 to 192 hours (156 for AK )

12-hour Probability of Thunderstorms

30

Every 12 hours, from 18 to 192 hours (156 for AK )

Wind Gust

63

Every 3 hours from 6 to 192 hours

Sky Cover

63

Every 3 hours from 6 to 192 hours

6-hour Quantitative Precipitation Forecast

25

Every 6 hours from 12 to 156 hours

12-hour Quantitative Precipitation Forecast

31

Every 6 hours from 18 to 192 hours

24-hour Snowfall Amount

9

Every 12h from 36 to 132 hours

Weather

63

Every 3 hours from 6 to 192 hours

Air Quality  [06z and 12z GFS model cycles]

1-hour Average Ozone Concentration

44

Every hour from 5 to 48 hours

8-hour Average Ozone Concentration

41

Every hour from 7 to 48 hours

1-hour Average Surface Smoke

48

Every hour from 1 to 48 hours

1-hour Average Vertical Smoke Integration

48

Every hour from 1 to 48 hours

Daily Maximum 1-hour Average Ozone Concentration

1

Every 24 hours

Daily Maximum 8-hour Average Ozone Concentration

1

Every 24 hours

1-hour Average Surface Dust Concentration

48

Every hour from 1 to 48 hours

8-hour Average Vertical Dust Concentration

48

Every hour from 1 to 48 hours

Local Aviation MOS Program (LAMP)  [00z through 23z]

2-hour Probability of Thunderstorms

14

Every hour from 2 to 6 hours, every 2 hours from 7 to 25 hours

2-hour Thunderstorm Best Category

14

Every hour from 2 to 6 hours, every 2 hours from 7 to 25 hours

Temperature

25

Every hour from 1 to 25 hours

Dewpoint

25

Every hour from 1 to 25 hours

Ceiling Height

25

Every hour from 1 to 25 hours

Visibility

25

Every hour from 1 to 25 hours

SLOSH  [Hurricane 04z, 10z, 16z, 22z;  Extratropical 00z and 12z  GFS model cycle]

Probability of hurricane storm surge >n feet

1

Cumulative through 72 hours

Exceedance hurricane storm surge height

1

Cumulative through 72 hours

Extratropical storm surge height

97

Every hour from 0 hours to 96 hours

Real Time Mesoscale Analysis [00z through 23z]

Temperature

1

Every hour

Dewpoint

1

Every hour

Sky Cover

1

Every hour

Wind Direction

1

Every hour

Wind Speed

1

Every hour

1-hour Precipitation Amount

1

Every hour

Surface Pressure

1

Every hour

Temperature Uncertainty

1

Every hour

Dewpoint Uncertainty

1

Every hour

Wind Direction Uncertainty

1

Every hour

Wind Speed Uncertainty

1

Every hour

Surface Pressure Uncertainty

1

Every hour

Model Terrain Height

1

Static

Ensemble Kernel Density MOS [00z and 12z GFS model cycles]

Maximum Temperature CDF05

16

Every 24 hours from 30 hours to 390 hours

Maximum Temperature CDF10

16

Every 24 hours from 30 hours to 390 hours

Maximum Temperature CDF20

16

Every 24 hours from 30 hours to 390 hours

Maximum Temperature CDF30

16

Every 24 hours from 30 hours to 390 hours

Maximum Temperature CDF40

16

Every 24 hours from 30 hours to 390 hours

Maximum Temperature CDF50

16

Every 24 hours from 30 hours to 390 hours

Maximum Temperature CDF60

16

Every 24 hours from 30 hours to 390 hours

Maximum Temperature CDF70

16

Every 24 hours from 30 hours to 390 hours

Maximum Temperature CDF80

16

Every 24 hours from 30 hours to 390 hours

Maximum Temperature CDF90

16

Every 24 hours from 30 hours to 390 hours

Maximum Temperature CDF95

16

Every 24 hours from 30 hours to 390 hours

Maximum Temperature Mean

16

Every 24 hours from 30 hours to 390 hours

Minimum Temperature CDF05

15

Every 24 hours from 42 hours to 378 hours

Minimum Temperature CDF10

15

Every 24 hours from 42 hours to 378 hours

Minimum Temperature CDF20

15

Every 24 hours from 42 hours to 378 hours

Minimum Temperature CDF30

15

Every 24 hours from 42 hours to 378 hours

Minimum Temperature CDF40

15

Every 24 hours from 42 hours to 378 hours

Minimum Temperature CDF50

15

Every 24 hours from 42 hours to 378 hours

Minimum Temperature CDF60

15

Every 24 hours from 42 hours to 378 hours

Minimum Temperature CDF70

15

Every 24 hours from 42 hours to 378 hours

Minimum Temperature CDF80

15

Every 24 hours from 42 hours to 378 hours

Minimum Temperature CDF90

15

Every 24 hours from 42 hours to 378 hours

Minimum Temperature CDF95

15

Every 24 hours from 42 hours to 378 hours

Minimum Temperature Mean

15

Every 24 hours from 42 hours to 378 hours

Temperature CDF05

63

Every 3 hours from 6 hours to 192 hours

Temperature CDF10

63

Every 3 hours from 6 hours to 192 hours

Temperature CDF20

63

Every 3 hours from 6 hours to 192 hours

Temperature CDF30

63

Every 3 hours from 6 hours to 192 hours

Temperature CDF40

63

Every 3 hours from 6 hours to 192 hours

Temperature CDF50

63

Every 3 hours from 6 hours to 192 hours

Temperature CDF60

63

Every 3 hours from 6 hours to 192 hours

Temperature CDF70

63

Every 3 hours from 6 hours to 192 hours

Temperature CDF80

63

Every 3 hours from 6 hours to 192 hours

Temperature CDF90

63

Every 3 hours from 6 hours to 192 hours

Temperature CDF95

63

Every 3 hours from 6 hours to 192 hours

Temperature Mean

63

Every 3 hours from 6 hours to 192 hours

Dewpoint CDF05

63

Every 3 hours from 6 hours to 192 hours

Dewpoint CDF10

63

Every 3 hours from 6 hours to 192 hours

Dewpoint CDF20

63

Every 3 hours from 6 hours to 192 hours

Dewpoint CDF30

63

Every 3 hours from 6 hours to 192 hours

Dewpoint CDF40

63

Every 3 hours from 6 hours to 192 hours

Dewpoint CDF50

63

Every 3 hours from 6 hours to 192 hours

Dewpoint CDF60

63

Every 3 hours from 6 hours to 192 hours

Dewpoint CDF70

63

Every 3 hours from 6 hours to 192 hours

Dewpoint CDF80

63

Every 3 hours from 6 hours to 192 hours

Dewpoint CDF90

63

Every 3 hours from 6 hours to 192 hours

Dewpoint CDF95

63

Every 3 hours from 6 hours to 192 hours

Dewpoint Mean

63

Every 3 hours from 6 hours to 192 hours

Downscaled Numerical Guidance [12z model cycle]

1-hour UV Index

28

Every daylight hour from 6 hours to 39 hours

Daily Maximum UV Index

5

Every 24 hours to 120 hours

Down-Welling Shortwave Radiation Flux

27

Every 3 daylight hours from 6 to 111 hours

Haines Index (Low, Mid, High)

13

Every 6 hours to 72 hours

Mixing Height

25

Every 3 hours to 72 hours

Transport Wind Direction

25

Every 3 hours to 72 hours

Transport Wind Speed

25

Every 3 hours to 72 hours

Ventilation Rate

25

Every 3 hours to 72 hours


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