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Operational Products

Real-time computer models and their update frequency

Model

Forecast Length

Update Frequency

NAM-WRF

84 hours

4x per day  [00Z 06Z 12Z 18Z]

NAM 4KM CONUS WRF

60 Hours

4x per day [00Z 06Z 12Z 18Z]
GFS

384 hours

4x per day  [00Z 06Z 12Z 18Z]
RUC Surface

18 hours

24x per day
RUC

18 hours

24x  per day
Navy NOGAPS

144 hours

2x per day  [00Z 12Z]
Canadian CMC

144 hours

2x per day  [00Z 12Z]
ECMWF

240 hours

2x per day  [00Z 12Z]

ECMWF Hi-Res

180 hours

2x per day [00Z 12Z]

UKMET

72 hours

2x per day  [00Z 12Z]
HWRF

126 hours

4x per day  [00Z 06Z 12Z 18Z]
GFDL

126 hours

4x per day  [00Z 06Z 12Z 18Z]
GFSX MOS

 192 hours

2x per day  [00Z 12Z]
GFS MOS

72 hours

4x per day  [00Z 06Z 12Z 18Z]
NAM MOS

 72 hours

4x per day  [00Z 06Z 12Z 18Z]
GFS LAMP MOS

 24 hours

24x per day
Hurricane Model Track Plots

120 hours

4x per day  [00Z 06Z 12Z 18Z]
Short Range Enembles (SREF)

 87 hours

4x per day [09Z 15Z 21Z 03Z]
GFS Ensembles

 384 hours

4x per day [00Z 12Z 18Z 06Z]
Canadian Global Ensembles

 240 hours

4x per day [00Z 12Z 18Z 06Z]
4km WRF-NMM 

 48 hours

2x per day. Hourly data!
4km WRF-ARW

 48 hours

2x per day. Hourly data!
Down Scaled Extended NAM (DGEX)

192 hours

2x per day.

NEXRAD / WSR-88D Radar Products
Updated every 5-6 minutes
150+ sites

Product

Range

Resolution

Elevations

Base Reflectivity 124 NM 1KM x 1 degree .05,1.45,2.40,3.35
Extended Base Reflectivity 260 NM 1KM x1 degree .05
Base Velocity 124 NM 1KM x 1 degree .05,1.45,2.40,3.35
Composite Reflectivity 124 NM 4X4 KM Entire Volume
Storm Relative Velocity 124 NM 1KM x 1 degree .05,1.45,2.40,3.35
Vertically Integrated Liquid 124 NM 4x4 KM Entire Volume
Echo Tops 124 NM 4x4 KM Entire Volume
1 Hour Precipitation 124 NM 2x2KM N/A
Storm Total Precipitation 124 NM 2x2KM N/A
Velocity Azimuth Display -- -- --

Terminal Doppler High Resolution Weather Radars
Updated every 5-10 minutes
48 sites nationwide

Product

Range

Resolution

Elevations

Base Reflectivity 48 NM 150 meters x 1/2 degree .01,1.0,2.0
Extended Base Reflectivity 225 NM 300 meters x 1/2 degree .06
Base Velocity 48 NM 150 meters x 1/2 degree .01,1.0,2.0
Composite Reflectivity 48 NM 4X4 KM Entire Volume
Storm Relative Velocity 48 NM 150 meters x 1/2 degree .05,1.45,2.40,3.35
Vertically Integrated Liquid 48  NM 4x4 KM Entire Volume
Echo Tops 48 NM 4x4 KM Entire Volume
1 Hour Precipitation 124 NM 2x2KM N/A
Storm Total Precipitation 124 NM 2x2KM N/A
Velocity Azimuth Display -- -- --

Satellite Imagery

Satellite

Product Frequency

Resolution

GOES East Infrared 15 minute (7.5 minute in Rapid Scan) 4KM
GOES East Visible 15 minute (7.5 minute in Rapid Scan) 1KM
GOES East Water Vapor 15 minute (7.5 minute in Rapid Scan) 4KM
GOES West Infrared 15 minute (7.5 minute in Rapid Scan) 4KM
GOES West Visible 15 minute (7.5 minute in Rapid Scan) 1KM
GOES West Water Vapor 15 minute (7.5 minute in Rapid Scan) 4KM
National Composite IR 15 minute 4KM
National Composite Visible 15 minute 1KM
National Composite Water Vapor 15 minute 4KM
Northen Hemisphere IR 15 minute 24KM
Northen Hemisphere Water Vapor 15 minute 24KM
Composite IR / Radar Satellite 15 minutes 4KM/1KM

Precison Radar®
Radar Mosaics Updated Every 5 Minutes 

Product Update Frequency Resolution Precipitation Types
Reflectivity Every 5 minutes 1x1KM Rain, Mix, Snow
Vertically Integrated Liquid (VIL) Every 5 Minutes 1x1KM N/A
Echo Tops Every 5 Minutes 1x1KM N/A
1 hour Precipitation Estimate Every 5 Minutes 1x1KM N/A
Storm Total Precipitation Est. Every 5 Minutes 1x1KM N/A

 Real-Time Lightning Plots

Region

Update Frequency

Accuracy

U.S.

Continous ingestion. Plots updated every  5 minutes

< 1/2 KM

 

 

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Georgia Tech
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