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Soil/Surface Parameters
Snow cover (water equivalent)
Sea Surface Temperature
Sea Ice Coverage
0-10cm soil moisture
10-40cm soil moisture
40-100cm soil moisture
100-200cm soil moisture
0-10cm frozen soil moisture
10-40cm frozen soil moisture
40-100cm frozen soil moisture
100-200cm frozen soil moisture
0-10cm soil temperature
10-40cm soil temperature
40-100cm soil temperature
100-200cm soil temperature
0-200cm soil moisture
0-100cm moisture availability
Midday Albedo
Storm surface runoff
Baseflow-groundwater runoff
Surface roughness length
Surface terrain height
Greenness fraction

SLP, 1000-500 mb Thickness
CONUS N.America

Total Precipitation (in)
0-84h

3-H Accumulated Precipitation (in), SLP
CONUS N.America

24-H Accumulated Precipitation (in)
00-24h 12-36h
24-48h 36-60h
48-72h 60-84h

3-H Accumulated Convective Precipitation (in)
CONUS N.America

3-H Accumulated Snowfall (in; see note at the bottom)
CONUS

Total Convective Precipitation (in)
0-84h

Precipitation Type
CONUS

Visibility (km)
CONUS N.America

Visibility, Convective Precip Rate,
Lowest Model level rain, snow, cloud water, cloud ice
N.America

Percent of Frozen Precip vs Precipitation Type
00h 03h 06h
09h 12h 15h
18h 21h 24h
27h 30h 33h
36h 39h 42h
45h 48h 51h
54h 57h 60h
63h 66h 69h
72h 75h 78h
81h 84h
CONUS

Percent of Frozen Precip vs Instantaneous Precip Rate (mm/h)
00h 03h 06h 09h
12h 15h 18h 21h
24h 27h 30h 33h
36h 39h 42h 45h
48h 51h 54h 57h
60h 63h 66h 69h
72h 75h 78h 81h
84h

Instantaneous Precip Rate (mm/h)
CONUS N.America

Instantaneous Convective Precip Rate (mm/h)
CONUS N.America

Total Precipitation and Convective Precip Rate (mm/h)
CONUS N.America

Percent of Frozen Precip vs Lowest Model Level Rime Factor vs Precipitation Type
00h 03h 06h 09h
12h 15h 18h 21h
24h 27h 30h 33h
36h 39h 42h 45h
48h 51h 54h 57h
60h 63h 66h 69h
72h 75h 78h 81h
84h
CONUS N.America

Total Column-integrated cloud water+rain (mm)
CONUS N.America

Total Column-integrated cloud ice+snow (mm)
CONUS N.America

Total Column-integrated condensate (mm)
CONUS N.America

Total Column-integrated supercooled water and melting ice (mm)
CONUS Supercooled water N.America Supercooled water

Average column heating rates
Shortwave heating rate (deg C/hr)
Longwave heating rate (deg C/hr)
Grid-scale heating rate (deg C/hr)
Convective heating rate (deg C/hr)

Total Column-integrated moisture divergence
CONUS

Base and Top height of supercooled liquid water layer
CONUS Base height CONUS Top height

700 mb - 950 mb Rime Factor, snow mixing ratio,
rain mixing ratio, and cloud water mixing ratio
N.America

50 mb - 600 mb Rime Factor, snow mixing ratio,
cloud ice mixing ratio, and cloud water mixing ratio
N.America

850mb Height and Temperature
CONUS N.America

850mb Wind (kt)
CONUS

700mb Temperature
N.America

700mb Height and Total Column PW
CONUS N.America

700mb RH, Vertical Velocity
CONUS N.America

500mb Height and Vorticity
CONUS N.America

300mb Height and Wind Speed
CONUS N.America

250mb Height and Wind Speed
CONUS N.America

250mb Wind
CONUS

250mb Temperature
CONUS N.America

300mb Temperature
CONUS N.America

50mb Temperature
N.America

Dynamic Tropopause : Pressure and Potential Temperature on PV=1.5 level
Pressure Theta
NAM X X

Total Cloud Fraction - North America
Loop

Convective Cloud Fraction - North America
Loop

High Cloud Fraction - North America
Loop

Middle Cloud Fraction - North America
Loop

Low Cloud Fraction - North America
Loop

Cloud Top Temperature
CONUS N.America

Cloud Top Height
CONUS N.America

Cloud Top Pressure
CONUS N.America

Cloud Base Pressure
CONUS N.America

Cloud Base Height
CONUS N.America

Cloud Ceiling Height (in Kft above surface)
CONUS N.America

Deep Convective Cloud Top Pressure (mb)
CONUS N.America

Deep Convective Cloud Bottom Pressure (mb)
CONUS N.America

Total Convective Cloud Top Pressure (mb)
CONUS N.America

Total Convective Cloud Bottom Pressure (mb)
CONUS N.America

Grid-Scale Cloud Top Pressure (mb)
CONUS N.America

Grid-Scale Cloud Bottom Pressure (mb)
CONUS N.America

Height of Lowest Freezing Level (102 feet above sea level)
CONUS

PBL Height (Based on TKE)
CONUS N.America

PBL Height (Based on Richardson number)
CONUS N.America

2-M Temperature
CONUS N.America

Skin Temperature
CONUS N.America

Lowest Model Layer Temperature
CONUS N.America

Snow Water Equivalent
CONUS N.America

Snow Depth (in) - CONUS
CONUS

0-10 cm Soil Temperature - North America
Loop

0-10 cm Soil Moisture - North America
Loop

0-10 cm Frozen Soil Moisture - North America
Loop

10-40 cm Soil Temperature - North America
Loop

10-40 cm Soil Moisture - North America
Loop

10-40 cm Frozen Soil Moisture - North America
Loop

0-100 cm Soil Moisture Availability - North America
Loop

Skin Temp - 1st Layer Soil Temp : North America
Loop

Skin Temp - Lowest Model Layer Temp : North America
Loop

2-m Temp - Skin Temp : North America
Loop

Lowest Boundary Layer Dew Point Temperature (deg C)
CONUS

2-m Dew Point Temperature (deg C)
CONUS N.America

Best CAPE
CONUS

Best CIN
CONUS

Best Lifted Index
CONUS

K Index
CONUS

Surface-based CAPE
CONUS

Surface-based CIN
CONUS

60-90 mb AGL Potential Temperature
CONUS

60-90 mb AGL Equivalent Potential Temperature
CONUS

Mixed Layer CAPE
CONUS

Mixed Layer CIN
CONUS

Surface Downward Shortwave Flux
CONUS N.America

Surface Upward Shortwave Flux
N.America

Surface Downward Longwave Flux
N.America

Surface Upward Longwave Flux
N.America

*Instantaneous Albedo
N.America

* ( UpSWFsfc / DownSWFsfc ) * 100, where UpSWF=Instantaneous sfc upward shortwave flux
DownSWF=Instantaneous sfc downward shortwave flux

Surface Clear-sky - Downward Shortwave Flux
N.America

Net Surface Shortwave Flux
N.America

Net Surface Longwave Flux
N.America

Net Surface Shortwave+Longwave Flux
N.America

Ground Heat Flux
N.America

Latent Heat Flux
N.America

Sensible Heat Flux
N.America

Surface Energy Residual
CONUS

Potential Evaporation
N.America

Surface Exchange Coefficient
N.America

Lowest Model Layer Q2 (2*TKE)
N.America

2nd Lowest Model Layer Q2 (2*TKE)
N.America

Surface Friction Velocity
N.America CONUS

Surface Drag Coefficient
N.America

CONUS Simulated Radar Reflectivity (dBZ)
Composite Reflectivity Lowest Mdl Lev Reflectivity
1 km AGL Reflectivity Radar Echo Top Height (Kft)
All 3 Reflectivities Combined

Great Lakes Simulated Radar Reflectivity (dBZ)
Composite Reflectivity Lowest Mdl Lev Reflectivity
1 km AGL Reflectivity All 3 Combined

Top of Atmosphere Brightness Temperatures - (CONUS)
OLR Brightness T NCAR Brightness T
NAM Combined

Top of Atmosphere Brightness Temperatures - (North America)
OLR Brightness T NCAR Brightness T
NAM Combined

Top of Atmosphere Brightness Temperatures - (North Pacific)
OLR Brightness T NCAR Brightness T
NAM Combined

Top of Atmosphere Brightness Temperatures - (Alaska)
OLR Brightness T NCAR Brightness T
NAM Combined

Simulated GOES Brightness Temperatures

  • Channel 2 => 3.9 micron "shortwave infrared channel" (infrared emission only)
  • Channel 3 => 6.7 micron "water vapor channel"
  • Channel 4 => 10.7 micron "window channel"
  • Channel 5 => 12.0 micron "window channel" but with a different sensitivity to low-level moisture

    CH 2 CH 3 CH 4 CH 5
    CONUS X X X X
    N.America X X X X
    N.Pacific X X X X
    Alaska Region X X X X
    Tropical
    Atlantic
    X X X X
    Central
    Pacific /
    Hawaii
    X X X X
    Northeast
    CONUS
    X X X X
    Southeast
    CONUS
    X X X X
    North Central CONUS X X X X
    South Central CONUS X X X X
    Northwest
    CONUS
    X X X X
    Southwest
    CONUS
    X X X X

    Simulated GOES Brightness Temperatures and Simulated Radar Reflectivity

  • Channel 2 => 3.9 micron "shortwave infrared channel"
  • Channel 3 => 6.7 micron "water vapor channel"
  • Channel 4 => 10.7 micron "window channel"
  • Channel 5 => 12.0 micron "window channel" but with a different sensitivity to low-level moisture

  • Full CONUS plot : Composite Reflectivity & GOES brightness temperature
  • Regional CONUS : 1 km AGL Reflectivity & GOES brightness temperature

    CH 2 CH 3 CH 4 CH 5
    CONUS X X X X
    Northeast
    CONUS
    X X X X
    Southeast
    CONUS
    X X X X
    North Central CONUS X X X X
    South Central CONUS X X X X
    Northwest
    CONUS
    X X X X
    Southwest
    CONUS
    X X X X

    Regional Sfc Fields

    NE=Northeast CONUS
    SE=Southeast CONUS
    NC=North Central CONUS
    SC=South Central CONUS
    NW=Northwest CONUS
    SW=Southwest CONUS
    GF=Gulf of Mexico
    AK=Alaska

    NE SE NC SC NW SW GF AK
    SLP, 3-h Accumulated Precip X X X X X X X X
    10-m Wind,
    Sfc Height
    X X X X X X X X
    10-m Wind,
    Isotachs
    X X X X X X X X
    10-m Wind
    Gust
    X X X X X X X X
    Lowest level wind X X X X X X X
    Lowest level wind,
    isotachs
    X X X X X X X
    2-m Temp X X X X X X X X
    2-m Td X X X X X X X X
    3-h Precip X X X X X X X X
    3-h Conv Precip X X X X X X X X
    Precip Type X X X X X X X
    Percent of Frozen Precipitation X X X X X X
    Lowest Model Level Rime Factor X X X X X X
    Precip Water X X X X X X X X
    Best (4-layer) CAPE X X X X X X X X
    Surface-based CAPE X X X X X X X X
    Best (4-layer) CIN X X X X X X X X
    Surface-based CIN X X X X X X X X
    Best CAPE,CIN Combined X X X X X X X
    Total Cloud Fraction X X X X X X X X
    Low Cloud Fraction X X X X X X X
    Middle Cloud Fraction X X X X X X X
    High Cloud Fraction X X X X X X X
    Total Column Integrated Condensate X X X X X X X X
    Visibility X X X X X X X X
    Ceiling Hgt X X X X X X X X
    Composite Radar Reflectivity X X X X X X X X
    Radar Echo Top Height (Kft) X X X X X X
    Mean 150 mb AGL RH, Wind X X X X X X
    3-h Accum Snow (in, see note at the bottom)) X X X X X X
    Snow Depth (in) X X X X X X
    Snow Depth from F00 (in) X X X X X X
    Ice accretion (mm) X X X X X X
    NE SE NC SC NW SW GF AK

    NE SE NC SC NW SW
    00-24 H
    Accum Precip
    X X X X X X
    12-36 H
    Accum Precip
    X X X X X X
    24-48 H
    Accum Precip
    X X X X X X
    36-60 H
    Accum Precip
    X X X X X X
    48-72 H
    Accum Precip
    X X X X X X
    60-84 H
    Accum Precip
    X X X X X X
    84-H
    Accum Precip
    X X X X X X
    NE SE NC SC NW SW

    Regional Sfc Fields - Fire Weather

    NE=Northeast CONUS
    SE=Southeast CONUS
    NC=North Central CONUS
    SC=South Central CONUS
    NW=Northwest CONUS
    SW=Southwest CONUS

    NE SE NC SC NW SW
    Haines Index X
    X
    X
    X
    X
    X
    Ventilation Rate X
    X
    X
    X
    X
    X
    Transport Wind X
    X
    X
    X
    X
    X
    PBL Height (Based on TKE) X
    X
    X
    X
    X
    X
    PBL Height (Based on Richardson Number) X
    X
    X
    X
    X
    X
    1-h Minimum Relative Humidity X
    X
    X
    X
    X
    X
    NE SE NC SC NW SW

    New England 10-M Wind (kt), 2-M Temp
    Wind Temp

    Chesapeake Bay 10-M Wind (kt)
    Loop

    Central California Coast 10-M Wind (kt)
    Loop

    Great Salt Lake, Pacific Northwest 10-M Wind (kt)
    SLC PAC NW

    Great Lakes 10-M Wind (kt)
    NY Mich. Superior

    North/East/Central Pacific, Hawaii, Tropical Atlantic plots

    Hawaii/
    Central Pacific
    North Pacific/
    East Pacific
    Tropical
    Atlantic
    SLP X
    X
    X
    3-h Precip,SLP X
    X
    X
    3-h Conv
    Precip
    X
    X
    X
    Precipitable
    Water
    X
    X
    X
    10-m Wind X
    X
    X
    850 mb Wind,
    Isotachs
    X
    X
    X
    850 mb Wind,
    Streamlines
    X
    X
    X
    850 mb RH X
    X
    X
    700 mb RH, Omega X
    X
    X
    500 mb Height,
    Vorticity
    X
    X
    X
    250 mb Height,
    Wind Speed
    X
    X
    X
    250 mb Wind,
    Streamlines
    X
    X
    X
    850-200 mb Wind Shear,
    200 mb Streamlines
    X
    X
    X
    Model OLR
    Brightness
    Temp
    X
    X
    X
    NCAR
    Brightness
    Temp
    X
    X
    X

    Additional Hawaii Fields
    3-h Accum Precip
    10-m Wind,Isotachs
    10-m Wind,Sfc Height
    Composite Reflectivity
    Lowest Mdl Lev Reflectivity Shelter Temperature
    Shelter Dew Point Temperature Shelter Temp/Dew Point Temp

    Alaska/North Atlantic Region plots

    Alaska North
    Atlantic
    SLP X
    X
    3-h Precip, SLP X
    X
    3-h Conv
    Precip
    X
    X
    Precipitable Water X
    X
    10-m Wind X
    X
    850 mb Wind,
    Isotachs
    X
    X
    850 mb RH X
    X
    700 mb RH, Omega X
    X
    500 mb Height,
    Vorticity
    X
    X
    250 mb Height,
    Wind Speed
    X
    X
    Model OLR
    Brightness
    Temp
    X
    X
    NCAR
    Brightness
    Temp
    X
    X
    Best CAPE X
    X
    Instant Precip Rate X
    X
    Instant Convective Precip Rate X
    X

    Full Domain Height/Temp/Q/Wind/SLP plots

    Ops NAM
    SLP X
    1000 MB Z
    T
    Q
    W
    850 MB Z
    T
    Q
    W
    500 MB Z
    T
    Q
    W
    250 MB Z
    T
    Q
    W
    100 MB Z
    T
    Q
    W
    50 MB Z
    T
    Q
    W
    20 MB Z
    T
    Q
    W
    10 MB Z
    T
    Q
    W

    Regional Sfc Fields - Caribbean Sea
    SLP, 3-h Accumulated Precip
    10-m wind, Sfc Height
    10-m wind isotachs
    2-m temperature
    3-h Precipitation
    3-h Convective Precip
    Precipitable Water
    Total Column-Integrated Condensate
    Visibility
    Ceiling Height

    NOTE: As of 3/31/2017, The 3-h accumulated snowfall displayed on this web page is computed using the following formula for snow liquid ratio (SLR)

    SLR=MIN(SLRmax., MAX(1, 20./RF) )

    where RF is the Rime Factor, and SLRMAX=10