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Soil/Surface Parameters at 6-h
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
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Total Precipitation (in)
0-60h

SLP, 3-h Accumulated Precipitation (in)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

24-H Accumulated Precipitation (in)
06-30h 18-42h
30-54h

3-h Accumulated Convective Precipitation (in)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Total Convective Precipitation (in)
0-60h

3-h Snowfall
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Precipitation Type
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Visibility (km)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Visibility, Convective Precip Rate,
Lowest Model level rain, snow, cloud water, cloud ice
NAM Loop CONUS4KM Loop

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

NAM Loop CONUS4KM Loop NAM,CONUS4KM Loop

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

Instantaneous Precip Rate (mm/h)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Instantaneous Convective Precip Rate (mm/h)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Total Precipitation and Convective Precip Rate (mm/h)
CONUS
NAM X
CONUS4KM X

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

Lowest Model Level Rime Factor Loops
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Total Column-integrated cloud water+rain (mm)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Total Column-integrated cloud ice+snow (mm)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Total Column-integrated condensate (mm)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Total Column-integrated supercooled water (mm)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Total Column-integrated melting ice (mm)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Average column heating rates
Shortwave heating
rate (deg C/hr)
Longwave heating
rate (deg C/hr)
NAM X X
CONUS4KM X X
NAM,CONUS4KM X X

Grid-scale heating
rate (deg C/hr)
Convective heating
rate (deg C/hr)
NAM X X
CONUS4KM X X
NAM,CONUS4KM X X

Total Column-integrated moisture divergence
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Base and Top height of supercooled liquid water layer
Base
height
Top
height
Both
NAM X X X
CONUS4KM X X X
NAM,CONUS4KM X X

700 mb - 950 mb Rime Factor, snow mixing ratio,
rain mixing ratio, and cloud water mixing ratio
NAM CONUS4KM

50 mb - 600 mb Rime Factor, snow mixing ratio,
cloud ice mixing ratio, and cloud water mixing ratio
NAM CONUS4KM

1000mb Temperature
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM Temps X

925mb Temperature
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM Temps X

850mb Height and Temperature
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM Temps X

850mb Wind (kt)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

700mb Temperature
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

700mb Height and Total Column PW
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM PW X

700mb RH, Vertical Velocity
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM RH X

500mb Height and Vorticity
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

300mb Height and Wind Speed
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM
Wind Speed
X

250mb Height and Wind Speed
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM
Wind Speed
X

250mb Wind
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

250mb Temperature
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

300mb Temperature
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

500mb Temperature
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

50mb Temperature
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Total/Convective Cloud Fraction - CONUS
Total Convective
NAM X X
CONUS4KM X X
NAM,CONUS4KM X X

Low/Middle/High Cloud Fraction - CONUS
Low Middle High
NAM X X X
CONUS4KM X X X
NAM,CONUS4KM X X X

Cloud Top Temperature/Height/Pressure
Temp Height Pressure
NAM X X X
CONUS4KM X X X
NAM,CONUS4KM X X X

Cloud Base Pressure/Height
Height Pressure
NAM X X
CONUS4KM X X
NAM,CONUS4KM X X

Cloud Ceiling Height (Kft above surface)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Deep Convective Cloud Top/Bottom Pressure (mb)
Top
Pressure
Bottom
Pressure
NAM X X
CONUS4KM X X
NAM,CONUS4KM X X

Shallow Convective Cloud Top/Bottom Pressure (mb)
Top
Pressure
Bottom
Pressure
NAM X X
CONUS4KM X X
NAM,CONUS4KM X X

Total Convective Cloud Top/Bottom Pressure (mb)
Top
Pressure
Bottom
Pressure
NAM X X
CONUS4KM X X
NAM,CONUS4KM X X

Grid-Scale Cloud Top/Bottom Pressure (mb)
Top
Pressure
Bottom
Pressure
NAM X X
CONUS4KM X X
NAM,CONUS4KM X X

Height of Lowest Freezing Level (102 feet above sea level)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

PBL Height (Based on TKE)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

PBL Height (Based on Richardson Number)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

2-M Temperature
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Skin Temperature
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Lowest Model Layer Temperature
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Snow Water Equivalent
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Snow Depth (in)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Soil Parameters - CONUS
NAM CONUS4KM NAM,
CONUS4KM
0-10 cm
Soil Temp
X X X
10-40 cm
Soil Temp
X X X
0-10 cm
Soil Moisture
X X X
10-40 cm
Soil Moisture
X X X
0-10 cm
Frozen Soil
Moisture
X X X
10-40 cm
Frozen Soil
Moisture
X X X
0-100 cm Soil
Moisture
Availability
X X X

Skin Temp - 1st Layer Soil Temp
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Skin Temp - Lowest Model Layer Temp
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

2-m Temp - Skin Temp
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Lowest Boundary Layer Dew Point Temperature (deg C)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

2-m Dew Point Temperature (deg C)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

CAPE/CIN/Lifted Index/K-Index/Helicity
NAM CONUS4KM NAM,
CONUS4KM
Best CIN X X X
Best Lifted
Index
X X X
Surface CIN X X X
0-1 km Storm Relative Helicity X X X
0-3 km Storm Relative Helicity X X X
K-Index X X X

Best
CAPE
Sfc
CAPE
Mixed
Layer
CAPE
NAM X X X
CONUS4KM X X X
NAM,CONUS4KM X X X
NAM-CONUS4KM X X X

Surface Downward Shortwave Flux
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Surface Upward Shortwave Flux
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Surface Downward Longwave Flux
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Surface Upward Longwave Flux
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

*Instantaneous Albedo
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

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

Surface Clear-sky - Downward Shortwave Flux
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Net Surface Shortwave Flux
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Net Surface Longwave Flux
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Net Surface Shortwave+Longwave Flux
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Ground Heat Flux
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Latent Heat Flux
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Sensible Heat Flux
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X
CONUS4KM-NAM X

Surface Energy Residual
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Potential Evaporation
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Surface Exchange Coefficient
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Lowest Model Layer Q2 (2*TKE)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

2nd Lowest Model Layer Q2 (2*TKE)
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Surface Friction Velocity
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Surface Drag Coefficient
CONUS
NAM X
CONUS4KM X
NAM,CONUS4KM X

Simulated Radar Reflectivity (dBZ)
NAM CONUS4KM NAM,
CONUS4KM
Composite
Reflectivity
X X X
Lowest Model Level
Reflectivity
X X X
1 km AGL
Reflectivity
X X X
All 3 Combined X X
Radar Echo Top Height (Kft) X X X

Top of Atmosphere Brightness Temperatures
CONUS
Model OLR NAM
CONUS4KM
Both
NCAR Brightness
Temp
NAM
CONUS4KM
Both
Combined NAM
CONUS4KM

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

    P=NAM
    N=CONUS4KM
    C=NAM,CONUS4KM

    CH 2 CH 3 CH 4 CH 5
    CONUS P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Northeast
    CONUS
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Southeast
    CONUS
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    North Central CONUS P
    N
    C
    P
    N
    C
    P
    N
    N
    P
    N
    C
    South Central CONUS P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Northwest
    CONUS
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Southwest
    CONUS
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C

    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

    P=NAM Parent run
    N=CONUS4KM Nest run
    C=NAM,CONUS4KM Combined

    NE SE NC SC NW SW GF
    SLP, 3-h Accumulated Precip P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    10-m Wind,
    Surface Height
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    10-m Wind
    Isotachs
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    10-m Wind
    Gust
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Lowest level
    wind, sfc height
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Lowest level
    wind, isotachs
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    2-m Temp P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    2-m Td P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    3-h Precip P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    3-h Conv
    Precip
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Precip Type P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Percent of Frozen Precipitation P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Precip Water P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Best CAPE P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Sfc CAPE P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Best CIN P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Sfc CIN P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Best CAPE,CIN combined P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Total Cloud
    Fraction
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Low Cloud
    Fraction
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Middle Cloud
    Fraction
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    High Cloud
    Fraction
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Total Column
    Integrated
    Condensate
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Visibility P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Ceiling Hgt P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Composite
    Radar
    Reflectivity
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Radar Echo
    Top Height (Kft)
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Mean 150 mb AGL RH, Wind P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    3-h Snowfall P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    Snow Depth (in) P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    P
    N
    C
    NE SE NC SC NW SW GF

    Regional Sfc Fields - Severe Weather (CONUS Nest only)

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

    N=CONUS4KM Nest run

    NE SE NC SC NW SW
    1-h Maximum 1 km Reflectivity N
    N
    N
    N
    N
    N
    1-h Maximum 400-1000 mb Updraft Vertical Velocity (m/s) N
    N
    N
    N
    N
    N
    1-h Maximum 400-1000 mb Downdraft Vertical Velocity (absolute value in m/s) N
    N
    N
    N
    N
    N
    1-h Maximum 2-5 km Updraft Helicity (m2/s2) N
    N
    N
    N
    N
    N
    1-h Maximum 10-m Wind (kts) N
    N
    N
    N
    N
    N
    0-1 km Storm-scale Helicity (m2/s2) N
    N
    N
    N
    N
    N
    0-3 km Storm-scale Helicity (m2/s2) N
    N
    N
    N
    N
    N
    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

    P=NAM Parent run
    N=CONUS4KM Nest run
    C=NAM,CONUS4KM Combined

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

    NE SE NC SC NW SW
    06-30 H
    Accum Precip
    X X X X X X
    18-42 H
    Accum Precip
    X X X X X X
    30-54 H
    Accum Precip
    X X X X X X
    60 H
    Accum Precip
    X X X X X X
    NE SE NC SC NW SW

    Regional 10-m Winds (kt)
    NAM CONUS4KM NAM,
    CONUS4KM
    Great Salt Lake 10-m Wind
    2-m T
    2-m Td
    10-m Wind
    2-m T
    2-m Td
    10-m Wind
    2-m T
    2-m Td
    New England 10-m Wind
    2-m T
    10-m Wind
    2-m T
    10-m Wind
    2-m T
    Chesapeake
    Bay
    10-m Wind 10-m Wind 10-m Wind
    Lake Erie,
    Ontario
    10-m Wind 10-m Wind 10-m Wind
    Lake Michigan 10-m Wind 10-m Wind 10-m Wind
    Lake Superior 10-m Wind 10-m Wind 10-m Wind
    Pacific
    Northwest
    10-m Wind 10-m Wind 10-m Wind
    Central California
    Coast
    10-m Wind 10-m Wind 10-m Wind
    Southern California 10-m Wind 10-m Wind 10-m Wind