AWT Data Viewer
The Aviation Weather Testbed (AWT) Data Viewer is an aviation weather geographical display tool, that builds upon the AWC Graphical Forecast for Aviation (GFA). This page allows for data visualization of operational and experimental data through the GFA framework through advanced configuration.
This tool is not to be used for flight planning or naviation and is not operational. This page is subject to downtime and is not supported 24/7.
Legends
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| Weather Symbols |
| TAF Station Plot |
|---|
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| Weather Symbols |
| Flight Cat | |||||||
|---|---|---|---|---|---|---|---|
| LIFR | IFR | MVFR | VFR | ||||
non-ceiling clouds below 3000 ft All Symbols | | ||||||
| PIREP | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Turb | Ice | Other | |||||||||
| | | | | %20scale(2)%22%3E%3Cpath%20d=%22m12.016%202.64-1.219%201.688v5.438l-7.594%204.031v1.469l7.594-2.531v6.031l-2.781%201.156v1.438l4-1.031%204%201.031v-1.469l-2.813-1.125v-6.031l7.594%202.531V13.297L13.203%209.766V5.328z%22%20stroke=%22%23000%22%20fill=%22%23000%22/%3E%3C/g%3E%3Ctext%20x=%2240%22%20y=%2280%22%20text-anchor=%22middle%22%20style=%22font-family:Helvetica,sans;font-size:24px%22%3E024%3C/text%3E%3C/svg%3E) | |||||||||
| NIL | LGT | MOD | SEV | LLWS | NIL | LGT | MOD | SEV | |||
| Radar (dBZ) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 15 | 25 | 35 | 45 | 55 | 65 | ||||||||
| Radar Echo Tops (kft) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 15 | 25 | 35 | 45 | 55 | 65 | ||||||||
| Lightning (event density per 5 min) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No Coverage over Alaska | ||||||||||||||
| 10 | 20 | 30 | 40 | 50 | 60 | 70 | ||||||||
| Wind Speed (kt) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 20 | 30 | 40 | 80 | 120 | 160 | |||||||||
| Wind Barbs | |||
|---|---|---|---|
| Calm | 15kt | 60kt | 25G30kt |
| Sky Coverage <FL180 | |||
|---|---|---|---|
| FEW | SCT | BKN | OVC |
| Cloud Top (MSL x100 ft) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 060 | 120 | 180 | 300 | 420 | ||||||
| Cloud Base (MSL x100 ft) | ||||||
|---|---|---|---|---|---|---|
| 060 | 120 | 180 | ||||
| Sky Cover <FL180 | ||||
|---|---|---|---|---|
| SKC | FEW | SCT | BKN | OVC |
| Flight Cat | ||
|---|---|---|
| LIFR | IFR | MVFR |
| Ceiling (ft AGL) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 100 | 300 | 500 | 700 | 1000 | 2000 | ||||||||
| Weather Symbols | |||||||||||||
| Visibility (SM) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.25 | 0.5 | 1 | 2 | 3 | 4 | ||||||||
| Weather Symbols | |||||||||||||
| Density Alt Dev (ft) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 500 | 1000 | 1500 | 2000 | 2500 | 3000 | 3500 | 4000 | ||||||||||
| Weather Symbols | |||||||||||||||||
| Precipitation | |||||
|---|---|---|---|---|---|
| Rain | Snow | Mix | Ice | TS | |
| Chance | |||||
| Likely | Severe | ||||
| Weather Symbols | |||||
| Weather | |||
|---|---|---|---|
| Haze | Smoke | Fog | Dust/Sand |
| Thunderstorm | ||
|---|---|---|
| ISOL | SCT | NUM |
| Weather Symbols | ||
| TCF | ||
|---|---|---|
| Coverage | Lines | |
| Sparse 25-39% | Medium 40-74% | Solid 75-100% |
| SPC Convective Outlook | |||||
|---|---|---|---|---|---|
| TSTM | MRGL | SLGT | ENH | MDT | HIGH |
| SPC Product Description | |||||
| Winter Weather | |||
|---|---|---|---|
| Snow | Mix | Ice | |
| Chance | |||
| Likely | |||
| Weather Symbols | |||
| Icing Severity | |||
|---|---|---|---|
| Trace | Light | Mod | Heavy |
| Icing Severity with SLD | ||||
|---|---|---|---|---|
| Trace | Light | Mod | Heavy | SLD |
| Icing Probability (%) | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 15 | 25 | 35 | 45 | 55 | 65 | 75 | |||||||||||
| Freezing Level (MSL x100ft) | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 010 | 030 | 050 | 070 | 090 | 110 | 130 | 150 | 170 | |||||||||||
| RAP Icing (%) | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | |||||||||||
| Temperature | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | -70 | -65 | -60 | -55 | -50 | -45 | -40 | -35 | -30 | -25 | -20 | -15 | -10 | -5 | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | |||||||||||||||||||||||||||||||||||||||||
| F | -94 | -85 | -76 | -67 | -58 | -49 | -40 | -31 | -22 | -13 | -4 | 5 | 14 | 23 | 32 | 41 | 50 | 59 | 68 | 77 | 86 | 95 | |||||||||||||||||||||||||||||||||||||||||
| GTG (Eddy Dissipation Rate) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| L | MOD | SEV | E | Heavy | |||||||
LGT | MOD | SEV | EXTRM | Medium | |||||||
| L | MOD | SEV | EXTRM | Light | |||||||
| 10 | 20 | 40 | 60 | 80 | 100 | ||||||
| (m2/s3)1/3 × 100 | |||||||||||
| LLWS (/s) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0 | .06 | .12 | .18 | .24 | .3 | ||||
| Terrain |
|---|
| Below Surface |
SIGMET
| Conv- ective |
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| Thunder storm |
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| Trop Cyclone |
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| Blowing Dust/Sand |
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| Volcanic Ash |
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Turb |
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Icing |
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G-AIRMET/AIRMET
| Sfc Wind |
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LLWS |
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| Turb High |
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| Turb Low |
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| Frz Lvl |
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Icing |
|---|
| Mtn Obsc |
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| Cig/Vis (IFR) |
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NWS Warnings
Tornado |
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| Severe TS |
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| Winter Storm |
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Blizzard |
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| Ice Storm |
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| Lake Effect Snow |
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Storm |
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Gale |
|---|
| High Wind |
|---|
Weather Symbols
| Symbol | Station code | Description |
|---|---|---|
| Rain and Snow | ||
| -RA | Light Rain | |
| RA | Moderate Rain | |
| +RA | Heavy Rain | |
| -FZRA | Light Freezing Rain | |
| FZRA +FZRA | Moderate to Heavy Freezing Rain | |
| -RASN | Light Rain and Snow | |
| RASN +RASN | Moderate to Heavy Rain and Snow | |
| -SN | Light Snow | |
| SN | Snow | |
| +SN | Heavy Snow | |
| BLSN | Blowing Snow | |
| DRSN | Drifting Snow | |
| SG | Snow Grains | |
| IC | Ice Crystals | |
| PE PL | Ice Pellets | |
| Showers and Storms | ||
| -SHRA | Light Rain Showers | |
| SHRA +SHRA | Moderate to Heavy Rain Showers | |
| -SHRASN | Light Rain and Snow Showers | |
| SHRASN +SHRASN | Moderate to heavy rain and snow showers | |
| -SHSN | Light Snow Showers | |
| SHSN +SHSN | Moderate to heavy snow showers | |
| -GR | Light showers with hail, not with thunder | |
| GR | Moderate to heavy showers with hail, not with thunder | |
| VCSH | Vicinity showers | |
| VCTS | Vicinity thunderstorm | |
| VCTSRA | Vicinity thunderstorm with rain | |
| TS | Thunderstorm with or without precipitation | |
| TSRA | Thunderstorm with light to moderate rain | |
| +TSRA | Thunderstorm with heavy rain | |
| TSGR | Thunderstorm with light to moderate hail | |
| TSSN | Thunderstorm with light to moderate snow | |
| SQ | Squalls | |
| FC | Funnel Cloud or Tornado |
| Symbol | Station code | Description |
|---|---|---|
| Fog and Mist | ||
| BR | Mist or Light Fog | |
| FG | Fog, sky indiscernible | |
| MIFG | More or less continuous shallow fog | |
| VCFG | Vicinity Fog | |
| BCFG | Patchy Fog | |
| PRFG | Fog, sky discernable | |
| FZFG | Freezing Fog | |
| -DZ | Light Drizzle | |
| DZ | Drizzle | |
| +DZ | Heavy Drizzle | |
| -FZDZ | Light Freezing Drizzle | |
| FZDZ +FZDZ | Moderate to heavy freezing drizzle | |
| -DZRA | Light drizzle and rain | |
| DZRA | Moderate to heavy drizzle and rain | |
| VIRGA | Virga or precipitation not hitting ground | |
| Dust, Sand, Other | ||
| FU VA | Smoke or Volcanic Ash | |
| HZ | Haze | |
| DU SA | Dust or Sand | |
| BLDU/BLSA | Blowing Dust/Blowing Sand | |
| PO | Dust Devil | |
| VCSS | Vicinity Sand Storm | |
| SS | Sand Storm | |
| +SS | Strong Sand Storm | |
| UP | Unknown Precipitation/Weather |
Pilot Reports
| Symbol | Description |
|---|---|
| Turbulence not encountered | |
| Smooth-light turbulence | |
| Light turbulence | |
| Light-moderate turbulence | |
| Moderate turbulence | |
| Moderate-severe turbulence | |
| Severe turbulence | |
| Extreme turbulence | |
| Low-level wind shear |
| Symbol | Description |
|---|---|
| Icing not encountered | |
| Trace icing | |
| Trace to light icing | |
| Light icing | |
| Light to moderate icing | |
| Moderate icing | |
| Moderate to severe icing | |
| Severe icing | |
| Other |
Prog chart (fronts)
| Symbol | Description |
|---|---|
| Cold front (dashed: frontogenesis/frontolysis) | |
| Warm front (dashed: frontogenesis/frontolysis) | |
| Stationary front | |
| Occluded front | |
| Trough | |
| Dry line | |
| Squall | |
| Hurricane / tropical storm |
Navigational aids
| Symbol | Name | Description |
|---|---|---|
| VOR | VHF omnidirectional range | |
| DME | Distance measuring equipment | |
| VOR/DME | Co-located VOR and DME | |
| TACAN | Tactical air navigation system | |
| VORTAC | Co-located VOR and TACAN | |
| NDB | Non-directional beacon | |
| Fix | Other navigation fix |
Map features
| Symbol | Name |
|---|---|
| Stadium | |
| Tall obstacle | |
| Medium or small obstacle | |
| Wind farm | |
| Mountain | |
| Volcano | |
| Pass | |
| Camera |