The map is displaying the highest freezing level in feet MSL (there may be more than one freezing level).
Text in white indicates rawindsonde data, text in yellow indicates ACARS data.
Shading: Surface to 5,000ft to 15,000ft
Click on the locations to get more information. |
The map is displaying altimeter readings in inches of mercury.
Shading: 29.5" to 30.0" to 30.5"
Click on the locations to get more information. |
The map is displaying sea level pressure readings in millibars.
Shading: 990mb to 1010mb to 1030mb
Click on the locations to get more information. |
The map is displaying temperature in °F.
Shading: 0°F to 50°F to 100°F
Click on the locations to get more information. |
The map is displaying dew point temperature in °F.
Shading: -10°F to 30°F to 70°F
Click on the locations to get more information. |
The map is displaying surface winds in knots.
Shading: Calm to 10kt to 20kt
Click on the locations to get more information. |
The map is displaying ceiling heights in hundereds of feet.
Shading: 400ft to 1000ft to 3000ft
Click on the locations to get more information. |
The map is displaying visibilities in statute miles.
Shading: 0sm to 3sm to 6sm
Click on the locations to get more information. |
The map is displaying the weather, color-coded based on the following hierarchy:
| Convective Related | TS GR GS SQ FC |
| Winter Precipitation | FZ SG SN IC PL UP |
| Smoke/Sand/Dust/Ash | FU SA DU PO DS SS VA |
| Liquid Precip | RA DZ |
| Fog/Haze/Spray | BR FG HZ PY |
| Other | Other |
Click on the locations to get more information. |
The map is displaying flight categories based on the following color scheme.
| Flight Category | Visibility (sm) | | Ceiling (ft) |
| VLIFR | <1/2 | and/or | <200 |
| LIFR | 1/2 to <1 | and/or | 200 to <500 |
| IFR | 1 to <3 | and/or | 500 to <1000 |
| MVFR | 3 to 5 | and/or | 1000 to 3000 |
| VFR | >5 | and | >3000 to <5000 |
| VFR | >5 | and | ≥5000 |
Click on the locations to get more information. |
Click on the push pin to get the highest freezing level in feet.
Light blue push pins indicate rawindsonde data, dark blue indicate ACARS data.
Click on the locations to get more information. |
Click on the push pin to select the vertical wind profile.
2,000, 10,000, and 20,000 feet are available.
Click on the locations to get more information. |
Click on the ID to select the vertical wind profile.
2,000, 10,000, and 20,000 feet are available. |
The push pins above indicate the flight categories. Click for more information.
| White push pins indicate unavailable/unknown flight category. |
| Flight Category | Visibility (sm) | | Ceiling (ft) |
| LIFR | <1 | and/or | <500 |
| IFR | 1 to <3 | and/or | 500 to <1000 |
| MVFR | 3 to 5 | and/or | 1000 to 3000 |
| VFR | >5 | and | >3000 |
Click on the locations to get more information. |
The map is displaying all PIREPs (icon based on the following hierarchy):
 | Severe Turbulence |
 | Severe Clear Icing |
 | Severe Mixed Icing |
 | Severe Rime Icing |
 | Severe Chop |
 | Moderate-Severe Turbulence |
 | Moderate-Severe Clear Icing |
 | Moderate-Severe Mixed Icing |
 | Moderate-Severe Rime Icing |
 | Moderate-Severe Chop |
 | Moderate Turbulence |
|
 | Moderate Clear Icing |
 | Moderate Mixed Icing |
 | Moderate Rime Icing |
 | Low-Level Wind Shear |
 | Light-Moderate Turbulence |
 | Light-Moderate Clear Icing |
 | Light-Moderate Mixed Icing |
 | Light-Moderate Rime Icing |
 | Moderate Chop |
 | Light Turbulence |
 | Light-Moderate Chop |
|
 | Light Clear Icing |
 | Light Mixed Icing |
 | Light Rime Icing |
 | Light Chop |
 | Smooth |
 | No Icing |
 | Unknown / General PIREP |
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Click on the PIREP icons to get more information. |
The map is displaying icing PIREPs using the following icons:
| | Severe Clear Icing |
| | Severe Mixed Icing |
| | Severe Rime Icing |
| | Moderate-Severe Clear Icing |
| | Moderate-Severe Mixed Icing |
| | Moderate-Severe Rime Icing |
| | Moderate Clear Icing |
| | Moderate Mixed Icing |
| | Moderate Rime Icing |
|
| | Light-Moderate Clear Icing |
| | Light-Moderate Mixed Icing |
| | Light-Moderate Rime Icing |
| | Light Clear Icing |
| | Light Mixed Icing |
| | Light Rime Icing |
| | No Icing |
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Click on the PIREP icons to get more information. |
The map is displaying turbulence PIREPs using the following icons:
| | Severe Turbulence |
| | Severe Chop |
| | Moderate-Severe Turbulence |
| | Moderate-Severe Chop |
| | Moderate Turbulence |
| | Low-Level Wind Shear |
|
| | Light-Moderate Turbulence |
| | Moderate Chop |
| | Light Turbulence |
| | Light-Moderate Chop |
| | Light Chop |
| | Smooth |
|
Click on the PIREP icons to get more information. |
The map is displaying other PIREPs (no known turbulence/icing).
Click on the PIREP icons to get more information. |
The map is displaying Airmets, Sigmets, and CWAs, based on the following color scheme:
IFR
Mountain Obscuration
High-Level Turbulence
Low-Level Turbulence
Surface Wind
Icing
Convective
Volcanic Ash
CWA
Click on the shaded areas to get more information. |
The map is displaying the color-coded flight categories from METARs, courtesy Oakland CWSU:
| METAR | Category | Ceiling (ft) |
 | LIFR | <500 |
 | IFR | 500 to <1000 |
 | MVFR | 1000 to 3000 |
 | VFR | >3000 |
Click on the locations to get the full observation. Note that the valid time of Oakland CWSU products may not match the Seattle CWSU products. |
The map is displaying cloud thicknesses and color-coded flight categories from PIREPs, courtesy Oakland CWSU:
 |
| PIREP | Category | Ceiling (ft) |
 | LIFR | <500 |
 | IFR | 500 to <1000 |
 | MVFR | 1000 to 3000 |
 | VFR | >3000 |
 | Top Only | <10000 |
Click on the icons or areas to get more information. Note that the valid time of Oakland CWSU products may not match the Seattle CWSU products. |
courtesy Oakland CWSU
Click on the areas to get more information. Note that the valid time of Oakland CWSU products may not match the Seattle CWSU products. |
courtesy Oakland CWSU
Click on the areas to get more information. Note that the valid time of Oakland CWSU products may not match the Seattle CWSU products. |
The map is displaying the SPC Day 1 Convective Outlook:
Green is the General Thunderstorm area,
Tan is the Slight Risk area,
Red is the Moderate Risk area, and
Purple is the High Risk area.
The area is to the right of the line, with the start of the line marked by an asterisk (*).
Click on the line for more information.
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The map is displaying the SPC Watches (using the simplified parallelogram rather than by county/parish):
Blue is Severe Thunderstorm and
Red is Tornado.
Click on the area for more information.
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The map is displaying the latest 6hr QPF from HPC.
Click on the area for more information.
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The map is displaying the HPC Surface Analysis:
Blue is a Cold Front,
Red is a Warm Front,
Gray is a Stationary Front,
Purple is an Occluded Front, and
Tan is a Trough.
Click on the Front, High, or Low for more information.
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The map is displaying the Convective Collaborative Forecast Product (CCFP) from AWC:
Blue is a High Confidence Area,
Gray is a Low Confidence Area, and
Purple is a Line of Thunderstorms.
Heavier shading of areas and brigher lines indicate higher coverage.
Click on the area or line for more information.
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The map is displaying data from provided by the Charleston WV office.
The colors scheme from low to high is Cyan - Green - Yellow - Orange - Red.
Click on the colored squares for more information.
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