- https://codes.nws.noaa.gov
- NWSI-10-811
- _HazardTypes
stable
Register: Hazard Types
URI: https://codes.nws.noaa.gov/NWSI-10-811/HazardTypes
An AIRMET/G-AIRMET can be issued when any of the following weather phenomena is affecting, or in the judgment of the forecaster, is expected to affect an area having a significant impact on the safety of aircraft operations.
Core metadata
| is a | Container | Collection | Register |
| changed on | 15 Apr 2025 13:06:02.424 |
| submitted by | nws code registry administrator |
| accepted on | 7 May 2020 20:16:48.999 |
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All properties of the register
| description |
An AIRMET/G-AIRMET can be issued when any of the following weather phenomena is affecting, or in the judgment of the forecaster, is expected to affect an area having a significant impact on the safety of aircraft operations.
|
| label |
Hazard Types
|
| member |
Turbulence (High Level)
| Turbulence
| Surface Wind
| Low-Level Wind Shear
| Freezing Level
| Instrument Flight Rules
| Icing
| Multiple Freezing Levels
| Mountain Obscuration
| Turbulence (Low Level)
|
| modified |
15 Apr 2025 13:06:02.424
|
| notation |
HazardTypes
|
| type |
Container
| Collection
| Register
|
| version info |
13
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Contents
| Name | Notation | Description | Types | Status |
|---|---|---|---|---|
| Freezing Level | FreezingLevel | Moderate icing at altitude | Concept | stable |
| Instrument Flight Rules | IFR | Cloud ceilings less than 1000 feet AGL and/or horizontal visi... | Concept | stable |
| Icing | Icing | Moderate icing is expected | Concept | stable |
| Low-Level Wind Shear | LowLevelWindShear | Non-convective low-level wind shear potential below 2000 feet... | Concept | stable |
| Mountain Obscuration | MountainObscuration | Widespread mountain obscuration due to one or more of the fol... | Concept | stable |
| Multiple Freezing Levels | MultipleFreezingLevels | When applicable, two or more altitudes where freezing precipi... | Concept | stable |
| Surface Wind | SurfaceWind | Sustained surface wind greater than 30 knots | Concept | stable |
| Turbulence | Turbulence | Altitude which moderate turbulence is expected/occurring | Concept | stable |
| Turbulence (High Level) | TurbulenceHighLevel | High altitudes which moderate to severe turbulence is expecte... | Concept | stable |
| Turbulence (Low Level) | TurbulenceLowLevel | Low altitudes which moderate to severe turbulence is expected... | Concept | stable |