Home (Blowing dust)
Home  
 
 
Home » Meteorology » Blowing dust


 

Blowing dust

Meteorology BlowingBlowing Sand

blowing dust"Dust picked up locally from the surface of the earth and blown about in clouds or sheets. It is classed as a lithometeor and is encoded BLDU as an obstruction to vision in an aviation weather observation (METAR).

 


BLOWING DUST: Reduction of visibility by strong winds blowing across dry ground with little or no vegetation. Visibilities of 1/8 mile or less over a widespread area are criteria for a Blowing Dust Advisory.

Blowing Dust- dust that is raised by the wind to moderate heights above the ground to a degree that horizontal visibility decreases to less than seven miles.
Blowing Snow- wind blown snow that reduces horizontal visibility.

BLOWING DUST OR SAND - Small particles of dust or sand which are caused by strong winds blowing over dry ground, that has little or no vegetation.
BLOWING SNOW - Wind-driven snow which reduces surface visibility.

BLOWING DUST Dust that is raised by the wind to heights of six feet or greater. It is reported as "BLDU" in an observation and on the METAR.

blowing dust—A type of lithometeor composed of dust particles picked up locally from the surface and blown about in clouds or sheets.

Blowing Dust (BLDU) Wind-driven dust that significantly reduces surface visibility to less than 7 miles.
Blowing Snow (BLSA) Wind-driven sand that significantly reduces surface visibility to less than 7 miles.

Blowing Dust or Sand
Strong winds over dry ground, that has little or no vegetation, can lift particles of dust or sand into the air.

Blowing Dust: Gone with the Wind
Rating Tornadoes: The Enhanced Fujita Scale
Fujita Tornado Intensity Scale
Tornado Outbreaks: Twisters En Masse
Twister Rides
Foreign Tornadoes
Tornadoes of Europe
Tornadoes of Asia
Tornadoes of Africa ...

(Blowing dust and rising temperatures also may follow, especially if the dry line passes during the daytime. These changes occur in reverse order when the dry line retreats westward.

(Blowing dust and rising temperatures also may follow, especially if the dry line passes during the daytime. These changes occur in reverse order when the dry line retreats westward.

(Blowing dust and rising temperatures also may follow, especially if the dry line passes during the daytime. These changes occur in reverse order when the dry line retreats westward.

(Blowing dust and rising temperatures also may follow, especially if the dry line passes during the daytime. These changes occur in reverse order when the dry line retreats westward.

(Blowing dust and rising temperatures also may follow, especially if the dry line passes during the daytime; see dry punch). The dry line's eastward movement at the surface is often not as fast as it is aloft.

After the thunderstorm gust front passes and before precipitation, if any, arrives, blowing dust often is kicked up by thunderstorm induced winds. The amount of dust depends on soil type, soil moisture content, and wind intensity.

NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Blowing Dust or Sand, FG, fog, Grout Curtain, Ice Crystals, k, MIST, sm, Smoke
Also listed in
All > Technology > Defense ...

(Blowing dust and rising temperatures also may follow, especially if the dry line passes during the daytime; see dry punch). These changes occur in reverse order when the dry line retreats westward.

A possible explanation is that fast-moving blowing dust particles generated static electricity, which ignited organic matter carried along with the dust.

Dry Microburst - a microburst with little or no precipitation reaching the ground; most common in semi-arid regions; at the ground, the only visible sign might be a dust plume or a ring of blowing dust beneath a local area of virga ...

pattern; visible signs may include a cumulus cloud or small Cb with a high base and high-level virga, or perhaps only an orphan anvil from a dying rain shower. At the ground, the only visible sign might be a dust plume or a ring of blowing dust ...

(Blowing dust and rising temperatures also may follow, especially if the dry line passes during the daytime; see dry punch). These changes occur in reverse order when the dry line retreats westward.

(Blowing dust and rising temperatures also may follow, especially if the dry line passes during the daytime; see dry punch). These changes occur in reverse order when the dry line retreats westward.

(Blowing dust and rising temperatures also may follow, especially if the dry line passes during the daytime). These changes occur in reverse order when the dry line retreats westward.

Blowing Dust: Dust pick up and blown about by the wind.
Blowing Sand: Sand pick up and blown about by the wind.
Blowing Snow:Snow lifted to 6 feet or more above the surface of the ground.
Blowing Spray: Water pick up and blown about by the wind.

See also: Dust, Storm, Air, Thunderstorm, Thunder