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#DustStorm

5 posts4 participants2 posts today
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TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

It was a dynamic weather day in New Mexico.

This weather satellite loop shows us a variety of activity:

- overall west-to-east flow of dry air in the western half of New Mexico. This dry air is not very dusty, at least not initially.

- moist air over the eastern half, which tends to be hazier. This haziness is seen best near the end of the loop when the sun angle gets low.

- strong thunderstorms developing along the dry line

- outflows and gust fronts from the storms raising dust and pushing it east against the flow of the dry air

- strong breezes in northeast Sonora, Mexico boost fire activity. The bluish smoke plume becomes visible near the end of the loop. The strong breezes also pick up dust at the end of the loop...colored tan/brown

- the moist air can't push further west because the terrain gets higher.

This is a follow up to an earlier post/toot about the Dry Line weather system:
universeodon.com/@KrajciTom/11

GIF
#NewMexico#NMwx#Thunderstorms
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TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

A localized dust storm is kicked up by low-level outflow that races ahead of a cold front in southern New Mexico.

This is an animation loop from visible light weather satellite images, overlayed with composite radar, 500mb isobars and wind barbs, and county boundaries and highways.

The screengrab is annotated to show the direction of motion and the low-level outflow boundary that kicks up lots of desert dust. (This screengrab is taken from one of the later frames in the animation loop.)

You probably have to watch the loop more than once to see the subtle initial appearance of the low-level outflow boundary and dust...that becomes all too obvious by the end of the animation loop.

[Edit/add: METAR history (final screengrab) for Alamogordo showing how visibility went to hell as the outflow and dust storm moved into the area.

metar-taf.com/history/Kalm ]

GIF
This screen grab, from one of the later frames in the animation loop, shows the dust getting kicked up by a low-level outflow that races ahead of a frontal passage.
Edit/add: METAR history for Alamogordo showing how visibility went to hell as the outflow and dust storm moved into the area. https://metar-taf.com/history/Kalm
#NewMexico#NMwx#Dust
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TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

Dust storm and many wind driven fires in the southwest US. Same song, 22nd verse.

One fire is about a half hour drive from me:
app.watchduty.org/i/44174

"Emergency personnel were juggling road closures due to dust storms and high winds—San Augustin Pass, just east of Las Cruces, reported a gust at 93 mph.

US Highway 54 was briefly closed from the southern Otero County line near El Paso to the northern Otero County and Lincoln County lines due to high winds, blowing dust and vehicle wrecks. Crews could be heard over the radio leaving an accident on Highway 54 to head towards the Mayhill-adjacent fire.

The Otero County Electric Cooperative (OCEC) reported dozens of outages affecting thousands of customers from Timberon to Carrizozo. Line crews are working on restoring power to the affected areas."

cloudcroftreader.com/p/gail-fi

Dust storm over southern New Mexico, Texas, Mexico, and more...evening of 18 March.
Several wind driven fires are active in New Mexico today.
#NewMexico#NMwx#Texas
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