Severe Storms Threaten Argentina On Tuesday & Tuesday Night

Severe thunderstorms are expected to erupt across Argentina during the midday and afternoon hours on Tuesday. Some of the severe storms are likely to push into Uruguay and far southern Brazil Tuesday night.

The Details

A disturbance will move off of the Andes Mountains and across Argentina on Tuesday. The disturbance will run into an unstable environment which will trigger the development of strong to severe thunderstorms.

Severe thunderstorm potential Tuesday and Tuesday night

The greatest risk for severe thunderstorms will be east of the Andes Mountains and include cities such as Cordoba and Rosario. In this area, damaging winds are the primary concern. However, frequent lightning and localized flash flooding can accompany any storm.

Buenos Aires will lay on the southern edge of the severe thunderstorm potential, with the greatest threat for severe weather expected just to the north.

On Tuesday evening into Tuesday night the severe risk will shift into parts of Uruguay and far southern Brazil.

A few lingering showers or thunderstorms will extend into Wednesday morning, but this these storms are not expected to be severe.

Beijing Sees Wettest Day In Six Months; Rain Targets Korean Peninsula Next

Low pressure moving across eastern China has brought Beijing its wettest day in more than six months. The heavy rain will target the Korean Peninsula through Monday.

The Details:

Beijing picked up 27.2 mm of rain on Saturday, which is the most rain in the city since October 10th, 2017 when 52 mm of rain fell. The rain has now ended across most of the metro area.

Steady to heavy rain will spread across the Yellow Sea on Sunday and move into the Korean Peninsula on Monday.

The swath of heaviest rain is expected to setup from just south of Beijing eastward across the Yellow Sea and through South Korea. 50-100 mm of rain is expected in this corridor over a 24-36 hour period of time.

Rainfall setup this weekend into early next week

Monday is expected to be a rainy day across South Korea as low pressure moves across the country. Some flooding is possible in the areas of heaviest rain, including around Seoul.

As low pressure moves into the Sea of Japan on Tuesday, it will weaken and consolidate with a stronger low farther south.

Below is a model animation showing expected rainfall totals from Saturday afternoon through Tuesday.

No Relief for Drought-Ravaged Areas of the High Plains

 

Wildfires raged out of control on Tuesday across parts of the Plains, especially Oklahoma, Kansas, and Colorado. The system responsible for high winds and hot temperatures has moved off to the east. However, soil conditions will remain dangerously low thanks to more than six months of little to no precipitation. This is particularly true from southwest Kansas through the Panhandles to northeastern New Mexico. Other than 0.24″ of rain recorded on March 27th, Amarillo has seen no measurable precipitation since early October.

 

This kind of extended drought creates an abundance of dry tinder, plant and other debris that ignites easily. Any increase in winds and/or temperature means an extreme wildfire threat. Minor brush fires quickly grow beyond the ability to be controlled. The graphics at bottom reflect the forecast for the next few weeks with a decent chance of some passing rain. Still, minor moderation of the drought won’t diminish the wildfire threat significantly. Indeed, lightning-bearing storms have been known to spark wildfires in sensitive conditions.

 

 

 

Choking Dust in the Air Across the U.S. Plains Thanks to High Winds and Drought

 

High winds are whipping up dust and smoke across the High Plains today. You can distinguish the brown-colored dust in the satellite loop below especially from eastern Colorado into western Kansas. You can also see the grayish wildfire plumes in northwestern Oklahoma, the Texas panhandle, and near the Kansas-Colorado border.

 

 

Temperatures have soared to near 100 degrees this afternoon in portions of northwest Texas and western Oklahoma. Adding to the blowtorch effect are winds gusting commonly in the 60-70 mph range (see graphic below). A gust to 100 mph was recorded at Burlington, CO earlier! This combination of hot and dry air with high winds has made for a lethal wildfire threat. In addition, wind-blown dust can drive visibilities down to near zero, creating hazardous driving conditions.

 

 

 

The ground will remain dangerously dry in this region thanks to months of below normal or no precipitation. However, the system responsible for the high winds and heat will move east. The fire danger should diminish somewhat for Wednesday.