Tropical Storm Alvin Forming Northeast Pacific

Tropical Storm Alvin Forming 0500 Hours May 29 2019
Tropical Storm Alvin Forming 0500 Hours May 29 2019
Tropical Storm Alvin Satellite Forming 0500 Hours May 29 2019
Tropical Storm Alvin Satellite Forming 0500 Hours May 29 2019

Tropical Storm Alvin Forming Northeast Pacific –  NWS National Hurricane Center Miami FL 500 AM PDT Wed May 29 2019

For the eastern North Pacific…east of 140 degrees west longitude:

1. A trough of low pressure (see Saturday video below) located a few hundred miles south of the southern coast of Mexico continues to produce disorganized showers and thunderstorms. Some slow development of this system is possible during the next few days while it moves slowly northeastward.

Regardless of development, this system will likely bring areas of heavy rain to southern Mexico and portions of Central America throughout this week and into the weekend.

* Formation chance through 48 hours…low…10 percent. * Formation chance through 5 days…low…20 percent.

NWS National Hurricane Center Miami FL 1100 AM PDT Tue May 28 2019

For the eastern North Pacific…east of 140 degrees west longitude:

A large area of disorganized showers  and thunderstorms located a few hundred miles south of the coast of southern Mexico is associated with a trough of low pressure. Some gradual development of this system is possible during the next several days as it moves slowly northeastward.

* Formation chance through 48 hours…low…10 percent. * Formation chance through 5 days…low…20 percent.

NWS National Hurricane Center Miami FL 500 AM PDT Mon May 27 2019

For the eastern North Pacific…east of 140 degrees west longitude:

1. Disorganized showers  and thunderstorms over portions of Costa Rica, Nicaragua, and the far eastern Pacific are associated with an elongated area of low pressure. Significant development of this system appears unlikely before it moves inland over Central America by midweek.

Regardless of development, locally heavy rains are likely to continue over portions of Central America during the next several days. These rains could cause flash flooding and mudslides in areas of mountainous terrain.

* Formation chance through 48 hours…low…10 percent. * Formation chance through 5 days…low…10 percent.

NWS National Hurricane Center Miami FL 1100 AM PDT Sun May 26 2019

For the eastern North Pacific…east of 140 degrees west longitude:

1. An elongated area of low pressurelocated over the far eastern Pacific continues to produce disorganized cloudiness and shower activity over Central America and the adjacent Pacific waters. Any development of this system during the next several days should be slow to occur due to its proximity to land and increasing upper-level winds.

Regardless of development, locally heavy rains are likely to continue over portions of Central America through this week while the system drifts northward. These rains could cause flash flooding and mudslides in areas of mountainous terrain.  * Formation chance through 48 hours…low…10 percent. * Formation chance through 5 days…low…20 percent.

NWS National Hurricane Center Miami FL 500 PM PDT Sat May 25 2019

For the eastern North Pacific…east of 140 degrees west longitude:

1. An elongated area of low pressure  is producing disorganized cloudiness and shower activity over the far eastern Pacific. This broad disturbance has become poorly defined since yesterday, and environmental conditions are expected to gradually become less conducive for tropical cyclone formation over the next few days.

Regardless of development, locally heavy rains are likely to continue over portions of Central America into early next week. These rains could cause flash flooding and mudslides in areas of mountainous terrain.

* Formation chance through 48 hours…low…20 percent. * Formation chance through 5 days…low…30 percent.

NWS National Hurricane Center Miami FL 500 AM PDT Sat May 25 2019

For the eastern North Pacific…east of 140 degrees west longitude:

1. Disorganized showers  and thunderstorms continue along a trough of low pressure that extends from Nicaragua westward over the far eastern Pacific. This system is expected to move little during the next few days, and some gradual development is possible while the disturbance remains offshore. Regardless of development, locally heavy rains are likely to continue over portions of Central America into early next week. These rains could cause flash flooding and mudslides in areas of mountainous terrain.
* Formation chance through 48 hours…low…30 percent.
* Formation chance through 5 days…medium…40 percent.

NWS National Hurricane Center Miami FL 1100 AM PDT Fri May 24 2019

For the eastern North Pacific…east of 140 degrees west longitude:

1. A trough of low pressure  located over the far eastern Pacific continues to produce disorganized showers and thunderstorms. Some gradual development of this system is possible while it moves little during the next few days. Regardless of development, locally heavy rains are likely to continue over portions of Central America through the weekend. These rains could cause flash flooding and mudslides in areas of mountainous terrain.

* Formation chance through 48 hours…low…30 percent. * Formation chance through 5 days…medium…40 percent.

NWS National Hurricane Center Miami FL 1100 AM PDT Thu May 23 2019

For the eastern North Pacific…east of 140 degrees west longitude:

1. Showers and thunderstorms  associated with a broad area of low pressure over Central America have become less organized since yesterday. Any development of this system during the next few days should be slow to occur while the large circulation interacts with land.

Regardless of development, locally heavy rains are likely to continue over portions of Central America as this system remains nearly stationary through the weekend. These rains could cause flash flooding and mudslides in areas of mountainous terrain.

* Formation chance through 48 hours…low…10 percent. * Formation chance through 5 days…low…30 percent.

  

NWS National Hurricane Center Miami FL 500 AM PDT Thu May 23 2019

For the eastern North Pacific…east of 140 degrees west longitude:

1. Disorganized showers  and thunderstorms along portions of the west coast of Central America and the far eastern North Pacific are associated with a broad area of low pressure. Earlier satellite wind data indicated that the large circulation has moved inland over Central America and the chance for development has decreased.

Regardless of development, locally heavy rains are likely to continue over portions of Central America as this system remains nearly stationary during the next few days. These rains could cause flash flooding and mudslides in areas of mountainous terrain.

* Formation chance through 48 hours…low…20 percent. * Formation chance through 5 days…medium…40 percent.

NWS National Hurricane Center Miami FL 1100 AM PDT Wed May 22 2019

For the eastern North Pacific…east of 140 degrees west longitude:

1. An area of low pressure located just off the west coast of Nicaragua continues to produce disorganized showers and thunderstorms. This system is expected to meander over the far eastern North Pacific, and gradual development is possible during the next several days if the disturbance remains offshore.

Regardless of development, this system is likely to produce locally heavy rains over portions of Central America during the next few days. These rains could cause flash flooding and mudslides in areas of mountainous terrain.

* Formation chance through 48 hours…low…30 percent. * Formation chance through 5 days…medium…50 percent.

 

NWS National Hurricane Center Miami FL 500 AM PDT Wed May 22 2019

For the eastern North Pacific…east of 140 degrees west longitude:

1. An area of low pressure located just off the west coast of Nicaragua continues to produce disorganized showers and thunderstorms. This system is expected to meander over the far eastern North Pacific, and gradual development is possible during the next several days if the disturbance remains offshore.

Regardless of development, this system is likely to produce areas of heavy rain over portions of Central America during the next few days. These rains could cause flash flooding and mudslides in areas of mountainous terrain. *

Formation chance through 48 hours…low…20 percent. * Formation chance through 5 days…medium…50 percent.

NWS National Hurricane Center Miami FL 500 PM PDT Tue May 21 2019

For the eastern North Pacific…east of 140 degrees west longitude:

1. A weak area of low pressure located a couple of hundred miles south of the coast of El Salvador continues to produce disorganized shower activity.

Gradual development of this system is possible late this week and this weekend while the disturbance meanders over the far eastern North Pacific.

Regardless of development, this system is likely to produce areas of heavy rain over portions of Central America during the next few days.

* Formation chance through 48 hours…low…10 percent. * Formation chance through 5 days…medium…50 percent.

NWS National Hurricane Center Miami FL 1100 AM PDT Tue May 21 2019

For the eastern North Pacific…east of 140 degrees west longitude:

1. Disorganized showers and thunderstorms continue  in association with a broad area of low pressure located a few hundred miles south of Guatemala and El Salvador.

Gradual development of this system is possible later this week while the disturbance meanders over the far eastern North Pacific.

* Formation chance through 48 hours…low…10 percent. * Formation chance through 5 days…medium…50 percent.

NWS National Hurricane Center Miami FL 500 AM PDT Tue May 21 2019

For the eastern North Pacific …east of 140 degrees west longitude:

1. Disorganized showers and thunderstorms continue in association with a broad area of low pressure located a few hundred miles south of Guatemala and El Salvador.

Some gradual development of this system is possible later this week while the disturbance meanders over the far eastern North Pacific. If this storm is named, it will become Tropical Storm Alvin.

* Formation chance through 48 hours…low…10 percent. * Formation chance through 5 days…medium…50 percent.

Article Resources:

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Video:SEVERE STORM CENTRAL AMERICA NICARAGUA TO COSTA RICA (25 May 2019)

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