tropical depression harvey

TROPICAL DEPRESSION HARVEY FORMS

TROPICAL DEPRESSION HARVEY FORMS

 

TROPICAL DEPRESSION HARVEY FORMS HURRICANE & STORM SURGE WATCHES POSTED

storm free

An Air Force plane this morning found winds of 35 to 40 knots at flight level and a closed circulation which means that Tropical Depression Harvey has reformed in the Gulf of Mexico and is likely to strengthen to a tropical storm later today or tonight. Convection continues to increase and it is getting a more circular look to it on the satellite presentation.

storm free

Looking at the water vapor loop there is an upper low in the Northwest Gulf of Mexico that continues to weaken and move northwestward. This is creating a more favorable environment for strengthening over the next few days. Harvey could become a strong tropical storm or a hurricane before it reaches the Texas coast.

storm free

The major issue with Harvey is going to be flooding rains that will result. All weather model guidance show Harvey slowing down to a crawl or even stalling along the Texas coast this weekend. This sets the stage for 1 foot plus rains from Coastal and East Texas into Louisiana. The GFS has an aggressive looking rainfall forecast for Harvey through next Tuesday.

tropical depression harvey

..HARVEY REGENERATES INTO A TROPICAL DEPRESSION…
…HURRICANE AND STORM SURGE WATCHES ISSUED FOR PORTIONS OF THE
TEXAS COAST…

 

SUMMARY OF 1000 AM CDT…1500 UTC…INFORMATION
———————————————–
LOCATION…21.5N 92.5W
ABOUT 535 MI…860 KM SSE OF PORT OCONNOR TEXAS
ABOUT 470 MI…755 KM SE OF PORT MANSFIELD TEXAS
MAXIMUM SUSTAINED WINDS…35 MPH…55 KM/H
PRESENT MOVEMENT…NW OR 310 DEGREES AT 9 MPH…15 KM/H
MINIMUM CENTRAL PRESSURE…1006 MB…29.71 INCHES

 

WATCHES AND WARNINGS
——————–
CHANGES WITH THIS ADVISORY:

A Storm Surge Watch has been issued for the coast of Texas from
Port Mansfield to High Island.

A Hurricane Watch has been issued for the coast of Texas from north
of Port Mansfield to San Luis Pass.

A Tropical Storm Watch has been issued for the coast of Texas from
the Mouth of the Rio Grande to Port Mansfield and from north of
San Luis Pass to High Island.

The government of Mexico has issued a Tropical Storm Watch for the
coast of Mexico from Boca De Catan to the Mouth of the Rio Grande.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Watch is in effect for…
* Port Mansfield to High Island

A Hurricane Watch is in effect for…
* North of Port Mansfield to San Luis Pass

A Tropical Storm Watch is in effect for…
* Boca De Catan Mexico to Port Mansfield Texas
* North of San Luis Pass to High Island

A Storm Surge Watch means there is a possibility of life-
threatening inundation, from rising water moving inland from the
coastline, in the indicated locations during the next 48 hours.
For a depiction of areas at risk, please see the National Weather
Service Storm Surge Watch/Warning Graphic, available at
hurricanes.gov.

A Hurricane Watch means that hurricane conditions are possible
within the watch area. A watch is typically issued 48 hours
before the anticipated first occurrence of tropical-storm-force
winds, conditions that make outside preparations difficult or
dangerous.

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.

Interests in southwestern Louisiana should monitor the progress of
this system for possible watches this afternoon.

For storm information specific to your area in the United States,
including possible inland watches and warnings, please monitor
products issued by your local National Weather Service forecast
office. For storm information specific to your area outside the
United States, please monitor products issued by your national
meteorological service.

 

DISCUSSION AND 48-HOUR OUTLOOK
——————————
At 1000 AM CDT (1500 UTC), the center of Tropical Depression Harvey
was located near latitude 21.5 North, longitude 92.5 West. The
depression is moving toward the northwest near 9 mph (15 km/h) and
a track toward the northwest or north-northwest is expected for the
next 48 hours. On the forecast track, Harvey should be approaching
the Texas coast late Friday.

Maximum sustained winds are near 35 mph (55 km/h) with higher gusts.
Some strengthening is forecast during the next 48 hours, and Harvey
could become a hurricane on Friday.

An Air Force Reserve Hurricane Hunter aircraft recently reported a
minimum central pressure of 1006 mb (29.71 inches).

 

HAZARDS AFFECTING LAND
———————-
RAINFALL: Harvey is expected to produce total rain accumulations of
10 to 15 inches with isolated maximum amounts of 20 inches over the
middle and upper Texas coast and southwest Louisiana through next
Tuesday, with heavy rainfall beginning as early as Friday morning.
Harvey is also expected to produce total rain accumulations of 3 to
9 inches in portions of south, central, and northeast Texas and the
rest of the lower Mississippi Valley. Rainfall from Harvey could
cause life-threatening flooding.

STORM SURGE: The combination of a dangerous storm surge and the tide
will cause normally dry areas near the coast to be flooded by rising
waters moving inland from the shoreline. The water is expected to
reach the following heights above ground if the peak surge occurs at
the time of high tide…

Port Mansfield to High Island…4 to 6 ft

The deepest water will occur along the immediate coast near and to
the northeast of the landfall location, where the surge will be
accompanied by large and destructive waves. Surge-related
flooding depends on the relative timing of the surge and the tidal
cycle, and can vary greatly over short distances. For information
specific to your area, please see products issued by your local
National Weather Service forecast office.

WIND: Hurricane conditions are possible within the hurricane watch
area by late Friday, with tropical storm conditions possible by
early Friday.

SURF: Swells generated by Harvey are likely to affect the Texas,
Louisiana, and northeast Mexico coasts by Friday. These swells are
likely to cause life-threatening surf and rip current conditions.
Please consult products from your local weather office.

 

MANY THANKS TO TROPICAL TIDBITS FOR THE WONDERFUL USE OF THE MAPS

 

Weather App

storm free

Don’t be without Meteorologist Joe Cioffi’s weather app. It is really a meteorologist app because you get my forecasts and my analysis and not some automated computer generated forecast based on the GFS model. This is why your app forecast changes every 6 hours. It is model driven with no human input at all. It gives you an icon, a temperature and no insight whatsoever.

It is a complete weather app to suit your forecast needs. All the weather information you need is right on your phone. Android or I-phone, use it to keep track of all the latest weather information and forecasts. This weather app is also free of advertising so you don’t have to worry about security issues with your device. An accurate forecast and no worries that your device is being compromised.

Use it in conjunction with my website and my facebook and twitter and you have complete weather coverage of all the latest weather and the long range outlook. The website has been redone and upgraded. Its easy to use and everything is archived so you can see how well Joe does or doesn’t do when it comes to forecasts and outlooks.

Just click on the google play button or the apple store button on the sidebar for my app which is on My Weather Concierge. Download the app for free. Subscribe to my forecasts on an ad free environment for just 99 cents a month.
Get my forecasts in the palm of your hand for less than the cost of a cup of Joe!

Liked it? Take a second to support joestradamus on Patreon!