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TTR Weekend Weather

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Through early afternoon isolated showers and a few thunderstorms will develop and move north across the Coastal Plains. Rainfall amounts will generally be between a tenth and a quarter of an inch. Some higher rainfall amounts around a half an inch are possible if storms track over the same area. Lightning and gusty winds will the main concerns with any thunderstorms that form.

Isolated showers and thunderstorms are possible across most areas for the upcoming weekend. Showers and thunderstorms will gradually become a little more widespread for the early and middle portion of next week as an upper level disturbance and cold front approach the region. Locally heavy rainfall is possible on Tuesday and Wednesday, mainly for areas west of the I-35 corridor.

Today
Mostly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the upper 80s. Southeast winds 5 to 10 mph.

Tonight Mostly clear. Lows in the lower 70s. East winds 5 to 10 mph.

Saturday Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs around 90. East winds 5 to 10 mph.

Saturday Night Partly cloudy. Lows in the lower 70s. East winds 5 to 10 mph.

Sunday Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the upper 80s. Southeast winds 5 to 10 mph.

Sunday Night Partly cloudy. Lows in the lower 70s.

Fire Weather Planning Forecast for South Central Texas
National Weather Service Austin/San Antonio TX
645 AM CDT Fri Sep 22 2017

.DISCUSSION…
Slight rain chances are expected across the coastal plains today
and continue through Saturday. Better chances for wetting rain
begin Monday into late next week with the approach of a large
upper trough and cold front. Until then afternoon relative
humidity values will remain above 30 percent across Central Texas.

Karnes-De Witt-Lavaca-
Including the cities of Karnes City, Cuero, and Halletsville
645 AM CDT Fri Sep 22 2017

Today Tonight Sat

Cloud cover PCldy PCldy PCldy
Chance precip (%) 20 10 20
Precip Type tstms NONE tstms
Temp (24h trend) 90 (-1) 72 (+1) 90
RH % (24h trend) 52 (+16) 99 (-1) 49
20ftWnd-AM(MPH) SE 6 E 6
20ftWnd-PM(MPH) SE 9 SE 8 SE 8
Mixing hgt(ft-AGL) 4978 6147
Transport wnd (MPH) SE 15 SE 16
CWR 10 0 0
LAL 2 2 2
Haines Index 3 3 3

Remarks…None.

Special Tropical Weather Outlook to add discussion of a new system over the central Atlantic.

The National Hurricane Center is issuing advisories on Post-Tropical Cyclone Jose, located a little over a hundred miles south-southeast of Nantucket, Massachusetts, and on Hurricane Maria, located just to the north of Grand Turk Island.

Updated: A small area of low pressure has developed over the central Atlantic Ocean almost a thousand miles east-southeast of Bermuda. The low is producing a concentrated area of showers and thunderstorms, although the circulation appears somewhat elongated. Some additional development of this system is possible during the
next few days while it moves slowly northward through early next week.

TTR Weekend Weather

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Fair weather is expected on Saturday. Then, chances of showers and thunderstorms return on Sunday and continue through the middle of next week. Temperatures will average near to slightly above normal.

Rest Of Today: Partly cloudy. Highs in the lower 90s. Southeast winds 5 to 10 mph.

Tonight: Partly cloudy. Lows in the lower 70s. Southeast winds 5 to 10 mph.

Saturday: Mostly cloudy in the morning then becoming partly cloudy. Highs in the lower 90s. Southeast winds 5 to 10 mph.

Saturday Night: Partly cloudy. Lows in the lower 70s. Southeast winds 5 to 10 mph.

Sunday: Partly cloudy in the morning then becoming mostly cloudy. A 30 percent chance of showers and thunderstorms. Highs around 90. East winds 5 to 10 mph.

Sunday Night: Mostly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid 70s.

Have a great weekend.

TTR Weekend Weather

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The Flood Warning continues for the Guadalupe River near Bloomington, affecting Calhoun, Refugio, and
Victoria Counties until Saturday afternoon…or until the warning is cancelled. At 8:00 AM Friday the stage was 20.7 feet. Flood stage is 20.0 feet. At 20.0 feet Minor lowland flooding occurs, with the flow reaching the right flood plain near the Invista Plant near Bloomington. Downstream above Highway 35, the flow escapes into the left flood plain cutting off the lowest homes. Forecast: The river will continue to fall and is expected to go below flood stage by tonight.

This hazardous weather outlook is for South Texas and the Middle Texas Coastal Waters.

Today and Tonight: Moderate Risk for Dangerous Rip Currents along gulf-facing beaches of the Middle Texas Coast. Small Craft Advisory in effect for the offshore waters 20NM to 60NM from Baffin Bay to Port O`Connor today due to high seas.

Saturday through Thursday: A moderate or high risk of rip currents may occur along Gulf- facing beaches Saturday. This condition may continue Sunday.

Late this afternoon, skies across the Lone Star State were mostly clear except for a patch of clouds across the southern tip of the state. Temperatures were largely in the 80s with a few areas in the upper 70s across the Rio Grande Valley. Winds were generally southeasterly at 5 to 10 MPH.

Finally, here is the forecast summary for South Central Texas.

Clear and cool tonight with low temperatures ranging from the lower 50s in the Hill Country to the mid and upper 60s along the Rio Grande. Dry weather and below normal temperatures are in store for the remainder of this week into early next week across South Central Texas.

Tonight Clear. Lows in the lower 60s. Northeast winds 5 mph.

Saturday Sunny. Highs in the mid 80s. Northeast winds 5 to 10 mph.

Saturday Night Clear. Lows in the lower 60s. Northeast winds 5 mph.

Sunday Sunny. Highs in the upper 80s. Northeast winds 5 to 10 mph.

Sunday Night Clear. Lows in the lower 60s. North winds 5 to 10 mph.

Monday Through Tuesday Clear. Highs in the upper 80s. Lows in the lower 60s.

Have a great weekend from all of us at Texas Thunder Radio.

NWS Corpus Christi: Katia now a Hurricane in the Southwest Gulf of Mexico.

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Katia has now strengthened to a Hurricane with 75 mph winds. The forecast for Katia continues to keep the storm in the southwestern Gulf of Mexico eventually making landfall in Mexico on Friday.

Major Hurricane Irma is currently tracking north of Puerto Rico and will continue on a west-northwest track toward Florida over the next few days.

South Texas Impacts:

Although not currently forecast to directly impact South Texas, Katia and Irma may contribute to increased swell, high rip current risk, and the potential for tidal overflow/minor coastal flooding along the Middle Texas Coast this weekend through early next week.

Additional Information Resources:
National Hurricane Center:
  www.hurricanes.gov
NWS Corpus Christi:  www.weather.gov/corpuschristi
New Local Tropical Webpage:  http://www.weather.gov/srh/tropical?office=crp

Sincerely,
Penny Zabel
NWS Corpus Christi, TX

NWS Corpus Christi – Tropical Depression Thirteen Upgraded to Tropical Storm Katia in the Southwest Gulf of Mexico

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The National Hurricane Center (NHC) has upgraded Tropical Depression Thirteen, in the Southwest Gulf of Mexico, to Tropical Storm Katia. As of 4:00 AM CDT 6 September 2017, Katia was located around 22.1 degrees North, and 96.3 degrees West, approximately 105 miles east of Tampico, Mexico. Maximum sustained winds are 40 mph. Katia is expected to strengthen to a strong tropical storm before making landfall in Southeast Mexico Saturday.

With respect to Major Hurricane Irma: Irma remains a Category 5 storm and is forecast to continue a west-northwest trek through Saturday, then turn northwest to north Sunday, before impacting Florida.

South Texas Impacts:

Although not currently forecast to directly impact South Texas, Katia and Irma may contribute to increased swell, high rip current risk, and the potential for tidal overflow/minor coastal flooding along the Middle Texas Coast, this weekend through early next week.

Next Update:

If there is a significant change to any of the foregoing, an update will be issued.


Additional Information Resources:

National Hurricane Center:
  www.hurricanes.gov
NWS Corpus Christi:  www.weather.gov/corpuschristi
New Local Tropical Webpage:  http://www.weather.gov/srh/tropical?office=crp

Sincerely,

Waylon Collins
Senior Forecaster
NWS Corpus Christi, TX
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