Tropical Depression Nine forms in the Western Gulf
Posted by Chris in Tampa on 8/21/2023, 8:46 pm
NHC Track:
https://www.nhc.noaa.gov/refresh/graphics_at4+shtml/?cone#contents



Floater:
https://www.star.nesdis.noaa.gov/GOES/floater.php?stormid=AL092023

Gulf of Mexico satellite:
https://www.star.nesdis.noaa.gov/GOES/sector_band.php?sat=G16&sector=gm&band=13&length=12

Southern Plain Sector (includes Texas) satellite:
https://www.star.nesdis.noaa.gov/GOES/sector_band.php?sat=G16&sector=sp&band=13&length=24

Northwestern Gulf satellite:
https://weather.cod.edu/satrad/?parms=regional-gulf-13-24-0-100-1&checked=map&colorbar=data

Floater from Colorado State:
https://rammb-data.cira.colostate.edu/tc_realtime/storm.asp?storm_identifier=al912023

The next names on the list are:

Harold
Idalia

92L in the Eastern Atlantic might get that other name unless something else pops up somewhere, been a busy stretch as Cypress notes about three storms forming in 24 hours.

Some in Texas will get some rain out of this.

Quantitative Precipitation Forecasts:
https://wpc.ncep.noaa.gov/index.php#page=qpf
With rainfall totals forecast.

NHC version of that from the WPC, with less colors on the legend:
https://www.nhc.noaa.gov/refresh/graphics_at4+shtml/?rainqpf#contents

It's extreme southern Texas that will get some, from around Brownsville to Corpus Christi.

Radar:
https://mrms.nssl.noaa.gov/qvs/product_viewer/index.php?time_mode=update&zoom=7&clon=-97&clat=28&product_type=crefls&product=CREF

From the 7pm CDT Monday intermediate advisory on rainfall:

RAINFALL: The depression is expected to produce rainfall amounts
of 3 to 5 inches, with isolated higher amounts of 7 inches, across
South Texas on Tuesday and Wednesday. Areas of flash flooding will
be possible.

Across Mexico, rainfall amounts of 4 to 6 inches, with local amounts
of 10 inches, are expected across portions of northern Coahuila and
northern Nuevo Leon on Tuesday and Wednesday. Areas of flash
flooding are expected.

Drought monitor:
https://droughtmonitor.unl.edu/
Texas specifically:
https://droughtmonitor.unl.edu/CurrentMap/StateDroughtMonitor.aspx?TX

Areas to get rain have a moderate to severe drought, but the areas that need it further north and northeast, where there is severe, extreme and even exceptional drought, they aren't likely to get any.



Bob Henson and Jeff Masters cover the tropical activity in the Atlantic:
https://yaleclimateconnections.org/topic/eye-on-the-storm/
Today's (Monday) blog post was written when Nine was a potential tropical cyclone.
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Tropical Depression Nine forms in the Western Gulf - Chris in Tampa, 8/21/2023, 8:46 pm
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