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Tropical Depression Don


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It encountered dry air from the east and from the west. It was also appeared to deform from it's circular shape into an elongated troff

You can see the center again now that there's clutter.

post-673-0-54389100-1311991876.gif

So the only way to see the center of Don making LF is to increase the radar sensitivity mode, so we can see bugs swirl around!!! Cool! :arrowhead:

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OK, wait-- whoa. Totally confused by that radar loop above. It looks like a nice cyclone-- except that it's totally undetectable on the ground. We are on the Bay, within 20 ft of the water, very near the center, and we haven't measured winds over 15 kt or more than a trace of rain.

EDIT: OK, so radar needs to be in princess-and-the-pea mode to see Don. That makes sense.

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I'm interested on what the NHC has to say..

I bet they mention the Euro....maybe in an apologetic way...seeing as they seemingly discounted it in earlier discussions when talking about a decoupling of the LL and ML circulations it was depicting over several runs. And surely, the antecedent dry air at the surface and midlevels over the landfall area.

Things to remember as we move throught the rest of the season and beyond......always learning, no matter what skill level in this field...

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OK, wait-- whoa. Totally confused by that radar loop above. It looks like a nice cyclone-- except that it's totally undetectable on the ground. We are on the Bay, within 20 ft of the water, very near the center, and we haven't measured winds over 15 kt or more than a trace of rain.

EDIT: OK, so radar needs to be in princess-and-the-pea mode to see Don. That makes sense.

The NWS shifted into clear air mode, Josh. You should be seeing a nice band of bugs in a few minutes....

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000WTNT34 KNHC 300234TCPAT4BULLETINTROPICAL DEPRESSION DON ADVISORY NUMBER 10NWS NATIONAL HURRICANE CENTER MIAMI FL AL0420111000 PM CDT FRI JUL 29 2011...DON WEAKENING FAST AS IT REACHES THE TEXAS COAST NEAR BAFFINBAY... SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION-----------------------------------------------LOCATION...27.2N 97.5WABOUT 40 MI...65 KM S OF CORPUS CHRISTI TEXASABOUT 90 MI...145 KM N OF BROWNSVILLE TEXASMAXIMUM SUSTAINED WINDS...35 MPH...55 KM/HPRESENT MOVEMENT...WNW OR 290 DEGREES AT 14 MPH...22 KM/HMINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHESWATCHES AND WARNINGS--------------------CHANGES WITH THIS ADVISORY...THE TROPICAL STORM WARNING FOR THE TEXAS COAST HAS BEENDISCONTINUED.SUMMARY OF WATCHES AND WARNINGS IN EFFECT...THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHERSERVICE FORECAST OFFICE. DISCUSSION AND 48-HOUR OUTLOOK------------------------------TROPICAL DEPRESSION DON IS CURRENTLY CROSSING THE TEXAS COAST NEARBAFFIN BAY AND AT 1000 PM CDT...0300 UTC...THE CENTER WAS LOCATEDNEAR LATITUDE 27.2 NORTH...LONGITUDE 97.5 WEST. THE DEPRESSION ISMOVING TOWARD THE WEST-NORTHWEST NEAR 14 MPH...22 KM/H...AND THISGENERAL MOTION IS EXPECTED TO CONTINUE THROUGH SATURDAY.MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 35 MPH...55 KM/H...WITH HIGHER GUSTS. DON IS FORECAST TO DISSIPATE IN A DAY OR SO ASIT MOVES FARTHER INLAND. ESTIMATED MINIMUM CENTRAL PRESSURE FROM A RECONNAISSANCE PLANE WAS1006 MB...29.71 INCHES.

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