Jump to content
  • Member Statistics

    17,587
    Total Members
    7,904
    Most Online
    LopezElliana
    Newest Member
    LopezElliana
    Joined

EPAC Tropical Action 2012


Recommended Posts

  • Replies 602
  • Created
  • Last Reply

TROPICAL DEPRESSION EIGHT-E SPECIAL DISCUSSION NUMBER 1

NWS NATIONAL HURRICANE CENTER MIAMI FL EP082012

1000 AM PDT SAT AUG 11 2012

THE LOW PRESSURE AREA PARTIALLY ASSOCIATED WITH THE REMNANTS OF

ERNESTO HAS BECOME BETTER DEFINED AS INDICATED BY MICROWAVE DATA

AND VISIBLE SATELLITE IMAGES. ALTHOUGH THE CENTER IS STILL

DIFFICULT TO LOCATE...THERE IS ENOUGH CIRCULATION FOR THE SYSTEM TO

BE CLASSIFIED AS A TROPICAL DEPRESSION AT THIS TIME. THIS IS

SUPPORTED BY DVORAK INTENSITY ESTIMATES EARLIER THIS MORNING. THERE

IS VERY STRONG EASTERLY SHEAR AFFECTING THE DEPRESSION...AND

CONSEQUENTLY ONLY A GRADUAL STRENGTHENING IS INDICATED.

BEST ESTIMATE OF THE INITIAL MOTION IS 270 DEGREES AT 6 KNOTS. THE

DEPRESSION IS SOUTH OF A STRONG SUBTROPICAL RIDGE....AND GLOBAL

MODELS INDICATE THAT THE RIDGE WILL EXPAND WESTWARD AND AMPLIFY.

THEREFORE...MOST OF THE GUIDANCE KEEP THE CYCLONE MOVING WESTWARD

OR EVEN SOUTH OF DUE WEST FOR THE NEXT FEW DAYS. BY THE END OF THE

FORECAST PERIOD THE CYCLONE WILL BE LOCATED ON THE WESTERN EDGE OF

THE SUBTROPICAL HIGH...AND IT COULD TURN MORE TO THE NORTHWEST.

FORECAST POSITIONS AND MAX WINDS

INIT 11/1700Z 17.5N 106.0W 30 KT 35 MPH

12H 12/0000Z 17.7N 106.9W 35 KT 40 MPH

24H 12/1200Z 17.7N 108.8W 40 KT 45 MPH

36H 13/0000Z 17.5N 110.5W 45 KT 50 MPH

48H 13/1200Z 17.5N 111.5W 55 KT 65 MPH

72H 14/1200Z 17.5N 113.0W 65 KT 75 MPH

96H 15/1200Z 17.5N 114.0W 65 KT 75 MPH

120H 16/1200Z 18.5N 115.5W 45 KT 50 MPH

Link to comment
Share on other sites

Hect-nersto....

BULLETIN

TROPICAL STORM HECTOR ADVISORY NUMBER 3

NWS NATIONAL HURRICANE CENTER MIAMI FL EP082012

800 PM PDT SAT AUG 11 2012

...THE EIGHTH TROPICAL STORM OF THE SEASON FORMS...

SUMMARY OF 800 PM PDT...0300 UTC...INFORMATION

----------------------------------------------

LOCATION...18.5N 108.1W

ABOUT 250 MI...405 KM W OF MANZANILLO MEXICO

ABOUT 190 MI...305 KM E OF SOCORRO ISLAND

MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H

PRESENT MOVEMENT...WNW OR 290 DEGREES AT 13 MPH...20 KM/H

MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES

WATCHES AND WARNINGS

--------------------

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

DISCUSSION AND 48-HOUR OUTLOOK

------------------------------

AT 800 PM PDT...0300 UTC...THE CENTER OF TROPICAL STORM HECTOR WAS

LOCATED NEAR LATITUDE 18.5 NORTH...LONGITUDE 108.1 WEST. HECTOR IS

MOVING TOWARD THE WEST-NORTHWEST NEAR 13 MPH...20 KM/H. A GRADUAL

TURN TOWARD THE WEST AND WEST-SOUTHWEST AT A SLOWER FORWARD SPEED

IS ANTICIPATED OVER THE NEXT COUPLE OF DAYS.

MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 40 MPH...65 KM/H...

WITH HIGHER GUSTS. SOME STRENGTHENING IS FORECAST DURING THE NEXT

48 HOURS.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM

FROM THE CENTER.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 999 MB...29.50 INCHES.

Link to comment
Share on other sites

  • 3 weeks later...

I've been naughty-- totally neglected this thread and my secret pet basin. :wub:

While we all ignored the EPAC, Hurriane Ileana formed. As of now, it's weakened to a TS as it fishes. We also have a Cherry (98E) and a Mandarin (99E)-- but the models basically keep both offshore, and the Euro doesn't do much with either.

In the next couple of weeks, the climatological risk of a major landfall on this side greatly increases, peaking in October-- and I'm thinking the El Nino might add a little extra help this year. I'm thinking there's a good chance that my final chase of the year might be an October recurver.

But I'm getting ahead of myself-- it's only 01 Sep.

post-19-0-88204100-1346537077_thumb.gif

Link to comment
Share on other sites

Looks like the 12Z GFS develops two areas of low pressure - one out of invest 90E and another out of a separate area of convection slightly further SW. The two regions share vorticity, so the actual genesis is quite complicated and will probably be subject to large run-to-run differences. GFS then takes the northern system into Baja California but has it very weak, while the western system is stronger but no threat to land.

Link to comment
Share on other sites

Looks like the 12Z GFS develops two areas of low pressure - one out of invest 90E and another out of a separate area of convection slightly further SW. The two regions share vorticity, so the actual genesis is quite complicated and will probably be subject to large run-to-run differences. GFS then takes the northern system into Baja California but has it very weak, while the western system is stronger but no threat to land.

Ugh. In other words, they both suck. Grrrr.

"Complicated genesis" is just never a good thing.

Link to comment
Share on other sites

Olivia has some history. In 1982, Olivia was a TD until just before landfall in Santa Barbarbra and heavy rains ruined the raisin crop and delayed the tomato harvest leading to major losses. Flooding rains hit UT. In 2000, the remnants of Olivia brought squalls and heavy rains to SE AZ part of a pattern that led to significant flooding on the San Pedro River and the wettest October in many years in Sierra Vista.

Steve

Link to comment
Share on other sites

Figure about 2-3 weeks until the MJO comes back around, then just guessing on the October climo track

Cool. I'm holdin' you to this. FYI.

Olivia has some history. In 1982, Olivia was a TD until just before landfall in Santa Barbarbra and heavy rains ruined the raisin crop and delayed the tomato harvest leading to major losses. Flooding rains hit UT. In 2000, the remnants of Olivia brought squalls and heavy rains to SE AZ part of a pattern that led to significant flooding on the San Pedro River and the wettest October in many years in Sierra Vista.

Steve

Interesting. And on two occasions, major (Cat-3) hurricanes named Olivia have hit MX-- the Baja Peninsula in 1967 and Sinaloa in 1975.

The name seems to be blessed. Perhaps the blessings will continue. :)

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...