Jump to content
  • Member Statistics

    17,615
    Total Members
    7,904
    Most Online
    Vesuvius
    Newest Member
    Vesuvius
    Joined

EPAC Tropical Action 2011


Recommended Posts

  • Replies 1.2k
  • Created
  • Last Reply

Sweet. A possible RECON mission...

WEATHER RECONNAISSANCE FLIGHTS

CARCAH, NATIONAL HURRICANE CENTER, MIAMI, FL.

0945 AM EDT SUN 19 JUNE 2011

SUBJECT: TROPICAL CYCLONE PLAN OF THE DAY (TCPOD)

VALID 20/1100Z TO 21/1100Z JUNE 2011

TCPOD NUMBER.....11-019

I. ATLANTIC REQUIREMENTS

1. NEGATIVE RECONNAISSANCE REQUIREMENTS.

2. OUTLOOK FOR SUCCEEDING DAY....NEGATIVE.

II. PACIFIC REQUIREMENTS

1. NEGATIVE RECONNAISSANCE REQUIREMENTS.

2. SUCCEEDING DAY OUTLOOK: POSSIBLE FIX NEAR

18.4N 104.1W AT 21/1200Z IF SYSTEM DEVELOPS.

EC

Link to comment
Share on other sites

Sweet. A possible RECON mission...

WEATHER RECONNAISSANCE FLIGHTS

CARCAH, NATIONAL HURRICANE CENTER, MIAMI, FL.

0945 AM EDT SUN 19 JUNE 2011

SUBJECT: TROPICAL CYCLONE PLAN OF THE DAY (TCPOD)

VALID 20/1100Z TO 21/1100Z JUNE 2011

TCPOD NUMBER.....11-019

I. ATLANTIC REQUIREMENTS

1. NEGATIVE RECONNAISSANCE REQUIREMENTS.

2. OUTLOOK FOR SUCCEEDING DAY....NEGATIVE.

II. PACIFIC REQUIREMENTS

1. NEGATIVE RECONNAISSANCE REQUIREMENTS.

2. SUCCEEDING DAY OUTLOOK: POSSIBLE FIX NEAR

18.4N 104.1W AT 21/1200Z IF SYSTEM DEVELOPS.

EC

Recon is my favorite part of the hurricane season.

I don't know how many people know of this site (perhaps a lot), but http://tropicalatlantic.com/recon/ is an awesome live recon decoder.

Link to comment
Share on other sites

Watches/Warnings hoisted for the Mexican Coast...

BULLETIN

TROPICAL DEPRESSION TWO-E ADVISORY NUMBER 1

NWS NATIONAL HURRICANE CENTER MIAMI FL EP022011

800 AM PDT SUN JUN 19 2011

...NEW TROPICAL DEPRESSION FORMS...WATCHES AND WARNINGS ISSUED FOR

PORTIONS OF THE COAST OF MEXICO...

SUMMARY OF 800 AM PDT...1500 UTC...INFORMATION

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

LOCATION...13.7N 99.9W

ABOUT 200 MI...320 KM SSW OF PUNTO MALDONADO MEXICO

ABOUT 335 MI...540 KM SSE OF LAZARO CARDENAS MEXICO

MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H

PRESENT MOVEMENT...WNW OR 295 DEGREES AT 9 MPH...15 KM/H

MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES

WATCHES AND WARNINGS

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

CHANGES WITH THIS ADVISORY...

THE GOVERNMENT OF MEXICO HAS ISSUED A TROPICAL STORM WARNING FOR THE

COAST OF MEXICO FROM TECPAN DE GALEANA WESTWARD TO PUNTA SAN TELMO.

THE GOVERNMENT OF MEXICO HAS ISSUED A HURRICANE WATCH FOR THE COAST

OF MEXICO FROM ZIHUATANEJO WESTWARD TO MANZANILLO.

post-32-0-01779300-1308494059.gif

Link to comment
Share on other sites

Track, intensity, or both?

Both. GFDL and HWRF are biasing TVCN too far north (which is essentially what NHC used for their track). While global models are poor for absolute intensity estimates, they do a good job with trends and none of the globals are showing much deepening.

Link to comment
Share on other sites

Beatriz now...

BULLETIN

TROPICAL STORM BEATRIZ INTERMEDIATE ADVISORY NUMBER 1A

NWS NATIONAL HURRICANE CENTER MIAMI FL EP022011

1100 AM PDT SUN JUN 19 2011

...DEPRESSION BECOMES TROPICAL STORM BEATRIZ...

SUMMARY OF 1100 AM PDT...1800 UTC...INFORMATION

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

LOCATION...14.1N 100.6W

ABOUT 205 MI...330 KM SW OF PUNTO MALDONADO MEXICO

ABOUT 285 MI...460 KM SSE OF LAZARO CARDENAS MEXICO

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

PRESENT MOVEMENT...WNW OR 300 DEGREES AT 10 MPH...17 KM/H

MINIMUM CENTRAL PRESSURE...1005 MB...29.67 INCHES

post-138-0-20667300-1308504942.jpg

Link to comment
Share on other sites

BULLETIN

TROPICAL STORM BEATRIZ INTERMEDIATE ADVISORY NUMBER 2A

NWS NATIONAL HURRICANE CENTER MIAMI FL EP022011

500 PM PDT SUN JUN 19 2011

...RAIN BANDS AFFECTING THE COAST OF MEXICO...BEATRIZ LIKELY TO BE

NEAR HURRICANE STRENGTH BY LATE TOMORROW...

SUMMARY OF 500 PM PDT...0000 UTC...INFORMATION

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

LOCATION...14.7N 101.7W

ABOUT 205 MI...335 KM S OF ZIHUATANEJO MEXICO

ABOUT 345 MI...550 KM SSE OF MANZANILLO MEXICO

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

PRESENT MOVEMENT...NW OR 305 DEGREES AT 12 MPH...19 KM/H

MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES

WATCHES AND WARNINGS

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

CHANGES WITH THIS ADVISORY...

NONE.

avn-l.jpg

Link to comment
Share on other sites

Yep, it's really pulling together. Latest intensity is up to 997 mb/50 kt. It'll become a 'cane today.

The new (2 am PDT) forecast is more bullish, bringing winds up to a healthy 80 kt during the 36-48-hr period, as the center passes within ~20 mi of the coast near Manzanillo. This part of the Discussion is interestin':

THE INNER CORE CONVECTION AND UPPER-LEVEL OUTFLOW PATTERNS HAVE IMPROVED CONSIDERABLY DURING THE PAST 6 HOURS. WITH AN ALREADY EXPANSIVE EQUATORWARD OUTFLOW PATTERN PRESENT...AND THE POLEWARD OUTFLOW EXPECTED TO IMPROVE BY 24 HOURS...THERE APPEARS TO BE NO PHYSICAL REASONS WHY BEATRIZ SHOULD NOT CONTINUE TO INTENSIFY FOR THE NEXT 48 HOURS OR SO...AND POSSIBLY EVEN RAPIDLY INTENSIFY DURING THAT TIME.

One interesting detail: the motion has taken a more N component. The 8 pm PDT package indicated 305-- now it's 315. This increases the threat to the coast. Even now, a track just a hair N of the forecast will bring the core ashore.

The Discussion notes the two camps with the models-- one that keeps it offshore (NOGAPS and UKMET) and the other that brings it onshore (ECMWF, GFS, GFDL, HWRF). The GFS has changed its tune from earlier.

Talk about a close shave:

post-19-0-72505200-1308562184.gif

Link to comment
Share on other sites

By the way, this SW "elbow" of the MX coast around Manzanillo and Puerto Vallarta-- comprising the states of Colima and Jalisco-- hasn't had a lot of hurricane action over the last couple of decades.

The last hurricane to directly hit this region was Hernan 1996, a Cat 1 which came ashore near the Jalisco/Colima border with an intensity of 987 mb/65 kt.

The early 1990s saw a small burst of activity for this region, with two Cat 2s coming ashore in the general vicinity of Manzanillo: Winifred 1992 (975 mb/85 kt) in Colima and Calvin 1993 (973 mb/85 kt) in Jalisco.

You have to go back to ancient history for the last major in this region: the Great Mexico Hurricane of 1959, a presumed Cat 5 that crossed the Jalisco coast a little WNW of Manzanillo with estimated winds of 140 kt. (The Cat-5 rating appears to be based on a single, vague piece of data of questionable origins, and I'm frankly skeptical. Unfortunately, no official reanalysis of this basin is currently being conducted.)

Kenna 2002-- a classic, late-October major-- was a close call, passing just N of Puerto Vallarta and making landfall in Nayarit as a Cat 4 (950 mb/120 kt).

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...