Skip Navigation Links weather.gov   
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
National Hurricane Center
Local forecast by
"City, St" or "ZIP"

 
Alternate Formats
   Text     |   Mobile
   Email   |   RSS XML/RSS logo
   About Alternates
Cyclone Forecasts
   Latest Advisory
   Past Advisories
   Audio/Podcasts
   About Advisories
Marine Forecasts
   Atlantic & E Pacific
   Gridded Marine
   About Marine
Tools & Data
   Satellite | Radar
   Analysis Tools
   Aircraft Recon
   GIS Datasets
   Data Archive
Development
   Experimental
   Research
   Forecast Accuracy
Outreach & Education
   Prepare
   Storm Surge
   About Cyclones
   Cyclone Names
   Wind Scale
   Most Extreme
   Forecast Models
   Breakpoints
   Resources
   Glossary | Acronyms
   Frequent Questions
Our Organization
   About NHC
   Mission & Vision
   Staff | Q&A
   Visitors | Virtual Tour
   Library Branch
   NCEP | Newsletter
Contact Us
   Comments
Follow the National Hurricane Cent
er on Facebook Follow the National Hurricane Center on Twitter
FirstGov.gov is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.
 
 

Hurricane RICK


ZCZC MIATCDEP5 ALL
TTAA00 KNHC DDHHMM
HURRICANE RICK DISCUSSION NUMBER  11
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   EP202009
800 PM PDT SAT OCT 17 2009
 
THE SATELLITE PRESENTATION OF HURRICANE RICK CAN BE EXPRESSED IN ONE
WORD...SPECTACULAR. THE EYE IS QUITE DISTINCT AND IS SURROUNDED BY
VERY DEEP CONVECTION. ON THE LAST AVAILABLE VISIBLE IMAGES ONE
COULD SEE THE SUNLIGHT REFLECTING OFF THE EASTERN SIDE OF THE
EYEWALL AND THE STADIUM EFFECT THAT IS TYPICAL OF INTENSE
HURRICANES. MORE IMPORTANTLY...SUBJECTIVE T-NUMBERS ARE 7.0 AND 7.5
ON THE DVORAK SCALE FROM TAFB AND SAB RESPECTIVELY...AND THE
OBJECTIVE T-NUMBERS HAVE REACHED 7.7 AND A 3-HOUR AVERAGE OF 7.4
DURING THE PAST HOUR OR SO.  BASED ON THESE DATA..THE INITIAL
INTENSITY HAS BEEN INCREASED TO 155 KNOTS. THIS MAKES RICK THE
SECOND STRONGEST HURRICANE ON RECORD IN THE EASTERN PACIFIC AFTER
LINDA IN 1997.
 
THERE IS AN OPPORTUNITY FOR RICK TO GATHER A LITTLE MORE STRENGTH
TONIGHT OR EARLY SUNDAY...BUT MOST LIKELY THE HURRICANE WILL
FLUCTUATE IN INTENSITY DUE TO POSSIBLE EYEWALL REPLACEMENT CYCLES
DURING THE NEXT 12 TO 24 HOURS. THEREAFTER...RICK IS EXPECTED TO
SLOWLY WEAKEN AS THE SHEAR BEGINS TO INCREASE AND THE CYCLONE MOVES
OVER RELATIVELY COOLER WATERS. THIS IS CONSISTENT WITH GUIDANCE
WHICH UNANIMOUSLY INDICATES THAT RICK HAS ALREADY REACHED...OR IS
VERY CLOSE TO ITS PEAK INTENSITY.
 
RICK CONTINUES RIGHT ON TRACK AND IS MOVING TOWARD THE
WEST-NORTHWEST OR 290 DEGREES AT 12 KNOTS...EMBEDDED WITHIN THE FLOW
SOUTH OF THE SUBTROPICAL HIGH OVER MEXICO. HOWEVER...IN A DAY OR
SO...THE STEERING PATTERN IS EXPECTED TO CHANGE.. THE SUBTROPICAL
HIGH WHICH HAS BEEN KEEPING RICK ON A WESTWARD COURSE AWAY FROM
MEXICO WILL BE ERODED BY A SHORT WAVE PASSING TO THE NORTH.  THIS
NEW STEERING PATTERN SHOULD FORCE RICK TO RECURVE TOWARD THE NORTH
AND NORTHEAST TOWARD SOUTHERN BAJA CALIFORNIA AND THEN TOWARD
MAINLAND MEXICO. WITH THE EXCEPTION OF THE UK MODEL WHICH KEEPS
RICK MOVING WESTWARD...THE REST OF THE MODELS RESPOND TO THE CHANGE
IN STEERING BY TURNING THE HURRICANE TOWARD THE NORTH AND NORTHEAST
AT DIFFERENT SPEEDS. THE OFFICIAL FORECAST FOLLOWS THE MODEL TREND
AND IS THE MIDDLE OF THE GUIDANCE ENVELOPE.
 
THE HURRICANE IS NOT EXPECTED TO BE A CATEGORY FIVE AS IT APPROACHES
BAJA CALIFORNIA BUT IS FORECAST TO BE INTENSE. INTERESTS ON THE
SOUTHWESTERN COAST OF MEXICO AND BAJA CALIFORNIA SHOULD CLOSELY
MONITOR THE PROGRESS OF THIS EXTREMELY DANGEROUS HURRICANE DURING
THE NEXT SEVERAL DAYS.
  
 
FORECAST POSITIONS AND MAX WINDS
 
INITIAL      18/0300Z 15.0N 105.9W   155 KT
 12HR VT     18/1200Z 15.7N 107.8W   160 KT
 24HR VT     19/0000Z 16.6N 110.0W   150 KT
 36HR VT     19/1200Z 17.5N 111.5W   140 KT
 48HR VT     20/0000Z 18.5N 112.0W   120 KT
 72HR VT     21/0000Z 20.5N 111.5W   105 KT
 96HR VT     22/0000Z 23.5N 110.0W    80 KT
120HR VT     23/0000Z 27.0N 106.0W    40 KT...INLAND
 
$$
FORECASTER AVILA
 
NNNN


Quick Navigation Links:
Tropical Cyclone Forecasts  -  Tropical Marine Forecasts  -  Data Archive
Outreach  -  Prepare  -  About Cyclones  -  About NHC  -  Contact Us

NOAA/ National Weather Service
National Centers for Environmental Prediction
National Hurricane Center
11691 SW 17th Street
Miami, Florida 33165-2149 USA
nhcwebmaster@noaa.gov
Disclaimer
Credits
Information Quality
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities
Page last modified: Thursday, 31-Dec-2009 12:09:31 UTC