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 Center on Facebook Follow the National Hurricane Center on Twitter
Subscribe the National Hurricane Center on YouTube Read the National Hurricane Center Inside the Eye blog on WordPress
FirstGov.gov is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.
 
 

Eastern Pacific Tropical Weather Discussion



000
AXPZ20 KNHC 191513
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
1605 UTC SUN APR 19 2015

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM  
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC. 

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...              

ITCZ FROM 5N103W TO 3N115W TO 5N125W TO 3N140W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION FROM 2N-5N BETWEEN 122W-132W.

...DISCUSSION... 

AN UPPER LEVEL TROUGH ACROSS THE NW PORTION OF THE AREA EXTENDS 
FROM 32N126W TO 20N140W. A 95-120 KT JETSTREAM IS SE OF THE 
TROUGH FROM 19N137W TO CENTRAL BAJA CALIFORNIA. STRONG 
SUBSIDENCE WITH DRY AND STABLE AIR AT THE MIDDLE AND UPPER 
LEVELS IS NW OF A LINE 14N140W TO 3N115W. SW WINDS E OF THE 
TROUGH IS ADVECTING MIDDLE AND UPPER LEVEL MOISTURE INTO 
SOUTHERN BAJA CALIFORNIA AND CENTRAL MEXICO. IN THE DEEP TROPICS 
AND UPPER LEVEL ANTICYCLONIC CIRCULATION IS CENTERED NEAR 
11N117W WITH A RIDGE NE INTO SOUTHERN MEXICO. 

A SURFACE RIDGE IS ACROSS THE AREA N OF 15N W OF 115W. THE PRES 
GRADIENT BETWEEN THE RIDGE AND THE ITCZ IS PRODUCING ELY TRADES 
15-20 KT WITH SEAS 8-9 FT FROM 9N-15N W OF 113W.

$$
DGS


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 USA
nhcwebmaster@noaa.gov
Disclaimer
Credits
Information Quality
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities
Page last modified: Sunday, 19-Apr-2015 15:13:46 UTC