000
AXNT20 KNHC 270002
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL  
805 PM EDT MON JUL 26 2010

TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL 
AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTIONS
OF SOUTH AMERICA...AND ATLANTIC OCEAN TO THE AFRICAN COAST
FROM THE EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED
ON SATELLITE IMAGERY...METEOROLOGICAL ANALYSIS...WEATHER
OBSERVATIONS...AND RADAR.

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2315 UTC.

...TROPICAL WAVES...

TROPICAL WAVE IS ANALYZED FROM 19N24W TO 14N28W TO 8N31W MOVING 
W 10-15 KT. THERE IS A NORTHERN VORTICITY MAXIMUM NEAR THE CAPE 
VERDE ISLANDS WITH SOME CYCLONIC TURNING NOTED ON SATELLITE 
IMAGERY. THE ENTIRE AREA IS IN A MOISTURE MAXIMUM AS NOTED ON 
SSMI TOTAL PRECIPITABLE WATER IMAGERY. WIDELY SCATTERED MODERATE 
CONVECTION IS ALONG THE ITCZ FROM 7N-10N BETWEEN 30W-37W.  

TROPICAL WAVE IS ANALYZED ALONG 55W S OF 18N MOVING W 15-20 KT. 
MOISTURE IS NOTED ON SSMI TOTAL PRECIPITABLE WATER IMAGERY E OF  
THE WAVE AXIS S OF 15N. WIDELY SCATTERED MODERATE 
CONVECTION IS ALONG THE ITCZ FROM 3N-11N BETWEEN 51W-60W. 

...THE ITCZ...

THE ITCZ AXIS IS CENTERED ALONG 14N17W 16N27W 8N40W 9N50W  
12N56W 9N62W. BESIDES THE CONVECTION MENTIONED IN THE TROPICAL 
WAVE SECTION...ISOLATED MODERATE CONVECTION IS ALONG THE COAST 
OF W AFRICA FROM 10N-14N BETWEEN 10W-18W.

...DISCUSSION...

GULF OF MEXICO...
A 1014 MB LOW IS CENTERED OVER SE TEXAS NEAR 30N97W. WIDELY 
SCATTERED MODERATE CONVECTION IS INLAND OVER S TEXAS AND 
LOUISIANA...AND OVER THE NW GULF OF MEXICO FROM 25N TO BEYOND 
32N BETWEEN 90W-98W. FURTHER S...WIDELY SCATTERED MODERATE 
CONVECTION IS OVER THE SE GULF OF MEXICO FROM 22N-26N BETWEEN 
85W-90W. SIMILAR CONVECTION IS OVER S FLORIDA S OF 27N. A 1022 
MB HIGH IS OVER THE W ATLANTIC PRODUCING 5-10 KT SE RETURN FLOW 
OVER THE E GULF OF MEXICO E OF 90W. SSMI TOTAL PRECIPITABLE 
WATER IMAGERY SHOWS CONSIDERABLE MOISTURE OVER THE ENTIRE GULF. 
IN THE UPPER LEVELS...AN UPPER LEVEL LOW IS CENTERED OVER TEXAS 
NEAR 33N98W. UPPER LEVEL DIFFLUENCE SE OF THIS CENTER IS 
ENHANCING THE CONVECTION OVER THE NW GULF. ANOTHER UPPER LEVEL 
LOW IS CENTERED IVER THE NE GULF NEAR 27N87W. UPPER LEVEL 
DIFFLUENCE S OF THIS CENTER IS ENHANCING THE CONVECTION OVER THE 
SE GULF. EXPECT CONTINUED CONVECTION OVER FLORIDA...AND OVER THE 
THE W GULF OVER THE NEXT 24 HOURS.  

CARIBBEAN SEA...
A SURFACE TROUGH IS OVER THE YUCATAN PENINSULA ALONG 89W FROM 
FROM 13N-21N. SCATTERED MODERATE TO STRONG CONVECTION IS INLAND 
OVER THE YUCATAN PENINSULA AND THE GULF OF HONDURAS FROM 15N-20N 
BETWEEN 87W-90W. SIMILAR CONVECTION IS OVER THE SW CARIBBEAN 
FROM 7N-14N BETWEEN 77W-85W. 15-20 KT TRADEWINDS ARE OVER THE 
CARIBBEAN SEA. MOSTLY FAIR WEATHER IS OVER THE CENTRAL AN 
EASTERN CARIBBEAN E OF 80W. IN THE UPPER LEVELS...AN UPPER LEVEL 
HIGH IS OVER THE W CARIBBEAN NEAR 17N83W ENHANCING CONVECTION. 
EXPECT CONTINUED CONVECTION OVER CENTRAL AMERICA AND OVER THE SW 
CARIBBEAN OVER THE NEXT 24 HOURS.   

ATLANTIC OCEAN...

NO SIGNIFICANT WEATHER IS OCCURRING ACROSS THE ATLC BASIN.A  
SURFACE RIDGE DOMINATES THE ATLC ANCHORED BY A 1025 MB HIGH NE 
OF THE AZORES AND A 1022 MB HIGH IN THE W ATLC NEAR 27N72W. 
VISIBLE SATELLITE IMAGERY SHOWS DRY SAHARAN AIR ACROSS THE 
TROPICAL ATLC INTO THE CARIBBEAN. 

FOR ADDITIONAL INFORMATION PLEASE VISIT 
HTTP://WWW.HURRICANES.GOV/MARINE

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FORMOSA