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FXCA20 KWBC 261934
PMDCA
TROPICAL DISCUSSION - INTERNATIONAL DESKS
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
334 PM EDT FRI JUN 26 2026
FORECAST BULLETIN 26 JUNE 2026 AT 1930 UTC:
OVER THE NEXT THREE DAYS, THE MORE PERSISTENT RAINFALL IS EXPECTED
ACROSS PORTIONS OF THE SIERRA MADRE OCCIDENTAL AND WESTERN MEXICO,
ALONG WITH EASTERN ECUADOR AND NORTHERN PERU. SOUTHERN VENEZUELA
WILL ALSO SEE SIGNIFICANT RAINFALL DURING THIS PERIOD. IN
CONTRAST, NORTHERN VENEZUELA IS FORECAST TO REMAIN UNUSUALLY DRY
THROUGH THE WEEKEND.
AT THE UPPER LEVELS, A SERIES OF HIGH AND LOW PRESSURE SYSTEMS
WILL BE IN PLACE ACROSS THE TROPICAL REGION. UPPER-LEVEL HIGHS ARE
LOCATED TO THE NORTHWEST OF MEXICO AND OVER THE WATERS EXTENDING
OVER AND TO THE EAST OF THE BAHAMAS. MEANWHILE, UPPER-LEVEL LOWS
ARE POSITIONED OVER EASTERN MEXICO, CUBA, AND THE CENTRAL ATLANTIC.
IN THE MID LEVELS, A HIGH WILL BECOME VERTICALLY STACKED WITH THE
UPPER-LEVEL HIGH OVER NORTHERN MEXICO, ACCOMPANIED BY A TROUGH
THAT REFLECTS THE LOW OVER EASTERN MEXICO. ACROSS THE ATLANTIC, A
MID-LEVEL HIGH WILL SIT OVER THE WESTERN TROPICAL ATLANTIC, WITH A
TROUGH OVER THE WESTERN CENTRAL ATLANTIC THAT IS A REFLECTION OF
THE UPPER-LEVEL PATTERN. THE HIGH OVER NORTHERN MEXICO IS EXPECTED
TO TRACK EAST-NORTHEAST, EXTENDING INTO THE GULF OF MEXICO AND
TOWARD THE BAHAMAS. A MID-LEVEL TROUGH WILL DEVELOP OVER CENTRAL
AMERICA LATE IN THE WEEKEND.
AT THE LOW LEVELS, A STRONG HIGH WILL BE ANCHORED OVER THE CENTRAL
ATLANTIC, EXTENDING INTO THE NORTHERN GULF. A WEAKNESS WITHIN THIS
RIDGE WILL SUPPORT A TROUGH OVER THE WESTERN TROPICAL ATLANTIC.
THE HIGH PRESSURE IS FORECAST TO SHIFT EAST INTO THE EASTERN
ATLANTIC WHILE MAINTAINING STRONG WINDS ACROSS THE CARIBBEAN.
IN TERMS OF MOISTURE, SAHARAN DUST WILL KEEP THE CARIBBEAN
RELATIVELY DRY TODAY (FRIDAY) INTO TOMORROW (SATURDAY), THOUGH
DEEPER MOISTURE IS EXPECTED TO MOVE INTO THE LESSER ANTILLES ON
SUNDAY. CENTRAL AMERICA WILL SEE NEAR TO ABOVE NORMAL MOISTURE
TODAY AND TONIGHT BEFORE DRYING ON SATURDAY AND SUNDAY. AS NOTED,
NORTHERN VENEZUELA IS EXPECTED TO REMAIN MUCH DRIER THAN NORMAL
THROUGH SUNDAY. CONVERSELY, ABOVE NORMAL MOISTURE IS ANTICIPATED
FROM THE GUIANAS INTO ECUADOR, PERU, AND COLOMBIA THROUGH THE
WEEKEND. A DRIER PATCH MAY DEVELOP OVER AMAZONAS ON SUNDAY,
OTHERWISE, NEAR TO SLIGHTLY ABOVE AVERAGE MOISTURE IS EXPECTED.
TROPICAL WAVES:
SOF INIT 27/00 27/12 28/00 28/12 29/00 29/12 30/00 30/12
20N 111W 114W 117W 120W 122W 124W 126W 127W 128W
15N 95W 100W 104W 106W ---- ---- ---- ---- ----
20N 81W 85W 97W 91W 95W 97W 100W 105W 107W
17N 55W 63W 66W 72W 76W 80W 83W 85W 87W
15N 31W 36W 41W 45W 53W 56W 60W 64W 67W
ALAMO...(WPC)
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