661
WTNT32 KNHC 231740
TCPAT2
BULLETIN
TROPICAL STORM BERTHA INTERMEDIATE ADVISORY NUMBER 17A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL022026
ISSUED BY THE NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
100 PM CDT THU JUL 23 2026
..BERTHA INLAND NEAR THE TEXAS-LOUISIANA BORDER
..HEAVY RAINS SPREADING ACROSS PORTIONS OF COASTAL TEXAS
SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...29.9N 93.8W
ABOUT 40 MI...60 KM WSW OF LAKE CHARLES LOUISIANA
ABOUT 75 MI...115 KM NE OF GALVESTON TEXAS
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...W OR 275 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE GULF COAST FROM MORGAN CITY, LOUISIANA, TO SARGENT, TEXAS
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA, IN THIS CASE WITHIN 24
HOURS.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA, INCLUDING POSSIBLE
INLAND WATCHES AND WARNINGS, PLEASE MONITOR PRODUCTS ISSUED BY YOUR
LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE.
DISCUSSION AND OUTLOOK
----------------------
AT 100 PM CDT (1800 UTC), THE CENTER OF TROPICAL STORM BERTHA WAS
LOCATED NEAR LATITUDE 29.9 NORTH, LONGITUDE 93.8 WEST. BERTHA IS
MOVING TOWARD THE WEST NEAR 10 MPH (17 KM/H), AND THIS MOTION WITH
SOME INCREASE IN FORWARD SPEED IS EXPECTED DURING THE NEXT DAY OR
SO. ON THE FORECAST TRACK, THE CENTER OF BERTHA WILL MOVE ACROSS
PORTIONS OF EASTERN TEXAS DURING THE NEXT SEVERAL HOURS.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 45 MPH (75 KM/H) WITH HIGHER
GUSTS. BERTHA IS EXPECTED TO GRADUALLY WEAKEN, AND IT IS FORECAST
TO DISSIPATE IN A DAY OR SO.
TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 160 MILES (260 KM)
SOUTH OF THE CENTER.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1004 MB (29.65 INCHES).
HAZARDS AFFECTING LAND
----------------------
KEY MESSAGES FOR TROPICAL STORM BERTHA CAN BE FOUND IN THE TROPICAL
CYCLONE DISCUSSION UNDER AWIPS HEADER MIATCDAT2 AND WMO HEADER
WTNT42 KNHC.
WIND: TROPICAL STORM CONDITIONS WILL CONTINUE SPREADING ACROSS
PORTIONS OF THE LOUISIANA AND TEXAS COASTS WITHIN THE WARNING AREA
INTO THE EVENING.
STORM SURGE: THE COMBINATION OF STORM SURGE AND THE TIDE WILL
CAUSE NORMALLY DRY AREAS NEAR THE IMMEDIATE COAST TO BE FLOODED BY
RISING WATERS MOVING INLAND FROM THE SHORELINE. THE WATER COULD
REACH THE FOLLOWING HEIGHTS ABOVE GROUND SOMEWHERE IN THE INDICATED
AREAS IF THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...
PORT BOLIVAR, TX TO PORT FOURCHON, LA...1-2 FT
THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST.
SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE TIMING OF THE SURGE
AND THE TIDAL CYCLE, AND CAN VARY GREATLY OVER SHORT DISTANCES. FOR
INFORMATION SPECIFIC TO YOUR AREA, PLEASE SEE PRODUCTS ISSUED BY
YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE.
FOR A COMPLETE DEPICTION OF AREAS AT RISK OF STORM SURGE INUNDATION,
PLEASE SEE THE NATIONAL WEATHER SERVICE PEAK STORM SURGE GRAPHIC,
AVAILABLE AT HURRICANES.GOV/GRAPHICS_AT2.SHTML?PEAKSURGE.
RAINFALL: BERTHA IS EXPECTED TO PRODUCE TOTAL RAINFALL
AMOUNTS OF 2 TO 4 INCHES WITH ISOLATED TOTALS TO 6 INCHES THROUGH
THURSDAY NIGHT ALONG TEXAS GULF COAST AND SOUTH TEXAS. THIS RAINFALL
MAY PRODUCE ISOLATED FLASH FLOODING, ESPECIALLY IN URBAN AREAS.
FOR A COMPLETE DEPICTION OF FORECAST RAINFALL ASSOCIATED WITH
BERTHA, PLEASE SEE THE NATIONAL WEATHER SERVICE STORM TOTAL RAINFALL
GRAPHIC AVAILABLE AT HURRICANES.GOV/GRAPHICS_AT2.SHTML?RAINQPF AND
THE FLASH FLOOD RISK GRAPHIC AT
HURRICANES.GOV/GRAPHICS_AT2.SHTML?ERO.
SURF: SWELLS GENERATED BY BERTHA WILL CONTINUE SPREADING WESTWARD
ALONG THE NORTHERN AND NORTHWESTERN GULF COAST. THESE SWELLS ARE
LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS.
PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE.
A DEPICTION OF RIP CURRENT RISK FOR THE UNITED STATES CAN BE FOUND
AT: HURRICANES.GOV/GRAPHICS_AT2.SHTML?RIPCURRENTS
NEXT ADVISORY
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NEXT COMPLETE ADVISORY AT 400 PM CDT.
FORECASTER CANGIALOSI/R. ZELINSKY
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