000
WTNT34 KNHC 221449
TCPAT4
BULLETIN
TROPICAL STORM HAROLD ADVISORY NUMBER 5
NATIONAL WEATHER SERVICE NATIONAL HURRICANE CENTER MIAMI FLORIDA, AL092023
10:00 A.M. CENTRAL DAYLIGHT TIME TUESDAY AUG 22 2023
- HAROLD MAKES LANDFALL ON PADRE ISLAND TEXAS…
- HEAVY RAINS AND TROPICAL STORM FORCE WINDS EXPECTED DURING THE NEXT SEVERAL HOURS…
SUMMARY OF 10:00 A.M. CENTRAL DAYLIGHT TIME, 15:00 COORDINATED UNIVERSAL TIME
INFORMATION
LOCATION,27.1 NORTH 97.4 WEST
ABOUT 35 MILES, 55 KILOMETERS NORTH OF PORT MANSFIELD TEXAS
ABOUT 50 MILES, 80 KILOMETERS SOUTH OF CORPUS CHRISTI TEXAS
MAXIMUM SUSTAINED WINDS, 50 MILES PER HOUR, 85 KILOMETERS PER HOUR
PRESENT MOVEMENT,WEST NORTHWEST OR 285 DEGREES AT 21 MILES PER HOUR, 33 KILOMETERS PER HOUR
MINIMUM CENTRAL PRESSURE,998 MILLIBAR, 29.47 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A TROPICAL STORM WARNING IS IN EFFECT FOR…
MOUTH OF RIO GRANDE TO PORT O’CONNOR, TEXAS
A TROPICAL STORM WATCH IS IN EFFECT FOR…
PORT O’CONNOR TO SARGENT, TEXAS
- A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA.
- A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA.
- INTERESTS ELSEWHERE IN EASTERN TEXAS AND NORTHERN MEXICO SHOULD MONITOR THE PROGRESS OF THIS SYSTEM.
- 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
- RADAR FROM BROWNSVILLE, TEXAS, INDICATE THAT THE CENTER OF HAROLD HAS MADE LANDFALL ON PADRE ISLAND AROUND 10:00 A.M. CENTRAL DAYLIGHT TIME (15:00 COORDINATED UNIVERSAL TIME).
- THE CENTER OF TROPICAL STORM HAROLD WAS LOCATED ON THE COAST NEAR LATITUDE 27.1 NORTH, LONGITUDE 97.4 WEST
- HAROLD IS MOVING TOWARD THE WEST NORTHWEST NEAR 21 MILES PER HOUR (33 KILOMETERS PER HOUR) AND THIS MOTION IS EXPECTED TO CONTINUE, TAKING THE SYSTEM INLAND OVER SOUTHERN TEXAS AND NORTHERN MEXICO.
- MAXIMUM SUSTAINED WINDS ARE NEAR 50 MILES PER HOUR (85 KILOMETERS PER HOUR) WITH HIGHER GUSTS.
- STEADY WEAKENING IS FORECAST, AND HAROLD IS EXPECTED TO BECOME A TROPICAL DEPRESSION LATER TODAY.
- TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 115 MILES (185 KILOMETERS) FROM THE CENTER.
- NOAA BUOY AT PADRE ISLAND REPORTED A SUSTAINED WIND OF 40 MILES PER HOUR (65 KILOMETERS PER HOUR) AND A GUST OF 59 MILES PER HOUR (94 KILOMETERS PER HOUR).
AN OBSERVATION IN LAGUNA SHORES, TEXAS, REPORTED A SUSTAINED WIND OF 39 MILES PER HOUR (63 KILOMETERS PER HOUR) AND A WIND GUST OF 48 MILES PER HOUR (78 KILOMETERS PER HOUR). - THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 998 MILLIBAR (29.47 INCHES).
HAZARDS AFFECTING LAND
KEY MESSAGES FOR HAROLD CAN BE FOUND IN THE TROPICAL CYCLONE DISCUSSION UNDER AWIPS HEADER MIATCDAT4 AND WMO HEADER WTNT44 KNHC AND ON THE WEB AT HURRICANES.GOV/TEXT/MIATCDAT4.SHTML.
RAINFALL:
- TROPICAL STORM HAROLD IS EXPECTED TO PRODUCE RAINFALL AMOUNTS OF 2 TO 4 INCHES, WITH ISOLATED HIGHER AMOUNTS OF 6 INCHES, ACROSS SOUTH TEXAS THROUGH EARLY WEDNESDAY.
- SCATTERED INSTANCES OF FLASH FLOODING WILL BE POSSIBLE.
- ACROSS MEXICO, RAINFALL AMOUNTS OF 4 TO 6 INCHES, WITH LOCAL AMOUNTS OF 10 INCHES, ARE EXPECTED ACROSS PORTIONS OF NORTHERN COAHUILA AND NORTHERN NUEVO LEON TUESDAY THROUGH WEDNESDAY.
- SCATTERED INSTANCES OF FLASH FLOODING ARE EXPECTED.
WIND:
- TROPICAL STORM CONDITIONS ARE EXPECTED IN THE WARNING AREA DURING THE NEXT SEVERAL HOURS.
STORM SURGE:
- THE COMBINATION OF A STORM SURGE AND THE TIDE WILL CAUSE NORMALLY DRY AREAS NEAR THE 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…
- MOUTH OF RIO GRANDE TO SARGENT, INCLUDING BAFFIN BAY, CORPUS CHRISTI BAY AND MATAGORDA BAY,1 TO 3 FT
- THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST NEAR AND TO THE NORTH OF THE LANDFALL LOCATION, WHERE THE SURGE WILL BE ACCOMPANIED BY LARGE WAVES.
- 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.
TORNADOES:
- A COUPLE OF TORNADOES ARE POSSIBLE ACROSS SOUTH TEXAS THROUGH THE AFTERNOON.
SURF:
- LARGE SWELLS WILL AFFECT PORTIONS OF SOUTHERN TEXAS TODAY.
- THESE SWELLS ARE LIKELY TO CAUSE LIFE THREATENING SURF AND RIP CURRENT CONDITIONS.
- PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE.
NEXT ADVISORY
NEXT INTERMEDIATE ADVISORY AT 1:00 P.M. CENTRAL DAYLIGHT TIME.
NEXT COMPLETE ADVISORY AT 4:00 P.M. CENTRAL DAYLIGHT TIME.
$$
FORECASTER CANGIALOSI