706
WTUS84 KBRO 220906
HLSBRO
TXZ248>255-351-353>355-451-454-455-221715-
TROPICAL STORM HAROLD LOCAL STATEMENT ADVISORY NUMBER 4
NATIONAL WEATHER SERVICE BROWNSVILLE TX AL092023
406 AM CDT TUE AUG 22 2023
THIS PRODUCT COVERS THE RIO GRANDE VALLEY AND DEEP SOUTH TEXAS
**TROPICAL STORM HAROLD HEADED FOR THE SOUTH TEXAS COAST**
**HEAVY RAIN BANDS AND STRONG WINDS BEGINNING TO SPREAD ONSHORE IN THE
WARNING AREA...
NEW INFORMATION
---------------
* CHANGES TO WATCHES AND WARNINGS:
- NONE
* CURRENT WATCHES AND WARNINGS:
- A TROPICAL STORM WARNING IS IN EFFECT FOR BROOKS, CAMERON
ISLAND, COASTAL CAMERON, COASTAL KENEDY, COASTAL WILLACY,
INLAND KENEDY, INLAND WILLACY, KENEDY ISLAND, NORTHERN HIDALGO,
AND WILLACY ISLAND
* STORM INFORMATION:
- ABOUT 140 MILES EAST OF BROWNSVILLE TX OR ABOUT 150 MILES
EAST-SOUTHEAST OF PORT MANSFIELD TX
- 25.8N 95.1W
- STORM INTENSITY 45 MPH
- MOVEMENT WEST-NORTHWEST OR 285 DEGREES AT 18 MPH
SITUATION OVERVIEW
------------------
AT 400 AM CDT, TROPICAL STORM HAROLD CONTINUES TO MOVE SLIGHTLY NORTH
OF DUE WEST TOWARDS THE LOWER TEXAS COAST. THE ILL-DEFINED CENTER OF
THE TROPICAL CYCLONE IS ON TRACK TO APPROACH THE LOWER TEXAS COAST MID
TO LATE MORNING TUESDAY WITH A SMALL WINDOW OF OPPORTUNITY FOR
ADDITIONAL STRENGTHENING BEFORE MAKING LANDFALL. TROPICAL STORM
CONDITIONS ARE LIKELY ACROSS THE BARRIER ISLANDS, COASTAL CAMERON AND
INTO WILLACY, KENEDY COUNTIES THIS MORNING AND ARE POSSIBLE ACROSS
INLAND AREAS OF BROOKS AND PORTIONS OF NORTHERN HIDALGO COUNTIES LATE
THIS MORNING AND EARLY AFTERNOON. CLUSTERS AND BANDS OF SHOWERS AND
SOME THUNDERSTORMS ARE APPROACHING THE COAST PRIOR TO SUNRISE AND WILL
CONTINUE TO SPREAD INLAND THROUGH THE MORNING AND AFTERNOON. THESE
BANDS WILL CONTAIN HEAVY RAINFALL AND GUSTY WINDS WITH INCREASING
COVERAGE AND INTENSITY AS THE CENTER OF HAROLD MOVES INLAND. ISOLATED
TORNADOES, ESPECIALLY NORTH OF WHERE THE CENTER OF THE TROPICAL STORMS
CROSSES THE COAST ARE POSSIBLE. MINOR COASTAL FLOODING OR RUN-UP TO THE
DUNES IS POSSIBLE, ESPECIALLY AROUND HIGH TIDE AT 5:38 AM TUESDAY
MORNING.
POTENTIAL IMPACTS
-----------------
* FLOODING RAIN:
PROTECT AGAINST DANGEROUS RAINFALL FLOODING HAVING POSSIBLE
SIGNIFICANT IMPACTS ACROSS THE RIO GRANDE VALLEY AND DEEP SOUTH
TEXAS. POTENTIAL IMPACTS INCLUDE:
- MODERATE RAINFALL FLOODING MAY PROMPT SEVERAL EVACUATIONS AND
RESCUES.
- ARROYOS AND LARGER CREEKS MAY QUICKLY BECOME SWOLLEN WITH SWIFT
CURRENTS AND OVERSPILL THEIR BANKS IN A FEW PLACES, ESPECIALLY
IN USUALLY VULNERABLE SPOTS. SMALL STREAMS, CREEKS, CANALS, AND
DITCHES OVERFLOW.
- FLOOD WATERS CAN ENTER SOME STRUCTURES OR WEAKEN FOUNDATIONS.
SEVERAL PLACES MAY EXPERIENCE EXPANDED AREAS OF RAPID
INUNDATION AT UNDERPASSES, LOW-LYING SPOTS, AND POOR DRAINAGE
AREAS. SOME STREETS AND PARKING LOTS TAKE ON MOVING WATER AS
STORM DRAINS AND RETENTION PONDS OVERFLOW. DRIVING CONDITIONS
BECOME HAZARDOUS. SOME ROAD AND BRIDGE CLOSURES.
* WIND:
PROTECT AGAINST HAZARDOUS WIND HAVING POSSIBLE LIMITED IMPACTS ACROSS
THE RIO GRANDE VALLEY AND DEEP SOUTH TEXAS. POTENTIAL IMPACTS INCLUDE:
- DAMAGE TO PORCHES, AWNINGS, CARPORTS, SHEDS, AND UNANCHORED
MOBILE HOMES. UNSECURED LIGHTWEIGHT OBJECTS BLOWN ABOUT.
- MANY LARGE TREE LIMBS BROKEN OFF. A FEW TREES SNAPPED OR
UPROOTED, BUT WITH GREATER NUMBERS IN PLACES WHERE TREES ARE
SHALLOW ROOTED. SOME FENCES AND ROADWAY SIGNS BLOWN OVER.
- A FEW ROADS IMPASSABLE FROM DEBRIS, PARTICULARLY WITHIN URBAN
OR HEAVILY WOODED PLACES. HAZARDOUS DRIVING CONDITIONS ON
BRIDGES AND OTHER ELEVATED ROADWAYS.
- SCATTERED POWER AND COMMUNICATIONS OUTAGES.
* TORNADOES:
PROTECT AGAINST A TORNADO EVENT HAVING POSSIBLE LIMITED IMPACTS
ACROSS THE NORTHERN RANCHLANDS. POTENTIAL IMPACTS INCLUDE:
- THE OCCURRENCE OF ISOLATED TORNADOES CAN HINDER THE EXECUTION
OF EMERGENCY PLANS DURING TROPICAL EVENTS.
- A FEW PLACES MAY EXPERIENCE TORNADO DAMAGE, ALONG WITH POWER
AND COMMUNICATIONS DISRUPTIONS.
- LOCATIONS COULD REALIZE ROOFS PEELED OFF BUILDINGS, CHIMNEYS
TOPPLED, MOBILE HOMES PUSHED OFF FOUNDATIONS OR OVERTURNED,
LARGE TREE TOPS AND BRANCHES SNAPPED OFF, SHALLOW-ROOTED TREES
KNOCKED OVER, MOVING VEHICLES BLOWN OFF ROADS, AND SMALL BOATS
PULLED FROM MOORINGS.
ELSEWHERE ACROSS THE RIO GRANDE VALLEY AND DEEP SOUTH TEXAS, LITTLE
TO NO IMPACT IS ANTICIPATED.
* SURGE:
PROTECT AGAINST LOCALLY HAZARDOUS SURGE HAVING POSSIBLE LIMITED
IMPACTS ACROSS THE LOWER TEXAS COAST. POTENTIAL IMPACTS IN THIS AREA
INCLUDE:
- LOCALIZED INUNDATION WITH STORM SURGE FLOODING MAINLY ALONG
IMMEDIATE SHORELINES AND IN LOW-LYING SPOTS, OR IN AREAS
FARTHER INLAND NEAR WHERE HIGHER SURGE WATERS MOVE ASHORE.
- SECTIONS OF NEAR-SHORE ROADS AND EXPOSED PARKING LOTS COULD
BECOME COVERED WITH SOME SURGE WATER. DRIVING CONDITIONS
DANGEROUS IN PLACES WHERE SURGE WATER COVERS THE ROAD.
- MODERATE BEACH EROSION. HEAVY SURF ALSO BREACHING DUNES, MAINLY
IN USUALLY VULNERABLE LOCATIONS. STRONG RIP CURRENTS.
- MINOR DAMAGE TO MARINAS, DOCKS, BOARDWALKS, AND PIERS. A FEW
SMALL CRAFT BROKEN AWAY FROM MOORINGS.
ELSEWHERE ACROSS THE RIO GRANDE VALLEY AND DEEP SOUTH TEXAS, LITTLE
TO NO IMPACT IS ANTICIPATED.
PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------
* OTHER PREPAREDNESS INFORMATION:
KEEP CELL PHONES WELL CHARGED. CELL PHONE CHARGERS FOR AUTOMOBILES CAN
BE HELPFUL, BUT BE AWARE OF YOUR RISK FOR DEADLY CARBON MONOXIDE
POISONING IF YOUR CAR IS LEFT IDLING IN A GARAGE OR OTHER POORLY
VENTILATED AREA.
RAPIDLY RISING FLOOD WATERS ARE DEADLY. IF YOU ARE IN A FLOOD-PRONE
AREA, CONSIDER MOVING TO HIGHER GROUND. NEVER DRIVE THROUGH A FLOODED
ROADWAY. REMEMBER, TURN AROUND DON'T DROWN!
CLOSELY MONITOR WEATHER.GOV, NOAA WEATHER RADIO OR LOCAL NEWS OUTLETS
FOR OFFICIAL STORM INFORMATION. BE READY TO ADAPT TO POSSIBLE CHANGES
TO THE FORECAST. ENSURE YOU HAVE MULTIPLE WAYS TO RECEIVE WEATHER
WARNINGS.
* ADDITIONAL SOURCES OF INFORMATION:
- FOR INFORMATION ON APPROPRIATE PREPARATIONS SEE READY.GOV
- FOR INFORMATION ON CREATING AN EMERGENCY PLAN SEE GETAGAMEPLAN.ORG
- FOR ADDITIONAL DISASTER PREPAREDNESS INFORMATION SEE REDCROSS.ORG
NEXT UPDATE
-----------
THE NEXT LOCAL STATEMENT WILL BE ISSUED BY THE NATIONAL WEATHER
SERVICE IN BROWNSVILLE TX AROUND 10 AM CDT, OR SOONER IF CONDITIONS
WARRANT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
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