264
WGUS82 KGSP 212039
FLSGSP
FLOOD ADVISORY
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
439 PM EDT FRI AUG 21 2026
NCC119-179-220245-
/O.NEW.KGSP.FA.Y.0094.260821T2039Z-260822T0245Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MECKLENBURG NC-UNION NC-
439 PM EDT FRI AUG 21 2026
..FLOOD ADVISORY IN EFFECT UNTIL 1045 PM EDT THIS EVENING
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS EXPECTED.
* WHERE...SOUTHEASTERN MECKLENBURG COUNTY IN THE PIEDMONT OF NORTH
CAROLINA...
NORTHWESTERN UNION NC COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
* WHEN...UNTIL 1045 PM EDT FRIDAY.
* IMPACTS...NUISANCE FLOODING OF LOW-LYING AREAS ADJACENT TO STREAMS
AND OTHER POOR-DRAINAGE AREAS, INCLUDING FARMLAND, PARKS,
GREENWAYS, BOAT-ACCESS AREAS, GOLF COURSES, UNDERPASSES, AND
PARKING LOTS. ISOLATED, SHALLOW FLOWS OVER ROADWAYS IS POSSIBLE.
A FEW FLOOD-PRONE, LOW-WATER CROSSINGS MAY BECOME IMPASSIBLE. A
SMALL CULVERT WASHOUT OR TWO IS POSSIBLE.
* ADDITIONAL DETAILS...
- AT 438 PM EDT, DOPPLER RADAR AND AUTOMATED GAUGES INDICATED
TORRENTIAL RAIN DUE TO THUNDERSTORMS OVER MATTHEWS, WEDDINGTON,
WESLEY CHAPEL, STALLINGS, INDIAN TRAIL, AND HEMBY BRIDGE IN THE
HEADWATERS OF TWELVEMILE CREEK AND CROOKED CREEK. ISOLATED
GAUGES HAVE ALREADY REPORTED 1-2.00 INCHES OF RAINFALL IN LESS
THAN 45 MINUTES WITH AN ADDITIONAL 0.50-1.00 INCHES LIKELY OVER
THE NEXT 15-30 MINUTES AS THESE STORMS GRADUALLY PUSH EAST OF THE
AREA. THESE RATES ARE HEAVY ENOUGH OVER A SHORT ENOUGH PERIOD OF
TIME TO QUICKLY OVERWHELM STORM DRAINS AND CAUSE RAPID
DEVELOPMENT OF NUISANCE FLOODING ON AREA ROADWAYS, INCLUDING IN
PARKING LOTS, INTERSECTIONS, AND UNDERPASSES.
EXCESSIVE RUNOFF WILL WORK INTO AREA STREAMS AND MAY CAUSE RAPID
RISES OF HEADWATER STREAMS, INCLUDING ALONG WEST FORK TWELVEMILE
CREEK NEAR ANTIOCH CHURCH RD AND WEDDINGTON OPTIMIST PARK,
CULVERT BRANCH NEAR TWELVE MILE CREEK RD, SOUTH FORK CROOKED
CREEK NEAR INDIAN TRAIL RD, S FORK RD, AND US 74, AND NORTH FORK
CROOKED CREEK NEAR IDLEWILD RD. THE CONFIDENCE IN STREAM
FLOODING IS LOWER DUE TO THE EXPECTED MOVEMENT OF THESE
THUNDERSTORMS CELLS TO THE EAST AND OUTSIDE THE AREA OF CONCERN
OVER THE NEXT 30 MINUTES.
- SOME LOCATIONS THAT MAY EXPERIENCE NUISANCE FLOODINGINCLUDE...
MATTHEWS, INDIAN TRAIL, WEDDINGTON, STALLINGS, WESLEY CHAPEL, AND
HEMBY BRIDGE
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE AWARE OF YOUR SURROUNDINGS AND DO NOT DRIVE ON FLOODED ROADS.
LAT...LON 3502 8081 3503 8080 3512 8075 3515 8070
3509 8054 3502 8062 3497 8062 3496 8075
3500 8084
JMP
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