Alert archive / North Carolina / Flash Flood Warnings in 2003

Flash Flood Warning 16, NWS Greenville-Spartanburg, SC

April 30, 2003Davie County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Apr 30, 2003, 9:00 PM EDT for Davie County, North Carolina. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 30, 2003, 9:00 PM EDT (01:00 UTC)
Expired: Apr 30, 2003, 11:00 PM EDT
In force: 2 hr
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Davie County, NC

The radar

The Roanoke radar (KFCX), 124 km from the middle of the area, began a volume at 01:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.0 hours before the alert went out and 60 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 802 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 1279 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS52 KGSP 010102
FFWGSP
NCC059-010300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
900 PM EDT WED APR 30 2003

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN DAVIE COUNTY IN THE PIEDMONT OF NORTH CAROLINA

* UNTIL 1100 PM EDT

* AT 900 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SERIES
  OF SHOWERS AND THUNDERSTORMS MOVING REPEATEDLY OVER SOUTHERN DAVIE
  COUNTY. RADAR INDICATED THAT NEARLY 3 INCHES OF RAIN HAVE FALLEN
  ACROSS THE AREA FROM MOCKSVILLE SOUTHWARD TO THE ROWAN COUNTY
  BORDER. 

* FLASH FLOODING IS EXPECTED TO DEVELOP ALONG HUNTING CREEK AND 
  LITTLE CREEK SOUTHWEST OF MOCKSVILLE. DAVIE ACADEMY ROAD COULD BE
  THREATENED BY RISING WATER...AS WELL AS OTHER SECONDARY ROADS
  AROUND DAVIE ACADEMY CORNERS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS 
SWIFTLY FLOWING WATERS ON FOOT OR IN A VEHICLE. BE ESPECIALLY 
CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF 
FLOODS AND FLASH FLOODS.
$$
HG/SAB

1 follow-up statement

000 
WGUS72 KGSP 010214
FFSGSP
NCC059-010300-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1009 PM EDT WED APR 30 2003

...A FLASH FLOOD WARNING CONTINUES UNTIL 1100 PM EDT FOR SOUTHERN 
DAVIE COUNTY...

AT 1009 PM...NATIONAL WEATHER SERVICE RADAR INDICATED THAT SHOWERS 
AND THUNDERSTORMS WERE SLOWLY TAPERING OFF ACROSS SOUTHERN DAVIE 
COUNTY. FLOODING HAS ALREADY BEEN REPORTED AT A RESIDENCE IN 
MOCKSVILLE...AND ADDITIONAL FLOODING IS POSSIBLE THROUGH 11 
PM...GENERALLY SOUTH OF INTERSTATE 40. HUNTING CREEK AND LITTLE 
CREEK ARE RUNNING QUITE HIGH AND MAY SPILL OUT OF THEIR BANKS IN 
SOME LOCATIONS.

DUE TO THE TORRENTIAL RAINFALL FROM THESE THUNDERSTORMS...SEVERE 
URBAN FLOODING CAN DEVELOP IN AREAS SUCH AS UNDERPASSES...AND LOW 
AREAS WHERE WATER TENDS TO COLLECT. DO NOT ATTEMPT TO CROSS FLOODED 
ROADS...THE ROAD COULD BE WASHED OUT FROM THE FLOW OF THE 
WATER...AND YOUR CAR COULD BE SWEPT AWAY BY THE SWIFTLY MOVING WATER.
$$
HG

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this flash flood warning went out at Apr 30, 3:25 PM EDT, 5 hours 35 minutes earlier.

Area forecast discussion, Apr 30, 3:25 PM EDT, 5 hours 35 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
325 PM EDT WED APR 30 2003

SH AND TS ARE ONGOING ACROSS THE SPINE OF THE APPALACHIANS AND
ACROSS THE PIEDMONT OF NC. EXPECT THAT THE ACTIVITY WILL INCREASE IN
COVERAGE FURTHER EAST AND WILL REMAIN INTO THE EVENING. SEVERE
CHANCES STILL LOOK GOOD AS PARAMETERS REMAIN FAVORABLE...IN
FACT...DEWPOINTS HAVE REMAINED HIGHER THAN EXPECTED RESULTING IN
CAPES AROUND 3000 J/KG AT PEAK HEATING. WILL TREND POPS FROM LIKELY
OVER THE NRN MTNS DOWN TO 30S EAST OF CLT. AFTER MIDNIGHT...WILL
DECREASE POPS TO SCHC AND WILL ADD PATCHY FOG. FOG COULD BECOME
DENSE IN SPOTS AS MIN WILL SURPASS CROSSOVER TEMPS.

FORECAST CHANGES A BIT FOR THU AS MODELS HAVE ADOPTED THE COASTAL
LOW OFF THE SE. WILL FOLLOW MAINLY THE ETA ON THIS FEATURE AS AGAIN
THE GFS IS OVER DEVELOPING THE LOW. THE CIRCULATION AROUND THE LOW
WILL ADVECT IN MORE STABLE AIR OVER THE NE CWA...BUT AREAS IN THE
WEST WILL FEEL LITTLE DIFFERENCE. WILL GO SCHC OVER THE NRN PIEDMONT
OF NC AND MAINTAIN CHC OVER THE REST OF THE CWA. WITH THE
DEVELOPMENT OF THE COASTAL SYSTEM AS THE MAIN LOW...THE COLD FRONT
THAT WAS PROGGED FOR FRI HAS SLOWED. IN FACT...FRONT MAY STALL OVER
THE CWA FOR SAT...WITH ETA HOLDING ONTO SOME CAPE. WILL DELAY ONSET
OF PRECIP TO FRI AFTERNOON AND HOLD ONTO MENTION UNTIL MIDNIGHT. DUE
TO THIS CHANGE WILL LEAN AGAINST ADDING POPS TO THE SAT PERIOD...BUT
WILL INCREASE POPS TO SCHC TO TREND INTO THE DIRECTION OF MENTION.

HIGH PRESSURE IS EXPECTED TO RIDGE DOWN AS IT MOVES PAST TO THE
NORTH ON SUNDAY AND EARLY MONDAY. GUIDANCE IS FOLLOWED CLOSELY HERE.
ONCE THE HIGH IS OFFSHORE MONDAY AFTERNOON AND A WEAK WARM FRONT
LIFTS NORTH...MOISTURE SHOULD BEGIN TO RETURN. WILL INTRODUCE A
CHANCE OF THUNDERSTORMS ACROSS THE MOUNTAINS AND FOOTHILLS FOR THE
AFTERNOON. WITH THE MOISTENING RETURN FLOW...HAVE RAISED LOW TEMP
MONDAY NIGHT BY A FEW DEGREES ACROSS SC/NE GA. BY TUESDAY...WE
SHOULD BE SET UP FOR SCATTERED AFTERNOON AND EVENING CONVECTION WITH
THE HIGH OFF THE SOUTHEAST COAST AND A SURFACE FRONT TO THE WEST.
THE ONLY REAL CHANGE HERE IS TO KEEP A SLIGHT CHANCE OF SHOWERS
THROUGH WEDNESDAY MORNING BASED ON THE POSITION OF THE COLD FRONT
DEPICTED BY HPC AT 12Z WEDNESDAY.

FCSTID =   16
GSP   58  79  59  82 /  50  30  30  40
AND   59  80  59  83 /  50  30  30  40
CLT   57  81  59  82 /  40  30  30  40
HKY   58  78  58  79 /  50  20  20  40
AVL   56  75  55  78 /  50  30  30  40

.GSP...
GA...NONE.
NC...NONE.
SC...NONE.

NED/MOORE

Hazardous weather outlook, Apr 30, 6:03 AM EDT, 14 hours 57 minutes before

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-301200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
603 AM EDT WED APR 30 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA...
UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA.

.DAY ONE...

A FEW SEVERE THUNDERSTORMS WILL BE POSSIBLE LATER TODAY. FOR
FURTHER DETAILS...PLEASE REFER TO THE LATEST SEVERE WEATHER
OUTLOOK...SPSGSP...ISSUED BY THIS OFFICE.

.DAYS TWO THROUGH SEVEN...

EXPECT A DAILY CHANCE OF THUNDERSTORMS BOTH THURSDAY AND FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

In the hours before

Local storm report, Apr 30, 4:40 PM EDT, 4 hours 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
440 PM EDT WED APR 30 2003

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

335 PM     7 E MOCKSVILLE            NC   1.00 INCH HAIL
04/30/03   DAVIE                          LETTER CARRIERS WITH THE
                                          POSTAL SERVICE REPORTED
                                          SEVERAL INSTANCES OF HAIL
                                          BETWEEN DIME AND QUARTER
                                          SIZE BETWEEN MOCKSVILLE
                                          AND FORK CHURCH.

BURRUS

Local storm report, Apr 30, 4:53 PM EDT, 4 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
453 PM EDT WED APR 30 2003

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

452 PM     5 NE SYLVA                NC   .75 INCH HAIL
04/30/03   JACKSON                        SKYWARN SPOTTER REPORTS
                                          DIME SIZE HAIL.

HG

Local storm report, Apr 30, 5:59 PM EDT, 3 hours 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
559 PM EDT WED APR 30 2003

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

433 PM     CELO                      NC   1.00 INCH HAIL
04/30/03   YANCEY                         THREE HAIL EVENTS WITH
                                          QUARTER SIZE TO PEA SIZE
                                          HAIL.  STRONG WINDS AND
                                          2.50 RAINFALL.

TJB

Local storm report, Apr 30, 6:05 PM EDT, 2 hours 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
605 PM EDT WED APR 30 2003

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

600 PM     MT MITCHELL ST PARK       NC   1.00 INCH HAIL
04/30/03   YANCEY                         RELAYED BY BLUE RIDGE
                                          PKWY DISPATCH.

JAT

Special weather statement, Apr 30, 7:07 PM EDT, 1 hour 53 minutes before

NCZ035>037-056-057-010000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
707 PM EDT WED APR 30 2003

...STRONG THUNDERSTORMS THIS EVENING FOR THE NORTHERN FOOTHILLS AND
NORTHWEST PIEDMONT OF NORTH CAROLINA...

AT 705 PM...WEATHER RADAR SHOWED NUMEROUS STRONG SHOWERS AND
THUNDERSTORMS ACROSS THE NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT
OF NORTH CAROLINA. THE THREE STRONGEST STORMS WERE IN THE VICINITY
OF TAYLORSVILLE IN ALEXANDER COUNTY...NEAR CENTRAL IN NORTHWEST
IREDELL COUNTY...AND JUST SOUTH OF FARMINGTON IN DAVIE COUNTY. THE
STORMS WERE SLOWLY WEAKENING AND DRIFTING TO THE NORTH.

ANY OF THESE STORMS COULD PRODUCE HAIL AROUND A HALF INCH IN
DIAMETER...OR WIND GUSTS TO 40 MPH OR A LITTLE HIGHER. THERE WAS ONE
REPORT OF DIME SIZED HAIL FROM THE EMERGENCY MANAGER IN ALEXANDER
COUNTY. WITH LOSS OF HEATING...THESE STORMS WILL LIKELY NOT GET MUCH
STRONGER.

STAY TUNED TO NOAA WEATHER RADIO OR THE MEDIA FOR THE LATEST WEATHER
INFORMATION.

BURRUS

Local storm report, Apr 30, 7:09 PM EDT, 1 hour 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
709 PM EDT WED APR 30 2003

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

702 PM     TAYLORSVILLE              NC   .75 INCH HAIL
04/30/03   ALEXANDER                      EMERGENCY MANAGER
                                          REPORTED HAIL AS LARGE AS
                                          A DIME.

BURRUS

Nearby

Flash Flood Warnings in North Carolina, 2003 Every flash flood warning in 2003

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.