Alert archive / North Carolina / Flash Flood Warnings in 2012

Flash Flood Warning 8, NWS Greenville-Spartanburg, SC

July 18, 2012Cabarrus County, Rowan County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Jul 18, 2012, 5:53 PM EDT for Cabarrus County, Rowan County, North Carolina. It was in force for 2 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 18, 2012, 5:53 PM EDT (21:53 UTC)
Expired
Jul 18, 2012, 7:54 PM EDT
In force
2 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

Counties Cabarrus County, NC, Rowan County, NC

The radar

The Roanoke radar (KFCX), 162 km from the middle of the area, began a volume at 21:57 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.

What was reported inside it

TimeReportWhereRemark
Jul 18, 6:10 PM EDTFLASH FLOOD4 Ese Salisbury, NCDUNNS MOUNTAIN ROAD FLOODED

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 17 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.9 hours before the alert went out and 79 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2012-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1738 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2012-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1738 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
1050 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
-4 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.

444 
WGUS52 KGSP 182153
FFWGSP
NCC025-159-190100-
/O.NEW.KGSP.FF.W.0008.120718T2153Z-120719T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
553 PM EDT WED JUL 18 2012

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN CABARRUS COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
  ROWAN COUNTY IN THE PIEDMONT OF NORTH CAROLINA...

* UNTIL 900 PM EDT

* AT 552 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. DOPPLER RADAR RAINFALL RATES WERE INCREASING TO OVER
  TWO INCHES PER HOURS AND WILL CONTINUE TO INCREASE AND DEVELOP
  ALONG THE I-85 CORRIDOR.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  CONCORD...SALISBURY...CHARLOTTE MOTOR SPEEDWAY...CHINA GROVE...
  ENOCHVILLE...GRANITE QUARRY...HARRISBURG...HIGH ROCK LAKE...
  KANNAPOLIS...LANDIS...ROCKWELL AND SPENCER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3531 8068 3547 8078 3550 8079 3551 8074
      3554 8074 3576 8047 3573 8042 3573 8034
      3571 8032 3568 8033 3564 8028 3563 8026

$$

CSH
3 follow-up statements
164 
WGUS72 KGSP 182226
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
626 PM EDT WED JUL 18 2012

NCC025-159-190100-
/O.CON.KGSP.FF.W.0008.000000T0000Z-120719T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CABARRUS NC-ROWAN NC-
626 PM EDT WED JUL 18 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN ROWAN AND
NORTHWESTERN CABARRUS COUNTIES UNTIL 900 PM EDT...

AT 621 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL LINGERING ACROSS THE WARNED 
AREA. RADAR RAINFALL ESTIMATES THAT LOCALLY AS MUCH AS TWO TO
TWO AND ONE HALF INCHES OF RAIN HAS FALLEN ACROSS KANNAPOLIS AND
ADDITIONAL THUNDERSTORMS SHOULD REDEVELOP ACROSS THE WARNED AREA.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL RESULT IN LOCALLY SEVERE 
URBAN FLOODING AROUND KANNAPOLIS. TYPICAL FLOOD PRONE AREAS IN
THE WARNED AREA INCLUDE FAIRVIEW STREET AT MCLAIN STREET AND ALONG 
BUFFALO CREEK NEAR THE KANNAPOLIS VILLAGE REST HOME AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3531 8068 3533 8069 3547 8077 3551 8071
      3573 8043 3572 8038 3573 8034 3571 8032
      3568 8033 3564 8028 3563 8026

$$

CSH
521 
WGUS72 KGSP 182303
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
703 PM EDT WED JUL 18 2012

NCC159-182312-
/O.CAN.KGSP.FF.W.0008.000000T0000Z-120719T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ROWAN NC-
703 PM EDT WED JUL 18 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EASTERN ROWAN
COUNTY IS CANCELLED...

HEAVY RAIN ACROSS THE WARNED AREA WILL CONTINUE TO SLACK OFF THIS 
EVENING. NO FLOODING WAS REPORTED FROM THE EARLIER HEAVY 
THUNDERSTORMS.

LAT...LON 3550 8070 3551 8069 3550 8068 3550 8044
      3531 8068 3534 8069 3547 8077 3551 8071

$$

NCC025-190100-
/O.CON.KGSP.FF.W.0008.000000T0000Z-120719T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CABARRUS NC-
703 PM EDT WED JUL 18 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHWESTERN CABARRUS
COUNTY UNTIL 900 PM EDT...

AT 657 PM EDT...RADAR RAINFALL ESTIMATES AND AUTOMATED RAINGAGES
INDICATE THAT 2 TO 3 INCHES OF RAIN HAD FALLEN FROM THE CONCORD
AIRPORT THROUGH PARTS OF KANNAPOLIS. THE RADAR INDICATES THAT
RAIN WAS DIMINISHING AND IT THIS TREND CONTINUES...THE WARNING
WILL BE CANCELLED EARLY.

RUNOFF FROM THIS EXCESSIVE RAINFALL MAY CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING 
INCLUDE...CONCORD...CHARLOTTE MOTOR SPEEDWAY...HARRISBURG AND 
KANNAPOLIS...MAINLY ACROSS THE HEADWATERS OF THE ROCKY RIVER...
CODDLE...IRISH BUFFALO AND COLDWATER CREEKS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

&&

LAT...LON 3550 8070 3551 8069 3550 8068 3550 8044
      3531 8068 3534 8069 3547 8077 3551 8071

$$

CSH
795 
WGUS72 KGSP 182354
FFSGSP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
754 PM EDT WED JUL 18 2012

NCC025-190008-
/O.CAN.KGSP.FF.W.0008.000000T0000Z-120719T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CABARRUS NC-
754 PM EDT WED JUL 18 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHWESTERN
CABARRUS COUNTY IS CANCELLED...

ANY EXCESS RUNOFF FROM EARLIER HEAVY RAIN HAS ENDED OVER THE WARNED 
AREA. STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE 
BEGINNING TO RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3550 8070 3551 8069 3550 8068 3550 8044
      3531 8068 3534 8069 3547 8077 3551 8071

$$

CSH

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 Jul 18, 4:38 PM EDT, 1 hour 15 minutes earlier.

Area forecast discussion, Jul 18, 4:38 PM EDT, 1 hour 15 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
438 PM EDT WED JUL 18 2012

.SYNOPSIS...
HIGH PRESSURE WILL WEAKEN AND SHIFT SOUTH OVER THE NEXT FEW DAYS.
THIS WILL ALLOW A FRONTAL BOUNDARY OVER THE OHIO VALLEY TO DROP
SOUTH...INTO THE CAROLINAS LATE FRIDAY. THE FRONT WILL REMAIN
OVER OR JUST SOUTH OF THE REGION THROUGH THE WEEKEND AND DISSIPATE
ON MONDAY.

&&

.NEAR TERM /THROUGH THURSDAY/...
AT 430 PM...SCATTERED/NUMEROUS CONVECTIVE COVERAGE (50-70 POP) IS
EXPECTED TO CONTINUE TO EXPAND INTO THE FOOTHILLS AND PIEDMONT
THROUGH THE EARLY EVENING...AS OUTFLOWS FROM MTN CONVECTION...AND
CONVERGENCE ALONG LEE/PIEDMONT TROUGH WILL CONTINUE TO INTERACT WITH
2500-3500 J/KG OF SB-CAPE. WEAK SHEAR AND MODERATE TO HIGH LEVELS OF
DOWNDRAFT CAPE WILL CONTINUE TO ALLOW FOR GOOD MICROBURST POTENTIAL
FROM THE STRONGER STORMS (ESP IN THE PIEDMONT)...WITH BRIEF LARGE
HAIL ALSO BEING POSSIBLE. WILL ATTEMPT TO CAPTURE HOURLY TEMP TRENDS
IN THE WAKE OF OUTFLOW BOUNDARY MOVING OFF THE BLUE RIDGE...WHICH
SHOULD COOL TEMPS 10-15 DEGREES.

IMPULSES MOVING THROUGH THE BASE DO THE AMPLIFYING TROUGH ON
THURSDAY WILL SUPPORT GREATER POPS THAN IN PREVIOUS DAYS. ACTIVITY
IS EXPECTED TO GET GOING EARLIER THAN USUAL IN THE MOUNTAINS...WITH
SUBSTANTIAL COVERAGE BY MIDDAY. ONCE AGAIN... MODEL SOUNDINGS ARE
SUPPORTIVE OF PULSE SEVERE THUNDERSTORMS...AND LIGHT STEERING
CURRENTS WILL SUPPORT HEAVY RAINFALL ACCUMULATIONS. A COLD FRONT
APPROACHING FORM THE NORTH WILL STILL BE IN VA...TOO FAR AWAY TO
HAVE AN IMPACT THROUGH THURSDAY AFTERNOON. MAXIMUM TEMPERATURES WILL
BE ABOVE NORMAL AS TROUGH AMPLIFICATION AND FALLING HEIGHTS ALOFT
TAKE PLACE LATER IN THE DAY. THE COMBINATION OF WARMTH AND MOISTURE
WILL DRIVE THE HEAT INDEX TO NEAR 100 AGAIN ON THURSDAY IN THE
PIEDMONT...SEVERAL DEGREES BELOW THE ADVISORY CRITERIA OF 105
DEGREES.

&&

.SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY/...
AS OF 250 PM WEDNESDAY...EXPECT CONVECTION THU NITE TO BE MAINLY
DIURNAL...BUT ISOLATED CELLS COULD LINGER IN THE MTNS OVERNIGHT.
LOWS WILL BE ABOVE NORMAL.

A SHORT WAVE DIVES INTO THE OH VALLEY FRIDAY PUSHING A COLD FRONT
SOUTH TOWARD THE AREA. THIS WAVE SLOWLY MOVES SOUTH AND EAST TOWARD
THE VA TIDEWATER AND MID-ATLANTIC AREA. THE SFC FRONT WILL SLOWLY
PUSH INTO THE AREA ON SATURDAY. MOISTURE WILL BE COPIOUS AHEAD OF
AND ALONG THE FRONT. QG FORCING WILL BE WEAK...BUT LOW LEVEL
CONVERGENCE ALONG THE FRONT WILL BE DECENT...ALONG WITH UPPER LEVEL
DIVERGENCE ASSOCIATED WITH AN UPPER JET. THEREFORE...EXPECT NUMEROUS
SHOWERS AND THUNDERSTORMS FRIDAY...WITH NUMEROUS COVERAGE I-85 AND
SOUTH AND GOOD CHC NORTH SATURDAY. CONVECTION WILL STILL SHOW A
DIURNAL TREND...BUT WILL NOT DIMINISH UNTIL LATE AT NITE. WITH A
VERY MOIST AIR MASS AND SLOW MOVING STORMS...HEAVY RAIN WILL BE
POSSIBLE.

HIGHS FRIDAY STILL NEAR TO SLIGHTLY ABOVE NORMAL...THEN DROPS BELOW
NORMAL SATURDAY. LOWS FRIDAY NITE ABOVE NORMAL.

&&

.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
AS OF 1245 PM WEDNESDAY...THE LATEST GUIDANCE KEEPS A STATIONARY
FRONT OVER THE AREA SUNDAY. THE FRONT BEGINS TO WASH OUT MONDAY AS
THE BERMUDA HIGH POKES BACK INTO THE REGION FROM THE EAST.
HOWEVER...A SHEAR AXIS AND A BAND OF DEEP MOISTURE WILL REMAIN OVER
THE AREA MONDAY IN THE WEAKNESS BETWEEN THE BERMUDA HIGH AND THE
STRONG RIDGE OVER THE CENTRAL CONUS. THE RIDGE AND THE BERMUDA HIGH
MERGE TUESDAY AS A TROF MOVES OFF SHORE OF NEW ENGLAND...BUT THE
DEEP MOISTURE AND A LEE TROF REMAIN OVER MUCH OF THE SERN US. THE
CENTER OF THE RIDGE IS PUSHED SOUTH INTO THE GULF WEDNESDAY...BUT
RIDGE AXIS REMAINS OVER OUR AREA...AS ANOTHER TROF DROPS FROM CANADA
INTO THE NRN PLAINS. THIS HELPS PUSH A BACK DOOR COLD FRONT TOWARD
THE AREA DURING THE DAY.

ALTHOUGH A GOOD CHANCE OF CONVECTION AGAIN ON SUNDAY...GUIDANCE
DIFFERS ON BETTER CHANCES FOR ONE AREA OR ANOTHER. THEREFORE...HAVE
GONE WITH CHC POP FOR NOW. OTHERWISE...MAINLY DIURNAL CHC POP MON
THRU WED WITH THE MOISTURE AND WEAK FORCING IN PLACE. ABOVE NORMAL
LOWS AND BELOW NORMAL HIGHS AGAIN SUNDAY...THEN THE HEAT BUILDS WITH
THE RIDGE. HIGHS RISING INTO THE MID 90S BY WED WITH LOW TO MID 70S
EACH MORNING.

&&

.AVIATION /21Z WEDNESDAY THROUGH MONDAY/...
AT KCLT...SCATTERED CONVECTION IS EXPECTED THIS AFTERNOON. BASED THE
SLOWER THAN ANTICIPATED DEVELOPMENT...CONFIDENCE IS A LOWER FOR A
RESTRICTION...AND NONE WILL BE CARRIED AT THIS TIME. TS WITH A LOW
VFR CIG WILL BE CARRIED. LIGHT SW WINDS WILL PERSIST. A CONSENSUS OF
GUIDANCE DOES NOT SUPPORT DAYBREAK FOG ON THURSDAY. ALTHOUGH THE
CHANCE OF PRECIPITATION WILL INCREASE ON THURSDAY MORNING AS A FRONT
APPROACHES FORM THE NORTH...CHANCES ARE STILL TOO LOW MENTION A
RESTRICTION.

ELSEWHERE...CONVECTION WILL DEVELOP THIS AFTERNOON...WITH THE BEST
COVERAGE IN THE MOUNTAINS. A TEMPO FOR THUNDERSTORM BASED MVFR
RESTRICTIONS WILL BE CARRIED AT KAVL...WHILE FOOTHILLS SITES GET TS
AND A LOW VFR CIG WITH CB. LIGHT WINDS WILL REMAIN FROM THE SW TO
WSW...EXCEPT AT KAVL WHERE THEY WILL CHANNEL UP THE VALLEY FORM THE
NW. AT THIS TIME GUIDANCE PLACES FOG IN THE MOUNTAIN VALLEYS SW OF
KAVL. BASED ON THE TRENDS FROM THIS MORNING...FOG WILL BE CARRIED AT
KAVL AND KAND AS WELL. CHANCES FOR CONVECTION INCREASE ON THURSDAY
AS A FRONT APPROACHES FROM THE NORTH...BUT CONFIDENCE IS TOO LOW TO
CARRY A RESTRICTION.

OUTLOOK...SCATTERED THUNDERSTORMS WILL CONTINUE LATE
THURSDAY...ESPECIALLY OVER THE NC MOUNTAINS. A WEAK COLD FRONT WILL
REACH THE AREA ON FRIDAY...REMAINING INTO THE WEEKEND...AND
INCREASING THE CHANCE OF THUNDER...LOW CIGS...AND FOG.

AN EXPERIMENTAL AVIATION FORECAST CONSISTENCY TABLE SHOWING THE
PERCENTAGE OF GUIDANCE MEMBERS AGREEING WITH THE SCHEDULED ISSUANCE
CATEGORY IS AVAILABLE AT FOLLOWING LINK (USE LOWER CASE)...

WWW.WEATHER.GOV/GSP/AVIATION/TABLES.HTM

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
NC...NONE.
SC...NONE.

&&

SYNOPSIS...PAT
NEAR TERM...JAT/JDL
SHORT TERM...RWH
LONG TERM...RWH
AVIATION...JAT
Hazardous weather outlook, Jul 18, 4:07 PM EDT, 1 hour 46 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
407 PM EDT WED JUL 18 2012

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-192015-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER-
IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA-
ROWAN-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-
HENDERSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC-
CALDWELL MOUNTAINS-GREATER CALDWELL-BURKE MOUNTAINS-GREATER BURKE-
MCDOWELL MOUNTAINS-EASTERN MCDOWELL-RUTHERFORD MOUNTAINS-
GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-OCONEE MOUNTAINS-
PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-GREATER OCONEE-
GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-
ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
407 PM EDT WED JUL 18 2012

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

.DAY ONE...TONIGHT.

NUMEROUS SLOW MOVING THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER
THE REGION THROUGH THE EVENING. A FEW OF THE THUNDERSTORMS WILL
PRODUCE SMALL AREAS OF WIND DAMAGE AND HAIL UP TO THE SIZE OF
QUARTERS. LOCALLY VERY HEAVY RAINFALL IS ALSO POSSIBLE WITH THE
STRONGER STORMS AND FLOODING OF POOR DRAINAGE AREAS MAY DEVELOP.
MANY OF THE STORMS WILL PRODUCE FREQUENT CLOUD TO GROUND LIGHTING.

THE EFFECTS OF HEAVY RAIN AND SATURATED SOILS WILL ENHANCE THE
THREAT OF FALLING TREES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE
HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE.

In the hours before

Local storm report, Jul 18, 5:11 PM EDT, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
511 PM EDT WED JUL 18 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0435 PM     TSTM WND DMG     3 S GLENWOOD            35.57N 81.98W
07/18/2012                   MCDOWELL           NC   911 CALL CENTER

            1 TREE DOWN

0435 PM     TSTM WND DMG     3 N THERMAL CITY        35.56N 81.98W
07/18/2012                   MCDOWELL           NC   911 CALL CENTER

            1 TREE DOWN NEAR SUGAR HILL

&&

RWH
Local storm report, Jul 18, 5:13 PM EDT, 40 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
513 PM EDT WED JUL 18 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0335 PM     TSTM WND DMG     3 N THERMAL CITY        35.56N 81.98W
07/18/2012                   MCDOWELL           NC   911 CALL CENTER

            1 TREE DOWN NEAR SUGAR HILL

0335 PM     TSTM WND DMG     3 S GLENWOOD            35.57N 81.98W
07/18/2012                   MCDOWELL           NC   911 CALL CENTER

            1 TREE DOWN

&&

RWH
Special weather statement, Jul 18, 5:20 PM EDT, 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
520 PM EDT WED JUL 18 2012

NCZ057-071-072-182145-
CABARRUS-MECKLENBURG-ROWAN-
520 PM EDT WED JUL 18 2012

...STRONG THUNDERSTORMS WILL AFFECT CENTRAL MECKLENBURG...ROWAN AND
WESTERN CABARRUS COUNTIES THROUGH 545 PM EDT...

AT 520 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 3 MILES EAST OF
SPENCER TO 4 MILES NORTHEAST OF CROFT. THIS LINE WAS NEARLY
STATIONARY.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  KANNAPOLIS...
  GRANITE QUARRY...
  HIGH ROCK LAKE...

PEA SIZE HAIL...WIND GUSTS UP TO 40 MPH...AND TORRENTIAL RAIN ARE
EXPECTED WITH THESE STORMS.

LAT...LON 3519 8078 3544 8089 3551 8081 3551 8074
      3556 8074 3577 8048 3574 8045 3573 8042
      3573 8034 3571 8032 3568 8033 3564 8028
      3562 8024

HG
Special weather statement, Jul 18, 5:23 PM EDT, 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
523 PM EDT WED JUL 18 2012

SCZ006-010-182200-
ANDERSON-GREATER GREENVILLE-
523 PM EDT WED JUL 18 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN ANDERSON AND
SOUTHERN GREENVILLE COUNTIES THROUGH 600 PM EDT...

AT 523 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES WEST OF WILLIAMSTON...OR 8 MILES
NORTHEAST OF ANDERSON...MOVING NORTHEAST AT 10 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  WILLIAMSTON...
  PIEDMONT...

PEA SIZE HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAIN ARE
EXPECTED WITH THIS STORM.

LAT...LON 3481 8241 3460 8230 3449 8265 3467 8271

HG
Special weather statement, Jul 18, 5:50 PM EDT, 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
550 PM EDT WED JUL 18 2012

SCZ012-013-182215-
LAURENS-UNION-
550 PM EDT WED JUL 18 2012

...STRONG THUNDERSTORMS WILL AFFECT LAURENS AND SOUTHERN UNION
COUNTIES THROUGH 615 PM EDT...

AT 550 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES SOUTHEAST OF
SEDALIA TO 3 MILES NORTH OF WATERLOO...MOVING SOUTH AT 5 MPH.

THESE STORMS WILL IMPACT LOCATIONS NEAR...
  JOANNA...

PEA SIZE HAIL...WIND GUSTS UP TO 40 MPH...AND TORRENTIAL RAIN ARE
EXPECTED WITH THESE STORMS.

LAT...LON 3430 8209 3453 8215 3461 8192 3458 8187
      3464 8184 3475 8157 3449 8147 3444 8154
      3451 8160 3452 8164 3444 8173 3436 8178
      3427 8206

HG
Local storm report, Jul 18, 5:52 PM EDT, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
552 PM EDT WED JUL 18 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0535 PM     TSTM WND DMG     5 SSE UNION             34.65N 81.58W
07/18/2012                   UNION              SC   911 CALL CENTER

            TREE DOWN AT 600 BLOCK OF BERRY FARM RD

&&

RWH

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 18, 12:42 PM EDTAreal Flood AdvisoryGSPHaywood, Swain78 min
Jul 18, 1:09 PM EDTSpecial Weather StatementGSPAvery, Buncombe, Graham, Haywood, Jackson, Macon and 4 more36 min
Jul 18, 1:24 PM EDTSevere Thunderstorm WarningGSPYancey34 min
Jul 18, 1:51 PM EDTSpecial Weather StatementGSPAvery24 min
Jul 18, 2:07 PM EDTSpecial Weather StatementGSPHenderson38 min
Jul 18, 2:16 PM EDTAreal Flood AdvisoryGSPBurke, Caldwell104 min
Jul 18, 2:23 PM EDTSevere Thunderstorm WarningGSPHaywood, Henderson, Transylvania37 min
Jul 18, 2:45 PM EDTSpecial Weather StatementGSPMcDowell45 min
Jul 18, 2:46 PM EDTSpecial Weather StatementGSPMcDowell44 min
Jul 18, 3:04 PM EDTSpecial Weather StatementGSPTransylvania26 min
Jul 18, 3:15 PM EDTSpecial Weather StatementGSPMcDowell30 min
Jul 18, 3:24 PM EDTSpecial Weather StatementGSPHenderson36 min
Jul 18, 3:27 PM EDTSevere Thunderstorm WarningGSPMcDowell, Rutherford46 min
Jul 18, 3:30 PM EDTSpecial Weather StatementGSPAlexander45 min
Jul 18, 3:39 PM EDTSevere Thunderstorm WarningGSPAlexander, Burke, Caldwell, Catawba36 min
Jul 18, 3:53 PM EDTSevere Thunderstorm WarningGSPHenderson, Polk67 min
Jul 18, 4:04 PM EDTSpecial Weather StatementGSPMadison41 min
Jul 18, 4:49 PM EDTSpecial Weather StatementGSPUnion41 min
Jul 18, 5:14 PM EDTSevere Thunderstorm WarningGSPGaston, Lincoln, Mecklenburg12 min
Jul 18, 5:16 PM EDTSevere Thunderstorm WarningGSPGaston39 min
Jul 18, 5:20 PM EDTSpecial Weather StatementGSPCabarrus, Rowan25 min
Jul 18, 5:37 PM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg, Rowan53 min
Jul 18, 5:40 PM EDTSevere Thunderstorm WarningGSPGaston, Mecklenburg44 min
Jul 18, 6:29 PM EDTSevere Thunderstorm WarningGSPCabarrus, Rowan50 min

Nearby

Flash Flood Warnings in North Carolina, 2012Every flash flood warning in 2012

Sources

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