Alert archive / North Carolina / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 264, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 18, 2014, 5:48 PM EDT for Catawba County, Iredell County, Rowan County, North Carolina. It was in force for 57 min. 2 reports 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
- Aug 18, 2014, 5:48 PM EDT (21:48 UTC)
- Expired
- Aug 18, 2014, 6:45 PM EDT
- In force
- 57 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
Counties Catawba County, NC, Iredell County, NC, Rowan County, NC
The radar
The Roanoke radar (KFCX), 150 km from the middle of the area, began a volume at 21:49 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 18, 5:56 PM EDT | TSTM WND DMG | Salisbury, NC | 1 TREE BLOWN DOWN AT 714 PARK AVE IN SALISBURY, NC. |
| Aug 18, 6:00 PM EDT | TSTM WND DMG | 1 Ene Salisbury, NC | A TREE DOWN ON LIBERTY ST NEAR FULTON ST. |
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 2 storm reports to this severe thunderstorm warning; the first came 8 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, 9.8 hours before the alert went out and 71 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.
- Mixed-layer CAPE
- 429 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 1211 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
491
WUUS52 KGSP 182148
SVRGSP
NCC035-097-159-182245-
/O.NEW.KGSP.SV.W.0264.140818T2148Z-140818T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
548 PM EDT MON AUG 18 2014
THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN CATAWBA COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
SOUTHERN IREDELL COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
ROWAN COUNTY IN THE PIEDMONT OF NORTH CAROLINA...
* UNTIL 645 PM EDT
* AT 544 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM SPENCER TO TERRELL...AND MOVING
SOUTHEAST AT 25 MPH.
* SEVERE THUNDERSTORMS WILL IMPACT LOCATIONS NEAR...
SPENCER.
SALISBURY AND MOORESVILLE.
HIGH ROCK LAKE...GRANITE QUARRY AND CHINA GROVE.
LANDIS.
ROCKWELL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THESE STORMS ARE CAPABLE OF BLOWING DOWN SCATTERED TREES AND POWER
LINES. SEEK SHELTER INSIDE AN INTERIOR ROOM.
LAKE NORMAN IS IN THE PATH OF THIS LINE OF SEVERE THUNDERSTORMS.
BOATERS SHOULD SEEK IMMEDIATE SHELTER ONSHORE.
THESE SEVERE THUNDERSTORMS ARE ALSO PRODUCING FREQUENT AND INTENSE
LIGHTNING. TURN OFF ELECTRICAL APPLIANCES. DO NOT USE CORDED
TELEPHONES. DO NOT TAKE A BATH OR SHOWER.
PLEASE REPORT DAMAGING WINDS...HAIL...OR FLOODING TO THE NATIONAL
WEATHER SERVICE GREENVILLE SPARTANBURG BY CALLING TOLL FREE...1...
800...2 6 7...8 1 0 1...OR BY POSTING ON OUR FACEBOOK PAGE...OR TWEET
IT USING HASHTAG NWSGSP. YOUR MESSAGE SHOULD DESCRIBE THE EVENT AND
SPECIFIC LOCATION WHERE IT OCCURRED.
&&
LAT...LON 3551 8019 3556 8104 3572 8106 3583 8069
3581 8056 3578 8053 3578 8048 3574 8045
3573 8038 3559 8022
TIME...MOT...LOC 2148Z 314DEG 20KT 3573 8044 3559 8095
$$
NED3 follow-up statements
757
WWUS52 KGSP 182209
SVSGSP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
609 PM EDT MON AUG 18 2014
NCC035-097-159-182245-
/O.CON.KGSP.SV.W.0264.000000T0000Z-140818T2245Z/
CATAWBA NC-IREDELL NC-ROWAN NC-
609 PM EDT MON AUG 18 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR ROWAN...
SOUTHERN IREDELL AND SOUTHEASTERN CATAWBA COUNTIES UNTIL 645 PM
EDT...
AT 607 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM SPENCER TO MOORESVILLE...MOVING
SOUTHEAST AT 25 MPH.
SEVERE THUNDERSTORMS WILL IMPACT LOCATIONS NEAR...
SALISBURY.
HIGH ROCK LAKE...GRANITE QUARRY AND CHINA GROVE.
LANDIS.
ROCKWELL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THESE STORMS ARE CAPABLE OF BLOWING DOWN SCATTERED TREES AND POWER
LINES. SEEK SHELTER INSIDE AN INTERIOR ROOM.
THESE SEVERE THUNDERSTORMS ARE ALSO PRODUCING FREQUENT AND INTENSE
LIGHTNING. TURN OFF ELECTRICAL APPLIANCES. DO NOT USE CORDED
TELEPHONES. DO NOT TAKE A BATH OR SHOWER.
&&
LAT...LON 3556 8104 3572 8106 3580 8069 3581 8056
3578 8053 3578 8048 3574 8045 3572 8037
3559 8022 3551 8019
TIME...MOT...LOC 2209Z 314DEG 20KT 3570 8042 3559 8081
$$
NED273
WWUS52 KGSP 182226
SVSGSP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
626 PM EDT MON AUG 18 2014
NCC035-182236-
/O.CAN.KGSP.SV.W.0264.000000T0000Z-140818T2245Z/
CATAWBA NC-
626 PM EDT MON AUG 18 2014
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CATAWBA COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THIS AREA.
LAT...LON 3555 8087 3577 8083 3580 8069 3581 8056
3578 8053 3578 8048 3574 8045 3572 8037
3559 8022 3551 8019
TIME...MOT...LOC 2226Z 284DEG 18KT 3565 8061
$$
NCC097-159-182245-
/O.CON.KGSP.SV.W.0264.000000T0000Z-140818T2245Z/
IREDELL NC-ROWAN NC-
626 PM EDT MON AUG 18 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR ROWAN AND
SOUTH CENTRAL IREDELL COUNTIES UNTIL 645 PM EDT...
AT 624 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES
NORTH OF CHINA GROVE...OR 8 MILES WEST OF SALISBURY...MOVING EAST AT
20 MPH.
THE SEVERE THUNDERSTORM WILL IMPACT LOCATIONS NEAR...
CHINA GROVE.
SALISBURY.
GRANITE QUARRY AND SPENCER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM IS CAPABLE OF BLOWING DOWN SCATTERED TREES AND POWER
LINES. SEEK SHELTER INSIDE AN INTERIOR ROOM.
THIS SEVERE THUNDERSTORM IS ALSO PRODUCING FREQUENT AND INTENSE
LIGHTNING. TURN OFF ELECTRICAL APPLIANCES. DO NOT USE CORDED
TELEPHONES. DO NOT TAKE A BATH OR SHOWER.
THIS SEVERE THUNDERSTORM IS ALSO PRODUCING EXTREMELY HEAVY RAINFALL.
FLOODING OF DRAINAGE DITCHES AND LOW LYING AREAS MAY OCCUR. DO NOT
DRIVE THROUGH AREAS WHERE WATER IS FLOWING OVER THE ROAD.
&&
LAT...LON 3555 8087 3577 8083 3580 8069 3581 8056
3578 8053 3578 8048 3574 8045 3572 8037
3559 8022 3551 8019
TIME...MOT...LOC 2226Z 284DEG 18KT 3565 8061
$$
NED319
WWUS52 KGSP 182242
SVSGSP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
642 PM EDT MON AUG 18 2014
NCC097-159-182252-
/O.EXP.KGSP.SV.W.0264.000000T0000Z-140818T2245Z/
IREDELL NC-ROWAN NC-
642 PM EDT MON AUG 18 2014
...THE SEVERE THUNDERSTORM WARNING FOR ROWAN AND SOUTH CENTRAL
IREDELL COUNTIES WILL EXPIRE AT 645 PM EDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LEVELS. HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS THUNDERSTORM.
LAT...LON 3555 8087 3577 8083 3580 8069 3581 8056
3578 8053 3578 8048 3574 8045 3572 8037
3559 8022 3551 8019
TIME...MOT...LOC 2242Z 284DEG 18KT 3563 8051
$$
NEDWhat forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 18, 2:46 PM EDT, 3 hours 2 minutes earlier.
Area forecast discussion, Aug 18, 2:46 PM EDT, 3 hours 2 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
246 PM EDT MON AUG 18 2014
.SYNOPSIS...
A WEAK LOW PRESSURE SYSTEM WILL LINGER OVER THE AREA TONIGHT AND
THEN SLOWLY MOVE OFF THE COAST ON TUESDAY. A BROAD UPPER LEVEL RIDGE
OF HIGH PRESSURE WILL THEN BUILD ACROSS THE MISSISSIPPI RIVER VALLEY
OVER THE NEXT FEW DAYS AND LINGER FOR THE REST OF THE WORK
WEEK...RESULTING IN ABOVE NORMAL TEMPERATURES AND DRIER WEATHER.
&&
.NEAR TERM /THROUGH TUESDAY/...
A RATHER CLOUDY AND STABLE AIR MASS LINGERS OVER THIS NORTHWEST
THIRD OR SO OF THE FORECAST AREA...HAVING BEEN OVERWORKED BY MORNING
CONVECTION AND/OR ASSOCIATED OUTFLOW. THIS OUTFLOW BOUNDARY HAS
SURGED INTO THE SC LOWER PIEDMONT/MIDLANDS...AND SCATTERED
CONVECTIVE ACTIVITY IS NOW DEVELOPING ALONG THIS FEATURE...BUT
PRIMARILY SOUTH OF THE FORECAST AREA. MEANWHILE...SHOWER ACTIVITY
ASSOCIATED WITH CENTRAL APPALACHIAN SHORT WAVE TROUGH IS PASSING TO
OUR NORTH. THE UPSHOT IS...OTHER THAN A COUPLE OF HIGH TERRAIN
SHOWERS...THERE/S NO CONVECTION ACROSS THE FORECAST AREA AS OF
1830Z. CONSIDERING CURRENT OBSERVATIONAL/RADAR TRENDS...THIS MAY NOT
CHANGE MUCH OVER THE NEXT COUPLE OF HOURS. MEANWHILE...WE SHOULD SEE
AN INCREASE IN WEAK SYNOPTIC-SCALE SUBSIDENCE AS THE SHORT WAVE
SHIFTS TOWARD CENTRAL VA/NC. NEVERTHELESS...CAPE IS EXCEEDING 2000
J/KG (PER THE LATEST SPC MESOANALYSIS) ACROSS MUCH OF THE
PIEDMONT...SO STILL EXPECTING SCT CONVECTION TO DEVELOP THIS
AFTERNOON ACROSS MUCH OF THIS AREA. ADDITIONAL CONVECTION CONTINUES
TO DEVELOP AHEAD OF ANOTHER SHORT WAVE TROUGH WITHIN A VERY UNSTABLE
AIR MASS ACROSS ALA/MISS...AND THIS WILL LIKELY APPROACH OUR WESTERN
ZONES BY THIS EVENING. OVERALL...A GRADUAL UPTICK TO 30-50 POPS
(WITH THE HIGHEST IN THE WEST) WILL OCCUR THROUGH THE AFTERNOON INTO
EARLY EVENING.
A LULL IS EXPECTED IN ANY CONVECTIVE ACTIVITY LATER THIS EVENING.
HOWEVER...CHANCES WILL INCREASE AGAIN DURING THE EARLY MORNING AS
THE SHORT WAVE APPROACHES FROM GA/AL. DESPITE THE RATHER POTENT
APPEARANCE OF THIS WAVE...THE MODELS ARE NOT EXACTLY ROBUST WITH
THEIR QPF RESPONSE IN OUR AREA. CERTAINLY THE TIMING REFLECTS AN
ABSENCE OF ROBUST INSTABILITY WITH WHICH TO INTERACT. MEANWHILE...
THERE APPEARS TO BE A CONSENSUS THAT THE BETTER LOW LEVEL SHEAR WILL
PASS SOUTH OF OUR AREA. THUS THE POTENTIAL FOR ORGANIZED CONVECTION
APPEARS TO BE HIGHER SOUTH OF OUR AREA. NEVERTHELESS...POPS WILL
INCREASE TO 30-50 PERCENT ACROSS THE WESTERN HALF OF THE AREA
BETWEEN 06Z AND 12Z.
BY TUE AFTERNOON...THE WAVE IS EXPECTED TO BE PUSHING EAST OF THE
AREA...LIKELY PLACING THE AREA WITHIN WEAK SYNOPTIC SCALE SUBSIDENCE
THAT COULD LIMIT COVERAGE OF CONVECTION DURING THE AFTERNOON.
OVERALL...THERE IS QUITE A BIT OF UNCERTAINTY REGARDING THE
EVOLUTION OF CONVECTION TUE MORNING...SO WE WILL ESSENTIALLY FEATURE
TOKEN 30/40 POPS ACROSS THE AREA DURING THE AFTERNOON.
&&
.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY/...
AS OF 230 PM MONDAY...AN ENDLESS PARADE OF S/W'S WILL BE IMPACTING
OUR FORECAST AREA DURING THIS CYCLE. THE FIRST WILL BE EXITING OUR
REGION TUESDAY. I LEFT A SLIGHT CHANCE IN THE FAR EASTERN FA OF NC
DURING THE EARLY EVENING... AND ALSO ACROSS THE WEST FACING SLOPES
OF THE NC MOUNTAINS (ALSO IN THE EVENING )...WHERE WEAK UPSLOPE
PERSISTS.
MODELS DIFFER ON TIMING AND DEGREE OF NWLY FLOW DEVELOPING OVER THE
CAROLINAS AND NE GA WEDNESDAY AND THURSDAY...AS AN UPPER LEVEL RIDGE
BUILDS FROM THE WESTERN GULF OF MEXICO INTO THE NRN PLAINS. THIS
EVOLUTION...COMBINED WITH A PERSISTENT CUTOFF UPPER LOW MEANDERING
OVER THE GREAT LAKES...WILL SET UP A NWLY FLOW PATTERN ACROSS THE
ERN CONUS...AND ALMOST A RING OF FIRE (ROF) LOOK. ALTHOUGH OUR SHORT
TERM SUITE OF GUIDE VARY IN DETAIL...THE OVERALL PHILOSOPHY / OR BIG
PICTURE / SEEM TO COINCIDE. AS A RESULT THE STAGE WILL BE SET FOR
CLUSTERS OF SHOWERS/TSTMS TO RIDE THE NWLY FLOW DOWN INTO/TOWARD OUR
REGION. IT APPEARS THE FIRST SUCH WOULD BE ASSOCIATED WITH THE
ENERGY IN THE WESTERN OHIO VALLEY TUESDAY...REACHING OUR NC
MOUNTAINS IN THE WEE HOURS WEDNESDAY. CORFIDI VECTORS SUGGEST THAT
ACTION WOULD SPREAD E-SE...POTENTIALLY REACHING PARTS OF NE GA AND
UPSTATE OF SC. STEEP LOW LEVEL LAPSE RATES AND FAT CAPE (ESPECIALLY
WHERE LACK OF DEBRIS CLOUDS MOVE) COULD PROVE FOR AN INTERESTING
WEATHER DAY.
YET ANOTHER S/W WILL FOLLOW ON THURSDAY. FLOW ALOFT SUBTLY SHIFTS
MORE NWLY...THEREFORE I HAVE BROUGHT POPS A BIT DEEPER (SOUTHWARD)
IN OUR CWA IN THE AFTERNOON. ALTHOUGH POPS WITH EACH OF THE
AFOREMENTIONED EPISODES REMAIN ON THE LOW SIDE...THE CONDITIONAL
PROBABILITIES REMAIN ELEVATED. WE ARE NEAR GUIDE POPS OVERALL...OR
SLIGHTLY HIGHER ON OUR SOUTHERN FORECAST FRINGES. ONCE WE GET A
BETTER HANDLE IF/WHERE THESE CLUSTERS WILL FOCUS...POPS CAN BE
ADJUSTED ACCORDINGLY.
ON THE TEMPERATURE END OF THE SPECTRUM...POTENTIAL DEBRIS CLOUDS AND
SHOWERS AND THUNDERSTORMS WOULD SUGGEST LOWERING GUIDE. HOWEVER LOW
LEVEL THERMAL PROFILE IS SOLIDLY ON THE RISE AND WOULD SUGGEST
TEMPERATURE VALUES REACHING NEAR MAXES...WITH DIFFERENTIAL HEATING
EVEN OF WIDESPREAD CONVECTION DEVELOP.
&&
.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
AS OF 210 PM EDT MONDAY...THE MEDIUM RANGE PICKS UP AT 00Z ON FRIDAY
WITH THE UPPER RIDGE AMPLIFYING OVER THE MISS RIVER VALLEY WHILE
ANOTHER BROAD UPPER TROF DIGS DOWN JUST OFF THE ATLANTIC SEABOARD.
FOR THE REMAINDER OF THE PERIOD...THE RIDGE AXIS REMAINS LARGELY IN
PLACE TO OUR WEST WHILE THE UPPER TROF BECOMES NEARLY STATIONARY AND
MORPHS INTO A CLOSED H5 LOW OVER THE WEEKEND. THE LATEST LONG RANGE
MODEL GUIDANCE SUGGESTS THAT WE WILL PROBABLY SEE SOME FLATTENING OF
THE UPPER RIDGE BY THE END OF THE PERIOD...BUT IT WONT BE TOO
SIGNIFICANT.
AT THE SFC...OUR AREA IS EXPECTED TO REMAIN UNDER A WARM AND MOIST
AIR MASS DURING THE FIRST PART OF THE PERIOD WITH WEAK HIGH PRESSURE
IN PLACE AND A SERIES OF WEAK MESO LOWS THAT TRY TO SPIN UP TO OUR
NORTH AND EAST. AS WE GO INTO THE WEEKEND...THE LONG RANGE MODELS
ARE LEANING TOWARDS A MORE ROBUST WEDGE DEVELOPING ON SAT AND
ESPECIALLY ON SUN. THIS PATTERN DEVELOPS FROM THE COMBINATION OF A
STRONG HIGH CENTERED OVER NOVA SCOTIA AND A LOW SPINNING UP AS IT
MOVES OFF THE NC COAST. THIS PROVIDES FOR STRONGER NELY LOW LVL FLOW
OVER THE FCST REGION AS THE HIGH IS SLOW TO PROGRESS EASTWARD AND
THE LOW REMAINS OFF THE NORTHEAST COAST THRU NEW DAY 7. THE WEDGE PATTERN
APPEARS TO BREAK DOWN BY THE END OF THE PERIOD EARLY NEXT
WEEK...HOWEVER MANY TIMES THESE FEATURES LINGER LONGER THAN THE
MODELS DEPICT. AS FOR THE SENSIBLE WX...NO MAJOR CHANGES WERE MADE
TO THE POP FCST WITH CHANCE COVERAGE INCREASED ON BOTH SAT AND SUN
AND ONLY SLIGHT CHANCE FOR MON AS THE DEEPER MOISTURE SHIFTS
EASTWARD AND THE WEDGE WEAKENS. TEMPS START OUT ABOUT A CATEGORY
ABOVE NORMAL ON FRI AND STEADILY COOL THRU EARLY NEXT WEEK WITH
VALUES ENDING RIGHT AROUND CLIMO IF NOT JUST BELOW.
&&
.AVIATION /19Z MONDAY THROUGH SATURDAY/...
AT KCLT...THE AIR MASS HAS BECOME QUITE UNSTABLE ACROSS THE PIEDMONT
THIS AFTERNOON...WHILE AN OUTFLOW BOUNDARY IS BEGINNING TO FOCUS
DEEP CONVECTION ACROSS THE CAROLINA PIEDMONT. HOWEVER...IT/S
BEGINNING TO APPEAR THAT THE BEST CHANCES ARE BEGINNING TO SHIFT TO
THE EAST AND SOUTH OF THE TERMINAL. NEVERTHELESS...HAVE OPTED TO
CONTINUE A TEMPO FOR -SHRA THROUGH THE AFTERNOON. OTHERWISE...THERE
SHOULD BE A GENERAL LULL IN CONVECTIVE CHANCES IN THE EVENING...WITH
CHANCES RETURNING BY MID-MORNING TUE...AS AN UPPER AIR DISTURBANCE
APPROACHES FROM THE WEST. OTHERWISE...VFR CONDITIONS WILL CONTINUE
ALONG WITH W/SW WINDS.
ELSEWHERE...SCT CONVECTION IS STILL ANTICIPATED THIS AFTERNOON
ACROSS THE REGION...BUT COVERAGE IS EXPECTED TO BE SOMEWHAT LIMITED
OVER THE FIRST 6 HOURS OF THE PERIOD. THEREFORE...WILL GENERALLY
ADVERTISE VCSH AT MOST TERMINALS INTO THE EVENING. CHANCES MAY
INCREASE JUST AFTER 00Z...AS SCT CONVECTION APPROACHES FROM THE
WEST...BUT THIS IS STILL SOMEWHAT UNCERTAIN ATTM. CHANCES FOR
CONVECTION WILL INCREASE AGAIN TOWARD DAYBREAK...AS AN UPPER AIR
DISTURBANCE APPROACHES FROM THE WEST. FOR NOW...THIS WILL BE HANDLED
IN THE TAFS WITH A RETURN OF VCSH BY DAYBREAK OR SO. OTHERWISE...
AREAS OF BR ARE EXPECTED LATE TONIGHT...ESP IN THE MTN VALLEYS.
OUTLOOK...SCT AFTERNOON CONVECTION AND PATCHY EARLY MORNING FOG WILL
REMAIN IN THE FORECAST THROUGH THE WEEK. THERE WILL ALSO BE
INCREASING CHANCES FOR ORGANIZED CONVECTION APPROACHING THE AREA
FROM THE NW DURING THE LATE NIGHT/EARLY MORNING HOURS.
CONFIDENCE TABLE...
18-24Z 00-06Z 06-12Z 12-18Z
KCLT HIGH 100% HIGH 100% HIGH 100% HIGH 100%
KGSP HIGH 100% HIGH 100% HIGH 100% HIGH 100%
KAVL HIGH 100% HIGH 95% HIGH 95% HIGH 94%
KHKY HIGH 100% HIGH 100% HIGH 100% HIGH 100%
KGMU HIGH 100% HIGH 100% HIGH 100% HIGH 100%
KAND HIGH 100% HIGH 100% HIGH 95% HIGH 100%
THE PERCENTAGE REFLECTS THE NUMBER OF GUIDANCE MEMBERS AGREEING
WITH THE SCHEDULED TAF ISSUANCE FLIGHT RULE CATEGORY. COMPLETE
HOURLY EXPERIMENTAL AVIATION FORECAST CONSISTENCY TABLES AND ENSEMBLE
FORECASTS ARE AVAILABLE AT THE FOLLOWING LINK: (MUST BE LOWER CASE)
WWW.WEATHER.GOV/GSP/AVIATION_TABLES
&&
.GSP WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
NC...NONE.
SC...NONE.
&&
SYNOPSIS...JPT
NEAR TERM...JDL
SHORT TERM...TS
LONG TERM...JPT
AVIATION...JDLHazardous weather outlook, Aug 18, 3:59 PM EDT, 1 hour 49 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 359 PM EDT MON AUG 18 2014 GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065- 068>072-082-501>510-SCZ001>014-019-191000- 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- 359 PM EDT MON AUG 18 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. AN EPISODE OR TWO OF SHOWERS AND THUNDERSTORMS WILL PERSIST ACROSS THE REGION FOR THE REMAINDER OF THE AFTERNOON AND TONIGHT. BECAUSE BOTH MODEST INSTABILITY AND ELEVATED MOISTURE LEVELS REMAIN IN THE WEATHER PICTURE...A FEW SEVERE THUNDERSTORMS WILL BE POSSIBLE. THESE THUNDERSTORMS COULD PRODUCE DAMAGING WINDS AND LARGE HAIL. LOCALLY HEAVY DOWNPOURS MAY ALSO BE NOTED. REMEMBER LIGHTNING IS A THREAT WITH ALL THUNDERSTORMS...SO REMEMBER YOUR LIGHTNING SAFETY RULES. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. ..TUESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..THURSDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE HAIL...DAMAGING WINDS...OR FLASH FLOODING TO OUR OFFICE. STUREY
In the hours before
Special weather statement, Aug 18, 3:51 PM EDT, 1 hour 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
351 PM EDT MON AUG 18 2014
NCZ036-037-182015-
DAVIE-IREDELL-
351 PM EDT MON AUG 18 2014
...A STRONG THUNDERSTORM WILL AFFECT NORTHERN IREDELL AND NORTHERN
DAVIE COUNTIES THROUGH 415 PM EDT...
AT 349 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES SOUTHWEST OF BUCK SHOALS...OR 14 MILES
SOUTH OF RONDA...MOVING EAST AT 15 MPH.
THIS STORM WILL IMPACT LOCATIONS NEAR...
HARMONY...
PEA SIZE HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAINFALL ARE
EXPECTED WITH THIS STORM.
FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.
LAT...LON 3590 8037 3594 8099 3607 8098 3605 8049
3607 8046 3601 8041 3599 8041 3598 8039
NEDSpecial weather statement, Aug 18, 3:58 PM EDT, 1 hour 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
358 PM EDT MON AUG 18 2014
NCZ035-182030-
ALEXANDER-
358 PM EDT MON AUG 18 2014
...A STRONG THUNDERSTORM WILL AFFECT ALEXANDER COUNTY THROUGH 430 PM
EDT...
AT 355 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR TAYLORSVILLE...MOVING EAST AT 15 MPH.
THIS STORM WILL IMPACT LOCATIONS NEAR...
STONY POINT...
MOTHBALL SIZE HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAINFALL
ARE EXPECTED WITH THIS STORM.
FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.
LAT...LON 3598 8100 3586 8104 3585 8126 3603 8123
3604 8114 3603 8108 3605 8103
NEDSpecial weather statement, Aug 18, 4:16 PM EDT, 1 hour 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
416 PM EDT MON AUG 18 2014
NCZ035>037-182045-
ALEXANDER-DAVIE-IREDELL-
416 PM EDT MON AUG 18 2014
...STRONG THUNDERSTORMS WILL AFFECT NORTHERN IREDELL...DAVIE AND EAST
CENTRAL ALEXANDER COUNTIES THROUGH 445 PM EDT...
AT 414 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM FARMINGTON TO STONY
POINT...MOVING EAST AT 25 MPH.
THESE STORMS WILL IMPACT LOCATIONS NEAR...
FARMINGTON...
BERMUDA RUN...
MOCKSVILLE...
PEA SIZE HAIL...WIND GUSTS UP TO 40 MPH AND TORRENTIAL RAINFALL ARE
EXPECTED WITH THESE STORMS.
FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...TRY TO
GET INDOORS OR INTO A HARD TOPPED VEHICLE. OTHERWISE...STAY AWAY FROM
OPEN AREAS AND ISOLATED HIGH OBJECTS SUCH AS TREES. WHEN INDOORS...
STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING WIRED ELECTRONIC
DEVICES. TRY TO UNPLUG UNNECESSARY APPLIANCES BEFORE THE STORM
APPROACHES.
LAT...LON 3588 8037 3588 8041 3585 8038 3581 8047
3582 8060 3586 8067 3585 8071 3582 8072
3584 8114 3605 8092 3606 8079 3605 8049
3607 8046 3601 8041 3599 8041 3596 8037
NEDLocal storm report, Aug 18, 4:56 PM EDT, 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
456 PM EDT MON AUG 18 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0445 PM TSTM WND DMG 1 S FARMINGTON 35.99N 80.53W
08/18/2014 DAVIE NC FIRE DEPT/RESCUE
TREE DOWN IN ROADWAY ON FARMINGTON ROAD
&&
MOORELocal storm report, Aug 18, 5:33 PM EDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
533 PM EDT MON AUG 18 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0525 PM TSTM WND DMG 2 W COOLEEMEE 35.81N 80.60W
08/18/2014 ROWAN NC COUNTY OFFICIAL
A POWER LINE DOWN ON HART ROAD NEAR NEEDMORE ROAD.
&&
JOHSpecial weather statement, Aug 18, 5:33 PM EDT, 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
533 PM EDT MON AUG 18 2014
NCZ036-056-069-071-182200-
CATAWBA-IREDELL-LINCOLN-MECKLENBURG-
533 PM EDT MON AUG 18 2014
...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL MECKLENBURG...
EASTERN LINCOLN...SOUTH CENTRAL IREDELL AND SOUTHEASTERN CATAWBA
COUNTIES THROUGH 600 PM EDT...
AT 530 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR DENVER...OR 9 MILES EAST OF LINCOLNTON...
MOVING EAST AT 20 MPH.
THIS STORM WILL IMPACT LOCATIONS NEAR...
DENVER...
LOWESVILLE...
LAKE NORMAN...
MCGUIRE STATION...
WIND GUSTS UP TO 40 MPH...AND TORRENTIAL RAINFALL ARE EXPECTED WITH
THIS STORM.
LAKE NORMAN IS IN THE PATH OF THIS STORM. CLOUD TO GROUND LIGHTNING
AND GUSTY WINDS WILL CREATE DANGEROUS BOATING CONDITIONS. MOVE TO
SHORE IMMEDIATELY.
LAT...LON 3542 8080 3541 8096 3547 8119 3561 8117
3557 8076
NEDThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 3:18 PM EDT | Special Weather Statement | GSP | Alexander | 27 min |
| Aug 18, 3:51 PM EDT | Special Weather Statement | GSP | Davie | 24 min |
| Aug 18, 3:58 PM EDT | Special Weather Statement | GSP | Alexander | 32 min |
| Aug 18, 4:16 PM EDT | Special Weather Statement | GSP | Davie | 29 min |
| Aug 18, 4:38 PM EDT | Severe Thunderstorm Warning | GSP | Davie, Iredell, Rowan | 67 min |
| Aug 18, 5:33 PM EDT | Special Weather Statement | GSP | Lincoln | 27 min |
| Aug 18, 6:44 PM EDT | Special Weather Statement | GSP | Rowan | 31 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2014Every severe thunderstorm warning in 2014
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.