Alert archive / South Carolina / Special Weather Statements in 2015
Special Weather Statement, NWS Wilmington, NC
NWS Wilmington, NC issued this special weather statement at Apr 9, 2015, 4:11 PM EDT for Williamsburg County, South Carolina. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 9, 2015, 4:11 PM EDT (20:11 UTC)
- Expired
- Apr 9, 2015, 5:15 PM EDT
- In force
- 64 min
- Issued by
- NWS Wilmington, NC
County Williamsburg County, SC
The radar
The Wilmington radar (KLTX), 103 km from the middle of the area, began a volume at 20:13 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
Newport, NC (KMHX), launched 12:00Z, 8.2 hours before the alert went out and 268 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
- 154 J/kg
- Mixed-layer CIN
- -153 J/kg
- Mixed-layer LCL
- 1201 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Wilmington, NC wrote its last area forecast discussion before this special weather statement went out at Apr 9, 2:36 PM EDT, 1 hour 35 minutes earlier.
Area forecast discussion, Apr 9, 2:36 PM EDT, 1 hour 35 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON NC 236 PM EDT THU APR 9 2015 .SYNOPSIS... WARM AND HUMID WEATHER WILL PRECEDE A STRONG COLD FRONT...WHICH WILL CROSS THE AREA LATE FRIDAY NIGHT. A FEW THUNDERSTORMS COULD BE STRONG FRIDAY NIGHT...WITH SHOWERS LINGERING INTO SATURDAY MORNING. DRY AND SEASONABLE CONDITIONS WILL MOVE INTO THE AREA THROUGH THE REMAINDER OF THE WEEKEND. A WARMING TREND WILL UNFOLD EARLY NEXT WEEK...WITH A CHANCE OF SHOWERS TUESDAY INTO WEDNESDAY AS GULF MOISTURE MOVES INTO THE REGION. && .NEAR TERM /THROUGH TONIGHT/... AS OF 236 PM THURSDAY...INITIAL ROUND OF SHOWERS AND THUNDERSTORMS HAVE DISSIPATED AS AN AREA OF SUBSIDENCE IN THE WAKE OF A PASSING IMPULSE ALOFT TEMPORARILY TAKES HOLD. DIURNAL CUMULUS HAS DEVELOPED UPSTREAM AND WITH GOOD INSOLATION ACROSS THE PEE DEE AND LUMBERTON AREAS THE AREA OF SUBSIDENCE WILL WEAKEN. OUTFLOW FROM CONVECTION ACROSS COASTAL SOUTHEAST NC HAS DROPPED INTO HORRY COUNTY... AS NOTED BY EARLIER VISIBLE SATELLITE IMAGERY. THE BOUNDARY COUPLED WITH THE SEA BREEZE SHOULD PROVIDE A SPARK FOR SCATTERED SHOWERS AND THUNDERSTORMS ACROSS NORTHEAST SC THIS AFTERNOON. WIDELY SCATTERED STORMS ARE ALSO POSSIBLE IN THE BETTER INSTABILITY EXPECTED ACROSS THE PEE DEE REGION. THE EARLIER RAINFALL WILL HAVE AN IMPACT ON TODAY/S MAX TEMPERATURES IN THE WILMINGTON AND VICINITY LOCATIONS. AS A RESULT...LOWERED FORECAST MAX TEMPS THERE...WHILE RETAINED HIGHS IN THE 80S FOR LBT...FLO...AND INLAND COASTAL SC LOCATIONS. WARM SOUTHWEST FLOW TONIGHT WILL KEEP MIN TEMPERATURES ABOVE NORMAL. && .SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/... AS OF 236 PM THURSDAY...CHIEF HEADLINES ARE A CHANGE OF AIR-MASS INTO SATURDAY FROM WARM TO MUGGY TO DRY AND MILD...AND A SHOT AT STRONG STORMS LATE FRIDAY AS A COLD FRONT MOVES THROUGH. SEVERE THREAT IS NOT SUPPORTED IN DIURNAL TIMING AS IT ARRIVES BEYOND PEAK SURFACE HEATING FRIDAY NIGHT...BUT COOLING ALOFT MAY SUPPORT SOME HAIL. TIME-HEIGHT ANALYSIS IS NOT OVERLY IMPRESSIVE WITH WINDS NO GREATER THAN 35 KNOTS IN THE LOWEST 8KFT...AND H8 25-30 KT BARBS. PEAK PRECIPITABLE WATER VALUES FRIDAY NIGHT AROUND 1.75 INCHES AND SOME JET SUPPORT ALOFT SHOULD OFFER A GOOD SHOT AT RAIN FRIDAY NIGHT INTO SATURDAY MORNING FROM WEST TO EAST...AND CLEARING THE COAST AROUND MIDDAY SATURDAY. UPPER 80 MAXIMUMS FRIDAY INLAND...LOW 80S COASTAL INTERIOR...AND UPPER 60S TO MIDDLE 70S BEACHES...WILL COOL TO 70S SATURDAY TO NEAR 80 WELL INLAND...UPPER 60S TO 70 BEACHES. && .LONG TERM /SUNDAY THROUGH THURSDAY/... AS OF 236 PM THURSDAY...EXTENDED PERIOD LOOKS RATHER QUIET AS A MODEST SOUTHWEST FLOW ALOFT PERSISTS THROUGH THE PERIOD. HIGH PRESSURE WILL SETTLE OVER THE AREA SUNDAY AND MONDAY AND WITH PRECIPITABLE WATER VALUES ARE BELOW ONE HALF INCH SUNDAY WITH A SLOW INCREASE MONDAY. HAVE KEPT THESE DAYS DRY FOR THE MOST PART. SIGNIFICANT MOISTURE INCREASE FOR TUESDAY AND WEDNESDAY AS PWS SURGE TO IN EXCESS OF 1.5 INCHES. HOWEVER SYNOPTIC CONDITIONS SHOW LITTLE IN THE WAY OF FORCING AND POPS WILL REMAIN IN THE SLIGHT CHANCE CATEGORY. SIMILAR CONDITIONS FOR WEDNESDAY. FOR THURSDAY...MEDIUM RANGE GUIDANCE IS COMING INTO BETTER AGREEMENT WITH A BACKDOOR FRONT MOVING ACROSS AS A BROAD AREA OF MID LEVEL CONFLUENCE DEVELOPS ACROSS THE MIDWEST AND GREAT LAKES. I MAINTAINED THE POPS FOR THURSDAY AS MOISTURE REMAINS AND THE BOUNDARY IN THE AREA. NO CHANGES TO TEMPERATURE FORECAST FROM THE PREVIOUS FORECAST AS READINGS WILL BE JUST A LITTLE ABOVE NORMAL. && .AVIATION /18Z THURSDAY THROUGH TUESDAY/... AS OF 18Z...EXPECT VFR THROUGH THE REST OF TODAY WITH ISOLATED TO SCATTERED SHRA/TSRA. LATE OVERNIGHT INTO THE EARLY MORNING HOURS ON THURSDAY...MVFR POSSIBLE DUE TO LOW CIGS AND PATCHY FOG...WITH CONDITIONS IMPROVING AFTER DAYBREAK. ALMOST ALL OF THE EARLIER CONVECTION HAS DISSIPATED WITH THE IMPULSE SHIFTING OFF THE COAST...AND WITH THE BACK-DOOR FRONT RETREATING TO THE NORTH. JUST UPSTREAM...DIURNAL CU FIELD IS DEVELOPING AND AS THE AREA OF SUBSIDENCE IN THE WAKE OF THE IMPULSE DEPARTS EXPECT ADDITIONAL -SHRA/TSRA TO DEVELOP DURING THE AFTERNOON. SOUTHERLY WINDS...WILL PREVAIL AOB 12 KTS WITH A FEW GUSTS UP TO NEAR 20 KTS POSSIBLE. INTO THE EVENING...PRECIPITATION WILL DISSIPATE WITH THE LOSS OF HEATING AND ANY GUSTS WILL SUBSIDE. POTENTIAL FOR MVFR/IFR DUE TO LOW CIGS AND PATCHY FOG WILL CONTINUE INTO THE EARLY MORNING HOURS...WITH CONDITIONS IMPROVING TO VFR AFTER DAYBREAK ON FRIDAY. EXTENDED OUTLOOK...CHANCE OF SHOWERS AND THUNDERSTORMS FRIDAY AND SATURDAY. THE BEST CHANCE FOR PRECIPITATION IS FRIDAY NIGHT INTO SATURDAY MORNING. OTHERWISE EXPECT VFR. && .MARINE... NEAR TERM /THROUGH TONIGHT/... AS OF 236 PM THURSDAY...CONVECTION HAS RESULTED IN A VARIABLE WIND FIELD ACROSS THE NC COASTAL WATERS EARLY THIS AFTERNOON. THE LARGER SCALE SYNOPTIC FLOW WILL ONCE AGAIN TAKE HOLD LATER THIS AFTERNOON WITH THE RETURN OF SOUTHERLY FLOW. SPEEDS WILL GENERALLY RANGE FROM 10 TO 15 KNOTS DURING THE OVERNIGHT. OUTSIDE ANY CONVECTION...SEAS ARE EXPECTED TO BE IN THE 2-4 FT RANGE THROUGH THE NEAR TERM. SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/... AS OF 236 PM THURSDAY...DESPITE A COLD FRONTAL PASSAGE VERY EARLY SATURDAY JUST PRIOR TO...OR AROUND DAYBREAK THAT MAY BRING A FEW STRONG THUNDERSTORMS...NO SMALL CRAFT ADVISORIES ARE PLANNED...AS WINDS AHEAD OF AND BEHIND THE FRONT REMAIN MOSTLY BELOW 20 KT. GUSTS TO 20 KT FRIDAY AFTERNOON SEEMS LIKELY WITH SEA BREEZE ASSISTANCE...BUT SUSTAINED WINDS ARE NOT OVERLY STRONG WITH THIS SYSTEM OUTSIDE OF TSTMS. A FEW MARINE WARNINGS ARE POSSIBLE LATE FRIDAY NIGHT INTO EARLY SATURDAY. SEAS OF 2-3 FEET WILL BUILD TO 3-4 FEET FRIDAY NIGHT...POSSIBLY 5 FT VERY OUTER PORTION. PATCHY SEA FOG POSSIBLE FRIDAY BUT WATERS HAVE WARMED AND CONFIDENCE IS LOW ON ITS FORMATION. LONG TERM /SUNDAY THROUGH TUESDAY/... AS OF 236 PM THURSDAY...SURFACE HIGH PRESSURE WILL MOVE FROM THE APPALACHIANS TO WELL OFFSHORE DURING THE PERIOD. WINDS WILL RESPOND BY VEERING FROM NORTHEAST SUNDAY TO SOUTHEAST BY MIDDAY MONDAY. THEY WILL MAINTAIN THIS DIRECTION THROUGH THE REMAINDER OF THE PERIOD. SPEEDS WILL BE ON THE HIGHER END OF A 10-15 KNOT RANGE SUNDAY THEN SETTLE INTO THE ENTIRE RANGE MONDAY AND TUESDAY. SIGNIFICANT SEAS WILL BE 2-4 FEET SUNDAY DROPPING TO 1-3 FEET LATER MONDAY AND TUESDAY. && .ILM WATCHES/WARNINGS/ADVISORIES... SC...NONE. NC...NONE. MARINE...NONE. && SYNOPSIS...MJC NEAR TERM...SRP SHORT TERM...MJC LONG TERM...SHK AVIATION...SGL/SRP
Hazardous weather outlook, Apr 9, 4:20 AM EDT, 11 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON NC 420 AM EDT THU APR 9 2015 NCZ087-096-099-105-107-109-100830- ROBESON-BLADEN-COLUMBUS-INLAND PENDER-INLAND NEW HANOVER- INLAND BRUNSWICK- 420 AM EDT THU APR 9 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. A FEW THUNDERSTORMS COULD HAVE THE CAPABILITY TO PRODUCE 25 TO 45 MPH WIND GUSTS AND POSSIBLY HAIL. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. STRONG TO SEVERE THUNDERSTORMS POSSIBLE FRIDAY AFTERNOON AND FRIDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. SCZ017-023-024-032-033-039-053-055-100830- MARLBORO-DARLINGTON-DILLON-FLORENCE-MARION-WILLIAMSBURG-INLAND HORRY- INLAND GEORGETOWN- 420 AM EDT THU APR 9 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDS ARE EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. STRONG TO SEVERE THUNDERSTORMS POSSIBLE FRIDAY AFTERNOON AND FRIDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NCZ106-108-110-SCZ054-056-100830- COASTAL PENDER-COASTAL NEW HANOVER-COASTAL BRUNSWICK-COASTAL HORRY- COASTAL GEORGETOWN- 420 AM EDT THU APR 9 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NORTH CAROLINA AND NORTHEAST SOUTH CAROLINA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDS ARE EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. STRONG TO SEVERE THUNDERSTORMS POSSIBLE FRIDAY AFTERNOON AND FRIDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. AMZ250-252-100830- SURF CITY TO CAPE FEAR NC OUT 20 NM- CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20 NM- 420 AM EDT THU APR 9 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT. SMALL CRAFT EXERCISE CAUTION CONDITIONS POSSIBLE LATE TONIGHT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. SMALL CRAFT EXERCISE CAUTION CONDITIONS POSSIBLE FRIDAY INTO SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. AMZ254-256-100830- LITTLE RIVER INLET TO MURRELLS INLET SC OUT 20 NM- MURRELLS INLET TO SOUTH SANTEE RIVER SC OUT 20 NM- 420 AM EDT THU APR 9 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT. NO HAZARDS ARE EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. SMALL CRAFT EXERCISE CAUTION CONDITIONS POSSIBLE FRIDAY INTO SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. DOUGH
In the hours before
Special weather statement, Apr 9, 10:12 AM EDT, 5 hours 59 minutes before
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</html>Special weather statement, Apr 9, 10:12 AM EDT, 5 hours 59 minutes before
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</html>Special weather statement, Apr 9, 4:11 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON NC 411 PM EDT THU APR 9 2015 SCZ032-033-039-053>056-092115- INLAND GEORGETOWN-INLAND HORRY-COASTAL HORRY-FLORENCE-MARION-COASTAL GEORGETOWN-WILLIAMSBURG- 411 PM EDT THU APR 9 2015 ... STRONG THUNDERSTORMS WILL AFFECT SOUTH CENTRAL MARION... SOUTHEASTERN FLORENCE...NORTHERN GEORGETOWN...EASTERN WILLIAMSBURG AND SOUTHWESTERN HORRY COUNTIES... AT 409 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS WAS NEAR MORRISVILLE...OR 14 MILES SOUTHEAST OF KINGSTREE...MOVING NORTHEAST AT 15 MPH. WINDS IN EXCESS OF 30 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... CONWAY...SOCASTEE...RED HILL...HORRY...ANDREWS...JOHNSONVILLE... HEMINGWAY...POSTON...KINGSBURG...WARSAW...DONGOLA...EARLE... BUCKSPORT...HENRY...BRITTONS NECK...BUCKSVILLE...RHEMS...PEE DEE CROSSROADS...OUTLAND AND INDIANTOWN. THIS INCLUDES SC HIGHWAY 22 BETWEEN MILE MARKERS 1 AND 5. PRECAUTIONARY/PREPAREDNESS ACTIONS... THUNDERSTORMS CAN POSE A VARIETY OF THREATS INCLUDING GUSTY WINDS... SMALL HAIL...CLOUD TO GROUND LIGHTNING...AND LOCALIZED FLOODING. IT IS RECOMMENDED THAT YOU REMAIN INDOORS UNTIL THE STORMS PASS. LAT...LON 3362 7982 3412 7914 3364 7899 3341 7961 TIME...MOT...LOC 2009Z 240DEG 48KT 3359 7959 SHK
The office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 6:02 AM EDT | Special Weather Statement | ILM | Bladen, Robeson | 43 min |
| Apr 9, 6:49 AM EDT | Special Weather Statement | ILM | Bladen | 56 min |
| Apr 9, 7:42 AM EDT | Special Weather Statement | ILM | Bladen | 63 min |
| Apr 9, 7:52 AM EDT | Special Weather Statement | ILM | Brunswick | 23 min |
| Apr 9, 8:26 AM EDT | Special Weather Statement | ILM | Brunswick | 64 min |
| Apr 9, 8:54 AM EDT | Special Weather Statement | ILM | Pender | 51 min |
| Apr 9, 9:04 AM EDT | Special Weather Statement | ILM | Brunswick | 56 min |
| Apr 9, 9:15 AM EDT | Special Weather Statement | ILM | New Hanover | 45 min |
| Apr 9, 10:12 AM EDT | Special Weather Statement | ILM | New Hanover | 48 min |
| Apr 9, 11:14 AM EDT | Areal Flood Advisory | ILM | Brunswick | 61 min |
| Apr 9, 6:16 PM EDT | Severe Thunderstorm Warning | ILM | Bladen, Robeson | 29 min |
| Apr 9, 7:29 PM EDT | Special Weather Statement | ILM | Bladen, Robeson | 61 min |
| Apr 9, 5:13 PM EDT | Areal Flood Advisory | ILM | Williamsburg | 3 hr |
Nearby
Special Weather Statements in South Carolina, 2015Every special weather statement in 2015
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.