Alert archive / North Carolina / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 188, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Jul 20, 2015, 10:05 PM EDT for 4 counties in North Carolina. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 20, 2015, 10:05 PM EDT (02:05 UTC)
- Expired
- Jul 20, 2015, 10:45 PM EDT
- In force
- 40 min
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
Counties Anson County, NC, Montgomery County, NC, Richmond County, NC, Stanly County, NC
The radar
The Raleigh/Durham radar (KRAX), 148 km from the middle of the area, began a volume at 02:08 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
Charleston AFB, SC (KCHS), launched 00:00Z, 2.1 hours before the alert went out and 251 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
- 2737 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 1080 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What 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 Raleigh, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 20, 8:27 PM EDT, 1 hour 38 minutes earlier.
Area forecast discussion, Jul 20, 8:27 PM EDT, 1 hour 38 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RALEIGH NC 827 PM EDT THU JUL 20 2015 .SYNOPSIS...A COLD FRONT WILL TRACK SOUTHEAST ACROSS THE CAROLINAS TONIGHT AND SETTLE SOUTH OF THE AREA ON FRIDAY. MEANWHILE...A WEAK LOW PRESSURE SYSTEM OFF THE SOUTHEAST COAST WILL TRACK NORTH NORTHEAST OFFSHORE THE CAROLINA COAST. && .NEAR TERM /THROUGH TONIGHT/... AS OF 400 PM THURSDAY... A PREFRONTAL BAND OF SHOWERS AND TSTMS HAVE DEVELOPED ACROSS OUR NORTHERN AND WESTERN ZONES IN ADVANCE OF THE COLD FRONT NOW EMERGING EAST OF THE MOUNTAINS. LATEST MESOANALYSIS SHOWS THAT THE STORMS ARE IN THE BEST ENVIRONMENT (INSTABILITY-WISE) RIGHT NOW WITH INSTABILITY TRENDING DOWN TOWARD THE COASTAL PLAIN. LATEST HRRR SHOWS THIS ACTIVITY GRADUALLY SHIFTING SOUTH AND EAST THE REST OF THIS AFTERNOON INTO THE EVENING...MOVING EAST OF I-95 AFTER 8PM. THE MAIN CONCERN WITH THESE CELLS WILL BE BRIEF HEAVY DOWNPOURS AND CG LIGHTNING...ALTHOUGH AN ISOLATED STRONGER WIND GUST CAN'T BE RULED OUT...ESP ALONG/EAST OF THE I-95 CORRIDOR WHERE DCAPE VALUES ARE HIGHEST. AS THE COLD FRONT PUSHES FARTHER EAST LATER THIS EVENING...WE COULD SEE A FEW SHOWERS REDEVELOP ACROSS OUR AREA... PARTICULARLY ACROSS OUR CENTRAL AND EASTERN ZONES...BEFORE ALL ACTIVITY MOVES EAST OF OUR AREA AND ENDS AFTER 06-07Z. LOWS TONIGHT IN THE UPPER 60S NW TO MID 70S SE. && .SHORT TERM /FRIDAY AND FRIDAY NIGHT/... AS OF 400 PM THURSDAY... NOT MUCH CHANGE FROM PREV FORECAST THINKING...THE COLD FRONT IS PROGGED TO STALL NEAR THE COAST WITH THE DEEPER MOISTURE FAR ENOUGH TO OUR EAST TO PRECLUDE THE RISK FOR RAIN ACROSS OUR AREA. HOWEVER...SINCE EVEN A SLIGHT NORTHWARD ERROR IN THE PLACEMENT OF THE FRONT/MOISTURE COULD MEAN A CHANCE FOR A FEW SHOWERS ACROSS OUR FAR SE ZONES...SO HAVE OPTED TO KEEP SLIGHT CHANCE POP ACROSS SAMPSON COUNTY FRIDAY AND FRIDAY NIGHT. HOWEVER...THE REST OF CENTRAL NC EXPECTED TO REMAIN DRY DURING THIS TIME. ONLY A SMALL DROP IN THICKNESSES IS FORECAST...SO HIGHS WILL STILL BE AROUND NORMAL...89-94. LOWS FRIDAY NIGHT IN THE MID 60S TO AROUND 70. && .LONG TERM /SATURDAY THROUGH THURSDAY/... AS OF 1200 PM THURSDAY... AN UPPER LEVEL RIDGE IS EXPECTED TO PERSIST OVER THE WESTERN CONUS THROUGH THE EXTENDED PERIOD...WITH THE RIDGE UNDERGOING FURTHER AMPLIFYING OVER THE ROCKIES BY EARLY NEXT WEEK. DOWNSTREAM IN THE CAROLINAS AND MID-ATLANTIC...PERSISTING TROUGHING /CYCLONIC FLOW/ ALOFT WILL PREVAIL. THOUGH NUMEROUS SMALL AMPLITUDE DISTURBANCES /SHORTWAVES/ WILL NO DOUBT BE PRESENT IN THIS AMPLIFIED PATTERN... THE BULK OF NORTH CAROLINA IS EXPECTED TO REMAIN ALONG/WEST THE BASE OF THE UPPER LEVEL TROUGH AXIS...WHERE MOISTURE WILL BE LESS FAVORABLE FOR (OR PERHAPS INSUFFICIENT TO SUPPORT) DIURNAL CONVECTION...EXCEPT IN EASTERN/COASTAL PORTIONS OF THE CAROLINAS. WILL MAKE LITTLE CHANGE TO THE PREVIOUS FORECAST INDICATING HIGHS IN THE LOWER TO MID 90S...LOWS IN THE LOWER 70S...AND DIURNAL PRECIP CHANCES CONFINED PRIMARILY TO THE SE COASTAL PLAIN. IT SHOULD BE NOTED THAT A WESTWARD SHIFT IN THE UPPER LEVEL PATTERN (RIDGE/TROUGH AXES) OVER THE LOWER 48 WOULD RESULT IN INCREASED PRECIP CHANCES ACROSS PORTIONS OF CENTRAL NC...PARTICULARLY ALONG/EAST OF HWY 1... THOUGH NO SIGNIFICANT CHANGE IS APPARENT AT THIS TIME. -VINCENT && .AVIATION /00Z FRIDAY THROUGH TUESDAY/... AS OF 827 PM THURSDAY... BAND OF PRE-FRONTAL THUNDERSTORMS WILL MOVE EAST AND OUT OF THE AREA BETWEEN 02 TO 03Z. KFAY AND KRWI COULD SEE A BRIEF PERIOD OF SUB-VFR CONDITIONS IN ASSOCIATION WITH THESE STORMS. OTHERWISE...THE COLD FRONT WILL TRACK SLOWLY THROUGH THE AREA OVERNIGHT. AN ISOLATED SHOWER OR STORM WILL BE POSSIBLE UNTIL THE FRONT MOVES THROUGH THE AREA. WINDS WILL SHIFT TO NORTHWESTERLY BEHIND THE FRONT AS IT SETTLES SOUTH AND EAST OF THE AREA OVERNIGHT. VFR CONDITIONS ARE EXPECTED BEHIND THE FRONT LATER TONIGHT AND THROUGH THE REST OF THE 24 HOUR TAF PERIOD. LOOKING AHEAD: THE COLD FRONT WILL STALL NEAR THE COAST ON FRIDAY AND EVENTUALLY WASH OUT OVER THE WEEKEND. DRY AND PREDOMINATELY VFR CONDITIONS ARE EXPECTED THROUGH EARLY NEXT WEEK. THE EXCEPTION MAY BE AT KFAY AND KRWI...WHERE ISOLATED DIURNAL CONDITION IS POSSIBLE. && .RAH WATCHES/WARNINGS/ADVISORIES... NONE. && SYNOPSIS...RAH NEAR TERM...RAH SHORT TERM...RAH LONG TERM...VINCENT AVIATION...CBL
Hazardous weather outlook, Jul 20, 3:38 PM EDT, 6 hours 27 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE RALEIGH NC 338 PM EDT MON JUL 20 2015 NCZ007-021>023-038-039-211945- PERSON-FORSYTH-GUILFORD-ALAMANCE-DAVIDSON-RANDOLPH- 338 PM EDT MON JUL 20 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. A FEW SEVERE STORMS WILL BE POSSIBLE LATE TUESDAY INTO TUESDAY NIGHT...IN ASSOCIATION WITH THE PASSAGE OF A COLD FRONT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NCZ008-009-024-025-040-073>076-083-084-211945- GRANVILLE-VANCE-ORANGE-DURHAM-CHATHAM-STANLY-MONTGOMERY-MOORE-LEE- ANSON-RICHMOND- 338 PM EDT MON JUL 20 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. MAXIMUM HEAT INDEX VALUES WILL REACH BETWEEN 100 AND 105 DEGREES THIS AFTERNOON. THIS EXTENDED PERIOD OF HOT WEATHER WILL INCREASE THE RISK FOR HEAT RELATED ILLNESSES. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. MAXIMUM HEAT INDEX VALUES WILL REACH BETWEEN 100 AND 105 DEGREES AGAIN TUESDAY AFTERNOON. THIS EXTENDED PERIOD OF HOT WEATHER WILL INCREASE THE RISK FOR HEAT RELATED ILLNESSES. IN ADDITION...A FEW SEVERE STORMS WILL BE POSSIBLE LATE TUESDAY INTO TUESDAY NIGHT...IN ASSOCIATION WITH THE PASSAGE OF A COLD FRONT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NCZ011-027-028-042-043-077-078-085-086-088-089-211945- HALIFAX-NASH-EDGECOMBE-JOHNSTON-WILSON-HARNETT-WAYNE-SCOTLAND-HOKE- CUMBERLAND-SAMPSON- 338 PM EDT MON JUL 20 2015 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 1 PM TO 7 PM EDT TUESDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. HEAT ADVISORY. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. HEAT ADVISORY. IN ADDITION...A FEW SEVERE STORMS WILL BE POSSIBLE LATE TUESDAY INTO TUESDAY NIGHT...IN ASSOCIATION WITH THE PASSAGE OF A COLD FRONT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NCZ010-026-041-211945- WARREN-FRANKLIN-WAKE- 338 PM EDT MON JUL 20 2015 ...HEAT ADVISORY IN EFFECT FROM 1 PM TO 7 PM EDT TUESDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA. .DAY ONE...THIS AFTERNOON AND TONIGHT. MAXIMUM HEAT INDEX VALUES WILL REACH BETWEEN 100 AND 105 DEGREES THIS AFTERNOON. THIS EXTENDED PERIOD OF HOT WEATHER WILL INCREASE THE RISK FOR HEAT RELATED ILLNESSES. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. HEAT ADVISORY. IN ADDITION...A FEW SEVERE STORMS WILL BE POSSIBLE LATE TUESDAY INTO TUESDAY NIGHT...IN ASSOCIATION WITH THE PASSAGE OF A COLD FRONT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Special weather statement, Jul 20, 8:44 PM EDT, 1 hour 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
844 PM EDT MON JUL 20 2015
NCZ038-039-210145-
RANDOLPH NC-DAVIDSON NC-
844 PM EDT MON JUL 20 2015
...A STRONG THUNDERSTORM WILL AFFECT PORTIONS OF WESTERN RANDOLPH AND
SOUTHERN DAVIDSON COUNTIES UNTIL 945 PM EDT...
AT 844 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 7 MILES SOUTHEAST OF HIGH ROCK LAKE...OR 10 MILES
NORTHWEST OF BADIN LAKE...MOVING NORTHEAST AT 25 MPH.
WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM.
LOCATIONS IMPACTED INCLUDE...
HIGH POINT...ASHEBORO...THOMASVILLE...TRINITY...DENTON...
GORDONTOWN...MARTHA...NEWSOM...HIGH ROCK LAKE AND HIGH ROCK BOAT DOCK
MARINA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEEK SHELTER IN A NEARBY BUILDING OR VEHICLE. WIND GUSTS AS HIGH AS
50 MPH ARE CAPABLE OF KNOCKING DOWN SMALL OR WEAKENED TREES AND
BLOWING AROUND TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND OTHER
LIGHT OUTDOOR OBJECTS.
&&
LAT...LON 3592 8002 3592 8000 3576 7982 3553 7986
3551 8005 3551 8018 3552 8018 3553 8020
3554 8020 3555 8021 3558 8021 3563 8026
3564 8029 3567 8031 3568 8033
TIME...MOT...LOC 0044Z 238DEG 21KT 3559 8019Special weather statement, Jul 20, 9:08 PM EDT, 57 minutes before
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</html>Local storm report, Jul 20, 10:03 PM EDT, 2 minutes before
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</html>The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 8:44 PM EDT | Special Weather Statement | RAH | Davidson | 61 min |
| Jul 20, 9:08 PM EDT | Special Weather Statement | RAH | Stanly | 67 min |
| Jul 20, 9:16 PM EDT | Severe Thunderstorm Warning | RAH | Stanly | 44 min |
| Jul 20, 11:02 PM EDT | Special Weather Statement | RAH | Anson | 58 min |
| Jul 21, 3:18 PM EDT | Special Weather Statement | RAH | Franklin, Nash | 57 min |
| Jul 21, 4:12 PM EDT | Special Weather Statement | RAH | Sampson | 63 min |
| Jul 21, 4:26 PM EDT | Special Weather Statement | RAH | Edgecombe | 34 min |
| Jul 21, 4:42 PM EDT | Special Weather Statement | RAH | Forsyth, Guilford | 63 min |
| Jul 21, 5:18 PM EDT | Special Weather Statement | RAH | Montgomery | 42 min |
| Jul 21, 5:33 PM EDT | Special Weather Statement | RAH | Randolph | 42 min |
| Jul 21, 5:46 PM EDT | Special Weather Statement | RAH | Durham | 44 min |
| Jul 21, 6:14 PM EDT | Special Weather Statement | RAH | Alamance, Durham, Orange | 46 min |
| Jul 21, 6:16 PM EDT | Special Weather Statement | RAH | Anson | 44 min |
| Jul 21, 6:37 PM EDT | Special Weather Statement | RAH | Wake | 53 min |
| Jul 21, 6:41 PM EDT | Special Weather Statement | RAH | Edgecombe, Nash | 49 min |
| Jul 21, 6:44 PM EDT | Special Weather Statement | RAH | Harnett | 46 min |
| Jul 21, 6:48 PM EDT | Severe Thunderstorm Warning | RAH | Chatham, Durham, Orange, Wake | 57 min |
| Jul 21, 6:52 PM EDT | Special Weather Statement | RAH | Sampson | 68 min |
| Jul 21, 6:59 PM EDT | Special Weather Statement | RAH | Richmond, Scotland | 61 min |
| Jul 21, 7:18 PM EDT | Special Weather Statement | RAH | Edgecombe | 27 min |
| Jul 21, 7:32 PM EDT | Areal Flood Advisory | RAH | Wake | 118 min |
| Jul 21, 7:34 PM EDT | Severe Thunderstorm Warning | RAH | Johnston, Nash, Wake, Wayne, Wilson | 56 min |
| Jul 21, 7:59 PM EDT | Special Weather Statement | RAH | Scotland | 16 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2015Every severe thunderstorm warning 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.