Alert archive / North Carolina / Special Weather Statements in 2010
Special Weather Statement, NWS Blacksburg, VA
NWS Blacksburg, VA issued this special weather statement at Jun 25, 2010, 2:21 PM EDT for Wilkes County, North Carolina. It was in force for 39 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
- Jun 25, 2010, 2:21 PM EDT (18:21 UTC)
- Expired
- Jun 25, 2010, 3:00 PM EDT
- In force
- 39 min
- Issued by
- NWS Blacksburg, VA
County Wilkes County, NC
The radar
The Roanoke radar (KFCX), 116 km from the middle of the area, began a volume at 18:23 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 12:00Z, 6.4 hours before the alert went out and 380 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
- 885 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1103 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 57 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 Blacksburg, VA wrote its last area forecast discussion before this special weather statement went out at Jun 24, 6:54 PM EDT, 19 hours 27 minutes earlier.
Area forecast discussion, Jun 24, 6:54 PM EDT, 19 hours 27 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE BLACKSBURG VA 654 PM EDT THU JUN 24 2010 .SYNOPSIS... A WEAK COLD FRONT WILL MOVE THROUGH MOST OF THE AREA TONIGHT... BEFORE STALLING NEAR THE NORTH CAROLINA BORDER. THE FRONT WILL REMAIN NEARLY STATIONARY ACROSS NORTHWEST NORTH CAROLINA FRIDAY BEFORE DISSIPATING...PROVIDING A FOCUS FOR SCATTERED AFTERNOON AND EVENING THUNDERSTORMS. WEAK HIGH PRESSURE OVER THE WEEKEND WILL BRING WARM AND HUMID CONDITIONS...WITH ISOLATED TO SCATTERED AFTERNOON AND EVENING THUNDERSTORMS AHEAD OF A STRONGER COLD FRONT THAT WILL MOVE THROUGH THE REGION LATE MONDAY. && .NEAR TERM /THROUGH FRIDAY/... QUICK UPDATE TO DROP THE WATCH ACROSS THE NW COUNTIES THAT ARE NOW NW OF THE EARLIER LINE. LEFT POPS IN ACROSS THAT AREA HOWEVER AS STILL COULD SEE A FEW CELLS POP UP AHEAD OF THE FRONT TO THE NORTH. AS OF 215 PM...RADAR SHOWS A NEARLY SOLID LINE OF TSTMS APPCHNG THE NORTHWESTERN MTN SECTIONS OF THE CWA. THIS LINE SHOULD HOLD TOGETHER AT LEAST INTO OUR WESTERN SLOPES AREAS...SO I HAVE RAISED POPS SOME MORE IN THE WEST. STILL THINKING THAT THE LINE WILL CROSS THE CWA...SINCE EVEN MLCAPES ARE ABOVE 3000 J/KG ON THE DOWNSLOPE SIDE OF THE MTNS. THE LINE MAY SCATTER OUT...THEN RE- INTENSIFY IN THE PIEDMONT LEE TROUGH WHICH IS NEAR A LYH TO DAN LINE AT THIS TIME. WILL MAINTAIN THE CHC POPS OUTSIDE OF THE WESTERN SLOPES AREAS...THOUGH RAISE THEM SOME ALONG AND EAST OF THE LEE TROUGH IN THE PIEDMONT. STRONG WINDS REMAIN A HIGH THREAT WITH THESE STORMS...ESPECIALLY WESTERN SLOPES AREAS OF THE MTNS. STORMS SHOULD BE EXITING THE PIEDMONT AREAS BEFORE MIDNIGHT. HAVE KEPT OVERNIGHT LOWS WARM SINCE THERE IS NOT MUCH COOLER AIR BEHIND THIS FRONT. I ALSO INCREASED THE FOG COVERAGE IN THE MTN VALLEYS. FRIDAY...THE FRONT REMAINS STALLED ACROSS NRN N.C. NEAR THE VA STATE LINE. HAVE INCREASED POPS A BIT ACROSS THE SRN CWA...BUT STILL CHC AT THIS POINT...WITH NO SYNOPTIC SCALE FORCING EVIDENT. HIGH FRIDAY WILL BE A GOOD 5 DEGREES COOLER THAN TODAY...BUT THAT IS STILL VERY WARM...A LITTLE ABOVE NORMAL MOST LOCATIONS. && .SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY NIGHT/... COOL FRONT THAT IS EXPECTED TO MOVE SOUTHEAST THROUGH THE BLACKSBURG FORECAST AREA TONIGHT INTO EARLY FRIDAY IS EXPECTED TO WASH OUT JUST TO THE SOUTH OF THE BLACKSBURG FORECAST AREA LATER FRIDAY INTO FRIDAY NIGHT. PROXIMITY OF SURFACE FRONT WARRANTS CONTINUED INCLUSION OF LOW CHANCE POPS ACROSS THE SOUTHERN PERIPHERY OF THE BLACKSBURG FORECAST AREA ON FRIDAY EVENING BEFORE ANY LINGERING POST FRONTAL PRECIPITATION DISSIPATES WITH LOSS OF THERMODYNAMIC SUPPORT. WEAK SURFACE HIGH PRESSURE FORECAST TO BUILD EAST INTO THE AREA ON SATURDAY. ATMOSPHERE IN MOST LOCATIONS SHOULD BE CAPPED OFF SUFFICIENTLY TO SUPPORT A DRY FORECAST FOR SATURDAY INTO SATURDAY NIGHT IN MOST LOCATIONS. EXCEPTION WILL BE ACROSS THE EXTREME SOUTH AND SOUTHWEST SATURDAY AFTERNOON INTO SATURDAY EVENING...WHERE INTRUSION OF DRIER AIR WILL NOT BE AS PRONOUNCED AND WHERE CAPPING INVERSION DOES NOT MATERIALIZE. COMBINATION OF DIFFERENTIAL HEATING DURING TIME OF BEST HEATING AND LOCALIZED UPSLOPING OVER HIGHER TERRAIN MAY BE SUFFICIENT TO IGNITE AN ISOLATED STORM OR TWO. NEXT IN WHAT WILL BE A SERIES OF STRONG UPSTREAM SHORT WAVE TROFS IN THE NORTHERN STREAM WILL PUSH INTO THE UPPER GREAT LAKES ON SUNDAY...ALLOWING LOWER TROPOSPHERIC FLOW TO BACK MORE INTO THE SOUTHWEST...ADVECTING WARMER AND INCREASINGLY MOIST AIR BACK INTO THE REGION. WILL AGAIN RUN THREAT OF DIURNALLY-DRIVEN SHOWERS/THUNDERSTORMS SUNDAY AFTERNOON INTO SUNDAY EVENING...WITH HIGHEST POTENTIAL FOR ACTIVITY OVER THE SOUTHWESTERN UPSLOPE AREAS WHERE POTENTIAL TEMPERATURES WILL BE MAXIMIZED AND WHERE LAPSE RATES WILL BE THE MOST UNSTABLE IN UNCAPPED ENVIRONMENT. MOS GUIDANCE FOR DAYTIME HIGHS AND OVERNIGHT LOWS CAME IN REMARKABLY SIMILAR...BUT UNDERCUT BOTH NIGHTTIME LOWS AND DAYTIME HIGHS JUST A TAD IN ALL AREAS...MOST NOTABLY IN THE MOUNTAINS...TO OVERCOME PERSISTENT WARM BIAS DEMONSTRATED DURING THE PAST SEVERAL DAYS. && .LONG TERM /MONDAY THROUGH THURSDAY/... LONG TERM PERIOD WILL BE CHARACTERIZED BY SLOWLY AMPLIFYING UPPER TROF THAT WILL BECOME ESTABLISHED OVER THE NORTHEASTERN PART OF THE NATION FOLLOWING PASSAGE OF A SERIES OF STRONG SHORT WAVE TROFS IN THE NORTHERN STREAM MONDAY INTO MONDAY NIGHT. RELATIVELY DEEP WESTERLY LOWER TROPOSPHERIC WINDS OVER THE MID APPALACHIANS PRIOR TO ARRIVAL OF COLD FRONT WILL SUPPORT DEVELOPMENT OF A LEE TROF TO THE EAST OF THE BLUE RIDGE SUCH THAT ANY SHOWERS/THUNDERSTORMS IN VICINITY OF APPROACHING FRONT SHOULD BE MAXIMIZED ALONG THE WESTERN UPSLOPE AREAS FROM SOUTHEASTERN WEST VIRGINIA SOUTH INTO THE MOUNTAINS OF NORTH CAROLINA...AND ACROSS SOUTHSIDE VIRGINIA INTO NORTH CENTRAL NORTH CAROLINA...WITH A RELATIVE MINIMUM...ALBEIT STILL LOW THREAT POPS...EAST OF THE ALLEGHANY HIGHLANDS OUT TOWARD THE LYNCHBURG AREA. WILL GRADUALLY END THREAT OF POST FRONTAL SHOWERS/THUNDERSTORMS FROM THE NORTHWEST ON TUESDAY...AND ACROSS THE EXTREME SOUTH (WHICH WILL BE CLOSEST TO EXITING FRONT) ON TUESDAY NIGHT...TO BE FOLLOWED BY DRY AND COOLER FORECAST WEDNESDAY AND THURSDAY AS SURFACE HIGH PRESSURE BUILDS SOUTHEAST INTO NEW ENGLAND...AND RIDGES SOUTHWEST INTO THE MID ATLANTIC STATES EAST OF THE BLUE RIDGE. LONGER RANGE MODELS IN A BIT OF DISAGREEMENT IN EXTENT AND DURATION OF UPPER TROFFING OVER NORTHEASTERN PORTION OF THE NATION DURING THE LATTER PART OF THE PERIOD. THE ECMWF NOT AS AGGRESSIVE IN AMPLIFYING UPPER TROF OVER TIME AND DOES NOT INFUSE IT WITH ADDITIONAL UPSTREAM ENERGY...WHICH SUPPORTS FLATTER AND MORE PROGRESSIVE TROF AND WHICH ALLOWS UPPER RIDGE AND INCREASING HEAT AND HUMIDITY TO ADVANCE EAST OUT OF THE CENTRAL PLAINS BY LATE IN THE PERIOD. ECMWF DEPICTION GENERALLY DISCARDED WITH RESPECT TO GFS AND ENSEMBLE MEAN CLUSTERS CONSIDERING THAT LATEST RUN OF ECMWF A DISTINCT OUTLIER AND INCONSISTENT WITH ITS OWN LAGGED AVERAGES. WITH THE ABOVE IN MIND...FAVORED THE COOLER HPC GUIDANCE THROUGHOUT THE LONG TERM PERIOD...WITH ONLY SLIGHT TWEAKS MADE TO REFLECT LOCAL CLIMATOLOGICAL INFLUENCES. && .AVIATION /00Z FRIDAY THROUGH TUESDAY/... EARLIER CONVECTIVE LINE HAS SPLIT IN THE MIDDLE WITH BEST COVERAGE MAINLY SW OF THE TAF SITES EARLY THIS EVENING WITH ISOLATED STORMS NEAR KDAN AND KLYH. MAY SEE THE LINE COME BACK TOGETHER ACROSS THE SOUTH IN THE NEXT COUPLE OF HOURS BEFORE PUSHING SOUTH AND FADING WITH LOSS OF HEATING. THUS WILL KEEP A TSRA VICINITY OR TEMPO MENTION GOING ACROSS THE EASTERN SITES AND PERHAPS AN ISOLATED SHOWER THAT MAY REDEVELOP OVER THE NW AHEAD OF THE ACTUAL FRONT. MOST SITES WILL LIKELY SEE AT LEAST MVFR FOG DEVELOP. WITH A LIGHT WEST FLOW INTO THE MTNS...BLF AND LWB WILL LIKELY DROP TO IFR OR LIFR. CONDITIONS WILL IMPROVE QUICKLY EAST OF THE MTNS FRIDAY MORNING...AND MORE SLOWLY IN THE MTNS WITH THE LIGHT WEST WIND. BLF AND LWB WILL LIKELY NOT LIFT TO VFR UNTIL 15Z...POSSIBLY LATER. ON FRIDAY...THE FRONTAL BOUNDARY MAY STILL BE ACROSS SOUTHERN PORTION OF THE AREA...WITH BEST CHANCES FOR MORE CONVECTION AND TEMPORARY AFTERNOON/EVENING RESTRICTIONS TO VSBYS/CIGS AT DAN AND MAYBE AS FAR NORTH AS ROA. BY SATURDAY...THE FRONT IS LIKELY TO HAVE PUSHED FAR ENOUGH TO THE SOUTH TO KEEP CONVECTION SUPPRESSED. BY SUNDAY SOME DEGREE OF MOISTURE RETURN AS FRONT TO SOUTH WASHES OUT SO WILL ONCE AGAIN SEE AIR MASS TYPE DIURNAL THUNDERSTORMS...BUT MAY BE VERY ISOLATED. THEN PERHAPS MORE WIDESPREAD STORMS AHEAD OF ANOTHER COLD FRONT BY MONDAY. && .RNK WATCHES/WARNINGS/ADVISORIES... VA...NONE. NC...NONE. WV...NONE. && SYNOPSIS...JJ NEAR TERM...JJ SHORT TERM...WERT LONG TERM...WERT AVIATION...JH/JJ/SK
Hazardous weather outlook, Jun 24, 6:46 PM EDT, 19 hours 35 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE BLACKSBURG VA 646 PM EDT THU JUN 24 2010 VAZ007-010-011-018>020-WVZ042>045-252300- TAZEWELL-BLAND-GILES-CRAIG-ALLEGHANY VA-BATH-MERCER-SUMMERS-MONROE- GREENBRIER- 646 PM EDT THU JUN 24 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST VIRGINIA...WEST CENTRAL VIRGINIA AND SOUTHEAST WEST VIRGINIA. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NCZ001-002-018-VAZ009-012>017-022>024-032>035-043>047-058-059-252300- ASHE-ALLEGHANY NC-WATAUGA-SMYTH-WYTHE-PULASKI-MONTGOMERY-GRAYSON- CARROLL-FLOYD-ROANOKE-BOTETOURT-ROCKBRIDGE-PATRICK-FRANKLIN-BEDFORD- AMHERST-HENRY-PITTSYLVANIA-CAMPBELL-APPOMATTOX-BUCKINGHAM-HALIFAX- CHARLOTTE- 646 PM EDT THU JUN 24 2010 ...SEVERE THUNDERSTORM WATCH 408 IN EFFECT UNTIL 10 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST NORTH CAROLINA...CENTRAL VIRGINIA...SOUTH CENTRAL VIRGINIA...SOUTHWEST VIRGINIA AND WEST CENTRAL VIRGINIA. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. SEVERE THUNDERSTORM WATCH. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED. NCZ003>006-019-020-252300- SURRY-STOKES-ROCKINGHAM-CASWELL-WILKES-YADKIN- 646 PM EDT THU JUN 24 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH CAROLINA AND NORTHWEST NORTH CAROLINA. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. SCATTERED STRONG TO SEVERE THUNDERSTORMS MAY DEVELOP IN THE AREA FRIDAY AFTERNOON. DAMAGING WINDS WOULD AGAIN BE THE MAIN THREAT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED.
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 8:10 PM EDT | Severe Thunderstorm Warning | RNK | Rockingham, Stokes | 50 min |
| Jun 25, 4:09 PM EDT | Special Weather Statement | RNK | Yadkin | 36 min |
| Jun 25, 4:56 PM EDT | Severe Thunderstorm Warning | RNK | Yadkin | 33 min |
Nearby
Special Weather Statements in North Carolina, 2010Every special weather statement in 2010
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.