Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

July 6, 2012Watauga County, North Carolina

NWS Blacksburg, VA issued this special weather statement at Jul 6, 2012, 7:55 PM EDT for Watauga County, North Carolina. It was in force for 35 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
Jul 6, 2012, 7:55 PM EDT (23:55 UTC)
Expired
Jul 6, 2012, 8:30 PM EDT
In force
35 min
Issued by
NWS Blacksburg, VA

County Watauga County, NC

The radar

The Roanoke radar (KFCX), 144 km from the middle of the area, began a volume at 23:55 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.9 hours before the alert went out and 159 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 2012-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 74 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2012-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
74 J/kg
Mixed-layer CIN
-246 J/kg
Mixed-layer LCL
1674 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
26 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.

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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 Jul 6, 4:20 PM EDT, 3 hours 35 minutes earlier.

Area forecast discussion, Jul 6, 4:20 PM EDT, 3 hours 35 minutes before
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Hazardous weather outlook, Jul 6, 4:05 PM EDT, 3 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
405 PM EDT FRI JUL 6 2012

NCZ006-VAZ044>046-058-059-072015-
CASWELL-PITTSYLVANIA-CAMPBELL-APPOMATTOX-HALIFAX-CHARLOTTE-
405 PM EDT FRI JUL 6 2012

...HEAT ADVISORY IN EFFECT FROM 2 PM TO 8 PM EDT SATURDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH
CAROLINA...CENTRAL VIRGINIA AND SOUTH CENTRAL VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

HIGH TEMPERATURES TODAY WILL BE CLOSE TO THE CENTURY MARK.
COMBINED WITH THE HUMIDITY...HEAT INDICES WILL RANGE FROM 100 TO
104 DEGREES FOR A COUPLE OF HOURS THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   HEAT ADVISORY.

FOR SATURDAY AND SUNDAY...HEAT INDEX VALUES EACH DAY MAY REACH
105 TO 109 DEGREES...ESPECIALLY BETWEEN NOON AND 8PM.

SCATTERED THUNDERSTORMS ARE EXPECTED EACH DAY THROUGH THE PERIOD...
MAINLY DURING THE AFTERNOON AND EVENING HOURS. SOME OF THESE
STORMS MAY BECOME STRONG TO SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ003>005-019-020-VAZ022>024-032>035-043-072015-
SURRY-STOKES-ROCKINGHAM-WILKES-YADKIN-ROANOKE-BOTETOURT-ROCKBRIDGE-
PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY-
405 PM EDT FRI JUL 6 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH
CAROLINA...NORTHWEST NORTH CAROLINA...CENTRAL VIRGINIA...SOUTH
CENTRAL VIRGINIA...SOUTHWEST VIRGINIA AND WEST CENTRAL VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

HEAT INDICES WILL BE IN THE UPPER 90S TO LOW 100S THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

FOR SATURDAY AND SUNDAY...HEAT INDEX VALUES EACH DAY MAY REACH
105 TO 109 DEGREES...ESPECIALLY BETWEEN 2PM AND 8PM.

SCATTERED THUNDERSTORMS ARE EXPECTED EACH DAY THROUGH THE PERIOD...
MAINLY DURING THE AFTERNOON AND EVENING HOURS. SOME OF THESE
STORMS MAY BECOME STRONG TO SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ001-002-018-VAZ007-009>020-WVZ042>045-072015-
ASHE-ALLEGHANY NC-WATAUGA-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-
MONTGOMERY-GRAYSON-CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-MERCER-
SUMMERS-MONROE-GREENBRIER-
405 PM EDT FRI JUL 6 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST NORTH
CAROLINA...SOUTHWEST VIRGINIA...WEST CENTRAL VIRGINIA AND SOUTHEAST
WEST VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS SHOULD FIRE UP THIS AFTERNOON.
SOME OF THE STORMS COULD BECOME SEVERE WITH DAMAGING WINDS AND
LARGE HAIL.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

SCATTERED THUNDERSTORMS ARE EXPECTED EACH DAY THROUGH THE PERIOD...
MAINLY DURING THE AFTERNOON AND EVENING HOURS. SOME OF THESE
STORMS MAY BECOME STRONG TO SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

VAZ047-072015-
BUCKINGHAM-
405 PM EDT FRI JUL 6 2012

...EXCESSIVE HEAT WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

TEMPERATURES THIS AFTERNOON WILL APPROACH 100 DEGREES. COMBINED
WITH THE HUMIDITY...HEAT INDICES WILL BE AROUND 100 TO 104 DEGREES
FOR A COUPLE OF HOURS.

ALSO...ISOLATED STORMS ARE EXPECTED THIS AFTERNOON...WITH SOME
POSSIBLY BRINGING DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   EXCESSIVE HEAT WATCH.

FOR SATURDAY...HEAT INDICES ARE EXPECTED TO REACH AROUND 110
DEGREES FOR A FEW HOURS DURING THE AFTERNOON.

SUNDAY...HEAT INDEX VALUES MAY REACH 105 TO 109
DEGREES...ESPECIALLY BETWEEN NOON AND 8PM.

SCATTERED THUNDERSTORMS ARE EXPECTED EACH DAY THROUGH THE
PERIOD... MAINLY DURING THE AFTERNOON AND EVENING HOURS. SOME OF
THESE STORMS MAY BECOME STRONG TO SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 6, 4:54 PM EDT, 3 hours 1 minute before
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Special weather statement, Jul 6, 6:12 PM EDT, 1 hour 43 minutes before
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Local storm report, Jul 6, 6:45 PM EDT, 1 hour 10 minutes before
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Special weather statement, Jul 6, 7:14 PM EDT, 41 minutes before
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Special weather statement, Jul 6, 7:46 PM EDT, 9 minutes before
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Special weather statement, Jul 6, 7:55 PM EDT, 0 minutes before
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The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 6, 3:59 AM EDTExcessive Heat WatchRNKBuckingham23 hr
Jul 6, 3:59 AM EDTHeat AdvisoryRNKAmherst, Appomattox, Buckingham, Campbell, Charlotte, Halifax and 5 more40 hr
Jul 6, 10:27 AM EDTSpecial Weather StatementRNKAmherst, City of Buena Vista48 min
Jul 6, 2:26 PM EDTSpecial Weather StatementRNKCarroll34 min
Jul 6, 3:46 PM EDTSpecial Weather StatementRNKAlleghany29 min
Jul 6, 4:02 PM EDTSevere Thunderstorm WarningRNKAlleghany41 min
Jul 6, 4:25 PM EDTSevere Thunderstorm WarningRNKAlleghany19 min
Jul 6, 4:54 PM EDTSpecial Weather StatementRNKCraig36 min
Jul 6, 6:12 PM EDTSpecial Weather StatementRNKCaswell63 min
Jul 6, 7:14 PM EDTSpecial Weather StatementRNKAshe31 min
Jul 6, 7:46 PM EDTSpecial Weather StatementRNKWatauga59 min

Nearby

Special Weather Statements in North Carolina, 2012Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.