Alert archive / Virginia / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 20, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Apr 7, 2006, 6:12 PM EDT for Alleghany County, City of Covington, Virginia. It was in force for 33 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
- Apr 7, 2006, 6:12 PM EDT (22:12 UTC)
- Expired
- Apr 7, 2006, 6:45 PM EDT
- In force
- 33 min
- Issued by
- NWS Blacksburg, VA
- Area
- Counties, with a storm outline in the text
Counties Alleghany County, VA, City of Covington, VA
The radar
The Roanoke radar (KFCX), 89 km from the middle of the area, began a volume at 22:13 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 7, 5:43 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Roanoke, VA (KRNK), launched 12:00Z, 10.2 hours before the alert went out and 79 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1797 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 340 m²/s²
- 0-3 km storm-relative helicity
- 370 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 Blacksburg, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 7, 2:51 PM EDT, 3 hours 21 minutes earlier.
Area forecast discussion, Apr 7, 2:51 PM EDT, 3 hours 21 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BLACKSBURG VA 251 PM EDT FRI APR 7 2006 .SHORT TERM /TONIGHT THROUGH SATURDAY NIGHT/... INTENSE UPR LOW DROPPING DOWN THRU THE SOUTHERN PLAINS IS HELPING TO TRIGGER LINE OF SEVERE TSTMS OVER TN/KY THIS AFTN. THIS LINE IS EXPECTED TO EXPAND SOUTH INTO THE MISSISSIPPI AND HEAD EAST THIS EVENING TOWARD THE SOUTHERN APPS...WHILE A STRONG COLD FRONT DROPS SOUTH INTO THE OHIO RIVER VALLEY. THE LINE IS EXPECTED TO WEAKEN AS IT APPROACHES OUR REGION THIS EVENING WITH STABILITY INCREASING...HOWEVER MOMENTUM MAY CARRY SOME SVR CELLS TO OUR WESTERN BORDER COUNTIES. OTHERWISE EXPECT RAINFALL TO BE SIGNIFICANT OVERNIGHT AND EARLY SATURDAY AS THE COLD FRONT DROPS THRU THE FCST AREA. BEST RAINFALL SHOULD BE ACROSS OUR SOUTHERN COUNTIES WHERE 850 JET AND MOISTR TRANSPORT WILL BE STRONGEST AND MID LEVEL LAPSE RATES WILL BE THE STEEPEST. RAINFALL ON THE BACKSIDE OF THE FRONT WILL PERSIST THRU THE MORNING HOURS SATURDAY AS MUCH COOLER AIR POURS DOWN FROM THE NORTH. TEMPS TMRW WILL NOT RECOVER EXCEPT FOR A DEGREE OR TWO. LOOK FOR CLEARING SKIES FROM THE NORTH LATE TMRW THRU THE EVENING. THEN HIGH PRESSURE BUILDS IN SUNDAY WITH COOL NIGHTS AND MILD AFTERNOONS FOR THE EARLY PART OF THE WEEK. && .LONG TERM /SUNDAY THROUGH FRIDAY/... THE EARLY PART OF NEXT WEEK WILL BE A RELATIVELY QUIET...MILD PERIOD WITH UPPER RIDGING KEEPING IMPULSES RIDING BY WELL TO OUR NORTH. THE ONLY CHANCE OF RAIN COMES LATE WED THRU EARLY THURSDAY AS A STRONG UPPER WAVE TRACKS ACROSS THE NORTHERN TIER OF THE U.S. AND DRAGS A WEAK FRONT ACROSS THE SOUTHERN APPS. AFTERWHICH ANOTHER UPR RIDGE BUILDS AND HIGH PRESSURE CONTROLS THRU THE END OF THE WEEK. && .AVIATION... CLOUDS HAVE THINNED OR DISSIPATED RATHER QUICKLY WITH THE STRONG MIXING THIS AFTERNOON. WINDS WILL INCRS FROM THE SW THIS AFTN GUSTING NEAR 20 TO 30 MPH. SOME CU FORMING BACK IN WV BUT DONT EXPECT MUCH ORGANIZED CONVECTION UNTIL APPROACH OF THE STRONG SYSTEM OVER THE TN VALLEY LATER THIS EVENING AT WV TAF SITES AND AROUND MIDN E OF MTNS. MVFR CIGS LIKELY BEHIND FRONT TMRW. && .RNK WATCHES/WARNINGS/ADVISORIES... VA...NONE. NC...NONE. WV...NONE. && JS/PC/JS
Hazardous weather outlook, Apr 7, 5:46 AM EDT, 12 hours 26 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BLACKSBURG VA 546 AM EDT FRI APR 7 2006 NCZ001-002-018-VAZ007-009>020-WVZ042>045-080945- ALLEGHANY NC-ALLEGHANY VA-ASHE-BATH-BLAND-CARROLL-CRAIG-FLOYD-GILES- GRAYSON-GREENBRIER-MERCER-MONROE-MONTGOMERY-PULASKI-SMYTH-SUMMERS- TAZEWELL-WATAUGA-WYTHE- 546 AM EDT FRI APR 7 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST NORTH CAROLINA...SOUTHWEST VIRGINIA...WEST CENTRAL VIRGINIA AND SOUTHEAST WEST VIRGINIA. .DAY ONE...THIS EVENING AND OVERNIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS WEST OF THE BLUE RIDGE...MAINLY THIS EVENING AND INTO THE OVERNIGHT HOURS. STRONG THUNDERSTORMS WILL LIKELY FORM IN EASTERN TENNESSEE LATE THIS AFTERNOON AND MOVE NORTHEASTWARD INTO THE MOUNTAINS OF NORTHWEST NORTH CAROLINA AND FAR SOUTHWEST VIRGINIA BY THIS EVENING. THEY WILL LIKELY BE WEAKENING AS THEY MOVE IN...BUT A FEW WILL BE CAPABLE OF PRODUCING SEVERE STRAIGHT LINE WINDS WHEN THEY FIRST MOVE INTO THE MOUNTAINS FROM THE SOUTHWEST. AFTER MIDNIGHT...ADDITIONAL THUNDERSTORMS ALONG A COLD FRONT IN THE OHIO VALLEY ARE EXPECTED TO MOVE IN FROM THE NORTHWEST ACROSS WEST VIRGINIA. DUE TO THE TIME OF NIGHT WHEN THEY ARE MOST LIKELY TO ARRIVE...THE THREAT FOR ANY REMAINING SEVERE WEATHER FROM THESE STORMS IS CONSIDERED TO BE VERY LOW AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY MUCH COOLER AIR WILL USHER OUT LINGERING SHOWERS AND THUNDERSTORMS BY LATE SATURDAY...BUT HAZARDOUS WEATHER IS NOT EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED IN SOME LOCATIONS BY LATE THIS EVENING OR TONIGHT. NCZ003>006-019-020-VAZ022>024-032>035-043>047-058-059-080945- AMHERST-APPOMATTOX-BEDFORD-BOTETOURT-BUCKINGHAM-CAMPBELL-CASWELL- CHARLOTTE-FRANKLIN-HALIFAX-HENRY-PATRICK-PITTSYLVANIA-ROANOKE- ROCKBRIDGE-ROCKINGHAM-STOKES-SURRY-WILKES-YADKIN- 546 AM EDT FRI APR 7 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL NORTH CAROLINA...NORTHWEST NORTH CAROLINA...CENTRAL VIRGINIA... SOUTH CENTRAL VIRGINIA...SOUTHWEST VIRGINIA AND WEST CENTRAL VIRGINIA. .DAY ONE...TODAY AND TONIGHT GUSTY SOUTHWEST WINDS THIS AFTERNOON...COMBINED WITH LOW FUEL MOISTURES...WILL RESULT IN AN ELEVATED FIRE DANGER THIS AFTERNOON. MINIMUM RELATIVE HUMIDITIES ARE NOT EXPECTED TO DROP BELOW 30 PERCENT HOWEVER. SHOWERS AND THUNDERSTORMS MAY DEVELOP OVERNIGHT...AND A FEW MAY BE STRONG IN THE FOOTHILLS OF NORTHWEST NORTH CAROLINA...BUT THE THREAT OF SEVERE WEATHER APPEARS MINIMAL AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. SK
In the hours before
Special weather statement, Apr 7, 4:48 PM EDT, 1 hour 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BLACKSBURG VA 448 PM EDT FRI APR 7 2006 VAZ020-072200- BATH- INCLUDING THE CITY OF...HOT SPRINGS 448 PM EDT FRI APR 7 2006 ...STRONG THUNDERSTORM MAY CLIP NORTHWEST BATH COUNTY... AN ISOLATED STRONG THUNDERSTORM WILL MOVE QUICKLY EAST ACROSS THE EXTREME NORTH OR NORTHWEST PORTION OF BATH COUNTY. THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 45 MPH ALONG WITH SMALL HAIL AND UP TO A HALF INCH OF RAIN. THIS STORM WILL AFFECT AREAS FROM MOUNTAIN GROVE AND BACOVA NORTH ALONG HIGHWAY TWO TWENTY BETWEEN 4:45 PM AND 5:15 PM. PERSONS IN THESE AREAS SHOULD TAKE COVER AS THIS STORM MOVES THROUGH.
Special weather statement, Apr 7, 5:21 PM EDT, 51 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BLACKSBURG VA 521 PM EDT FRI APR 7 2006 WVZ043-045-072230- GREENBRIER-SUMMERS- 521 PM EDT FRI APR 7 2006 SCATTERED THUNDERSTORMS WILL MOVE NORTHEAST AT 35 MPH INTO NORTHERN SUMMERS COUNTY AND INTO MUCH OF GREENBRIER COUNTY BEFORE 630 PM EDT. MOST OF THE ACTIVITY WILL REMAIN NORTH AND WEST OF A LINE EXTENDING FROM HINTON TO LEWISBURG THROUGH THE PERIOD. SOME OF THE STRONGER STORMS MAY BE ACCOMPANIED BY PEA TO MARBLE SIZED HAIL AND WIND GUSTS APPROACHING 50 MPH. WERT
Local storm report, Apr 7, 6:07 PM EDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
607 PM EDT FRI APR 07 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0545 PM HAIL QUINWOOD 38.06N 80.70W
04/07/2006 E0.75 INCH GREENBRIER WV PUBLIC
HAIL LASTED 2 TO 3 MINUTES.
&&
HYSELLThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 6:30 PM EDT | Severe Thunderstorm Warning | RNK | Bath, Rockbridge, City of Lexington | 45 min |
| Apr 7, 7:00 PM EDT | Severe Thunderstorm Warning | RNK | Alleghany, City of Covington | 28 min |
| Apr 7, 7:23 PM EDT | Severe Thunderstorm Warning | RNK | Carroll, Floyd, Grayson, Montgomery, Pulaski, Roanoke and 6 more | 52 min |
| Apr 7, 7:33 PM EDT | Severe Thunderstorm Warning | RNK | Amherst, Bedford, Botetourt, Campbell, Rockbridge, City of Buena Vista and 2 more | 57 min |
| Apr 7, 5:31 PM EDT | Severe Thunderstorm Warning | RNK | Greenbrier | 44 min |
| Apr 7, 5:33 PM EDT | Severe Thunderstorm Warning | RNK | Summers | 24 min |
| Apr 7, 5:53 PM EDT | Severe Thunderstorm Warning | RNK | Greenbrier | 29 min |
| Apr 7, 6:27 PM EDT | Severe Thunderstorm Warning | RNK | Greenbrier, Summers | 44 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 2006Every severe thunderstorm warning in 2006
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.