Alert archive / Virginia / Special Weather Statements in 2019
Special Weather Statement, NWS Blacksburg, VA
NWS Blacksburg, VA issued this special weather statement at Aug 18, 2019, 5:13 PM EDT for Montgomery County, Virginia. It was in force for 32 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
- Aug 18, 2019, 5:13 PM EDT (21:13 UTC)
- Expired
- Aug 18, 2019, 5:45 PM EDT
- In force
- 32 min
- Issued by
- NWS Blacksburg, VA
County Montgomery County, VA
The radar
The Roanoke radar (KFCX), 19 km from the middle of the area, began a volume at 21:14 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 9.2 hours before the alert went out and 328 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
- 751 J/kg
- Mixed-layer CIN
- -104 J/kg
- Mixed-layer LCL
- 1254 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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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 Aug 18, 3:46 PM EDT, 1 hour 27 minutes earlier.
Area forecast discussion, Aug 18, 3:46 PM EDT, 1 hour 27 minutes before
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</html>Hazardous weather outlook, Aug 18, 3:43 PM EDT, 1 hour 30 minutes before
Hazardous Weather Outlook National Weather Service Blacksburg VA 343 PM EDT Sun Aug 18 2019 NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059- WVZ042>044-507-508-191945- Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes- Yadkin-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Grayson- Carroll-Floyd-Craig-Alleghany VA-Bath-Roanoke-Botetourt-Rockbridge- Patrick-Franklin-Bedford-Amherst-Henry-Pittsylvania-Campbell- Appomattox-Buckingham-Halifax-Charlotte-Mercer-Summers-Monroe- Eastern Greenbrier-Western Greenbrier- 343 PM EDT Sun Aug 18 2019 This Hazardous Weather Outlook is for north central North Carolina, northwest North Carolina, central Virginia, south central Virginia, southwest Virginia, west central Virginia and southeast West Virginia. .DAY ONE...This afternoon and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Aug 18, 3:01 PM EDT, 2 hours 12 minutes before
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</html>Special weather statement, Aug 18, 3:46 PM EDT, 1 hour 27 minutes before
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</html>Special weather statement, Aug 18, 4:27 PM EDT, 46 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
427 PM EDT Sun Aug 18 2019
WVZ508-182130-
Western Greenbrier-
427 PM EDT Sun Aug 18 2019
...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN GREENBRIER
COUNTY...
Until 530 PM EDT.
At 427 PM EDT, a strong thunderstorm was located 7 miles north of
Leonard, moving northeast at 10 mph.
Winds in excess of 40 mph are possible with this storm.
This storm will remain over mainly rural areas of
Western Greenbrier County.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 3822 8036 3810 8036 3809 8041 3822 8050
3827 8044
TIME...MOT...LOC 2027Z 244DEG 9KT 3820 8038
BMGSpecial weather statement, Aug 18, 4:45 PM EDT, 28 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
445 PM EDT Sun Aug 18 2019
VAZ014-182115-
Montgomery-
445 PM EDT Sun Aug 18 2019
...A STRONG THUNDERSTORM WILL AFFECT MONTGOMERY COUNTY...
Until 515 PM EDT.
At 444 PM EDT, a strong thunderstorm was located near Merrimac,
moving northeast at 5 mph.
Winds in excess of 40 mph and pea size hail are possible with this
storm.
Locations impacted include...
Blacksburg...
Christiansburg...
Shawsville...
Mc Donalds Mill...
and Elliston-Lafayette.
This includes The following Location Virginia Tech.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 3719 8018 3713 8018 3707 8040 3714 8046
3723 8049 3733 8029
TIME...MOT...LOC 2044Z 244DEG 6KT 3718 8037
BMGSpecial weather statement, Aug 18, 5:13 PM EDT, 0 minutes before
Special Weather Statement National Weather Service BLACKSBURG VA 513 PM EDT Sun Aug 18 2019 VAZ014-182145- Montgomery- 513 PM EDT Sun Aug 18 2019 ...A STRONG THUNDERSTORM WILL AFFECT MONTGOMERY COUNTY... Until 545 PM EDT. At 509 PM EDT, a strong thunderstorm was located over Merrimac. The storm is nearly stationary. Winds in excess of 40 mph and pea size hail are possible with this storm. Locations impacted include... Blacksburg... Christiansburg... Shawsville... Merrimac... and Prices Fork. This includes the following Location Virginia Tech. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. LAT...LON 3710 8044 3721 8050 3729 8033 3715 8020 TIME...MOT...LOC 2109Z 240DEG 3KT 3717 8039 BMG
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 3:01 PM EDT | Special Weather Statement | RNK | Appomattox | 44 min |
| Aug 18, 4:45 PM EDT | Special Weather Statement | RNK | Montgomery | 30 min |
| Aug 18, 5:44 PM EDT | Special Weather Statement | RNK | Montgomery | 46 min |
| Aug 18, 5:47 PM EDT | Special Weather Statement | RNK | Rockbridge | 43 min |
| Aug 18, 5:55 PM EDT | Areal Flood Advisory | RNK | Montgomery | 62 min |
| Aug 18, 2:56 PM EDT | Special Weather Statement | RNK | Wilkes | 34 min |
| Aug 18, 3:34 PM EDT | Special Weather Statement | RNK | Ashe | 41 min |
| Aug 18, 3:46 PM EDT | Special Weather Statement | RNK | Wilkes | 44 min |
| Aug 18, 4:27 PM EDT | Special Weather Statement | RNK | Greenbrier | 63 min |
| Aug 18, 6:37 PM EDT | Special Weather Statement | RNK | Monroe | 38 min |
| Aug 18, 7:23 PM EDT | Severe Thunderstorm Warning | RNK | Monroe | 52 min |
Nearby
Special Weather Statements in Virginia, 2019Every special weather statement in 2019
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.