Alert archive / West Virginia / Flash Flood Warnings in 2026
Flash Flood Warning 14, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Jul 21, 2026, 10:42 PM EDT for Greenbrier County, West Virginia. It was in force for 2 hr. 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 21, 2026, 10:42 PM EDT (02:42 UTC)
- Expired
- Jul 22, 2026, 12:45 AM EDT
- In force
- 2 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
County Greenbrier County, WV
The radar
The Roanoke radar (KFCX), 104 km from the middle of the area, began a volume at 02:44 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
Roanoke, VA (KRNK), launched 00:00Z, 2.7 hours before the alert went out and 118 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
- 2535 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 789 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 246 m²/s²
- Significant tornado parameter
- 3.1
- Supercell composite
- 17.2
What forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at Jul 21, 7:22 PM EDT, 3 hours 20 minutes earlier. Its key messages:
- 1) A Severe Thunderstorm Watch is in effect through 10 PM tonight, and a Flood Watch in effect for the entire area through tomorrow for strong to severe showers and thunderstorms.
Area forecast discussion, Jul 21, 7:22 PM EDT, 3 hours 20 minutes before
Area Forecast Discussion
National Weather Service Blacksburg VA
722 PM EDT Tue Jul 21 2026
.WHAT HAS CHANGED...
A Severe Thunderstorm Watch has been issued for most of the area
east of Interstate 77. Damaging winds are the main threat, but
hail and an isolated tornado or two cannot be ruled out.
A Flood Watch is also in effect through tomorrow for the entire
area.
&&
.KEY MESSAGES...
1) A Severe Thunderstorm Watch is in effect through 10 PM
tonight, and a Flood Watch in effect for the entire area through
tomorrow for strong to severe showers and thunderstorms.
&&
.DISCUSSION...
KEY MESSAGE 1...A Severe Thunderstorm Watch is in effect through
10 PM tonight, and a Flood Watch in effect for the entire area
through tomorrow for strong to severe showers and thunderstorms.
The latest surface analysis shows a warm front well northeast
of the area, with a cold front stretching from the eastern Great
Lakes to IL and westward. This will be the main driving force
for severe weather later this evening. Aloft, troughing
encompasses much of the eastern states along and north of the
Mid Atlantic region.
The first wave of positive vorticity advection was shifting into
the area and had sparked a line of storms moving through SE
WV and into northern VA. These storms are mainly a flood threat
if they continue to train. As they shift south and interact
with addition instability this afternoon and evening, expect a
few strong to severe storms. Along the cold front, more
widespread clusters of multicells push south after 4 to 5 pm
and tonight. Wet microbursts will be the main concern today and
tonight, although all convection may have torrential rainfall.
Shear between 0-6 km increases to 35 to 45 kts by later this
afternoon and evening as the nose of the 300mb upper level jet
reaches the area, along and north of the front. Also concerning
will be the increasing 0-1 km shear that may reach 25 kts, in
the vicinity of the front where surface winds may back. This
points towards increasing low level rotation resulting in a few
supercells and a small tornado risk.
The cold front looks to slow down as it crosses the forecast
area from north to south, stalling somewhere in VA or northern
NC overnight. Thus the high threat for urban, small stream, and
flash flooding will continue overnight into tomorrow with
training cells along the boundary. CAMs are also hinting at an
MCV or two in the area tomorrow morning, which would support
stronger and heavier storms. Additional development is expected
tomorrow, with additional short wave energy and favorable
kinematics moving into the Mid Atlantic region. Along the
front, the flooding threat will continue through into tomorrow
night.
As drier air begins to work in from the north by Thursday,
chances for rain sink south. After a brief break, more chances
for showers and storms return Friday into the weekend, as
additional mid level short waves move through. With the numerous
chances for rain and cloud cover in the forecast, temperatures
will be in the 70s for the entire area Thursday through
Saturday.
&&
.AVIATION /00Z WEDNESDAY THROUGH SUNDAY/...
Mostly VFR conditions observed across the area, with a few
pockets of MVFR at this time, though ceilings are less than 2kft
in some places. Another round of rain with some embedded
thunderstorms is moving into the mountains, though the strongest
storms are still over central and northern WV currently. Some
uncertainty in how far east the thunderstorms make it, but
higher confidence in rain continuing through the overnight.
Expect periods of MVFR to IFR within some of the heavier rain
showers, with quick reductions in visibility. Storms will wane
by 06Z or so, with showers lingering for a few more hours. Wind
gusts between 15 and 20 knots will also continue into the
overnight hours, and could gust higher near thunderstorms.
These showers and thunderstorms will have the potential for
producing strong and erratic winds, as well as some hail and an
isolated tornado can't be ruled out.
More scattered showers and storms are likely Wednesday
afternoon, but most model guidance has it staying south of
Interstate 64, so have not included any mention of thunder for
KLWB for tomorrow at this time. However, there is higher
probability of fog developing at KLWB tonight through Wednesday
morning.
Winds will turn more westerly in the mountains for tomorrow,
after the frontal passage, but mostly southwesterly in the
Piedmont. Wind speeds should stay between 5 to 10 knots until
after the current TAF period ends, at 00Z Thursday.
Forecast confidence is moderate.
EXTENDED AVIATION OUTLOOK...
Drier conditions move in for Thursday and Friday, with no rain
chances outside of DAN, though only isolated in coverage. Better
rain chances return for Saturday, and Sunday looks to dry out.
Overnight fog will remain possible each night, particularly at
LWB.
&&
.RNK WATCHES/WARNINGS/ADVISORIES...
VA...Flood Watch through Wednesday morning for VAZ007-009>020-
022>024.
Flood Watch through Wednesday evening for VAZ032>035-043>047-
058-059.
NC...Flood Watch through Wednesday morning for NCZ001-002-018.
Flood Watch through Wednesday evening for NCZ003>006-019-020.
WV...Flood Watch through Wednesday morning for WVZ042>044-507-508.
&&
DISCUSSION...AS/SH
AVIATION...AS/SHHazardous weather outlook, Jul 21, 3:07 PM EDT, 7 hours 35 minutes before
Hazardous Weather Outlook National Weather Service Blacksburg VA 307 PM EDT Tue Jul 21 2026 VAZ020-024-WVZ507-508-221915- Bath-Rockbridge-Eastern Greenbrier-Western Greenbrier- 307 PM EDT Tue Jul 21 2026 ...FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING... ...SEVERE THUNDERSTORM WATCH 509 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for west central Virginia and southeast West Virginia. .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. Flood Watch. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report hail of any size, as well as any damage caused by thunderstorm winds in their area. VAZ035-047-221915- Amherst-Buckingham- 307 PM EDT Tue Jul 21 2026 ...SEVERE THUNDERSTORM WATCH 509 IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...FLOOD WATCH IN EFFECT FROM 7 PM EDT THIS EVENING THROUGH WEDNESDAY EVENING... This Hazardous Weather Outlook is for central Virginia. .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. Severe Thunderstorm Watch. Flood Watch. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. There is a Slight Risk of severe thunderstorms tomorrow with damaging winds. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report hail of any size, as well as any damage caused by thunderstorm winds in their area. VAZ014-018-019-022-023-221915- Montgomery-Craig-Alleghany VA-Roanoke-Botetourt- 307 PM EDT Tue Jul 21 2026 ...FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING... ...SEVERE THUNDERSTORM WATCH 509 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southwest Virginia and west central Virginia. .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. Flood Watch. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. There is a Marginal Risk of severe thunderstorms tomorrow with damaging winds. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report hail of any size, as well as any damage caused by thunderstorm winds in their area. VAZ034-221915- Bedford- 307 PM EDT Tue Jul 21 2026 ...SEVERE THUNDERSTORM WATCH 509 IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...FLOOD WATCH IN EFFECT FROM 7 PM EDT THIS EVENING THROUGH WEDNESDAY EVENING... This Hazardous Weather Outlook is for south central Virginia. .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. Severe Thunderstorm Watch. Flood Watch. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. There is a Marginal Risk of severe thunderstorms tomorrow with damaging winds. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report hail of any size, as well as any damage caused by thunderstorm winds in their area. VAZ007-010-011-WVZ042>044-221915- Tazewell-Bland-Giles-Mercer-Summers-Monroe- 307 PM EDT Tue Jul 21 2026 ...FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING... This Hazardous Weather Outlook is for southwest Virginia and southeast West Virginia. .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. Flood Watch. There is a Enhanced Risk of severe thunderstorms through tonight with damaging winds. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. There is a Marginal Risk of severe thunderstorms tomorrow with damaging winds. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report hail of any size, as well as any damage caused by thunderstorm winds in their area. NCZ001-002-VAZ009-012-013-015-016-221915- Ashe-Alleghany NC-Smyth-Wythe-Pulaski-Grayson-Carroll- 307 PM EDT Tue Jul 21 2026 ...FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING... This Hazardous Weather Outlook is for northwest North Carolina and southwest Virginia. .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. Flood Watch. There is a Slight Risk of severe thunderstorms through tonight with damaging winds. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. There is a Slight Risk of severe thunderstorms tomorrow with damaging winds. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report hail of any size, as well as any damage caused by thunderstorm winds in their area. VAZ017-221915- Floyd- 307 PM EDT Tue Jul 21 2026 ...FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING... ...SEVERE THUNDERSTORM WATCH 509 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southwest Virginia. .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. Flood Watch. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. There is a Slight Risk of severe thunderstorms tomorrow with damaging winds. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report hail of any size, as well as any damage caused by thunderstorm winds in their area. VAZ032-033-043>046-058-059-221915- Patrick-Franklin-Henry-Pittsylvania-Campbell-Appomattox-Halifax- Charlotte- 307 PM EDT Tue Jul 21 2026 ...SEVERE THUNDERSTORM WATCH 509 IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...FLOOD WATCH IN EFFECT FROM 7 PM EDT THIS EVENING THROUGH WEDNESDAY EVENING... This Hazardous Weather Outlook is for central Virginia, south central Virginia, southwest Virginia and west central Virginia. .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. Severe Thunderstorm Watch. Flood Watch. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report hail of any size, as well as any damage caused by thunderstorm winds in their area. NCZ003>006-019-020-221915- Surry-Stokes-Rockingham-Caswell-Wilkes-Yadkin- 307 PM EDT Tue Jul 21 2026 ...SEVERE THUNDERSTORM WATCH 509 IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...FLOOD WATCH IN EFFECT FROM 7 PM EDT THIS EVENING THROUGH WEDNESDAY EVENING... This Hazardous Weather Outlook is for north central North Carolina and northwest 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. Severe Thunderstorm Watch. Flood Watch. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. There is a Marginal to Slight Risk of severe thunderstorms tomorrow with damaging winds. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report hail of any size, as well as any damage caused by thunderstorm winds in their area. NCZ018-221915- Watauga- 307 PM EDT Tue Jul 21 2026 ...FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING... This Hazardous Weather Outlook is for northwest 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. Flood Watch. There is a Slight Risk of severe thunderstorms through tonight with damaging winds. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. There is a Marginal Risk of severe thunderstorms tomorrow with damaging winds. .SPOTTER INFORMATION STATEMENT... Weather spotters are requested to report hail of any size, as well as any damage caused by thunderstorm winds in their area.
In the hours before
Local storm report, Jul 21, 4:49 PM EDT, 5 hours 53 minutes before
Preliminary Local Storm Report
National Weather Service Blacksburg VA
449 PM EDT Tue Jul 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0236 PM Tstm Wnd Dmg 1 NNW Bedford 37.35N 79.53W
07/21/2026 Bedford VA Trained Spotter
Photo shared of a large uprooted tree near
the intersection of Peaksview St and Peaks
Rd just north of the City of Bedford. Time
is estimate from radar.
&&
CDGSpecial weather statement, Jul 21, 5:11 PM EDT, 5 hours 31 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
511 PM EDT Tue Jul 21 2026
VAZ033-043-212130-
Henry VA-Franklin VA-
511 PM EDT Tue Jul 21 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN HENRY AND
SOUTHEASTERN FRANKLIN COUNTIES THROUGH 530 PM EDT...
At 511 PM EDT, Doppler radar was tracking a strong thunderstorm near
Figsboro, or near Martinsville, moving east at 30 mph.
HAZARD...Wind gusts up to 50 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Snow Creek...
Leatherwood...
Mountain Valley...
Figsboro...
and Oak Level.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
north central North Carolina...and south central, central,
southwestern and west central Virginia.
&&
LAT...LON 3678 7994 3690 7970 3683 7964 3673 7967
3670 7983
TIME...MOT...LOC 2111Z 252DEG 26KT 3674 7982
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
BMGLocal storm report, Jul 21, 5:30 PM EDT, 5 hours 12 minutes before
Preliminary Local Storm Report
National Weather Service Blacksburg VA
530 PM EDT Tue Jul 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0445 PM Tstm Wnd Dmg 1 NNW Martinsville City 36.69N 79.87W
07/21/2026 City of MartinsvillVA 911 Call Center
Sheriffs Office reported numerous trees down
throughout the City of Martinsville.
&&
CDGLocal storm report, Jul 21, 6:23 PM EDT, 4 hours 19 minutes before
Preliminary Local Storm Report
National Weather Service Blacksburg VA
623 PM EDT Tue Jul 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0248 PM Tstm Wnd Dmg 1 SW Goode 37.36N 79.39W
07/21/2026 Bedford VA Public
Social media post showed a picture of downed
tree on top of a cow in the community of
Goode. The cow died as a result. Time
estimate from radar.
&&
CDGThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 11:28 PM EDT | Tornado Warning | RNK | Amherst, Rockbridge | 26 min |
| Jul 22, 12:36 AM EDT | Special Weather Statement | RNK | Buckingham | 24 min |
| Jul 22, 4:35 AM EDT | Areal Flood Advisory | RNK | Bland, Tazewell | 3 hr |
| Jul 22, 4:54 AM EDT | Flash Flood Warning | RNK | Bland, Tazewell | 3 hr |
| Jul 22, 6:04 AM EDT | Special Weather Statement | RNK | Pulaski, Wythe, City of Radford | 26 min |
| Jul 22, 7:23 AM EDT | Special Weather Statement | RNK | Campbell | 37 min |
| Jul 22, 7:26 AM EDT | Areal Flood Advisory | RNK | Smyth, Wythe | 2 hr |
| Jul 22, 9:27 AM EDT | Areal Flood Advisory | RNK | Smyth, Wythe | 3 hr |
| Jul 22, 10:16 AM EDT | Special Weather Statement | RNK | Pittsylvania | 29 min |
| Jul 22, 11:15 AM EDT | Areal Flood Advisory | RNK | Carroll, Floyd, Franklin, Henry, Patrick, City of Martinsville | 3 hr |
| Jul 22, 12:12 PM EDT | Flash Flood Warning | RNK | Henry, Pittsylvania, City of Martinsville | 6 hr |
| Jul 22, 12:13 PM EDT | Severe Thunderstorm Warning | RNK | Halifax, Pittsylvania, City of Danville | 62 min |
| Jul 22, 12:36 PM EDT | Tornado Warning | RNK | Halifax, Pittsylvania | 24 min |
| Jul 22, 2:12 PM EDT | Special Weather Statement | RNK | City of Danville | 33 min |
| Jul 22, 2:22 PM EDT | Flash Flood Warning | RNK | Henry, Patrick, Pittsylvania, City of Danville | 4 hr |
| Jul 22, 2:15 PM EDT | Special Weather Statement | RNK | Surry, Wilkes | 30 min |
| Jul 22, 2:48 PM EDT | Special Weather Statement | RNK | Stokes, Surry | 27 min |
| Jul 21, 9:08 PM EDT | Severe Thunderstorm Warning | RNK | Greenbrier | 67 min |
| Jul 21, 9:17 PM EDT | Tornado Warning | RNK | Greenbrier | 28 min |
| Jul 21, 9:36 PM EDT | Areal Flood Advisory | RNK | Greenbrier | 3 hr |
| Jul 21, 9:48 PM EDT | Tornado Warning | RNK | Greenbrier | 27 min |
| Jul 21, 10:06 PM EDT | Tornado Warning | RNK | Greenbrier | 24 min |
Nearby
Flash Flood Warnings in West Virginia, 2026Every flash flood warning in 2026
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.