Alert archive / Virginia / Flash Flood Warnings in 2026

Flash Flood Warning 10, NWS Blacksburg, VA

July 12, 2026Alleghany County, Craig County, Virginia; Greenbrier County, Monroe County, West Virginia

NWS Blacksburg, VA issued this flash flood warning at Jul 12, 2026, 1:36 PM EDT for Alleghany County, Craig County, Virginia; Greenbrier County, Monroe County, West Virginia. It was in force for 6 hr. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 12, 2026, 1:36 PM EDT (17:36 UTC)
Expired
Jul 12, 2026, 7:45 PM EDT
In force
6 hr
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Flood severity
None

Counties Alleghany County, VA, Craig County, VA, Greenbrier County, WV, Monroe County, WV

The radar

The Roanoke radar (KFCX), 79 km from the middle of the area, began a volume at 17:40 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.

What was reported inside it

TimeReportWhereRemark
Jul 12, 2:00 PM EDTFLASH FLOOD1 E Potts Creek, VAShawvers Run flooded and washed out Mill Branch Road.
Jul 12, 2:00 PM EDTFLASH FLOOD1 E Potts Creek, VAShawvers Run flooded and washed out Mill Branch Road.
Jul 12, 2:00 PM EDTFLASH FLOOD2 Ne Potts Creek, VAA tributary to Potts Creek flooded the 8500 block of Potts Creek Road with at least two feet of water flowing over the road.
Jul 12, 2:00 PM EDTFLASH FLOOD2 S Jordan Mines, VAMill Branch flooded Mill Branch Road close to the intersection with Potts Creek Road in Jordan Mines.
Jul 12, 2:00 PM EDTFLASH FLOOD3 Ese Lewisburg, WVHoward Creek has flooded the Caldwell Tunnel on Route 63.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 5 storm reports to this flash flood warning; the first came 24 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 5.6 hours before the alert went out and 96 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, Roanoke, VA at 12:00Z on 2026-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 159 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, Roanoke, VA at 12:00Z on 2026-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 square meters per square second.193958Sfc1 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
159 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
789 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

471 
WGUS51 KRNK 121736
FFWRNK
VAC005-045-WVC025-063-122345-
/O.NEW.KRNK.FF.W.0010.260712T1736Z-260712T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Blacksburg VA
136 PM EDT Sun Jul 12 2026

The National Weather Service in Blacksburg has issued a

* Flash Flood Warning for...
  Northeastern Craig County in southwestern Virginia...
  Southwestern Alleghany VA County in west central Virginia...
  South Central Greenbrier County in southeastern West Virginia...
  Northeastern Monroe County in southeastern West Virginia...

* Until 745 PM EDT Sunday.

* At 136 PM EDT, local law enforcement reported thunderstorms 
  producing heavy rain on Midland Trail in Lewisburg. Between 3 and 
  4 inches of rain have fallen. The expected rainfall rate is 1.5 to 
  2.5 inches in 1 hour. Additional rainfall amounts of 1 to 2 inches 
  are possible in the warned area. Flash flooding is already 
  occurring.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Law enforcement reported.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Alleghany...                       Lewisburg...
  White Sulphur Springs...           Ronceverte...
  Jordan Mines...                    Roaring Mountain Summit...
  Earlehurst...

This includes the following streams and drainages...
  Dunlap Creek, Crow Run, Craig Creek, Boulder Run, Christleys Run, 
  Bens Run, Dry Creek, Barbours Creek, Cove Branch, Cove Creek, Dry 
  Branch and Blue Spring Run.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

When it is safe to do so, please send your reports of flooding, 
including mudslides or flooded roads, to the National Weather 
Service by calling toll free at 1...8 6 6...2 1 5...4 3 2 4. Reports 
and pictures can also be shared on the National Weather Service 
Blacksburg Facebook page and on X.

&&

LAT...LON 3786 8047 3772 8002 3752 8009 3769 8051
      3773 8059

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL RATE...1.5-2.5 INCHES IN 1 HOUR

$$

CB
3 follow-up statements
564 
WGUS71 KRNK 122006
FFSRNK

Flash Flood Statement
National Weather Service Blacksburg VA
406 PM EDT Sun Jul 12 2026

VAC005-045-WVC025-063-122345-
/O.CON.KRNK.FF.W.0010.000000T0000Z-260712T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Alleghany VA VA-Craig VA-Greenbrier WV-Monroe WV-
406 PM EDT Sun Jul 12 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM EDT THIS 
EVENING FOR NORTHEASTERN CRAIG, SOUTHWESTERN ALLEGHANY VA, SOUTH 
CENTRAL GREENBRIER AND NORTHEASTERN MONROE COUNTIES...

At 406 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 4 and 6 inches of rain have 
fallen. The expected rainfall rate is 0.5 to 1.5 inches in 1 hour. 
Additional rainfall amounts of 0.5 to 1 inch are possible in the 
warned area. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Alleghany...                       Lewisburg...
White Sulphur Springs...           Ronceverte...
Jordan Mines...                    Roaring Mountain Summit...
Earlehurst...

This includes the following streams and drainages...
  Dunlap Creek, Crow Run, Craig Creek, Boulder Run, Christleys Run, 
  Bens Run, Dry Creek, Barbours Creek, Cove Branch, Cove Creek, Dry 
  Branch and Blue Spring Run.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

When it is safe to do so, please send your reports of flooding, 
including mudslides or flooded roads, to the National Weather 
Service by calling toll free at 1...8 6 6...2 1 5...4 3 2 4. Reports 
and pictures can also be shared on the National Weather Service 
Blacksburg Facebook page and on X.

&&

LAT...LON 3786 8047 3772 8002 3752 8009 3769 8051
      3773 8059

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...0.5-1.5 INCHES IN 1 HOUR

$$

CB
254 
WGUS71 KRNK 122105
FFSRNK

Flash Flood Statement
National Weather Service Blacksburg VA
505 PM EDT Sun Jul 12 2026

VAC005-045-WVC025-063-122345-
/O.CON.KRNK.FF.W.0010.000000T0000Z-260712T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Alleghany VA VA-Craig VA-Greenbrier WV-Monroe WV-
505 PM EDT Sun Jul 12 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM EDT THIS 
EVENING FOR NORTHEASTERN CRAIG, SOUTHWESTERN ALLEGHANY VA, SOUTH 
CENTRAL GREENBRIER AND NORTHEASTERN MONROE COUNTIES...

At 505 PM EDT, local law enforcement reported that Mill Branch Road 
had been washed out and Potts Creek Road was under two feet of water 
in Alleghany County. Between 4 and 6 inches of rain have fallen. The 
expected rainfall rate is 0.25 to 0.75 inches in 1 hour. Additional 
rainfall amounts up to 0.5 inches are possible in the warned area. 
Flash flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Law enforcement reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Alleghany...                       Lewisburg...
White Sulphur Springs...           Ronceverte...
Jordan Mines...                    Roaring Mountain Summit...
Earlehurst...

This includes the following streams and drainages...
  Dunlap Creek, Crow Run, Craig Creek, Boulder Run, Christleys Run, 
  Bens Run, Dry Creek, Barbours Creek, Cove Branch, Cove Creek, Dry 
  Branch and Blue Spring Run.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

When it is safe to do so, please send your reports of flooding, 
including mudslides or flooded roads, to the National Weather 
Service by calling toll free at 1...8 6 6...2 1 5...4 3 2 4. Reports 
and pictures can also be shared on the National Weather Service 
Blacksburg Facebook page and on X.

&&

LAT...LON 3786 8047 3772 8002 3752 8009 3769 8051
      3773 8059

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL RATE...0.25-0.75 INCHES IN 1 HOUR

$$

CB
740 
WGUS71 KRNK 122336
FFSRNK

Flash Flood Statement
National Weather Service Blacksburg VA
736 PM EDT Sun Jul 12 2026

VAC005-045-WVC025-063-122346-
/O.EXP.KRNK.FF.W.0010.000000T0000Z-260712T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Alleghany VA VA-Craig VA-Greenbrier WV-Monroe WV-
736 PM EDT Sun Jul 12 2026

...FLASH FLOOD WARNING WILL EXPIRE AT 745 PM EDT THIS EVENING FOR 
NORTHEASTERN CRAIG, SOUTHWESTERN ALLEGHANY VA, SOUTH CENTRAL 
GREENBRIER AND NORTHEASTERN MONROE COUNTIES...

Flood waters have receded. The heavy rain has ended. Flooding is no 
longer expected to pose a threat. Please continue to heed remaining 
road closures.

&&

LAT...LON 3786 8047 3772 8002 3752 8009 3769 8051
      3773 8059

$$

CB

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 12, 6:49 AM EDT, 6 hours 47 minutes earlier. Its key messages:

  • Key Message 1: Slow moving cold front will be the focus for showers and storms into Monday with temperatures trending cooler each day. Key Message 2: Much of the area will be dry with warm/hot conditions for mid-week.
Area forecast discussion, Jul 12, 6:49 AM EDT, 6 hours 47 minutes before
Area Forecast Discussion
National Weather Service Blacksburg VA
649 AM EDT Sun Jul 12 2026

.WHAT HAS CHANGED...
Aviation updated. Made adjustments to Pops this morning to
account for radar/high res model trends.

Probability of precipitation higher today than Saturday.
Potential for some slow moving/anchored showers/storms along the
Blue Ridge late this afternoon/evening.

&&

.KEY MESSAGES...
Key Message 1: Slow moving cold front will be the focus for showers
and storms into Monday with temperatures trending cooler each
day.

Key Message 2: Much of the area will be dry with warm/hot conditions
for mid-week.

&&

.DISCUSSION...
Key Message 1: Slow moving cold front will be the focus for showers
and storms into Monday with temperatures trending cooler each
day.

Forecast centers around where front lays up today, but model
trends indicate more of a southward push leading to an easterly
low level wind, with west winds aloft. This pattern with
shortwave support tends to bring slow moving or anchored
showers/storms to the area, but with more cloud cover today, not
as concerned with severe weather, despite the marginal risk.
The potential for localized flash flooding is increasing,
especially along the Blue Ridge, mainly south of Roanoke to
Boone. At this time convective allowing models still differ on
where this potential band of heavier rains may set up, so
leaving out any flood watches, as 3/hr FFG still running 2-3",
and do not thing the flooding threat is widespread enough.

Until the 5h positive tilt trough pushes east Monday, shower
chances will remain higher. Still being on the north side of the
front will keep us cooler, but muggy with dewpoints in the 60s
to lower 70s. Humidity during the day could be 70 to 90 percent.

Key Message 2: Much of the area will be dry with warm/hot conditions
for mid-week.

High pressure will keep much of the region dry during the middle
part of the week. A stray shower or storm cannot be ruled out,
especially across the southern and western portions of the area.
These regions will be farthest away from the center of the high, and
by Thursday the next approaching weather system will be over parts
of the Ohio and Tennessee Valleys. Temperatures are expected to
trend milder each day, so that by Thursday, values about five to ten
degrees above normal will be common across the area. When
considering humidity as well, and we will be looking at much of the
Piedmont of Virginia and North Carolina experiencing late afternoon
heat index values around or a little over 100 degrees.

&&

.AVIATION /12Z SUNDAY THROUGH THURSDAY/...
Expect mainly a variable VFR to IFR cigs/vsbys this morning east
to west, with LWB in the LIFR range. Should have some MVFR/VFR
conditions for late morning, before showers/few storms arrive
and start to lower most areas to sub-VFR. Still periods of VFR
possible where it doesn't rain.

Tonight, showers may linger but cigs and some vsbys will likely
drop to IFR or worse over most areas.

Amendments as necessary based on radar trends. Thunder chances
seem low as cloud cover limits instability.

Winds overall look to remain light and variable at around 5
knots or less.

EXTENDED AVIATION OUTLOOK...
Expect showers across the region through at least Monday,
tapering off Monday night along with areas sub-VFR conditions
for both ceilings and visibility.

VFR conditions are expected for most locations Tuesday through
Thursday.

Prevailing winds for most locations during this period will
generally be less than 7 kts.

&&

.RNK WATCHES/WARNINGS/ADVISORIES...
VA...None.
NC...None.
WV...None.

&&

DISCUSSION...DS/WP
AVIATION...DS/EB/WP
Hazardous weather outlook, Jul 12, 4:28 AM EDT, 9 hours 8 minutes before
Hazardous Weather Outlook
National Weather Service Blacksburg VA
428 AM EDT Sun Jul 12 2026

VAZ018>020-023-024-034-035-045>047-059-WVZ043-044-507-508-130830-
Craig-Alleghany VA-Bath-Botetourt-Rockbridge-Bedford-Amherst-
Campbell-Appomattox-Buckingham-Charlotte-Summers-Monroe-
Eastern Greenbrier-Western Greenbrier-
428 AM EDT Sun Jul 12 2026

This Hazardous Weather Outlook is for central Virginia, south
central Virginia, southwest Virginia, west central Virginia and
southeast West Virginia.

.DAY ONE...Today and tonight.

Showers and a few thunderstorms today could bring torrential
downpours. Localized flooding is possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ001>006-018>020-VAZ007-009>017-022-032-033-043-044-058-WVZ042-
130830-
Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes-
Yadkin-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Grayson-
Carroll-Floyd-Roanoke-Patrick-Franklin-Henry-Pittsylvania-Halifax-
Mercer-
428 AM EDT Sun Jul 12 2026

This Hazardous Weather Outlook is for north central North Carolina,
northwest North Carolina, south central Virginia, southwest
Virginia, west central Virginia and southeast West Virginia.

.DAY ONE...Today and tonight.

There is a slight risk of excessive rainfall and a marginal risk
of severe thunderstorms mainly this afternoon and evening. Heavy
rainfall rates may lead to localized flooding in urban and poor-
drainage areas. The strongest thunderstorms may have gusty winds that
blow down trees or tree limbs.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Heavy downpours Monday may cause localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 8:23 AM EDTAreal Flood AdvisoryRNKTazewell3 hr
Jul 12, 12:27 PM EDTAreal Flood AdvisoryRNKBotetourt, Roanoke, City of Roanoke3 hr
Jul 12, 12:39 PM EDTAreal Flood AdvisoryRNKAlleghany, Botetourt, Craig3 hr
Jul 12, 1:39 PM EDTAreal Flood AdvisoryRNKBedford, Franklin, Pittsylvania3 hr
Jul 12, 3:35 PM EDTAreal Flood AdvisoryRNKHenry, Pittsylvania, City of Danville, City of Martinsville3 hr
Jul 12, 4:06 PM EDTFlood WatchRNKAppomattox, Bedford, Bland, Campbell, Carroll, Charlotte and 21 more28 hr
Jul 12, 6:14 PM EDTAreal Flood AdvisoryRNKBland, Giles, Tazewell3 hr
Jul 12, 12:00 PM EDTAreal Flood AdvisoryRNKGreenbrier, Monroe3 hr

Nearby

Flash Flood Warnings in Virginia, 2026Flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.