Alert archive / Virginia / Flash Flood Warnings in 2026
Flash Flood Warning 36, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at Aug 27, 2026, 8:32 PM EDT for Alleghany County, Bath County, Virginia. It was in force for 6 hr. 2 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
- Aug 27, 2026, 8:32 PM EDT (00:32 UTC)
- Expired
- Aug 28, 2026, 2:30 AM EDT
- In force
- 6 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Alleghany County, VA, Bath County, VA
The radar
The Roanoke radar (KFCX), 111 km from the middle of the area, began a volume at 00:32 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 28, 12:00 AM EDT | RAIN 7.44 | 2 Ese Carloover, VA | 24 hour rainfall total. Rain occurred between 7 PM EDT and 12 AM EDT 8/28. |
| Aug 28, 1:35 AM EDT | RAIN 3.45 | Ingalls Field, VA | AWOS station KHSP Ingalls Field Airport. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
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 00:00Z, 0.5 hours before the alert went out and 83 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
- 1348 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 952 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.3
The text
As transmitted.
643
WGUS51 KRNK 280032
FFWRNK
VAC005-017-280630-
/O.NEW.KRNK.FF.W.0036.260828T0032Z-260828T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Blacksburg VA
832 PM EDT Thu Aug 27 2026
The National Weather Service in Blacksburg has issued a
* Flash Flood Warning for...
Northeastern Alleghany VA County in west central Virginia...
Southern Bath County in west central Virginia...
* Until 230 AM EDT.
* At 832 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1.5 and 3.5 inches of
rain have fallen. The expected rainfall rate is 1.5 to 3 inches in
1 hour. Additional rainfall amounts of 0.5 to 1.5 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
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...
Clifton Forge, Hot Springs, Warm Springs, Millboro, Iron Gate,
Douthat State Park and Ingalls Field.
This includes the following streams and drainages...
Claylick Run, Cedar Creek, Cabin Creek, Cowpasture River, Blue Suck
Branch, Chimney Run and Back Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
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 3810 7986 3810 7980 3801 7954 3798 7956
3793 7961 3787 7965 3787 7964 3786 7962
3783 7963 3781 7965 3776 7967 3780 7983
3787 7999 3793 8000
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1.5-3 INCHES IN 1 HOUR
$$
EB3 follow-up statements
403
WGUS71 KRNK 280148
FFSRNK
Flash Flood Statement
National Weather Service Blacksburg VA
948 PM EDT Thu Aug 27 2026
VAC005-017-280630-
/O.CON.KRNK.FF.W.0036.000000T0000Z-260828T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Alleghany VA-Bath VA-
948 PM EDT Thu Aug 27 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM EDT FRIDAY FOR
NORTHEASTERN ALLEGHANY VA AND SOUTHERN BATH COUNTIES...
At 948 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 1.5 and 4 inches of rain have
fallen. The expected rainfall rate is 2 to 4 inches in 1 hour.
Additional rainfall amounts of 0.5 to 1.5 inches are possible in the
warned area. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Radar indicated.
IMPACT...Life threatening flash flooding of creeks and streams, urban
areas, highways, streets and underpasses.
Some locations that will experience flash flooding include...
Clifton Forge, Hot Springs, Warm Springs, Millboro, Iron Gate,
Douthat State Park and Ingalls Field.
This includes the following streams and drainages...
Claylick Run, Cedar Creek, Cabin Creek, Cowpasture River, Blue Suck
Branch, Chimney Run and Back Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
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 3810 7986 3810 7980 3801 7954 3798 7956
3793 7961 3787 7965 3787 7964 3786 7962
3783 7963 3781 7965 3776 7967 3780 7983
3787 7999 3793 8000
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...2-4 INCHES IN 1 HOUR
$$
EB273
WGUS71 KRNK 280324
FFSRNK
Flash Flood Statement
National Weather Service Blacksburg VA
1124 PM EDT Thu Aug 27 2026
VAC005-017-280630-
/O.CON.KRNK.FF.W.0036.000000T0000Z-260828T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Alleghany VA-Bath VA-
1124 PM EDT Thu Aug 27 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM EDT FRIDAY FOR
NORTHEASTERN ALLEGHANY VA AND SOUTHERN BATH COUNTIES...
At 1124 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 1.5 and 4 inches of rain have
fallen. Additional rainfall amounts up 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 indicated.
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...
Clifton Forge, Hot Springs, Warm Springs, Millboro, Iron Gate,
Douthat State Park and Ingalls Field.
This includes the following streams and drainages...
Claylick Run, Blue Suck Branch, Cedar Creek, Cabin Creek,
Cowpasture River, Chimney Run and Back Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
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 3810 7986 3810 7980 3801 7954 3798 7956
3793 7961 3787 7965 3787 7964 3786 7962
3783 7963 3781 7965 3776 7967 3780 7983
3787 7999 3793 8000
FLASH FLOOD...RADAR INDICATED
$$
as617
WGUS71 KRNK 280625
FFSRNK
Flash Flood Statement
National Weather Service Blacksburg VA
225 AM EDT Fri Aug 28 2026
VAC005-017-280635-
/O.EXP.KRNK.FF.W.0036.000000T0000Z-260828T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Alleghany VA-Bath VA-
225 AM EDT Fri Aug 28 2026
...FLASH FLOOD WARNING WILL EXPIRE AT 230 AM EDT EARLY THIS MORNING
FOR NORTHEASTERN ALLEGHANY VA AND SOUTHERN BATH COUNTIES...
The heavy rain has ended. Flood waters have receded. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
&&
LAT...LON 3810 7986 3810 7980 3801 7954 3798 7956
3793 7961 3787 7965 3787 7964 3786 7962
3783 7963 3781 7965 3776 7967 3780 7983
3787 7999 3793 8000
$$
asWhat 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 Aug 27, 7:44 PM EDT, 48 minutes earlier. Its key messages:
- 1) Potential strong storms Friday. Damaging winds and localized flooding possible. 2) Heat builds into next week.
Area forecast discussion, Aug 27, 7:44 PM EDT, 48 minutes before
Area Forecast Discussion National Weather Service Blacksburg VA 744 PM EDT Thu Aug 27 2026 .WHAT HAS CHANGED... Storms this evening and again Friday may pose a severe wind threat, along with very heavy rainfall. Aviaton updated. && .KEY MESSAGES... 1) Potential strong storms Friday. Damaging winds and localized flooding possible. 2) Heat builds into next week. && .DISCUSSION... KEY MESSAGE 1: Potential strong storms Friday. Damaging winds and localized flooding possible. Storms have already begun to develop west of the Blue Ridge and coverage of storms will likely increase through this evening in response to a subtle wave and a slow-moving frontal boundary within the region. Moderate surface heating and increasing dew points into the upper 60s has resulted in MLCAPE/SBCAPE now approaching 1500 J/kg. Further destabilization throughout the remainder of the afternoon will allow storms to increase in coverage across the mountains. PWAT values are not particularly high (around 1.50" or less) but nearly stationary storms will still pose a localized flooding threat through this evening. Shear remains weak, so organized convection remains a lower risk, but multicell clusters and cell mergers later this afternoon/evening may introduce a damaging wind threat for a few hours. Friday, the front slows and stalls somewhere across the VA/NC Piedmont/Foothills, as several vorts track from the TN Valley to the east coast. Looks like better severe threat appears to stay east of the mountains, with more instability but will depend on cloud coverage early in the day. If sunshine is plentiful expect moderate to potentially strong instability east/southeast of the front where upper 60s to low 70s dewpoints will be present. Lapse rates will be quite weak, but most guidance shows temperatures warming into the low to mid 80s which should provide pockets of moderate to strong instability. Any storms that can take advantage of the a stronger flow aloft may be longer- lived and capable of some damaging wind gusts. KEY MESSAGE 2: Heat builds into next week. A strong upper ridge begins to build by early next week. Above normal temperatures appear likely as the ridge remains in place through at least the middle of next week. As such with strong ridging, rain/storm chances will become limited. && .AVIATION /00Z FRIDAY THROUGH TUESDAY/... DAN/BCB may continue to see -SHRA with an occasional strike of lightning. BLF and LWB may see a shower, but not enough confidence to include in the TAFs. Any storms could bring lower vsbys and cigs and gusty winds. Tonight, models showing more potential for fog but still depends on lingering cloud cover and if it rains at/near the terminal. Could have IFR or worse vsbys at LWB/BCB, then maybe MVFR at BLF/LYH/DAN. However, confidence in this remains rather low as of this update. A cold front moves through the area overnight and into early tomorrow morning before stalling somewhere in east VA. PoPs have increased for ROA, LYH, and DAN tomorrow afternoon and evening where convergence will be highest along that part of the front. Have included -TSRA for these terminals. EXTENDED AVIATION OUTLOOK... The weekend into early next week appears drier with warmer temperatures. VFR expected outside any late night fog. && .RNK WATCHES/WARNINGS/ADVISORIES... VA...None. NC...None. WV...None. && DISCUSSION...BMG/SH/WP AVIATION...BMG/SH/WP
Hazardous weather outlook, Aug 27, 5:05 AM EDT, 15 hours 27 minutes before
Hazardous Weather Outlook National Weather Service Blacksburg VA 505 AM EDT Thu Aug 27 2026 NCZ001>006-018>020-VAZ012>017-022>024-032>035-043>047-058-059-280915- Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes- Yadkin-Wythe-Pulaski-Montgomery-Grayson-Carroll-Floyd-Roanoke- Botetourt-Rockbridge-Patrick-Franklin-Bedford-Amherst-Henry- Pittsylvania-Campbell-Appomattox-Buckingham-Halifax-Charlotte- 505 AM EDT Thu Aug 27 2026 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...Today and tonight. A few severe thunderstorms capable of producing damaging wind gusts and large hail are possible this afternoon and evening. Localized flooding from torrential rain is also possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Isolated strong to severe storms are possible Friday. Damaging winds and localized flooding are the main threats. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. VAZ007-009>011-018>020-WVZ042>044-507-508-280915- Tazewell-Smyth-Bland-Giles-Craig-Alleghany VA-Bath-Mercer-Summers- Monroe-Eastern Greenbrier-Western Greenbrier- 505 AM EDT Thu Aug 27 2026 This Hazardous Weather Outlook is for southwest Virginia, west central Virginia and southeast West Virginia. .DAY ONE...Today and tonight. A few severe thunderstorms capable of producing damaging wind gusts and large hail are possible this afternoon and evening. Localized flooding from torrential rain is also possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. There is a low probability for widespread hazardous weather. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed.
In the hours before
Special weather statement, Aug 27, 7:45 PM EDT, 47 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
745 PM EDT Thu Aug 27 2026
VAZ024-035-280030-
Amherst VA-Rockbridge VA-
745 PM EDT Thu Aug 27 2026
...A STRONG THUNDERSTORM WILL IMPACT
NORTHEASTERN ROCKBRIDGE AND NORTHWESTERN AMHERST COUNTIES...THE CITY
OF BUENA VISTA AND THE CITY OF LEXINGTON THROUGH 830 PM EDT...
At 745 PM EDT, Doppler radar was tracking a strong thunderstorm over
Rockbridge Baths, moving southeast at 15 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Lexington...
Buena Vista...
Rockbridge Baths...
Cornwall...
Alto...
Fairfield...
and Oronoco.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3795 7924 3792 7919 3788 7915 3785 7915
3782 7916 3780 7917 3781 7915 3768 7926
3777 7948 3789 7949 3796 7946 3796 7932
TIME...MOT...LOC 2345Z 302DEG 12KT 3788 7939
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
EBThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 10:20 PM EDT | Special Weather Statement | RNK | Appomattox | 25 min |
| Aug 27, 10:58 PM EDT | Areal Flood Advisory | RNK | Giles | 19 min |
| Aug 27, 11:06 PM EDT | Areal Flood Advisory | RNK | Botetourt, Rockbridge | 3 hr |
| Aug 27, 11:15 PM EDT | Areal Flood Advisory | RNK | Grayson | 2 hr |
| Aug 27, 11:17 PM EDT | Flash Flood Warning | RNK | Giles | 2 hr |
| Aug 27, 11:22 PM EDT | Special Weather Statement | RNK | Alleghany, City of Covington | 38 min |
| Aug 27, 11:32 PM EDT | Special Weather Statement | RNK | Botetourt | 28 min |
| Aug 28, 12:17 AM EDT | Areal Flood Advisory | RNK | Botetourt, Roanoke, City of Roanoke | 3 hr |
Nearby
Flash Flood Warnings in 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.