Alert archive / Virginia / Flash Flood Warnings in 2018
Flash Flood Warning 31, NWS Blacksburg, VA
NWS Blacksburg, VA issued this flash flood warning at May 27, 2018, 3:53 PM EDT for Roanoke County, City of Roanoke, City of Salem, Virginia. It was in force for 6 hr. 3 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
- May 27, 2018, 3:53 PM EDT (19:53 UTC)
- Expired
- May 27, 2018, 9:45 PM EDT
- In force
- 6 hr
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Flood severity
- None
Counties City of Roanoke, VA, City of Salem, VA, Roanoke County, VA
The radar
The Roanoke radar (KFCX), 39 km from the middle of the area, began a volume at 19:55 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 |
|---|---|---|---|
| May 27, 4:37 PM EDT | FLASH FLOOD | 4 Sw Roanoke, VA | GARST MILL PARK COMPLETELY INUNDATED BY MUD LICK CREEK |
| May 27, 5:00 PM EDT | FLASH FLOOD | Cave Spring, VA | MULTIPLE REPORTS OF FLASH FLOODING, ROADS CLOSED OR WASHED AWAY, HOUSES FLOODED, ECT. MOST REPORTS OCCURRED BETWEEN AT 330 PM THROUGH 600 PM. |
| May 27, 5:17 PM EDT | FLASH FLOOD | 3 Sw Roanoke, VA | EXTENSIVE FLOODING ALONG GRANDIN AND GARST MILL ROADS. MANY HOUSES FLOODED. |
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 3 storm reports to this flash flood warning; the first came 44 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, 7.9 hours before the alert went out and 44 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
- 64 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 898 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
222
WGUS51 KRNK 271953
FFWRNK
VAC161-770-775-280145-
/O.NEW.KRNK.FF.W.0031.180527T1953Z-180528T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service BLACKSBURG VA
353 PM EDT SUN MAY 27 2018
The National Weather Service in BLACKSBURG has issued a
* Flash Flood Warning for...
Central Roanoke County in west central Virginia...
The City of Salem in west central Virginia...
The City of Roanoke in west central Virginia...
* Until 945 PM EDT
* At 352 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Over two inches of rain have
already fallen in some areas. Flash flooding is expected to begin
shortly.
* Some locations that will experience flooding include...
Roanoke...
Salem...
Vinton...
Hollins...
Cave Spring...
and Poages Mill.
Additional rainfall amounts of over two inches are possible in the
warned area.
This includes The following Locations The Salem Fairgrounds and
Roanoke Regional Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 Twitter.
&&
LAT...LON 3735 7992 3722 7988 3717 8013 3728 8014
3736 7994
$$
JR6 follow-up statements
314
WGUS71 KRNK 272030
FFSRNK
Flash Flood Statement
National Weather Service BLACKSBURG VA
430 PM EDT SUN MAY 27 2018
VAC161-770-775-280145-
/O.CON.KRNK.FF.W.0031.000000T0000Z-180528T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Roanoke VA-City of Salem VA-City of Roanoke VA-
430 PM EDT SUN MAY 27 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR
CENTRAL ROANOKE ...THE CITY OF SALEM AND THE CITY OF ROANOKE...
At 425 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. 3 or more inches of rain have fallen in
the past two hours or so. Flash flooding has been reported
within the warned area with cars and road flooded.
Some locations that will experience flooding include...
Roanoke...
Salem...
Vinton...
Hollins...
and Poages Mill.
This includes the Cave Spring where the heaviest rain has fallen.
Additional rainfall amounts of 1 or more inches are possible in the
warned area although the heaviest rain is shifting slowly south.
Flooding in the Mudlick Creek basin is expected to especially severe.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
When it is safe to do so, please send your reports of flooding,
including mudslides or flooded roads, to the National Weather Service
by calling toll free at 1...8 6 6...2 1 5...4 3 2 4. Reports and
pictures can also be shared on the National Weather Service
Blacksburg Facebook page and on Twitter.
&&
LAT...LON 3735 7992 3722 7988 3717 8013 3728 8014
3736 7994
$$
PC105
WGUS71 KRNK 272102
FFSRNK
Flash Flood Statement
National Weather Service BLACKSBURG VA
502 PM EDT SUN MAY 27 2018
VAC161-770-775-280145-
/O.CON.KRNK.FF.W.0031.000000T0000Z-180528T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Roanoke VA-City of Salem VA-City of Roanoke VA-
502 PM EDT SUN MAY 27 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR
CENTRAL ROANOKE ...THE CITY OF SALEM AND THE CITY OF ROANOKE...
At 455 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain over the warned area. Doppler
radar estimates rainfall of up to 6 inches in the past 3 hours have
fallen in the Cave Spring area of Roanoke County.
Numerous reports of flash flooding has been received especially in
the Cave Spring area.
Mudlick Creek continues to be of serious concern as the main runoff
is into that stream basin. Expect very large rises on this stream
and dangerous flash flooding.
Some locations that will experience flooding include...
Cave Spring...Roanoke... Salem...Vinton... Hollins...
and Poages Mill.
Additional rainfall amounts of 1 inch or more are possible in the
warned area.
This includes the following streams and drainages...
Paint Bank Branch...
Gish Branch...
Carvin Creek...
Horners Branch...
and Murray Run.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
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 Twitter.
&&
LAT...LON 3735 7992 3722 7988 3717 8013 3728 8014
3736 7994
$$
PC083
WGUS71 KRNK 272158
FFSRNK
Flash Flood Statement
National Weather Service BLACKSBURG VA
558 PM EDT SUN MAY 27 2018
VAC161-770-775-280145-
/O.CON.KRNK.FF.W.0031.000000T0000Z-180528T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Roanoke VA-City of Salem VA-City of Roanoke VA-
558 PM EDT SUN MAY 27 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR
CENTRAL ROANOKE ...THE CITY OF SALEM AND THE CITY OF ROANOKE...
At 545 PM EDT, emergency management and spotters reported flash
flooding in numerous locations in the Cave Spring area of Roanoke
County. The maximum radar-estimated rainfall was 5 to 6 inches in
about a 3 hour period from 2 to 5 PM falling mainly over the upper
portions of Mudlick Creek basin. Flash flooding is already occurring
but rainfall rates have diminished considerably and should continue
to lessen.
Some locations that will experience flooding include...
Cave Spring...
Roanoke...
Salem...
Vinton...
Hollins...
and Poages Mill.
The worst of the rain is over but additional rainfall amounts of up
to 0.25 inches are possible in the warned area and flooding will
persist as the runoff continues.
This includes the following streams and drainages...
Paint Bank Branch...
Gish Branch...
Carvin Creek...
Horners Branch...
and Murray Run.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
When it is safe to do so, please send your reports of flooding,
including mudslides or flooded roads, to the National Weather Service
by calling toll free at 1...8 6 6...2 1 5...4 3 2 4. Reports and
pictures can also be shared on the National Weather Service
Blacksburg Facebook page and on Twitter.
&&
LAT...LON 3735 7992 3722 7988 3717 8013 3728 8014
3736 7994
$$
PC525
WGUS71 KRNK 272328
FFSRNK
Flash Flood Statement
National Weather Service BLACKSBURG VA
728 PM EDT SUN MAY 27 2018
VAC161-770-775-280145-
/O.CON.KRNK.FF.W.0031.000000T0000Z-180528T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Roanoke VA-City of Salem VA-City of Roanoke VA-
728 PM EDT SUN MAY 27 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR
CENTRAL ROANOKE ...THE CITY OF SALEM AND THE CITY OF ROANOKE...
At 718 PM EDT, numerous reports of flash flooding in the Cave Spring
area of Roanoke County area were received earlier this evening with
ongoing issues including several evacuations mainly along Mudlick
Creek in Roanoke City.
NWS Doppler radar estimated that 4 to 6 inches of rain fell in about
3 hours and a rain gage report of 4.69 inches near Bent Mountain was
received.
Some locations that will experience flooding include...
Roanoke...
Salem...
Vinton...
Hollins...
and Poages Mill.
Very little additional rainfall is expected this evening but runoff
will continue for several more hours along Mudlick Creek. Hydrologic
models indicate that the rate of runoff into the creek is declining.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
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 Twitter.
&&
LAT...LON 3735 7992 3722 7988 3717 8013 3728 8014
3736 7994
$$
PC852
WGUS71 KRNK 280042
FFSRNK
Flash Flood Statement
National Weather Service BLACKSBURG VA
842 PM EDT SUN MAY 27 2018
VAC161-770-775-280145-
/O.CON.KRNK.FF.W.0031.000000T0000Z-180528T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Roanoke VA-City of Salem VA-City of Roanoke VA-
842 PM EDT SUN MAY 27 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR
CENTRAL ROANOKE ...THE CITY OF SALEM AND THE CITY OF ROANOKE...
At 835 PM EDT, numerous reports of flash flooding in the Cave Spring
area of Roanoke County area were received earlier this evening with
ongoing issues including several evacuations mainly along Mudlick
Creek in Roanoke City.
NWS Doppler radar estimated that 4 to 6 inches of rain fell in about
3 hours and a rain gage report of 4.69 inches near Bent Mountain was
received.
Some locations that will experience flooding include...
Roanoke...
Salem...
Vinton...
Hollins...
and Poages Mill.
Doppler radar is indicating that an additional round of showers and
thunderstorms are developing in and around the warned area. These
storms could produce one to two more inches of rain in the next
hour.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
When it is safe to do so, please send your reports of flooding,
including mudslides or flooded roads, to the National Weather Service
by calling toll free at 1...8 6 6...2 1 5...4 3 2 4. Reports and
pictures can also be shared on the National Weather Service
Blacksburg Facebook page and on Twitter.
&&
LAT...LON 3735 7992 3722 7988 3717 8013 3728 8014
3736 7994
$$
JR317
WGUS71 KRNK 280155
FFSRNK
Flash Flood Statement
National Weather Service BLACKSBURG VA
955 PM EDT SUN MAY 27 2018
VAC161-770-775-280203-
/O.EXP.KRNK.FF.W.0031.000000T0000Z-180528T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Roanoke VA-City of Salem VA-City of Roanoke VA-
955 PM EDT SUN MAY 27 2018
...THE FLASH FLOOD WARNING FOR
CENTRAL ROANOKE ...THE CITY OF SALEM AND THE CITY OF ROANOKE HAS
EXPIRED...
The heavy rain has ended. Portions of this warning have been
replaced by an areal flood warning for the next couple of hours.
Please continue to heed any remaining road closures.
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 Twitter.
LAT...LON 3735 7992 3722 7988 3717 8013 3728 8014
3736 7994
$$
JRWhat 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 May 27, 3:40 PM EDT, 13 minutes earlier.
Area forecast discussion, May 27, 3:40 PM EDT, 13 minutes before
Area Forecast Discussion National Weather Service Blacksburg VA 340 PM EDT Sun May 27 2018 .SYNOPSIS... High pressure centered offshore will maintain a moist southerly flow of air into the region for the next several days. Subtropical Storm Alberto moving into the Gulf of Mexico this weekend will move ashore and into the lower Mississippi Valley early in the week. Tropical moisture will stream north into the region making for very rain efficient showers and thunderstorms. && .NEAR TERM /THROUGH MONDAY/... As of 340 PM EDT Sunday... Scattered showers and thunderstorms have formed in the moist unstable air across our region with the better coverage across the higher terrain and along the Blue Ridge. Ample insolation has allowed MLCAPE values to climb to around 1500 to 3000 J/KG. The combination of upper trough over the northern Mid-Atlantic and tropical moisture streaming north from the Gulf of Mexico has resulted in a convergence axis along or north of our CWA border. With healthy PWATS, these storms will be very rain efficient rain producers. The HRRR and HiresW-ARW-East indicated that the greatest convection concentration will occur cross the northern half of our forecast area. The NAM and RAP generates precipitation across the entire forecast area. The GFS and ECMWF showers widespread storms with the heaviest north of our forecast area. The excessive rain fall had marginal potential across the entire forecast area with slight chance to our northeast across Washington area. We will need to watch for flooding issues across entire forecast area with deeper convection or training. The good news is that the storm motion is faster today around 15 knots compared to yesterday. One weak spots will be Tazewell county where some rain gages reporting 2-3 inch amounts Saturday. Attm will hold off on a Flash Flood Watch. Prefer to see where convergence boundaries will line-up and target those areas of high confidence as opposed to blanketing a larger piece of real estate. Low temperatures tonight will range from the upper 50s in the mountains to the mid 60s in the piedmont. Refer to the latest advisories from NHC on Alberto for track and its movement. Alberto comes ashore Monday morning and continues moving northward into southern Alabama by Monday evening. The flooding potential for Monday will depend on how much rainfall is accumulated from several days of locally heavy tropical rainfall and where the deeper convection forms. The greatest chances for showers and thunderstorms Monday will occur across southern portions of the forecast area. Decided to mention the rain could be heavy at times in the south. The Day Two excessive rainfall showed a sharp gradient with a slight chance to our south across North Carolina. Both the GFS and ECMWF showed richer moisture try to push into the southern edge of our forecast area before translating east to the coast. High temperatures on Monday will vary for around 70 degrees in the mountains to the upper 70s in the east. && .SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY NIGHT/... As of 230 PM EDT Sunday... NHC forecasts bring Alberto ashore Monday morning and continues the center on a NNW track into southern Alabama by Monday evening while weakening the system to a tropical depression by Tuesday morning over north central Alabama. Forward speed then increases as the NNW track continues with the depression in southern Indiana by Wednesday morning and Michigan by Thursday morning. Our forecast area will remain in deep southerly flow through this entire period with extremely high moisture for late May. The 12z/27 RNK sounding PWAT of 1.42 inches is near 'all-time' high for the date (1995-2014 SPC climatology) and chances are very good that this type of moisture remains over the region for next few days and beyond. As mentioned in previous discussions the forecast NAEFS anomalies for PWAT are 2 to 2.5 standard deviations above normal through much of the week. Bottom line is any showers that develop are will be efficient rain producers and storms that lingers over a particular location or small basin more than about 1-2 hours are liable to produce minor flooding and 2-3 hours could initiate flash flooding. Day 3 Excessive rainfall outlook from WPC shows Slight Risk (10-20 percent chance)for exceeding flash flood guidance 12z Tuesday through 12z Wednesday. This does not provide much confidence in issuing a Flash Flood Watch given the lack of focus and the shotgun pattern of flash flood guidance (FFG) in place across our region. 3-hour FFG ranges generally from 1.5 to 3.0 inches with the lower guidance mainly in the mountains. Will hold off on a Flood/Flash Watch as the pattern is too diffuse in terms of timing and location. A short-fused Watch targeted to developing organized convection may make more sense than what could be a 3-day (or longer) Watch. As Alberto lifts into the Tennessee Valley late Tuesday into Wednesday a Marginal Risk for Severe will exist with the possibility for isolated tornadoes in the northeast quadrant of the weakening system as well. && .LONG TERM /THURSDAY THROUGH SUNDAY/... As of 300 PM EDT Sunday... A generally wet pattern is expected to continue late week into next weekend as the remains of Alberto lift northward into the northern Great Lakes. But then the forecast becomes interesting as 12z/27 GFS shows intense upper low over the western North Atlantic blocked by ridging south of Greenland. This forces the upper low over the Great Lakes back to the southeast with a broad area of low pressure over the Mid-Atlantic that deepens with time over VA/NC area providing continued chances for rainfall. The 00z/27 ECMWF shows similar longwave pattern with the Greenland block but develops surface low pressure somewhat further north and east, while 12z/27 CMC closer to GFS. Obviously pattern details cannot be descried with any real confidence at this range but the pattern certainly fits the definition of 'unsettled' through the extended period. Used mainly Super blend for the grids during this time frame. && .AVIATION /20Z SUNDAY THROUGH FRIDAY/... As of 150 PM EDT Sunday... Scattered showers and thunderstorms developing in the moist unstable air especially over the higher terrain this afternoon. These storms will be very rain efficient due to the high moisture content of the air. Areas of MVFR cigs will continue this afternoon into tonight with pockets IFR/LIFR in convection and low clouds. Areas of fog and low clouds will develop overnight into Monday morning. Morning fog and low clouds will mix out or dissipate by mid morning leaving MVFR/VFR conditions into Monday afternoon. Outside of thunderstorms , winds will generally be light and variable or calm through the forecast period. Medium confidence in ceilings, visibilities and winds during the taf period. .Extended Aviation Discussion... Wet pattern anticipated through the upcoming week with periods of at least diurnally driven sub-VFR conditions associated with deep convection. Moist low level southerly winds will also favor lower layers of cloudiness at night, especially along the spine of the Appalachians with potential for both MVFR Cigs and early morning MVFR visibilities from mist/haze. The tropical system over the Gulf of Mexico may begin to impact the region mid-week. The unsettled weather with showers and thunderstorms may continue into the end of the week. && .HYDROLOGY... As of 315 PM Sunday... Significant focus in hydro concerns as discussed in portion of the Near, Short and Long term discussions above. Alberto and associated effects will be with us through the upcoming week in one form or another. The question of Flood or Flash Flood Watches will be with us during much of this time period as mentioned earlier but the notion of holding onto what could be a very long-fused Watch seems almost counter to producing real awareness of any flood threat. There may be opportunities for more short-fused Flash Flood Watches tied to a more discernible threat such as banded features or persistent clusters of storms. That said, the ground is fairly saturated in many places but as noted above very erratic coverage. River flooding cannot be discounted especially on smaller fast- reacting streams such as the upper Roanoke, Watauga, or even something like Mason Creek. All basins will have to be monitored closely. The latest MMEFS ensembles, mostly from 00z/27 or 06z/27 are painting some a somewhat less robust response on the bigger rivers than the previous set of runs with minor to moderate flooding generally in the 30 percent or less chance in most large river basins. The experience with MMEFS has been that is tends to overdo the probabilities of reaching high stages at these extended forecast time periods. Still, the Dan River basin once again under the highest threat for flooding but that would be a late week time frame. && .EQUIPMENT... NOAA Weather Radio, All Hazards, WZ2500 at Wytheville, VA, broadcasting on a frequency of 162.45 mHz has been fixed. && .RNK WATCHES/WARNINGS/ADVISORIES... VA...None. NC...None. WV...None. && SYNOPSIS...KK/PM NEAR TERM...KK SHORT TERM...PC LONG TERM...PC AVIATION...KK/PM HYDROLOGY...PC EQUIPMENT...DS/KK
Hazardous weather outlook, May 27, 3:48 PM EDT, 5 minutes before
Hazardous Weather Outlook National Weather Service Blacksburg VA 348 PM EDT Sun May 27 2018 NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059- WVZ042>044-507-508-282000- 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- 348 PM EDT Sun May 27 2018 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. Localized excessive rainfall is possible this afternoon and evening. Rainfall which exceeds 2 inches in an hour may cause flooding. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Showers and thunderstorms will be very rain efficient this week with the potential for small stream and poor drainage flooding. In addition, the tropical system emanating from the Eastern Gulf of Mexico may have impacts with respect to rainfall amounts and potential flooding Monday through Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, May 27, 2:31 PM EDT, 1 hour 22 minutes before
Special Weather Statement National Weather Service BLACKSBURG VA 231 PM EDT SUN MAY 27 2018 VAZ023-034-271900- Botetourt-Bedford- 231 PM EDT SUN MAY 27 2018 ...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN BEDFORD AND SOUTHEASTERN BOTETOURT COUNTIES... Until 300 PM EDT At 230 PM EDT, a strong thunderstorm was located near Montvale, moving east at 20 mph. Winds in excess of 40 mph and dime size hail are possible with this storm. Locations impacted include... Montvale... Peaks Of Otter Recreation Area... Peaks Of Otter Summit... and Blue Ridge. 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. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. LAT...LON 3736 7980 3744 7982 3754 7958 3737 7956 TIME...MOT...LOC 1830Z 254DEG 18KT 3743 7975 DS
Special weather statement, May 27, 2:43 PM EDT, 1 hour 10 minutes before
Special Weather Statement National Weather Service BLACKSBURG VA 243 PM EDT SUN MAY 27 2018 VAZ034-271915- Bedford- 243 PM EDT SUN MAY 27 2018 ...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL BEDFORD COUNTY... Until 315 PM EDT At 242 PM EDT, a strong thunderstorm was located near Chamblissburg, moving northeast at 15 mph. Winds in excess of 30 mph and pea size hail are possible with this storm. Locations impacted include... Chamblissburg... and Thaxton. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. LAT...LON 3721 7962 3725 7973 3736 7965 3729 7950 TIME...MOT...LOC 1842Z 225DEG 11KT 3725 7966 DS
Special weather statement, May 27, 2:53 PM EDT, 1 hour before
Special Weather Statement National Weather Service BLACKSBURG VA 253 PM EDT SUN MAY 27 2018 VAZ022-271930- Roanoke- 253 PM EDT SUN MAY 27 2018 ...A STRONG THUNDERSTORM WILL AFFECT CENTRAL ROANOKE ...THE SOUTHEASTERN CITY OF SALEM AND THE SOUTHWESTERN CITY OF ROANOKE... Until 330 PM EDT At 253 PM EDT, a strong thunderstorm was located over Poages Mill, moving northeast at 5 mph. Winds in excess of 30 mph and pea size hail are possible with this storm. Locations impacted include... Roanoke... Salem... Poages Mill... and Cave Spring. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. LAT...LON 3720 8005 3723 8007 3728 8002 3722 7996 TIME...MOT...LOC 1853Z 240DEG 6KT 3723 8005 DS
Special weather statement, May 27, 3:28 PM EDT, 25 minutes before
Special Weather Statement National Weather Service BLACKSBURG VA 328 PM EDT SUN MAY 27 2018 VAZ013-014-272000- Pulaski-Montgomery- 328 PM EDT SUN MAY 27 2018 ...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN PULASKI AND WEST CENTRAL MONTGOMERY COUNTIES AND THE NORTHEASTERN CITY OF RADFORD... Until 400 PM EDT At 328 PM EDT, a strong thunderstorm was located over Fairlawn, moving northeast at 15 mph. Winds in excess of 30 mph and pea size hail are possible with this storm. Locations impacted include... Radford... Prices Fork... Fairlawn... Walton... and Merrimac. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. LAT...LON 3712 8056 3717 8062 3723 8050 3719 8043 TIME...MOT...LOC 1928Z 234DEG 12KT 3715 8056 DS
Special weather statement, May 27, 3:34 PM EDT, 19 minutes before
Special Weather Statement National Weather Service BLACKSBURG VA 334 PM EDT SUN MAY 27 2018 VAZ014-272000- Montgomery- 334 PM EDT SUN MAY 27 2018 ...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL MONTGOMERY COUNTY... Until 400 PM EDT At 332 PM EDT, a strong thunderstorm was developing near Shawsville, moving northeast at 10 mph. Winds in excess of 40 mph and dime size hail are possible with this storm as it continues to intensify. This storm will remain over mainly rural areas of east central Montgomery County. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. LAT...LON 3717 8033 3719 8036 3725 8029 3720 8024 TIME...MOT...LOC 1932Z 237DEG 7KT 3719 8034 DS
Special weather statement, May 27, 3:48 PM EDT, 5 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
348 PM EDT SUN MAY 27 2018
VAZ022-272015-
Roanoke-
348 PM EDT SUN MAY 27 2018
...A STRONG THUNDERSTORM WILL AFFECT CENTRAL ROANOKE ...THE CITY OF
SALEM AND THE CITY OF ROANOKE...
Until 415 PM EDT
At 347 PM EDT, a strong thunderstorm was located over Poages Mill,
moving northeast at 15 mph.
Winds in excess of 30 mph and pea size hail are possible with this
storm.
Locations impacted include...
Roanoke...
Salem...
Poages Mill...
Cave Spring...
and Hollins.
This includes The following Location The Salem Fairgrounds.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 3719 8006 3721 8011 3726 8006 3729 8011
3732 8004 3733 7997 3731 7987 3728 7992
3725 7990 3721 7995 3723 7998
TIME...MOT...LOC 1947Z 220DEG 12KT 3722 8007
DSThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 8:25 PM EDT | Special Weather Statement | RNK | Halifax | 35 min |
| May 26, 8:59 PM EDT | Special Weather Statement | RNK | Charlotte | 31 min |
| May 26, 11:18 PM EDT | Special Weather Statement | RNK | Halifax | 57 min |
| May 27, 12:15 AM EDT | Areal Flood Advisory | RNK | Halifax | 75 min |
| May 27, 1:42 PM EDT | Areal Flood Advisory | RNK | Botetourt, Craig | 6 hr |
| May 27, 2:31 PM EDT | Special Weather Statement | RNK | Botetourt | 29 min |
| May 27, 2:43 PM EDT | Special Weather Statement | RNK | Bedford | 32 min |
| May 27, 2:53 PM EDT | Special Weather Statement | RNK | City of Salem | 37 min |
| May 27, 3:28 PM EDT | Areal Flood Advisory | RNK | Roanoke, City of Roanoke, City of Salem | 3 hr |
| May 27, 3:28 PM EDT | Special Weather Statement | RNK | City of Radford | 32 min |
| May 27, 3:34 PM EDT | Special Weather Statement | RNK | Montgomery | 26 min |
| May 27, 3:48 PM EDT | Special Weather Statement | RNK | City of Roanoke, City of Salem | 27 min |
| May 27, 4:08 PM EDT | Special Weather Statement | RNK | Smyth | 37 min |
| May 27, 4:18 PM EDT | Special Weather Statement | RNK | City of Roanoke | 27 min |
| May 27, 6:15 PM EDT | Special Weather Statement | RNK | Appomattox, Buckingham | 60 min |
| May 27, 7:20 PM EDT | Areal Flood Advisory | RNK | Amherst, Appomattox, Buckingham, City of Lynchburg | 3 hr |
Nearby
Flash Flood Warnings in Virginia, 2018Every flash flood warning in 2018
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.