Tuesday, September 17, 2019

Early Autumn 2019_High Knob Massif


High Knob Naturalist Rally 2019
September 28, 2019

17 September 2019
Devil Fork Gorge of High Knob Massif
Majestic Green Color of Devil's Bathtub
Photograph by Wayne Browning - © All Rights Reserved

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17 September 2019
Upper Tennessee River Basin
Devil Fork Gorge of High Knob Massif
Photograph by Wayne Browning - © All Rights Reserved

Following a very wet year, September 2019 is on pace 
to become the driest on record with only 0.22" of rain at Big Cherry Dam during September 1-17.

Monthly Total Precipitation
Big Cherry Lake Dam
(Elevation 3139 feet)

January
6.14"

February
12.50"

March
5.93"

April
6.64"

May
6.75"

June
10.68"

July
10.77"

August
4.15"

September 1-17
0.22"

Summer 2019
(Jun 1-Aug 31)
25.60"

*2019 Total: 63.78" (M)
 (January 1 to September 17 Period)

(M): Some missing moisture in undercatch and frozen precipitation, with partial corrections applied for the 24.4 meter (80 feet) tall dam structure where rain gauges are located.

17 September 2019
Devil Fork Gorge of High Knob Massif
Photograph by Wayne Browning - © All Rights Reserved

17 September 2019
Autumn Color In Straight Fork Gorge
Photograph by Wayne Browning - © All Rights Reserved

17 September 2019
Looking Toward Big Cherry Basin
Autumn Color In Straight Fork Gorge
Photograph by Wayne Browning - © All Rights Reserved


High Knob Lake
Elevation 1074 Meters ( 3523 feet )

September 1-17 2019
Average Daily Maximum: 76.1 degrees
Average Daily Minimum: 56.3 degrees
MEAN: 66.2 degrees
Highest Temperature: 82 degrees
Lowest Temperature: 53 degrees

*University Of Virginia's College At Wise Research Station,
National Weather Service calibrated temperature sensor,
( Data Period: November 19, 2016 to Present ).

Tuesday, August 20, 2019

Late Summer 2019_High Knob Massif

August 16, 2019
High Knob Massif
Looking Across Head of Big Cherry Lake Basin
Photograph by Wayne Browning - © All Rights Reserved

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August 16, 2019
High Knob Massif
Looking Down Middle of Big Cherry Lake Basin
Photograph by Wayne Browning - © All Rights Reserved

Downpours of rains in mid-August have broken a stretch of mostly dry conditions during the first half of August 2019, in radical contrast to the wetness of June-July.

Monthly Total Precipitation
Big Cherry Lake Dam
(Elevation 3139 feet)

January
6.14"

February
12.50"

March
5.93"

April
6.64"

May
6.75"

June
10.68"

July
10.77"

August
4.15"

Summer 2019
(Jun 1-Aug 31)
25.60"

*2019 Total: 63.56" (M)
 (January 1 to August 31 Period)

12-Month Total: 91.20" (M)

(M): Some missing moisture in undercatch and frozen precipitation, with partial corrections applied for the 24.4 meter (80 feet) tall dam structure where rain gauges are located.

August 16, 2019
High Knob Massif
Looking Across High Knob Lake Basin
Photograph by Wayne Browning - © All Rights Reserved

Temperatures_Summer 2019

Abundant summer rainfall and clouds have kept air temperatures significantly cooler in the high country of the High Knob Massif, with latent heat fluxes related to the evapotranspiration of water ruling the surface energy budget.  A review of mesonet data from the University Of Virginia's College At Wise Undergraduate Research Program illustrates this very well.

High Knob Lake
Elevation 1074 Meters ( 3523 feet )

June 2019
Average Daily Maximum: 68.4 degrees
Average Daily Minimum: 54.3 degrees
MEAN: 61.4 degrees
Highest Temperature: 78 degrees
Lowest Temperature: 39 degrees

July 2019
Average Daily Maximum: 73.2 degrees
Average Daily Minimum: 59.7 degrees
MEAN: 66.4 degrees
Highest Temperature: 79 degrees
Lowest Temperature: 49 degrees

August 2019
Average Daily Maximum: 73.2 degrees
Average Daily Minimum: 57.6 degrees
MEAN: 65.4 degrees
Highest Temperature: 79 degrees
Lowest Temperature: 49 degrees

*University Of Virginia's College At Wise Research Station,
National Weather Service calibrated temperature sensor,
( Data Period: November 19, 2016 to Present ).

Summer 2019
Average Daily Maximum: 71.6 degrees
Average Daily Minimum: 57.2 degrees
MEAN: 64.4 degrees
Highest Temperature: 79 degrees
Lowest Temperature: 39 degrees

August 20, 2019
Towering Cumulus Above High Knob Massif
Photograph by Wayne Browning - © All Rights Reserved

Eagle Knob Peak
Elevation 1276 Meters ( 4188 feet )

June 2019
Average Daily Maximum: 65.6 degrees
Average Daily Minimum: 55.1 degrees
MEAN: 60.4 degrees
Highest Temperature: 74 degrees
Lowest Temperature: 43 degrees

July 2019
Average Daily Maximum: 70.3 degrees
Average Daily Minimum: 61.4 degrees
MEAN: 65.8 degrees
Highest Temperature: 76 degrees
Lowest Temperature: 51 degrees

August 2019
Average Daily Maximum: 70.0 degrees
Average Daily Minimum: 59.9 degrees
MEAN: 65.0 degrees
Highest Temperature: 77 degrees
Lowest Temperature: 51 degrees

*University Of Virginia's College At Wise Research Station,
National Weather Service calibrated temperature sensor,
( Data Period: November 12, 2016 to Present ).

Summer 2019
Average Daily Maximum: 68.6 degrees
Average Daily Minimum: 58.8 degrees
MEAN: 63.7 degrees
Highest Temperature: 77 degrees
Lowest Temperature: 43 degrees

In the head of Big Cherry Lake wetland valleys, 
the highest summer temperatures have reached 
upper 70s to lower 80s.

August 20, 2019
High Knob Massif
Towering Cumulus Above Pickem Mountain
Photograph by Wayne Browning - © All Rights Reserved

Head Big Cherry Valley
Elevation 990 Meters ( 3248 feet )

June 2019
Average Daily Maximum: 67.5 degrees
Average Daily Minimum: 53.7 degrees
MEAN: 60.6 degrees
Highest Temperature: 77 degrees
**Lowest Temperature: 39 degrees
(**Lower-middle 30s in colder portions of wetland valleys)

July 2019
Average Daily Maximum: 72.0 degrees
Average Daily Minimum: 58.5 degrees
MEAN: 65.2 degrees
Highest Temperature: 78 degrees
**Lowest Temperature: 47 degrees
(**Lower 40s in colder portions of wetland valleys)

August 2019
Average Daily Maximum: 72.0 degrees
Average Daily Minimum: 56.5 degrees
MEAN: 64.2 degrees
Highest Temperature: 79 degrees
**Lowest Temperature: 48 degrees
(**Lower-middle 40s in colder portions of wetland valleys)

*University Of Virginia's College At Wise Research Station,
National Weather Service calibrated temperature sensor,
( Data Period: November 11, 2016 to Present ).

Summer 2019
Average Daily Maximum: 70.5 degrees
Average Daily Minimum: 56.2 degrees
MEAN: 63.4 degrees
Highest Temperature: 79 degrees
Lowest Temperature: 39 degrees


UVA-Wise
Undergraduate Field Studies
First Field Trip of Autumn 2019 Semester

31 August 2019
Flag Rock Green Salamander Sanctuary
Green Salamander (Aneides aeneus)
Photograph by Rachel Guevara - © All Rights Reserved

It took less than 5-minutes to find two 
Green Salamanders for illustration purposes.

31 August 2019
Flag Rock Green Salamander Sanctuary
Saddleback Caterpillar (Acharia stimulea)
Photograph by Rachel Guevara - © All Rights Reserved

This is a Saddleback Caterpillar (Acharia stimulea), with stimulea being a very appropriate species name as you will certainly be stimulated if touching this little fellow.

31 August 2019
Pickem Mountain of High Knob Massif
Early Signs of Autumn From Flag Rock RA
Photograph by Wayne Browning - © All Rights Reserved

The first hints of autumn are beginning to show in the high country, above 3000 feet, despite a continuation of summery weather (nights have been cooler).

31 August 2019
Beautiful Light From High Knob Lookout
Photograph by Wayne Browning - © All Rights Reserved

This section is under construction.  Please check back.

Wednesday, July 24, 2019

Wet Summer of 2019_High Knob Massif


July 24, 2019
Draining Big Cherry Lake Basin
South Fork of Powell River Gorge
Photograph by Wayne Browning - © All Rights Reserved

Brilliant sun rays strike gushing whitewater tumbling out 
of Big Cherry Lake basin during morning hours of July 24.
Yellow Birch (Betula alleghaniensis) trees add to the scene.

Vapor from the water was visibly rising back into the air, during a summer season in which the surface energy budget has been dominated by the latent heat flux to an extent even more than typical of this wettest terrain in Virginia (where mean precipitation exceeds potential evapotranspiration during all months of the year).  The result being a huge surplus of moisture whose excess is largely removed via runoff, supporting formation of creeks and streams that supply the local area and region with precious water.

A super-wet summer in the high country of the High Knob Massif has generated more than 22.00" of rainfall during the June 1 to August 2 period of 2019 (22.60" at Big Cherry Dam).

Monthly Total Precipitation
Big Cherry Lake Dam
(Elevation 3139 feet)

January
6.14"

February
12.50"

March
5.93"

April
6.64"

May
6.75"

June
10.68"

July
10.77"

August 1-2
1.15"

Summer 2019
(Jun 1-Aug 2)
22.60"

*2019 Total: 60.56" (M)
 (January 1 to August 2 Period)

12-Month Total: 91.85" (M)

(M): Some missing moisture in undercatch and frozen precipitation, with partial corrections applied for the 24.4 meter (80 feet) tall dam structure where rain gauges are located.

*Big Cherry Lake basin is the most productive water supply basin per unit area within the Old Dominion of Virginia.  Anyone who does not believe this fact is free to find another basin with higher precipitation totals over a period of years to decades that contains a water supply producing lake watershed.

July 24, 2019
Majestic Whitewater Draining Big Cherry Lake
Photograph by Wayne Browning - © All Rights Reserved

One reason Summer 2019 has been so wet is 
that surface to 850 MB vector wind composite anomalies have possessed a westerly component (WSW-SSW), which favors orographic lifting of air along the western front range of the Appalachians.

June 1 to July 22 of 2019
Surface Vector Wind Composite Anomaly

June 1 to July 22 of 2019
850 MB Vector Wind Composite Anomaly

Mean negative Sea Level Pressure (SLP) anomalies combined with a positive Integrated Moisture Flux into the southern Appalachians to support a wet pattern through this first half of Summer 2019.

June 1 to July 22 of 2019
Sea Level Pressure Composite Anomaly

June 1 to July 22 of 2019
Integrated Moisture Flux Composite Anomaly

For a look into the first week of August 2019, 

While anomalous wetness may continue through the end of summer, climatology favors a natural decrease caused by less insolation driving surface energy budget processes.

This occurs as mean daylight diminishes from 
14.0 hours in late July to 12.8 hours by the end 
of August, at 36.6 degrees North latitude, with approach of the autumnal equinox.

*Meteorological autumn (September-November) being 
a transitional time period between the convective season of summer and the orographic forcing season of late autumn through winter into spring.

Autumn is, therefore, typically the driest time of the year (autumn wetness, however, has been a recently documented trend within the Mountain Empire).

July 24, 2019
Elevations 3000 to 3400 feet
Draining Big Cherry Lake of High Knob Massif
Upper Gorge of the South Fork of Powell River
Photograph by Wayne Browning - © All Rights Reserved

While standing dead Canadian Hemlock (Tsuga canadensis) are visible near the creek, having been killed by Hemlock Wooly Adelgids, an abundance of young, healthy hemlocks live within the understory of the surrounding forest.

In the mountains, especially, an additional important factor with increasing significance through coming days and months will be declining solar angles which results in less available energy per unit area as the sun's rays are spread across 
an increasingly large surface and the mountain horizon effect becomes more of a local factor.

While astronomical sunrise and sunset are global in scale, the actual amount of solar radiation received at a given point is impacted by the local horizon.  Valleys, hollows, coves, and gorges embedded within complex terrain tend to have later sunrises and earlier sunsets, with sunrise and sunset from a surface energy budget perspective being determined by the local mountain horizon and when the sun is able to rise above it, and to drop beneath it, on a daily basis.

So, effective day light shortens much faster in complex terrain heading into autumn and winter with respect to energy received per unit area at the surface.  This occurs until eventually some of the most sheltered hollows and slopes receive little to no direct sunlight, only diffuse light, allowing frost and/or snow to easily linger from day to day 
if temperatures are chilly.

This is essentially the driver of mountain microclimates, with many additional factors involved whose summation collectively results 
in the actual microclimatic characteristics of a given location.

Recent Images From The 
UVA-Wise Research CAM

July 19, 2019 at 8:57 PM
Cumulonimbus Top Illuminated At Sunset
UVA-Wise Weather Research Webcam

July 20, 2019 at 11:31 AM
Towering Cumulus Develop Over High Terrain
UVA-Wise Weather Research Webcam

July 21, 2019 at 7:24 PM
Developing Downpour Over The High Country
UVA-Wise Weather Research Webcam

The development of visible orographic clouds that engulf upper elevations and appear to be laying upon the high country (as they persist for long periods of time) is a signal throughout the year 
for enhanced precipitation amounts.

Numerous such days have been documented during June and July of 2019, with more than 20.00" of rainfall in the High Knob Massif.

The Seeder-Feeder cloud mechanism is associated with orographic enhancement of precipitation amounts throughout the year when it develops. 

July 22, 2019 at 6:46 PM
Support For Heavy Rainfall Amounts
Seeder Clouds Above Orographic Feeder Clouds
Orographic Feeder Clouds Cap High Country
UVA-Wise Weather Research Webcam

July 23, 2019 at 8:30 PM
Cool, Much Drier Air Mass In Northerly Flow
UVA-Wise Weather Research Webcam

July 24, 2019 at 1:16 PM
Fair Weather Cumulus Decorate Pleasant Air
UVA-Wise Weather Research Webcam

Drier air allowed morning temperatures to drop into the 40s in typically colder mountain valleys of the High Knob Massif.

July 25, 2019 at 6:34 PM
Gorgeous Late July Air Mass In Mountains
UVA-Wise Weather Research Webcam

July 26, 2019 at 3:11 PM
Thicker Cumulus With Some Moisture Increase
UVA-Wise Weather Research Webcam

Moisture return aided the formation of afternoon sprinkles and brief showers during Saturday, July 27, a sign of things to come!

July 27, 2019 at 3:18 PM
Sprinkles-Brief Showers With Vertical Build
UVA-Wise Weather Research Webcam

Showers and local downpours centered in the 
High Knob area drop up to 0.50"+ of rainfall during Sunday afternoon (July 28).

July 28, 2019 at 4:46 PM
Localized Downpours Over High Country
UVA-Wise Weather Research Webcam

July 28, 2019 at 8:40 PM
Colorful Ending To The Weekend
UVA-Wise Weather Research Webcam

July 29, 2019 at 2:38 PM
More Local Downpours Over The High Terrain
UVA-Wise Weather Research Webcam

July 30, 2019 at 2:57 PM
Torrential Rain Producing Thunderstorms
UVA-Wise Weather Research Webcam

July 31, 2019 at 3:01 PM
Torrential Rains Fall Over High Country
UVA-Wise Weather Research Webcam

Torrential rains impacted the City of Norton and Town of Wise on afternoon hours of July 30-31.

July 31, 2019 at 5:05 PM
Jagged Outflow Boundary Clouds On Edge Of R+
UVA-Wise Weather Research Webcam

Two day rainfall totals of 3.00" to 4.00" fell upon the High Knob Lake area of the High Knob Massif, with repeated downpours.

Doppler Composite 48-Hour Rainfall Totals


August 1, 2019 at 8:40 PM
Cumulonimbus Towers Illuminated At Sunset
UVA-Wise Weather Research Webcam

More than 1.00" of rain fell upon Big Cherry Lake basin atop the High Knob high country, beneath towering cumulonimbus visible through the lower-level cloud opening below, to keep the wetness of Summer 2019 rolling onward.

August 2, 2019 at 1:36 PM
Rain Cooled Outflow From Nearby Storms
Cumulonimbus Towers Above Big Cherry Basin
UVA-Wise Weather Research Webcam

A stack of lenticularis clouds developed during 
late afternoon on August 2, as easterly air flow streamed into the High Knob Massif which, standing as a physical barrier, forced the air to 
rise and fall on its leeside in a wave-like pattern.

August 2, 2019 at 5:31 PM
Stacked Lenticular Clouds Above Massif
UVA-Wise Weather Research Webcam

Note at least six layers which were visible at this time, inside the black box, before being sheared and disrupted with continued propagation.

August 2, 2019 at 5:31 PM
Stacked Lenticular Clouds Above Massif
UVA-Wise Weather Research Webcam

August 2, 2019 at 5:36 PM
Lenticular Clouds And Other Orographic Forms
UVA-Wise Weather Research Webcam

This was part of a rather wild period that found 
the stacked lenticular cloud mass take on a more circular, flying saucer-like shape (a portion of which is obscured in the image below).

August 2, 2019 at 5:40 PM
Rounded Saucer-shaped Lenticulars And More
UVA-Wise Weather Research Webcam

August 2, 2019 at 5:40 PM
Rounded Saucer-shaped Lenticulars And More
UVA-Wise Weather Research Webcam

This was attached to a larger mass, with a low hanging base (only partially visible at top right 
of above image) that also contained lenticular and circular forms.

August 2, 2019 at 6:30 PM
Additional Standing Wave Clouds Develop
UVA-Wise Weather Research Webcam

This section is under construction.  Please check back.

Thursday, July 4, 2019

Mid-Summer 2019_High Knob Massif


Thunderstorms Build Above Big Cherry Lake
Photograph by Wayne Browning - © All Rights Reserved

A super-soaker of a summer weather pattern rolls forward with drenching thunderstorm rains over the high country, southwest of the High Knob Peak, during afternoon hours of July 3.  Rainfall totals topped 3.50" in parts of Big Cherry Lake basin.

Updated on July 24, 2019
Monthly Total Precipitation
Big Cherry Lake Dam
Elevation 3139 feet

January
6.14"

February
12.50"

March
5.93"

April
6.64"

May
6.75"

June
10.68"

July 1-24
10.19"

2019 Total: 58.83" (M)
 (January 1 to July 24 Period)

12-Month Total: 91.67" (M)

(M): Some missing moisture in undercatch and frozen precipitation, with partial corrections applied for the 24.4 meter (80 feet) tall dam structure where rain gauges are located.

The significance of above totals is not truly realized until looking at the bigger picture, as indicated by a few 2019 totals from across the Old Dominion through July 18.

Virginia & Nation's Capital
2019 Precipitation Totals
(January 1 to July 18 Period)

Charlottesville
22.56"

Lynchburg
22.71"

Roanoke
23.23"

Norfolk
23.62"

Bluefield
23.66"

Blacksburg
24.15"

Washington Dulles
24.27"

Danville
24.93"

Wytheville 1 S
25.09"

Wallops Island
27.48"

Washington National
28.29"

Richmond
29.55"

Burkes Garden
30.34"

Galax
32.69"

Clintwood 1 W
35.71"

Meadows of Dan 5 SW
40.22"

Big Cherry Dam
55.80"
(as of July 18)

Afternoon of July 3, 2019
Looking Toward The High Knob Massif
University Of Virginia's College At Wise

The research CAM at UVA-Wise revealed towering mounds of cumulonimbus clouds, through a small opening in the lower-level overcast, as torrential rain fell upon the high country between the High Knob Lookout Tower and Thunderstruck Knob 
of Powell Mountain. 

Afternoon of July 3, 2019
Towering Mounds of Cumulonimbus Clouds
University Of Virginia's College At Wise


First Half Of Summer
Cool & Wet In High Country

The first half of Summer 2019 has been very wet and seasonally cool in the high country of the 
High Knob Massif.

High Knob Lake Recreation Area
Rosebay Rhododendron (Rhododendron maximum)
Photograph by Wayne Browning - © All Rights Reserved

High Knob Lake – June 2019
Elevation 1074 Meters ( 3523 feet )

Average Daily Maximum: 68.4 degrees
Average Daily Minimum: 54.3 degrees
MEAN: 61.4 degrees
Highest Temperature: 78 degrees
Lowest Temperature: 39 degrees

*University Of Virginia's College At Wise Research Station
National Weather Service calibrated temperature sensor
( Data Period: November 19, 2016 to Present )

The highest temperature observed during June 1 to July 9, and so far during 2019, on the valley floor at High Knob Lake has been 78 degrees.

Coolest day-time temperatures during June were found along highest ridges of the massif, as well as in the sheltered upper portion of the Big Cherry Lake wetland valley, with mid-upper 60s.  Coolest night-time temperatures were within the open expanses of the Big Cherry Lake valley where average temps were around 50 degrees. 

For comparison, the June summary in the Tri-Cities, located 2000 vertical feet lower in elevation, within the Great Valley of northeastern Tennessee.

Month of June 2019
Daily Summary_Tri-Cities, TN

July is typically the hottest month of the year, and mean temperatures have come up significantly from June despite a continuation of Greenland Blocking (discussed below).

High Knob Lake – July 1-14 2019
Elevation 1074 Meters ( 3523 feet )

Average Daily Maximum: 74.4 degrees
Average Daily Minimum: 61.0 degrees
MEAN: 67.7 degrees
Highest Temperature: 78 degrees
Lowest Temperature: 59 degrees

*University Of Virginia's College At Wise Research Station
National Weather Service calibrated temperature sensor
( Data Period: November 19, 2016 to Present )

July 1-14, 2019
Daily Summary_Tri-Cities, TN

General coolness, especially in upper elevations, has been in part due to a record long-lived blocking pattern centered over Greenland associated with a negative phase of the North Atlantic Oscillation.

April 26 to July 7 in 2019
Record Long-lived Blocking

The strongest cooling effect has locally occurred where orographic forcing has been responsible for lifting air into higher elevations, with a persistent feed of moisture from the tropics supporting above average rainfall amounts (more than 21.00" during the April 26 to July 9 period).

June 1 to June 30 in 2019
850 MB Air Temperature Anomalies

Coolest conditions relative to average, with near to below normal temperatures, were observed during June (above graphic).

April 26 to July 7 in 2019
850 MB Air Temperature Anomalies

The entire April 26 to July 7 period of the current negative NAO phase featured near to above average air temperatures at lower elevations, in particular, with the most widespread cool temp anomalies extending from the southwestern USA across 
the Rockies into Canada. 

*This pattern has been responsible for holding a deep snowpack over the Rockies through June, while ridging aloft associated with the Greenland Block has supported dryness and above normal to record level temperatures across the state of Alaska (with extensive forest fires).


Summer Orographic Clouds

Following a lightning hit that took the research cam offline for a few days, Jim Stewart of the UVA-Wise Computer Science and Mathematics Department engineered a fix just in time for it to capture a simply majestic mix of orographic and convective clouds.  Enjoy a few example frames! 

July 17, 2019 at 8:17 PM
Orographic & Cumulonimbus Clouds Combined
UVA-Wise Weather Research Camera

July 17, 2019 at 8:19 PM
Orographic & Cumulonimbus Clouds Combined
 UVA-Wise Weather Research Camera

July 17, 2019 at 8:20 PM
Orographic & Cumulonimbus Clouds Combined
 UVA-Wise Weather Research Camera

July 17, 2019 at 8:21 PM
Orographic & Cumulonimbus Clouds Combined
 UVA-Wise Weather Research Camera

July 17, 2019 at 8:23 PM
Orographic & Cumulonimbus Clouds Combined
 UVA-Wise Weather Research Camera

July 17, 2019 at 8:25 PM
Orographic & Cumulonimbus Clouds Combined
 UVA-Wise Weather Research Camera

July 17, 2019 at 8:28 PM
Orographic & Cumulonimbus Clouds Combined
 UVA-Wise Weather Research Camera

July 17, 2019 at 8:30 PM
Orographic & Cumulonimbus Clouds Combined
UVA-Wise Weather Research Camera

More dramatic scenes were captured July 18 as 
air was lifted upward into the high country with building and back-building of thunderstorms that dropped more torrential rains.

July 18, 2019 at 6:02 PM
Clouds Being Lifted By Orographics-Convection
UVA-Wise Weather Research Camera

July 18, 2019 at 6:03 PM
Clouds Being Lifted By Orographics-Convection
UVA-Wise Weather Research Camera

July 18, 2019 at 6:04 PM
Clouds Being Lifted By Orographics-Convection
UVA-Wise Weather Research Camera

July 18, 2019 at 6:04 PM
Clouds Being Lifted By Orographics-Convection
UVA-Wise Weather Research Camera

July 18, 2019 at 6:05 PM
Clouds Being Lifted By Orographics-Convection
UVA-Wise Weather Research Camera

July 18, 2019 at 6:05 PM
Clouds Being Lifted By Orographics-Convection
UVA-Wise Weather Research Camera

July 18, 2019 at 6:05 PM
Clouds Being Lifted By Orographics-Convection
UVA-Wise Weather Research Camera

July 18, 2019 at 6:15 PM
Clouds Being Lifted By Orographics-Convection
UVA-Wise Weather Research Camera

 Both 1-Hour and 3-Hour Flash Flood Guidance 
values were exceeded over Big Cherry Lake Basin.


Doppler Composite 1-Hour Rainfall Totals

Locations from the western-southwestern side of the City of Norton through Powell Valley into the high country of the High Knob Massif received the burnt of torrential rains.

July 18, 2019 at 7:28 PM
Towering Clouds In Wake Of Heaviest Rain
UVA-Wise Weather Research Camera

July 18, 2019 at 8:53 PM
Sunset Over A Tropical Mountain Landscape
UVA-Wise Weather Research Camera