Alert archive / West Virginia / Special Weather Statements in 2021

Special Weather Statement, NWS Charleston, WV

August 16, 2021McDowell County, West Virginia

NWS Charleston, WV issued this special weather statement at Aug 16, 2021, 8:31 PM EDT for McDowell County, West Virginia. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 16, 2021, 8:31 PM EDT (00:31 UTC)
Expired
Aug 16, 2021, 9:00 PM EDT
In force
29 min
Issued by
NWS Charleston, WV
Hail
0.00 in
Wind
30

County McDowell County, WV

The radar

The Charleston,WV radar (KRLX), 109 km from the middle of the area, began a volume at 00:33 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 0.5 hours before the alert went out and 173 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 00:00Z on 2021-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 618 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2021-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
618 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
929 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Charleston, WV wrote its last area forecast discussion before this special weather statement went out at Aug 16, 7:41 PM EDT, 50 minutes earlier.

Area forecast discussion, Aug 16, 7:41 PM EDT, 50 minutes before
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Aug 16, 5:58 AM EDT, 14 hours 33 minutes before
Hazardous Weather Outlook
National Weather Service Charleston WV
558 AM EDT Mon Aug 16 2021

KYZ101>103-105-OHZ066-067-075-076-083>087-WVZ005>011-013>020-024>032-
039-040-171000-
Greenup-Carter-Boyd-Lawrence KY-Perry-Morgan-Athens-Washington-
Jackson OH-Vinton-Meigs-Gallia-Lawrence OH-Wayne-Cabell-Mason-
Jackson WV-Wood-Pleasants-Tyler-Lincoln-Putnam-Kanawha-Roane-Wirt-
Calhoun-Ritchie-Doddridge-Mingo-Logan-Boone-Clay-Braxton-Gilmer-
Lewis-Harrison-Taylor-Upshur-Barbour-
558 AM EDT Mon Aug 16 2021

This Hazardous Weather Outlook is for northeast Kentucky, southeast
Ohio, and portions of central West Virginia, northern West
Virginia, southern West Virginia and western West Virginia.

.DAY ONE...Today and Tonight.

There is a slight risk for excessive rainfall for heavier showers or
thunderstorms hitting the same location multiple times.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Moisture from the remnants of Tropical Storm Fred will interact with
an upper level system to result in rounds of showers and
thunderstorms Tuesday and Wednesday, when the remnants themselves
arrive.

There is a marginal risk for excessive rainfall for Tuesday and
Tuesday night, with isolated to scattered flash flooding possible
for areas that receive repetitive rounds of heavy rain.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

VAZ003-004-WVZ033-034-515>526-171000-
Dickenson-Buchanan-McDowell-Wyoming-Northwest Raleigh-
Southeast Raleigh-Northwest Fayette-Southeast Fayette-
Northwest Nicholas-Southeast Nicholas-Northwest Webster-
Southeast Webster-Northwest Pocahontas-Southeast Pocahontas-
Northwest Randolph-Southeast Randolph-
558 AM EDT Mon Aug 16 2021

This Hazardous Weather Outlook is for southwest Virginia, and
portions of northeast West Virginia, southeast West Virginia and
southern West Virginia.

.DAY ONE...Today and Tonight.

There is a slight risk for excessive rainfall for heavier showers or
thunderstorms hitting the same location multiple times.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Moisture from the remnants of Tropical Storm Fred will interact with
an upper level system to result in rounds of showers and
thunderstorms Tuesday and Wednesday, when the remnants themselves
arrive.

There is a slight risk for excessive rainfall for Tuesday and Tuesday
night, with isolated to scattered flash flooding possible for areas
that receive repetitive rounds of heavy rain.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Aug 16, 5:57 PM EDT, 2 hours 34 minutes before
Special Weather Statement
National Weather Service Charleston WV
557 PM EDT Mon Aug 16 2021

WVZ520-162230-
Southeast Nicholas WV-
557 PM EDT Mon Aug 16 2021

...Heavy showers and thunderstorms impacting portions of
southeastern Nicholas County through 630 PM EDT...

At 554 PM EDT, Doppler radar was tracking heavy, repetitive showers
and thunderstorms along a line extending from near Richwood to 8
miles northwest of Duo. Movement was northeast at 20 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Torrential rainfall has occurred with the earlier storms, and may
lead to localized flooding. Do not drive your vehicle through
flooded roadways.

Locations impacted include...
Richwood and Nettie.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to travel across
flooded roads. Find alternate routes. It takes only a few inches of
swiftly flowing water to carry vehicles away.

&&

LAT...LON 3831 8057 3814 8082 3810 8070 3826 8046
TIME...MOT...LOC 2154Z 212DEG 18KT 3828 8049 3817 8066

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

12
Local storm report, Aug 16, 6:22 PM EDT, 2 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON WV
622 PM EDT MON AUG 16 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 PM     HEAVY RAIN       2 SW HURRICANE          38.42N 82.04W
08/16/2021  M2.52 INCH       PUTNAM             WV   COCORAHS

            2.52 INCHES RAINFALL SINCE 5 AM, WITH 0.82
            INCHES OF IT BETWEEN 5 AM AND THE 7 AM
            OBSERVATION.

0527 PM     HEAVY RAIN       2 NNW WEST HAMLIN       38.31N 82.21W
08/16/2021  M2.13 INCH       CABELL             WV   EMERGENCY MNGR

            TWO AND AN EIGHTH INCHES RAINFALL SINCE 7
            AM. MOST OF THE RAIN FELL THIS MORNING.

&&
Special weather statement, Aug 16, 6:57 PM EDT, 1 hour 34 minutes before
Special Weather Statement
National Weather Service Charleston WV
657 PM EDT Mon Aug 16 2021

VAZ004-WVZ033-162330-
Buchanan VA-McDowell WV-
657 PM EDT Mon Aug 16 2021

...Heavy showers and thunderstorms impacting portions of
northwestern Buchanan and northwestern McDowell Counties through 730
PM EDT...

At 656 PM EDT, Doppler radar was tracking heavy showers and
thunderstorms along a line extending from near Gilbert Creek to near
Paw Paw. Movement was northeast at 20 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Torrential rainfall with these and earlier showers and thunderstorms
may lead to localized flooding. Do not drive your vehicle through
flooded roadways.

Locations impacted include...
Big Rock, Hurley and Panther.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to travel across
flooded roads. Find alternate routes. It takes only a few inches of
swiftly flowing water to carry vehicles away.

&&

LAT...LON 3737 8221 3753 8195 3751 8194 3752 8193
      3751 8193 3752 8191 3748 8181 3731 8216
TIME...MOT...LOC 2256Z 217DEG 17KT 3754 8187 3737 8212

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

12
Local storm report, Aug 16, 7:41 PM EDT, 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON WV
741 PM EDT MON AUG 16 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1145 AM     FLASH FLOOD      5 SSW ALUM CREEK        38.22N 81.88W
08/15/2021                   LINCOLN            WV   EMERGENCY MNGR

            WATER IN AT LEAST 5 HOUSES AND UNDER SEVERAL
            MORE ALONG BUCKEYE FORK. SOME OF THE HOUSES
            FLOODED WERE AGAINST HILLSIDES AND SOME WERE
            NOT.

1028 PM     HEAVY RAIN       5 SSW ALUM CREEK        38.22N 81.88W
08/15/2021  M3.50 INCH       LINCOLN            WV   PUBLIC

            MOST OF THE RAIN FELL SUNDAY MORNING.

&&
Local storm report, Aug 16, 8:00 PM EDT, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON WV
800 PM EDT MON AUG 16 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1045 AM     DEBRIS FLOW      5 SSW ALUM CREEK        38.22N 81.88W
08/15/2021                   LINCOLN            WV   EMERGENCY MNGR

            SEVERAL MUDSLIDES ALONG MCCORKLE RD.

&&
Special weather statement, Aug 16, 8:31 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Charleston WV
831 PM EDT Mon Aug 16 2021

WVZ033-034-170100-
Wyoming WV-McDowell WV-
831 PM EDT Mon Aug 16 2021

...Heavy showers and thunderstorms impacting portions of eastern
McDowell and southeastern Wyoming Counties through 900 PM EDT...

At 829 PM EDT, Doppler radar was tracking heavy showers and
thunderstorms along a line extending from near Wenonah to near
Amonate. Movement was north at 5 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Torrential rainfall is also occurring with these storms, and may
lead to localized flooding. Do not drive your vehicle through
flooded roadways.

Locations impacted include... Welch, Mullens, Gary, War, Northfork,
Keystone, Anawalt, Kimball, Maybeury, Elbert, Coalwood, Cucumber,
Jenkinjones and Herndon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to travel across
flooded roads. Find alternate routes. It takes only a few inches of
swiftly flowing water to carry vehicles away.

&&

LAT...LON 3729 8176 3764 8141 3755 8130 3751 8124
      3746 8131 3742 8128 3741 8129 3742 8131
      3732 8137 3732 8140 3727 8142 3727 8145
      3725 8148 3726 8150 3723 8151 3721 8156
      3720 8167
TIME...MOT...LOC 0029Z 193DEG 6KT 3752 8127 3725 8161

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

12

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 16, 9:01 PM EDTFlash Flood WarningRLXMcDowell, Wyoming3 hr
Aug 16, 11:18 PM EDTSpecial Weather StatementRLXBraxton27 min
Aug 17, 2:56 AM EDTFlash Flood WatchRLXBarbour, Boone, Braxton, Cabell, Calhoun, Clay and 28 more33 hr

Nearby

Special Weather Statements in West Virginia, 2021Every special weather statement in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.