Alert archive / Ohio / Special Weather Statements in 2020

Special Weather Statement, NWS Charleston, WV

July 22, 2020Gallia County, Jackson County, Lawrence County, Ohio; Carter County, Greenup County, Kentucky

NWS Charleston, WV issued this special weather statement at Jul 22, 2020, 4:02 PM EDT for Gallia County, Jackson County, Lawrence County, Ohio; Carter County, Greenup County, Kentucky. It was in force for 28 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: Jul 22, 2020, 4:02 PM EDT (20:02 UTC)
Expired: Jul 22, 2020, 4:30 PM EDT
In force: 28 min
Issued by: NWS Charleston, WV

Counties Carter County, KY, Greenup County, KY, Gallia County, OH, Jackson County, OH, Lawrence County, OH

The radar

The Charleston,WV radar (KRLX), 109 km from the middle of the area, began a volume at 20:05 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.0 hours before the alert went out and 116 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 7 J/kg
Mixed-layer CIN: -157 J/kg
Mixed-layer LCL: 1066 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jul 22, 2:48 PM EDT, 1 hour 14 minutes earlier.

Area forecast discussion, Jul 22, 2:48 PM EDT, 1 hour 14 minutes before

AREA FORECAST DISCUSSION
National Weather Service Charleston WV
248 PM EDT Wed Jul 22 2020

.SYNOPSIS...
A cold front enhances the chance for strong, heavy showers and
thunderstorms through Thursday, before pushing through Thursday
night and Friday. Slightly drier weather for the weekend.

&&

.NEAR TERM /THROUGH THURSDAY/...
As of 240 PM Wednesday...

An upper level trough moving through the Ohio Valley region has
been pushing several waves of convection across the area today.
The first of these waves, has already exited to our east and
currently the second wave is approaching the western edge of the
CWA. This should bring another round of scattered showers and
storms into the area through the evening. A few of the stronger
storms may be accompanied by strong to severe wind gusts.

Moisture remains fairly high and precipitable water values are
in the 1.5-2" range. This indicates heavy rainfall may be
possible with any convection this afternoon/evening and along
the eastern half of the CWA there is a risk of excessive
rainfall.

On Thursday, the upper level trough will bring a front in to
the area bringing another opportunity for showers and storms to
develop during the day. These storms could bring more heavy
rains and a few storms could become severe. Convection should
begin to decrease during the evening as cooling begins.

During the day tomorrow, temperatures should reach highs in the
80s throughout the lowlands and upper 60s-70s in the higher
elevations.

&&

.SHORT TERM /THURSDAY NIGHT THROUGH FRIDAY NIGHT/...
As of 248 PM Wednesday...

Surface front will continue to reside over the region through
the short term but it will become less well defined with upper
level ridging starting to build in from the west. The net result
will be a continuation of showers/storms but they will become
less numerous through time with a drier airmass trying to advect
in from the northwest by Friday afternoon and night.

Temperatures will remain very warm despite the attempt of an
airmass change with highs on Friday likely warming back into the
upper 80s to near 90 in the lowlands. Dewpoints will likely
lower into the mid 60s allowing for a relatively comfortable
night Friday night. In fact, Friday night looks like a good
night for dense fog development with temperatures falling
several degrees below river/lake temps after the recent warm
weather so decided to go ahead and add in some patchy dense fog
wording into the forecast.

&&

.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
As of 248 PM Wednesday...

High pressure appears poised to build into the region briefly
over the weekend. Still enough moisture hanging around with a
weakness in the ridge to our east so an isolated mountain
shower/storm will be possible each afternoon, but most locations
should remain dry Saturday and Sunday. Temperatures will be
forecast to rebound back into the 90s in the lowlands but
dewpoints stay in the 60s keeping afternoon heat indices
manageable.

Models are in good agreement in shunting the ridge back to our
west for early next week as another longwave trough digs into
the Great Lakes and Northeast. This will force another surface
front southward into the region renewing thunderstorms chances
Monday through Wednesday.

&&

.AVIATION /19Z WEDNESDAY THROUGH MONDAY/...
As of 205 PM Wednesday...

Have seen a bit of a decrease in convection this afternoon,
but, by evening, another round of showers should move through
the area. For now, have coded VCTS into the TAFS though this may
need to be amended later on.

MVFR in the mountains should gradually improve over the next
couple of hours and VFR is generally expected to dominate the
TAF period. However, convection moving through the area could
briefly lead to degraded conditions.

Sustained winds should remain in the 5-10kt range though it is
possible for strong gusts to occur during storms this
afternoon/evening.

FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 18Z THURSDAY...

ALTERNATE SCENARIOS: Thunderstorm coverage/timing may vary from
the forecast.

EXPERIMENTAL TABLE OF FLIGHT CATEGORY OBJECTIVELY SHOWS CONSISTENCY
OF WFO FORECAST TO AVAILABLE MODEL INFORMATION:
H = HIGH:   TAF CONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL.
M = MEDIUM: TAF HAS VARYING LEVEL OF CONSISTENCY WITH MODELS.
L = LOW:    TAF INCONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL.

UTC 1HRLY       18   19   20   21   22   23   00   01   02   03   04   05
EDT 1HRLY       14   15   16   17   18   19   20   21   22   23   00   01
CRW CONSISTENCY  H    H    H    H    H    H    H    H    H    H    H    H
HTS CONSISTENCY  H    H    H    H    H    H    H    H    H    H    H    H
BKW CONSISTENCY  H    H    H    H    H    H    H    H    H    H    H    H
EKN CONSISTENCY  H    H    H    H    H    H    H    H    H    H    H    H
PKB CONSISTENCY  H    H    H    H    H    H    H    H    H    H    H    H
CKB CONSISTENCY  H    H    H    H    H    H    H    H    H    H    H    H

AFTER 18Z THURSDAY...

&&

.RLX WATCHES/WARNINGS/ADVISORIES...
WV...None.
OH...None.
KY...None.
VA...None.

&&

SYNOPSIS...ABE/JLB
NEAR TERM...JLB
SHORT TERM...ABE
LONG TERM...ABE
AVIATION...JLB

Hazardous weather outlook, Jul 22, 2:26 PM EDT, 1 hour 36 minutes before

Hazardous Weather Outlook
National Weather Service Charleston WV
226 PM EDT Wed Jul 22 2020

KYZ101>103-105-OHZ066-067-075-076-083>087-VAZ003-004-WVZ005>011-
013>020-024>034-039-040-515>526-231830-
Greenup-Carter-Boyd-Lawrence KY-Perry-Morgan-Athens-Washington-
Jackson OH-Vinton-Meigs-Gallia-Lawrence OH-Dickenson-Buchanan-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-McDowell-Wyoming-Upshur-Barbour-
Northwest Raleigh-Southeast Raleigh-Northwest Fayette-
Southeast Fayette-Northwest Nicholas-Southeast Nicholas-
Northwest Webster-Southeast Webster-Northwest Pocahontas-
Southeast Pocahontas-Northwest Randolph-Southeast Randolph-
226 PM EDT Wed Jul 22 2020

This Hazardous Weather Outlook is for northeast Kentucky, southeast
Ohio, southwest Virginia and much of West Virginia.

.DAY ONE...This Afternoon and Tonight.

An isolated severe thunderstorm is possible this afternoon and
evening. Damaging winds would be the primary threat from any severe
thunderstorm. There is also a threat for excessive rainfall which
could lead to localized flash flooding.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

An isolated severe thunderstorm is possible Thursday afternoon and
evening. Damaging winds would be the primary threat from any severe
thunderstorm. There is also a threat for excessive rainfall which
could lead to localized flash flooding.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions by calling the toll-free spotter hotline, or by other
methods detailed at www.weather.gov/rlx/reports.

ABE

In the hours before

Special weather statement, Jul 22, 11:53 AM EDT, 4 hours 9 minutes before

Special Weather Statement
National Weather Service Charleston WV
1153 AM EDT Wed Jul 22 2020

WVZ040-525-526-221630-
Barbour-Northwest Randolph-Southeast Randolph-
1153 AM EDT Wed Jul 22 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN RANDOLPH AND
SOUTHEASTERN BARBOUR COUNTIES...

At 1152 AM EDT, a strong thunderstorm was located over Elkins, moving
east at 35 mph.

Winds up to 40 mph are possible with this storm.

Locations impacted include...
Elkins, Belington, Dailey, Beverly, Junior, Womelsdorf (Coalton),
Montrose, Harman, Pheasant Run, Dryfork, Glady, Bowden and Kerens.

This includes Route 33 between mile markers 31 and 35.

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.

LAT...LON 3893 7946 3890 7945 3889 7948 3889 7952
      3887 7951 3884 7954 3883 7952 3882 7953
      3878 8001 3899 8001 3908 7978 3904 7978
      3904 7977 3897 7951 3898 7948 3897 7944
      3893 7942
TIME...MOT...LOC 1552Z 250DEG 29KT 3893 7989

ABE

Special weather statement, Jul 22, 12:26 PM EDT, 3 hours 36 minutes before

Special Weather Statement
National Weather Service Charleston WV
1226 PM EDT Wed Jul 22 2020

WVZ032-040-221715-
Barbour-Taylor-
1226 PM EDT Wed Jul 22 2020

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN TAYLOR AND BARBOUR
COUNTIES...

At 1225 PM EDT, a strong thunderstorm was located near Philippi,
moving northeast at 25 mph.

Winds up to 40 mph and pea size hail are possible with this storm.

Locations impacted include...
Grafton, Philippi, Flemington, Moatsville, Tygart Lake State Park,
Volga, Thornton, Knottsville, Galloway and Nestorville.

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.

LAT...LON 3921 7981 3920 7983 3913 7984 3911 7982
      3904 8013 3918 8022 3924 8016 3925 8017
      3939 7990 3930 7989 3929 7986 3924 7985
      3923 7981
TIME...MOT...LOC 1625Z 243DEG 23KT 3917 8011

ABE

Special weather statement, Jul 22, 3:35 PM EDT, 27 minutes before

Special Weather Statement
National Weather Service Charleston WV
335 PM EDT Wed Jul 22 2020

KYZ101>103-OHZ083>087-222000-
Boyd-Greenup-Carter-Jackson-Meigs-Gallia-Lawrence-Vinton-
335 PM EDT Wed Jul 22 2020

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN BOYD...
GREENUP...CENTRAL CARTER...WEST CENTRAL MEIGS...NORTHWESTERN
GALLIA...JACKSON...SOUTHERN VINTON AND NORTHWESTERN LAWRENCE
COUNTIES...

At 334 PM EDT, radar indicated strong thunderstorms were located
along a line extending from 9 miles north of Jackson to near Head of
Grassy. Movement was southeast at 20 mph.

Wind gusts up to 50 mph are possible with these storms.

Locations impacted include...
Portsmouth, Ironton, Jackson, Wellston, Grayson, Olive Hill, Oak
Hill, Lake Vesuvius, Carter Caves State Park, New Boston, Greenup,
Denton, Gesling, Greenbo Lake, Oldtown, Load, Letitia, Princess,
Naples and Rush.

This includes Interstate 64 in Kentucky between mile markers 155 and
182.

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

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.

LAT...LON 3834 8323 3842 8324 3849 8319 3859 8307
      3873 8303 3876 8289 3858 8284 3860 8274
      3861 8274 3868 8276 3868 8270 3883 8265
      3886 8276 3894 8275 3895 8281 3912 8279
      3921 8272 3915 8224 3826 8283 3833 8327
TIME...MOT...LOC 1934Z 305DEG 38KT 3917 8271 3839 8335

22

Special weather statement, Jul 22, 4:02 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Charleston WV
402 PM EDT Wed Jul 22 2020

KYZ101>103-OHZ083>087-222030-
Boyd-Greenup-Carter-Jackson-Meigs-Gallia-Lawrence-Vinton-
402 PM EDT Wed Jul 22 2020

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL BOYD...
GREENUP...CARTER...WEST CENTRAL MEIGS...NORTHWESTERN GALLIA...
JACKSON...SOUTH CENTRAL VINTON AND CENTRAL LAWRENCE COUNTIES...

At 402 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Jackson to near Haldeman. Movement
was east at 25 mph.

Wind gusts of 50 to 55 mph are possible with these storms.

Locations impacted include...
Ashland, Portsmouth, Ironton, Jackson, Wellston, Grayson, Coal Grove,
Olive Hill, Oak Hill, Rio Grande, Rutland, Cannonsburg, Lake
Vesuvius, Carter Caves State Park, New Boston, Greenup, Coalton,
Denton, Gesling and Greenbo Lake.

This includes Interstate 64 in Kentucky between mile markers 151 and
185.

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

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.

LAT...LON 3833 8332 3834 8323 3843 8323 3859 8307
      3873 8303 3876 8289 3858 8284 3860 8274
      3868 8276 3868 8270 3885 8265 3886 8276
      3894 8275 3895 8280 3897 8281 3912 8271
      3904 8208 3819 8287 3831 8334
TIME...MOT...LOC 2002Z 323DEG 58KT 3907 8260 3831 8327

22

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 11:53 AM EDT	Special Weather Statement	RLX	Randolph	37 min
Jul 22, 12:26 PM EDT	Special Weather Statement	RLX	Barbour	49 min
Jul 22, 4:35 PM EDT	Special Weather Statement	RLX	Mason	25 min
Jul 22, 4:58 PM EDT	Severe Thunderstorm Warning	RLX	Cabell, Lincoln, Wayne	47 min
Jul 22, 5:18 PM EDT	Severe Thunderstorm Warning	RLX	Cabell, Kanawha, Lincoln, Mason, Putnam	42 min
Jul 22, 5:59 PM EDT	Special Weather Statement	RLX	Kanawha	31 min
Jul 22, 6:09 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Kanawha, Lincoln, Putnam, Roane	40 min
Jul 22, 6:43 PM EDT	Special Weather Statement	RLX	Fayette	32 min
Jul 22, 7:03 PM EDT	Special Weather Statement	RLX	Braxton, Calhoun, Gilmer	27 min
Jul 22, 7:22 PM EDT	Special Weather Statement	RLX	Nicholas	23 min
Jul 22, 7:42 PM EDT	Special Weather Statement	RLX	Braxton	33 min
Jul 22, 7:47 PM EDT	Severe Thunderstorm Warning	RLX	Braxton, Lewis, Randolph, Upshur, Webster	43 min
Jul 22, 5:06 AM EDT	Special Weather Statement	RLX	Morgan	24 min
Jul 22, 3:35 PM EDT	Special Weather Statement	RLX	Jackson	25 min
Jul 21, 10:52 PM EDT	Special Weather Statement	RLX	Dickenson	53 min

Nearby

Special Weather Statements in Ohio, 2020 Special Weather Statements in Kentucky, 2020 Every special weather statement in 2020

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.