Alert archive / Ohio / Special Weather Statements in 2019

Special Weather Statement, NWS Charleston, WV

July 11, 2019Mason County, West Virginia; Gallia County, Jackson County, Meigs County, Ohio

NWS Charleston, WV issued this special weather statement at Jul 11, 2019, 10:49 AM EDT for Mason County, West Virginia; Gallia County, Jackson County, Meigs County, Ohio. It was in force for 56 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 11, 2019, 10:49 AM EDT (14:49 UTC)
Expired: Jul 11, 2019, 11:45 AM EDT
In force: 56 min
Issued by: NWS Charleston, WV

Counties Gallia County, OH, Jackson County, OH, Meigs County, OH, Mason County, WV

The radar

The Charleston,WV radar (KRLX), 92 km from the middle of the area, began a volume at 14:50 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, 2.8 hours before the alert went out and 127 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: 553 J/kg
Mixed-layer CIN: -88 J/kg
Mixed-layer LCL: 1031 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.4

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 11, 9:39 AM EDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jul 11, 9:39 AM EDT, 1 hour 10 minutes before

AREA FORECAST DISCUSSION
National Weather Service Charleston WV
939 AM EDT Thu Jul 11 2019

.SYNOPSIS...
Cold front moves through on later today with strong storms.
Another high pressure builds for the beginning of the weekend.
Unsettled weather returns next week.

&&

.NEAR TERM /THROUGH TONIGHT/...
As of 940 AM Thursday...

Performed a refresh on PoPs this morning to better correlate
with radar and satellite trends. Do expect to be somewhat
chasing PoPs today, as synoptic forcing lends to scattered
convection along subtle mesoscale waves in the uncapped
environment. At this hour, a broken prefrontal wave crosses the
64/79 corridors with another wave forming behind it over
southern Ohio. Will have to carefully monitor these storm
clusters as they intensify this afternoon, and as they modify
the environment the eventual cold front enters this evening.

As of 530 AM Thursday...

A cold front will approach from the west tonight. Ahead of the
front, expect an increase in clouds and showers mainly across
the southern half of the area this morning. Shower and storm
activity could intensity this afternoon aided by afternoon heat
and CAPE and some deep layered shear. In fact, there is a slight
risk for severe thunderstorms over portions of southeast OH and
northern half of WV through this evening. The main threat will
be damaging winds. PWATs around 2.25 inches suggest heavy
downpours could result in very heavy instantaneous pcpn rates
leading to flash flooding.

The actual cold front arrives along the OH River by 06Z tonight,
to promote additional showers or storms over the area. The front
moves east late tonight, exiting the eastern mountains by early
Friday morning.

&&

.SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/...
As of 215 AM Thursday...

Gradual drying trend taking hold in the short term period. Could
still be a stray shower or storm on Friday, mainly across the
higher terrain during peak heating hours. Otherwise, high
pressure will gradually take hold, keeping the region dry
through the remainder of the extended period. There is a small
possibility for a stray shower or storm across far southwest VA
on Saturday as moisture streams northward from tropical low, but
overall area should remain dry.

&&

.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
As of 215 AM Thursday...

Showers and storms will increase in coverage again particularly
across the north at the start of the period as a frontal
boundary sags south towards the area. Period gradually becomes
more active by early to mid next week, as tropical low remnants
move north into the area. There is still however lots of
uncertainty with this and discrepancy between models concerning
the path and timing.

&&

.AVIATION /14Z THURSDAY THROUGH MONDAY/...
As of 650 AM Thursday...

Showers and storms ahead of an approaching cold front have
already developed across southeast OH, spreading east into
portions of WV. This activity is slow moving. Thus, is causing
periods of IFR along their path. By 2 pm, an increase in showers
and storm activity is expected due to afternoon heating, ample
surface based CAPE and limited deep layered shear.

PWATs will increase to 2.25 inches, which could result in very
heavy downpours with each storm. The front will arrive to
the OH River by 00Z Friday, and continue to produce shower
activity through 12Z Friday.

FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 12Z FRIDAY...

FORECAST CONFIDENCE: Medium.

ALTERNATE SCENARIOS: May not have restrictions at CRW tonight.

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       12   13   14   15   16   17   18   19   20   21   22   23
EDT 1HRLY       08   09   10   11   12   13   14   15   16   17   18   19
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  L    H    H    H    H    H    H    H    H    H    H    H
PKB CONSISTENCY  L    M    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 12Z FRIDAY...
No widespread IFR conditions expected.

&&

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

&&

SYNOPSIS...ARJ/SL
NEAR TERM...ARJ/MC
SHORT TERM...SL
LONG TERM...SL
AVIATION...ARJ

Hazardous weather outlook, Jul 11, 4:25 AM EDT, 6 hours 24 minutes before

Hazardous Weather Outlook
National Weather Service Charleston WV
425 AM EDT Thu Jul 11 2019

VAZ003-004-WVZ024>026-033-034-515>518-120830-
Dickenson-Buchanan-Mingo-Logan-Boone-McDowell-Wyoming-
Northwest Raleigh-Southeast Raleigh-Northwest Fayette-
Southeast Fayette-
425 AM EDT Thu Jul 11 2019

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

.DAY ONE...Today and Tonight.

There is a marginal risk for severe thunderstorms Today. Damaging
winds are the primary risk.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

OHZ066-067-075-076-083-084-WVZ010-011-019-020-027>032-039-040-
519>526-120830-
Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Pleasants-Tyler-
Ritchie-Doddridge-Clay-Braxton-Gilmer-Lewis-Harrison-Taylor-Upshur-
Barbour-Northwest Nicholas-Southeast Nicholas-Northwest Webster-
Southeast Webster-Northwest Pocahontas-Southeast Pocahontas-
Northwest Randolph-Southeast Randolph-
425 AM EDT Thu Jul 11 2019

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

.DAY ONE...Today and Tonight.

There is a slight risk for severe thunderstorms today. Damaging
winds are the primary risk.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

KYZ101>103-105-OHZ085>087-WVZ005>009-013>018-120830-
Greenup-Carter-Boyd-Lawrence KY-Meigs-Gallia-Lawrence OH-Wayne-
Cabell-Mason-Jackson WV-Wood-Lincoln-Putnam-Kanawha-Roane-Wirt-
Calhoun-
425 AM EDT Thu Jul 11 2019

This Hazardous Weather Outlook is for northeast Kentucky, portions
of 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 severe thunderstorms today. Damaging
winds are the primary risk.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 11, 7:54 AM EDT, 2 hours 55 minutes before

Special Weather Statement
National Weather Service Charleston WV
754 AM EDT Thu Jul 11 2019

KYZ102-105-WVZ005-111245-
Carter-Lawrence-Wayne-
754 AM EDT Thu Jul 11 2019

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT LAWRENCE...
SOUTHEASTERN CARTER AND SOUTHWESTERN WAYNE COUNTIES...

At 750 AM EDT, strong thunderstorms were clustered over Little Sandy,
or near Sandy Hook, moving east at 25 mph.

Locations impacted include...
Louisa, Blaine, Yatesville Lake State Park, Fort Gay, Webbville,
Ulysses, Charley, Centerville, Bruin, Martha, Keaton, Gallup,
Clifford, Glenhayes, Willard, Buchanan, Houckville and Fallsburg.

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

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 3826 8260 3825 8259 3826 8257 3827 8253
      3791 8248 3795 8250 3796 8257 3792 8260
      3789 8260 3788 8262 3800 8294 3796 8299
      3797 8302 3800 8302 3804 8300 3805 8296
      3812 8289 3817 8292 3818 8305 3819 8306
TIME...MOT...LOC 1150Z 269DEG 32KT 3803 8321

21

Special weather statement, Jul 11, 10:49 AM EDT, 0 minutes before

Special Weather Statement
National Weather Service Charleston WV
1049 AM EDT Thu Jul 11 2019

OHZ075-076-083>087-WVZ007>009-014-111545-
Washington-Jackson-Athens-Meigs-Gallia-Lawrence-Vinton-Jackson-Mason-
Wood-Putnam-
1049 AM EDT Thu Jul 11 2019

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT MEIGS...SOUTHWESTERN
WASHINGTON...GALLIA...SOUTHERN JACKSON...SOUTHEASTERN ATHENS...
SOUTHEASTERN VINTON...NORTHERN LAWRENCE...MASON...NORTH CENTRAL
PUTNAM...NORTHWESTERN JACKSON AND WEST CENTRAL WOOD COUNTIES...

At 1047 AM EDT, strong thunderstorms were clustered near Oak Hill,
moving east at 35 mph.

Winds in excess of 30 mph are possible with these storms.

Locations impacted include...
Jackson, Point Pleasant, Gallipolis, Pomeroy, Oak Hill, Rio Grande,
Racine, Coolville, Rutland, Forked Run State Park, Ravenswood, New
Haven, Mason, Tuppers Plains, Gallia, Vernon, Waterloo, Middleport,
Chester and Syracuse.

Torrential rainfall is also occurring with up to an inch in an hour,
with these storms. This rain may cause localized flooding. Do not
drive your vehicle through flooded roadways.

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 3868 8276 3868 8271 3875 8270 3875 8266
      3885 8265 3886 8276 3892 8276 3903 8273
      3931 8169 3865 8182 3863 8276
TIME...MOT...LOC 1447Z 268DEG 33KT 3885 8248

21

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 11:34 AM EDT	Special Weather Statement	RLX	Pleasants, Ritchie, Wood	26 min
Jul 11, 12:00 PM EDT	Special Weather Statement	RLX	Pleasants, Ritchie	45 min
Jul 11, 12:13 PM EDT	Flash Flood Warning	RLX	Doddridge, Pleasants, Ritchie, Tyler, Wood	2 hr
Jul 11, 12:34 PM EDT	Special Weather Statement	RLX	Gilmer, Wirt	41 min
Jul 11, 12:35 PM EDT	Flash Flood Watch	RLX	Barbour, Harrison, Lewis, Pocahontas, Randolph, Taylor and 2 more	7 hr
Jul 11, 1:22 PM EDT	Special Weather Statement	RLX	Kanawha	38 min
Jul 11, 1:41 PM EDT	Special Weather Statement	RLX	Pocahontas, Randolph	64 min
Jul 11, 1:46 PM EDT	Special Weather Statement	RLX	Pocahontas, Randolph	59 min
Jul 11, 1:53 PM EDT	Special Weather Statement	RLX	Braxton, Lewis, Upshur, Webster	52 min
Jul 11, 2:24 PM EDT	Flash Flood Warning	RLX	Pocahontas	3 hr
Jul 11, 2:29 PM EDT	Flash Flood Warning	RLX	Braxton, Lewis, Randolph, Upshur, Webster	3 hr
Jul 11, 2:29 PM EDT	Special Weather Statement	RLX	Barbour, Taylor	31 min
Jul 11, 2:40 PM EDT	Flash Flood Warning	RLX	Barbour, Randolph	2 hr
Jul 11, 7:31 PM EDT	Special Weather Statement	RLX	Tyler	29 min
Jul 11, 7:35 PM EDT	Special Weather Statement	RLX	Pleasants, Wood	55 min
Jul 11, 7:48 PM EDT	Special Weather Statement	RLX	Doddridge, Harrison, Taylor	27 min
Jul 11, 4:37 PM EDT	Special Weather Statement	RLX	Perry	23 min
Jul 11, 5:02 PM EDT	Severe Thunderstorm Warning	RLX	Perry	43 min
Jul 11, 5:35 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Morgan, Perry	40 min
Jul 11, 6:02 PM EDT	Special Weather Statement	RLX	Morgan	43 min
Jul 11, 6:22 PM EDT	Special Weather Statement	RLX	Vinton	53 min
Jul 11, 6:52 PM EDT	Special Weather Statement	RLX	Athens, Washington	23 min
Jul 11, 7:50 PM EDT	Special Weather Statement	RLX	Jackson	25 min
Jul 11, 7:54 AM EDT	Special Weather Statement	RLX	Lawrence	51 min
Jul 11, 11:39 AM EDT	Special Weather Statement	RLX	Carter	66 min

Nearby

Special Weather Statements in Ohio, 2019 Special Weather Statements in West Virginia, 2019 Every special weather statement in 2019

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.