Alert archive / West Virginia / Special Weather Statements in 2019

Special Weather Statement, NWS Charleston, WV

August 9, 2019Fayette County, West Virginia

NWS Charleston, WV issued this special weather statement at Aug 9, 2019, 3:40 PM EDT for Fayette County, West Virginia. It was in force for 35 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 9, 2019, 3:40 PM EDT (19:40 UTC)
Expired
Aug 9, 2019, 4:15 PM EDT
In force
35 min
Issued by
NWS Charleston, WV

County Fayette County, WV

The radar

The Charleston,WV radar (KRLX), 70 km from the middle of the area, began a volume at 19:39 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 12:00Z, 7.7 hours before the alert went out and 163 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 12:00Z on 2019-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 127 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2019-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 square meters per square second.1939587897117Sfc1 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
127 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
815 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
146 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 Aug 9, 2:48 PM EDT, 52 minutes earlier.

Area forecast discussion, Aug 9, 2:48 PM EDT, 52 minutes before
AREA FORECAST DISCUSSION
National Weather Service Charleston WV
248 PM EDT Fri Aug 9 2019

.SYNOPSIS...
Cold front exits south later this evening. High pressure this
weekend. Another front Tuesday, lingering through late
Wednesday.

&&

.NEAR TERM /THROUGH SATURDAY/...
As 205 PM Friday...

Cold front from NE WV down to SW VA will continue to move
southward and exits later this evening. Any showers or
thunderstorms will exit with it. Plenty of dry air will filter
in from north to south overnight. This will cool temperatures
down to forecast dewpoints and expect areas of fog to form
during the early morning hours of Saturday.

Fog should dissipate after sunrise, but areas that saw rain
this afternoon and evening could see fog linger a little longer.

High pressure will continue to build in behind the front tonight
and continue through the weekend. Providing sunny and pleasant
weather for Saturday.

&&

.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/...
As of 240 PM Friday...

The change in airmass will have a relatively short lifespan as
weak high pressure settles into the central Appalachians. It
will drop the dewpoints low enough for the temperatures to dip
into the upper 50s Saturday night, particularly across the
northern zones. A few waves running through the northwest flow
aloft will lack the moisture need to spark any sort of
convection, so the forecast remains dry in the short term.
Temperatures push back into the upper 80s for the lowlands from
airmass modification. Will see some increases in the column RH
Monday across the west ahead of the next frontal system for the
area.

&&

.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
As of 240 PM Friday...

Should expect the lower level flows to increase in response to a
deepening low pressure system heading into the southern Great
Lakes Monday night. This is going to end up another case where
there likely is not enough amplification in the 500mb flow to
get a clean push of the front through the CWA Tuesday. Expect
the front to stall out over the southern mountains with
recurring chances for storms from the time of arrival early
Tuesday morning into the Thursday time frame. Temperatures
remain on the warm side with some very slight modification once
the front finally clears the region. Upper level high over the
southern plains keep the summer time pattern going through mid
August in above normal temperatures.

&&

.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
As of 220 PM Friday...

Brief MVFR/IFR cigs/vsbys in showers and thunderstorms mainly
From HTS/CRW/BKW line and south. As a cold front pushes through
the area and exits south of the area this evening. MVFR/IFR/LIFR
cigs/vsbys are expected in fog and stratus after 04Z tonight and
dissipate after sunrise Saturday, especially in areas where it
rained.

VFR conditions are expected everywhere in the late morning hours
and for the rest of the forecast period.

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

FORECAST CONFIDENCE: High.

ALTERNATE SCENARIOS: Development and coverage of fog could
vary overnight 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       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    M
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    M    M
EKN CONSISTENCY  H    H    H    H    H    H    H    H    H    H    M    L
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 SATURDAY...
IFR possible in valley fog Sunday and Monday mornings.

&&

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

&&

SYNOPSIS...JS/26
NEAR TERM...JS
SHORT TERM...26
LONG TERM...26
AVIATION...JS
Hazardous weather outlook, Aug 9, 3:23 AM EDT, 12 hours 17 minutes before
Hazardous Weather Outlook
National Weather Service Charleston WV
323 AM EDT Fri Aug 9 2019

KYZ101>103-105-OHZ066-067-075-076-083>087-VAZ003-004-WVZ005>011-
013>020-024>034-039-040-515>526-100730-
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-
323 AM EDT Fri Aug 9 2019

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

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

No hazardous weather is expected at this time.

.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.

In the hours before

Local storm report, Aug 9, 3:18 PM EDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON WV
318 PM EDT FRI AUG 09 2019

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

0309 PM     HAIL             3 NW LOGAN              37.87N  82.02W
08/09/2019  E1.00 INCH       LOGAN              WV   PUBLIC

&&

EVENT NUMBER RLX1901889

JSH
Local storm report, Aug 9, 3:26 PM EDT, 14 minutes before
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Local storm report, Aug 9, 3:29 PM EDT, 11 minutes before
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Local storm report, Aug 9, 3:36 PM EDT, 4 minutes before
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Local storm report, Aug 9, 3:37 PM EDT, 3 minutes before
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Special weather statement, Aug 9, 3:40 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 8:00 PM EDTFlash Flood WarningRLXWood3 hr
Aug 9, 2:17 AM EDTFlash Flood WarningRLXGilmer, Lewis, Ritchie4 hr
Aug 9, 2:22 PM EDTSevere Thunderstorm WarningRLXFayette, Raleigh23 min
Aug 9, 2:32 PM EDTSpecial Weather StatementRLXLincoln28 min
Aug 9, 2:39 PM EDTSpecial Weather StatementRLXFayette36 min
Aug 9, 3:02 PM EDTSevere Thunderstorm WarningRLXLogan, Mingo28 min
Aug 9, 3:12 PM EDTSpecial Weather StatementRLXSummers33 min
Aug 9, 3:18 PM EDTSevere Thunderstorm WarningRLXLogan, McDowell, Mingo, Wyoming42 min
Aug 9, 3:57 PM EDTSpecial Weather StatementRLXMcDowell33 min
Aug 9, 4:28 PM EDTSpecial Weather StatementRLXFayette32 min
Aug 9, 6:28 PM EDTSpecial Weather StatementRLXRaleigh32 min
Aug 9, 6:32 PM EDTSpecial Weather StatementRLXLogan, Wyoming43 min

Nearby

Special Weather Statements in West Virginia, 2019Every 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.