Alert archive / West Virginia / Special Weather Statements in 2017

Special Weather Statement, NWS Charleston, WV

June 5, 20174 counties in West Virginia; Lawrence County, Ohio; 4 counties in Kentucky

NWS Charleston, WV issued this special weather statement at Jun 5, 2017, 6:27 PM EDT for 4 counties in West Virginia; Lawrence County, Ohio; 4 counties in Kentucky. It was in force for 63 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
Jun 5, 2017, 6:27 PM EDT (22:27 UTC)
Expired
Jun 5, 2017, 7:30 PM EDT
In force
63 min
Issued by
NWS Charleston, WV

Counties Boyd County, KY, Carter County, KY, Greenup County, KY, Lawrence County, KY, Lawrence County, OH, Cabell County, WV, Lincoln County, WV, Putnam County, WV, Wayne County, WV

The radar

The Jackson,KY radar (KJKL), 90 km from the middle of the area, began a volume at 22:30 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, 10.5 hours before the alert went out and 146 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, Cncnati-Daytn, OH at 12:00Z on 2017-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 355 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, Cncnati-Daytn, OH at 12:00Z on 2017-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.19395878Sfc1 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
355 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
1109 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
12 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 Jun 5, 2:25 PM EDT, 4 hours 2 minutes earlier.

Area forecast discussion, Jun 5, 2:25 PM EDT, 4 hours 2 minutes before
Area Forecast Discussion
National Weather Service Charleston WV
225 PM EDT Mon Jun 5 2017

.SYNOPSIS...
A cold front will move through the area tonight. Scattered
showers accompany an upper level low through much of the
workweek. A brief break in showers on Friday before the next
system enters the region.

&&

.NEAR TERM /THROUGH TUESDAY/...
As of 145 PM Monday...

Plenty of moisture remains across the forecast area this
afternoon. Rainfall amount of over 3 inches in some locations in
Fayette and Raleigh counties have been reported causing some
flooding. While no mid morning thunderstorms have occurred, do
anticipate the possibility of a storm or two later this
afternoon and evening. Convection is forming along and ahead of
a cold front. Any storm that does form will be capable of
strong wind gusts and heavy rainfall.

The cold front will sink south later this evening into the overnight
hours. While the moderate to heavy rain will end, showers will
linger. An upper low will remain in place through this period.
Low clouds and cooler high temperatures will occur tomorrow.
Highs will only climb into the mid 60s in the higher elevations
with lower 70s in the lowlands.

&&

.SHORT TERM /TUESDAY NIGHT THROUGH FRIDAY/...

As of 225 PM Monday...

5h low spins out in vicinity of forecast area throughout the
period. Models in general agreement with overall synoptic
pattern, with best dynamics and moisture hanging well offshore
along the Eastern seaboard. By Friday, upper level low begins to
scoot northeastward toward New England as high pressure builds
in from the west. Generally below normal temps with chance pops
will be the rule through Friday. Vort lobes will spin about the
main upper low, and the models are showing some differences in
handling these smaller scale features. For consistancy sake,
stayed close to model blend for the entrire forecast period.

&&

.LONG TERM /FRIDAY THROUGH MONDAY/...
As of 225 PM Monday...

5h ridge build into the eastern US with southwest flow regime
developing. Gulf moisture remains well south of the forecast
area. Blended model values looked fine for this forecast period.

&&

.AVIATION /19Z MONDAY THROUGH SATURDAY/...
As of 145 PM Monday...

Continued showers at most TAF sites are leading to MVFR and IFR
conditions. This is expected to continue through the next few
hours. A cold front is approaching from the northwest during the
afternoon hours. Additional showers and possibility a
thunderstorm or two will occur with the front. Any storm that
does form will be capable of gusty winds and IFR conditions with
heavy rain.

The cold front will move south of the area overnight. Plenty of
low level moisture will linger. The result will be a low
stratus cloud deck with MVFR and IFR conditions for the TAF
duration.

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

FORECAST CONFIDENCE: Medium.

ALTERNATE SCENARIOS: Increased coverage of storms are possible
resulting in lower ceilings and visibilities. Decreased clouds
overnight may mean higher ceilings.

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  L    H    H    H    H    H    H    H    H    M    M    L
HTS CONSISTENCY  H    H    H    M    H    H    H    H    H    M    M    L
BKW CONSISTENCY  L    L    H    H    H    H    H    H    H    M    M    L
EKN CONSISTENCY  H    H    H    H    H    H    L    L    M    H    H    L
PKB CONSISTENCY  H    H    H    H    H    H    H    H    H    M    M    M
CKB CONSISTENCY  H    H    H    H    H    H    H    H    H    M    H    L

AFTER 18Z TUESDAY...

IFR conditions are possible on Tuesday with scattered showers.

&&

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

&&

SYNOPSIS...JB
NEAR TERM...JB
SHORT TERM...KMC
LONG TERM...KMC
AVIATION...JB
Hazardous weather outlook, Jun 5, 2:45 AM EDT, 15 hours 42 minutes before
Hazardous Weather Outlook
National Weather Service Charleston WV
245 AM EDT Mon Jun 5 2017

VAZ003-004-WVZ033-034-515>526-060645-
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-
245 AM EDT Mon Jun 5 2017

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.

No hazardous weather is expected at this time.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

KYZ101>103-105-OHZ066-067-075-076-083>087-WVZ005>011-013>020-024>032-
039-040-060645-
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-
245 AM EDT Mon Jun 5 2017

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 marginal risk of severe thunderstorms this afternoon and
evening. Damaging winds are the primary threat.

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

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

In the hours before

Special weather statement, Jun 5, 3:39 PM EDT, 2 hours 48 minutes before
Special Weather Statement
National Weather Service Charleston WV
339 PM EDT MON JUN 5 2017

KYZ101-102-052045-
Greenup-Carter-
339 PM EDT MON JUN 5 2017

...A STRONG THUNDERSTORM WILL AFFECT GREENUP AND NORTHEASTERN CARTER
COUNTIES...

At 339 PM EDT, a strong thunderstorm was located over Letitia, or 8
miles south of Portsmouth, moving south at 20 mph.

Winds in excess of 30 mph and half inch hail are possible with this
storm.

Locations impacted include...
Grayson, Greenup, Load, Gesling, Greenbo Lake, Oldtown, Letitia,
Franklin Furnace, Carter, South Shore, Hopewell, Brushart, Haverhill,
Warnock, Grays Branch and South Portsmouth.

This includes Interstate 64 in Kentucky between mile markers 172 and
173.

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

LAT...LON 3847 8319 3849 8319 3855 8310 3859 8307
      3863 8307 3864 8305 3866 8305 3868 8303
      3873 8303 3872 8298 3874 8294 3875 8288
      3873 8287 3869 8288 3866 8286 3860 8285
      3857 8281 3847 8280 3834 8292 3845 8321
TIME...MOT...LOC 1939Z 350DEG 18KT 3864 8299

13
Special weather statement, Jun 5, 4:23 PM EDT, 2 hours 4 minutes before
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Local storm report, Jun 5, 4:41 PM EDT, 1 hour 46 minutes before
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Special weather statement, Jun 5, 5:04 PM EDT, 1 hour 23 minutes before
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Special weather statement, Jun 5, 6:19 PM EDT, 8 minutes before
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Special weather statement, Jun 5, 6:27 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
Jun 5, 10:21 AM EDTSpecial Weather StatementRLXFayette, Raleigh114 min
Jun 5, 11:16 AM EDTAreal Flood WarningRLXFayette7 hr
Jun 5, 11:49 AM EDTAreal Flood WarningRLXRaleigh5 hr
Jun 5, 12:21 PM EDTSpecial Weather StatementRLXWyoming114 min
Jun 5, 12:38 PM EDTSpecial Weather StatementRLXWyoming97 min
Jun 5, 2:24 PM EDTSpecial Weather StatementRLXLogan, Wyoming111 min
Jun 5, 3:20 PM EDTSpecial Weather StatementRLXBoone25 min
Jun 5, 5:04 PM EDTSpecial Weather StatementRLXPleasants, Ritchie, Wood56 min
Jun 5, 6:19 PM EDTSpecial Weather StatementRLXDoddridge, Pleasants, Ritchie, Tyler, Wirt, Wood26 min
Jun 5, 4:23 PM EDTSpecial Weather StatementRLXJackson52 min
Jun 5, 3:39 PM EDTSpecial Weather StatementRLXGreenup66 min
Jun 5, 3:57 PM EDTFlash Flood WarningRLXGreenup2 hr

Nearby

Special Weather Statements in West Virginia, 2017Special Weather Statements in Kentucky, 2017Special Weather Statements in Ohio, 2017Every special weather statement in 2017

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.