Alert archive / West Virginia / Flood Watches in 2014

Flood Watch 4, NWS Charleston, WV

August 21, 20145 counties in West Virginia; 4 counties in Kentucky

NWS Charleston, WV issued this flood watch at Aug 21, 2014, 9:28 PM EDT for 5 counties in West Virginia; 4 counties in Kentucky. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Aug 21, 2014, 9:28 PM EDT (01:28 UTC)
Expired
Aug 22, 2014, 3:07 AM EDT
In force
6 hr
Issued by
NWS Charleston, WV
Flood severity
None

Counties Boyd County, KY, Carter County, KY, Greenup County, KY, Lawrence County, KY, Logan County, WV, McDowell County, WV, Mingo County, WV, Wayne County, WV, Wyoming County, WV

The radar

The Charleston,WV radar (KRLX), 64 km from the middle of the area, began a volume at 01:29 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 00:00Z, 1.5 hours before the alert went out and 203 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 00:00Z on 2014-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 536 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 00:00Z on 2014-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 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
536 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
772 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
234 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch 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 flood watch went out at Aug 21, 7:37 PM EDT, 1 hour 51 minutes earlier.

Area forecast discussion, Aug 21, 7:37 PM EDT, 1 hour 51 minutes before
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Hazardous weather outlook, Aug 21, 9:36 AM EDT, 11 hours 52 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON WV
936 AM EDT THU AUG 21 2014

KYZ101>103-105-OHZ083>087-VAZ003-004-WVZ005>008-013>016-024>027-
033>037-221345-
GREENUP-CARTER-BOYD-LAWRENCE KY-JACKSON OH-VINTON-MEIGS-GALLIA-
LAWRENCE OH-DICKENSON-BUCHANAN-WAYNE-CABELL-MASON-JACKSON WV-LINCOLN-
PUTNAM-KANAWHA-ROANE-MINGO-LOGAN-BOONE-CLAY-MCDOWELL-WYOMING-RALEIGH-
FAYETTE-NICHOLAS-
936 AM EDT THU AUG 21 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST
KENTUCKY...SOUTHEAST OHIO...SOUTHWEST VIRGINIA...CENTRAL WEST
VIRGINIA...SOUTHERN WEST VIRGINIA AND WESTERN WEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS THROUGH TONIGHT.
THE MAJOR THREAT WILL BE DAMAGING WINDS AND HAIL.

IN ADDITION...THERE IS A SLIGHT RISK FOR EXCESSIVE RAINFALL
THROUGH TONIGHT. LOCALLY HEAVY RAINFALL CAN BE ENOUGH RUNOFF TO
PRODUCE FLASH FLOODING...ESPECIALLY IF DOWNPOURS BECOME REPETITIVE
OVER THE SAME SMALL STREAM BASIN. A FLASH FLOOD WATCH WOULD BE
NEEDED IF CONFIDENCE IN TIMING AND LOCATION INCREASES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

ADDITIONAL ROUNDS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED INTO
THE WEEKEND...WITH HEAVY DOWNPOURS.

IF DOWNPOURS BECOME REPETITIVE OVER THE SAME SMALL STREAM
BASIN...FLASH FLOODING IS POSSIBLE. IF LARGER CLUSTERS OF SHOWERS
AND THUNDERSTORMS OCCUR...STRONG RISES CAN OCCUR EVEN ON
HEADWATER RIVERS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

OHZ066-067-075-076-WVZ009>011-017>020-028>032-038>040-046-047-221345-
PERRY-MORGAN-ATHENS-WASHINGTON-WOOD-PLEASANTS-TYLER-WIRT-CALHOUN-
RITCHIE-DODDRIDGE-BRAXTON-GILMER-LEWIS-HARRISON-TAYLOR-WEBSTER-
UPSHUR-BARBOUR-POCAHONTAS-RANDOLPH-
936 AM EDT THU AUG 21 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST OHIO...CENTRAL WEST
VIRGINIA AND NORTHERN WEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

THERE IS A SLIGHT RISK FOR EXCESSIVE RAINFALL THROUGH TONIGHT.
LOCALLY HEAVY RAINFALL CAN BE ENOUGH RUNOFF TO PRODUCE FLASH
FLOODING...ESPECIALLY IF DOWNPOURS BECOME REPETITIVE OVER THE SAME
SMALL STREAM BASIN. A FLASH FLOOD WATCH WOULD BE NEEDED IF
CONFIDENCE IN TIMING AND LOCATION INCREASES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

ADDITIONAL ROUNDS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED INTO
THE WEEKEND...WITH HEAVY DOWNPOURS.

IF DOWNPOURS BECOME REPETITIVE OVER THE SAME SMALL STREAM
BASIN...FLASH FLOODING IS POSSIBLE. IF LARGER CLUSTERS OF SHOWERS
AND THUNDERSTORMS OCCUR...STRONG RISES CAN OCCUR EVEN ON
HEADWATER RIVERS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Aug 21, 4:30 PM EDT, 4 hours 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
430 PM EDT THU AUG 21 2014

VAZ003-004-WVZ024-025-033>035-212330-
BUCHANAN VA-DICKENSON VA-LOGAN WV-MCDOWELL WV-MINGO WV-RALEIGH WV-
WYOMING WV-
430 PM EDT THU AUG 21 2014

...SPECIAL WEATHER STATEMENT FOR WYOMING...LOGAN...MCDOWELL...
MINGO...SOUTHERN RALEIGH...BUCHANAN AND DICKENSON COUNTIES UNTIL 730
PM EDT...

AT 425 PM EDT...THUNDERSTORMS WITH VERY HEAVY RAINFALL WERE MOVING
EAST SOUTHEAST FROM EASTERN KENTUCKY AND WILL AFFECT THE SOUTHERN
COAL FIELDS AND SOUTHERN MOUNTAINS OF WEST VIRGINIA...AND SOUTHWEST
VIRGINIA THROUGH 7 PM. RAINFALL RATES OF UP TO 1 INCH IN LESS THAN
AN HOUR ARE LIKELY WITH SOME OF THE STORMS. EXCESSIVE RUNOFF FROM
HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON SMALL CREEKS AND
STREAMS...AND PONDING OF WATER ON COUNTRY ROADS AND FARMLAND ALONG
THE BANKS OF CREEKS AND STREAMS.

THUNDERSTORMS WILL BE NEAR NAUGATUCK AROUND 430 PM...
CHATTAROY...MYRTLE...LENORE...AND WILLIAMSON AROUND 445
PM...DELBARTON...VARNEY...RED JACKET...AND MATEWAN AROUND 500 PM AND
PIE AROUND 515 PM.

THIS WILL IMPACT THE FOLLOWING INTERSTATE...THE WEST VIRGINIA
TURNPIKE BETWEEN MILE MARKERS 28 AND 29.

YOU MAY REPORT SIGNIFICANT WEATHER BY POSTING YOUR REPORT TO THE
CHARLESTON WEST VIRGINIA NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR
BY USING THE TWITTER HASHTAG...NWSRLX.

LAT...LON 3705 8250 3713 8255 3721 8255 3727 8235
      3753 8199 3755 8213 3759 8213 3768 8231
      3781 8241 3796 8208 3761 8106 3757 8120
      3727 8142 3720 8156 3719 8168 3723 8173
      3712 8200 3704 8205 3703 8217 3695 8236

05

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 3:07 AM EDTFlash Flood WatchRLXBarbour, Boone, Braxton, Cabell, Calhoun, Clay and 22 more25 hr
Aug 22, 3:16 AM EDTFlash Flood WarningRLXPleasants, Ritchie, Wirt, Wood3 hr
Aug 22, 1:41 PM EDTSpecial Weather StatementRLXBoone64 min
Aug 22, 2:49 PM EDTSpecial Weather StatementRLXBoone, Logan56 min
Aug 22, 3:48 PM EDTSpecial Weather StatementRLXLogan, McDowell, Mingo, Wyoming87 min
Aug 22, 4:25 PM EDTFlash Flood WarningRLXLincoln, Logan, McDowell, Mingo, Wyoming5 hr
Aug 22, 5:49 PM EDTSpecial Weather StatementRLXCabell, Wayne86 min
Aug 22, 6:15 PM EDTFlash Flood WarningRLXBoone, Cabell, Lincoln, Wayne3 hr
Aug 22, 7:52 PM EDTFlash Flood WarningRLXBoyd, Carter, Lawrence113 min

Nearby

Flood Watches in West Virginia, 2014Flood Watches in Kentucky, 2014Every flood watch in 2014

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.