Alert archive / West Virginia / Areal Flood Warnings in 2011

Areal Flood Warning 32, NWS Charleston, WV

September 6, 2011Gilmer County, Lewis County, West Virginia

NWS Charleston, WV issued this areal flood warning at Sep 6, 2011, 10:36 AM EDT for Gilmer County, Lewis County, West Virginia. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 6, 2011, 10:36 AM EDT (14:36 UTC)
Expired: Sep 6, 2011, 1:30 PM EDT
In force: 3 hr
Issued by: NWS Charleston, WV
Area: Storm-based polygon
Flood severity: None

Counties Gilmer County, WV, Lewis County, WV

The radar

The Charleston,WV radar (KRLX), 116 km from the middle of the area, began a volume at 14:37 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, 2.6 hours before the alert went out and 221 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: 3 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 458 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 451 m²/s²
0-3 km storm-relative helicity: 664 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning 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 areal flood warning went out at Sep 6, 6:48 AM EDT, 3 hours 48 minutes earlier.

Area forecast discussion, Sep 6, 6:48 AM EDT, 3 hours 48 minutes before

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Hazardous weather outlook, Sep 6, 4:16 AM EDT, 6 hours 20 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON WV
416 AM EDT TUE SEP 6 2011

OHZ066-067-075-076-083-084-070830-
PERRY-MORGAN-ATHENS-WASHINGTON-JACKSON-VINTON-
416 AM EDT TUE SEP 6 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST OHIO.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

KYZ101>103-105-OHZ085>087-VAZ003-004-WVZ005>011-013>020-024>040-046-
047-070830-
GREENUP-CARTER-BOYD-LAWRENCE-MEIGS-GALLIA-DICKENSON-BUCHANAN-WAYNE-
CABELL-MASON-JACKSON-WOOD-PLEASANTS-TYLER-LINCOLN-PUTNAM-KANAWHA-
ROANE-WIRT-CALHOUN-RITCHIE-DODDRIDGE-MINGO-LOGAN-BOONE-CLAY-BRAXTON-
GILMER-LEWIS-HARRISON-TAYLOR-MCDOWELL-WYOMING-RALEIGH-FAYETTE-
NICHOLAS-WEBSTER-UPSHUR-BARBOUR-POCAHONTAS-RANDOLPH-
416 AM EDT TUE SEP 6 2011

...FLASH FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST
KENTUCKY...SOUTHEAST OHIO...SOUTHWEST VIRGINIA AND MUCH OF WEST
VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   FLASH FLOOD WATCH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   FLASH FLOOD WATCH.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Special weather statement, Sep 6, 4:59 AM EDT, 5 hours 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
459 AM EDT TUE SEP 6 2011

OHZ067-075-076-061045-
ATHENS OH-MORGAN OH-WASHINGTON OH-
459 AM EDT TUE SEP 6 2011

...SHOWERS WILL AFFECT ATHENS...MORGAN AND WASHINGTON COUNTIES...

AT 438 AM EDT...LIGHT TO MODERATE RAIN WAS WAS OVER THE THE REGION
AND WAS MOVING NORTHEAST AT 55 MPH.

THIS RAIN COULD BE HEAVY AT TIMES...AND WILL CAUSE WATER TO POND ON
ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL
STREAMS...ESPECIALLY ALONG ISLAND RUN...MANS CREEK AND SUNDAY CREEK.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON
SMALL CREEKS AND STREAMS...AND PONDING OF WATER IN URBAN
AREAS...HIGHWAYS...STREETS AND UNDERPASSES...PONDING OF WATER ON
COUNTRY ROADS AND FARMLAND ALONG THE BANKS OF CREEKS AND
STREAMS...AS WELL AS OTHER POOR DRAINAGE AREAS AND LOW LYING SPOTS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3976 8164 3959 8159 3959 8148 3965 8146
      3957 8126 3957 8104 3939 8121 3934 8137
      3941 8146 3927 8157 3927 8168 3918 8176
      3921 8227 3947 8228 3947 8217 3956 8216
      3955 8204 3972 8203 3973 8208 3977 8207

21

Local storm report, Sep 6, 8:13 AM EDT, 2 hours 23 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 6, 5:13 PM EDT	Areal Flood Warning	RLX	Barbour, Pocahontas, Randolph, Taylor	3 hr
Sep 6, 4:59 AM EDT	Special Weather Statement	RLX	Athens, Morgan, Washington	106 min

Nearby

Areal Flood Warnings in West Virginia, 2011 Every areal flood warning in 2011

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.