Alert archive / Virginia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 79, NWS Charleston, WV

April 9, 2011McDowell County, West Virginia; Buchanan County, Dickenson County, Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Apr 9, 2011, 3:40 PM EDT for McDowell County, West Virginia; Buchanan County, Dickenson County, Virginia. It was in force for 65 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 9, 2011, 3:40 PM EDT (19:40 UTC)
Expired: Apr 9, 2011, 4:45 PM EDT
In force: 65 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon

Counties Buchanan County, VA, Dickenson County, VA, McDowell County, WV

The radar

The Jackson,KY radar (KJKL), 125 km from the middle of the area, began a volume at 19:42 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.

What was reported inside it

Time	Report	Where	Remark
Apr 9, 4:00 PM EDT	TSTM WND DMG	4 Nw Grundy, VA	TREES AND POWERLINES DOWN...ROOF RIPPED OFF OF AN ABANDONED BUILDING

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 20 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 9, 12:34 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 9, 2:00 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 7.7 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: 13 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 460 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 191 m²/s²
0-3 km storm-relative helicity: 271 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

858 
WUUS51 KRLX 091940
SVRRLX
VAC027-051-WVC047-092045-
/O.NEW.KRLX.SV.W.0079.110409T1940Z-110409T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
340 PM EDT SAT APR 9 2011

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BUCHANAN COUNTY IN VIRGINIA...
  THIS INCLUDES THE CITIES OF...GRUNDY...DAVENPORT...
  DICKENSON COUNTY IN VIRGINIA...
  THIS INCLUDES THE CITIES OF...JOHN FLANNAGAN LAKE...HAYSI...
  CLINTWOOD...BREAKS INTERSTATE PARK...
  MCDOWELL COUNTY IN WEST VIRGINIA...

* UNTIL 445 PM EDT

* AT 337 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM 18 MILES NORTHWEST OF
  BREAKS INTERSTATE PARK TO 13 MILES NORTHWEST OF CLINTWOOD TO 20
  MILES WEST OF CLINTWOOD...OR ALONG A LINE EXTENDING FROM PIKEVILLE
  TO 12 MILES SOUTH OF PIKEVILLE TO 6 MILES NORTH OF WHITESBURG...AND
  MOVING SOUTHEAST AT 50 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BIG
  ROCK...TRAMMEL...WAR AND GARY.

.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR CENTRAL KENTUCKY AND CENTRAL VIRGINIA AND CENTRAL WEST VIRGINIA.

&&

LAT...LON 3703 8248 3713 8255 3721 8255 3727 8235
      3751 8201 3737 8135 3727 8142 3724 8149
      3720 8156 3719 8167 3723 8173 3720 8176
      3713 8192 3712 8200 3704 8204 3703 8218
      3695 8235
TIME...MOT...LOC 1940Z 300DEG 48KT 3747 8247 3730 8254
          3718 8277

$$

30

2 follow-up statements

516 
WWUS51 KRLX 092023
SVSRLX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
423 PM EDT SAT APR 9 2011

VAC051-092033-
/O.CAN.KRLX.SV.W.0079.000000T0000Z-110409T2045Z/
DICKENSON VA-
423 PM EDT SAT APR 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR DICKENSON COUNTY IS
CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR CENTRAL KENTUCKY AND CENTRAL VIRGINIA AND CENTRAL WEST VIRGINIA.

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

LAT...LON 3712 8216 3717 8221 3732 8228 3751 8201
      3737 8135 3727 8142 3724 8149 3720 8156
      3719 8168 3723 8173 3720 8176 3713 8192
      3712 8200 3704 8204 3704 8212
TIME...MOT...LOC 2023Z 300DEG 48KT 3718 8185 3701 8192
          3689 8215

$$

VAC027-WVC047-092045-
/O.CON.KRLX.SV.W.0079.000000T0000Z-110409T2045Z/
BUCHANAN VA-MCDOWELL WV-
423 PM EDT SAT APR 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR MCDOWELL AND BUCHANAN COUNTIES...

AT 422 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM OAKWOOD TO 10 MILES SOUTH OF
OAKWOOD TO 14 MILES SOUTH OF DAVENPORT...OR ALONG A LINE EXTENDING
FROM 7 MILES NORTHWEST OF RICHLANDS TO 9 MILES SOUTHWEST OF RICHLANDS
TO LEBANON...MOVING SOUTHEAST AT 55 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
COALWOOD...WAR...CUCUMBER...GARY...ELBERT...ANAWALT AND JENKINJONES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR CENTRAL KENTUCKY AND CENTRAL VIRGINIA AND CENTRAL WEST VIRGINIA.

&&

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

LAT...LON 3712 8216 3717 8221 3732 8228 3751 8201
      3737 8135 3727 8142 3724 8149 3720 8156
      3719 8168 3723 8173 3720 8176 3713 8192
      3712 8200 3704 8204 3704 8212
TIME...MOT...LOC 2023Z 300DEG 48KT 3718 8185 3701 8192
          3689 8215

$$

TAX

687 
WWUS51 KRLX 092039
SVSRLX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
439 PM EDT SAT APR 9 2011

VAC027-WVC047-092049-
/O.EXP.KRLX.SV.W.0079.000000T0000Z-110409T2045Z/
BUCHANAN VA-MCDOWELL WV-
439 PM EDT SAT APR 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR MCDOWELL AND BUCHANAN COUNTIES
WILL EXPIRE AT 445 PM EDT...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE STORM WHICH
PROMPTED THE SEVERE THUNDERSTORM WARNING HAS MOVED OUT OF THE WARNED
AREA. THEREFORE...THE WARNING HAS BEEN ALLOWED TO EXPIRE. OTHER
STORMS IN THE AREA COULD PRODUCE GUSTY WINDS AND PEA SIZE HAIL.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING
FOR CENTRAL KENTUCKY AND CENTRAL VIRGINIA AND CENTRAL WEST VIRGINIA.

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

LAT...LON 3712 8216 3717 8221 3732 8228 3751 8201
      3737 8135 3727 8142 3724 8149 3720 8156
      3719 8168 3723 8173 3720 8176 3713 8192
      3712 8200 3704 8204 3704 8212
TIME...MOT...LOC 2039Z 300DEG 48KT 3633 8220 3616 8228
          3606 8253

$$

TAX

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Apr 9, 3:24 PM EDT, 16 minutes earlier.

Area forecast discussion, Apr 9, 3:24 PM EDT, 16 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON WV
324 PM EDT SAT APR 9 2011

.SYNOPSIS...
A WARM FRONT MOVES NORTH THROUGH THE AREA TONIGHT.  A WARM SOUTHWEST
FLOW IN ITS WAKE PREVAILS INTO MONDAY...WHEN A COLD FRONT CROSSES.
HIGH PRESSURE CROSSES TUESDAY THROUGH WEDNESDAY.

&&

.NEAR TERM /THROUGH SUNDAY/...
STRONG MCV RIDING ALONG AND SOUTH OF WARM FRONT...DRAPED ACROSS
CENTRAL WEST VIRGINIA THIS AFTERNOON...WILL EXIT THE AREA EARLY
TONIGHT. THIS IS THE CAUSE OF THE TORNADO WATCH THAT WILL EXPIRE
EARLY THIS EVENING ACROSS THE SOUTHERN HALF OF THE AREA. WITH STRONG
UPPER RIDGE BUILDING OVER THE AREA BEHIND THIS FEATURE... THE WARM
FRONT WILL PROGRESS NORTHWARD THROUGH THE NORTHERN PART OF THE AREA
TONIGHT.

THIS WILL LEAVE A MOIST LOW LEVEL BOUNDARY LAYER...WET GROUND...AND
ENOUGH DECOUPLING OF THE WINDS...TO ALLOW FOG FORMATION...ESPECIALLY
IN AREAS THAT RECEIVE RAIN. WITH FOG AND LOW CLOUDS
REFORMING...EXPECT TEMPERATURES TO BE VERY MUCH ON THE HIGH SIDE
GUIDANCE TONIGHT.

FOR SUNDAY...FIRMLY IN THE WARM SECTOR WITH A BRISK SOUTHWEST
BREEZE TO BOOST TEMPERATURES WELL INTO THE 80S. LOW CLOUDS AND FOG
WILL MIX OUT FOR PERIODS OF SUNSHINE. HOWEVER...WITH WARMING ALOFT
WITHIN THE BUILDING UPPER RIDGE...CONVECTION NOT EXPECTED SUNDAY.

&&

.SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/...
NO WHOLESALE CHANGES IN THE SHORT TERM...AS WE ARE STILL ON TRACK
FOR COLD FROPA MONDAY. ONE QUESTION THAT REMAINS IS THE TIMING OF
THE ACTUAL PASSAGE...AND WHETHER IT WILL TRIGGER SEVERE
THUNDERSTORMS OR NOT. CURRENTLY SPC HAS NORTHERN WV DRAWN INTO A
SLIGHT RISK OF SEVERE ON DAY 3. IF THE PASSAGE OCCURS DURING MAXIMUM
DAYTIME HEATING...COULD SEE THE THREAT OF STRONG STORMS TO EXPAND
SOUTH OVER CWA.

ONE FACTOR WORKING AGAINST THE THREAT OF STRONG THUNDERSTORMS MONDAY
IS THE HIGH PWS IN THE GUIDANCE. 12Z NAM HAS A RIBBON OF 1.5 TO 1.7
INCH PWS PUSHING THROUGH THE CWA ALONG THE BOUNDARY. THIS RAISES THE
CONCERN OF POSSIBLE WATER ISSUES MONDAY AS THE SOUTHERN PORTIONS OF
THE CWA ARE FAIRLY WET...AND CURRENT FFG IS RUNNING AROUND 1 TO 1.5
INCHES IN THIS AREA. WILL NEED TO MONITOR THE WATER SITUATION
CLOSELY.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
USED HPC GUIDANCE FOR THE EXTENDED PERIOD. ONLY MINOR TWEAKS WERE
MADE.

DRY WEATHER WILL START THIS PERIOD WITH HIGH PRESSURE IN CONTROL. AS
THE HIGH SHIFTS EAST...THE NEXT SYSTEM MOVES NORTHEAST OUT OF THE
SOUTHERN PLAINS. MODELS SHOW THIS NEXT SYSTEM HEADS TOWARD THE
REGION LATE IN THE WEEK. WILL HAVE TO MONITOR AS THE WEEK PROGRESSES
AS THIS COULD MEAN ANOTHER CHANCE FOR STRONG STORMS BY THE END OF
THE WEEK. AT THIS TIME...WILL KEEP THUNDERSTORMS IN AND TWEAK AS THE
SYSTEM DEVELOPS.

&&

.AVIATION /20Z SATURDAY THROUGH THURSDAY/...
15Z SATURDAY THRU 12Z SUNDAY...
AREAS OF LOW CLOUD AND FOG ASSOCIATED WITH A WARM FRONT AND...IN
SOME AREAS...A RESULT OF RAIN FRI AND LAST NT...IS CURRENTLY MIXING
OUT THIS MORNING ALONG AND SOUTH OF THE I64 CORRIDOR AS THE WARM
FRONT LIFTS SLOWLY NORTH. LOW CLOUDS WILL BE SLOWER TO ERODE IN THE NORTH.

A SQUALL LINE CURRENTLY OVER SOUTHERN INDIANA AND NORTH CENTRAL
KENTUCKY WILL MOVE EAST ACROSS NORTHEAST KY...SOUTH HALF OF WV AND
SW VA THIS AFTERNOON. THESE STORMS WILL LIKELY BE ON THE STRONG
SIDE...A FEW POSSIBLY SEVERE. SOME SHOWERS WITH EMBEDDED THUNDER
FURTHER NORTH THIS AFTERNOON TO THE NORTH OF THE WARM FRONT.

EXPECT GRADUAL IMPROVEMENT FROM THE SOUTH...OUTSIDE SHOWERS AND
THUNDERSTORMS...TO VFR CEILINGS THIS AFTERNOON...LAST TO IMPROVE IN
THE NORTH.

THE THUNDERSTORM ACTIVITY WILL MOVE OUT OF THE AREA THIS EVENING.
AREAS OF IFR LOW CLOUD AND FOG TONIGHT...MAINLY IN AREAS THAT
RECEIVE THE RAIN THIS AFTERNOON.

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

FORECAST CONFIDENCE: LOW TO MEDIUM.

ALTERNATE SCENARIOS: TIMING AND AREAL EXTENT OF THE FOG AND STRATUS
AND ITS EVAPORATION IS IN QUESTION.  ALSO IN QUESTION IS TIMING AND
PLACEMENT OF CONVECTION.

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       20   21   22   23   00   01   02   03   04   05   06   07
EDT 1HRLY       16   17   18   19   20   21   22   23   00   01   02   03
CRW CONSISTENCY  L    L    M    H    L    H    L    M    L    L    L    L
HTS CONSISTENCY  M    M    M    M    M    M    L    L    M    L    L    L
BKW CONSISTENCY  M    L    M    M    M    L    L    H    L    M    L    L
EKN CONSISTENCY  M    L    L    L    M    M    H    H    M    L    L    L
PKB CONSISTENCY  H    M    M    M    H    H    L    M    M    L    L    L
CKB CONSISTENCY  M    H    M    M    M    H    L    L    L    L    L    L

AFTER 18Z SUNDAY...
IFR CONDITIONS POSSIBLE ACROSS SOUTHERN SITES AFTER THUNDERSTORMS
OVERNIGHT SAT NT.  IFR POSSIBLE IN BRIEF SHOWERS AND THUNDERSTORMS
ON MONDAY.

&&

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

&&

SYNOPSIS...JB/JMV/TAX
NEAR TERM...JMV
SHORT TERM...TAX
LONG TERM...JB
AVIATION...JMV

Hazardous weather outlook, Apr 9, 5:05 AM EDT, 10 hours 35 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON WV
505 AM EDT SAT APR 9 2011

KYZ101>103-105-OHZ083-086-087-VAZ003-004-WVZ005>008-013>016-024>027-
033>037-100915-
GREENUP-CARTER-BOYD-LAWRENCE-JACKSON-GALLIA-DICKENSON-BUCHANAN-WAYNE-
CABELL-MASON-LINCOLN-PUTNAM-KANAWHA-ROANE-MINGO-LOGAN-BOONE-CLAY-
MCDOWELL-WYOMING-RALEIGH-FAYETTE-NICHOLAS-
505 AM EDT SAT APR 9 2011

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 CHANCE OF SEVERE THUNDERSTORMS TODAY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

STRONG TO POSSIBLY SEVERE THUNDERSTORMS COULD AFFECT THE AREA
MONDAY AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

OHZ066-067-075-076-084-085-WVZ009>011-017>020-028>032-038>040-046-
047-100915-
PERRY-MORGAN-ATHENS-WASHINGTON-VINTON-MEIGS-WOOD-PLEASANTS-TYLER-
WIRT-CALHOUN-RITCHIE-DODDRIDGE-BRAXTON-GILMER-LEWIS-HARRISON-TAYLOR-
WEBSTER-UPSHUR-BARBOUR-POCAHONTAS-RANDOLPH-
505 AM EDT SAT APR 9 2011

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

.DAY ONE...TODAY AND TONIGHT.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

STRONG TO POSSIBLY SEVERE THUNDERSTORMS COULD AFFECT THE AREA
MONDAY AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Apr 9, 2:40 PM EDT, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON, WV
240 PM EDT SAT APR 09 2011

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

0230 PM     HAIL             WILLIAMSON              37.67N  82.28W
04/09/2011  E1.00 INCH       MINGO              WV   CO-OP OBSERVER

&&

EVENT NUMBER RLX1100420

TAX

Special weather statement, Apr 9, 3:18 PM EDT, 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
318 PM EDT SAT APR 9 2011

KYZ105-WVZ005-013>015-024>026-033>036-091945-
BOONE WV-FAYETTE WV-KANAWHA WV-LAWRENCE KY-LINCOLN WV-LOGAN WV-
MCDOWELL WV-MINGO WV-PUTNAM WV-RALEIGH WV-WAYNE WV-WYOMING WV-
318 PM EDT SAT APR 9 2011

...STRONG THUNDERSTORMS WILL AFFECT
BOONE...KANAWHA...LINCOLN...LOGAN...MCDOWELL...MINGO...RALEIGH...SOUT
HEASTERN LAWRENCE...SOUTHERN PUTNAM...SOUTHERN WAYNE...WESTERN
FAYETTE AND WYOMING COUNTIES...

AT 309 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 6 MILES NORTH OF
LOGAN...MOVING EAST AT 55 MPH.

VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

THIS STORM WILL BE NEAR VAN AROUND 325 PM...PRENTER AROUND 330 PM...
SYLVESTER AROUND 335 PM...LEEWOOD AROUND 340 PM AND POWELLTON AROUND
345 PM.

THIS WILL IMPACT THE FOLLOWING INTERSTATES...I-64 BETWEEN MILE
MARKERS 46 AND 57 IN WEST VIRGINIA...I-64 NEAR BECKLEY BETWEEN MILE
MARKERS 120 AND 135...I-77 BETWEEN MILE MARKERS 96 AND 114 IN WEST
VIRGINIA...I-79 BETWEEN MILE MARKERS 1 AND 7...THE WEST VIRGINIA
TURNPIKE BETWEEN MILE MARKERS 32 AND 95.

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 AS WELL AS OTHER POOR DRAINAGE
AREAS AND LOW LYING SPOTS.

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.

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 3747 8200 3752 8194 3754 8197 3753 8205
      3756 8211 3773 8233 3775 8233 3781 8240
      3790 8244 3790 8248 3795 8252 3795 8256
      3792 8258 3797 8265 3853 8164 3785 8085
      3782 8093 3780 8091 3721 8167

14

Local storm report, Apr 9, 3:33 PM EDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON, WV
333 PM EDT SAT APR 09 2011

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

0230 PM     HAIL             2 NE WILLIAMSON         37.69N  82.25W
04/09/2011  E1.00 INCH       MINGO              WV   911 CALL CENTER

&&

EVENT NUMBER RLX1100421

JC

Local storm report, Apr 9, 3:34 PM EDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON, WV
334 PM EDT SAT APR 09 2011

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

0330 PM     HAIL             CHIEF LOGAN STATE PARK  37.89N  82.01W
04/09/2011  E0.88 INCH       LOGAN              WV   PARK SERVICE

&&

EVENT NUMBER RLX1100422

JC

Local storm report, Apr 9, 3:37 PM EDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON, WV
337 PM EDT SAT APR 09 2011

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

0250 PM     HAIL             5 SW LOGAN              37.80N  82.05W
04/09/2011  E1.75 INCH       LOGAN              WV   PUBLIC

&&

EVENT NUMBER RLX1100423

JC

Local storm report, Apr 9, 3:39 PM EDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON, WV
339 PM EDT SAT APR 09 2011

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

0245 PM     HAIL             GRUNDY                  37.28N  82.10W
04/09/2011  E2.00 INCH       BUCHANAN           VA   PUBLIC

&&

EVENT NUMBER RLX1100424

JC

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 8:05 PM EDT	Severe Thunderstorm Warning	RLX	Logan, McDowell, Mingo, Wyoming	55 min
Apr 8, 8:10 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Fayette, Kanawha, Raleigh	35 min
Apr 8, 8:24 PM EDT	Severe Thunderstorm Warning	RLX	Lincoln, Logan, Mingo, Wayne	36 min
Apr 8, 8:31 PM EDT	Severe Thunderstorm Warning	RLX	Wayne	44 min
Apr 8, 8:47 PM EDT	Severe Thunderstorm Warning	RLX	Logan, Mingo	25 min
Apr 8, 8:54 PM EDT	Severe Thunderstorm Warning	RLX	McDowell, Wyoming	51 min
Apr 8, 9:03 PM EDT	Severe Thunderstorm Warning	RLX	Logan, McDowell, Mingo, Wyoming	42 min
Apr 8, 10:07 PM EDT	Special Weather Statement	RLX	McDowell, Mingo, Wyoming	68 min
Apr 9, 1:27 PM EDT	Severe Thunderstorm Warning	RLX	Wayne	48 min
Apr 9, 2:11 PM EDT	Severe Thunderstorm Warning	RLX	Cabell, Lincoln, Logan, Wayne	64 min
Apr 9, 2:18 PM EDT	Severe Thunderstorm Warning	RLX	McDowell	57 min
Apr 9, 2:21 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Logan, Mingo	54 min
Apr 9, 2:43 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Logan, McDowell, Mingo, Raleigh, Wyoming	62 min
Apr 9, 3:15 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Kanawha, Lincoln, Logan	29 min
Apr 9, 3:18 PM EDT	Special Weather Statement	RLX	Boone, Fayette, Kanawha, Lincoln, Logan, McDowell and 3 more	27 min
Apr 9, 3:49 PM EDT	Special Weather Statement	RLX	Boone, Fayette, Kanawha, Lincoln, Logan, Mingo and 3 more	86 min
Apr 9, 4:08 PM EDT	Special Weather Statement	RLX	Raleigh, Wyoming	52 min
Apr 9, 4:18 PM EDT	Flash Flood Warning	RLX	Boone, Lincoln, Logan	4 hr
Apr 9, 4:26 PM EDT	Flash Flood Warning	RLX	Wyoming	2 hr
Apr 9, 4:30 PM EDT	Severe Thunderstorm Warning	RLX	McDowell, Raleigh, Wyoming	30 min
Apr 8, 10:52 PM EDT	Special Weather Statement	RLX	Buchanan, Dickenson	53 min
Apr 8, 11:45 PM EDT	Special Weather Statement	RLX	Dickenson	30 min
Apr 9, 12:03 AM EDT	Severe Thunderstorm Warning	RLX	Buchanan, Dickenson	42 min
Apr 9, 1:57 PM EDT	Special Weather Statement	RLX	Buchanan	63 min
Apr 9, 3:54 PM EDT	Special Weather Statement	RLX	Buchanan, Dickenson	66 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2011 Severe Thunderstorm Warnings in West Virginia, 2011 Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.