Alert archive / Virginia / Special Weather Statements in 2011

Special Weather Statement, NWS Charleston, WV

July 11, 2011McDowell County, West Virginia; Buchanan County, Dickenson County, Virginia

NWS Charleston, WV issued this special weather statement at Jul 11, 2011, 7:46 PM EDT for McDowell County, West Virginia; Buchanan County, Dickenson County, Virginia. It was in force for 59 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: Jul 11, 2011, 7:46 PM EDT (23:46 UTC)
Expired: Jul 11, 2011, 8:45 PM EDT
In force: 59 min
Issued by: NWS Charleston, WV

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 23:47 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, 11.8 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: 664 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 644 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

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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 Jul 11, 2:41 PM EDT, 5 hours 5 minutes earlier.

Area forecast discussion, Jul 11, 2:41 PM EDT, 5 hours 5 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON WV
241 PM EDT MON JUL 11 2011

.SYNOPSIS...
A WEAK COLD FRONT PUSHES SOUTHWARD TONIGHT AND TUESDAY. ANOTHER COLD
FRONT PUSHES THROUGH ON WEDNESDAY. HIGH PRESSURE ON THURSDAY.

&&

.NEAR TERM /THROUGH TUESDAY/...
THUNDERSTORM COMPLEX PUSHES THROUGH THIS EVENING. HIGH
CAPES...GOOD SHEAR...AND INSTABILITY WILL COMBINE TO ALLOW
SUSTAINMENT OF MCS AS IT TRANSITIONS SWD ACROSS THE CWA. EXPECT
THIS SYSTEM TO BE MAINLY A WIND AND LIGHTNING PRODUCER...WITH
LOCALLY HEAVY DOWNPOURS. FREEZING LEVELS REMAIN QUITE HIGH...UP
AROUND 15KFT AND MAY KEEP HAIL FROM GETTING TOO LARGE. TRENDED
TOWARDS CAT POPS FOR THE EARLY HOURS OF THE PD. LATER TONIGHT...
COLD FRONT SWEEPS THROUGH BRINGING ANOUTHER ROUND OF SHOWERS.

FOR TEMPS...SPLIT THE DIFFERENCE BETWEEN THE MAV AND MET GUIDANCE
WHICH IS ABOUTH WITH BC GRIDS HAVE BEEN ADVERTIZING.

&&

.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY/...
TRIMMED BACK POPS TUES NIGHT INTO WEDS MORNING AS THE COLD FRONT
WILL PUSH SOUTH...CLEARING OUR SOUTHERN COUNTIES BY 12Z WEDS. KEEP
POPS IN FOR WEDS AFTERNOON AS THE UPPER TROUGH SWINGS THROUGH WITH A
500MB VORT MAX. VERY LIMITED MOISTURE IN THE POST FRONT ENVIRONMENT
SHOULD LIMIT THE SHOWERS AND THUNDERSTORMS...BUT KEPT CHC POPS IN
ALONG THE MAIN FORCING TO THE NORTH...AND IN THE SOUTH WHERE THERE
IS A LITTLE MORE MOISTURE AVAILABILITY. AS UPPER TROUGH SWINGS
THROUGH...POPS QUICKLY ERODE AS MOISTURE IN THE COLUMN DRIES UP.
KEEP TEMPS NEAR GUIDANCE AS TEMPERATURES DROP BACK TO NEAR NORMAL.

&&

.LONG TERM /THURSDAY NIGHT THROUGH SUNDAY/...
HPC FORECAST GENERALLY FOLLOWED...WITH SOME TWEAKS.

SURFACE HIGH PRESSURE WILL PUSH EAST EARLY IN THE PERIOD.  AS A
RESULT...TEMPERATURES EARLY SHOULD BE COOLER...WITH READINGS
RETURNING TO NORMAL LATER IN THE PERIOD.

MAIN QUESTION FOR THIS PERIOD IS NORTHWEST FLOW EARLY IN THE
PERIOD...WITH THE UPPER RIDGE BUILDING EAST ACROSS THE AREA.
BECAUSE OF THIS...MAINTAINED HPC CHANCE/SLIGHT CHANCE POPS.  POPS
SHOULD BE SOMEWHAT DIURNAL IN NATURE.

&&

.AVIATION /19Z MONDAY THROUGH SATURDAY/...
VFR CONDITIONS PREVAIL THROUGH THE LATE AFTERNOON HOURS. MCS OVER
CENTRAL OH TO TRANSITION SWD ACROSS THE FORECAST AREA THIS EVENING
BRINGING REDUCED VSBYS AND LOWERD CIGS...ALONG WITH BRIEF GUSTY
WINDS IN CONVECTION. TRIED TO TIME FEATURE ACROSS THE KPKB
TONIGHT...WITH EASTWARD TRANSITION DURING THE EVENING HOURS.

WAVE MOVES THRU BY 06Z WITH SFC FRONT POISED SAY SE INTO AREA
06-12Z. MAY SEE ANOTHER ROUND OF CONVECTION WITH THIS GIVEN UPR
LEVEL SUPPORT.

RIVER AND VALLEY SHOULD REDEVELOP DURING THE MORNING HOURS.

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

FORECAST CONFIDENCE: MEDIUM

ALTERNATE SCENARIOS: CONVECTION OVER NRN WV MAY CAUSE BRIEF IFR
CONDITIONS AND EXTEND FURTHER SOUTH THEN FORECAST AND RIVER-VALLEY
FOG MAY BE MORE WIDESPREAD DURING THE MORNING HOURS.

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

AFTER 18Z TUESDAY...
IFR CONDITIONS IN CONVECTION POSSIBLE TUESDAY AND WEDNESDAY.

&&

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

&&

SYNOPSIS...KMC/JSH/TAX
NEAR TERM...KMC
SHORT TERM...TAX
LONG TERM...JSH
AVIATION...KMC

Hazardous weather outlook, Jul 11, 7:42 PM EDT, 4 minutes before

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In the hours before

Local storm report, Jul 11, 6:44 PM EDT, 1 hour 2 minutes before

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Special weather statement, Jul 11, 6:46 PM EDT, 1 hour before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
646 PM EDT MON JUL 11 2011

VAZ004-WVZ005-024>026-033>036-112345-
BOONE WV-BUCHANAN VA-FAYETTE WV-LOGAN WV-MCDOWELL WV-MINGO WV-
RALEIGH WV-WAYNE WV-WYOMING WV-
646 PM EDT MON JUL 11 2011

...STRONG THUNDERSTORMS WILL AFFECT LOGAN...MCDOWELL...MINGO...
NORTHEASTERN BUCHANAN...RALEIGH...SOUTHEASTERN WAYNE...SOUTHERN
BOONE...SOUTHERN FAYETTE AND WYOMING COUNTIES...

AT 641 PM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM 6 MILES
SOUTH OF RICHWOOD TO 19 MILES NORTHWEST OF BECKLEY TO 6 MILES SOUTH
OF LOUISA...MOVING SOUTH AT 25 MPH.

WIND GUSTS TO 55 MPH AND PEA-SIZED HAIL ARE POSSIBLE WITH THESE
STORMS. VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE
WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL
STREAMS.

THESE STORMS WILL BE NEAR WILSONDALE...NAOMA...WHARTON...AND THURMOND
AROUND 650 PM...BLAIR...BREEDEN...BALD KNOB...AND CHIEF LOGAN STATE
PARK AROUND 655 PM...VERDUNVILLE AND DINGESS AROUND 700 PM.

THIS WILL IMPACT THE FOLLOWING INTERSTATES...I-64 NEAR BECKLEY
BETWEEN MILE MARKERS 120 AND 137...THE WEST VIRGINIA TURNPIKE BETWEEN
MILE MARKERS 28 AND 60.

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

LAT...LON 3746 8209 3753 8199 3755 8213 3768 8231
      3793 8249 3801 8249 3800 8225 3795 8229
      3799 8214 3795 8147 3804 8080 3786 8075
      3782 8092 3769 8088 3771 8096 3760 8107
      3757 8119 3727 8142 3719 8168

26

Local storm report, Jul 11, 6:52 PM EDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON, WV
652 PM EDT MON JUL 11 2011

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

0651 PM     HEAVY RAIN       SALT ROCK               38.32N  82.22W
07/11/2011  M1.20 INCH       CABELL             WV   TRAINED SPOTTER

            FELL SINCE 6 PM.

&&

EVENT NUMBER RLX1100787

JSH

Special weather statement, Jul 11, 7:10 PM EDT, 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
710 PM EDT MON JUL 11 2011

KYZ102-103-105-WVZ005-120015-
BOYD KY-CARTER KY-LAWRENCE KY-WAYNE WV-
710 PM EDT MON JUL 11 2011

...A STRONG THUNDERSTORM WILL AFFECT BOYD...EASTERN CARTER...LAWRENCE
AND WESTERN WAYNE COUNTIES...

AT 709 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES WEST OF
YATESVILLE LAKE STATE PARK...MOVING SOUTHEAST AT 35 MPH.

WIND GUSTS TO 50 MPH AND HAIL UP TO DIME SIZE ARE POSSIBLE WITH THIS
STORM. VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE
WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL
STREAMS.

THIS STORM WILL BE NEAR YATESVILLE LAKE STATE PARK AROUND 715 PM...
LOUISA AROUND 720 PM...MARTHA AROUND 725 PM...GALLUP AROUND 730 PM
AND ULYSSES AROUND 735 PM.

THIS WILL IMPACT THE FOLLOWING INTERSTATES...I-64 BETWEEN MILE
MARKERS 161 AND 191 IN KENTUCKY...AND BETWEEN MILE MARKERS 1 AND 2 IN
WEST VIRGINIA.

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

LAT...LON 3840 8292 3837 8282 3845 8276 3848 8263
      3840 8256 3789 8242 3790 8248 3795 8252
      3795 8256 3788 8263 3799 8291 3799 8296
      3796 8299 3798 8303 3803 8301 3812 8290
      3817 8292 3818 8306 3823 8311 3834 8313

26

Local storm report, Jul 11, 7:24 PM EDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON, WV
724 PM EDT MON JUL 11 2011

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

0625 PM     TSTM WND GST     2 W WARNOCK             38.49N  83.01W
07/11/2011  E50 MPH          GREENUP            KY   CO-OP OBSERVER

&&

EVENT NUMBER RLX1100788

JSH

Special weather statement, Jul 11, 7:46 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
746 PM EDT MON JUL 11 2011

VAZ003-004-WVZ033-120045-
BUCHANAN VA-DICKENSON VA-MCDOWELL WV-
746 PM EDT MON JUL 11 2011

...STRONG THUNDERSTORMS WILL AFFECT BUCHANAN...DICKENSON AND MCDOWELL
COUNTIES...

AT 741 PM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM 4 MILES
NORTHWEST OF HINTON TO 17 MILES WEST OF WELCH TO 11 MILES NORTH OF
PIKEVILLE...MOVING SOUTH AT 35 MPH.

WIND GUSTS TO 50 MPH AND HAIL UP TO DIME SIZE ARE POSSIBLE WITH THESE
STORMS. VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE
WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL
STREAMS.

THESE STORMS WILL BE NEAR COALWOOD...WELCH...KIMBALL...AND BRADSHAW
AROUND 755 PM...JOLO...ROSEANN...NORTHFORK...AND KEYSTONE AROUND 800
PM...ELBERT AND MAYBEURY AROUND 805 PM.

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

LAT...LON 3703 8249 3713 8255 3721 8255 3727 8235
      3753 8199 3742 8131 3728 8140 3725 8150
      3720 8156 3719 8168 3723 8173 3718 8180
      3713 8192 3712 8200 3704 8204 3703 8217
      3695 8236

26

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 3:26 PM EDT	Special Weather Statement	RLX	Wood	64 min
Jul 11, 4:05 PM EDT	Special Weather Statement	RLX	Doddridge, Pleasants, Ritchie, Tyler, Wirt, Wood	55 min
Jul 11, 4:12 PM EDT	Special Weather Statement	RLX	Jackson, Mason, Putnam, Roane	63 min
Jul 11, 5:03 PM EDT	Special Weather Statement	RLX	Barbour, Calhoun, Gilmer, Harrison, Lewis, Taylor and 1 more	57 min
Jul 11, 5:12 PM EDT	Special Weather Statement	RLX	Braxton, Cabell, Clay, Kanawha, Lincoln, Nicholas and 2 more	63 min
Jul 11, 5:43 PM EDT	Areal Flood Warning	RLX	Cabell	78 min
Jul 11, 5:51 PM EDT	Special Weather Statement	RLX	Nicholas, Pocahontas, Randolph, Webster	54 min
Jul 11, 6:03 PM EDT	Special Weather Statement	RLX	Lincoln, Wayne	57 min
Jul 11, 6:08 PM EDT	Special Weather Statement	RLX	Boone, Fayette, Kanawha, Logan	67 min
Jul 11, 6:46 PM EDT	Special Weather Statement	RLX	Logan, McDowell, Mingo, Raleigh, Wyoming	59 min
Jul 11, 2:28 PM EDT	Special Weather Statement	RLX	Perry	62 min
Jul 11, 2:46 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Morgan, Perry	59 min
Jul 11, 7:10 PM EDT	Special Weather Statement	RLX	Boyd, Carter, Lawrence	65 min

Nearby

Special Weather Statements in Virginia, 2011 Special Weather Statements in West Virginia, 2011 Every special weather statement 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.