Alert archive / West Virginia / Special Weather Statements in 2012
Special Weather Statement, NWS Charleston, WV
NWS Charleston, WV issued this special weather statement at Apr 2, 2012, 1:11 AM EDT for Wayne County, West Virginia; Boyd County, Kentucky. It was in force for 34 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
- Apr 2, 2012, 1:11 AM EDT (05:11 UTC)
- Expired
- Apr 2, 2012, 1:45 AM EDT
- In force
- 34 min
- Issued by
- NWS Charleston, WV
Counties Boyd County, KY, Wayne County, WV
The radar
The Charleston,WV radar (KRLX), 70 km from the middle of the area, began a volume at 05:12 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, 5.2 hours before the alert went out and 173 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.
- Mixed-layer CAPE
- 663 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 943 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 267 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 6.4
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>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 Apr 2, 1:08 AM EDT, 3 minutes earlier.
Area forecast discussion, Apr 2, 1:08 AM EDT, 3 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON WV 108 AM EDT MON APR 2 2012 .SYNOPSIS... SHOWERS AND STORMS EXITING SOUTH EARLY TODAY. ANOTHER LOW PRESSURE SYSTEM TUESDAY INTO WEDNESDAY. && .NEAR TERM /THROUGH TODAY/... UPDATE... SHOWERS AND THUNDERSTORMS CONTINUE ACROSS MAINLY SOUTHERN AND WESTERN COUNTIES...UPDATED POPS TO REFLECT CURRENT TRENDS. SHOWER ACTIVITY SHOULD CONTINUE TO SAG SOUTH...WITH JUST A FEW STRAGGLERS ACROSS CENTRAL WV. AS FOR CURRENT TEMPS...THE LAV SEEMED TO CLOSELY MATCH CURRENT OBS...SO BLENDING IT IN THROUGH THE REST OF THE NIGHT. THIS RESULTED IN LOWERING THE OVERNIGHT LOWS A COUPLE DEGREES IN THE COAL FIELDS AND EASTERN KY. PREVIOUS DISCUSSION... COMPLICATED FCST SHAPING UP FOR THIS AFTN AND EVE...PARTICULARLY CONCERNING CONVECTION/SVR POTENTIAL. LOOKING AT MCS...MAINLY ELEVATED...ACROSS S KY ATTM. THIS IS IN ASSOCIATION WITH ISENTROPIC LIFT IN THE 300 TO 315K RANGE ATOP A WARM FRONTAL BOUNDARY AMID SOME VORT. MDLS INSIST ON TRACKING THIS FEATURE SE THRU INTO NE TN THIS AFTN. THIS MAY CLIP SW VA AND HAVE INSERTED LOW CHC POPS FOR A FEW SHRA BY THIS AFTN. ELSEWHERE...NOTHING MORE THAT SOME MID/HI CLDS ACROSS THE AREA. ATTENTION TURNS TO LATER THIS AFTN/EVE. COMPLICATED SCENARIO TO PLAY OUT WITH ADVANCING WARM FRONTAL BOUNDARY FROM W/SW WITH A COLD FRONT APPROACHING FROM N LATE. PROBLEM LIES WITH AFOREMENTIONED MCS BLOCKING INFLUX OF LLVL MOIST AIR WITH DEWPTS OVER AREA STILL IN IN 40S. EVEN SOME 30S SHOWING UP IN MTNS. THUS NOT EXPECTING MUCH OF ANYTHING BEFORE 21Z ASIDE FROM SW VA. ONCE MCS MOVES S...INFLUX OF OF MOIST LLVL AIR SHOULD BE ABLE TO ADVECT E AND NE...ESPECIALLY WITH OVERALL FLOW INCREASING AMID APPROACHING UPR TROF. LOOKING FOR THIS TO OCCUR AFTER 21Z WITH DWPTS APPROACHING 60F CREEPING E INTO SE OH JUST AHEAD OF BAROCLINIC ZONE. WILL CONT SVR WORDING IN WX GRIDS ACROSS PORTIONS OF SE OH DOWN THRU NE KY/WESTERN WV FOR THIS EVE. THIS WILL BE THE AREA WHERE SFC INSTABILITY WILL COINCIDE WITH FAVORABLE JET DYNAMICS. CONVECTION WILL TEND TO BECOME LINEAR WITH SPC NOTING POSSIBLE EVOLUTION INTO FORWARD PROPAGATING MCS. THIS OF COURSE WOULD RACE OUT AHEAD OF FRONT WITH A LAG FOR FROPA. WITH THAT THINKING...HAVE CAT POPS STARTING NEAR FRONT ACROSS SE OH...AND RACING SE THRU REMAINDER OF CWA. TIMING LOOKS TO BE ARND 00-02Z SE OH/N WV...02 TO 04Z NE KY/CENTRAL WV...03-06Z S WV/SW VA. SUBSEQUENT FROPA LAGS MORE ACROSS S ZONES...TAKING UNTIL 12Z TO CLR SW VA. CLEARING BEHIND THIS AS UPR TROF MOVES IN AND DRY AIR WORKS IN FROM N. ENOUGH LLVL MOISTURE MAY REMAIN FOR SOME STRATUS LATE ALONG AND E OF I79 CORRIDOR DOWN THRU S MTNS AMID A N TO NNE SFC FLOW. MON SHAPING UP TO BE SPLENDID WITH A MAINLY CLR SKY AND LOW DWPTS ADVECTING IN. SHOULD SEE SOMEWHAT OF A TEMPERATURE GRADIENT N TO S GIVEN AMNT OF CAA TO TAKE PLACE ACROSS FAR N. WILL LEAN ON LOW SIDE ACROSS N. && .SHORT TERM /TONIGHT THROUGH WEDNESDAY/... MODELS SHOWING DRY WEATHER MONDAY EVENING...BUT MOISTURE PUSHES BACK NORTHWARD TO ALLOW FOR THE POSSIBILITY OF SHOWERS AND THUNDERSTORMS FOR TUESDAY. BIG MODEL DIFFERENCES THEN DEVELOP WITH THE COLD FRONTAL TIMING. NAM AND SREF ARE THE FASTEST...QUICKLY PUSHING THE FRONT THROUGH TUESDAY EVENING. GFS/GEFS/ECMWF AND CANADIAN ARE MUCH SLOWER WITH THE FRONT MOVING THROUGH WEDNESDAY MORNING. WILL SLOW THE TIMING OF THIS FRONT DOWN FROM CURRENT FORECAST AND STAY WITH CHANCE POPS DUE TO LARGE UNCERTAINTY. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... EVEN THOUGH THE FRONT WILL BE SOUTH OF OUR AREA...AN UPPER LOW UNDERCUTS THE BROAD UPPER RIDGE OVER THE CENTER OF THE NATION...AND DROPS SOUTHEAST THROUGH THE SOUTHEASTERN STATES WEDNESDAY NIGHT THROUGH THURSDAY NIGHT. STILL CANNOT RULE OUT THE NORTHERN EDGE OF THE SHOWERS ASSOCIATED WITH THIS FEATURE MOVING ACROSS THE SOUTHERN PORTIONS OF OUR AREA...SO WILL MAINTAIN A SMALL CHANCE THROUGH THURSDAY NIGHT. UPPER RIDGE REBUILDS OVER THE CENTER OF THE NATION BY FRIDAY. THIS WILL ALLOW BROAD SURFACE CANADIAN HIGH PRESSURE TO BUILD SOUTH OUT OF EASTERN CANADA...PROVIDING DRY WEATHER FOR THE REMAINDER OF THE WORKWEEK INTO EARLY WEEKEND. EXPECT COOLER TEMPERATURES THROUGH THE REMAINDER OF THE WORKWEEK...REBOUNDING SATURDAY AND SUNDAY AS THE SURFACE HIGH SLIDES EAST AND SOUTHERLY FLOW RETURNS. && .AVIATION /05Z MONDAY THROUGH FRIDAY/... CONVECTION CONTINUES ACROSS OUR SOUTHERN AND WESTERN CWA...HOWEVER MOST OF THE ACTIVITY SHOULD NOT IMPACT TAF SITES. KBKW WOULD BE THE EXCEPTION...WHERE A PASSING SHOWER IS POSSIBLE OVER THE NEXT COUPLE HOURS. DID NOT INCLUDE THIS IN TAF...INSTEAD OPTING TO HANDLE WITH A TEMPO IF A SHOWER IS HEADED TOWARD THE AIRPORT. THESE SHOWERS JUST AHEAD OF A COLD FRONT THAT WILL CONTINUE DROOPING SOUTH EARLY THIS MORNING. LOWER CLOUDS BEHIND THE COLD FRONT WILL BRING LOW MVFR CONDITIONS THROUGH THE EARLY MORNING. IN FACT OBS IN PA...CURRENTLY BEHIND THE FRONT...ARE DROPPING NEAR OR INTO IFR CEILINGS IN SOME LOCATIONS. COULD SEE THIS...MOST LIKELY IN KEKN FOR A COUPLE HOURS. HAVE THE LOWEST CEILINGS THERE...BUT WILL HAVE TO MONITOR IN CASE IT DROPS LOWER. CLOUDS WILL BEGIN TO LIFT AROUND SUNRISE AS DRIER AIR MOVES IN...SO EXPECTING MVFR CONDITIONS TO TAKE OVER FOR THE REST OF THE DAY. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 06Z TUESDAY... FORECAST CONFIDENCE...MEDIUM. ALTERNATE SCENARIOS: DURATION OF LOWER CEILINGS...AND HOW LOW THEY GET COULD VARY. COULD SEE A DROP INTO IFR AT SOME SITES. 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. DATE MON 04/02/12 UTC 1HRLY 06 07 08 09 10 11 12 13 14 15 16 17 EDT 1HRLY 02 03 04 05 06 07 08 09 10 11 12 13 CRW CONSISTENCY H M M M L M L H H H H H HTS CONSISTENCY H H H M M L M M H H H H BKW CONSISTENCY H H M L L L L L L H H H EKN CONSISTENCY M M L M L H H H H H H H PKB CONSISTENCY M H L M L H H H H H H H CKB CONSISTENCY M M M L M H H H H H H H AFTER 06Z TUESDAY... IFR CONDITIONS POSSIBLE IN THUNDERSTORMS TUESDAY INTO WEDNESDAY. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...NONE. OH...NONE. KY...NONE. VA...NONE. && SYNOPSIS...RPY/JMV/30 NEAR TERM...MZ/30 SHORT TERM...RPY LONG TERM...JMV AVIATION...MZ
Hazardous weather outlook, Apr 1, 3:10 PM EDT, 10 hours 1 minute before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHARLESTON WV 310 PM EDT SUN APR 1 2012 VAZ003-004-WVZ010-011-018>020-027>040-046-047-021915- DICKENSON-BUCHANAN-PLEASANTS-TYLER-CALHOUN-RITCHIE-DODDRIDGE-CLAY- BRAXTON-GILMER-LEWIS-HARRISON-TAYLOR-MCDOWELL-WYOMING-RALEIGH- FAYETTE-NICHOLAS-WEBSTER-UPSHUR-BARBOUR-POCAHONTAS-RANDOLPH- 310 PM EDT SUN APR 1 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST VIRGINIA...CENTRAL WEST VIRGINIA...NORTHERN WEST VIRGINIA AND SOUTHERN WEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. THUNDERSTORMS TUESDAY AFTERNOON COULD PRODUCE LARGE HAIL AND DAMAGING WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. KYZ101>103-105-OHZ066-067-075-076-083>087-WVZ005>009-013>017-024>026- 021915- GREENUP-CARTER-BOYD-LAWRENCE KY-PERRY-MORGAN-ATHENS-WASHINGTON- JACKSON OH-VINTON-MEIGS-GALLIA-LAWRENCE OH-WAYNE-CABELL-MASON- JACKSON WV-WOOD-LINCOLN-PUTNAM-KANAWHA-ROANE-WIRT-MINGO-LOGAN-BOONE- 310 PM EDT SUN APR 1 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST KENTUCKY...SOUTHEAST OHIO AND MUCH OF WEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SOME THUNDERSTORMS THIS AFTERNOON...AND THROUGH MIDNIGHT TONIGHT... COULD PRODUCE LARGE HAIL. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. THUNDERSTORMS TUESDAY AFTERNOON COULD PRODUCE LARGE HAIL AND DAMAGING WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTERS SHOULD REPORT SIGNIFICANT WEATHER THROUGH STANDARD OPERATING PROCEDURES.
In the hours before
Special weather statement, Apr 2, 1:11 AM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
111 AM EDT MON APR 2 2012
KYZ101>103-105-WVZ005-020545-
BOYD KY-CARTER KY-GREENUP KY-LAWRENCE KY-WAYNE WV-
111 AM EDT MON APR 2 2012
...A STRONG THUNDERSTORM WILL AFFECT BOYD...EAST CENTRAL CARTER...
NORTH CENTRAL LAWRENCE...NORTHERN WAYNE AND SOUTHEASTERN GREENUP
COUNTIES...
AT 103 AM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR NAPLES AND
THE ALONG THE BOYD GREENUP COUNTY LINE. IT WAS RACING SOUTHEAST AT
45 MPH INTO BOYD COUNTY.
THIS STORM COULD CONTAIN HAIL NICKEL SIZE. BRIEF DOWNPOURS ARE ALSO
LIKELY...THAT WOULD LIMIT DRIVING VISIBILITY AND CAUSE SOME
PONDING OF WATER IN POOR DRAINAGE AREAS.
THIS WILL IMPACT THE FOLLOWING INTERSTATE...I-64 BETWEEN MILE MARKERS
175 AND 191 IN KENTUCKY.
OTHER SHOWERS AND THUNDERSTORMS EXTENDED FURTHER TO THE
SOUTHEAST...INTO WAYNE COUNTY. ANY OF THESE COULD CONTAIN A BRIEF
DOWNPOUR.
PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3822 8229 3804 8231 3804 8253 3838 8292
3851 8280The office that day
Everything else NWS Charleston, WV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 1:40 AM EDT | Special Weather Statement | RLX | Logan, Wayne | 35 min |
| Apr 2, 2:33 PM EDT | Frost Advisory | RLX | Braxton, Doddridge, Gilmer, Harrison, Lewis, Taylor | 17 hr |
Nearby
Special Weather Statements in West Virginia, 2012Special Weather Statements in Kentucky, 2012Every special weather statement in 2012
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.