Alert archive / Kentucky / Special Weather Statements in 2012

Special Weather Statement, NWS Charleston, WV

April 30, 2012Boyd County, Carter County, Greenup County, Kentucky

NWS Charleston, WV issued this special weather statement at Apr 30, 2012, 10:11 PM EDT for Boyd County, Carter County, Greenup 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 30, 2012, 10:11 PM EDT (02:11 UTC)
Expired: Apr 30, 2012, 10:45 PM EDT
In force: 34 min
Issued by: NWS Charleston, WV

Counties Boyd County, KY, Carter County, KY, Greenup County, KY

The radar

The Jackson,KY radar (KJKL), 86 km from the middle of the area, began a volume at 02:11 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, 2.2 hours before the alert went out and 139 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: 98 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1642 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</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 30, 8:10 PM EDT, 2 hours 1 minute earlier.

Area forecast discussion, Apr 30, 8:10 PM EDT, 2 hours 1 minute before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Apr 30, 4:46 AM EDT, 17 hours 25 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON WV
446 AM EDT MON APR 30 2012

KYZ103-105-VAZ003-004-WVZ005>008-013>018-024>030-033>040-046-047-
010900-
BOYD-LAWRENCE KY-DICKENSON-BUCHANAN-WAYNE-CABELL-MASON-JACKSON WV-
LINCOLN-PUTNAM-KANAWHA-ROANE-WIRT-CALHOUN-MINGO-LOGAN-BOONE-CLAY-
BRAXTON-GILMER-LEWIS-MCDOWELL-WYOMING-RALEIGH-FAYETTE-NICHOLAS-
WEBSTER-UPSHUR-BARBOUR-POCAHONTAS-RANDOLPH-
446 AM EDT MON APR 30 2012

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

.DAY ONE...TODAY AND TONIGHT.

SEVERAL ROUNDS OF HEAVY SHOWERS AND THUNDERSTORMS MONDAY NIGHT MAY
RESULT IN A FLASH FLOOD THREAT ACROSS THE AREA. IF CONDITIONS
CONTINUE TO INDICATE HEAVY RAIN POTENTIAL...A FLASH FLOOD WATCH
MAY BE NECESSARY FOR THE MOST VULNERABLE COUNTIES.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

SEVERAL ROUNDS OF HEAVY SHOWERS AND THUNDERSTORMS TUESDAY MAY
RESULT IN A FLASH FLOOD THREAT ACROSS THE AREA. IF CONDITIONS
CONTINUE TO INDICATE HEAVY RAIN POTENTIAL...A FLASH FLOOD WATCH
MAY BE NECESSARY FOR THE MOST VULNERABLE COUNTIES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

KYZ101-102-OHZ066-067-075-076-083>087-WVZ009>011-019-020-031-032-
010900-
GREENUP-CARTER-PERRY-MORGAN-ATHENS-WASHINGTON-JACKSON OH-VINTON-
MEIGS-GALLIA-LAWRENCE OH-WOOD-PLEASANTS-TYLER-RITCHIE-DODDRIDGE-
HARRISON-TAYLOR-
446 AM EDT MON APR 30 2012

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

.DAY ONE...TODAY AND TONIGHT.

SEVERAL ROUNDS OF HEAVY SHOWERS AND THUNDERSTORMS MONDAY NIGHT MAY
RESULT IN A FLASH FLOOD THREAT ACROSS THE AREA. IF CONDITIONS
CONTINUE TO INDICATE HEAVY RAIN POTENTIAL...A FLASH FLOOD WATCH
MAY BE NECESSARY FOR THE MOST VULNERABLE COUNTIES.

IN ADDITION...THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS
TODAY AND TONIGHT...WITH DAMAGING WINDS AND LARGE HAIL THE PRIMARY
THREATS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

SEVERAL ROUNDS OF HEAVY SHOWERS AND THUNDERSTORMS TUESDAY MAY RESULT IN
A FLASH FLOOD THREAT ACROSS THE AREA. IF CONDITIONS CONTINUE TO
INDICATE HEAVY RAIN POTENTIAL...A FLASH FLOOD WATCH MAY BE
NECESSARY FOR THE MOST VULNERABLE COUNTIES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

In the hours before

Special weather statement, Apr 30, 10:11 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
1011 PM EDT MON APR 30 2012

KYZ101>103-105-010245-
BOYD KY-CARTER KY-GREENUP KY-LAWRENCE KY-
1011 PM EDT MON APR 30 2012

...A STRONG THUNDERSTORM WILL AFFECT BOYD...CARTER...GREENUP AND
NORTH CENTRAL LAWRENCE COUNTIES...

AT 1009 PM EDT...A STRONG THUNDERSTORM WAS LOCATED OVER GRAYSON LAKE
STATE PARK...MOVING NORTHEAST AT 45 MPH.

WIND GUSTS TO 40 MPH AND PEA-SIZED HAIL ARE POSSIBLE WITH THIS STORM.
BRIEF 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 DENTON AROUND 1020 PM...HOPEWELL AROUND 1025
PM...GARNER AROUND 1030 PM...MAVITY AROUND 1035 PM AND CANNONSBURG
AROUND 1040 PM.

THIS WILL IMPACT THE FOLLOWING INTERSTATE...I-64 BETWEEN MILE MARKERS
149 AND 188 IN KENTUCKY.

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

LAT...LON 3834 8324 3843 8324 3856 8310 3873 8303
      3876 8290 3859 8284 3856 8275 3842 8265
      3817 8263 3809 8291 3810 8291 3811 8290
      3817 8292 3819 8302 3818 8306 3826 8316
      3819 8324 3819 8327 3821 8331 3832 8334

16

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 11:00 PM EDT	Special Weather Statement	RLX	Cabell, Lincoln, Wayne	45 min
Apr 30, 11:45 PM EDT	Special Weather Statement	RLX	Boone, Kanawha	45 min
May 1, 12:27 AM EDT	Special Weather Statement	RLX	Clay, Nicholas	48 min
May 1, 1:07 AM EDT	Special Weather Statement	RLX	Barbour, Braxton, Lewis, Randolph, Upshur	68 min
May 1, 5:01 PM EDT	Special Weather Statement	RLX	McDowell	29 min
May 1, 7:12 PM EDT	Special Weather Statement	RLX	Vinton	33 min
May 1, 7:31 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Jackson, Meigs, Vinton	59 min
May 1, 7:52 PM EDT	Severe Thunderstorm Warning	RLX	Gallia, Jackson, Lawrence, Meigs, Vinton	53 min
May 1, 7:56 PM EDT	Severe Thunderstorm Warning	RLX	Gallia, Lawrence	64 min

Nearby

Special Weather Statements in Kentucky, 2012 Every 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.