Alert archive / Ohio / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 31, NWS Wilmington, OH

April 8, 2015Adams County, Brown County, Ohio; Lewis County, Mason County, Kentucky

NWS Wilmington, OH issued this severe thunderstorm warning at Apr 8, 2015, 10:18 PM EDT for Adams County, Brown County, Ohio; Lewis County, Mason County, Kentucky. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 8, 2015, 10:18 PM EDT (02:18 UTC)
Expired: Apr 8, 2015, 10:45 PM EDT
In force: 27 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Lewis County, KY, Mason County, KY, Adams County, OH, Brown County, OH

The radar

The Cincinnati radar (KILN), 79 km from the middle of the area, began a volume at 02:20 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

Pittsburgh, PA (KAGC), launched 00:00Z, 2.3 hours before the alert went out and 356 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1029 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 163 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 8, 9:54 PM EDT, 24 minutes earlier.

Area forecast discussion, Apr 8, 9:54 PM EDT, 24 minutes 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 8, 3:53 PM EDT, 6 hours 25 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
353 PM EDT WED APR 8 2015

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ060>063-070>073-077>082-
088-092000-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-
SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-OWEN-GRANT-
PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-PREBLE-MONTGOMERY-GREENE-
FAYETTE OH-BUTLER-WARREN-CLINTON-ROSS-HAMILTON-CLERMONT-BROWN-
HIGHLAND-ADAMS-PIKE-SCIOTO-
353 PM EDT WED APR 8 2015

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

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL
INDIANA...SOUTHEAST INDIANA...NORTHEAST KENTUCKY...NORTHERN
KENTUCKY...CENTRAL OHIO...MIAMI VALLEY OF OHIO...SOUTH CENTRAL OHIO
AND SOUTHWEST OHIO.

.DAY ONE...THIS AFTERNOON 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.

ADDITIONAL THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS EVENING.
SOME OF THESE STORMS MAY BE SEVERE WITH DAMAGING WIND GUSTS AND
LARGE HAIL THE PRIMARY THREATS. IN ADDITION...THERE IS THE
POTENTIAL FOR LOCALIZED FLOODING DUE TO HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

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

   FLASH FLOOD WATCH.

WITH SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS EXPECTED
THURSDAY THROUGH FRIDAY MORNING THERE IS THE POTENTIAL FOR SOME
LOCALIZED FLOODING ISSUES. IN ADDITION TO THE FLOODING
THREAT...THERE IS ALSO THE POTENTIAL SEVERE THREAT. DAMAGING WINDS
AND LARGE HAIL ARE THE PRIMARY SEVERE THREATS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

OHZ026-034-035-042>046-051>056-064-065-074-092000-
HARDIN-MERCER-AUGLAIZE-DARKE-SHELBY-LOGAN-UNION OH-DELAWARE-MIAMI-
CHAMPAIGN-CLARK-MADISON-FRANKLIN OH-LICKING-PICKAWAY-FAIRFIELD-
HOCKING-
353 PM EDT WED APR 8 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL OHIO...MIAMI VALLEY
OF OHIO AND WEST CENTRAL OHIO.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ADDITIONAL THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS EVENING.
SOME OF THESE STORMS MAY BE SEVERE WITH DAMAGING WIND GUSTS AND
LARGE HAIL THE PRIMARY THREATS. IN ADDITION...THERE IS THE
POTENTIAL FOR LOCALIZED FLOODING DUE TO HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

WITH SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS EXPECTED
THURSDAY THROUGH FRIDAY MORNING THERE IS THE POTENTIAL FOR SOME
LOCALIZED FLOODING ISSUES. IN ADDITION TO THE FLOODING
THREAT...THERE IS ALSO THE POTENTIAL SEVERE THREAT. DAMAGING WINDS
AND LARGE HAIL ARE THE PRIMARY SEVERE THREATS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Apr 8, 8:18 PM EDT, 2 hours 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>

Local storm report, Apr 8, 8:35 PM EDT, 1 hour 43 minutes 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>

Special weather statement, Apr 8, 8:36 PM EDT, 1 hour 42 minutes 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>

Local storm report, Apr 8, 8:43 PM EDT, 1 hour 35 minutes 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>

Local storm report, Apr 8, 8:45 PM EDT, 1 hour 33 minutes 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>

Special weather statement, Apr 8, 10:12 PM EDT, 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1012 PM EDT WED APR 8 2015

KYZ099-100-OHZ079-081-090245-
LEWIS KY-MASON KY-ADAMS OH-BROWN OH-
1012 PM EDT WED APR 8 2015

...A STRONG THUNDERSTORM WILL AFFECT EXTREME SOUTHEASTERN BROWN...
SOUTHERN ADAMS...EASTERN MASON AND NORTHWESTERN LEWIS COUNTIES
THROUGH 1045 PM EDT...

AT 1010 PM EDT...RADAR INDICATED A STRONG THUNDERSTORM NEAR
WASHINGTON...MOVING EAST AT 40 MPH.

STORM HAZARDS INCLUDE...
WINDS TO 30 MPH...
ONE HALF INCH DIAMETER HAIL...

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...MAYSVILLE...
MANCHESTER...TOLLESBORO AND VANCEBURG.

ALSO...FLEMING-MASON AIRPORT...SOMO...ORANGEBURG...BRADYSVILLE...
RECTORVILLE...TRINITY...RIBOLT...HERRON HILL...CONCORD AND CHARTERS
ARE NEAR THE PATH OF THIS STRONG THUNDERSTORM.

LAT...LON 3853 8387 3871 8388 3875 8327 3862 8327
      3863 8325 3853 8324

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 8, 8:36 PM EDT	Special Weather Statement	ILN	Hamilton	24 min
Apr 8, 8:38 PM EDT	Areal Flood Advisory	ILN	Adams, Brown	3 hr
Apr 8, 8:43 PM EDT	Areal Flood Advisory	ILN	Champaign, Clark, Madison, Miami, Union	3 hr
Apr 8, 8:52 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Butler, Clermont, Clinton, Hamilton, Warren	23 min
Apr 8, 9:03 PM EDT	Areal Flood Advisory	ILN	Fairfield, Franklin, Hocking, Licking, Pickaway	3 hr
Apr 8, 9:08 PM EDT	Areal Flood Advisory	ILN	Adams, Pike, Scioto	5 hr
Apr 8, 9:39 PM EDT	Areal Flood Advisory	ILN	Clermont	2 hr
Apr 8, 10:46 PM EDT	Areal Flood Warning	ILN	Butler, Hamilton	12 hr
Apr 9, 2:51 AM EDT	Special Weather Statement	ILN	Union	24 min
Apr 9, 2:53 AM EDT	Special Weather Statement	ILN	Delaware, Union	37 min
Apr 9, 3:47 AM EDT	Special Weather Statement	ILN	Fayette	28 min
Apr 9, 4:25 AM EDT	Special Weather Statement	ILN	Madison	35 min
Apr 9, 6:01 AM EDT	Areal Flood Advisory	ILN	Licking	3 hr
Apr 9, 10:05 AM EDT	Special Weather Statement	ILN	Miami	40 min
Apr 9, 10:41 AM EDT	Special Weather Statement	ILN	Champaign	34 min
Apr 9, 11:49 AM EDT	Special Weather Statement	ILN	Shelby	26 min
Apr 9, 1:48 PM EDT	Severe Thunderstorm Warning	ILN	Clermont, Hamilton	27 min
Apr 9, 1:55 PM EDT	Special Weather Statement	ILN	Clinton	35 min
Apr 9, 2:15 PM EDT	Special Weather Statement	ILN	Brown	30 min
Apr 9, 2:24 PM EDT	Special Weather Statement	ILN	Brown	36 min
Apr 9, 2:27 PM EDT	Special Weather Statement	ILN	Fayette	33 min
Apr 9, 2:34 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont, Highland	24 min
Apr 9, 2:41 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Fayette, Highland, Pickaway, Ross	34 min
Apr 9, 2:47 PM EDT	River Flood Warning	ILN	Pickaway	64 hr
Apr 9, 2:58 PM EDT	Severe Thunderstorm Warning	ILN	Fayette, Pickaway, Ross	32 min
Apr 9, 3:17 PM EDT	Special Weather Statement	ILN	Pike	28 min
Apr 9, 3:27 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Pike, Ross, Scioto	33 min
Apr 9, 3:28 PM EDT	Special Weather Statement	ILN	Fairfield	32 min
Apr 9, 3:55 PM EDT	Severe Thunderstorm Warning	ILN	Licking	20 min
Apr 9, 4:05 PM EDT	Special Weather Statement	ILN	Hocking	25 min
Apr 9, 5:57 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Hamilton	33 min
Apr 9, 6:21 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Clermont, Hamilton, Warren	39 min
Apr 9, 6:23 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Montgomery, Preble, Warren	37 min
Apr 9, 6:46 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Greene, Miami, Montgomery	22 min
Apr 9, 6:56 PM EDT	Special Weather Statement	ILN	Clinton	34 min
Apr 9, 7:33 PM EDT	Special Weather Statement	ILN	Clinton	27 min
Apr 8, 9:14 PM EDT	Areal Flood Advisory	ILN	Grant, Owen	3 hr
Apr 8, 10:12 PM EDT	Special Weather Statement	ILN	Lewis, Mason	33 min
Apr 9, 12:46 PM EDT	Special Weather Statement	ILN	Carroll	29 min
Apr 9, 1:02 PM EDT	Special Weather Statement	ILN	Carroll, Gallatin, Grant, Owen	28 min
Apr 9, 1:19 PM EDT	Special Weather Statement	ILN	Greenup	26 min
Apr 9, 1:28 PM EDT	Severe Thunderstorm Warning	ILN	Boone, Campbell, Gallatin, Grant, Kenton, Owen and 1 more	32 min
Apr 9, 2:02 PM EDT	Special Weather Statement	ILN	Grant, Owen	28 min
Apr 9, 2:49 PM EDT	Severe Thunderstorm Warning	ILN	Grant, Owen, Pendleton	26 min
Apr 9, 5:27 PM EDT	Special Weather Statement	ILN	Boone	33 min
Apr 9, 5:05 PM EDT	Special Weather Statement	ILN	Dearborn, Ohio, Ripley, Switzerland	25 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2015 Severe Thunderstorm Warnings in Kentucky, 2015 Every severe thunderstorm warning in 2015

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.