Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 178, NWS Norman, OK

April 22, 1996Coal County, Johnston County, Pontotoc County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 22, 1996, 2:35 AM CDT for Coal County, Johnston County, Pontotoc County, Oklahoma. It was in force for 40 min. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 22, 1996, 2:35 AM CDT (07:35 UTC)
Expired: Apr 22, 1996, 3:15 AM CDT
In force: 40 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Coal County, OK, Johnston County, OK, Pontotoc County, OK

The radar

The Norman radar (KTLX), 110 km from the middle of the area, began a volume at 07:37 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
Apr 22, 2:39 AM CDT	Hail 1	Ada, OK
Apr 22, 2:40 AM CDT	Hail 0.75	Stonewall, OK
Apr 22, 3:05 AM CDT	Hail 0.88	Pontotoc, OK
Apr 22, 3:15 AM CDT	Hail 0.75	Cottonwood, OK

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 7.6 hours before the alert went out and 108 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: 392 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 1442 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 295 m²/s²
0-3 km storm-relative helicity: 484 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 21, 9:18 PM CDT, 5 hours 17 minutes earlier.

Area forecast discussion, Apr 21, 9:18 PM CDT, 5 hours 17 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
918 PM CDT SUN APR 21 1996

MST OF THE SVR TSTMS NOW SEEM TO BE ALG THE RED RIVER IN SCNTRL OK BUT
SCT ACTIVITY OF LESSER INTENSITY STILL CONTS TO EXTEND WWD INTO WCNTRL
OK. DO NOT PLAN TO MAKE MAJOR CHGS TO ZONES ATTM.

FCSTID = 12

.OKC...
OK...NONE.
TX...NONE.

In the hours before

Local storm report, Apr 21, 11:14 PM CDT, 3 hours 21 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1055 PM CDT SUN APR 21 1996

TIME(CDT)   .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
DATE        ....COUNTY LOCATION....

530 PM       PETROLIA                 TX       1.75 INCH HAIL
04/21/96     CLAY

554 PM       LAWTON                   OK       1.75 INCH HAIL
04/21/96     COMANCHE

612 PM       10 S ELECTRA             TX       2.5 INCH HAIL
04/21/96     WICHITA

630 PM       5 N LAWTON               OK       1.5 INCH HAIL
04/21/96     COMANCHE

632 PM       LOCO                     OK       0.88 INCH HAIL
04/21/96

651 PM       5 NW SULPHUR             OK       RAIN WRAPPED TORNADO
04/21/96     MURRAY                            REPORTED

635 PM       8 N HEALDTON             OK       REPORTED TORNADO
04/21/96     CARTER

635 PM       5 S HEALDTON             OK       REPORTED TORNADO
04/21/96     CARTER

645-650 PM   5 SE FOX                 OK       REPORTED TORNADO
04/21/96     CARTER

640 PM       2 N CYRIL                OK       1.0 INCH HAIL
04/21/96     CADDO

655 PM       VERDEN                   OK       1.75 INCH HAIL
04/21/96     GRADY

700 PM       POCASSET                 OK       1.75 INCH HAIL
04/21/96     GRADY

706 PM       8 N SULPHUR              OK       BUILDING DE-ROOFED
04/21/96     MURRAY                            BY POSSIBLE TORNADO

713 PM       LAKE KICKAPOO            TX       2.75 INCH HAIL
04/21/96     ARCHER

714 PM       VANOSS                   OK       0.88 INCH HAIL
04/21/96     PONTOTOC

715-725 PM   3 W DAVIS                OK       1.75 INCH HAIL
04/21/96     MURRAY

745 PM       CORDELL                  OK       1.75 INCH HAIL
04/21/96     WASHITA

704-707 PM   BLACKWELL                OK       1.0 INCH HAIL
04/21/96     KAY

740 PM       BETHANY                  OK       2.75 INCH HAIL
04/21/96     OKLAHOMA

704 PM       6 N YUKON                OK       1.75 INCH HAIL
04/21/96     CANADIAN

815 PM       2 N STERLING             OK       1.0 INCH HAIL
04/21/96     COMANCHE

FM

Local storm report, Apr 21, 11:30 PM CDT, 3 hours 5 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1125 PM CDT SUN APR 21 1996

TIME(CDT)   .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
DATE        ....COUNTY LOCATION....

740 PM      SHANNON                   TX   1.75 INCH HAIL
04/21/96    CLAY

741 PM      3 W ARCHER CITY           TX   1.75 INCH HAIL
04/21/96    ARCHER

755 PM      10 SW HENRIETTA           TX   2.5 INCH HAIL
04/21/96    CLAY

725 PM      2.5 SE DAVIS              OK   REPORTED TORNADO
04/21/96    MURRAY

807 PM      2 N GUTHRIE               OK   1.75 INCH HAIL
04/21/96    LOGAN

755 PM      ARROWHEAD LAKE            TX   2.5 INCH HAIL
04/21/96    CLAY

816 PM      HENRIETTA                 TX   1.75 INCH HAIL
04/21/96    CLAY

815 PM      ADA                       OK   0.88 INCH HAIL
04/21/96    PONTOTOC

835 PM      2 NE RUSH SPRINGS         OK   1.0 INCH HAIL
04/21/96    GRADY

858 PM      1 E JOY                   TX   0.88 INCH HAIL
04/21/96    CLAY

1047 PM     NOBLE                     OK   0.75 INCH HAIL
04/21/96    CLEVELAND

FM

Local storm report, Apr 22, 12:02 AM CDT, 2 hours 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>

Local storm report, Apr 22, 12:07 AM CDT, 2 hours 28 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 22, 1:08 AM CDT, 1 hour 27 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 22, 1:33 AM CDT, 1 hour 2 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>

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 21, 7:07 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Grady, Oklahoma	53 min
Apr 21, 7:12 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Tillman	63 min
Apr 21, 7:12 PM CDT	Severe Thunderstorm Warning	OUN	Caddo	63 min
Apr 21, 7:17 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Noble	43 min
Apr 21, 7:21 PM CDT	Tornado Warning	OUN	Hughes, Pontotoc	39 min
Apr 21, 7:21 PM CDT	Tornado Warning	OUN	Murray	39 min
Apr 21, 7:43 PM CDT	Severe Thunderstorm Warning	OUN	Washita	62 min
Apr 21, 7:49 PM CDT	Severe Thunderstorm Warning	OUN	Logan	41 min
Apr 21, 7:55 PM CDT	Tornado Warning	OUN	Hughes, Pontotoc	50 min
Apr 21, 8:04 PM CDT	Severe Thunderstorm Warning	OUN	Noble	41 min
Apr 21, 8:12 PM CDT	Severe Thunderstorm Warning	OUN	Payne	48 min
Apr 21, 8:16 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Grady	44 min
Apr 21, 8:20 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian	40 min
Apr 21, 8:28 PM CDT	Severe Thunderstorm Warning	OUN	Garfield	47 min
Apr 21, 8:30 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson	60 min
Apr 21, 8:37 PM CDT	Tornado Warning	OUN	Hughes	38 min
Apr 21, 8:38 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Oklahoma	37 min
Apr 21, 8:52 PM CDT	Severe Thunderstorm Warning	OUN	Love	68 min
Apr 21, 9:27 PM CDT	Severe Thunderstorm Warning	OUN	Seminole	33 min
Apr 21, 9:40 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, McClain, Pontotoc	50 min
Apr 21, 9:40 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	50 min
Apr 21, 9:43 PM CDT	Severe Thunderstorm Warning	OUN	Love	62 min
Apr 21, 9:52 PM CDT	Tornado Warning	OUN	Bryan	68 min
Apr 21, 10:05 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian	40 min
Apr 21, 10:32 PM CDT	Severe Thunderstorm Warning	OUN	Love, Marshall	58 min
Apr 21, 10:34 PM CDT	Severe Thunderstorm Warning	OUN	Grady	41 min
Apr 21, 10:44 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland	46 min
Apr 21, 10:52 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Bryan	68 min
Apr 21, 11:00 PM CDT	Tornado Warning	OUN	Bryan	45 min
Apr 21, 11:18 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie, Seminole	27 min
Apr 21, 11:31 PM CDT	Severe Thunderstorm Warning	OUN	Seminole	29 min
Apr 21, 11:42 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Bryan, Pushmataha	63 min
Apr 21, 11:42 PM CDT	Severe Thunderstorm Warning	OUN	Marshall	63 min
Apr 21, 11:48 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, McClain, Pontotoc	27 min
Apr 21, 11:48 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie, Seminole	27 min
Apr 21, 11:59 PM CDT	Tornado Warning	OUN	Pushmataha	61 min
Apr 22, 12:15 AM CDT	Severe Thunderstorm Warning	OUN	Hughes, Seminole	45 min
Apr 22, 12:39 AM CDT	Severe Thunderstorm Warning	OUN	Bryan	51 min
Apr 22, 12:49 AM CDT	Severe Thunderstorm Warning	OUN	Pontotoc	41 min
Apr 22, 12:50 AM CDT	Severe Thunderstorm Warning	OUN	Choctaw	40 min
Apr 22, 1:17 AM CDT	Severe Thunderstorm Warning	OUN	Coal, Hughes, Pontotoc	43 min
Apr 22, 1:33 AM CDT	Severe Thunderstorm Warning	OUN	Garvin, Murray, Pontotoc	42 min
Apr 22, 1:40 AM CDT	Severe Thunderstorm Warning	OUN	Bryan, Choctaw	50 min
Apr 22, 2:29 AM CDT	Severe Thunderstorm Warning	OUN	Choctaw	46 min
Apr 22, 4:04 AM CDT	Severe Thunderstorm Warning	OUN	Pushmataha	41 min
Apr 22, 4:07 AM CDT	Severe Thunderstorm Warning	OUN	Jefferson	68 min
Apr 22, 4:43 AM CDT	Severe Thunderstorm Warning	OUN	Pushmataha	32 min
Apr 21, 7:15 PM CDT	Severe Thunderstorm Warning	OUN	Archer, Clay, Wichita	45 min
Apr 21, 7:52 PM CDT	Severe Thunderstorm Warning	OUN	Archer, Clay	53 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1996 Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.