Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 466, NWS Norman, OK

June 27, 2001Bryan County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 27, 2001, 12:11 PM CDT for Bryan County, Oklahoma. It was in force for 49 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: Jun 27, 2001, 12:11 PM CDT (17:11 UTC)
Expired: Jun 27, 2001, 1:00 PM CDT
In force: 49 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Bryan County, OK

The radar

The Norman radar (KTLX), 179 km from the middle of the area, began a volume at 17:13 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

Fort Worth, TX (KFWD), launched 12:00Z, 5.2 hours before the alert went out and 158 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: 2007 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 1047 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 66 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 Jun 27, 10:52 AM CDT, 1 hour 19 minutes earlier.

Area forecast discussion, Jun 27, 10:52 AM CDT, 1 hour 19 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1052 AM CDT WED JUN 27 2001

THIN BAND OF STRONG TO OCCASIONALLY SEVERE CONVECTION CONTINUES
MAINLY EAST OF I-35 THIS MORNING.  RUC SHOWS WAA WEAKENING THIS
MORNING AS WINDS BACK WITH BEST AREA OF CONTINUED DEVELOPMENT
ACROSS SOUTHEAST COUNTIES.  CLOUDS AND RAIN WILL KEEP AFTERNOON
HIGHS LOWER THAN GOING FORECAST AND WILL ALSO HELP IN MORE DEVELOPMENT
THIS AFTERNOON.

.OUN...
OK...NONE.
TX...NONE.

6

In the hours before

Local storm report, Jun 27, 10:31 AM CDT, 1 hour 40 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1031 AM CDT WED JUN 27 2001

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

1020 AM    1 E CHOCTAW               OK   1.00 INCH HAIL
06/27/01   OKLAHOMA                       RPT BY FIRE DPT.

CW

Local storm report, Jun 27, 10:44 AM CDT, 1 hour 27 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1044 AM CDT WED JUN 27 2001

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

1044 AM    P.D. IN TISHOMINGO        OK   .75 INCH HAIL
06/27/01   JOHNSTON

CW

Local storm report, Jun 27, 11:12 AM CDT, 59 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1112 AM CDT WED JUN 27 2001

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

1110 AM    IN CHOCTAW                OK   1.00 INCH HAIL
06/27/01   OKLAHOMA                       BY PUBLIC

1112 AM    1/2 MI S I-240 ON PEEBLY OK   FLOODING
06/27/01   OKLAHOMA                       FLOODING ACROSS ROAD. ROAD
                                          INPASSABLE. BY NWS
                                          EMPLOYEE.

CW

Local storm report, Jun 27, 11:34 AM CDT, 37 minutes before

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Local storm report, Jun 27, 11:37 AM CDT, 34 minutes before

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Local storm report, Jun 27, 11:55 AM CDT, 16 minutes before

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<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>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 9:10 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Oklahoma	50 min
Jun 27, 9:43 AM CDT	Severe Thunderstorm Warning	OUN	Johnston	47 min
Jun 27, 9:57 AM CDT	Flash Flood Warning	OUN	Cleveland, Oklahoma, Pottawatomie	3 hr
Jun 27, 10:01 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Oklahoma	44 min
Jun 27, 10:38 AM CDT	Severe Thunderstorm Warning	OUN	Johnston	52 min
Jun 27, 11:08 AM CDT	Severe Thunderstorm Warning	OUN	Logan	52 min
Jun 27, 11:12 AM CDT	Severe Thunderstorm Warning	OUN	Oklahoma	48 min
Jun 27, 11:16 AM CDT	Severe Thunderstorm Warning	OUN	Atoka	59 min
Jun 27, 11:19 AM CDT	Flash Flood Warning	OUN	Johnston	3 hr
Jun 27, 6:50 PM CDT	Severe Thunderstorm Warning	OUN	Custer	25 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2001 Every severe thunderstorm warning in 2001

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.