Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 381, NWS Norman, OK

May 7, 2008Lincoln County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 7, 2008, 6:12 PM CDT for Lincoln County, Oklahoma. It was in force for 48 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: May 7, 2008, 6:12 PM CDT (23:12 UTC)
Expired: May 7, 2008, 7:00 PM CDT
In force: 48 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

County Lincoln County, OK

The radar

The Norman radar (KTLX), 55 km from the middle of the area, began a volume at 23:14 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 7, 1:33 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 12:00Z, 11.2 hours before the alert went out and 115 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: 1715 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 612 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 5.1

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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 7, 3:19 PM CDT, 2 hours 53 minutes earlier.

Area forecast discussion, May 7, 3:19 PM CDT, 2 hours 53 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
319 PM CDT WED MAY 7 2008

.DISCUSSION...
THE LARGE AREA OF CONVECTION CURRENTLY COVERING MOST OF OUR
FORECAST AREA IS EXPECTED TO SHIFT NORTHEAST THIS EVENING AS THE
UPPER LOW MOVES INTO EASTERN OKLAHOMA. UNTIL THEN... WE EXPECT THE
USUAL ARRANGEMENT OF ADVERSE WEATHER... RANGING FROM A RISK OF
TORNADIC SUPERCELLS ACROSS OUR SOUTH-CENTRAL AND SOUTHEAST
COUNTIES... TO A POSSIBILITY OF SMALL FUNNELS UNDER THE UPPER
LOW... TO SIMPLY RAIN AND SHOWERS ACROSS MOST OF THE NORTH.

AS THE LOW MOVES EAST INTO EASTERN OKLAHOMA THIS EVENING... THE
WESTERN EDGE OF THE RAIN SHOULD BEGIN TO CROSS OUR FORECAST
AREA... AND ALL RAIN IS EXPECTED TO END BY TOMORROW MORNING.

ANOTHER UPPER-LEVEL DISTURBANCE WILL BRING A CHANCE OF SHOWERS AND
STORMS AGAIN TOMORROW NIGHT... AND ANOTHER OVER THE WEEKEND.

ONLY THE FIRST PERIOD OF THIS FORECAST ISSUANCE WILL CONTAIN
SIGNIFICANT CHANGES FROM THE PREVIOUS FORECAST.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  53  80  56  79 /  50   0  30   0
HOBART OK         52  82  56  80 /  20   0  30   0
WICHITA FALLS TX  57  85  59  86 /  20   0  20  10
GAGE OK           49  78  50  81 /  20  10  30   0
PONCA CITY OK     53  71  56  76 /  70   0  40   0
DURANT OK         60  81  62  83 /  40   0  20  10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

23/23

Hazardous weather outlook, May 7, 5:59 PM CDT, 13 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
559 PM CDT WED MAY 7 2008

OKZ004>048-050>052-TXZ083>090-081200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
559 PM CDT WED MAY 7 2008

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
CENTRAL AND SOUTHERN OKLAHOMA THIS EVENING.

LOCATION...
THE SLIGHT RISK AREA IS ALONG AND SOUTH OF A LINE FROM PONCA CITY...
TO KINGFISHER...TO CHICKASHA... TO MARIETTA OKLAHOMA.

TIMING...
SEVERE STORMS WILL BE POSSIBLE THROUGH 10 PM.

IMPACTS...
HAIL TO THE SIZE OF GOLFBALLS AND WIND GUSTS TO 65 MPH WILL BE THE
MAIN CONCERNS. ISOLATED TORNADOES WILL ALSO BE POSSIBLE.

RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL IN THE
SLIGHT RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS THROUGH
THIS EVENING.

DISCUSSION...
SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS
PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS THROUGH THIS EVENING AS AN
UPPER LEVEL LOW MOVES NORTHEAST ACROSS CENTRAL INTO EASTERN
OKLAHOMA. A SURFACE LOW OVER OKLAHOMA CITY LATE THIS AFTERNOON WILL
ALSO MOVE NORTHEAST ACROSS OKLAHOMA THIS EVENING... WITH A DRYLINE
EXTENDING SOUTH INTO TEXAS. A FRONT ALSO EXTENDED FROM THE LOW INTO
NORTHEAST OKLAHOMA LATE THIS AFTERNOON. COLD TEMPERATURES ALOFT WILL
CONTINUE TO MOVE ACROSS THE AREA WITH THE UPPER LOW. UNSTABLE
CONDITIONS WILL CONTINUE TO DEVELOP EAST OF THE SURFACE AND UPPER
LOW. SEVERE STORMS WILL BE POSSIBLE ACROSS THE RISK AREA INTO THIS
EVENING. VERTICAL WIND SHEAR AND MODERATE INSTABILITY WILL BE
SUFFICIENT TO SUPPORT SUPERCELLS INTO THIS EVENING. WHILE LARGE HAIL
AND STRONG WINDS WILL BE THE PRIMARY SEVERE WEATHER CONCERNS...
TORNADOES WILL BE POSSIBLE. LOCALLY HEAVY RAIN WILL ALSO BE
POSSIBLE. THE SEVERE WEATHER POTENTIAL WILL END LATER THIS EVENING
AS THE UPPER LOW MOVES INTO EASTERN OKLAHOMA.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT THURSDAY MAY 8.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA... 100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR... 100 PERCENT.

OTHER HAZARDOUS WEATHER...
LOCALLY HEAVY RAINFALL WILL BE POSSIBLE ACROSS MUCH OF OKLAHOMA AND
PARTS OF WESTERN NORTH TEXAS. THE HEAVY RAINFALL MAY LEAD TO
FLOODING... ESPECIALLY IN LOW-LYING AND POORLY DRAINED AREAS.

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

THUNDERSTORM OUTLOOK...
THERE WILL BE A CHANCE OF THUNDERSTORMS AGAIN THURSDAY NIGHT AND
FRIDAY MORNING... BUT SEVERE STORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
NONE.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 7 AM
THURSDAY.

MAXWELL

In the hours before

Local storm report, May 7, 5:35 PM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
535 PM CDT WED MAY 07 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0528 PM     TSTM WND GST     NOBLE                   35.14N 97.39W
05/07/2008  E75 MPH          CLEVELAND          OK   NWS EMPLOYEE

            ESTIMATED AT 70 TO 75 MPH.

&&

DW

Local storm report, May 7, 5:43 PM CDT, 29 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, May 7, 5:53 PM CDT, 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
553 PM CDT WED MAY 7 2008

OKZ013-019-020-072315-
LOGAN OK-NOBLE OK-PAYNE OK-
553 PM CDT WED MAY 7 2008

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR LOGAN...NOBLE AND PAYNE
COUNTIES.

A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM 8 MILES NORTHWEST OF
MULHALL TO 7 MILES SOUTHWEST OF MERIDIAN AT 553 PM CDT...MOVING
NORTHEAST AT 32 MPH.

SMALL HAIL AND WINDS AROUND 50 MPH ARE POSSIBLE.

Local storm report, May 7, 5:54 PM CDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
554 PM CDT WED MAY 07 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0545 PM     TSTM WND GST     2 S ARDMORE             34.15N 97.14W
05/07/2008  M69 MPH          CARTER             OK   AMATEUR RADIO

&&

TAYLOR

Local storm report, May 7, 6:05 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
605 PM CDT WED MAY 07 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0512 PM     TSTM WND GST     6 NW OKLAHOMA CITY      35.53N 97.59W
05/07/2008  E70 MPH          OKLAHOMA           OK   PUBLIC

            SMALL TO MEDIUM SIZED TREES BENT OVER.

&&

TAYLOR

Local storm report, May 7, 6:08 PM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
608 PM CDT WED MAY 07 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0555 PM     HAIL             5 S DICKSON             34.12N 96.99W
05/07/2008  E1.25 INCH       CARTER             OK   EMERGENCY MNGR

&&

TAYLOR

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 11:48 PM CDT	Severe Thunderstorm Warning	OUN	Tillman	42 min
May 7, 12:58 AM CDT	High Wind Warning	OUN	Greer, Harmon, Jackson, Kiowa	71 min
May 7, 2:58 AM CDT	Severe Thunderstorm Warning	OUN	Jackson, Kiowa, Tillman	47 min
May 7, 3:31 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Tillman	44 min
May 7, 3:52 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Grady	38 min
May 7, 4:12 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Grady, Stephens	21 min
May 7, 5:44 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Garvin, Grady, McClain, Pottawatomie, Stephens	46 min
May 7, 6:38 AM CDT	Severe Thunderstorm Warning	OUN	Johnston, Lincoln, Pottawatomie, Seminole	52 min
May 7, 6:41 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie, Seminole	23 min
May 7, 10:19 AM CDT	Areal Flood Advisory	OUN	Oklahoma	116 min
May 7, 12:13 PM CDT	River Flood Warning	OUN	Pottawatomie, Seminole	22 hr
May 7, 2:24 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson, Stephens	51 min
May 7, 2:55 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray	65 min
May 7, 3:32 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain, Oklahoma, Pottawatomie	43 min
May 7, 3:37 PM CDT	Areal Flood Advisory	OUN	Blaine, Caddo	3 hr
May 7, 3:37 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson	38 min
May 7, 3:40 PM CDT	Severe Thunderstorm Warning	OUN	Comanche	40 min
May 7, 4:03 PM CDT	Areal Flood Advisory	OUN	Canadian, Oklahoma	3 hr
May 7, 4:05 PM CDT	Severe Thunderstorm Warning	OUN	Stephens	40 min
May 7, 4:10 PM CDT	Severe Thunderstorm Warning	OUN	Love	65 min
May 7, 4:23 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray	52 min
May 7, 4:33 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Grady	42 min
May 7, 4:55 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Oklahoma	50 min
May 7, 5:05 PM CDT	Tornado Warning	OUN	Oklahoma	25 min
May 7, 5:08 PM CDT	Flash Flood Warning	OUN	Canadian, Oklahoma	3 hr
May 7, 5:14 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Coal, Johnston, Love, Marshall, Murray and 1 more	61 min
May 7, 5:20 PM CDT	Tornado Warning	OUN	Oklahoma	36 min
May 7, 5:33 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Pottawatomie	42 min
May 7, 5:39 PM CDT	Areal Flood Advisory	OUN	Cleveland, Pottawatomie	2 hr
May 7, 5:39 PM CDT	Tornado Warning	OUN	Lincoln, Pottawatomie, Seminole	31 min
May 7, 5:45 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Bryan, Coal, Johnston, Marshall	60 min
May 7, 6:07 PM CDT	Areal Flood Advisory	OUN	Logan	3 hr
May 7, 6:08 PM CDT	Severe Thunderstorm Warning	OUN	Hughes	52 min
May 7, 6:16 PM CDT	Severe Thunderstorm Warning	OUN	Coal, Johnston, Pontotoc	30 min
May 7, 6:36 PM CDT	Flash Flood Warning	OUN	Logan	3 hr
May 6, 9:46 PM CDT	Severe Thunderstorm Warning	OUN	Knox	34 min
May 6, 9:48 PM CDT	Severe Thunderstorm Warning	OUN	Foard	42 min
May 6, 11:44 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman	46 min
May 7, 1:50 AM CDT	Areal Flood Advisory	OUN	Hardeman, Wilbarger	4 hr
May 7, 2:53 AM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman	28 min
May 7, 2:32 PM CDT	Severe Thunderstorm Warning	OUN	Knox	58 min
May 7, 3:50 PM CDT	Severe Thunderstorm Warning	OUN	Clay	25 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2008 Every severe thunderstorm warning in 2008

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.