Alert archive / Oklahoma / Special Weather Statements in 2016

Special Weather Statement, NWS Tulsa, OK

April 29, 2016McIntosh County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Apr 29, 2016, 4:26 AM CDT for McIntosh County, Oklahoma. 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 29, 2016, 4:26 AM CDT (09:26 UTC)
Expired
Apr 29, 2016, 5:00 AM CDT
In force
34 min
Issued by
NWS Tulsa, OK

County McIntosh County, OK

The radar

The Tulsa radar (KINX), 97 km from the middle of the area, began a volume at 09:24 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

Norman, OK (KOUN), launched 00:00Z, 9.4 hours before the alert went out and 145 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2016-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2016-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2063 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
242 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!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 Tulsa, OK wrote its last area forecast discussion before this special weather statement went out at Apr 29, 4:06 AM CDT, 20 minutes earlier.

Area forecast discussion, Apr 29, 4:06 AM CDT, 20 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 28, 4:48 PM CDT, 11 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
448 PM CDT THU APR 28 2016

ARZ001-002-010-011-019-020-029-OKZ049-053>076-291030-
ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK-
CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK-
LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK-
OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK-
PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK-
WASHINGTON OK-WASHINGTON AR-
448 PM CDT THU APR 28 2016

THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.

.DAY ONE...TONIGHT.

SEVERE THUNDERSTORM.
	RISK...ELEVATED.
	AREA...SOUTHEAST OKLAHOMA.
	ONSET...LATE TONIGHT.

FLASH FLOOD.
	RISK...LIMITED.
	AREA...SOUTHEAST OKLAHOMA.
	ONSET...LATE TONIGHT.

HEAVY RAIN.
	RISK...LIMITED.
	AREA...SOUTHEAST OKLAHOMA.
	ONSET...LATE TONIGHT.

DISCUSSION...
THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE THIS EVENING ACROSS NORTH TEXAS
NEAR A WARM FRONT AND MOVE INTO SOUTHEAST OKLAHOMA DURING THE OVERNIGHT
HOURS. SOME OF THESE STORMS COULD BE STRONG TO SEVERE WITH LARGE HAIL
THE MAIN CONCERN. LOCALLY HEAVY RAIN WILL ALSO BE POSSIBLE.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
ACTIVATION OF THE REGIONAL SPOTTER NETWORK LIKELY.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.
FRIDAY...SEVERE THUNDERSTORM POTENTIAL...HEAVY RAIN POTENTIAL.
SATURDAY...SEVERE THUNDERSTORM POTENTIAL.
SUNDAY...NO HAZARDS.
MONDAY...THUNDERSTORM POTENTIAL.
TUESDAY AND WEDNESDAY...NO HAZARDS.

EXTENDED DISCUSSION...

STORMS WILL LIKELY BE ONGOING ACROSS EASTERN OKLAHOMA AND WESTERN
ARKANSAS FRIDAY MORNING. ADDITIONAL STORMS WILL DEVELOP LATER IN
THE DAY TO OUR WEST AND WILL MOVE INTO EASTERN OKLAHOMA AND WESTERN
ARKANSAS DURING THE LATE AFTERNOON AND EVENING. THE SEVERITY AND
TYPE OF SEVERE WEATHER THAT OCCURS WITH THESE STORMS WILL DEPEND
ON HOW FAR NORTH THE WARM FRONT RETREATS. LARGE HAIL WILL BE THE
PRIMARY THREAT ON THE COOL SIDE OF THE FRONT...WHILE TORNADOES...
HAIL AND DAMAGING WINDS WOULD BE POSSIBLE ALONG AND SOUTH OF THE
BOUNDARY. AT THIS TIME...EAST CENTRAL AND SOUTHEAST OKLAHOMA HAVE
THE GREATEST POTENTIAL FOR SEVERE STORMS

IF THE WARM FRONT SETS UP NEAR THE RED RIVER ON FRIDAY...THE SETUP
WOULD FAVOR HEAVY RAINFALL AND POSSIBLE FLOODING POTENTIAL ACROSS
SOUTHEAST OKLAHOMA AS WELL. ONE TO THREE INCHES OF RAINFALL ARE
POSSIBLE.

SEVERE STORM POTENTIAL WILL CONTINUE INTO SATURDAY BUT WILL DIMINISH
FROM WEST TO EAST LATER IN THE DAY AS A PACIFIC COLD FRONT SWEEPS
ACROSS THE AREA.

WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.

In the hours before

Local storm report, Apr 28, 10:54 PM CDT, 5 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1054 PM CDT THU APR 28 2016

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

1210 AM     TSTM WND DMG     5 W STILWELL            35.81N 94.72W
04/27/2016                   ADAIR              OK   PUBLIC

            NUMEROUS TREES DOWN. STRUCTURE DAMAGE TO BARN.

&&

JBM
Special weather statement, Apr 29, 4:26 AM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
426 AM CDT FRI APR 29 2016

OKZ065-066-070-071-073-074-291000-
OKFUSKEE OK-MUSKOGEE OK-PITTSBURG OK-MCINTOSH OK-HASKELL OK-
OKMULGEE OK-
426 AM CDT FRI APR 29 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN OKFUSKEE...
SOUTHEASTERN OKMULGEE...MCINTOSH...NORTHERN PITTSBURG...WEST CENTRAL
MUSKOGEE AND WEST CENTRAL HASKELL COUNTIES UNTIL 500 AM CDT...

AT 426 AM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR HANNA...MOVING
NORTHEAST AT 40 MPH.

NICKEL SIZE HAIL WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH INCLUDE...
EUFAULA...                        CHECOTAH...
CROWDER...                        CANADIAN...
INDIANOLA...                      GRAYSON...
COUNCIL HILL...                   HANNA...
RENTIESVILLE...                   HOFFMAN...
STIDHAM...                        ARROWHEAD STATE PARK...
LAKE EUFAULA STATE PARK...        VIVIAN...
RAIFORD...                        BLOCKER...
HITCHITA...                       ONAPA...
PIERCE...                         VERNON...

THIS INCLUDES INTERSTATE 40 IN OKLAHOMA BETWEEN MILE MARKERS 240 AND
273.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT FOR
SOUTHEASTERN OKLAHOMA.

LAT...LON 3564 9580 3545 9532 3501 9555 3514 9601
      3515 9593 3529 9598 3529 9606
TIME...MOT...LOC 0926Z 209DEG 43KT 3524 9585

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 3:14 AM CDTSevere Thunderstorm WarningTSAChoctaw31 min
Apr 29, 3:45 AM CDTSevere Thunderstorm WarningTSAChoctaw, Pushmataha45 min
Apr 29, 4:28 AM CDTSevere Thunderstorm WarningTSALatimer, LeFlore, Pushmataha47 min
Apr 29, 6:22 AM CDTAreal Flood AdvisoryTSALatimer, LeFlore, Pittsburg, Pushmataha3 hr
Apr 29, 8:46 AM CDTRiver Flood AdvisoryTSAPushmataha37 hr
Apr 29, 2:09 PM CDTSpecial Weather StatementTSAOsage51 min
Apr 29, 2:27 PM CDTSevere Thunderstorm WarningTSAOsage33 min
Apr 29, 3:07 PM CDTSpecial Weather StatementTSAPawnee23 min
Apr 29, 3:21 PM CDTSpecial Weather StatementTSALeFlore24 min
Apr 29, 3:46 PM CDTSevere Thunderstorm WarningTSALeFlore, Sequoyah44 min
Apr 29, 3:49 PM CDTSevere Thunderstorm WarningTSALatimer, LeFlore, Pushmataha23 min
Apr 29, 3:57 PM CDTSpecial Weather StatementTSAOsage33 min
Apr 29, 4:12 PM CDTSpecial Weather StatementTSAPushmataha33 min
Apr 29, 4:41 PM CDTSevere Thunderstorm WarningTSAAdair, Sequoyah49 min
Apr 29, 4:43 PM CDTSpecial Weather StatementTSATulsa32 min
Apr 29, 4:46 PM CDTSevere Thunderstorm WarningTSAChoctaw, Pushmataha29 min
Apr 29, 5:04 PM CDTSevere Thunderstorm WarningTSALeFlore22 min
Apr 29, 5:06 PM CDTSpecial Weather StatementTSAOkmulgee24 min
Apr 29, 5:18 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee, Okmulgee42 min
Apr 29, 5:34 PM CDTSevere Thunderstorm WarningTSACreek, Rogers, Tulsa25 min
Apr 29, 5:35 PM CDTSpecial Weather StatementTSAPushmataha25 min
Apr 29, 5:41 PM CDTSevere Thunderstorm WarningTSAHaskell, LeFlore, Sequoyah20 min
Apr 29, 5:48 PM CDTSpecial Weather StatementTSAOttawa27 min
Apr 29, 5:49 PM CDTSevere Thunderstorm WarningTSAMayes, Muskogee, Okmulgee, Rogers, Wagoner41 min
Apr 29, 6:02 PM CDTSevere Thunderstorm WarningTSACreek, Okfuskee43 min
Apr 29, 6:18 PM CDTSevere Thunderstorm WarningTSAMayes, Rogers, Wagoner19 min
Apr 29, 6:30 PM CDTSpecial Weather StatementTSACraig15 min
Apr 29, 6:35 PM CDTSpecial Weather StatementTSACherokee25 min
Apr 29, 6:37 PM CDTTornado WarningTSAOkfuskee38 min
Apr 29, 6:44 PM CDTSpecial Weather StatementTSACraig31 min
Apr 29, 6:59 PM CDTSevere Thunderstorm WarningTSAOkmulgee31 min
Apr 29, 4:11 PM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Sebastian34 min
Apr 29, 4:36 PM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Madison, Washington39 min
Apr 29, 5:14 PM CDTSevere Thunderstorm WarningTSACrawford, Washington23 min
Apr 29, 5:51 PM CDTSevere Thunderstorm WarningTSABenton9 min

Nearby

Special Weather Statements in Oklahoma, 2016Every special weather statement in 2016

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.