Alert archive / Oklahoma / Heat Advisories in 2016

Heat Advisory 19, NWS Tulsa, OK

July 31, 201616 counties in Oklahoma

NWS Tulsa, OK issued this heat advisory at Jul 31, 2016, 1:50 PM CDT for 16 counties in Oklahoma. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Jul 31, 2016, 1:50 PM CDT (18:50 UTC)
Expired
Jul 31, 2016, 7:00 PM CDT
In force
5 hr
Issued by
NWS Tulsa, OK

Counties Craig County, OK, Creek County, OK, Haskell County, OK, Latimer County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Pawnee County, OK, Pittsburg County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 34 km from the middle of the area, began a volume at 18:51 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 12:00Z, 6.8 hours before the alert went out and 170 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 12:00Z on 2016-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1036 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2016-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.193958Sfc1 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
1036 J/kg
Mixed-layer CIN
-171 J/kg
Mixed-layer LCL
1598 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this heat advisory 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 heat advisory went out at Jul 31, 12:29 PM CDT, 1 hour 21 minutes earlier.

Area forecast discussion, Jul 31, 12:29 PM CDT, 1 hour 21 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, Jul 31, 12:47 PM CDT, 1 hour 3 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
1247 PM CDT SUN JUL 31 2016

ARZ001-002-010-011-019-020-029-OKZ049-053>076-011030-
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-
1247 PM CDT SUN JUL 31 2016

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THUNDERSTORMS WITH DANGEROUS LIGHTNING.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND WESTERN ARKANSAS.
	ONSET...LATE AFTERNOON.

DANGEROUS HEAT.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA AND WESTERN ARKANSAS.
	ONSET...ONOGING.

DISCUSSION...
TEMPERATURES ARE EXPECTED TO TOP OUT IN THE 90S ACROSS MUCH OF
EASTERN OKLAHOMA AND WESTERN ARKANSAS THIS AFTERNOON WITH HEAT
INDEX VALUES RUNNING FROM THE UPPER 90S TO AROUND 104. THERE MAY
BE A FEW LOCATIONS THAT EVEN TOP OUT WITH A HEAT INDEX OF 105 TO 109 DEGREES.

ISOLATED TO WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE
LATE THIS AFTERNOON WITH THE BEST CHANCES ACROSS SOUTHEAST OKLAHOMA
INTO WESTERN ARKANSAS. THESE STORMS COULD BECOME STRONG TO MARGINALLY
SEVERE WITH WIND GUSTS AND LOCALLY HEAVY RAIN THE CONCERN.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
MONDAY THROUGH SATURDAY...DANGEROUS HEAT POTENTIAL.

EXTENDED DISCUSSION...
HOT AND HUMID CONDITIONS WILL INTENSIFY AND PREVAIL THROUGH
THE UPCOMING WEEK.  AFTERNOON HEAT INDEX VALUES AROUND 105
DEGREES WILL BE COMMON THROUGHOUT THE WEEK.  ANY THUNDERSTORM
CHANCES WILL REMAIN VERY LOW...AND PRIMARILY CONFINED TO THE
HIGHER TERRAIN OF FAR SOUTHEAST OKLAHOMA AND NORTHWEST ARKANSAS.

WWW.WEATHER.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 3:47 PM CDTSpecial Weather StatementTSASequoyah28 min
Jul 31, 4:14 PM CDTSpecial Weather StatementTSASequoyah31 min
Jul 31, 4:18 PM CDTSpecial Weather StatementTSAMcIntosh27 min
Jul 31, 4:23 PM CDTSevere Thunderstorm WarningTSASequoyah37 min
Jul 31, 4:50 PM CDTAreal Flood AdvisoryTSASequoyah115 min
Jul 31, 4:57 PM CDTSpecial Weather StatementTSASequoyah48 min
Jul 31, 5:40 PM CDTSpecial Weather StatementTSASequoyah35 min
Jul 31, 2:00 AM CDTSpecial Weather StatementTSABenton45 min
Jul 31, 2:09 AM CDTSevere Thunderstorm WarningTSABenton36 min
Jul 31, 2:17 AM CDTSpecial Weather StatementTSAMadison43 min
Jul 31, 2:50 AM CDTSpecial Weather StatementTSABenton40 min

Nearby

Heat Advisories in Oklahoma, 2016Every heat advisory 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.