Alert archive / Oklahoma / Dense Fog Advisories in 2021

Dense Fog Advisory 5, NWS Tulsa, OK

May 26, 202114 counties in Oklahoma

NWS Tulsa, OK issued this dense fog advisory at May 26, 2021, 5:24 AM CDT for 14 counties in Oklahoma. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: May 26, 2021, 5:24 AM CDT (10:24 UTC)
Expired: May 26, 2021, 9:00 AM CDT
In force: 4 hr
Issued by: NWS Tulsa, OK

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

The radar

The Tulsa radar (KINX), 8 km from the middle of the area, began a volume at 10:28 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

Springfield, MO (KSGF), launched 00:00Z, 10.4 hours before the alert went out and 185 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: 102 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 511 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this dense fog 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 dense fog advisory went out at May 26, 2:53 AM CDT, 2 hours 31 minutes earlier.

Area forecast discussion, May 26, 2:53 AM CDT, 2 hours 31 minutes before

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Hazardous weather outlook, May 26, 4:59 AM CDT, 25 minutes before

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<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 7:03 PM CDT	Flash Flood Warning	TSA	LeFlore	3 hr
May 26, 12:42 AM CDT	River Flood Warning	TSA	LeFlore	20 hr
May 26, 12:43 AM CDT	River Flood Warning	TSA	LeFlore	44 hr

Nearby

Dense Fog Advisories in Oklahoma, 2021 Dense Fog Advisories in Arkansas, 2021 Every dense fog advisory in 2021

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.