Alert archive / Oklahoma / Heat Advisories in 2022
Heat Advisory 21, NWS Norman, OK
NWS Norman, OK issued this heat advisory at Jul 19, 2022, 4:11 PM CDT for 14 counties in Oklahoma; Foard County, Hardeman County, Knox County, Texas. It took effect at Jul 20, 2022, 1:00 PM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Jul 19, 2022, 4:11 PM CDT (21:11 UTC)
- In effect from
- Jul 20, 2022, 1:00 PM CDT
- Expired
- Jul 20, 2022, 8:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS Norman, OK
Counties Alfalfa County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Garfield County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Major County, OK, Noble County, OK, Foard County, TX, Hardeman County, TX, Knox County, TX
The radar
The Norman radar (KTLX), 123 km from the middle of the area, began a volume at 21:15 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, 9.2 hours before the alert went out and 114 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.
- Mixed-layer CAPE
- 52 J/kg
- Mixed-layer CIN
- -768 J/kg
- Mixed-layer LCL
- 2281 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Norman, OK wrote its last area forecast discussion before this heat advisory went out at Jul 19, 4:10 PM CDT, 1 minute earlier.
Area forecast discussion, Jul 19, 4:10 PM CDT, 1 minute before
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</html>Hazardous weather outlook, Jul 19, 11:47 AM CDT, 4 hours 24 minutes before
Hazardous Weather Outlook National Weather Service Norman OK 1147 AM CDT Tue Jul 19 2022 OKZ004>048-050>052-TXZ083>090-201700- 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- 1147 AM CDT Tue Jul 19 2022 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Through Tonight... .Excessive Heat... Temperatures and heat index values will exceed 110 degrees across much of Oklahoma and western north Texas. Adhere to heat advisory and excessive heat warning recommendations. .Fire Weather... Near-critical fire weather conditions are expected this afternoon in parts of southwestern Oklahoma and western north Texas with a broader area of elevated conditions. .Thunderstorms... A few thunderstorms are possible this evening and overnight. .DAYS TWO THROUGH SEVEN...Wednesday through Monday... .Excessive Heat... A prolonged period of triple digit temperatures is expected to last through at least the end of the week. .Fire Weather... Elevated fire weather conditions are expected Wednesday and again next weekend. .Thunderstorms... A few thunderstorms could be possible Wednesday afternoon and evening then again on Thursday, especially across southeast Oklahoma and adjacent parts of north Texas. Gusty winds and cloud to ground lightning are the main concerns. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook. Mahale
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 2:00 AM CDT | Red Flag Warning | OUN | Beckham, Caddo, Comanche, Cotton, Custer, Greer and 6 more | 20 hr |
| Jul 19, 2:01 AM CDT | Excessive Heat Warning | OUN | Atoka, Bryan, Carter, Cleveland, Coal, Comanche and 19 more | 42 hr |
| Jul 19, 2:01 AM CDT | Heat Advisory | OUN | Cleveland, Comanche, Cotton, Grady, McClain, Pottawatomie | 14 hr |
Nearby
Heat Advisories in Oklahoma, 2022Heat Advisories in Texas, 2022Every heat advisory in 2022
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.