Alert archive / Oklahoma / Heat Advisories in 2017
Heat Advisory 7, NWS Tulsa, OK
NWS Tulsa, OK issued this heat advisory at Aug 15, 2017, 3:30 PM CDT for 7 counties in Oklahoma. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Aug 15, 2017, 3:30 PM CDT (20:30 UTC)
- Expired
- Aug 15, 2017, 7:03 PM CDT
- In force
- 4 hr
- Issued by
- NWS Tulsa, OK
Counties Haskell County, OK, Latimer County, OK, McIntosh County, OK, Muskogee County, OK, Okmulgee County, OK, Pittsburg County, OK, Wagoner County, OK
The radar
The Tulsa radar (KINX), 89 km from the middle of the area, began a volume at 20:31 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, 8.5 hours before the alert went out and 171 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
- 1305 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 1087 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 151 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
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 Aug 15, 3:10 PM CDT, 20 minutes earlier.
Area forecast discussion, Aug 15, 3:10 PM CDT, 20 minutes before
Area Forecast Discussion National Weather Service Tulsa OK 310 PM CDT Tue Aug 15 2017 .DISCUSSION... Messy forecast over the next few days, with multiple rounds of showers and thunderstorms, including some continued heavy rain potential, through at least the end of this week. Immediate concern is the developing area of showers and thunderstorms near the I-35 corridor across central and northern Oklahoma. This convection should continue to increase as a mid level wave moves to the northeast across northern Oklahoma and into southern Kansas this evening. Instability is higher across northeast Oklahoma than in areas near I-35, per current mesoanalysis, which should lead to an increase in the intensity as the showers/storms push eastward. At the very least, the stronger storms should pose a locally heavy rain threat, with at least some potential for hail and strong winds as well. Most the afternoon and evening storms should be north of the Kansas and Missouri borders by midnight. There should be a lull in the shower and storm activity across most of the forecast area through much of tomorrow morning, but chances should increase once again during the afternoon and definitely by evening as a stronger upper level disturbance and an associated front approach the region. These storms may pose a greater threat of severe weather, given the stronger wind fields, in conjunction with high instability. The aforementioned front will push through the forecast area Thursday, moving the thunderstorm potential with it to the southeast. Yet another disturbance will approach from the west late Thursday night and into Friday, with an accordant increase in the thunderstorm potential, generally from southwest to northeast. Things may finally dry out somewhat during the weekend, with thunderstorm potential likely limited to diurnal afternoon development by early next week. Upper level high pressure will build into the forecast area next week, which should bring a return to more seasonal temperatures by Monday. && .PRELIMINARY POINT TEMPS/POPS... TUL 76 89 72 90 / 70 60 60 10 FSM 77 92 77 90 / 20 30 50 50 MLC 76 88 75 90 / 30 30 50 40 BVO 73 91 71 88 / 70 60 60 10 FYV 72 86 73 86 / 30 40 50 40 BYV 73 88 72 87 / 30 40 50 40 MKO 77 88 74 89 / 40 50 60 30 MIO 74 90 70 87 / 50 60 60 10 F10 76 88 73 89 / 50 50 60 20 HHW 76 91 76 91 / 10 20 40 40 && .TSA WATCHES/WARNINGS/ADVISORIES... OK...None. AR...None. && LONG TERM....22
Hazardous weather outlook, Aug 15, 11:13 AM CDT, 4 hours 17 minutes before
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</html>The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 8:30 PM CDT | Special Weather Statement | TSA | Choctaw | 45 min |
| Aug 15, 2:10 AM CDT | Areal Flood Advisory | TSA | LeFlore | 3 hr |
| Aug 15, 3:56 AM CDT | Areal Flood Advisory | TSA | LeFlore | 3 hr |
| Aug 15, 3:44 PM CDT | Special Weather Statement | TSA | Creek, Osage, Pawnee | 31 min |
| Aug 15, 4:12 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee, Tulsa | 63 min |
| Aug 15, 5:03 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Rogers, Tulsa, Wagoner, Washington | 42 min |
| Aug 15, 5:47 PM CDT | Special Weather Statement | TSA | Rogers, Tulsa, Wagoner | 58 min |
| Aug 15, 5:56 PM CDT | Areal Flood Advisory | TSA | Creek, Okfuskee, Okmulgee, Osage, Tulsa | 3 hr |
| Aug 15, 6:02 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Rogers, Tulsa, Wagoner | 31 min |
| Aug 15, 6:24 PM CDT | Special Weather Statement | TSA | Okfuskee, Okmulgee | 51 min |
| Aug 15, 3:47 AM CDT | Areal Flood Advisory | TSA | Franklin | 3 hr |
| Aug 15, 5:10 AM CDT | Flash Flood Warning | TSA | Franklin | 4 hr |
| Aug 15, 5:43 AM CDT | Areal Flood Advisory | TSA | Franklin | 3 hr |
| Aug 15, 6:13 AM CDT | Flash Flood Warning | TSA | Crawford, Franklin | 3 hr |
| Aug 15, 8:54 AM CDT | Areal Flood Warning | TSA | Crawford, Franklin | 9 hr |
| Aug 15, 10:09 AM CDT | River Flood Advisory | TSA | Crawford, Franklin | 24 hr |
Nearby
Heat Advisories in Oklahoma, 2017Heat Advisories in Arkansas, 2017Every heat advisory in 2017
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.