Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 218, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 22, 2019, 3:45 PM CDT for LeFlore County, Sequoyah County, Oklahoma. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 22, 2019, 3:45 PM CDT (20:45 UTC)
- Expired
- Jun 22, 2019, 4:30 PM CDT
- In force
- 45 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties LeFlore County, OK, Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 35 km from the middle of the area, began a volume at 20:46 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 12:00Z, 8.8 hours before the alert went out and 207 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
- 3189 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 666 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 228 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 22, 3:10 PM CDT, 35 minutes earlier.
Area forecast discussion, Jun 22, 3:10 PM CDT, 35 minutes before
Area Forecast Discussion
National Weather Service Tulsa OK
310 PM CDT Sat Jun 22 2019
.DISCUSSION...
Main forecast concerns continue to be the severe thunderstorm
and heavy rainfall/flooding potential through early Monday
morning. The existing Flash Flood Watch has been expanded
southeastward into southeast Oklahoma and western Arkansas.
Scattered thunderstorm continue to develop this afternoon across
parts of southeast and east central Oklahoma, as well as west
central Arkansas, within the 850 mb moisture maximum in response
to a mid level disturbance lifting northward out of Texas. These
are currently remaining in check intensity wise, but some
strengthening could occur through the rest of the afternoon given
how much instability - around 5 kJ/kg on mesoanalysis - is
present across the region. Additional development is still
expected later tonight along the approaching cold front to our
northwest that would first affect northeast Oklahoma during the
evening hours. Severe thunderstorms remain most likely to the
northwest of Tulsa this evening associated with the cold front
development, with large hail and damaging winds the main threats,
outside of the flooding potential. Precipitable water values
approaching 2 inches exist on current mesoanalysis, and this
should further increase given the strong southerly low level flow
that is expected to continue. These well above normal precipitable
water values will lead to very efficient rainfall production,
with the potential for very high rainfall rates areawide. Overall
coverage may wane some through the morning hours tomorrow, before
expanding again during the afternoon along the cold front as the
upper level trough moves into the central United States. Highest
concern severe weather and flooding wise should shift to areas
along and southeast of Interstate 44 tomorrow afternoon and into
the overnight, with a slightly higher risk of tornadoes than
exists today. That said, the main threats tomorrow will continue
to be large hail, damaging winds, and flooding.
Thunderstorm potential will shift southeastward Sunday night, with
much of the activity ending by midday Monday. Low thunderstorm
chances will exist mainly during the daytime for much of next
week, with temperatures within a couple of degrees of normal
values for this time of year.
&&
.PRELIMINARY POINT TEMPS/POPS...
TUL 73 86 64 85 / 80 80 70 10
FSM 75 88 69 87 / 60 70 90 30
MLC 73 86 65 85 / 70 60 80 20
BVO 72 84 62 84 / 80 80 70 10
FYV 71 82 65 83 / 70 80 90 30
BYV 72 85 64 85 / 70 80 90 30
MKO 72 85 65 84 / 80 70 80 20
MIO 71 83 63 83 / 80 80 90 20
F10 71 86 64 84 / 70 60 80 20
HHW 75 87 67 85 / 70 60 90 30
&&
.TSA WATCHES/WARNINGS/ADVISORIES...
OK...Flash Flood Watch from 7 PM CDT this evening through Monday
morning for OKZ049-053>076.
AR...Flash Flood Watch from 7 PM CDT this evening through Monday
morning for ARZ001-002-010-011-019-020-029.
&&
LONG TERM....22Hazardous weather outlook, Jun 22, 1:24 PM CDT, 2 hours 21 minutes before
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Special weather statement, Jun 22, 3:02 PM CDT, 43 minutes before
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Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 3:02 PM CDT | Special Weather Statement | TSA | LeFlore | 28 min |
| Jun 22, 3:42 PM CDT | Special Weather Statement | TSA | Sequoyah | 33 min |
| Jun 22, 3:51 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Muskogee, Sequoyah | 39 min |
| Jun 22, 4:19 PM CDT | Special Weather Statement | TSA | Haskell | 26 min |
| Jun 22, 5:05 PM CDT | Special Weather Statement | TSA | Latimer | 25 min |
| Jun 22, 5:52 PM CDT | Special Weather Statement | TSA | LeFlore | 23 min |
| Jun 22, 5:57 PM CDT | Special Weather Statement | TSA | McIntosh | 33 min |
| Jun 22, 6:33 PM CDT | Special Weather Statement | TSA | Wagoner | 42 min |
| Jun 22, 6:52 PM CDT | Severe Thunderstorm Warning | TSA | Rogers, Tulsa, Wagoner | 38 min |
| Jun 22, 9:07 AM CDT | River Flood Advisory | TSA | Franklin, Johnson, Logan | 11 hr |
| Jun 22, 3:34 PM CDT | Special Weather Statement | TSA | Crawford, Sebastian | 26 min |
| Jun 22, 3:49 PM CDT | Special Weather Statement | TSA | Crawford | 26 min |
| Jun 22, 4:31 PM CDT | Special Weather Statement | TSA | Washington | 29 min |
| Jun 22, 5:11 PM CDT | Special Weather Statement | TSA | Madison | 34 min |
| Jun 22, 5:19 PM CDT | Special Weather Statement | TSA | Madison | 26 min |
| Jun 22, 6:14 PM CDT | Special Weather Statement | TSA | Sebastian | 46 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2019Every severe thunderstorm warning in 2019
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.