Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 548, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Aug 16, 2018, 3:32 PM CDT for Kay County, Noble County, Oklahoma. It was in force for 43 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
- Aug 16, 2018, 3:32 PM CDT (20:32 UTC)
- Expired
- Aug 16, 2018, 4:15 PM CDT
- In force
- 43 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Kay County, OK, Noble County, OK
The radar
The Vance AFB radar (KVNX), 85 km from the middle of the area, began a volume at 20:33 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 155 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
- 788 J/kg
- Mixed-layer CIN
- -151 J/kg
- Mixed-layer LCL
- 1830 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 56 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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 16, 2:39 PM CDT, 53 minutes earlier.
Area forecast discussion, Aug 16, 2:39 PM CDT, 53 minutes before
Area Forecast Discussion
National Weather Service Norman OK
239 PM CDT Thu Aug 16 2018
.DISCUSSION...
Thunderstorms will continue to develop and move across portions of
the area the rest of this afternoon/evening as an MCV continues to
move across the region. The airmass is unstable with 1500-3000+ J/kg
of CAPE. Strong to severe storms will continue to be possible
through mid-evening. Heavy rain will also be possible, which will be
especially problematic for those areas that have already received a
lot of rain over the last few days. A flood watch was issued earlier
today.
Some showers/storms may remain possible overnight into Friday across
portions of the area. Models show a boundary moving south across
parts of the area tonight and Friday. With heating and the boundary,
some isolated to scattered storms could develop Friday afternoon and
evening. Some of these storms could become strong to severe with
damaging wind gusts and heavy rain the primary concerns. Meanwhile,
other storms could develop west of the fa then move across the area
Friday night into Saturday as mid level disturbance moves through
the flow.
The highest chances for rain will be Saturday night in Sunday.
Storms are expected to develop in the High Plains Saturday as an
upper wave moves across the Rockies. These storms will then continue
to develop and move into the fa as the upper wave moves into the
Plains. Rain chances will continue Sunday night into Monday morning
as the upper wave continues to move across the Plains. Strong to
severe storms will be possible this weekend with damaging wind gusts
the primary concerns. Heay rain and flooding will also continue to
be a concern over the weekend.
&&
.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK 73 93 73 89 / 30 20 30 20
Hobart OK 72 95 72 89 / 20 20 40 30
Wichita Falls TX 75 97 74 96 / 30 20 30 30
Gage OK 68 91 68 86 / 20 10 30 30
Ponca City OK 71 92 67 91 / 30 20 10 10
Durant OK 76 96 74 94 / 20 30 30 30
&&
.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch until 9 PM CDT this evening for OKZ007-008-012-013-
018>020-024>030.
TX...None.
&&
10/25Hazardous weather outlook, Aug 16, 11:37 AM CDT, 3 hours 55 minutes before
Hazardous Weather Outlook National Weather Service Norman OK 1137 AM CDT Thu Aug 16 2018 OKZ004>048-050>052-TXZ083>090-171645- 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- 1137 AM CDT Thu Aug 16 2018 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Today and Tonight... .Thunderstorms... There is a Slight Risk for severe thunderstorms into this evening across portions of northern and central Oklahoma. Location... The Slight Risk for severe thunderstorms is generally across the northern half of Oklahoma. A Marginal Risk for severe thunderstorms exists down to the Red River. Timing... Through 8 PM Impacts... Wind gusts 60 to 80 mph. Hail up the size of golf balls. Discussion... Thunderstorms will continue to develop and spread eastward across portions of Oklahoma through this evening. Some thunderstorms may organize into line segments, which may result in damaging wind gusts. .SPOTTER AND EMERGENCY MANAGEMENT STATEMENT... Storm spotter groups and emergency management personnel across the northern half of Oklahoma should prepare for severe weather operations later today. .Heavy Rainfall.. Heavy rainfall from thunderstorms could cause localized flooding, especially at any locations that have recently had significant rainfall. A Flood Watch is in effect for parts of central Oklahoma. .DAYS TWO THROUGH SEVEN...Friday through Wednesday... .Thunderstorms... Thunderstorms are possible each day Friday through Sunday, and could linger into Monday morning. The highest chance will be late Saturday into Sunday. A few strong to severe storms are possible during this period, although widespread or significant severe weather is unlikely. .Heavy Rainfall.. Heavy rainfall from thunderstorms could cause localized flooding, especially at any locations that have recently had significant rainfall. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook. Mahale
In the hours before
Special weather statement, Aug 16, 1:45 PM CDT, 1 hour 47 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 145 PM CDT THU AUG 16 2018 OKZ013-020-161915- Payne OK-Noble OK- 145 PM CDT THU AUG 16 2018 ...SIGNIFICANT WEATHER ADVISORY FOR northwestern Payne and south central Noble Counties Until 215 PM CDT.... AT 142 PM CDT, a strong thunderstorm was located 4 miles southeast of Perry, moving east at 15 MPH. HAZARDS INCLUDE... Hail up to the size of nickels... Wind gusts to 50 MPH... Minor flooding in areas of poor drainage... LAT...LON 3619 9731 3630 9733 3632 9711 3619 9708 TIME...MOT...LOC 1842Z 264DEG 13KT 3624 9725 ..speg.
Special weather statement, Aug 16, 1:47 PM CDT, 1 hour 45 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
147 PM CDT THU AUG 16 2018
OKZ006-161915-
Alfalfa OK-
147 PM CDT THU AUG 16 2018
...SIGNIFICANT WEATHER ADVISORY FOR central Alfalfa County Until 215
PM CDT....
AT 145 PM CDT, a strong thunderstorm was located near Lambert, moving
east at 20 MPH.
HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 50 MPH...
Minor flooding in areas of poor drainage...
LAT...LON 3677 9811 3659 9810 3659 9844 3677 9847
3685 9811
TIME...MOT...LOC 1845Z 261DEG 16KT 3669 9837
..speg.Special weather statement, Aug 16, 2:08 PM CDT, 1 hour 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 208 PM CDT THU AUG 16 2018 OKZ007-161945- Grant OK- 208 PM CDT THU AUG 16 2018 ...SIGNIFICANT WEATHER ADVISORY FOR southwestern Grant County Until 245 PM CDT.... AT 205 PM CDT, a strong thunderstorm was located 6 miles northeast of Nash, moving east at 20 MPH. HAZARDS INCLUDE... Hail up to the size of nickels... Wind gusts to 50 MPH... Minor flooding in areas of poor drainage... LAT...LON 3664 9808 3682 9810 3690 9772 3663 9768 TIME...MOT...LOC 1905Z 264DEG 17KT 3675 9800 ..speg.
Special weather statement, Aug 16, 2:10 PM CDT, 1 hour 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
210 PM CDT THU AUG 16 2018
OKZ012-013-018-019-161945-
Garfield OK-Kingfisher OK-Logan OK-Noble OK-
210 PM CDT THU AUG 16 2018
...SIGNIFICANT WEATHER ADVISORY FOR southeastern Garfield...
northeastern Kingfisher...northwestern Logan and southwestern Noble
Counties Until 245 PM CDT....
AT 208 PM CDT, strong thunderstorms were along a line extending from
6 miles east of Waukomis to 3 miles northwest of Lovell, moving east
at 25 MPH.
HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 50 MPH...
Minor flooding in areas of poor drainage...
LAT...LON 3647 9752 3616 9726 3616 9735 3606 9736
3601 9769 3628 9791
TIME...MOT...LOC 1908Z 249DEG 22KT 3625 9780 3610 9767
..speg.Special weather statement, Aug 16, 2:48 PM CDT, 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
248 PM CDT THU AUG 16 2018
OKZ013-020-162015-
Payne OK-Noble OK-
248 PM CDT THU AUG 16 2018
...SIGNIFICANT WEATHER ADVISORY FOR northwestern Payne and
southeastern Noble Counties Until 315 PM CDT....
AT 245 PM CDT, strong thunderstorms were along a line extending from
near Lake Mcmurtry to 4 miles southwest of Lake Carl Blackwell,
moving east at 15 MPH.
HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 50 MPH...
Heavy rainfall and flooding...
LAT...LON 3625 9692 3624 9687 3604 9701 3604 9735
3633 9720 3633 9692
TIME...MOT...LOC 1945Z 266DEG 13KT 3619 9716 3608 9726
..speg.Local storm report, Aug 16, 3:16 PM CDT, 16 minutes before
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</html>The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 11:06 AM CDT | Flood Watch | OUN | Canadian, Cleveland, Garfield, Grady, Grant, Kay and 8 more | 7 hr |
| Aug 16, 12:25 PM CDT | Areal Flood Advisory | OUN | Blaine, Custer, Dewey | 3 hr |
| Aug 16, 1:32 PM CDT | Special Weather Statement | OUN | Kingfisher | 28 min |
| Aug 16, 1:33 PM CDT | Areal Flood Advisory | OUN | Kingfisher | 3 hr |
| Aug 16, 1:45 PM CDT | Special Weather Statement | OUN | Noble | 30 min |
| Aug 16, 1:47 PM CDT | Special Weather Statement | OUN | Alfalfa | 28 min |
| Aug 16, 2:07 PM CDT | Areal Flood Advisory | OUN | Garfield, Kingfisher, Logan, Noble, Payne | 4 hr |
| Aug 16, 2:08 PM CDT | Special Weather Statement | OUN | Grant | 37 min |
| Aug 16, 2:10 PM CDT | Special Weather Statement | OUN | Garfield | 35 min |
| Aug 16, 2:17 PM CDT | Severe Thunderstorm Warning | OUN | Garfield, Logan, Noble | 43 min |
| Aug 16, 2:30 PM CDT | Severe Thunderstorm Warning | OUN | Grant | 45 min |
| Aug 16, 2:40 PM CDT | Areal Flood Advisory | OUN | Noble, Payne | 3 hr |
| Aug 16, 2:48 PM CDT | Special Weather Statement | OUN | Payne | 27 min |
| Aug 16, 2:49 PM CDT | Flash Flood Warning | OUN | Garfield, Logan, Noble, Payne | 3 hr |
| Aug 16, 2:59 PM CDT | Severe Thunderstorm Warning | OUN | Payne | 46 min |
| Aug 16, 3:09 PM CDT | Severe Thunderstorm Warning | OUN | Grant, Kay | 51 min |
| Aug 16, 3:45 PM CDT | Severe Thunderstorm Warning | OUN | Payne | 30 min |
| Aug 16, 5:52 PM CDT | Special Weather Statement | OUN | Okfuskee | 23 min |
| Aug 16, 6:09 PM CDT | Severe Thunderstorm Warning | OUN | Seminole | 28 min |
| Aug 16, 6:40 PM CDT | Special Weather Statement | OUN | Pottawatomie, Seminole | 35 min |
| Aug 16, 6:50 PM CDT | Areal Flood Advisory | OUN | Pottawatomie, Seminole | 3 hr |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2018Every severe thunderstorm warning in 2018
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.