Alert archive / Oklahoma / Special Weather Statements in 2021
Special Weather Statement, NWS Norman, OK
NWS Norman, OK issued this special weather statement at Jun 28, 2021, 5:56 PM CDT for McClain County, Oklahoma. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 28, 2021, 5:56 PM CDT (22:56 UTC)
- Expired
- Jun 28, 2021, 6:30 PM CDT
- In force
- 34 min
- Issued by
- NWS Norman, OK
County McClain County, OK
The radar
The Norman radar (KTLX), 61 km from the middle of the area, began a volume at 22:56 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 10.9 hours before the alert went out and 372 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
- 79 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 992 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jun 28, 5:22 PM CDT, 34 minutes earlier.
Area forecast discussion, Jun 28, 5:22 PM CDT, 34 minutes before
Area Forecast Discussion
National Weather Service Norman OK
522 PM CDT Mon Jun 28 2021
...New MESOSCALE UPDATE, UPPER AIR...
.MESOSCALE UPDATE FOR Flash Flood Potential...
Issued at 515 PM CDT Mon Jun 28 2021
Radar/satellite data shows converging outflow boundaries over
central Oklahoma, specifically in vicinity of Oklahoma and
Cleveland Counties. High resolution models are starting to show
evidence of at least one (perhaps multiple) round of convection
developing in vicinity of these features and the OKC metro area
through the evening. This is of concern given recent (5-day)
rainfall rates of 4-6+ inches and favorable conditions for
increased flash flood potential. This appears to be an increasing,
but yet moderate probability of occurrence, but potentially high-
impact, so please stay weather aware this evening. A flood watch
remains in effect.
Lindley
&&
.SHORT TERM...
(This evening through Tuesday)
Issued at 212 PM CDT Mon Jun 28 2021
A weak surface boundary is oriented southwest to northeast along
north central OK into southwest OK. This stationary boundary will
be the focal point for showers and storms this afternoon into
evening. This boundary is expected to move towards the northwest
later this evening. Showers and storms are expected to be
isolated, but could produce heavy rain, as PWAT values are still
above the 90th percentile through tomorrow. Soils are still very
saturated from the previous days of rain, and with the
anticipated showers and storms this evening, a Flood Watch has
been issued until 18Z tomorrow for north central OK down into
southwest OK and parts of western north TX. Cloudy conditions
through the evening and into tomorrow will foster high and low
temperatures well-below average. The lows across the area will be
in the mid to upper 60s and the highs will be in the upper 70 to
low 80s.
Bunker
&&
.LONG TERM...
(Tuesday night through next Sunday)
Issued at 212 PM CDT Mon Jun 28 2021
A mid-level ridge will enter the area from the southeastern U.S.
on Wednesday morning. This weak mid-level flow pattern will
persist through the week and into parts of the weekend when the
next mid-level trough moves in from the Midwest. Rain chances are
likely through the week, but should remain isolated/scattered in
nature. With a weakly-forced pattern through the weekend, there is
a lot of uncertainty in regards to widespread precipitation.
Soils will continue to be saturated from the previous
precipitation and the moist airmass that is still in the area.
That being said, flash flooding could be possible with any storms,
especially with high PWATs through the week. The long term will
consist of below- average temperatures, as cloud cover should
linger through the week across most of the area.
Bunker
&&
.AVIATION...
(18Z TAFS)
Issued at 1242 PM CDT Mon Jun 28 2021
SHRA/TSRA expected to become widespread this afternoon and affect
most terminals with MVFR/IFR cigs and vis restrictions. Additional
development of another area of rain possible from northern Texas
this evening and progress northwest through the night. Will keep
most locations IFR late tonight into tomorrow morning given
saturated depiction via forecast soundings and moist e/se flow.
&&
.UPPER AIR...
Issued at 515 PM CDT Mon Jun 28 2021
An Upper Air flight is planned for 23z/28 June. We will attempt to
sample the immediate moisture/instability environment near the
features described in the above mesoscale section prior to any
eventual convective development.
&&
.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK 69 79 69 84 / 70 70 40 50
Hobart OK 67 79 67 85 / 70 70 50 40
Wichita Falls TX 69 83 70 87 / 70 60 30 40
Gage OK 65 80 65 84 / 70 70 40 40
Ponca City OK 69 79 68 84 / 70 70 50 60
Durant OK 70 86 71 88 / 70 40 20 40
&&
.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch through Tuesday afternoon for OKZ006>008-011>030-
033>038.
TX...Flood Watch through Tuesday afternoon for TXZ083>085.
&&
SHORT TERM...20
LONG TERM....68
AVIATION...68Hazardous weather outlook, Jun 28, 10:11 AM CDT, 7 hours 45 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Norman OK 1011 AM CDT Mon Jun 28 2021 OKZ004>048-050>052-TXZ083>090-291000- 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- 1011 AM CDT Mon Jun 28 2021 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Today and Tonight... .Thunderstorms... Scattered thunderstorms will occur today, with most of the activity developing from southwest and south-central Oklahoma up through central and northeast parts of Oklahoma. No severe storms are expected, but heavy rain associated with storms will increase the threat of flooding. .Heavy Rain... Given recent rainfall from southwest into central Oklahoma, it will not take much additional rain to result in flooding problems. Although brief in nature, heavy rain associated with thunderstorms could lead to flash flooding. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday... .Thunderstorms... Thunderstorm chances continue through Sunday but decrease somewhat after Friday. .Heavy Rain... Because of saturated ground across much of the area, a risk for flooding will continue through much of the week. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook.
In the hours before
Local storm report, Jun 28, 4:02 PM CDT, 1 hour 54 minutes before
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</html>Local storm report, Jun 28, 4:44 PM CDT, 1 hour 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
444 PM CDT MON JUN 28 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0422 PM FLOOD 2 W KINGFISHER 35.85N 97.97W
06/28/2021 KINGFISHER OK BROADCAST MEDIA
BROADCAST MEDIA LIVE COVERAGE OF A WATER
RESCUE. THE WATER WAS UP PAST THE TIRES ON A
TRUCK.
&&
RCBSpecial weather statement, Jun 28, 5:05 PM CDT, 51 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
505 PM CDT Mon Jun 28 2021
OKZ025-026-030-282230-
Oklahoma OK-Pottawatomie OK-Lincoln OK-
505 PM CDT Mon Jun 28 2021
...SIGNIFICANT WEATHER ADVISORY FOR southeastern Oklahoma...
northwestern Pottawatomie and southwestern Lincoln Counties Until 530
PM CDT...
AT 503 PM CDT, a strong thunderstorm was located 4 miles northeast of
McLoud, moving northwest at 15 MPH.
HAZARDS INCLUDE...
Hail up to one-half inch diameter...
Wind gusts to 50 MPH...
Locations impacted include...
Shawnee, Choctaw, Harrah, McLoud, Meeker, Dale, Newalla, Bethel Acres
and Aydelotte.
LAT...LON 3529 9702 3536 9714 3538 9714 3538 9718
3542 9726 3567 9704 3545 9685
TIME...MOT...LOC 2203Z 129DEG 13KT 3547 9702
JPSpecial weather statement, Jun 28, 5:11 PM CDT, 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 511 PM CDT Mon Jun 28 2021 OKZ032-282230- Hughes OK- 511 PM CDT Mon Jun 28 2021 ...SIGNIFICANT WEATHER ADVISORY FOR north central Hughes County Until 530 PM CDT... AT 509 PM CDT, a strong thunderstorm was located near Wetumka, moving northwest at 20 MPH. HAZARDS INCLUDE... Hail up to one-half inch diameter... Wind gusts to 50 MPH... LAT...LON 3514 9618 3529 9639 3529 9607 3527 9603 TIME...MOT...LOC 2209Z 133DEG 19KT 3526 9618 JP
Special weather statement, Jun 28, 5:56 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
556 PM CDT Mon Jun 28 2021
OKZ027-028-040-282330-
Grady OK-Garvin OK-McClain OK-
556 PM CDT Mon Jun 28 2021
...SIGNIFICANT WEATHER ADVISORY FOR southeastern Grady...northwestern
Garvin and southwestern McClain Counties Until 630 PM CDT...
AT 551 PM CDT, a strong thunderstorm was located near Lindsay, moving
northwest at 20 MPH.
HAZARDS INCLUDE...
Hail up to one-half inch diameter...
Wind gusts to 50 MPH...
Locations impacted include...
Lindsay, Dibble, Alex, Bradley, Erin Springs and Payne.
LAT...LON 3485 9745 3470 9761 3483 9786 3495 9778
3504 9765
TIME...MOT...LOC 2251Z 131DEG 16KT 3485 9764
JPThe office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 7:02 PM CDT | Special Weather Statement | OUN | Hughes | 43 min |
| Jun 27, 7:22 PM CDT | Areal Flood Advisory | OUN | Pontotoc | 3 hr |
| Jun 27, 7:23 PM CDT | Areal Flood Advisory | OUN | Coal, Hughes | 3 hr |
| Jun 27, 7:41 PM CDT | Special Weather Statement | OUN | Hughes | 49 min |
| Jun 28, 3:58 AM CDT | River Flood Advisory | OUN | Lincoln, Oklahoma, Pottawatomie | 6 hr |
| Jun 28, 3:58 AM CDT | River Flood Advisory | OUN | Cleveland, McClain | 5 hr |
| Jun 28, 9:52 AM CDT | Flood Watch | OUN | Alfalfa, Beckham, Blaine, Caddo, Canadian, Cleveland and 23 more | 35 hr |
| Jun 28, 11:36 AM CDT | Areal Flood Advisory | OUN | Garvin | 4 hr |
| Jun 28, 1:11 PM CDT | Areal Flood Advisory | OUN | Jackson | 4 hr |
| Jun 28, 1:12 PM CDT | Areal Flood Advisory | OUN | Garfield, Kingfisher | 4 hr |
| Jun 28, 1:20 PM CDT | Special Weather Statement | OUN | Garfield | 25 min |
| Jun 28, 2:08 PM CDT | Areal Flood Advisory | OUN | Garfield, Kingfisher, Logan | 3 hr |
| Jun 28, 2:32 PM CDT | Flash Flood Warning | OUN | Caddo, Grady | 3 hr |
| Jun 28, 2:32 PM CDT | River Flood Advisory | OUN | Payne | 6 hr |
| Jun 28, 2:35 PM CDT | Areal Flood Advisory | OUN | Oklahoma | 115 min |
| Jun 28, 2:55 PM CDT | Areal Flood Advisory | OUN | Canadian, Kingfisher | 4 hr |
| Jun 28, 3:01 PM CDT | Areal Flood Advisory | OUN | Garfield, Kay, Noble | 3 hr |
| Jun 28, 3:24 PM CDT | Flash Flood Warning | OUN | Blaine, Caddo, Canadian, Kingfisher | 3 hr |
| Jun 28, 5:05 PM CDT | Special Weather Statement | OUN | Lincoln | 25 min |
| Jun 28, 5:11 PM CDT | Special Weather Statement | OUN | Hughes | 19 min |
| Jun 28, 5:40 PM CDT | Areal Flood Advisory | OUN | Tillman | 3 hr |
| Jun 28, 6:00 PM CDT | Special Weather Statement | OUN | Lincoln | 30 min |
| Jun 28, 6:27 PM CDT | Areal Flood Advisory | OUN | Cleveland, Lincoln, Logan, McClain, Oklahoma | 2 hr |
| Jun 28, 6:32 PM CDT | Flash Flood Warning | OUN | Blaine, Kingfisher | 4 hr |
| Jun 28, 4:33 PM CDT | Special Weather Statement | OUN | Wichita | 27 min |
Nearby
Special Weather Statements in Oklahoma, 2021Every special weather statement 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.