Alert archive / Oklahoma / Special Weather Statements in 2021

Special Weather Statement, NWS Norman, OK

June 25, 20215 counties in Oklahoma

NWS Norman, OK issued this special weather statement at Jun 25, 2021, 10:41 PM CDT for 5 counties in Oklahoma. It was in force for 49 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 25, 2021, 10:41 PM CDT (03:41 UTC)
Expired: Jun 25, 2021, 11:30 PM CDT
In force: 49 min
Issued by: NWS Norman, OK

Counties Blaine County, OK, Garfield County, OK, Kingfisher County, OK, Logan County, OK, Noble County, OK

The radar

The Vance AFB radar (KVNX), 82 km from the middle of the area, began a volume at 03:40 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

Dodge City, (KDDC), launched 00:00Z, 3.7 hours before the alert went out and 274 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1147 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 2013 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

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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 25, 6:18 PM CDT, 4 hours 23 minutes earlier.

Area forecast discussion, Jun 25, 6:18 PM CDT, 4 hours 23 minutes before

Area Forecast Discussion
National Weather Service Norman OK
618 PM CDT Fri Jun 25 2021

...New AVIATION...

.SHORT TERM...
(This evening through Saturday)
Issued at 201 PM CDT Fri Jun 25 2021

Storms are expected to develop from KS southwest into the TX
panhandle, clipping far NW parts of the fa, late this
afternoon/early evening. Showers/storms will then continue to
develop, move into, and across parts of the area tonight into
Saturday morning, with the highest chances generally north of I-40.
The development will occur near a front and dryline/sfc trough. The
cool front or effective front is forecast to slowly move south into
and across parts of the area tonight into tomorrow. Another round of
showers/storms is then expected to begin Saturday afternoon. The
position(s) of the previously mentioned boundaries will have an
impact on where the greatest storm development will begin tomorrow
afternoon. Enough instability and shear is expected to be in place
that some of the storms later this afternoon and evening could
become strong to severe with hail and damaging winds possible. Some
strong to severe storms will also be possible Saturday afternoon
with hail and strong winds the main concerns, although this could be
impacted by what occurs tonight into Saturday morning. The severe
potential being said, heavy rain/flooding will become an increasing
concern as the weekend progresses and could be an even bigger
concern than the severe potential for at least parts of the fa. A
Flood Watch is in effect starting early this evening and continues
into Saturday.

With the rain and clouds expected across the area, the trend of
below average temperatures for late June will begin Saturday with
highs in the 80s to low 90s.

&&

.LONG TERM...
(Saturday night through next Thursday)
Issued at 316 PM CDT Fri Jun 25 2021

All medium range models project the blocking high across the western
one third of the U.S. persisting through next week, which should
maintain the negatively tilted trough across the central one third
of the U.S.  This persisting upper air pattern will maintain our wet
trend with cooler than seasonably average every day through Friday.
As the surface based and elevated instability and deep layer shear
weakens Saturday evening across the Southern High Plains, expecting
the severe hazards to gradually decrease with any ongoing convection
moving across our area.  However, could still see some strong storms
during the overnight hours, but heavy rainfall could maintain a
flooding to flash flooding hazard as well as river flooding
potential.  Within an area of 2-plus inches of Preciptable Water
Saturday night and three day storm total accumulations of 4-5
inches, the highest potential right now for flooding would be across
central and southwestern Oklahoma.  Of course this area and storm
total amounts may change in the upcoming short term.  With the upper
trough axis to our west, mid-level vorticity forcing within our
southwesterly flow aloft will maintain chances for storms through
the day Sunday, with the highest POPs generally south and east of
the I-44 corridor. Weak elevated instability should keep any of the
high based storms below severe. However, the stalled out surface
boundary will remain stretched somewhere across our area with
moderate surface based instability that could produce some lower
based stronger convective storms near the boundary, although weak
capping and/or a lack of strong afternoon heating could inhibit
this. Another vort max coming up from our southwest will bring
another round of showers and weak thunderstorms.

As previously mentioned, our wet trend with periods of rain and
storms will continue through next week as our upper troughing and
ample gulf moisture transport persists, with the highest chances
across the southern half of Oklahoma and western north Texas.
However, limited instability and lower QPFs should keep any new
severe and flooding risks low. However, any ongoing flooding
especially with rivers may persist.

&&

.AVIATION...
(00Z TAFS)
Issued at 615 PM CDT Fri Jun 25 2021

VFR conditions expected outside of storms, however storms will
become more numerous overnight and then again late Saturday with
some MVFR conditions. Moderate south to southeast winds will
remain through tonight into tomorrow before a surface boundary
works south toward I-44 late in the forecast period.

&&

.UPPER AIR...
Issued at 220 AM CDT Fri Jun 25 2021

An Upper Air flight is not planned for today.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  74  88  68  79 /  60  70  90  70
Hobart OK         72  88  67  80 /  60  80  90  60
Wichita Falls TX  76  93  71  83 /  10  40  70  60
Gage OK           67  84  64  81 /  90  50  50  20
Ponca City OK     70  82  67  80 /  90  90  80  50
Durant OK         75  92  72  87 /  10  10  30  60

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch through Sunday afternoon for OKZ004>030-033>038-044.

TX...Flood Watch through Sunday afternoon for TXZ083>090.

&&

SHORT TERM...25
LONG TERM....68
AVIATION...30

Hazardous weather outlook, Jun 25, 7:48 PM CDT, 2 hours 53 minutes before

Hazardous Weather Outlook
National Weather Service Norman OK
748 PM CDT Fri Jun 25 2021

OKZ004>048-050>052-TXZ083>090-270100-
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-
748 PM CDT Fri Jun 25 2021

This hazardous weather outlook is for portions of northern...
western...central...and southern Oklahoma...and western north
Texas.

.DAY ONE...Tonight...

.Thunderstorms...
Thunderstorms will continue to be possible across mainly the
northwest half of Oklahoma tonight. A few severe storms will be
possible with this activity with damaging wind gusts and large
hail being the main threats. Heavy rainfall will also be possible.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday...

.Thunderstorms...
Some thunderstorms will be ongoing Saturday morning across parts
of Oklahoma and western north Texas. Severe weather is not
anticipated with this activity and these storms are expected to
gradually dissipate through the morning hours.

Additional thunderstorms will be likely by afternoon along and
near a surface boundary that will be near the I-44 corridor. A few
severe storms will be possible with this activity with damaging
wind gusts and large hail again being the main threats.

Thunderstorm chances will continue through Thursday, although
widespread severe storms are not anticipated, a few strong to
severe will be possible.

.Heavy Rainfall...
Three to five inches of rainfall is possible in some areas this
weekend into early next week. A flood watch is in effect through Sunday
evening.

Get graphics and more details at weather.gov/norman...and follow
our weather forecast office on Twitter and Facebook.

In the hours before

Special weather statement, Jun 25, 6:51 PM CDT, 3 hours 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
651 PM CDT Fri Jun 25 2021

OKZ009-014-260030-
Roger Mills OK-Ellis OK-
651 PM CDT Fri Jun 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR northwestern Roger Mills and
western Ellis Counties Until 730 PM CDT...

AT 650 PM CDT, strong thunderstorms were along a line extending from
8 miles southeast of Follett to near Higgins to 7 miles southeast of
Canadian, moving east at 20 MPH.

HAZARDS INCLUDE...
Wind gusts to 50 MPH...

Locations impacted include...
Shattuck, Arnett, Gage and Durham.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3641 10000 3647 9977 3614 9970 3589 9973
      3582 10000
TIME...MOT...LOC 2350Z 250DEG 16KT 3633 10006 3608 10002 3582 10031

Mahale

Special weather statement, Jun 25, 7:18 PM CDT, 3 hours 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
718 PM CDT Fri Jun 25 2021

OKZ009-010-260100-
Woodward OK-Ellis OK-
718 PM CDT Fri Jun 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR southwestern Woodward and central
Ellis Counties Until 800 PM CDT...

AT 716 PM CDT, strong thunderstorms were along a line extending from
7 miles northwest of Gage to near Arnett to 10 miles southeast of
Higgins, moving east at 30 MPH.

HAZARDS INCLUDE...
Wind gusts to 50 MPH...

Locations impacted include...
Woodward, Shattuck, Arnett, Gage, Fargo, Sharon, Harmon and Tangier.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3623 10000 3624 9993 3643 9993 3660 9934
      3660 9930 3661 9929 3662 9925 3622 9924
      3616 9937 3616 9938 3615 9938 3610 9950
      3597 10000
TIME...MOT...LOC 0016Z 261DEG 25KT 3642 9981 3616 9980 3601 9991

Mahale

Special weather statement, Jun 25, 8:08 PM CDT, 2 hours 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
808 PM CDT Fri Jun 25 2021

OKZ005-009>011-014-015-260200-
Major OK-Woodward OK-Roger Mills OK-Dewey OK-Woods OK-Ellis OK-
808 PM CDT Fri Jun 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR western Major...southern
Woodward...northeastern Roger Mills...Dewey...southeastern Woods and
southeastern Ellis Counties Until 900 PM CDT...

AT 807 PM CDT, strong thunderstorms were along a line extending from
4 miles southwest of Mooreland to 5 miles southeast of Vici to near
Camargo to near Angora, moving east at 45 MPH.

HAZARDS INCLUDE...
Wind gusts to 50 MPH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3606 9960 3643 9952 3657 9872 3612 9864
      3601 9870 3582 9891 3582 9977
TIME...MOT...LOC 0107Z 266DEG 37KT 3640 9927 3610 9922 3600 9927 3585
9945

Mahale

Special weather statement, Jun 25, 8:52 PM CDT, 1 hour 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
852 PM CDT Fri Jun 25 2021

OKZ005-006-010-011-014-015-017-260230-
Major OK-Woodward OK-Alfalfa OK-Roger Mills OK-Dewey OK-Woods OK-
Blaine OK-
852 PM CDT Fri Jun 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR Major...southeastern Woodward...
southwestern Alfalfa...northeastern Roger Mills...Dewey...
southeastern Woods and northern Blaine Counties Until 930 PM CDT...

AT 849 PM CDT, strong thunderstorms were along a line extending from
3 miles south of Waynoka to 3 miles southeast of Orion to near
Putnam, moving east at 40 MPH.

HAZARDS INCLUDE...
Wind gusts to 50 MPH...

Locations impacted include...
Woodward, Watonga, Fairview, Taloga, Helena, Okeene, Mooreland,
Waynoka, Seiling, Vici, Canton, Ringwood, Leedey, Carmen, Cleo
Springs, Longdale, Ames, Meno, Aline and Camargo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3674 9832 3632 9813 3581 9837 3581 9938
      3580 9939 3645 9938
TIME...MOT...LOC 0149Z 260DEG 36KT 3654 9888 3619 9873 3587 9899

Mahale

Special weather statement, Jun 25, 10:06 PM CDT, 35 minutes before

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Special weather statement, Jun 25, 10:41 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1041 PM CDT Fri Jun 25 2021

OKZ011>013-017>020-260430-
Major OK-Garfield OK-Payne OK-Kingfisher OK-Logan OK-Blaine OK-
Noble OK-
1041 PM CDT Fri Jun 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR eastern Major...Garfield...
western Payne...Kingfisher...Logan...Blaine and Noble Counties Until
1130 PM CDT...

AT 1037 PM CDT, strong thunderstorms were along a line extending from
3 miles northeast of Fairmont to 3 miles west of Lovell to 8 miles
north of Calumet, moving east at 50 MPH.

HAZARDS INCLUDE...
Wind gusts to 50 MPH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3633 9703 3633 9695 3617 9694 3573 9735
      3572 9863 3600 9863 3646 9836 3649 9703
TIME...MOT...LOC 0337Z 261DEG 44KT 3639 9766 3604 9770 3573 9815

Mahale

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 25, 7:18 PM CDT	Special Weather Statement	OUN	Ellis, Woodward	42 min
Jun 25, 7:59 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	46 min
Jun 25, 8:08 PM CDT	Special Weather Statement	OUN	Dewey, Woodward	52 min
Jun 25, 8:28 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Dewey, Ellis, Roger Mills, Washita	47 min
Jun 25, 8:52 PM CDT	Special Weather Statement	OUN	Alfalfa, Blaine, Dewey, Major, Woodward	38 min
Jun 25, 9:07 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey, Major, Woodward	38 min
Jun 25, 9:43 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey, Kingfisher, Major	33 min
Jun 25, 10:06 PM CDT	Special Weather Statement	OUN	Grant	39 min
Jun 25, 10:42 PM CDT	Special Weather Statement	OUN	Woodward	48 min
Jun 25, 11:21 PM CDT	Special Weather Statement	OUN	Woodward	24 min
Jun 25, 11:25 PM CDT	Special Weather Statement	OUN	Ellis, Harper, Woodward	50 min
Jun 25, 11:44 PM CDT	Areal Flood Advisory	OUN	Dewey, Ellis, Woodward	6 hr
Jun 25, 11:46 PM CDT	Special Weather Statement	OUN	Roger Mills	44 min
Jun 26, 12:13 AM CDT	Flash Flood Warning	OUN	Dewey, Ellis, Woodward	4 hr
Jun 26, 12:26 AM CDT	Special Weather Statement	OUN	Beckham, Custer, Dewey	49 min
Jun 26, 12:47 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer, Harmon, Roger Mills	43 min
Jun 26, 1:06 AM CDT	Areal Flood Advisory	OUN	Blaine, Dewey, Major, Woodward	4 hr
Jun 26, 1:12 AM CDT	Special Weather Statement	OUN	Blaine, Custer, Dewey, Washita	48 min
Jun 26, 1:19 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Greer, Kiowa, Washita	41 min
Jun 26, 1:49 AM CDT	Areal Flood Advisory	OUN	Dewey, Ellis	3 hr
Jun 26, 1:55 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Custer, Kiowa, Washita	50 min
Jun 26, 2:40 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Grady, Kingfisher	50 min
Jun 26, 3:14 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan, Oklahoma	46 min
Jun 26, 3:39 AM CDT	Areal Flood Advisory	OUN	Blaine, Garfield, Kingfisher, Logan, Major, Noble and 1 more	3 hr
Jun 26, 3:52 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Lincoln, Logan, Oklahoma, Pottawatomie	38 min
Jun 26, 4:29 AM CDT	Special Weather Statement	OUN	Cleveland, Lincoln, Pottawatomie	46 min
Jun 26, 4:44 AM CDT	Areal Flood Advisory	OUN	Canadian, Cleveland, McClain, Oklahoma	6 hr
Jun 26, 7:32 AM CDT	Flash Flood Warning	OUN	Caddo, Comanche, Grady	4 hr
Jun 26, 2:04 PM CDT	River Flood Warning	OUN	Cleveland, McClain	46 hr
Jun 26, 2:05 PM CDT	River Flood Warning	OUN	Lincoln, Oklahoma, Pottawatomie	39 hr
Jun 26, 2:05 PM CDT	River Flood Advisory	OUN	Cleveland, McClain, Pottawatomie	31 hr
Jun 26, 2:06 PM CDT	River Flood Warning	OUN	Pottawatomie, Seminole	19 hr
Jun 26, 2:13 PM CDT	River Flood Watch	OUN	Garvin	13 hr
Jun 26, 3:36 PM CDT	Special Weather Statement	OUN	Comanche	24 min
Jun 26, 3:53 PM CDT	Special Weather Statement	OUN	Jackson	37 min
Jun 26, 4:00 PM CDT	Special Weather Statement	OUN	Comanche	30 min
Jun 26, 4:17 PM CDT	Special Weather Statement	OUN	Jackson	28 min
Jun 26, 4:27 PM CDT	Special Weather Statement	OUN	Comanche	48 min
Jun 26, 4:32 PM CDT	Areal Flood Advisory	OUN	Comanche	3 hr
Jun 26, 4:48 PM CDT	Special Weather Statement	OUN	Tillman	42 min
Jun 26, 4:48 PM CDT	Special Weather Statement	OUN	Jackson	42 min
Jun 26, 4:55 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Kiowa, Tillman	50 min
Jun 26, 4:55 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Grady	39 min
Jun 26, 5:13 PM CDT	Special Weather Statement	OUN	Kiowa	32 min
Jun 26, 5:20 PM CDT	Special Weather Statement	OUN	Ellis	25 min
Jun 26, 5:37 PM CDT	Special Weather Statement	OUN	Tillman	38 min
Jun 26, 5:48 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Kiowa, Tillman	42 min
Jun 26, 5:55 PM CDT	Special Weather Statement	OUN	Custer	35 min
Jun 26, 6:13 PM CDT	Areal Flood Advisory	OUN	Caddo	3 hr
Jun 26, 6:19 PM CDT	Areal Flood Advisory	OUN	Blaine, Caddo, Custer	3 hr
Jun 26, 6:20 PM CDT	Severe Thunderstorm Warning	OUN	Blaine	40 min
Jun 26, 6:31 PM CDT	Special Weather Statement	OUN	Tillman	29 min
Jun 26, 6:43 PM CDT	Areal Flood Advisory	OUN	Comanche, Cotton, Tillman	3 hr
Jun 26, 6:45 PM CDT	Severe Thunderstorm Warning	OUN	Blaine	45 min
Jun 26, 3:56 PM CDT	Special Weather Statement	OUN	Hardeman	34 min

Nearby

Special Weather Statements in Oklahoma, 2021 Every 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.