Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Norman, OK

May 27, 2021Foard County, Texas

NWS Norman, OK issued this special weather statement at May 27, 2021, 11:03 PM CDT for Foard County, Texas. It was in force for 27 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: May 27, 2021, 11:03 PM CDT (04:03 UTC)
Expired: May 27, 2021, 11:30 PM CDT
In force: 27 min
Issued by: NWS Norman, OK

County Foard County, TX

The radar

The Altus AFB radar (KFDR), 84 km from the middle of the area, began a volume at 04:04 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 00:00Z, 4.1 hours before the alert went out and 242 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: 474 J/kg
Mixed-layer CIN: -119 J/kg
Mixed-layer LCL: 1941 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

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 May 27, 6:14 PM CDT, 4 hours 49 minutes earlier.

Area forecast discussion, May 27, 6:14 PM CDT, 4 hours 49 minutes before

Area Forecast Discussion
National Weather Service Norman OK
614 PM CDT Thu May 27 2021

...New AVIATION...

.SHORT TERM...
(This evening through Friday)
Issued at 224 PM CDT Thu May 27 2021

Strong to severe thunderstorms will continue into the evening
across most of the area as a cold front moves into minimally-
capped environment (per 18Z special upper air sounding). The
ongoing storms could push out an outflow boundary or two, which
could lead to slight enhancement of a tornado threat if any storms
can form along it, as winds ahead of the boundary could be backed
slightly. Currently, as storms form along the aforementioned cold
front later this afternoon, there may be a brief window for some
discrete storms. The deep-layer shear vector being mostly
parallel to the boundary will foster storm conglomeration shortly
after initiation, and eventually forming into a line that will
move through west-central and central OK. The main threats still
appear to be damaging winds in excess of 80mph and hail up to the
size of baseballs, as SPC mesoanalysis suggests there is at least
MLCAPE values upwards of at least 3000 J/kg across the area. With
numerous storms producing heavy rain rates across areas with
already moist soils, flooding and flash flooding could be possible
across central OK into northern and northeast OK.

Bunker

&&

.LONG TERM...
(Friday night through next Wednesday)
Issued at 224 PM CDT Thu May 27 2021

Over the weekend mid-level heights will gradually increase as an
approaching mid-level ridge moves into the area. Showers and
thunderstorms are possible on Sunday as a shortwave trough
traverses the area and attendant upslope flow along the Rockies.
Another shortwave should move through on Monday morning, bringing
with it additional chances for showers and storms. A longwave
trough will move in by Tuesday morning and an associated cold
front will bring in showers and storms across the area. Northerly
surface flow should persist through much of the long term, with
slight chances for showers and storms. High temperatures should
stay in the mid to upper 70s across most of the area throughout
the period.

Bunker

&&

.AVIATION...
(00Z TAFS)
Issued at 609 PM CDT Thu May 27 2021

Showers and thunderstorms will continue to move south across the
area this evening. Some MVFR ceilings and visibilities are
possible with these storms as they move through. Otherwise,
northerly winds will persist through the period behind the cold
front. Ceilings should generally lift after the storms pass.

&&

.UPPER AIR...
Issued at 224 PM CDT Thu May 27 2021

An Upper Air flight is planned later at 00Z..

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  59  72  54  72 /  90   0  10  10
Hobart OK         60  75  56  74 /  70  10  10  10
Wichita Falls TX  65  77  60  76 /  80  30  30  20
Gage OK           53  72  53  73 /  10  10  10  10
Ponca City OK     53  72  50  72 /  50   0   0   0
Durant OK         66  80  59  75 /  90  30  20  10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch until 1 AM CDT Friday for OKZ008-012-013-018>020-
     024>031.

TX...None.
&&

SHORT TERM...13
LONG TERM....13
AVIATION...13

Hazardous weather outlook, May 27, 9:22 PM CDT, 1 hour 41 minutes before

Hazardous Weather Outlook
National Weather Service Norman OK
922 PM CDT Thu May 27 2021

OKZ004>048-050>052-TXZ083>090-290230-
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-
922 PM CDT Thu May 27 2021

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

.DAY ONE...Tonight...

.Thunderstorms...
Showers and thunderstorms will continue to affect portions of
southern Oklahoma and western north Texas. Some of the storms
could become strong to severe with up to golf ball size hail and
wind gusts of 60 to 70 mph possible. Locally heavy rain could also
be a concern in a few locations.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday...

.Thunderstorms...
Friday and Saturday will see thunderstorm chances across mainly
southern Oklahoma and north Texas. More widespread chances for
showers and storms will return Sunday through Wednesday of next
week.

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, May 27, 10:12 PM CDT, 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1012 PM CDT Thu May 27 2021

TXZ086-280345-
Wichita TX-
1012 PM CDT Thu May 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR southeastern Wichita County Until
1045 PM CDT...

AT 1010 PM CDT, the leading edge of strong and gusty thunderstorm
winds extended along a line extending from near Iowa Park to 6 miles
northwest of Holliday to 3 miles northwest of Mankins, moving east at
35 MPH.

HAZARDS INCLUDE...
Wind gusts over 50 MPH...

Locations impacted include...
Wichita Falls, Iowa Park, Sheppard AFB and Pleasant Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3389 9881 3400 9873 3396 9842 3384 9843
      3384 9888
TIME...MOT...LOC 0310Z 277DEG 31KT 3399 9869 3390 9873 3382 9884

Mahale

Local storm report, May 27, 10:18 PM CDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1018 PM CDT THU MAY 27 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1013 PM     HAIL             3 W BURKBURNETT         34.08N 98.62W
05/27/2021  E1.25 INCH       WICHITA            TX   TRAINED SPOTTER

&&

EM

Local storm report, May 27, 10:23 PM CDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1023 PM CDT THU MAY 27 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1019 PM     HAIL             BURKBURNETT             34.08N 98.56W
05/27/2021  E1.00 INCH       WICHITA            TX   TRAINED SPOTTER

&&

EM

Local storm report, May 27, 10:31 PM CDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1031 PM CDT THU MAY 27 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1025 PM     TSTM WND GST     SHEPPARD AFB            33.98N 98.50W
05/27/2021  M62 MPH          WICHITA            TX   ASOS

&&

EM

Local storm report, May 27, 10:41 PM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1041 PM CDT THU MAY 27 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1036 PM     HAIL             2 SW SHEPPARD AFB       33.96N 98.52W
05/27/2021  E1.50 INCH       WICHITA            TX   OTHER FEDERAL

            EXIT 3C ON I-44

&&

EM

Special weather statement, May 27, 11:03 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1103 PM CDT Thu May 27 2021

TXZ084-087-280430-
Foard TX-Knox TX-
1103 PM CDT Thu May 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR southeastern Foard and
northeastern Knox Counties Until 1130 PM CDT...

AT 1101 PM CDT, a strong thunderstorm was located 8 miles southeast
of Crowell, moving southeast at 10 MPH.

HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 50 MPH...

This storm will remain over mainly rural areas of southeastern Foard
and northeastern Knox Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3384 9978 3393 9970 3392 9948 3374 9953
TIME...MOT...LOC 0401Z 298DEG 9KT 3387 9965

Mahale

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 7:06 PM CDT	Areal Flood Advisory	OUN	Lincoln	114 min
May 27, 7:11 PM CDT	Areal Flood Advisory	OUN	Lincoln, Pottawatomie, Seminole	2 hr
May 27, 7:35 PM CDT	Special Weather Statement	OUN	Grady	25 min
May 27, 7:51 PM CDT	Severe Thunderstorm Warning	OUN	Jackson	39 min
May 27, 8:09 PM CDT	Special Weather Statement	OUN	Stephens	36 min
May 27, 8:26 PM CDT	Areal Flood Advisory	OUN	Canadian, Cleveland, Kingfisher, Lincoln, Logan, Oklahoma	3 hr
May 27, 8:35 PM CDT	River Flood Watch	OUN	Bryan	14 hr
May 27, 8:41 PM CDT	River Flood Advisory	OUN	Payne	24 hr
May 27, 8:42 PM CDT	River Flood Advisory	OUN	Kingfisher, Logan	24 hr
May 27, 8:57 PM CDT	Special Weather Statement	OUN	Stephens	33 min
May 27, 9:25 PM CDT	Special Weather Statement	OUN	Stephens	35 min
May 27, 9:46 PM CDT	Special Weather Statement	OUN	Tillman	29 min
May 27, 10:04 PM CDT	Severe Thunderstorm Warning	OUN	Cotton, Tillman	41 min
May 27, 10:34 PM CDT	Severe Thunderstorm Warning	OUN	Cotton, Jefferson	41 min
May 27, 11:11 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson, Love	49 min
May 28, 4:42 AM CDT	River Flood Advisory	OUN	Pottawatomie, Seminole	11 hr
May 28, 4:42 AM CDT	River Flood Advisory	OUN	Lincoln, Oklahoma, Pottawatomie	11 hr
May 27, 8:26 PM CDT	Severe Thunderstorm Warning	OUN	Hardeman, Wilbarger	49 min
May 27, 8:34 PM CDT	Special Weather Statement	OUN	Foard	26 min
May 27, 9:06 PM CDT	Severe Thunderstorm Warning	OUN	Wilbarger	39 min
May 27, 9:15 PM CDT	Special Weather Statement	OUN	Wilbarger	30 min
May 27, 10:12 PM CDT	Special Weather Statement	OUN	Wichita	33 min
May 27, 10:36 PM CDT	Severe Thunderstorm Warning	OUN	Foard	39 min
May 27, 11:00 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Knox	45 min
May 27, 11:27 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Foard, Knox	48 min
May 28, 12:09 AM CDT	Severe Thunderstorm Warning	OUN	Archer, Baylor	51 min
May 28, 12:13 AM CDT	Special Weather Statement	OUN	Knox	32 min
May 28, 12:46 AM CDT	Severe Thunderstorm Warning	OUN	Archer, Clay	44 min
May 28, 1:29 AM CDT	Special Weather Statement	OUN	Clay	31 min
May 28, 2:13 AM CDT	Special Weather Statement	OUN	Foard	32 min
May 28, 4:55 AM CDT	Special Weather Statement	OUN	Foard, Hardeman	35 min
May 28, 5:24 AM CDT	Special Weather Statement	OUN	Foard, Hardeman	36 min
May 28, 8:14 AM CDT	Special Weather Statement	OUN	Hardeman	31 min
May 28, 8:14 AM CDT	Special Weather Statement	OUN	Wilbarger	31 min

Nearby

Special Weather Statements in Texas, 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.