Altus, Oklahoma 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

390
FXUS64 KOUN 190521
AFDOUN

Area Forecast Discussion
National Weather Service Norman OK
1221 AM CDT Thu Jun 19 2025

...New UPDATE...

.KEY MESSAGES...
Updated at 1220 AM CDT Thu Jun 19 2025

- Severe thunderstorms are possible today and into the evening
  hours.

- Above-average temperatures and dry conditions Thursday and into
  early next week. Could see heat indices from 100-105 degrees
  Friday.

&&

.UPDATE...
Issued at 1220 AM CDT Thu Jun 19 2025

Shifted low POPs into east-central and parts of central Oklahoma
through early Thursday morning (near/along the surface boundary).
Also added patchy fog potential with moisture pooling behind the
boundary and light winds.

Thompson

&&

.NEAR TERM...
(Rest of today and tonight)
Issued at 244 PM CDT Wed Jun 18 2025

Parts of our forecast area will be under a risk for severe storms
this afternoon into the evening.  Our cold front/surface moisture
boundary was stalled across northwest Oklahoma while guidance
suggesting it will remain nearly stationary.  Expecting much of the
stratus to erode or break up at least north of I-44 as afternoon
heating destabilizes the air and breaking the mid-level cap for
convection initiation. Although the cap should hold near and well
behind the surface front, expecting initiation south of I-40 with
the higher severe risk near, south, and east of the I-44 corridor
where the strongest moisture & instability will be.  Strong surface-
based instability up to 4000 J/kg of CAPE in the higher risk area
could support supercell thunderstorms capable of producing large
hail and damaging wind gusts into the evening hours.  Although
tornados are possible with any supercells, that risk will be lower
as the deep-layer shear values decrease with the exiting shortwave.
Expecting any convection to ramp down toward the midnight hours when
storm POPs are completely out of our forecast.

&&

.SHORT TERM...
(Thursday through Friday night)
Issued at 244 PM CDT Wed Jun 18 2025

An upper ridge over the western U.S. starts building in on Thursday
starting a drying trend as far as rainfall.  We`ll also see hotter
slightly above normal temperatures under the ridging with widespread
90s highs.  South winds increase on Friday with a tightening
pressure gradient keeping it breezy and a bit gusty during the
afternoon while mixing into increasing low-level jet flow.  Moisture
advection from the southerly flow will maintain muggy/humid
conditions as well producing 100-105 degree heat indices on Friday
afternoon.

&&

.LONG TERM...
(Saturday through Tuesday)
Issued at 125 AM CDT Wed Jun 18 2025

Warm, breezy, and dry conditions continue over the weekend. Low
shower and storm chances return early next week as an upper trough
moves over the western CONUS.

&&

.AVIATION...
(06Z TAFS)
Issued at 1022 PM CDT Wed Jun 18 2025

Most of the evening convection has dissipated, however there is a
low-end chance of a few showers/storms developing from near OKC
metro eastward along I-40 overnight. At this time it appears
chances are too low to include in terminal forecast at OKC/OUN.
Otherwise, mainly clear skies and light winds tonight with a shift
to the south and southwest Thursday morning. Some gusts above
20kts expected across the west.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  93  74  94  75 /   0   0   0   0
Hobart OK         97  74  98  75 /   0   0   0   0
Wichita Falls TX  96  76  97  76 /   0   0   0   0
Gage OK           94  72  96  73 /   0   0   0   0
Ponca City OK     92  72  95  76 /   0   0   0   0
Durant OK         93  75  94  76 /  10   0   0   0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...None.
TX...None.
&&

$$

NEAR TERM...01
SHORT TERM...68
LONG TERM....01
AVIATION...30