270
FXUS64 KOUN 061447
AFDOUN

Area Forecast Discussion
National Weather Service Norman OK
947 AM CDT Sun Apr 6 2025

...New UPDATE...

.KEY MESSAGES...
Updated at 937 AM CDT Sun Apr 6 2025

- A corridor of snowfall, centered near Interstate 44, will
  continue through the mid-morning Sunday. Accumulations up to one
  inch are possible on grassy surfaces.

- Wind chills in the 20s tonight and Sunday night, with a Freeze
  Watch continuing for early Monday morning.

- Trending warm and dry into next week.

&&

.UPDATE...
Issued at 946 AM CDT Sun Apr 6 2025

The latest water vapor loop shows the center of the mid-level
trough passing slowly over far southwest Oklahoma and encroaching
on the Red River and radar shows a narrow zone of rain mixed with
snow approaching the I-44 corridor. This band is expected to
continue to progress slowly south/east with precipitation
transitioning to mainly rain over the next few hours.

We increased precipitation chances through around mid-day for
parts of central Oklahoma. Light snow accumulations are possible
on grassy surfaces, but little to no impact expected on the
roadways. Brief visibility reductions are possible over the next
few hours within the heavier portions of the snow band.

Thompson

&&

.NEAR TERM...
(Today and tonight)
Issued at 230 AM CDT Sun Apr 6 2025

Scattered areas of precipitation, including mostly snow
along/near the Interstate 44 corridor, will continue over the
coming hours this morning.

Early morning satellite imagery captures a once consolidated trough
continuing to become latitudinally elongated across the southern
tier of the CONUS. The belt of strongest flow, and associated
upper low, are currently placed across portions of Oklahoma/Texas.

Areas of light-to-moderate precipitation have focused across
portions of western/central Oklahoma over the past hours. This
includes banded precipitation structures near the Interstate 44
corridor, likely associated with a weak 850/950 mb frontogenesis
axis. Given locally heavier rates, yielding sufficient wet-bulb
cooling, winter precipitation modes (including periods of mainly
snow) have been observed with these features over the past few
hours. Similar structures/outcomes are expected to slowly progress
north/east (into central Oklahoma) through daybreak. Precipitation
coverage is forecast to slowly diminish towards midday.

Light snow accumulation (up to ~1-inch) will be possible on
grassy surfaces beneath any persistent mesoscale precipitation
band(s). While slushy/occasionally slick roadways may also briefly
develop, >32-degree temperatures (even during snowfall) preclude
widespread concern for travel impact. With temperatures likely to
warm once precipitation/snow ends, any accumulated snowfall will
quickly melt through the mid-morning hours.

Otherwise, sensible conditions will turn dry (and remain cool) through
the day today, with gradually diminishing sky cover. Afternoon
temperatures will be warmest (upper-50s) where skies clear the
quickest this afternoon (western zones).

Overnight tonight, there is concern for at least patchy freezing/sub-
freezing low temperatures across the area. The forecast has
trended "warmer" compared to prior updates such that the profile
of <32-degree low temperatures continues to gradually shrink.
Despite this trend, will maintain the ongoing Freeze Watch for all
zones on Monday morning. Interests with sensitive vegetation
should continue to closely monitor the forecast and plan to take
protective actions, especially if located in sheltered/low-lying
locales.

Ungar

&&

.SHORT TERM...
(Monday through Tuesday night)
Issued at 230 AM CDT Sun Apr 6 2025

A prolonged stretch of low-impact/warm weather begins on Monday
and continues through much of the week. An elongated trough
axis/jet streak continues to move into the eastern US, while an
upper ridge begins to establish across the Intermountain West.
Synoptic subsidence will promote dry and warming conditions, with
near-average temperatures on Monday (60s) giving way to 70s-80s
by Tuesday. While south winds will become breezy by Tuesday
afternoon, the temperature/sky combination will offer up
excellent weather for outdoor activities. Enjoy!

Ungar

&&

.LONG TERM...
(Wednesday through Saturday)
Issued at 230 AM CDT Sun Apr 6 2025

Ensemble guidance suggests that an amplifying upper ridge will
remain the key piece of the upstream synoptic regime into the late
week. This will continue to promote mostly dry and warm conditions
(70s to low-80s on Wednesday). A trailing surface front (with a
highly amplified trough across the Northeast) looks to sweep
across the area on Wednesday. While nil precipitation chance is
currently advertised, slightly cooler conditions are possible in
the post-front by the late week.

Ungar

&&

.AVIATION...
(12Z TAFS)
Issued at 604 AM CDT Sun Apr 6 2025

Mixed precipitation is mainly transitioning to all rain and will
diminish by mid morning. Ceilings will slowly improve through the
morning, with VFR conditions expected by early to mid afternoon
across the area. North winds will become light and variable
overnight.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  52  34  65  38 /  50   0   0   0
Hobart OK         55  31  67  37 /  30   0   0   0
Wichita Falls TX  56  33  66  39 /  20   0   0   0
Gage OK           56  30  68  37 /   0   0   0   0
Ponca City OK     54  32  66  35 /  20   0   0   0
Durant OK         51  36  64  40 /  10   0   0   0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Freeze Watch from late tonight through Monday morning for
     OKZ004>048-050>052.

TX...Freeze Watch from late tonight through Monday morning for
     TXZ083>090.

&&

$$

NEAR TERM...01
SHORT TERM...09
LONG TERM....09
AVIATION...08