Area Forecast Discussion
Issued by NWS Tulsa, OK

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS64 KTSA 251705
AFDTSA

Area Forecast Discussion
National Weather Service Tulsa OK
1205 PM CDT Tue Jul 25 2017

.DISCUSSION...

The discussion for the 18Z TAF forecast can be found below.

&&

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
A ridge of high pressure aloft will maintain VFR conditions thru
the TAF forecast period. Isolated storms in the terrain of SE OK/W
AR should not impact any TAF sites. South winds may gust AOA 15
kts at the NE OK and NW AR sites by mid morning on Wednesday.

Lacy

&&

.PREV DISCUSSION... /Issued 1018 AM CDT Tue Jul 25 2017/

DISCUSSION...

No changes are planned to the going forecast for today. A mid-
level ridge is centered over Oklahoma and will persist thru
Wednesday. Heat advisory in effect for much of eastern OK and west
central AR thru Wednesday looks good for now and will monitor
going into the afternoon if any changes are needed.

Lacy

PREV DISCUSSION... /Issued 550 AM CDT Tue Jul 25 2017/

.UPDATE...

AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.

VFR conditions will prevail through the period. Light fog may
develop for a short time this morning at FYV and XNA. The chance
of thunderstorms impacting the W AR terminals during the afternoon
is nonzero, but below mentionable levels at this time given the
likely isolated nature of any development.

PREV DISCUSSION... /Issued 230 AM CDT Tue Jul 25 2017/

DISCUSSION...
The upper ridge will remain firmly entrenched across the southern
Plains...with a few more days of heat/humidity before we catch a
bit of a break toward the end of the week. Current heat advisory
looks good for today...with afternoon heat index values around
104F to near 110F in a few spots. Afternoon showers/thunderstorms
possible across western AR into far eastern OK...although coverage
will remain isolated. Not much change for Wednesday...with high
temperatures perhaps a degree or two warmer than today. Have
extended the heat advisory into Wednesday as well and may need to
add a few counties across far northeast OK into northwest AR.

A pattern change will ensue going into late this week as the upper
ridge retrogrades and northwesterly flow develops across the
region. This will drive a cold front into our area by Thursday
afternoon...along with increasing chances of showers/storms later
Thursday into Friday.

The coming weekend is shaping up to be relatively "nice" by July
standards...with a much drier airmass overspreading the region.
Expect an extended period of highs in the mid 80s/lower 90s and
overnight lows in the 60s to near 70.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   98  79  99  81 /   0  10  10  10
FSM   99  77  97  78 /  20  10  10  10
MLC   95  78  95  78 /   0   0  10   0
BVO   99  73 101  77 /   0   0  10  20
FYV   92  71  93  75 /  20   0  10  10
BYV   94  74  95  76 /  20  10   0  10
MKO   96  75  95  77 /  10   0  10  10
MIO   95  76  94  77 /   0   0  10  20
F10   96  77  96  78 /   0   0  10   0
HHW   96  75  95  76 /   0   0  10   0

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...Heat Advisory until 8 PM CDT Wednesday for OKZ049-053>057-
     059>062-064>067-070>076.

AR...Heat Advisory until 8 PM CDT Wednesday for ARZ019-020-029.

&&

$$

AVIATION...30



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.