Area Forecast Discussion
Issued by NWS Tulsa, OK
Issued by NWS Tulsa, OK
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
228 FXUS64 KTSA 060502 AFDTSA Area Forecast Discussion National Weather Service Tulsa OK 1202 AM CDT Thu Jun 6 2024 ...New AVIATION... .UPDATE... Issued at 934 PM CDT Wed Jun 5 2024 Current forecast on track this evening with no significant changes anticipated. Mostly clear skies are expected overnight with lows generally in the 60s. && .SHORT TERM... (The rest of this afternoon ) Issued at 216 PM CDT Wed Jun 5 2024 A very seasonably pleasant day has transpired today as a weak cold front has exited the forecast area and clouds continue to clear from north-to-south. Skies will remain clear/mostly clear tonight as upper-level ridging builds over the Desert Southwest and northwest flow/subsidence dominates over the region. Near seasonal low temperatures are anticipated tonight, ranging from the upper 50s/near 60F in far Northwest AR to low-mid 60s elsewhere. Mejia && .LONG TERM... (Tonight through Wednesday) Issued at 216 PM CDT Wed Jun 5 2024 Another weak cold front will move southward through the forecast area on Thursday, pushing south of the Red River late Thursday night. A few deterministic/ensembles/CAMs are hinting at moisture pooling along the frontal boundary as peak heating occurs Thursday afternoon. This may cause a few spotty showers/thunderstorms to form, mainly along/south of I-40. Due to low confidence of sufficient availability of moisture and lift, decided to cap PoPs at 10%. Latest models also indicate a weak mid-level shortwave trough embedded in the northwest flow aloft moving across OK late Thursday night/early Friday morning. A very dry and stable boundary layer will be in place behind the cold front by that time, but limited elevated CAPE will remain present. If the shortwave verifies and is able to tap into mid-level moisture, elevated thunderstorms may develop in portions of Eastern OK early-mid Friday morning. But again, with limited moisture to work with, confidence of this occurring is low at this time, so kept the mention of precipitation out of the forecast for this particular time frame for now. Southerly winds return Friday, increasing low-level moisture and instability across the region. Forecast models/ensembles have been persistent in developing another shortwave trough by Friday evening that will push across the northern tier of the forecast area late Friday night/early Saturday morning. Best lift, moisture, and instability combo (and thus precipitation chances) will occur north of the I-40 corridor. There will be enough instability for strong to marginally severe thunderstorms as the shortwave moves across and exits the region by early Saturday morning. If severe storms do form, large hail and damaging wind gusts will be the main hazards. Better and more widespread chances of showers and thunderstorms will occur starting late Saturday evening and continuing through much of the daytime on Sunday as another shortwave trough and another, stronger cold front approaches from the north. There is still some uncertainty with how this event will unfold, with a few discrepancies and inconsistencies still in forecast models. However, trends continue to indicate widespread showers and thunderstorms will spread from north-to-south from Saturday night into much of the daytime on Sunday. Although probabilities are still relatively low at this time, a few thunderstorms may become strong to severe, especially Saturday evening. Will continue to monitor severe trends. There is better confidence in heavy to very heavy rainfall, leading to flooding and/or flash flooding both on Friday night and especially on Saturday night as PWATs increase to near or above 2 inches along the approaching cold front. Heaviest precipitation is expected to fall across Northeast OK and Northwest AR. The cold front and precipitation should be ending by Monday morning, with much cooler (below average) and more pleasant conditions anticipated Monday and Tuesday. Near seasonal temperatures will return by Wednesday. Lastly, wanted to mention that unseasonably warm temperatures are expected Thursday-Saturday, with widespread daytime temperatures maxing out in the upper 80s and lower 90s in most locations. Saturday is forecast to be the warmest day in the period, with a few locations perhaps reaching the mid-90s along and west of Highway 75 in OK and in AR River Valley. Mejia && .AVIATION... (06Z TAFS) Issued at 1202 AM CDT Thu Jun 6 2024 VFR conditions will prevail thru the period. There will be some increase in mid cloud during the day, with even a few spotty showers possible by Thursday evening across NE OK and NW AR. However, chances were too low to mention at this point. If trend continues, mention will likely be added to 12Z forecast. Lacy && .PRELIMINARY POINT TEMPS/POPS... TUL 90 63 89 71 / 10 10 10 40 FSM 92 67 90 69 / 10 0 10 20 MLC 91 67 89 72 / 10 10 10 10 BVO 87 59 88 68 / 10 10 10 50 FYV 87 60 88 67 / 10 0 10 30 BYV 86 58 87 65 / 10 0 10 30 MKO 88 64 87 69 / 10 10 10 30 MIO 86 57 86 66 / 0 0 10 50 F10 89 65 87 70 / 10 10 10 30 HHW 91 68 87 69 / 0 10 10 0 && .TSA WATCHES/WARNINGS/ADVISORIES... OK...None. AR...None. && $$ SHORT TERM...67 LONG TERM....67 AVIATION...30