Area Forecast Discussion
Issued by NWS Amarillo, TX
Issued by NWS Amarillo, TX
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205 FXUS64 KAMA 181951 AFDAMA Area Forecast Discussion National Weather Service Amarillo TX 251 PM CDT Sat May 18 2024 ...New SHORT TERM, LONG TERM... .SHORT TERM ... (This evening through Sunday night) Issued at 250 PM CDT Sat May 18 2024 Today will be hot and dry with temperatures widespread in the 90s, with Palo Duro Canyon possibly reaching the triple digits. Otherwise, per satellite imagery as of 1:30 PM, there are two areas of apparent lift: the northeastern combined Panhandles where cumulus have developed, and northern New Mexico where there is a broader field of cumulus. There is a very low chance (10%) for a shower to either move into the northwest from New Mexico, or an even lower chance (<10%) for a shower to develop in the central Texas Panhandle. If either case occurs, the very hot and dry conditions would favor gusty winds and very little to no rain at the surface. Tonight, low-level moisture will move back into the Panhandle as surface winds turn southeasterly to easterly. A subtle shortwave trough embedded in the southwesterly flow aloft will approach the Panhandles later Sunday morning as a surface trough pushes east through much of the Panhandles. Unsurprisingly, there is disagreement among guidance regarding how far east the surface trough will be by late tomorrow afternoon. Nontheless, forcing for ascent arrives in the mid to late afternoon, and some CAMs develop a high-based shower or thunderstorm in the vicinity of eastern Cimarron or Texas county. Should this occur, the the primary threats would be damaging winds (given around 1700 J/kg DCAPE) and large hail. These threats would increase as the quality of low-level moisture increases with eastward extent. Of lower confidence but still worth mentioning is that potential for a thunderstorm to develop in the eastern stack of Texas Panhandle counties. There is weaker forcing and more capping questions in this area, hence the very low confidence. Should a thunderstorm develop, it could become severe with damaging winds and large hail the primary threats. However, the question would then become whether or not it can mature enough to become severe before moving into western Oklahoma. Besides the severe thunderstorm threat, Sunday will likely be hotter than today with Borger and Palo Duro Canyon favored to reach triple digits. Vanden Bosch && .LONG TERM ... (Monday through next Friday) Issued at 250 PM CDT Sat May 18 2024 A little bit going on in the extended. For the most part quiet weather is expected for the majority of the Panhandles. That being said, we are still looking at a hot day on Monday with temperatures likely exceeding 100 degrees in the Palo Duro Canyon State Park area. So it`s important to take the proper heat safety precautions, and make sure to protect yourself from heat related illnesses if your planning on being in the State Park area for several hours. A weak cold front will knock temperatures back a bit into the low 90s for highs on Tuesday, but Tuesday night will get a secondary cold air push which will set highs for the low 80s on Wednesday. At this time we`ll transition from zonal flow back to some southwest flow on Wednesday night into Thursday as another upper level disturbance makes its way in from the Pacific Northwest. Some return moisture from the Gulf along with a possible dryline setup will allow for possible severe storms on Thursday afternoon. If storms can form of the dryline they would likely be discrete and would likely be severe with all hazards possible. Right now confidence is very low, as SPC outlook is further east, but the eastern Panhandles could still see something. Again, this is a highly conditional severe threat. Friday, southwest flow ramps up again as the upper trough axis to the north takes a pendulum swing from southwest to northeast, and that sets up a pretty good dryslot scenario, for elevated (possibly critical) Fire Weather. Breezy winds 20-30 mph with RH values below 10 percent as well as temperatures back in the upper 80s to lower 90s. Weber && .AVIATION... (18Z TAFS) Issued at 1217 PM CDT Sat May 18 2024 VFR conditions are anticipated through the next 24 hours. There is a very low chance for a shower to develop this afternoon in the Oklahoma and central Texas Panhandle, thus possibly impacting KGUY and KAMA. If this happens, there could be a strong downdraft associated with the shower. Otherwise, surface winds will generally be around 10-15 kts and turn southeasterly this evening then southerly to southwesterly tomorrow morning. Low-level wind shear is expected at KGUY tonight. && .PRELIMINARY POINT TEMPS/POPS... Amarillo TX 59 97 57 98 / 0 0 0 0 Beaver OK 63 98 57 98 / 10 20 10 0 Boise City OK 53 92 53 93 / 10 10 0 0 Borger TX 64 102 58 102 / 0 10 0 0 Boys Ranch TX 58 99 54 100 / 0 0 0 0 Canyon TX 56 97 54 98 / 0 0 0 0 Clarendon TX 60 97 60 98 / 0 10 0 0 Dalhart TX 53 93 51 95 / 10 0 0 0 Guymon OK 59 96 53 96 / 10 20 0 0 Hereford TX 56 98 54 98 / 0 0 0 0 Lipscomb TX 64 96 60 98 / 10 10 10 0 Pampa TX 62 97 59 99 / 0 10 0 0 Shamrock TX 63 97 60 99 / 0 10 10 0 Wellington TX 63 98 62 100 / 0 10 10 0 && .AMA WATCHES/WARNINGS/ADVISORIES... TX...None. OK...None. && $$ SHORT TERM...52 LONG TERM....89 AVIATION...52