Day 1 Areal Outline

Issued: 2026-08-21 12:44 UTC

Summary

A slight risk of tornadoes, large hail, and damaging winds exists across parts of the Southeast, Midwest, and Gulf Coast regions through Friday. Marginal to slight risks for severe thunderstorms are also expected throughout much of the central and eastern United States.

Product Text

000 WUUS01 KWNS 211244 PTSDY1 DAY 1 CONVECTIVE OUTLOOK AREAL OUTLINE NWS STORM PREDICTION CENTER NORMAN OK 0742 AM CDT FRI AUG 21 2026 VALID TIME 211300Z - 221200Z PROBABILISTIC OUTLOOK POINTS DAY 1 ... TORNADO ... 0.02 43288770 41638771 40588824 40208919 40039015 40199100 40669154 41759140 42589073 43129013 43568952 44348863 44238790 43288770 0.02 41720224 42420269 42900259 43020156 42499984 42149876 41859851 41329910 41160029 41400170 41720224 && ... HAIL ... 0.05 32337819 33728140 34618236 35378239 36208200 36888046 37007790 36487518 0.05 43740069 42809787 41879620 40959453 40939334 41339228 41959143 42759096 44858869 45298785 45078715 43148732 41488708 40588755 39828838 39268952 39069222 38919329 38289564 38219822 38520118 38760183 39400245 40450304 41490334 42320354 43120380 44050370 44340277 43740069 0.15 40330162 41780260 43520329 43770267 43460153 42499878 41909735 41469634 40979589 40339572 39329635 39199695 39209805 39390002 39590099 40330162 0.15 41619084 42569044 43448955 43728867 43628808 43228792 42588778 41688750 41208753 40788783 40458830 39989008 40039078 40159119 40659147 41619084 CIG1 42809915 41849669 41449595 41019564 40369546 40029573 40009722 40270038 40700189 41000227 42470321 43710348 43940277 42809915 && ... WIND ... 0.05 41528620 40638677 40068751 39088868 38709032 39049222 38899330 38089428 37419542 37269644 37329731 38039967 38120075 38290163 38770288 41460407 43190392 44050370 44340277 44100191 42799787 41859615 40949450 40949333 41339227 41979139 42739094 43369033 44938865 45278787 45028695 44468638 42518570 41528620 0.05 31248059 29868840 29348962 29089078 29289200 29769329 31019496 32549607 33659611 34469562 34559472 34099404 32959316 32339217 32209085 32438839 32838550 33078456 33458393 33988351 35028327 35618295 36238198 36888047 37007783 36487516 0.15 42559042 43488954 44248860 44358792 43968742 42948757 41498711 41098740 40448827 39999005 40039076 40159119 40669146 41629085 42559042 0.15 33158219 35128114 35738007 36057911 36007780 35637699 35177693 34977706 34597785 34127873 33527988 32758050 32508157 33158219 0.15 42339928 41269715 40639632 39889603 39269638 38989689 38839754 39110007 39580099 40350163 41150216 41770260 42100264 42590231 42770142 42339928 CIG1 40829818 39979711 39179630 38549581 37959554 37629576 37639668 37859774 38349959 38640159 39160227 39950282 41830351 43400327 43740271 43380152 42580052 41579926 40829818 && CATEGORICAL OUTLOOK POINTS DAY 1 ... CATEGORICAL ... SLGT 35128114 35738007 36057911 36007780 35637699 35177693 34977706 33527988 32758050 32508157 33158219 35128114 SLGT 43770267 43460153 42499878 41909735 41469634 40979589 40339572 39269638 38989689 38839754 39110007 39580099 40330162 41770260 43520329 43770267 SLGT 41629085 42569044 43488954 44248860 44358792 43968742 42948757 41498711 41098740 40448827 39989008 40039078 40159119 40659147 41629085 MRGL 31248059 29868840 29348962 29089078 29289200 29769329 31019496 32549607 33659611 34469562 34559472 34099404 32959316 32339217 32209085 32438839 32838550 33078456 33458393 33988351 35028327 35618295 36238198 36888047 37007783 36487517 MRGL 43190392 44050370 44340277 43740069 42809787 40959452 40949333 41339228 41959143 42759096 44938865 45298785 45028695 44468638 42518570 41528620 40638677 39088868 38709032 39049222 38899330 38089428 37419542 37269644 37329731 38039967 38120075 38290163 38770288 41460407 43190392 TSTM 32281691 33961721 34861720 35421685 36091645 36521635 37071654 38281772 38771823 39501834 40301803 41861674 44011551 44591473 44851379 44921239 44791092 44670917 44470841 43950753 43360689 43310626 43450588 43870523 44410467 44850370 45050226 44439878 43499642 42899572 42409510 42259456 42379398 42969324 44409159 46169019 46988902 47538783 47908634 99999999 28819448 29439545 30729697 31979884 32550075 32630262 32250525 31480692 99999999 48378988 47229113 46289211 45889313 45799424 46509529 47959632 49399705 99999999 49422034 48592046 47302056 45822048 43872056 43402060 43142094 43042134 43062188 43252218 44022233 45622225 46302248 46712329 47022408 47732445 48052430 48202382 48102313 47902296 47292320 47002288 47102235 47572213 49492272 99999999 42438156 40578313 39498414 38508590 38038758 37948944 38099133 38219219 38079289 37509344 36989350 35729279 34279206 33359139 33069085 33019015 33188954 33608881 34388771 35208705 36248627 37368498 39018197 39727978 39907800 39767691 39327569 38857430 && THERE IS A SLIGHT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 15 WSW CLT 25 SSW GSO 25 NW RDU 10 NNE RWI 40 N EWN 10 NE EWN 0 - EWN 45 NNE CHS 30 WSW CHS 35 NW SAV 20 SW AGS 15 WSW CLT THERE IS A SLIGHT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 25 SE RAP 40 S PHP 0 - ONL 0 - OFK 25 SSW TQE 25 S OMA 20 NNW FNB 20 ENE MHK 15 SW MHK 0 - SLN 25 SW HLC 50 SSW MCK 15 S IML 20 SSE AIA 40 SSW RAP 25 SE RAP THERE IS A SLIGHT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 20 WNW MLI 20 NE DBQ 25 NNW MSN 20 N OSH 15 SE GRB 15 SE MTW 15 NE RAC 0 - VPZ 30 SW VPZ 30 N CMI 25 WNW SPI 25 ENE UIN 15 N UIN 20 WSW BRL 20 WNW MLI THERE IS A MARGINAL RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 50 E SSI 55 S MOB 15 W BVE 35 S HUM 35 SSE 7R4 25 S LCH 20 SW LFK 40 NNE CRS 25 SE DUA 30 SSE MLC 35 S RKR 20 E DEQ 25 SW ELD 15 SSW MLU 50 NNE HEZ 20 ENE MEI 15 NNW AUO 30 E LGC 30 ESE ATL 10 WNW AHN 50 NW AND 20 SSW HSS 30 SE TRI 20 SE PSK 25 NNE AVC 60 ENE ECG THERE IS A MARGINAL RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 50 WNW CDR 30 W RAP 25 NE RAP 50 SSW PIR 25 WSW YKN 40 NW LWD 25 SSW OXV 20 NNE OTM 15 ENE CID 25 NNW DBQ 40 NW GRB 40 SSE IMT 50 S ESC 15 NNW MBL 20 NNW AZO 15 SSE SBN 15 NNE LAF 35 NNE SLO 0 - STL 15 N COU 20 NE SZL 60 SSE OJC 20 S CNU 40 NW BVO 25 SSE ICT 25 NE DDC 15 N GCK 55 WNW GCK 50 NNW LAA 40 S TOR 50 WNW CDR GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 35 SSE SAN 15 E RAL 25 W DAG 40 N DAG 45 SSW DRA 20 WSW DRA 40 NW DRA 40 WNW TPH 60 SSE NFL 20 E NFL 35 ENE LOL 30 WSW OWY 45 NE BOI 55 SW SMN 20 SSE SMN 25 N MQM 10 NE WEY 15 NW COD 30 E COD 20 E WRL 40 NNW CPR 30 NNE CPR 50 NE CPR 35 SSE GCC 45 E GCC 50 S 2WX 60 S Y22 25 W HON 15 ESE FSD 30 NW SLB 15 SSE SLB 30 SW FOD 15 SE FOD 15 SSE MCW 35 S EAU 25 S IWD 30 WSW CMX 40 NE CMX 110 NNE MQT ...CONT... 40 SSE GLS 20 SW HOU 35 WNW CLL 15 NNE BWD 50 ENE BGS 35 E HOB 40 NW GDP 40 SW ELP ...CONT... 50 NNE GNA 15 E BFW 40 S DLH 50 ENE STC 20 NNW STC 45 N AXN 10 SW TVF 45 N HCO ...CONT... 75 NNW OMK 45 WNW OMK 20 WSW EAT 35 ENE DLS 40 SE RDM 65 SSE RDM 70 NNW LKV 65 NNE LMT 65 N LMT 70 NNE MFR 45 E EUG 15 E PDX 50 N PDX 25 SW OLM 10 WNW HQM 15 SSE UIL 15 ENE UIL 15 WNW CLM 15 E CLM 30 ESE CLM 25 NNW OLM 0 - OLM 25 S SEA 10 NE SEA 50 N BLI ...CONT... 70 NNE CLE 40 NNW CMH 30 S DAY 25 NNW SDF 0 - EVV 15 NW MDH 25 E VIH 25 S JEF 45 WNW TBN 20 N SGF 20 SSW SGF 35 NNE RUE 10 NW PBF 25 WSW GLH 30 SSE GLH 35 S GWO 40 SE GWO 20 W CBM 25 SSW MSL 40 NNW HSV 25 ENE BNA 50 SSW LEX 20 SE UNI 10 ENE MGW 20 NW HGR 30 S CXY 20 NW DOV 45 SSE ACY