Day 1 Areal Outline

Issued: 2026-09-20 12:28 UTC

Summary

Severe thunderstorms, including risks of tornadoes, hail, and damaging winds, are possible across parts of the central and eastern United States on Sunday. The risk levels range from marginal to slight for much of the affected area.

Product Text

000 WUUS01 KWNS 201228 PTSDY1 DAY 1 CONVECTIVE OUTLOOK AREAL OUTLINE NWS STORM PREDICTION CENTER NORMAN OK 0727 AM CDT SUN SEP 20 2026 VALID TIME 201300Z - 211200Z PROBABILISTIC OUTLOOK POINTS DAY 1 ... TORNADO ... 0.02 37830258 37810311 37920360 38350391 38990395 39570389 39990355 40200330 40240250 40080204 39840178 39400152 38690148 38270172 38010201 37830258 && ... HAIL ... 0.05 36899731 37079682 37399554 37689396 37669317 37569281 37399259 37079253 36609275 35749335 34309476 33159688 32679847 32350032 32400122 32750172 33320197 34410202 35240203 35870215 35980225 36810322 37550414 38200447 39430445 40200427 40650394 41080314 41290243 41200186 40960144 40270105 39280086 38260087 37730082 37360058 36900026 36579964 36509904 36649827 36899731 0.15 38300171 38020202 37850246 37820309 37920362 38340391 38980397 39560389 39990357 40190330 40230259 40090207 39930187 39430153 38790147 38300171 CIG1 38350412 38950417 39610411 40420359 40590311 40490251 40100203 39900177 39430150 38800144 38320168 38010203 37860242 37820309 37920359 38350412 && ... WIND ... 0.05 37598910 35709340 34319479 33219674 32659843 32350029 32410121 32770172 33350197 34240200 35330205 35890215 36570292 37550415 38200450 39420449 40240427 40660396 41080315 41300241 41220190 40930142 40270104 39190085 38150090 37670082 36880028 36569963 36509899 36769778 37279621 37869478 39459110 40438620 40278304 39728091 38717870 38187803 37727784 37437791 37217809 36727873 36647926 36898003 37538090 37938185 38248352 38218508 38028794 37598910 0.15 38000204 37830257 37820310 37950358 38340390 39010394 39570387 39980358 40180331 40230253 40100206 39880180 39430153 38730147 38280172 38000204 0.15 34569539 34269597 33709712 33619780 33649849 33929879 34129888 34399892 34659889 35059869 35609820 36149741 36569630 36649555 36489488 36159450 35719442 35319446 34989477 34569539 CIG1 33889678 34019814 34199886 34439891 34619885 35009861 35169708 35059660 34859638 34129629 33889678 && CATEGORICAL OUTLOOK POINTS DAY 1 ... CATEGORICAL ... SLGT 34659889 35059869 35609820 36149741 36569630 36649555 36489488 36159450 35719442 35319446 34989477 34569539 33709712 33619780 33649849 33929879 34399892 34659889 SLGT 39560389 39990357 40190330 40230253 40100206 39880180 39430153 38730147 38280172 38000204 37830257 37820310 37920362 38340391 38980397 39560389 MRGL 39420449 40240427 40660396 41080315 41300241 41220190 40930142 40270104 39190085 37730082 36900026 36579964 36509902 36569872 36809766 37279621 39459110 40438620 40278304 39728091 38717870 38187803 37727784 37437791 37217809 36727873 36647926 36898003 37538090 37938185 38248352 38028794 37598910 35719338 34309476 33219674 32659843 32350032 32400122 32750172 33320197 35330205 35870215 37550415 38200450 39420449 TSTM 31360683 32290692 32820648 33860468 34780312 35080288 35770279 36180328 36790431 37690546 40180599 41260691 42520955 43321013 44221000 44650958 45720766 45830677 45760554 45640319 45500223 44360043 43189925 41999911 41109899 40509908 39669893 39159812 39809674 40549541 40989481 41449484 42049575 42699712 43569696 43889598 42309085 42478503 42178287 42108244 41448002 41427817 41217408 40827007 99999999 32389073 34098967 35248909 36758752 37308641 37518629 37708642 37818679 37498805 35749149 33669352 32649490 31869600 31319601 31049568 31539454 31389297 30939224 30549160 30579099 31149064 31779049 32389073 99999999 37597498 37157607 35637857 34967975 34457988 34137952 34747806 36137457 99999999 31501259 31931218 32391134 32511089 32341026 31690969 31210922 30870898 && THERE IS A SLIGHT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 20 E LTS 30 NNW FSI 35 NNW CHK 30 ESE END 20 SW BVO 30 ESE BVO 10 SW GMJ 20 WNW FYV 25 SW FYV 0 - FSM 10 WSW RKR 30 SE MLC 25 W GYI 45 ESE SPS 25 S SPS 15 WSW SPS 25 SE LTS 20 E LTS THERE IS A SLIGHT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 25 NNW LIC 25 SW AKO 0 - AKO 35 E AKO 35 SW IML 35 N GLD 10 ENE GLD 45 SSE GLD 55 ENE LAA 35 E LAA 20 SSE LAA 25 ESE LHX 10 SSW LHX 30 NW LHX 25 SW LIC 25 NNW LIC THERE IS A MARGINAL RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 30 SE DEN 45 NE DEN 50 NW AKO 10 W SNY 35 ENE SNY 50 NNW IML 30 NNE IML 25 WNW MCK 45 ESE GLD 15 SSW GCK 40 ESE LBL 20 NNE GAG 25 SW AVK 15 S AVK 35 NNE END 35 NNW BVO 35 S UIN 50 N IND 20 NNW CMH 35 SSW HLG 30 NNE SHD 25 E CHO 35 WNW RIC 35 W RIC 35 N AVC 35 ENE DAN 0 - DAN 30 S ROA 20 SE BKW 35 SSW CRW 50 N JKL 20 W EVV 15 SSE MDH 35 NNW RUE 25 NW DEQ 25 NNE DAL 25 WSW MWL 40 W ABI 20 NE BGS 40 NNW BGS 25 SSW LBB 20 WNW AMA 25 ESE DHT 20 NNE TAD 0 - PUB 30 SE DEN GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 40 SW ELP 45 NW ELP 20 W ALM 40 NNW ROW 30 NNE CVS 40 E TCC 20 SW DHT 20 SSW CAO 10 ENE RTN 30 NE ALS 55 WSW FCL 40 SSE RWL 30 E BPI 35 ESE JAC 55 NE JAC 30 WNW COD 40 E BIL 60 SW MLS 25 NNW 4BQ 15 ENE 2WX 30 S Y22 10 W PIR 40 S 9V9 15 N BUB 25 N EAR 15 SSW EAR 55 N RSL 35 NW SLN 35 S BIE 15 S SDA 35 ENE SDA 45 SE DNS 20 WNW DNS 20 SE YKN 10 W FSD 25 NW OTG 10 SW DBQ 30 SW LAN 30 S MTC 40 SSE MTC 10 WNW FKL 35 SE BFD 30 SSW POU 30 S ACK ...CONT... 40 W JAN 20 SSW UOX 25 SSW MKL 0 - HOP 25 N BWG 40 N BWG 50 N BWG 20 ENE OWB 45 SW EVV 10 E BVX 30 ENE TXK 20 NNW GGG 25 ESE CRS 50 NW UTS 25 NNW UTS 25 NNE LFK 25 SSE IER 35 S ESF 25 W BTR 10 ENE BTR 10 WSW MCB 40 N MCB 40 W JAN ...CONT... 35 SE WAL 20 NNE ORF 20 SE RDU 30 SW SOP 20 NNW FLO 10 ESE FLO 25 WSW OAJ 85 NE HSE ...CONT... 100 S GBN 75 SSE GBN 30 NW TUS 30 N TUS 45 ENE TUS 15 NNW DUG 30 SE DUG 55 SE DUG