Day 1 Areal Outline

Issued: 2026-08-11 12:28 UTC

Summary

Severe thunderstorms capable of producing tornadoes, large hail, and damaging winds are expected throughout much of the central and eastern United States today. An enhanced risk of severe weather is centered over parts of the Midwest, while slight and marginal risks extend across portions of the South and Plains.

Product Text

000 WUUS01 KWNS 111228 PTSDY1 DAY 1 CONVECTIVE OUTLOOK AREAL OUTLINE NWS STORM PREDICTION CENTER NORMAN OK 0726 AM CDT TUE AUG 11 2026 VALID TIME 111300Z - 121200Z PROBABILISTIC OUTLOOK POINTS DAY 1 ... TORNADO ... 0.02 37188188 37288263 37658514 38098640 39418890 40539043 41979153 42589153 42769075 41818704 40938408 39878129 39328056 38738026 38138030 37658058 37318112 37188188 && ... HAIL ... 0.05 40509263 40949513 41169713 41259886 41540025 41980156 43080390 44180402 45940398 46740370 47660242 47949995 47539836 47059729 46289569 45639435 45129326 44569197 43789112 42679059 41969057 41389088 40859157 40509263 0.15 46839779 46149760 45699815 45019927 44309923 43059848 42589882 42389952 42470140 42920207 43580291 44160345 45500332 46700302 47170169 47139935 46839779 CIG1 45780401 46620356 46850299 46920228 46910164 46630092 45820095 44090117 42860040 42310062 42220144 42450210 43130347 43480390 45780401 && ... WIND ... 0.05 30668082 30988324 31608481 33068639 34218686 35298688 36498678 37078712 38898967 40359201 40949510 41139703 41259873 41480006 41920137 43160400 45870401 46770373 47650244 47939985 47559834 47109744 45209350 44529185 43938957 42458422 42048254 41587949 40917565 40027314 0.05 32291606 33131633 34231680 35271670 35601614 35381528 33591452 32231494 0.15 36877754 35977813 35357938 35058088 35408227 36618376 37538571 38648770 40369097 41249231 42009246 42799202 43099130 43108941 42658672 39197853 38527793 36877754 0.15 42820198 43310257 44010342 45490361 46100352 46610313 47150170 47109943 46899775 46209760 45699798 45019927 44249910 43029848 42679878 42369948 42450130 42820198 0.30 42408905 41538592 40268306 39618249 38448163 37558161 37208246 37238346 38138534 39668775 40798971 41669059 42259045 42438981 42408905 CIG1 37348407 37598504 38118593 39538841 41299103 42049158 42669125 42909023 42818871 41858584 40818347 39928229 39288192 38778188 38358214 37648267 37358350 37348407 && CATEGORICAL OUTLOOK POINTS DAY 1 ... CATEGORICAL ... ENH 42259045 42438981 42408905 41538592 40268306 38778188 37648267 37358350 37358370 38138534 39668775 40798971 41669059 42259045 SLGT 42799202 43099130 43108941 42658672 39197853 38527793 36877754 35977813 35357938 35058088 35408227 36618376 37538571 40369097 41249231 42009246 42799202 SLGT 46100352 46610313 47170169 47139935 46899775 46209760 45699798 45019927 44249910 43029848 42589882 42369948 42450130 42820198 44010342 45490361 46100352 MRGL 32291606 34231680 35271670 35601614 35381528 33591452 32231494 MRGL 30668082 30988324 31608481 33068639 34218686 35298688 36498678 37078712 38898967 40359201 40949513 41259886 41480006 41980156 43080390 43160400 45870401 46770373 47660242 47939985 47559834 45129326 44529185 42048254 40917565 40027314 TSTM 31961665 33861755 34981778 35931754 36241797 36511892 37572000 38702010 39771925 40951634 42191416 42711214 42861088 42620970 42350837 42040674 41740475 42330410 43020402 44270481 46280544 47410627 47890772 48411096 48701336 49751796 99999999 28319493 29169587 30059606 30959516 32069244 31098965 31178852 31968797 33348800 35288830 36598829 38318948 38979193 39279373 39299491 39829596 40009756 39899882 38400013 37300216 35990353 34160470 32300437 31520335 30730196 29240196 99999999 49609898 48049455 46568956 45938655 44328367 43548112 99999999 45456690 45626774 46306882 46397057 99999999 43147986 42127534 41147320 40227209 && THERE IS A ENHANCED RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 15 SE DBQ 40 WNW RFD 15 N RFD 25 ESE SBN 20 NNW CMH 30 NNW CRW 40 E JKL 15 SSW JKL 20 SW JKL 20 E SDF 25 WNW HUF 10 N PIA 15 NNW MLI 15 SE DBQ THERE IS A SLIGHT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 25 NE ALO 55 S LSE 0 - MSN 40 NNW BEH 35 WSW MRB 40 NE CHO 30 NNE RZZ 15 WNW RWI 10 N SOP 10 SSE CLT 15 E AVL 35 SSE LOZ 45 S SDF 30 SSE BRL 10 NE OTM 40 S ALO 25 NE ALO THERE IS A SLIGHT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 35 N 2WX 20 SW DIK 35 SSW N60 35 WNW JMS 45 W FAR 60 SW FAR 25 NE ABR 50 SW ABR 35 NNE 9V9 40 NNE ONL 10 NW ONL 30 ESE ANW 30 NNW MHN 55 E CDR 20 W RAP 0 - 2WX 35 N 2WX THERE IS A MARGINAL RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 35 SE CZZ 45 S DAG 30 N DAG 65 NE DAG 50 S LAS 10 E BLH 35 SW YUM THERE IS A MARGINAL RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 50 SE SSI 15 N VLD 35 W ABY 40 SSE BHM 30 S HSV 45 N HSV 25 NNW BNA 35 NE HOP 20 E ALN 35 ENE IRK 20 NE SDA 35 N EAR 25 W BBW 25 W MHN 45 WNW CDR 50 WNW CDR 35 SSE BHK 40 NE BHK 60 NNE DIK 45 WSW DVL 45 NNE JMS 15 N MSP 30 SW EAU 40 SSE MTC 20 NNW ABE 55 S ISP GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 45 SSW CZZ 10 SW RAL 10 NE EDW 20 NNE NID 40 NNW NID 50 ESE FAT 35 NE MER 15 SSW TVL 30 NW NFL 30 WNW EKO 25 SE TWF 25 ESE PIH 50 S JAC 20 E BPI 35 SSE LND 30 NE RWL 40 N CYS 20 N TOR 50 WNW CDR 35 E GCC 25 ESE MLS 60 SSE GGW 55 WSW GGW 65 NNE GTF 50 ENE GPI 115 NE OMK ...CONT... 65 SSE LBX 25 W LBX 40 SSE CLL 25 NE UTS 40 SW MLU 30 SW PIB 35 NNW MOB 50 ESE MEI 25 WNW TCL 40 ESE MKL 40 SE PAH 25 SE BLV 20 ENE COU 40 SSW CDJ 0 - FLV 25 SW FNB 30 N CNK 55 SSW HSI 45 NNW DDC 25 NW EHA 40 SW CAO 60 N ROW 0 - CNM 20 SSW INK 50 NNE 6R6 55 SSE 6R6 ...CONT... 100 N DVL 40 NNE BJI 25 E IWD 30 ENE ESC 15 SW OSC 110 NNW ERI ...CONT... 35 N EPM 35 S HUL 55 SW CAR 125 NNE BML ...CONT... 75 NNE ERI 35 E BGM 0 - BDR 70 SSW BID