WOUS64 KWNS 272033 WOU3 SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 633 NWS STORM PREDICTION CENTER NORMAN OK 233 PM MDT THU AUG 27 2026 SEVERE THUNDERSTORM WATCH 633 REMAINS IN EFFECT UNTIL 900 PM MDT FOR THE FOLLOWING LOCATIONS NEC005-009-013-017-031-045-075-091-113-117-161-171-280300- /O.CON.KWNS.SV.A.0633.000000T0000Z-260828T0300Z/ NE . NEBRASKA COUNTIES INCLUDED ARE ARTHUR BLAINE BOX BUTTE BROWN CHERRY DAWES GRANT HOOKER LOGAN MCPHERSON SHERIDAN THOMAS $$ SDC007-033-047-071-095-102-121-280300- /O.CON.KWNS.SV.A.0633.000000T0000Z-260828T0300Z/ SD . SOUTH DAKOTA COUNTIES INCLUDED ARE BENNETT CUSTER FALL RIVER JACKSON MELLETTE OGLALA LAKOTA TODD $$ ATTN...WFO...LBF...CYS...UNR... WTPN52 PGTW 272100 WARNING ATCG MIL 21W NWP 260827202104 2026082718 21W ETAU 004 03 355 11 SATL 060 T000 231N 1678E 045 R034 080 NE QD 090 SE QD 040 SW QD 040 NW QD T012 248N 1673E 050 R050 030 NE QD 040 SE QD 000 SW QD 020 NW QD R034 100 NE QD 130 SE QD 040 SW QD 060 NW QD T024 267N 1666E 050 R050 020 NE QD 030 SE QD 000 SW QD 000 NW QD R034 110 NE QD 130 SE QD 030 SW QD 050 NW QD T036 288N 1658E 045 R034 100 NE QD 170 SE QD 040 SW QD 050 NW QD T048 305N 1651E 045 R034 090 NE QD 150 SE QD 050 SW QD 070 NW QD T060 314N 1645E 045 R034 120 NE QD 090 SE QD 050 SW QD 060 NW QD T072 320N 1648E 040 R034 160 NE QD 080 SE QD 050 SW QD 050 NW QD T096 329N 1663E 040 R034 090 NE QD 090 SE QD 050 SW QD 060 NW QD T120 346N 1685E 035 R034 060 NE QD 070 SE QD 060 SW QD 140 NW QD AMP 096HR BECOMING EXTRATROPICAL 120HR EXTRATROPICAL SUBJ: TROPICAL STORM 21W (ETAU) WARNING NR 004 1. TROPICAL STORM 21W (ETAU) WARNING NR 004 03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 271800Z --- NEAR 23.1N 167.8E MOVEMENT PAST SIX HOURS - 355 DEGREES AT 11 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT REPEAT POSIT: 23.1N 167.8E --- FORECASTS: 12 HRS, VALID AT: 280600Z --- 24.8N 167.3E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 000 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT 130 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 340 DEG/ 10 KTS --- 24 HRS, VALID AT: 281800Z --- 26.7N 166.6E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 000 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT 130 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 340 DEG/ 11 KTS --- 36 HRS, VALID AT: 290600Z --- 28.8N 165.8E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 340 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 291800Z --- 30.5N 165.1E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT 150 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 60 HR POSIT: 330 DEG/ 05 KTS --- 60 HRS, VALID AT: 300600Z --- 31.4N 164.5E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 025 DEG/ 03 KTS --- 72 HRS, VALID AT: 301800Z --- 32.0N 164.8E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 055 DEG/ 04 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 311800Z --- 32.9N 166.3E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING SUBTROPICAL RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 045 DEG/ 06 KTS --- 120 HRS, VALID AT: 011800Z --- 34.6N 168.5E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY SUBTROPICAL RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT --- REMARKS: 272100Z POSITION NEAR 23.5N 167.7E. 27AUG26. TROPICAL STORM 21W (ETAU), LOCATED APPROXIMATELY 238 NM NORTH-NORTHEAST OF WAKE ISLAND, HAS TRACKED NORTHWARD AT 11 KNOTS OVER THE PAST SIX HOURS. MINIMUM CENTRAL PRESSURE AT 271800Z IS 995 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 271800Z IS 20 FEET. NEXT WARNINGS AT 280300Z, 280900Z, 281500Z AND 282100Z. FOR SIX-HOURLY UPDATES. FOR SIX-HOURLY UPDATES. // 2126082518 167N1674E 20 2126082600 176N1675E 20 2126082606 184N1675E 25 2126082612 194N1674E 25 2126082618 199N1676E 30 2126082700 204N1677E 35 2126082706 212N1679E 40 2126082712 220N1679E 40 2126082718 231N1678E 45 NNNN WWUS83 KUNR 272034 SPSUNR Special Weather Statement National Weather Service Rapid City SD 234 PM MDT Thu Aug 27 2026 SDZ044-272100- Bennett SD- 234 PM MDT Thu Aug 27 2026 ...AN AREA OF STRONG THUNDERSTORMS WILL IMPACT NORTH CENTRAL BENNETT COUNTY UNTIL 3 PM MDT... At 234 PM MDT, Doppler radar was tracking an area of strong thunderstorms near Hisle, or 11 miles north of Martin, moving southeast at 10 mph. HAZARD...Wind gusts up to 40 mph and nickel size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Hisle. PRECAUTIONARY/PREPAREDNESS ACTIONS... This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 4339 10160 4331 10149 4320 10175 4339 10187 TIME...MOT...LOC 2034Z 302DEG 10KT 4333 10172 MAX HAIL SIZE...0.88 IN MAX WIND GUST...40 MPH $$ JC FAUS23 KZAB 272034 ZAB3 CWA 272034 ZAB CWA 302 VALID UNTIL 272105 FROM 30ESE FTI-50WSW TCC-30SSE ABQ-10ENE ABQ-30ESE FTI AREA TSRA WITH HVY PCPN. MOV FROM 32005KT TOPS TO FL450. CONDS CONTG BYD 272105Z. NM =