NOAA
SPC PDS Severe Thunderstorm Watch 260
WW 260 SEVERE TSTM KS OK TX 191935Z – 200300Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 260 NWS Storm Prediction Center Norman OK 235 PM CDT Sun May 19 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western and Central Kansas Northwestern Oklahoma Northeastern Texas Panhandle * Effective this Sunday afternoon and evening from 235 PM until 1000 PM CDT. ...THIS IS A PARTICULARLY DANGEROUS SITUATION... * Primary threats include... Widespread damaging winds expected with scattered significant gusts to 90 mph likely Widespread large hail expected with scattered very large hail events to 4 inches in diameter likely A few tornadoes possible SUMMARY...Numerous severe thunderstorms are expected to develop and track rapidly eastward across the watch area through the afternoon evening. Supercells capable of giant hail, damaging winds, and isolated tornadoes will be the main threat early. Storms will organize into multiple fast-moving bowing lines through the evening with a risk of widespread damaging winds. The severe thunderstorm watch area is approximately along and 135 statute miles east and west of a line from 55 miles southwest of Alva OK to 45 miles northwest of Russell KS. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 258...WW 259... AVIATION...A few severe thunderstorms with hail surface and aloft to 4 inches. Extreme turbulence and surface wind gusts to 80 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24035. ...Hart
SPC Severe Thunderstorm Watch 259
WW 259 SEVERE TSTM CO NE SD 191855Z – 200200Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 259 NWS Storm Prediction Center Norman OK 1255 PM MDT Sun May 19 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northeast Colorado Western Nebraska Western and Central South Dakota * Effective this Sunday afternoon and evening from 1255 PM until 800 PM MDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph possible SUMMARY...Thunderstorms are forming over parts of western South Dakota and Nebraska. These storms will spread eastward through the afternoon and early evening, posing a risk of locally damaging winds gusts and hail. The severe thunderstorm watch area is approximately along and 65 statute miles east and west of a line from 20 miles northwest of Mobridge SD to 40 miles southeast of Sidney NE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 258... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 25030. ...Hart
SPC Severe Thunderstorm Watch 258
WW 258 SEVERE TSTM FL CW 191655Z – 192300Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 258 NWS Storm Prediction Center Norman OK 1255 PM EDT Sun May 19 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Florida Coastal Waters * Effective this Sunday afternoon and evening from 1255 PM until 700 PM EDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2 inches in diameter possible Isolated damaging wind gusts to 70 mph possible SUMMARY...Thunderstorms are developing along a cold front over central Florida. Other storms will focus along the sea-breeze this afternoon. A few of the storms will pose a risk of large hail and gusty/damaging winds. The severe thunderstorm watch area is approximately along and 25 statute miles east and west of a line from 5 miles northwest of Vero Beach FL to 15 miles southeast of Miami FL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 29025. ...Hart
SPC – No watches are valid as of Sun May 19 03:02:01 UTC 2024
No watches are valid as of Sun May 19 03:02:01 UTC 2024.
SPC Severe Thunderstorm Watch 257
WW 257 SEVERE TSTM MI MN WI LS 182030Z – 190300Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 257 NWS Storm Prediction Center Norman OK 330 PM CDT Sat May 18 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western Upper Michigan Minnesota Arrowhead Central and Northern Wisconsin Lake Superior * Effective this Saturday afternoon and evening from 330 PM until 1000 PM CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorms are developing along a cold front over western Wisconsin and northeast Minnesota. These storms will track eastward through the early evening, posing a risk of hail and damaging winds. The severe thunderstorm watch area is approximately along and 50 statute miles east and west of a line from 30 miles north northeast of Grand Marais MN to 35 miles south of Mosinee WI. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26030. ...Hart
SPC – No watches are valid as of Sat May 18 05:02:02 UTC 2024
No watches are valid as of Sat May 18 05:02:02 UTC 2024.