NOAA
SPC Severe Thunderstorm Watch 559
WW 559 SEVERE TSTM AZ 242100Z – 250400Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 559 NWS Storm Prediction Center Norman OK 200 PM MST Wed Jul 24 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central and southern Arizona * Effective this Wednesday afternoon and evening from 200 PM until 900 PM MST. * Primary threats include... Isolated damaging wind gusts to 70 mph possible SUMMARY...Clusters of thunderstorms will form over the Rim and spread southwestward to the lower deserts through late evening. The storm environment will favor strong downdrafts capable of producing occasional damaging/severe outflow gusts of 60-70 mph. The severe thunderstorm watch area is approximately along and 75 statute miles north and south of a line from 30 miles west southwest of Phoenix AZ to 65 miles east northeast of Tucson AZ. 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. && AVIATION...A few severe thunderstorms with hail surface and aloft to 0.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 03020. ...Thompson
SPC – No watches are valid as of Mon Jul 22 02:17:02 UTC 2024
No watches are valid as of Mon Jul 22 02:17:02 UTC 2024.
SPC Severe Thunderstorm Watch 558
WW 558 SEVERE TSTM AZ 212050Z – 220300Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 558 NWS Storm Prediction Center Norman OK 150 PM MST Sun Jul 21 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central and South-Central Arizona * Effective this Sunday afternoon and evening from 150 PM until 800 PM MST. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 75 mph possible SUMMARY...A broken linear cluster of thunderstorms will move southward through the afternoon into the evening across the Watch area. The stronger thunderstorm cores and associated thunderstorm outflow will be potentially capable of 60 to 75 mph gusts as this activity moves into the lower deserts. Marginally severe hail (diameter up to 1 inch) may accompany the stronger thunderstorms this afternoon near the Mogollon Rim. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 55 miles west southwest of Prescott AZ to 95 miles east southeast of Phoenix AZ. 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 1 inch. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 01015. ...Smith
SPC – No watches are valid as of Sat Jul 20 05:02:02 UTC 2024
No watches are valid as of Sat Jul 20 05:02:02 UTC 2024.
SPC Severe Thunderstorm Watch 557
WW 557 SEVERE TSTM CO NE SD 192300Z – 200500Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 557 NWS Storm Prediction Center Norman OK 500 PM MDT Fri Jul 19 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Northeast Colorado Western and Central Nebraska Southwest South Dakota * Effective this Friday afternoon and evening from 500 PM until 1100 PM MDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 75 mph possible Scattered large hail and isolated very large hail events to 2 inches in diameter possible SUMMARY...Ongoing supercells should continue to pose a threat for large hail up to 1-2 inches in diameter as they move generally southward this evening. Some threat for damaging winds around 60-75 mph may also exist, especially if a thunderstorm cluster can develop later this evening. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 5 miles east northeast of Rapid City SD to 35 miles west southwest of North Platte NE. 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. && OTHER WATCH INFORMATION...CONTINUE...WW 555...WW 556... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 35025. ...Gleason
SPC Severe Thunderstorm Watch 556
WW 556 SEVERE TSTM CO KS OK TX 192235Z – 200500Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 556 NWS Storm Prediction Center Norman OK 535 PM CDT Fri Jul 19 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Colorado Southwest Kansas Far Northwest Oklahoma and the Oklahoma Panhandle The Texas Panhandle * Effective this Friday afternoon from 535 PM until Midnight CDT. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated very large hail events to 2 inches in diameter possible SUMMARY...Thunderstorms should generally move southward this evening while posing a threat for scattered damaging winds around 60-70 mph, with isolated stronger gusts possible. Occasional hail around 1-2 inches in diameter may also occur with any persistent supercells. The severe thunderstorm watch area is approximately along and 65 statute miles north and south of a line from 40 miles south southwest of Springfield CO to 55 miles east southeast of Dodge City KS. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). 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 555... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 34025. ...Gleason