Month: June 2024

SPC Severe Thunderstorm Watch 407

by

WW 407 SEVERE TSTM IA NE 130025Z – 130400Z
WW 0407 Image

 URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 407
NWS Storm Prediction Center Norman OK
725 PM CDT Wed Jun 12 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western Iowa Eastern Nebraska * Effective this Wednesday evening from 725 PM until 1100 PM CDT. * Primary threats include... Scattered large hail and isolated very large hail events to 3.5 inches in diameter possible Scattered damaging wind gusts to 70 mph possible A tornado or two possible SUMMARY...A couple of severe supercells are possible over the Watch
area this evening. The stronger storms will potentially be capable
of very large to giant hail (2 to 3.5 inches in diameter), localized
severe gusts, and perhaps a tornado. The severe thunderstorm watch area is approximately along and 45
statute miles east and west of a line from 25 miles northwest of
Denison IA to 25 miles south of Omaha 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 405...WW 406... AVIATION...A few severe thunderstorms with hail surface and aloft to
3.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
33020. ...Smith

Read more

SPC Tornado Watch 406

by

WW 406 TORNADO MN WI 122355Z – 130300Z
WW 0406 Image

 URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 406
NWS Storm Prediction Center Norman OK
655 PM CDT Wed Jun 12 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Central and Eastern Minnesota Northwest Wisconsin * Effective this Wednesday evening from 655 PM until 1000 PM CDT. * Primary threats include... A couple tornadoes possible Scattered large hail and isolated very large hail events to 3 inches in diameter likely Scattered damaging wind gusts to 70 mph likely SUMMARY...Several supercells will continue east-southeast and
traverse a moist/unstable airmass in an environment with increasing
low-level shear. Large to very large hail (2-3 inches in diameter),
damaging gusts, and a couple of tornadoes are possible. The tornado watch area is approximately along and 45 statute miles
north and south of a line from 45 miles west northwest of Saint
Cloud MN to 100 miles east northeast of Saint Cloud MN. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU6). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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. && OTHER WATCH INFORMATION...CONTINUE...WW 405... AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 28030. ...Smith

Read more

SPC Severe Thunderstorm Watch 405

by

WW 405 SEVERE TSTM MN ND SD WI LS 122030Z – 130300Z
WW 0405 Image

 URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 405
NWS Storm Prediction Center Norman OK
330 PM CDT Wed Jun 12 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of northern and central Minnesota eastern North Dakota far northeastern South Dakota northwestern Wisconsin Lake Superior * Effective this Wednesday afternoon and evening from 330 PM until 1000 PM CDT. * Primary threats include... Widespread large hail and isolated very large hail events to 3 inches in diameter likely Scattered damaging winds likely with isolated significant gusts to 75 mph possible A tornado or two possible SUMMARY...Thunderstorm development is expected by 4:30 PM or so
across the eastern North Dakota/northwestern Minnesota area, with
storms quickly becoming severe. Very large/destructive hail, and
strong/damaging wind gusts are expected, with a tornado or two also
possible. The severe thunderstorm watch area is approximately along and 90
statute miles north and south of a line from 40 miles north of Fargo
ND to 35 miles east of Duluth MN. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU5). 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
3 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29040. ...Goss

Read more