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A very warm, moist, and unstable airmass is in place from the Mid-South into the Southeast States. Thunderstorm development is ongoing along an outflow boundary in southwest/southern Middle TN, with additional development ahead of this outflow possible as well. Very strong buoyancy will support robust updraft/downdraft cycles capable of damaging gusts and isolated hail throughout the afternoon and into the evening.
SEL1 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 261 NWS Storm Prediction Center Norman OK 1125 AM CDT Mon Jun 1 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northern Alabama Northern Mississippi Southwestern Tennessee * Effective this Monday morning and evening from 1125 AM until 700 PM CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...A very warm, moist, and unstable airmass is in place from the Mid-South into the Southeast States. Thunderstorm development is ongoing along an outflow boundary in southwest/southern Middle TN, with additional development ahead of this outflow possible as well. Very strong buoyancy will support robust updraft/downdraft cycles capable of damaging gusts and isolated hail throughout the afternoon and into the evening. The severe thunderstorm watch area is approximately along and 65 statute miles north and south of a line from 30 miles northwest of Oxford MS to 30 miles northeast of Anniston AL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU1). 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 30030. ...Mosier
Thunderstorm development is ongoing across the higher terrain of the central Rockies, with movement downstream into the foothill expected shortly. Further eastward development into more of the central High Plains is anticipated over the next several hours. Environmental conditions favor supercells capable of large hail and damaging gusts. Some isolated very large hail and significant severe gusts are also possible. A low-probability tornado risk exists across northeast Colorado as well.
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 262
NWS Storm Prediction Center Norman OK
1250 PM MDT Mon Jun 1 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Eastern Colorado
Nebraska Panhandle
Southeast Wyoming
* Effective this Monday afternoon and evening from 1250 PM until
800 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 2.5
inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorm development is ongoing across the higher
terrain of the central Rockies, with movement downstream into the
foothill expected shortly. Further eastward development into more of
the central High Plains is anticipated over the next several hours.
Environmental conditions favor supercells capable of large hail and
damaging gusts. Some isolated very large hail and significant severe
gusts are also possible. A low-probability tornado risk exists
across northeast Colorado as well.
The severe thunderstorm watch area is approximately along and 85
statute miles east and west of a line from 40 miles north northeast
of Torrington WY to 50 miles south of Limon CO. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).
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 261...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
24025.
...Mosier
Thunderstorm coverage and intensity is expected to increase this afternoon into this evening from southern Missouri into central Arkansas. A very warm, moist, and unstable airmass is in place, supporting the potential for robust updrafts capable of damaging gusts and isolated hail.
SEL3 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 263 NWS Storm Prediction Center Norman OK 215 PM CDT Mon Jun 1 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northern and Central Arkansas Far Southern Missouri * Effective this Monday afternoon and evening from 215 PM until 900 PM CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorm coverage and intensity is expected to increase this afternoon into this evening from southern Missouri into central Arkansas. A very warm, moist, and unstable airmass is in place, supporting the potential for robust updrafts capable of damaging gusts and isolated hail. The severe thunderstorm watch area is approximately along and 70 statute miles north and south of a line from 10 miles west of Fayetteville AR to 95 miles southeast of Batesville AR. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). 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 261...WW 262... 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 30025. ...Mosier
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