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Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for Watch Status Reports.
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 310
NWS Storm Prediction Center Norman OK
210 AM CDT Thu Jun 11 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western and Central Iowa
Northern Missouri
South-Central and Eastern Nebraska
* Effective this Thursday morning from 210 AM until 1000 AM CDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 3 inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Mostly elevated strong to severe thunderstorms will
continue to develop overnight, initially across
south-central/eastern Nebraska, while eventually expanding into
western/central Iowa and far northern Missouri. This will include
the Interstate 80 corridor. Large hail is expected to be the most
common hazard, but surface-based storm potential could increase
mainly toward/after sunrise including what could be an increasing
damaging wind risk.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 40 miles west of
Kearney NE to 30 miles north of Ottumwa IA. 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.
&&
AVIATION...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 550. Mean storm motion vector
25025.
...Guyer
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 310
NWS Storm Prediction Center Norman OK
210 AM CDT Thu Jun 11 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western and Central Iowa
Northern Missouri
South-Central and Eastern Nebraska
* Effective this Thursday morning from 210 AM until 1000 AM CDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 3 inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Mostly elevated strong to severe thunderstorms will
continue to develop overnight, initially across
south-central/eastern Nebraska, while eventually expanding into
western/central Iowa and far northern Missouri. This will include
the Interstate 80 corridor. Large hail is expected to be the most
common hazard, but surface-based storm potential could increase
mainly toward/after sunrise including what could be an increasing
damaging wind risk.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 40 miles west of
Kearney NE to 30 miles north of Ottumwa IA. 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.
&&
AVIATION...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 550. Mean storm motion vector
25025.
...Guyer
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0 WW 310 SEVERE TSTM IA MO NE 110710Z - 111500Z AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE.. 40W EAR/KEARNEY NE/ - 30N OTM/OTTUMWA IA/ ..AVIATION COORDS.. 50NM N/S /49NE MCK - 38W IOW/ HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..60 KNOTS. MAX TOPS TO 550. MEAN STORM MOTION VECTOR 25025. LAT...LON 41599976 42409245 40669245 39849976 THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS FOR WOU0.
Watch 310 Status Report Messages:
STATUS REPORT #2 ON WW 310 VALID 111005Z - 111140Z SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 WNW CNK TO 40 SE ONL. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1084 ..WENDT..06/11/26 ATTN...WFO...DMX...OAX...EAX...GID... && STATUS REPORT FOR WS 310 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC001-003-007-009-013-015-025-027-029-039-047-049-051-053-071- 073-075-077-079-083-085-099-117-121-123-125-127-129-133-135-137- 145-153-155-157-159-161-165-169-171-173-175-179-181-185-187- 111140- IA . IOWA COUNTIES INCLUDED ARE ADAIR ADAMS APPANOOSE AUDUBON BLACK HAWK BOONE CALHOUN CARROLL CASS CLARKE CRAWFORD DALLAS DAVIS DECATUR FREMONT GREENE GRUNDY GUTHRIE HAMILTON HARDIN HARRISON JASPER LUCAS MADISON MAHASKA MARION MARSHALL MILLS MONONA MONROE MONTGOMERY PAGE POLK POTTAWATTAMIE POWESHIEK RINGGOLD SAC SHELBY STORY TAMA TAYLOR UNION WAPELLO WARREN WAYNE WEBSTER $$ MOC005-075-081-087-129-147-171-197-227-111140- MO . MISSOURI COUNTIES INCLUDED ARE ATCHISON GENTRY HARRISON HOLT MERCER NODAWAY PUTNAM SCHUYLER WORTH $$ NEC021-023-025-035-037-053-055-059-067-081-095-097-109-121-125- 127-129-131-133-141-143-147-151-153-155-159-169-177-185- 111140- NE . NEBRASKA COUNTIES INCLUDED ARE BURT BUTLER CASS CLAY COLFAX DODGE DOUGLAS FILLMORE GAGE HAMILTON JEFFERSON JOHNSON LANCASTER MERRICK NANCE NEMAHA NUCKOLLS OTOE PAWNEE PLATTE POLK RICHARDSON SALINE SARPY SAUNDERS SEWARD THAYER WASHINGTON YORK $$ THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. $$ STATUS REPORT #1 ON WW 310 VALID 110830Z - 110940Z THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1083 ..WENDT..06/11/26 ATTN...WFO...DMX...OAX...EAX...GID... && STATUS REPORT FOR WS 310 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC001-003-007-009-013-015-025-027-029-039-047-049-051-053-071- 073-075-077-079-083-085-099-117-121-123-125-127-129-133-135-137- 145-153-155-157-159-161-165-169-171-173-175-179-181-185-187- 110940- IA . IOWA COUNTIES INCLUDED ARE ADAIR ADAMS APPANOOSE AUDUBON BLACK HAWK BOONE CALHOUN CARROLL CASS CLARKE CRAWFORD DALLAS DAVIS DECATUR FREMONT GREENE GRUNDY GUTHRIE HAMILTON HARDIN HARRISON JASPER LUCAS MADISON MAHASKA MARION MARSHALL MILLS MONONA MONROE MONTGOMERY PAGE POLK POTTAWATTAMIE POWESHIEK RINGGOLD SAC SHELBY STORY TAMA TAYLOR UNION WAPELLO WARREN WAYNE WEBSTER $$ MOC005-075-081-087-129-147-171-197-227-110940- MO . MISSOURI COUNTIES INCLUDED ARE ATCHISON GENTRY HARRISON HOLT MERCER NODAWAY PUTNAM SCHUYLER WORTH $$ NEC001-019-021-023-025-035-037-047-053-055-059-061-067-073-079- 081-093-095-097-099-109-121-125-127-129-131-133-137-141-143-147- 151-153-155-159-169-177-181-185-110940- NE . NEBRASKA COUNTIES INCLUDED ARE ADAMS BUFFALO BURT BUTLER CASS CLAY COLFAX DAWSON DODGE DOUGLAS FILLMORE FRANKLIN GAGE GOSPER HALL HAMILTON HOWARD JEFFERSON JOHNSON KEARNEY LANCASTER MERRICK NANCE NEMAHA NUCKOLLS OTOE PAWNEE PHELPS PLATTE POLK RICHARDSON SALINE SARPY SAUNDERS SEWARD THAYER WASHINGTON WEBSTER YORK $$ THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. $$
Note:
Click for Complete Product Text.
Tornadoes
| Probability of 2 or more tornadoes |
Low (20%) |
| Probability of 1 or more strong (EF2-EF5) tornadoes |
Low (10%) |
Wind
| Probability of 10 or more severe wind events |
Mod (30%) |
| Probability of 1 or more wind events > 65 knots |
Low (10%) |
Hail
| Probability of 10 or more severe hail events |
High (70%) |
| Probability of 1 or more hailstones > 2 inches |
Mod (50%) |
Combined Severe Hail/Wind
| Probability of 6 or more combined severe hail/wind events |
High (90%) |
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The “Low” category contains probability values ranging from less than 2%
to 20% (EF2-EF5 tornadoes), less than 5% to 20% (all other probabilities),
“Moderate” from 30% to 60%, and “High” from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.