WW 227 TORNADO KS MO 182310Z - 190600Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 227
NWS Storm Prediction Center Norman OK
610 PM CDT Mon May 18 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
East-Central and Southeast Kansas
West-Central Missouri
* Effective this Monday night and Tuesday morning from 610 PM
until 100 AM CDT.
* Primary threats include...
A few tornadoes and a couple intense tornadoes possible
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
SUMMARY...A line of supercell thunderstorms is currently ongoing
along and ahead of a cold front that extends from northeast into
central KS. This line of storms is expected to continue
eastward/southeastward this evening, into an environment that will
remain supportive of a continued risk for all severe hazards. Any
discrete storms ahead of the line could pose a risk for a strong
tornado, with line-embedded tornadoes possible as well. There is
some potential for the development of several embedded bowing
clusters, which could result in corridors of 65 to 75 mph wind
gusts.
The tornado watch area is approximately along and 60 statute miles
north and south of a line from 5 miles west of Wichita KS to 25
miles north northeast of Knob Noster MO. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU7).
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 222...WW 224...WW
225...WW 226...
AVIATION...Tornadoes and 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 24035.
...Mosier
WW 226 TORNADO OK TX 182135Z - 190500Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 226
NWS Storm Prediction Center Norman OK
435 PM CDT Mon May 18 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Western Oklahoma
Far Northwest Texas
* Effective this Monday afternoon from 435 PM until Midnight CDT.
* Primary threats include...
A few tornadoes and a couple intense tornadoes possible
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
SUMMARY...Thunderstorm development is ongoing along the dryline in
western OK. The very unstable and moderately sheared environment
could support a few supercells if the warm and dry low to mid levels
can be overcome. All hazards including very large hail and tornadoes
are possible with any mature storms. Low-level shear will strengthen
this evening as the low-level jet increases, and any storm that
persists into the evening could encounter an environment supportive
of strong tornadoes.
The tornado watch area is approximately along and 50 statute miles
east and west of a line from 20 miles northwest of Alva OK to 40
miles southwest of Wichita Falls TX. 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 220...WW 221...WW
222...WW 223...WW 224...WW 225...
AVIATION...Tornadoes and 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 24020.
...Mosier
WW 225 TORNADO IA KS MO 182050Z - 190300Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 225
NWS Storm Prediction Center Norman OK
350 PM CDT Mon May 18 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Southwest Iowa
Northeast Kansas
Northwest Missouri
* Effective this Monday afternoon and evening from 350 PM until
1000 PM CDT.
* Primary threats include...
A few tornadoes and a couple intense tornadoes likely
Widespread damaging winds and isolated significant gusts to 80
mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter likely
SUMMARY...Intense supercell thunderstorms over northeast Kansas and
southeast Nebraska will continue eastward this evening into the
watch area. Large hail, damaging winds, and tornadoes will all be
possible.
The tornado watch area is approximately along and 55 statute miles
north and south of a line from 15 miles north northwest of Falls
City NE to 10 miles north northeast of Lamoni IA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU5).
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 220...WW 221...WW
222...WW 223...WW 224...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 25035.
...Hart
WW 224 TORNADO KS 182000Z - 190300Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 224
NWS Storm Prediction Center Norman OK
300 PM CDT Mon May 18 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
South Central Kansas
* Effective this Monday afternoon and evening from 300 PM until
1000 PM CDT.
* Primary threats include...
A few tornadoes and a couple intense tornadoes likely
Scattered large hail and isolated very large hail events to 3
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
SUMMARY...Rapid thunderstorm development is expected this afternoon
across the watch area. Very large hail is the main concern, but
parameters also support the risk of a few tornadoes.
The tornado watch area is approximately along and 35 statute miles
north and south of a line from 25 miles south southwest of Dodge
City KS to 75 miles east of Dodge City KS. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU4).
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 220...WW 221...WW
222...WW 223...
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 550. Mean
storm motion vector 26030.
...Hart
WW 0227 Status Updates
STATUS REPORT ON WW 227
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..JEWELL..05/18/26
ATTN...WFO...TOP...ICT...EAX...
STATUS REPORT FOR WT 227
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC003-015-017-019-031-035-045-049-059-073-077-079-087-091-103-
107-111-121-125-139-173-177-191-197-205-207-209-190040-
KS
. KANSAS COUNTIES INCLUDED ARE
ANDERSON BUTLER CHASE
CHAUTAUQUA COFFEY COWLEY
DOUGLAS ELK FRANKLIN
GREENWOOD HARPER HARVEY
JEFFERSON JOHNSON LEAVENWORTH
LINN LYON MIAMI
MONTGOMERY OSAGE SEDGWICK
SHAWNEE SUMNER WABAUNSEE
WILSON WOODSON WYANDOTTE
MOC013-025-033-037-047-049-083-095-101-107-117-159-165-177-195-
190040-
MO
. MISSOURI COUNTIES INCLUDED ARE
BATES CALDWELL CARROLL
CASS CLAY CLINTON
HENRY JACKSON JOHNSON
WW 0226 Status Updates
STATUS REPORT ON WW 226
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..JEWELL..05/18/26
ATTN...WFO...OUN...
STATUS REPORT FOR WT 226
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-009-011-015-031-033-039-043-045-055-057-059-065-075-093-
129-141-149-151-153-190040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BECKHAM BLAINE
CADDO COMANCHE COTTON
CUSTER DEWEY ELLIS
GREER HARMON HARPER
JACKSON KIOWA MAJOR
ROGER MILLS TILLMAN WASHITA
WOODS WOODWARD
TXC009-023-155-197-275-485-487-190040-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR FOARD
HARDEMAN KNOX WICHITA
WILBARGER
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
WW 0225 Status Updates
STATUS REPORT ON WW 225
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 W SDA TO
45 ENE SDA TO 40 WNW DSM.
..JEWELL..05/18/26
ATTN...WFO...DMX...OAX...EAX...
STATUS REPORT FOR WT 225
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-039-053-071-117-135-145-159-173-175-185-190040-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
CLARKE DECATUR FREMONT
LUCAS MONROE PAGE
RINGGOLD TAYLOR UNION
WAYNE
KSC005-043-190040-
KS
. KANSAS COUNTIES INCLUDED ARE
ATCHISON DONIPHAN
MOC003-005-021-061-063-075-081-087-147-227-190040-
MO
. MISSOURI COUNTIES INCLUDED ARE
WW 0224 Status Updates
STATUS REPORT ON WW 224
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 SSW DDC
TO 25 SE DDC TO 45 NNW P28 TO 20 W HUT.
..JEWELL..05/18/26
ATTN...WFO...DDC...
STATUS REPORT FOR WT 224
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC007-025-033-097-151-185-190040-
KS
. KANSAS COUNTIES INCLUDED ARE
BARBER CLARK COMANCHE
KIOWA PRATT STAFFORD
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.
WW 0223 Status Updates
STATUS REPORT ON WW 223
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 S FDY TO
25 SE DTW.
..LYONS..05/18/26
ATTN...WFO...CLE...
STATUS REPORT FOR WS 223
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OHC123-143-147-182340-
OH
. OHIO COUNTIES INCLUDED ARE
OTTAWA SANDUSKY SENECA
LEZ163-182340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
RENO BEACH TO THE ISLANDS OH BEYOND 5NM OFF SHORELINE TO
US-CANADIAN BORDER
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.
WW 0222 Status Updates
STATUS REPORT ON WW 222
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 WNW HUT TO
15 SE SLN TO 20 WSW MHK TO 35 NNE MHK TO 25 W FNB TO 30 W SDA.
..JEWELL..05/18/26
ATTN...WFO...ICT...TOP...GID...OAX...
STATUS REPORT FOR WT 222
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC013-041-061-085-095-113-115-127-131-149-155-161-190040-
KS
. KANSAS COUNTIES INCLUDED ARE
BROWN DICKINSON GEARY
JACKSON KINGMAN MCPHERSON
MARION MORRIS NEMAHA
POTTAWATOMIE RENO RILEY
NEC127-147-190040-
NE
. NEBRASKA COUNTIES INCLUDED ARE
NEMAHA RICHARDSON
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.
WW 0221 Status Updates
STATUS REPORT ON WW 221
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 E TOL TO
15 NNW MTC TO 25 NE BAX TO 5 E OSC TO 35 N APN.
..LYONS..05/18/26
ATTN...WFO...APX...GRR...DTX...
STATUS REPORT FOR WS 221
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MIC069-099-147-151-182340-
MI
. MICHIGAN COUNTIES INCLUDED ARE
IOSCO MACOMB ST. CLAIR
SANILAC
LCZ422-460-LHZ349-442-443-462-463-464-182340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
ST. CLAIR RIVER
LAKE ST. CLAIR OPEN LAKE (U.S. PORTION)
STURGEON PT TO ALABASTER MI
HARBOR BEACH TO PORT SANILAC MI
PORT SANILAC TO PORT HURON MI
No Mesoscale Discussions are in effect as of Tue May 19 01:35:06 UTC 2026.SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0805 PM CDT Mon May 18 2026
Valid 190100Z - 191200Z
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
FAR NORTHERN OKLAHOMA...SOUTHERN AND EASTERN KANSAS INTO NORTHWEST
MISSOURI...FAR SOUTHEAST NEBRASKA AND SOUTH-CENTRAL IOWA...
...SUMMARY...
Numerous severe thunderstorms are expected this evening from the
southern and central Plains into the mid Missouri Valley. Supercells
and bowing line segments capable of producing severe wind gusts,
tornadoes and large hail remain likely from eastern and southern
Kansas into far southeast Nebraska, Iowa and northwest Missouri.
...Southern and Central Plains/Mid Missouri Valley...
At the synoptic level, multiple shortwave troughs are ejecting
northeastward across the central U.S. early this evening. A 50 to 70
knot mid-level jet is translating northeastward across the central
Plains, with a 40 to 50 knot low-level jet in place from northern
Oklahoma into eastern Kansas and western Missouri. A squall-line is
ongoing along the western edge of the low-level jet, and this line
will move east-southeastward across the remainder of eastern Kansas
into western Missouri this evening into tonight. Ahead of the line,
strong instability is analyzed by the RAP with MLCAPE in the 3000 to
4000 J/kg range. This, combined with strong large-scale ascent to
the southeast of the mid-level jet, and moderate deep-layer shear
evident on regional WSR-88D VWPs, will continue to support a severe
threat with this line for the remainder of the evening. Severe wind
gusts with be likely along the leading edge of the line. Large hail
and tornadoes will also be possible with rotating elements embedded
in the line.
Further north-northeast into northeast Kansas, northwest Missouri
and south-central Iowa, several semi-discrete supercells are
ongoing. The Kansas City WSR-88D has 0-3 km storm-relative helicity
near 475 ms/s2, which appears representative of the environment
ahead of these storms. For this reason, a potential will continue
for strong tornadoes over the next few hours. These supercells will
also be capable of producing large hail and severe wind gusts.
The squall-line will gradually move east-southeastward into the
lower Missouri Valley and Ozarks from late this evening into the
overnight period. The severe threat will become less widespread as
relatively weaker instability is encountered later tonight.
...Southern Plains...
At the surface, a 997 mb low is located over far northwestern
Oklahoma, with a dryline extending southward across far western
Oklahoma into west Texas. To the east of the dryline, the RAP has
MLCAPE in the 3000 to 4000 J/kg range. Near the axis of the
strongest instability, a few storms are ongoing across southwest
Oklahoma, but weakening has recently occurred. Redevelopment will be
possible later this evening. The strong instability combined with
moderate deep-layer shear and steep low to mid-level lapse rates
would support a threat for large hail and severe wind gusts, if
cells can re-intensify. An isolated tornado threat will also be
possible if a supercell could develop. Thunderstorms are expected to
increase in coverage over much of Oklahoma during the overnight
period, as a cold front moves southward. However, the severe threat
should become more isolated tonight as instability gradually
decreases across the region.
..Broyles.. 05/19/2026
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0417 PM CDT Mon May 18 2026
Valid 201200Z - 261200Z
A progressive mid-level synoptic pattern will to transition to
quasi-zonal flow on Day 3/Wednesday. Simultaneously, a weak
shortwave trough will drift southward over the Intermountain West
and across the northern U.S. through late this week. A combination
of below normal temperatures and fairly widespread precipitation
will overspread much of the central and eastern portions of the
CONUS as synoptic flow stabilizes into the weekend. This could
briefly dampen the fire weather threat across much of the country
and support additional green up in some locations, particularly
across the northern CONUS, that have thus far been struggling to
grow fire-slowing vegetation. However, much longer duration
precipitation and cool conditions would be needed to appreciably
improve heavy dead fuel moisture and resultant ERCs.
On Day 3/Wednesday, lingering moderate southwesterly flow aloft will
encourage breezy conditions amid a dry airmass across
central-western NM and eastern AZ. 40% Critical probabilities remain
where southwest winds sustained at 10-20 mph will align with minimum
RH of 10-20% atop dry fuels. On Day 4/Thursday, persisting low RH
across the Southwest with much lighter winds will preclude the
introduction of probabilities. Beyond Day 5/Friday, guidance begins
to vary in the timing/extent of embedded shortwaves and associated
chances of precipitation. Nonetheless, the overall upper pattern
suggests dampened fire weather conditions on a broader scale through
the forecast period, in the exception of localized terrain-driven
breezy conditions across parts of the West.
..Elizalde-Garcia.. 05/18/2026
...Please see www.spc.noaa.gov/fire for graphic product...
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