Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 109
NWS Storm Prediction Center Norman OK
420 PM CDT Sat May 19 2018
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Kansas
West Central Missouri
* Effective this Saturday afternoon and evening from 420 PM until
1100 PM CDT.
* Primary threats include...
Widespread large hail and isolated very large hail events to 2
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY...Scattered intense thunderstorms will develop and spread
east-northeastward across the watch area this afternoon and evening.
Large hail and damaging winds are expected with the strongest
cells.
The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 20 miles north
northwest of Emporia KS to 45 miles southeast of Chillicothe MO. 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 107...WW 108...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
24030.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 109 SEVERE TSTM KS MO 192120Z - 200400Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
20NNW EMP/EMPORIA KS/ - 45SE CDJ/CHILLICOTHE MO/
..AVIATION COORDS.. 45NM N/S /64ESE SLN - 48NW COU/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24030.
LAT...LON 39319631 40089298 38639298 37869631
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 109 Status Report Messages:
STATUS REPORT #2 ON WW 109
VALID 192315Z - 200040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..COOK..05/19/18
ATTN...WFO...TOP...EAX...
&&
STATUS REPORT FOR WS 109
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC003-005-031-045-059-061-085-087-091-103-107-111-121-127-139-
177-197-209-200040-
KS
. KANSAS COUNTIES INCLUDED ARE
ANDERSON ATCHISON COFFEY
DOUGLAS FRANKLIN GEARY
JACKSON JEFFERSON JOHNSON
LEAVENWORTH LINN LYON
MIAMI MORRIS OSAGE
SHAWNEE WABAUNSEE WYANDOTTE
$$
MOC013-021-025-033-037-041-047-049-083-095-101-107-115-117-159-
165-177-195-200040-
MO
. MISSOURI COUNTIES INCLUDED ARE
BATES BUCHANAN CALDWELL
CARROLL CASS CHARITON
CLAY CLINTON HENRY
JACKSON JOHNSON LAFAYETTE
LINN LIVINGSTON PETTIS
PLATTE RAY SALINE
$$
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.
$$
STATUS REPORT #1 ON WW 109
VALID 192230Z - 192340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..COOK..05/19/18
ATTN...WFO...TOP...EAX...
&&
STATUS REPORT FOR WS 109
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC003-005-031-045-059-061-085-087-091-103-107-111-121-127-139-
177-197-209-192340-
KS
. KANSAS COUNTIES INCLUDED ARE
ANDERSON ATCHISON COFFEY
DOUGLAS FRANKLIN GEARY
JACKSON JEFFERSON JOHNSON
LEAVENWORTH LINN LYON
MIAMI MORRIS OSAGE
SHAWNEE WABAUNSEE WYANDOTTE
$$
MOC013-021-025-033-037-041-047-049-083-095-101-107-115-117-159-
165-177-195-192340-
MO
. MISSOURI COUNTIES INCLUDED ARE
BATES BUCHANAN CALDWELL
CARROLL CASS CHARITON
CLAY CLINTON HENRY
JACKSON JOHNSON LAFAYETTE
LINN LIVINGSTON PETTIS
PLATTE RAY SALINE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (10%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
High (80%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (60%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (>95%)
|
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% (F2-F5 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.
weather.gov 
@NWSSPC
