Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 199
NWS Storm Prediction Center Norman OK
810 PM CDT Sun May 23 2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest Kansas
Central Nebraska
South Central South Dakota
* Effective this Sunday night and Monday morning from 810 PM
until 100 AM CDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY...A line of intense thunderstorms will track northeastward
across the watch area through the evening hours, posing a risk of
locally damaging wind gusts and hail.
The severe thunderstorm watch area is approximately along and 45
statute miles east and west of a line from 60 miles north northeast
of Valentine NE to 75 miles south of Goodland KS. 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 196...WW 197...WW 198...
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
24035.
...Hart
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 199
NWS Storm Prediction Center Norman OK
810 PM CDT Sun May 23 2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest Kansas
Central Nebraska
South Central South Dakota
* Effective this Sunday night and Monday morning from 810 PM
until 100 AM CDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY...A line of intense thunderstorms will track northeastward
across the watch area through the evening hours, posing a risk of
locally damaging wind gusts and hail.
The severe thunderstorm watch area is approximately along and 45
statute miles east and west of a line from 60 miles north northeast
of Valentine NE to 75 miles south of Goodland KS. 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 196...WW 197...WW 198...
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
24035.
...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 199 SEVERE TSTM KS NE SD 240110Z - 240600Z
AXIS..45 STATUTE MILES EAST AND WEST OF LINE..
60NNE VTN/VALENTINE NE/ - 75S GLD/GOODLAND KS/
..AVIATION COORDS.. 40NM E/W /45S PIR - 47E LAA/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24035.
LAT...LON 43659919 38270087 38270253 43650099
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 199 Status Report Messages:
STATUS REPORT #2 ON WW 199
VALID 240435Z - 240540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NNE ITR
TO 15 NW MCK TO 40 SE LBF.
..SPC..05/24/21
ATTN...WFO...GLD...LBF...GID...UNR...
&&
STATUS REPORT FOR WS 199
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC023-039-063-065-071-109-137-153-179-181-193-199-203-240540-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR GOVE
GRAHAM GREELEY LOGAN
NORTON RAWLINS SHERIDAN
SHERMAN THOMAS WALLACE
WICHITA
$$
NEC041-047-063-065-073-087-115-145-240540-
NE
. NEBRASKA COUNTIES INCLUDED ARE
CUSTER DAWSON FRONTIER
FURNAS GOSPER HITCHCOCK
LOUP RED WILLOW
$$
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.
$$
STATUS REPORT #1 ON WW 199
VALID 240225Z - 240340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..WENDT..05/24/21
ATTN...WFO...GLD...LBF...GID...UNR...
&&
STATUS REPORT FOR WS 199
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC023-039-063-065-071-109-137-153-179-181-193-199-203-240340-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR GOVE
GRAHAM GREELEY LOGAN
NORTON RAWLINS SHERIDAN
SHERMAN THOMAS WALLACE
WICHITA
$$
NEC009-017-029-031-041-047-057-063-065-073-085-087-091-103-111-
113-115-117-135-145-149-171-240340-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BLAINE BROWN CHASE
CHERRY CUSTER DAWSON
DUNDY FRONTIER FURNAS
GOSPER HAYES HITCHCOCK
HOOKER KEYA PAHA LINCOLN
LOGAN LOUP MCPHERSON
PERKINS RED WILLOW ROCK
THOMAS
$$
SDC095-121-123-240340-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
MELLETTE TODD TRIPP
$$
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 (5%)
|
Wind
Probability of 10 or more severe wind events
|
High (70%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (60%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (30%)
|
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% (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.