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 390
NWS Storm Prediction Center Norman OK
800 PM CDT Mon Jul 20 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest Kansas
Far southwest Nebraska
* Effective this Monday night and Tuesday morning from 800 PM
until 100 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...Long-lived cluster of strong to severe storms in southwest
Nebraska should spread south-southeast into northwest Kansas through
late evening, offering a risk for severe wind and hail before
weakening.
The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 40 miles north of
Goodland KS to 35 miles northeast of Hill City KS. 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 389...
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 550. Mean storm motion vector
33025.
...Grams
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 390
NWS Storm Prediction Center Norman OK
800 PM CDT Mon Jul 20 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest Kansas
Far southwest Nebraska
* Effective this Monday night and Tuesday morning from 800 PM
until 100 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...Long-lived cluster of strong to severe storms in southwest
Nebraska should spread south-southeast into northwest Kansas through
late evening, offering a risk for severe wind and hail before
weakening.
The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 40 miles north of
Goodland KS to 35 miles northeast of Hill City KS. 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 389...
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 550. Mean storm motion vector
33025.
...Grams
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 390 SEVERE TSTM KS NE 210100Z - 210600Z
AXIS..45 STATUTE MILES NORTH AND SOUTH OF LINE..
40N GLD/GOODLAND KS/ - 35NE HLC/HILL CITY KS/
..AVIATION COORDS.. 40NM N/S /33N GLD - 49NE HLC/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 33025.
LAT...LON 40590170 40399936 39099936 39290170
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 390 Status Report Messages:
STATUS REPORT #5 ON WW 390
VALID 210535Z - 210600Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 WSW HLC
TO 55 N RSL.
WW 390 WILL BE ALLOWED TO EXPIRE AT 210600Z.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1297
..DEAN..07/21/20
ATTN...WFO...GLD...GID...
&&
STATUS REPORT FOR WS 390
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC065-163-210600-
KS
. KANSAS COUNTIES INCLUDED ARE
GRAHAM ROOKS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 390
VALID 210435Z - 210540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 SSE GLD TO
40 WNW HLC TO 45 S EAR.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1297
..GUYER..07/21/20
ATTN...WFO...GLD...GID...
&&
STATUS REPORT FOR WS 390
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC065-137-147-163-179-193-210540-
KS
. KANSAS COUNTIES INCLUDED ARE
GRAHAM NORTON PHILLIPS
ROOKS SHERIDAN THOMAS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 390
VALID 210335Z - 210440Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1296
..GUYER..07/21/20
ATTN...WFO...GLD...GID...
&&
STATUS REPORT FOR WS 390
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC023-039-065-137-147-153-163-179-193-210440-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR GRAHAM
NORTON PHILLIPS RAWLINS
ROOKS SHERIDAN THOMAS
$$
NEC057-065-073-083-087-145-210440-
NE
. NEBRASKA COUNTIES INCLUDED ARE
DUNDY FURNAS GOSPER
HARLAN HITCHCOCK RED WILLOW
$$
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.
$$
STATUS REPORT #2 ON WW 390
VALID 210225Z - 210340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1296
..COOK..07/21/20
ATTN...WFO...GLD...GID...
&&
STATUS REPORT FOR WS 390
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC023-039-065-137-147-153-163-179-193-210340-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR GRAHAM
NORTON PHILLIPS RAWLINS
ROOKS SHERIDAN THOMAS
$$
NEC057-065-073-083-087-145-210340-
NE
. NEBRASKA COUNTIES INCLUDED ARE
DUNDY FURNAS GOSPER
HARLAN HITCHCOCK 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 390
VALID 210130Z - 210240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..COOK..07/21/20
ATTN...WFO...GLD...GID...
&&
STATUS REPORT FOR WS 390
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC023-039-065-137-147-153-163-179-193-210240-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR GRAHAM
NORTON PHILLIPS RAWLINS
ROOKS SHERIDAN THOMAS
$$
NEC057-065-073-083-087-145-210240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
DUNDY FURNAS GOSPER
HARLAN HITCHCOCK RED WILLOW
$$
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.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (10%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (20%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (20%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (60%)
|
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.
weather.gov 
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