Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 254
NWS Storm Prediction Center Norman OK
740 PM CDT Thu Jun 4 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
north central Kansas
central and eastern Nebraska
southeastern South Dakota
* Effective this Thursday night and Friday morning from 740 PM
until 200 AM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Isolated to scattered thunderstorms are forecast to move
east-southeastward across central and eastern Nebraska and adjacent
southeastern South Dakota this evening, accompanied by risk for
locally damaging winds, and large hail.
The severe thunderstorm watch area is approximately along and 65
statute miles east and west of a line from 20 miles north of
Mitchell SD to 45 miles south southeast of Hastings NE. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU4).
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 250...WW 251...WW
252...WW 253...
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 550. Mean storm motion vector
24040.
...Goss
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 254
NWS Storm Prediction Center Norman OK
740 PM CDT Thu Jun 4 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
north central Kansas
central and eastern Nebraska
southeastern South Dakota
* Effective this Thursday night and Friday morning from 740 PM
until 200 AM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Isolated to scattered thunderstorms are forecast to move
east-southeastward across central and eastern Nebraska and adjacent
southeastern South Dakota this evening, accompanied by risk for
locally damaging winds, and large hail.
The severe thunderstorm watch area is approximately along and 65
statute miles east and west of a line from 20 miles north of
Mitchell SD to 45 miles south southeast of Hastings NE. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU4).
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 250...WW 251...WW
252...WW 253...
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 550. Mean storm motion vector
24040.
...Goss
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW4
WW 254 SEVERE TSTM KS NE SD 050040Z - 050700Z
AXIS..65 STATUTE MILES EAST AND WEST OF LINE..
20N MHE/MITCHELL SD/ - 45SSE HSI/HASTINGS NE/
..AVIATION COORDS.. 55NM E/W /59WNW FSD - 68NNW SLN/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 24040.
LAT...LON 44059672 39999688 39999933 44059934
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.
Watch 254 Status Report Messages:
STATUS REPORT #1 ON WW 254
VALID 050300Z - 050440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 SSW HSI
TO 20 S HSI TO 10 NNW HSI TO 15 N EAR TO 25 NW EAR.
..SPC..06/05/20
ATTN...WFO...GID...OAX...LBF...FSD...
&&
STATUS REPORT FOR WS 254
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC089-123-141-147-163-183-050440-
KS
. KANSAS COUNTIES INCLUDED ARE
JEWELL MITCHELL OSBORNE
PHILLIPS ROOKS SMITH
$$
NEC001-003-009-011-015-017-023-027-035-037-039-041-043-051-053-
059-067-071-077-079-081-089-093-095-103-107-109-115-119-121-125-
129-139-141-143-149-151-155-159-163-167-169-173-175-179-181-183-
185-050440-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ADAMS ANTELOPE BLAINE
BOONE BOYD BROWN
BUTLER CEDAR CLAY
COLFAX CUMING CUSTER
DAKOTA DIXON DODGE
FILLMORE GAGE GARFIELD
GREELEY HALL HAMILTON
HOLT HOWARD JEFFERSON
KEYA PAHA KNOX LANCASTER
LOUP MADISON MERRICK
NANCE NUCKOLLS PIERCE
PLATTE POLK ROCK
SALINE SAUNDERS SEWARD
SHERMAN STANTON THAYER
THURSTON VALLEY WAYNE
WEBSTER WHEELER YORK
$$
SDC003-009-015-023-027-035-043-053-061-067-073-079-083-087-097-
099-111-125-127-135-050440-
SD
. SOUTH DAKOTA COUNTIES INCLUDED ARE
AURORA BON HOMME BRULE
CHARLES MIX CLAY DAVISON
DOUGLAS GREGORY HANSON
HUTCHINSON JERAULD LAKE
LINCOLN MCCOOK MINER
MINNEHAHA SANBORN TURNER
UNION YANKTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (50%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (40%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (80%)
|
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 
@NWSSPC
