Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 263
NWS Storm Prediction Center Norman OK
120 PM MDT Sat Jun 6 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
The western Nebraska Panhandle
Southern and eastern Wyoming
* Effective this Saturday afternoon and evening from 120 PM until
800 PM MDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail events to 1.5 inches in diameter possible
SUMMARY...A band of severe storms, with a history of damaging winds
in Colorado, will continue moving quickly north-northeastward into
Wyoming through the afternoon. The storm environment across Wyoming
and the Nebraska Panhandle appears favorable for a continued
damaging wind threat. Isolated large hail may also accompany the
strongest storms.
The severe thunderstorm watch area is approximately along and 100
statute miles east and west of a line from 45 miles north of
Gillette WY to 25 miles south of Laramie WY. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU3).
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 260...WW 261...WW 262...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
21045.
...Thompson
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 263
NWS Storm Prediction Center Norman OK
120 PM MDT Sat Jun 6 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
The western Nebraska Panhandle
Southern and eastern Wyoming
* Effective this Saturday afternoon and evening from 120 PM until
800 PM MDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail events to 1.5 inches in diameter possible
SUMMARY...A band of severe storms, with a history of damaging winds
in Colorado, will continue moving quickly north-northeastward into
Wyoming through the afternoon. The storm environment across Wyoming
and the Nebraska Panhandle appears favorable for a continued
damaging wind threat. Isolated large hail may also accompany the
strongest storms.
The severe thunderstorm watch area is approximately along and 100
statute miles east and west of a line from 45 miles north of
Gillette WY to 25 miles south of Laramie WY. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU3).
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 260...WW 261...WW 262...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
21045.
...Thompson
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW3
WW 263 SEVERE TSTM NE WY 061920Z - 070200Z
AXIS..100 STATUTE MILES EAST AND WEST OF LINE..
45N GCC/GILLETTE WY/ - 25S LAR/LARAMIE WY/
..AVIATION COORDS.. 85NM E/W /66E SHR - 22S LAR/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 21045.
LAT...LON 44980348 40930375 40930759 44980758
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.
Watch 263 Status Report Messages:
STATUS REPORT #2 ON WW 263
VALID 062230Z - 062340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 S LAR TO
25 N LAR TO 35 WSW DGW TO 10 N CPR TO 40 SSE WRL.
..SPC..06/06/20
ATTN...WFO...CYS...UNR...RIW...
&&
STATUS REPORT FOR WS 263
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC007-013-033-045-105-123-157-165-062340-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BANNER BOX BUTTE CHEYENNE
DAWES KIMBALL MORRILL
SCOTTS BLUFF SIOUX
$$
WYC001-005-009-011-015-019-021-025-027-031-037-045-062340-
WY
. WYOMING COUNTIES INCLUDED ARE
ALBANY CAMPBELL CONVERSE
CROOK GOSHEN JOHNSON
LARAMIE NATRONA NIOBRARA
PLATTE SWEETWATER WESTON
$$
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.
$$
STATUS REPORT #1 ON WW 263
VALID 062045Z - 062140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..LYONS..06/06/20
ATTN...WFO...CYS...UNR...RIW...
&&
STATUS REPORT FOR WS 263
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC007-013-033-045-105-123-157-165-062140-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BANNER BOX BUTTE CHEYENNE
DAWES KIMBALL MORRILL
SCOTTS BLUFF SIOUX
$$
WYC001-005-007-009-011-015-019-021-025-027-031-037-045-062140-
WY
. WYOMING COUNTIES INCLUDED ARE
ALBANY CAMPBELL CARBON
CONVERSE CROOK GOSHEN
JOHNSON LARAMIE NATRONA
NIOBRARA PLATTE SWEETWATER
WESTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (60%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (60%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (20%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (90%)
|
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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