Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 112
NWS Storm Prediction Center Norman OK
1145 AM MDT Tue Apr 27 2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Colorado
* Effective this Tuesday morning and evening from 1145 AM until
700 PM MDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Thunderstorms will increase in coverage and intensity
through the afternoon, with the strongest cells capable of large
hail. An isolated tornado or two is also possible.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 65 miles northwest of
Limon CO to 45 miles north of Burlington CO. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).
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.
&&
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
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 112
NWS Storm Prediction Center Norman OK
1145 AM MDT Tue Apr 27 2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Colorado
* Effective this Tuesday morning and evening from 1145 AM until
700 PM MDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Thunderstorms will increase in coverage and intensity
through the afternoon, with the strongest cells capable of large
hail. An isolated tornado or two is also possible.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 65 miles northwest of
Limon CO to 45 miles north of Burlington CO. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).
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.
&&
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.
SAW2
WW 112 SEVERE TSTM CO 271745Z - 280100Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
65NW LIC/LIMON CO/ - 45N ITR/BURLINGTON CO/
..AVIATION COORDS.. 50NM N/S /9NE DEN - 41NW GLD/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24030.
LAT...LON 40800454 40750228 39020228 39060454
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU2.
Watch 112 Status Report Messages:
STATUS REPORT #7 ON WW 112
VALID 280025Z - 280140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NNW LAA
TO 25 N SNY.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 440
..MOORE..04/28/21
ATTN...WFO...BOU...GLD...
&&
STATUS REPORT FOR WS 112
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-063-095-115-125-280140-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE KIT CARSON PHILLIPS
SEDGWICK YUMA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #6 ON WW 112
VALID 272335Z - 280040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 N LAA TO
20 E LIC TO 35 WSW SNY.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 438
..MOORE..04/27/21
ATTN...WFO...BOU...GLD...
&&
STATUS REPORT FOR WS 112
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-063-075-095-115-121-125-280040-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE KIT CARSON LOGAN
PHILLIPS SEDGWICK WASHINGTON
YUMA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #5 ON WW 112
VALID 272235Z - 272340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNW LHX
TO 15 WNW LIC TO 40 NE DEN TO 30 SW CYS.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 438
..MOORE..04/27/21
ATTN...WFO...BOU...GLD...
&&
STATUS REPORT FOR WS 112
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-063-073-075-087-095-115-121-123-125-272340-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE KIT CARSON LINCOLN
LOGAN MORGAN PHILLIPS
SEDGWICK WASHINGTON WELD
YUMA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 112
VALID 272150Z - 272240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ENE PUB
TO 15 ENE COS TO 20 S DEN TO 15 N DEN TO 20 NNE FCL.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 437
..MOORE..04/27/21
ATTN...WFO...BOU...GLD...
&&
STATUS REPORT FOR WS 112
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-017-063-073-075-087-095-115-121-123-125-272240-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE CHEYENNE
KIT CARSON LINCOLN LOGAN
MORGAN PHILLIPS SEDGWICK
WASHINGTON WELD YUMA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 112
VALID 272050Z - 272140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 ENE COS
TO 35 NW LIC TO 20 ESE FCL.
..SQUITIERI..04/27/21
ATTN...WFO...BOU...GLD...
&&
STATUS REPORT FOR WS 112
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-017-039-063-073-075-087-095-115-121-123-125-272140-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE CHEYENNE
ELBERT KIT CARSON LINCOLN
LOGAN MORGAN PHILLIPS
SEDGWICK WASHINGTON WELD
YUMA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 112
VALID 272000Z - 272140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SQUITIERI..04/27/21
ATTN...WFO...BOU...GLD...
&&
STATUS REPORT FOR WS 112
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-017-039-063-073-075-087-095-115-121-123-125-272140-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE CHEYENNE
ELBERT KIT CARSON LINCOLN
LOGAN MORGAN PHILLIPS
SEDGWICK WASHINGTON WELD
YUMA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 112
VALID 271850Z - 271940Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SQUITIERI..04/27/21
ATTN...WFO...BOU...GLD...
&&
STATUS REPORT FOR WS 112
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-017-035-039-063-073-075-087-095-115-121-123-125-
271940-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE CHEYENNE
DOUGLAS ELBERT KIT CARSON
LINCOLN LOGAN MORGAN
PHILLIPS SEDGWICK WASHINGTON
WELD YUMA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Low (20%)
|
Probability of 1 or more wind events > 65 knots
|
Low (10%)
|
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 (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 
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