SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 292230
SPSBOU
Special Weather Statement
National Weather Service Denver CO
430 PM MDT Sun Aug 29 2021
COZ034-037-292300-
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet CO-Central and Southeast Park County CO-
430 PM MDT Sun Aug 29 2021
...A strong thunderstorm will impact portions of northeastern Park
County through 500 PM MDT...
At 430 PM MDT, Doppler radar was tracking a strong thunderstorm 4
miles southeast of Jefferson, or 50 miles southwest of Denver, moving
east at 10 mph.
HAZARD...Winds in excess of 40 mph and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Jefferson, Tarryall Reservoir and Kenosha Pass.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3928 10586 3938 10589 3943 10570 3926 10538
3923 10542 3924 10543 3922 10543 3915 10553
TIME...MOT...LOC 2230Z 274DEG 7KT 3933 10575
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH
$$
DANIELSON
4 years, 6 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 270355
SPSBOU
Special Weather Statement
National Weather Service Denver CO
955 PM MDT Thu Aug 26 2021
COZ032>036-038>040-043-270445-
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet CO-Central and South Weld County CO-
Grand and Summit Counties Below 9000 Feet CO-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
CO-Larimer and Boulder Counties Between 6000 and 9000 Feet CO-
North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County CO-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet CO-
Larimer County Below 6000 Feet/Northwest Weld County CO-
South and East Jackson/Larimer/North and Northeast Grand/Northwest
Boulder Counties Above 9000 Feet CO-
955 PM MDT Thu Aug 26 2021
...Strong thunderstorms will impact portions of western Weld,
Broomfield, Larimer, northern Gilpin, northeastern Grand, northern
Jefferson, northwestern Adams and Boulder Counties through 1045 PM
MDT...
At 954 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 5 miles west of Cherokee Park to 3 miles
northwest of Pinewood Springs to near Rollinsville, or along a line
extending from 27 miles south of Laramie to 23 miles southwest of
Fort Collins to 29 miles northwest of Denver. Movement was east at
40 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Fort Collins, southwestern Greeley, Thornton, northern Arvada,
Westminster, Boulder, Longmont, Loveland, Broomfield, northwestern
Commerce City, Northglenn, Brighton, Lafayette, Windsor, Louisville,
Erie, Superior, Federal Heights, Firestone and Johnstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare for sudden gusty winds. Secure loose objects and move to a
safe shelter inside a building or vehicle.
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4099 10477 3984 10482 3987 10588 4099 10594
TIME...MOT...LOC 0354Z 281DEG 38KT 4091 10560 4032 10539 3990 10546
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
ENTREKIN
4 years, 6 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 270300
SPSBOU
Special Weather Statement
National Weather Service Denver CO
900 PM MDT Thu Aug 26 2021
COZ030>035-270330-
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet CO-Jackson County Below 9000 Feet CO-
Grand and Summit Counties Below 9000 Feet CO-
Larimer and Boulder Counties Between 6000 and 9000 Feet CO-
West Jackson and West Grand Counties Above 9000 Feet CO-
South and East Jackson/Larimer/North and Northeast Grand/Northwest
Boulder Counties Above 9000 Feet CO-
900 PM MDT Thu Aug 26 2021
...Strong thunderstorms will impact portions of Jackson, northwestern
Summit, northwestern Larimer, Grand and northwestern Clear Creek
Counties through 930 PM MDT...
At 859 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles northeast of Mt Zirkel to 10 miles
northwest of Silverthorne, or along a line extending from 57 miles
northeast of Craig to 60 miles east of Glenwood Springs. Movement was
east at 40 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Granby, Kremmling, Fraser, Hot Sulphur Springs, Walden, Lake John,
Parshall, Rand, Brownlee, Berthoud Falls, Cowdrey, Hot Sulphur
Spring, Glendevey, Williams Fork Reservoir, Pearl, Green Mountain
Reservoir, Coalmont, Tabernash, Elkdale and Gould.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare for sudden gusty winds. Secure loose objects and move to a
safe shelter inside a building or vehicle.
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4098 10684 4099 10597 3975 10579 3973 10628
4066 10669 4069 10667 4076 10667 4079 10664
4082 10664 4083 10666 4085 10665 4089 10669
4087 10674 4089 10674 4091 10678 4090 10680
TIME...MOT...LOC 0259Z 254DEG 34KT 4088 10656 3975 10622
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
RPK
4 years, 6 months
SVRBOU
by EMWIN-Denver Regional
WUUS55 KBOU 192024
SVRBOU
COC013-014-059-192100-
/O.NEW.KBOU.SV.W.0128.210819T2024Z-210819T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
224 PM MDT Thu Aug 19 2021
The National Weather Service in Denver Colorado has issued a
* Severe Thunderstorm Warning for...
Southwestern Broomfield County in northeastern Colorado...
Northeastern Jefferson County in central Colorado...
Southeastern Boulder County in northeastern Colorado...
* Until 300 PM MDT.
* At 224 PM MDT, a severe thunderstorm was located over Arvada, or 14
miles northwest of Denver, moving northeast at 15 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees. People and
animals outdoors will be injured. Expect hail damage to
roofs, siding, windows, and vehicles.
* Locations impacted include...
southwestern Broomfield, Superior, Louisville, Westminster and
Lafayette.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 4001 10516 3992 10503 3991 10504 3991 10505
3981 10505 3971 10520 3980 10535
TIME...MOT...LOC 2024Z 210DEG 12KT 3984 10518
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RPK
4 years, 7 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 192017
SPSBOU
Special Weather Statement
National Weather Service Denver CO
217 PM MDT Thu Aug 19 2021
COZ036-039-192045-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
CO-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet CO-
217 PM MDT Thu Aug 19 2021
...A strong thunderstorm will impact portions of southwestern
Broomfield, northern Jefferson and southeastern Boulder Counties
through 245 PM MDT...
At 217 PM MDT, Doppler radar was tracking a strong thunderstorm near
Rocky Flats, or 16 miles northwest of Denver, moving northeast at 30
mph.
HAZARD...Winds in excess of 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Northern Lakewood, Arvada, Westminster, Boulder, western Broomfield,
western Wheat Ridge, Lafayette, northwestern Golden, Louisville,
Superior, Rocky Flats, Eldorado Springs and White Ranch Open Space.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
A Severe Thunderstorm Watch remains in effect until 800 PM MDT for
northeastern Colorado.
&&
LAT...LON 4000 10505 3992 10505 3974 10514 3981 10538
3992 10533 3992 10523 3993 10524 3993 10528
3997 10527 3997 10528 3998 10527 4000 10529
4006 10526
TIME...MOT...LOC 2017Z 204DEG 28KT 3985 10522
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
$$
RPK
4 years, 7 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 150115
SPSBOU
Special Weather Statement
National Weather Service Denver CO
715 PM MDT Sat Aug 14 2021
COZ034-150145-
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet CO-
715 PM MDT Sat Aug 14 2021
...A strong thunderstorm will impact portions of east central Summit
County through 745 PM MDT...
At 714 PM MDT, Doppler radar was tracking a strong thunderstorm over
Dillon, or 57 miles west of Denver, moving southeast at 10 mph.
HAZARD...Winds in excess of 40 mph, half inch hail, and very heavy
rain.
SOURCE...Radar indicated.
IMPACT...Travel on I-70 will be hazardous with very heavy rain and
small hail. Gusty winds could blow around unsecured
objects. Minor damage to outdoor objects is possible.
Locations impacted include...
Dillon and Keystone.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3963 10608 3962 10608 3962 10607 3960 10606
3961 10605 3962 10606 3963 10606 3965 10607
3969 10601 3961 10586 3951 10598 3962 10610
TIME...MOT...LOC 0114Z 313DEG 10KT 3963 10601
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
$$
BARJENBRUCH
4 years, 7 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 070136
SPSBOU
Special Weather Statement
National Weather Service Denver CO
736 PM MDT Fri Aug 6 2021
COZ035-038-070200-
Larimer and Boulder Counties Between 6000 and 9000 Feet CO-
Larimer County Below 6000 Feet/Northwest Weld County CO-
736 PM MDT Fri Aug 6 2021
...Strong thunderstorms will impact portions of northwestern Weld and
northeastern Larimer Counties through 800 PM MDT...
At 735 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles north of Wellington to 5 miles
southwest of Buckhorn Mountain, or along a line extending from 27
miles southwest of Cheyenne to 16 miles west of Fort Collins.
Movement was east at 35 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Fort Collins, Windsor, Wellington, Timnath, Nunn, Carr, Livermore,
Stove Prairie, Mishawaka, Teds Place, Bellvue, Rockport, Poudre Park
and Buckhorn Mountain.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4093 10464 4058 10487 4058 10494 4047 10495
4055 10546 4056 10547 4096 10522
TIME...MOT...LOC 0135Z 276DEG 30KT 4081 10506 4053 10537
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
$$
SCHLATTER
4 years, 7 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 070024
SPSBOU
Special Weather Statement
National Weather Service Denver CO
624 PM MDT Fri Aug 6 2021
COZ030-033-035-070100-
Jackson County Below 9000 Feet CO-
Larimer and Boulder Counties Between 6000 and 9000 Feet CO-
South and East Jackson/Larimer/North and Northeast Grand/Northwest
Boulder Counties Above 9000 Feet CO-
624 PM MDT Fri Aug 6 2021
...Strong thunderstorms will impact portions of eastern Jackson and
northwestern Larimer Counties through 700 PM MDT...
At 623 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles east of Walden to 3 miles northwest of
Rand, or along a line extending from 42 miles southwest of Laramie
to 68 miles east of Craig. Movement was east at 40 mph.
HAZARD...Wind gusts up to 50 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Walden, Rand, Cameron Pass, Four Corners, Brownlee, Gould, Chambers
Lake, Glendevey and Kinikinik.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4100 10559 4036 10590 4045 10642 4099 10622
4100 10576
TIME...MOT...LOC 0023Z 269DEG 43KT 4081 10607 4048 10624
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
$$
SCHLATTER
4 years, 7 months
SPSBOU
by EMWIN-Denver Regional
WWUS85 KBOU 062055
SPSBOU
Special Weather Statement
National Weather Service Denver CO
255 PM MDT Fri Aug 6 2021
COZ039-062130-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
CO-
255 PM MDT Fri Aug 6 2021
...A strong thunderstorm will impact portions of southeastern Boulder
County through 330 PM MDT...
At 255 PM MDT, Doppler radar was tracking a strong thunderstorm over
southern Boulder, or 24 miles northwest of Denver, moving northeast
at 25 mph.
HAZARD...Winds in excess of 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Other locations in the path of this storm include east
Boulder and southern Longmont.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4011 10505 4001 10506 3996 10527 3997 10527
3997 10528 3998 10527 3998 10528 4000 10529
4001 10531 4002 10530 4016 10511
TIME...MOT...LOC 2055Z 240DEG 23KT 4000 10525
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
$$
SCHLATTER
4 years, 7 months
FLSBOU
by EMWIN-Denver Regional
WGUS85 KBOU 040251
FLSBOU
Flood Advisory
National Weather Service Denver CO
851 PM MDT Tue Aug 3 2021
COC013-040445-
/O.NEW.KBOU.FA.Y.0173.210804T0251Z-210804T0445Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Boulder CO-
851 PM MDT Tue Aug 3 2021
The National Weather Service in Denver has issued a
* Small Stream Flood Advisory for...
Central Boulder County in northeastern Colorado...
* Until 1045 PM MDT.
* At 851 PM MDT, Doppler radar indicated heavy rain due to showers.
This will cause small stream flooding. Up to 0.50 inches of rain
have fallen.
* Minor flooding in low-lying and poor drainage areas.
* Some locations that will experience flooding include...
mainly rural areas of Central Boulder County including the Left
Hand Canyon burn scar.
This includes the following streams and drainages...
Fourmile Creek and Left Hand Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause minor flooding of
creeks and streams, roads and roadside culverts. The heavy rains
could also trigger rock slides or debris flows in steep terrain.
&&
LAT...LON 4008 10549 4008 10544 4005 10545 4006 10549
$$
RPK
4 years, 7 months