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Special Weather Statement


Special Weather Statement
National Weather Service Riverton WY
153 PM MDT Fri Jul 3 2020

WYZ010-011-032045-
Southeast Johnson County-Northeast Johnson County-
153 PM MDT Fri Jul 3 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN JOHNSON COUNTY UNTIL
245 PM MDT...

At 153 PM MDT, Doppler radar was tracking a strong thunderstorm 18
miles southeast of Buffalo, moving northeast at 15 mph.

Wind gusts of 50 to 55 mph will be possible with this storm.

This storm will remain over mainly rural areas of northeastern
Johnson County.

This includes the following highways...
 Interstate 25 between mile markers 274 and 288.
 Interstate 90 between mile markers 64 and 86.

LAT...LON 4398 10667 4408 10674 4447 10650 4413 10609
TIME...MOT...LOC 1953Z 232DEG 13KT 4411 10656

$$

Hulme


Air Quality Alert


COC013-123-001-031-059-035-005-014-069-032200-
Boulder-Weld-Adams-Denver-Jefferson-Douglas-Arapahoe-
Broomfield-Larimer-
410 PM MDT Thu Jul 2 2020

...OZONE ACTION DAY ALERT FROM 400 PM THURSDAY UNTIL 400 PM
FRIDAY...

The Colorado Department of Public Health and Environment has
issued the following...

WHAT...Ozone Action Day Alert.

WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties

WHEN...400 PM Thursday July 02 to 400 PM Friday July 03

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Requests to limit driving of non-ZEV
vehicles (i.e., gas or diesel) are now in effect until at least 4
p.m. Friday, July 3, 2020. Ozone concentrations in the Unhealthy
for Sensitive Groups category are expected on Thursday and Friday.
On Thursday, concentrations in the Unhealthy for Sensitive Groups
category are most likely in the western portions of the
Denver/Boulder Metro area, from Golden northward to Boulder. On
Friday this area expands to include areas from the southwestern
suburbs of Denver northward along the foothills through Golden and
Boulder to the Ft. Collins area.For areas included in this
advisory that are not expected to reach the Unhealthy for
Sensitive Groups (USG) air quality designation, we request that
activities, such as driving non-ZEV vehicles (i.e., gas or
diesel), be reduced to lessen the impacts on neighboring air
quality. Additional air pollution in this region may directly
worsen air quality or contribute to precursors which may also
adversely affect air quality.  For Colorado air quality
conditions, forecasts and advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx

HEALTH INFORMATION...Increasing likelihood of respiratory symptoms
and breathing discomfort in active children and adults and people
with lung disease, such as asthma. Active children and adults, and
people with lung disease, such as asthma, should reduce prolonged
or heavy outdoor exertion.

$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1053 AM MDT Fri Jul 3 2020

COZ030>051-041700-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1053 AM MDT Fri Jul 3 2020

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Scattered thunderstorms are expected over the Front Range
foothills by early this afternoon which will then move across the
plains through the late afternoon and early evening hours.
Isolated severe thunderstorms may develop as the storms move east
of a Fort Morgan to Limon line. Wind gusts up to 60 mph and hail
up to an inch in diameter will be the main threat. In addition,
heavy rainfall may cause some minor flooding over portions of the
plains as well.

The shower and thunderstorm activity will gradually end over the
plains during the evening hours.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Storm coverage will increase further on Saturday as moisture
remains high. While coverage will be slightly less Sunday, this
weekend`s storms will be quite wet and may produce heavy rain for
localized flooding issues. Further east, more instability will
allow for a better chance of hail and gusty outflow winds. Putting
lightning on top off all the hazards mentioned above, all people
planning on spending the holiday weekend outside need to make sure
they have a way of receiving weather alerts.

Monday through Wednesday will bring a warmer and drier weather
pattern due to westerly flow aloft increasing. Tuesday and
Wednesday may be within a few degrees of the record high
temperatures for those dates.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight. However, any
reports of severe weather would be appreciated.

$$

Hazardous Weather Outlook
National Weather Service North Platte NE
1110 AM CDT Fri Jul 3 2020

NEZ004>010-022>029-035>038-056>059-069>071-094-041615-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-
Grant-Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-
Logan-Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
1110 AM CDT Fri Jul 3 2020 /1010 AM MDT Fri Jul 3 2020/

This Hazardous Weather Outlook is for portions of western and
north central Nebraska.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

Isolated to scattered thunderstorms will affect areas along and
west of Highway 61 this evening. A storm or two may be capable of
large hail and strong winds, primarily across the eastern
Panhandle.


.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

Scattered thunderstorms redevelop Saturday afternoon across
western Nebraska and move east through the evening and night.
Some of the storms may be severe, with large hail, damaging
winds, and heavy rain being the primary threats.

Daily thunderstorm chances continue through mid-week. The threat
for severe weather is uncertain at this time.

.SPOTTER INFORMATION STATEMENT...

Please relay any information about observed severe weather to the
NWS.

&&

Get your weather, hydrological, and climate information at
http://www.weather.gov/northplatte

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
353 AM MDT Fri Jul 3 2020

NEZ002-003-019>021-054-055-095-096-WYZ101-102-106>108-116>119-
041000-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-South Laramie Range-
South Laramie Range Foothills-Central Laramie County-
East Laramie County-
353 AM MDT Fri Jul 3 2020

This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming and southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

Scattered showers and thunderstorms will develop this afternoon. A
few strong storms are possible with strong downburst winds and
hail.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Isolated to scattered thunderstorms are possible through the
weekend and into early next week.

.Spotter information statement...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
353 AM MDT Fri Jul 3 2020

WYZ103>105-109>115-041000-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Carbon County-North Snowy Range Foothills-
Southwest Carbon County-Sierra Madre Range-
Upper North Platte River Basin-Snowy Range-Laramie Valley-
353 AM MDT Fri Jul 3 2020

This hazardous weather outlook is for portions of south central
Wyoming and southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

Isolated showers with a thunderstorm possible. Otherwise, warm and dry
conditions expected resulting in elevated fire weather conditions.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Isolated thunderstorms are possible through the weekend and into
early next week.

.Spotter information statement...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Rapid City SD
345 AM MDT Fri Jul 3 2020

SDZ002-013-026-028-031-072-073-WYZ055-058-040945-
Perkins-Northern Meade Co Plains-Rapid City-Central Black Hills-
Pennington Co Plains-Sturgis/Piedmont Foot Hills-
Southern Meade Co Plains-Southern Campbell-Weston-
345 AM MDT Fri Jul 3 2020

This Hazardous Weather Outlook is for portions of northwestern
South Dakota...southwestern South Dakota...the Black Hills of
South Dakota...and northeast Wyoming.

.DAY ONE...Today and Tonight

There is a marginal risk of severe thunderstorms this afternoon
and evening. Large hail and damaging winds will be possible.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Daily chances for thunderstorms continue through early next week.
Strong to severe storms will be possible at times.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

$$

Hazardous Weather Outlook
National Weather Service Rapid City SD
345 AM MDT Fri Jul 3 2020

SDZ014-027-029-030-032-041>044-046-047-049-074-040945-
Ziebach-Southern Foot Hills-Southern Black Hills-Custer Co Plains-
Haakon-Fall River-Oglala Lakota-Jackson-Bennett-Mellette-Todd-
Tripp-Hermosa Foot Hills-
345 AM MDT Fri Jul 3 2020 /445 AM CDT Fri Jul 3 2020/

This Hazardous Weather Outlook is for portions of northwestern
South Dakota...south central South Dakota...southwestern South
Dakota...and the Black Hills of South Dakota.

.DAY ONE...Today and Tonight

Thunderstorms will be possible this afternoon and evening, but
severe weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Daily chances for thunderstorms continue through early next week.
Strong to severe storms will be possible at times.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

$$

Hazardous Weather Outlook
National Weather Service Rapid City SD
345 AM MDT Fri Jul 3 2020

SDZ001-012-024-025-WYZ054-056-057-071-040945-
Harding-Butte-Northern Black Hills-Northern Foot Hills-
Northern Campbell-Western Crook-Wyoming Black Hills-
Northeastern Crook-
345 AM MDT Fri Jul 3 2020

This Hazardous Weather Outlook is for portions of northwestern
South Dakota...the Black Hills of South Dakota...northeast
Wyoming...and the Black Hills of Wyoming.

.DAY ONE...Today and Tonight

There is a slight risk of severe thunderstorms this afternoon and
evening. Large hail and damaging winds will be possible.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Daily chances for thunderstorms continue through early next week.
Strong to severe storms will be possible at times.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

$$

Hazardous Weather Outlook
National Weather Service Riverton WY
227 AM MDT Fri Jul 3 2020

WYZ001>020-022>030-041200-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-
Northeast Johnson County-Southeast Johnson County-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
227 AM MDT Fri Jul 3 2020

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight.

Isolated afternoon and evening thunderstorms over northwest and
northern Wyoming. Some storms could produce strong wind gusts and
hail.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...A chance of afternoon and nighttime thunderstorms in
the north and northwest. Some storms will produce strong wind
gusts and hail.

Sunday and Monday...Isolated to locally scattered afternoon and
nighttime thunderstorms in the north and far east. Elevated to
possibly critical fire weather conditions over central and
southern areas.

Tuesday and Wednesday...Isolated afternoon and evening thunderstorms
over the far north. Elevated to critical fire weather conditions
over much of the area.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report hail size and wind
gusts over 50 mph. Thank you.

$$

TEAM RIVERTON

Hazardous Weather Outlook
National Weather Service Grand Junction CO
220 AM MDT Fri Jul 3 2020

COZ001>014-017>023-UTZ022>025-027>029-041300-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-
Upper Gunnison River Valley-Uncompahgre Plateau and Dallas Divide-
Northwest San Juan Mountains-Southwest San Juan Mountains-
Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
220 AM MDT Fri Jul 3 2020

This hazardous weather outlook is for eastern Utah and western
Colorado.

.DAY ONE...Today and Tonight

Scattered showers and thunderstorms will develop this afternoon
and early evening, favoring the higher terrain along the Divide.
Lightning, gusty winds and brief heavy rain are expected with
storms. Isolated dry thunderstorms are possible early in the
afternoon.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Storm coverage will increase on Saturday as moisture increases
with wetting rains becoming the most probable threat. Drier air
will work into the region Sunday and Monday with only isolated
showers and storms expected along the Divide both days. Drier and
warmer weather will return to the region early next week under dry
southwest flow aloft.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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