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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Rapid City SD
321 AM MDT Fri Oct 20 2017

SDZ024-026>030-041-042-074-WYZ054>058-071-211300-
Northern Black Hills-Rapid City-Southern Foot Hills-
Central Black Hills-Southern Black Hills-Custer Co Plains-
Fall River-Oglala Lakota-Hermosa Foot Hills-Northern Campbell-
Southern Campbell-Western Crook-Wyoming Black Hills-Weston-
Northeastern Crook-
321 AM MDT Fri Oct 20 2017

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

.DAY ONE...Today and Tonight

Very warm temperatures, gusty southwest winds, and low relative
humidity will result in critical fire weather conditions today. A
Red Flag Warning is in effect this afternoon and evening.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

No hazardous weather is expected at this time.

.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

$$



Red Flag Warning

URGENT - FIRE WEATHER MESSAGE
National Weather Service Rapid City SD
332 AM MDT Fri Oct 20 2017

...RED FLAG WARNING FRIDAY FOR GUSTY WINDS AND LOW RELATIVE
HUMIDITY FOR NORTHEASTERN WYOMING AND WESTERN SOUTH DAKOTA...

.Very warm and dry weather is again expected this afternoon with
minimum relative humidity values of 10 to 18 percent. Southwest
winds gusting to 25 to 35 mph will also re-develop. A strong cold
front will move through the area tonight with winds switching to
the northwest. The combination of dry weather and gusty winds will
create critical fire weather conditions.

SDZ260>262-WYZ259-297>299-210100-
/O.CON.KUNR.FW.W.0013.171020T1800Z-171021T0600Z/
Northern Black Hills-Northwestern South Dakota Plains-
Southern Black Hills-Southern Campbell-Northern Campbell-
Crook and Weston County Plains-Wyoming Black Hills-
332 AM MDT Fri Oct 20 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO MIDNIGHT
MDT TONIGHT FOR LOW RELATIVE HUMIDITY AND GUSTY WINDS FOR FIRE
WEATHER ZONES 259...297...298 AND 299...

* Affected Area...Fire Weather Zones 259...260...261...262...
  297...298 and 299.

* Winds...Southwest 15 to 20 mph with frequent gusts up to 35
  mph.

* Relative Humidity...As low as 10 to 15 percent.

* Temperatures...In the mid 70s to mid 80s.

* Impacts...The combination of gusty winds and low relative
  humidity will produce critical fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now...or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$



U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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