Weather Alerts For Four Corners, WY

URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD 141 AM MDT Thu Mar 19 2026 ...CRITICAL FIRE WEATHER CONDITIONS THURSDAY ACROSS PORTIONS OF NORTHEASTERN WYOMING AND WESTERN SOUTH DAKOTA... .Anomalously warm temperatures (70s to low 80s), very dry air (relative humidity as low as 10 percent), and gusty west winds (gusts 25 to 35 mph) will result in critical fire weather conditions this afternoon. Humidity recovery will be poor through daybreak today, particularly for the Black Hills and northeastern Wyoming. Strongest winds are expected across southern Campbell County and northwestern South Dakota where gusts to 35 mph are expected. Lesser confidence in critical gusts elsewhere, however between the low humidity, dry antecedent conditions, and transient critical gusts, critical fire weather conditions can be expected for much of the area. Have added the Northern and Wyoming Black Hills to the Red Flag Warning. Anomalously warm temperatures, very dry air, and gusty winds will result in critical fire weather conditions. Snow cover may mitigate fire risk in some areas but confident enough in widespread critical fire weather conditions to add these zones. Northern Black Hills-Wyoming Black Hills- 141 AM MDT Thu Mar 19 2026 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 7 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 318 AND 319... The National Weather Service in Rapid City has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 11 AM this morning to 7 PM MDT this evening. * AFFECTED AREA...Fire Weather Zones 318 Wyoming Black Hills and 319 Northern Black Hills. * WINDS...West 10 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 13 percent. * IMPACTS...The combination of gusty winds and low relative humidity would 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. &&