Fire Situation Report – April 11, 2018


Oklahoma Department of Agriculture, Food and Forestry - Forestry Services

PROTECTION AREA STATISTICS* for Reporting Period 0800 04/10/18 thru 0800 04/11/18 

NE Area – 5 Fires Burned 139 Acres (3-Incendiary, 2-Escaped Control Burns)

EC Area – No New Activity

SE Area – No New Activity

Large / Significant Fire Activity within the Protection Area: No New Activity 

Fire Activity with OFS Response outside of the Protection Area: No New Activity

 OFS Prescribed Fire Activity: No New activity

 FIRE DEPARTMENT STATISTICS from www.firereporting.ok.gov recorded on 04/10/18 thru 04/11/18 

  • No New Activity Reported

Statewide Discussion: 

Escalating fire danger today through Friday continuing through the weekend and broadening in spatial coverage is the headline.  Critical fire weather indices are will expand eastward each day through Friday with an extended burning period today, expectations of a continuous burning period Thursday into Friday with very poor overnight recoveries in the west and a continuing fire threat in the post-frontal environment.
Red Flag Warning in effect today for a large portion of western Oklahoma and in the Flint Hills section of Oklahoma including Osage, Washington and Pawnee counties.  Within the warned area illustrated to the right, critical fire weather indices are expected to develop late morning and persist into the evening.  Fuels subjected to drying in previous days and with hard freezes setting back green up where sufficient soil moisture was present are again very receptive to new fire starts and will support problematic fire behavior.  Temperatures 83°-91° and relative humidity values 7-18% in the Panhandle and Northwest 15-25 in the west will deliver fine-dead fuel moisture values of 2-5% with Probability of Ignition in excess of 90%.  Southwest winds sustained 16-28 mph with some gusts near 35 mph will support rates of fire spread in typical, ungrazed grass dominated fuels  in excess of 250 ft/min (2.8 mph) with flame lengths 10-20 ft. at the head fire.  Northern and the central core Oklahoma will also experience more intense fire danger than has been observed in recent days with potential for Red Flag criteria to be met.  Relative humidity values will likely dip just below 30% as temperatures warm to around 80°.  Winds will be southerly 15-23 mph with some gusts in excess of 30 mph.  Expect rapid rates of fire spread in dormant grass dominated fuels and erratic fire behavior where green up has initiated.  Timber fuels will support active fire behavior and areas where brush (including juniper) is present will pose problematic fire behavior.
 
A Fire Weather Watch, with strongly anticipated Red Flag Criteria met on Thursday and Friday, is in effect for a broader swath of western and central Oklahoma.  Extreme Fire danger is anticipated and will likely present the greatest fire threat of the dormant season thus far.  Fine-dead fuel moisture values below 5% are probable west of I-35 on Thursday and west of US177 on Friday.  There is potential for historic fire weather indices to be in place in far western Oklahoma on Friday.  
 
Thursday – Temperatures into the 90°’s across a large section of western Oklahoma and mid-80°’s extending east of I-35, relative humidity values west of the dry line in single digit values, stout south to southwest winds gusting in excess of 35 mph will support both problematic and extreme fire behavior. In the Oklahoma Panhandle and northwest Oklahoma, firefighters will experience a burning period that lasts through the entire night into Friday with overnight moisture recovery likely remaining below 20%.
 
Friday – Dry line and cold front progression will be the will sustain extreme fire danger in the north and west reseriving the severe storm potential for southeast Oklahoma..  The cold front will move through the highest fire danger area in Oklahoma (Panhandle/Northwest/West Central) during the peak of the burning period unfortunately.  Very strong south winds will shoft clockwise to the northwest with gusts in excess of 40 mph likely.
 

Resources: Resource Hotline (800) 800-2481

– OFS Task Forces (Woodward/Weatherford)

- OHP/OFS Aerial Observation Platform

1 – Air Attack Platform

2 - Type 1 Helicopters

– National Guard Helicopters

** County Wildland Task Forces should be prepared for mobilization**

Burn Ban Status:

For the most current information on Burn Bans click on the following link: http://www.forestry.ok.gov/burn-ban-info