Fire Situation Report – March 9, 2019

Oklahoma Department of Agriculture, Food and Forestry - Forestry Services

PROTECTION AREA STATISTICS for Reporting Period 03/08/2019 thru 03/09/2019 

NE Area – 

EC Area – Statistics Not Available at Time of Report

SE Area – 

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 Acivity 

FIRE DEPARTMENT STATISTICS from recorded on 03/08/2019 thru 03/09/2019 

  • No New Activity Reported

Statewide Discussion: 

A very dry airmass will shift into Oklahoma today in the wake of precipitation moving through the state overnight and a band of wraparound showers in northwest counties this morning.  Rapid drying of fine fuels facilitated by warm temperatures, falling relative humidity and stout winds as a cold front moves through the state will support potential for increased initial attack activity.  While the probability of significant fire occurrence is very limited, there is some potential for large fire occurrence where the driest fuels are present in the western tier of counties. The strongest winds and driest fuels do not fully align today facilitating reasonable probability of successful initial attack.
The highest fire danger indices today will be present in southwest Oklahoma south and west of a line from Ellis County to Cotton County.  Some initial attack activity should be anticipated elsewhere in western and central Oklahoma especially where wetting rains (>0.20”) were received.
Southwest Counties:  Relative humidity values will dive into the 12-17% range with temperature near 70°.  Warm/dry air combined with stout winds through the early afternoon hours will facilitate rapid drying of fine-dead fuels with values of 4% in the area and some sites registering 3%.  Westerly winds this morning will be strongest midday sustained 20-30 with some gusts nearing 40 mph although they are expected to gradually diminish during the afternoon as the wind direction shifts clockwise to the northwest.  
Grass (ungrazed/un-hayed): 190-285 ft./min., flame lengths at head fire 13-16 ft.
Short Grass (grazed/hayed): 110-155 ft./min., flame lengths at head fire 8-11 ft.
Mixed Fuels (grass/shrub): 85-120 ft./min., flame lengths at head fire 12-14 ft.
Northwest Counties & Panhandle Counties: Fine fuels will dry rapidly today although winds are forecast to slacken into the afternoon hours when fuels will be driest.  Winds will be strongest midday with some gusts nearing 40 mph, although as wind direction shifts from west to north they are expected to gradually diminish into the evening.  Temperature this afternoon 60°-67° and relative humidity values ranging from 11% in the western Panhandle to 29% in parts of northwest Oklahoma will prompt receptive fuels this afternoon.  
Grass (ungrazed/un-hayed): 170-265 ft./min., flame lengths at head fire 12-15 ft.
Short Grass (grazed/hayed): 90-120ft./min., flame lengths at head fire 5-9 ft.
Mixed Fuels (grass/shrub): 75-110 ft./min., flame lengths at head fire 11-13 ft.
Initial attack activity can be expected in central Oklahoma as well although fuels should not exhibit resistance to suppression actions.
Sunday will bring reduced fire danger with somewhat cooler temperatures increasing sky cover and increasing dew point temperatures.  We will issue an update on Monday, although increasing forecast confidence in wetting rains is likely to dampen fire danger through the week.
Burn Ban Status:   No Burn Bans presently in effect.