Alert archive / Oklahoma / Red Flag Warnings in 2017
Red Flag Warning 13, NWS Tulsa, OK
NWS Tulsa, OK issued this red flag warning at Nov 20, 2017, 9:15 AM CST for 16 counties in Oklahoma. It took effect at Nov 20, 2017, 11:00 AM CST. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 20, 2017, 9:15 AM CST (15:15 UTC)
- In effect from
- Nov 20, 2017, 11:00 AM CST
- Expired
- Nov 20, 2017, 5:00 PM CST
- In force
- 6 hr
- Issued by
- NWS Tulsa, OK
Counties Craig County, OK, Creek County, OK, Delaware County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pawnee County, OK, Pittsburg County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 13 km from the middle of the area, began a volume at 15:15 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 3.3 hours before the alert went out and 184 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1988 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
885 WWUS84 KTSA 201515 RFWTSA URGENT - FIRE WEATHER MESSAGE National Weather Service Tulsa OK 915 AM CST Mon Nov 20 2017 OKZ054>067-202300- /O.NEW.KTSA.FW.W.0013.171120T1700Z-171120T2300Z/ Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes- Delaware-Creek-Okfuskee-Okmulgee-Wagoner- 915 AM CST Mon Nov 20 2017 ...RED FLAG WARNING IN EFFECT FROM 11 AM UNTIL 5 PM CST THIS AFTERNOON FOR VERY DRY AND WINDY CONDITIONS FOR PORTIONS OF NORTHEAST OKLAHOMA... The National Weather Service in Tulsa has issued a Red Flag Warning, which is in effect until 5 PM CST this afternoon. * AFFECTED AREA...IN Oklahoma, Osage, Washington, Nowata, Craig, Ottawa, Pawnee, Tulsa, Rogers, Mayes, Delaware, Creek, Okfuskee, Okmulgee, and Wagoner counties. * WIND...South-southwest at 20 to 25 mph, gusting 30 to 35 mph. * HUMIDITY...20 to near 30 percent. * TEMPERATURE...Low to mid 60s. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that a dangerous combination of weather conditions and dry vegetation is expected within 24 hours, favoring rapid growth and spread of any wildfires. The primary weather factors include stronger winds, lower humidities, and warmer temperatures. && $$ PMP
2 follow-up statements
575 WWUS84 KTSA 202029 RFWTSA URGENT - FIRE WEATHER MESSAGE National Weather Service Tulsa OK 229 PM CST Mon Nov 20 2017 ...CRITICAL FIRE WEATHER CONDITIONS OCCURRING ACROSS PORTIONS OF NORTHEAST OKLAHOMA THIS AFTERNOON... .Strong south winds, combined with very dry air in place and favorable vegetational conditions is yielding conditions conducive for the rapid development and spread of wildfires. Several active fires are ongoing across the region. OKZ070-071-073-202300- /O.EXA.KTSA.FW.W.0013.000000T0000Z-171120T2300Z/ Muskogee-McIntosh-Pittsburg- 229 PM CST Mon Nov 20 2017 ...RED FLAG WARNING IN EFFECT UNTIL 5 PM CST THIS AFTERNOON FOR VERY DRY AND WINDY CONDITIONS FOR PORTIONS OF NORTHEAST OKLAHOMA... The National Weather Service in Tulsa has issued a Red Flag Warning, which is in effect until 5 PM CST this afternoon. * AFFECTED AREA...IN Oklahoma, areas near and to the west of the highway 69 corridor. * WIND...South-southwest at 20 to 25 mph, gusting 30 to 35 mph. * HUMIDITY...20 to 30 percent. * TEMPERATURE...Mid 60s. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that a dangerous combination of weather conditions and dry vegetation is expected within 24 hours, favoring rapid growth and spread of any wildfires. The primary weather factors include stronger winds, lower humidities, and warmer temperatures. && $$ OKZ054>067-202300- /O.CON.KTSA.FW.W.0013.000000T0000Z-171120T2300Z/ Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes- Delaware-Creek-Okfuskee-Okmulgee-Wagoner- 229 PM CST Mon Nov 20 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM CST THIS AFTERNOON FOR VERY DRY AND WINDY CONDITIONS FOR PORTIONS OF NORTHEAST OKLAHOMA... * AFFECTED AREA...IN Oklahoma, areas near and to the west of the highway 69 corridor. * WIND...South-southwest at 20 to 25 mph, gusting 30 to 35 mph. * HUMIDITY...20 to 30 percent. * TEMPERATURE...Mid 60s. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that a dangerous combination of weather conditions and dry vegetation is expected within 24 hours, favoring rapid growth and spread of any wildfires. The primary weather factors include stronger winds, lower humidities, and warmer temperatures. && $$ Lacy
844 WWUS84 KTSA 202304 RFWTSA URGENT - FIRE WEATHER MESSAGE National Weather Service Tulsa OK 504 PM CST Mon Nov 20 2017 OKZ054>067-070-071-073-210015- /O.EXP.KTSA.FW.W.0013.000000T0000Z-171120T2300Z/ Osage-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes- Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Muskogee-McIntosh- Pittsburg- 504 PM CST Mon Nov 20 2017 ...RED FLAG WARNING EXPIRED AT 5 PM FOR PORTIONS OF NORTHEAST OKLAHOMA... Weather conditions will continue to improve as sunset approaches. Winds will decrease and the relative humidity will recover. $$
Nearby
Red Flag Warnings in Oklahoma, 2017Every red flag warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.