Alert archive / Oklahoma / Red Flag Warnings in 2021
Red Flag Warning 7, NWS Tulsa, OK
NWS Tulsa, OK issued this red flag warning at Apr 8, 2021, 12:51 PM CDT for 9 counties in Oklahoma. 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
- Apr 8, 2021, 12:51 PM CDT (17:51 UTC)
- Expired
- Apr 8, 2021, 7:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Tulsa, OK
Counties Creek County, OK, McIntosh County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Pawnee County, OK, Pittsburg County, OK, Tulsa County, OK, Wagoner County, OK
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 5.9 hours before the alert went out and 141 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
- 2019 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
654 WWUS84 KTSA 081751 RFWTSA URGENT - FIRE WEATHER MESSAGE National Weather Service Tulsa OK 1251 PM CDT Thu Apr 8 2021 OKZ054-059-060-064>067-070-071-073-090000- /O.CAN.KTSA.FW.W.0006.210409T1700Z-210410T0000Z/ /O.NEW.KTSA.FW.W.0007.210408T1751Z-210409T0000Z/ Osage-Pawnee-Tulsa-Creek-Okfuskee-Okmulgee-Wagoner-Muskogee- McIntosh-Pittsburg- 1251 PM CDT Thu Apr 8 2021 ...CORRECTION TO EFFECTIVE TIME/DATE... ...RED FLAG WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR VERY DRY AND WINDY CONDITIONS FOR PARTS OF NORTHEAST AND EAST CENTRAL OKLAHOMA... ...RED FLAG WARNING IS CANCELLED FOR FRIDAY ... The National Weather Service in Tulsa has issued a Red Flag Warning, which is in effect until 7 PM CDT this evening. The Red Flag Warning that was erroneously issued for Friday has been cancelled. * AFFECTED AREA...IN Oklahoma, Osage, Pawnee, Tulsa, Creek, Okfuskee, Okmulgee, Wagoner, Muskogee, McIntosh, and Pittsburg counties. * WIND...West 15-25 mph, with occasional gusts around 30 mph. * HUMIDITY...Minimum 15-25%. * TEMPERATURE...Mid to upper 70s. * 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. && $$
1 follow-up statement
084 WWUS84 KTSA 090006 RFWTSA URGENT - FIRE WEATHER MESSAGE National Weather Service Tulsa OK 706 PM CDT Thu Apr 8 2021 OKZ054-059-060-064>067-070-071-073-090115- /O.EXP.KTSA.FW.W.0007.000000T0000Z-210409T0000Z/ Osage-Pawnee-Tulsa-Creek-Okfuskee-Okmulgee-Wagoner-Muskogee- McIntosh-Pittsburg- 706 PM CDT Thu Apr 8 2021 ...RED FLAG WARNING HAS EXPIRED FOR VERY DRY AND WINDY CONDITIONS... Winds will continue to slowly subside this evening with increasing humidities. Although critical fire weather conditions have ended, an elevated fire danger threat will persist through mid evening. $$
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 12:34 PM CDT | Red Flag Warning | TSA | Creek, McIntosh, Muskogee, Okfuskee, Okmulgee, Pawnee and 3 more | 17 min |
Nearby
Red Flag Warnings in Oklahoma, 2021Every red flag warning in 2021
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.