Alert archive / Oklahoma / Areal Flood Warnings in 2018

Areal Flood Warning 5, NWS Tulsa, OK

February 25, 2018Adair County, LeFlore County, Sequoyah County, Oklahoma; Crawford County, Sebastian County, Arkansas

NWS Tulsa, OK issued this areal flood warning at Feb 25, 2018, 8:53 AM CST for Adair County, LeFlore County, Sequoyah County, Oklahoma; Crawford County, Sebastian County, Arkansas. It was in force for 24 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: Feb 25, 2018, 8:53 AM CST (14:53 UTC)
Expired: Feb 26, 2018, 8:45 AM CST
In force: 24 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Crawford County, AR, Sebastian County, AR, Adair County, OK, LeFlore County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 20 km from the middle of the area, began a volume at 14:58 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

Springfield, MO (KSGF), launched 12:00Z, 2.9 hours before the alert went out and 178 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1725 m above ground
0-6 km bulk shear: 92 kt
0-1 km storm-relative helicity: -262 m²/s²
0-3 km storm-relative helicity: -128 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this areal flood warning went out at Feb 25, 5:42 AM CST, 3 hours 11 minutes earlier.

Area forecast discussion, Feb 25, 5:42 AM CST, 3 hours 11 minutes before

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Hazardous weather outlook, Feb 25, 4:51 AM CST, 4 hours 2 minutes before

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The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 24, 6:51 PM CST	River Flood Advisory	TSA	Pushmataha	24 hr
Feb 24, 7:58 PM CST	River Flood Warning	TSA	LeFlore	14 hr
Feb 24, 9:19 PM CST	Areal Flood Warning	TSA	Haskell, McIntosh, Muskogee, Okfuskee, Okmulgee, Pittsburg and 1 more	36 hr
Feb 24, 9:22 PM CST	Areal Flood Warning	TSA	Adair, Cherokee, Delaware, Mayes, Ottawa, Sequoyah	12 hr
Feb 25, 9:01 AM CST	Areal Flood Warning	TSA	Adair, Cherokee, Delaware, Mayes, Ottawa, Sequoyah	24 hr
Feb 24, 8:10 PM CST	River Flood Advisory	TSA	Franklin, Johnson, Logan	40 hr
Feb 25, 2:01 AM CST	River Flood Warning	TSA	Franklin, Johnson, Logan	30 hr

Nearby

Areal Flood Warnings in Oklahoma, 2018 Areal Flood Warnings in Arkansas, 2018 Every areal flood warning in 2018

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.