Alert archive / Oklahoma / Flood Watches in 2023

Flood Watch 7, NWS Tulsa, OK

August 13, 20234 counties in Oklahoma; Benton County, Carroll County, Arkansas

NWS Tulsa, OK issued this flood watch at Aug 13, 2023, 1:38 PM CDT for 4 counties in Oklahoma; Benton County, Carroll County, Arkansas. It took effect at Aug 13, 2023, 7:00 PM CDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Aug 13, 2023, 1:38 PM CDT (18:38 UTC)
In effect from: Aug 13, 2023, 7:00 PM CDT
Expired: Aug 14, 2023, 7:00 AM CDT
In force: 12 hr
Issued by: NWS Tulsa, OK
Flood severity: None

Counties Benton County, AR, Carroll County, AR, Craig County, OK, Delaware County, OK, Mayes County, OK, Ottawa County, OK

The radar

The Tulsa radar (KINX), 90 km from the middle of the area, began a volume at 18:38 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, 6.6 hours before the alert went out and 286 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: 436 J/kg
Mixed-layer CIN: -353 J/kg
Mixed-layer LCL: 1960 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 205 m²/s²
0-3 km storm-relative helicity: 198 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch 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 flood watch went out at Aug 13, 1:01 PM CDT, 37 minutes earlier.

Area forecast discussion, Aug 13, 1:01 PM CDT, 37 minutes before

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Hazardous weather outlook, Aug 13, 4:56 AM CDT, 8 hours 42 minutes before

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In the hours before

Local storm report, Aug 13, 10:12 AM CDT, 3 hours 26 minutes before

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Local storm report, Aug 13, 10:13 AM CDT, 3 hours 25 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
Aug 13, 3:21 AM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers	39 min
Aug 13, 3:38 AM CDT	Special Weather Statement	TSA	Craig, Ottawa	52 min
Aug 13, 4:04 AM CDT	Special Weather Statement	TSA	Delaware	41 min
Aug 13, 5:15 AM CDT	Special Weather Statement	TSA	Madison	30 min
Aug 13, 5:52 AM CDT	Special Weather Statement	TSA	Carroll, Madison	38 min

Nearby

Flood Watches in Oklahoma, 2023 Flood Watches in Arkansas, 2023 Every flood watch in 2023

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.