Alert archive / Oklahoma / Flash Flood Watches in 2015

Flash Flood Watch 11, NWS Tulsa, OK

July 6, 201522 counties in Oklahoma; 4 counties in Arkansas

NWS Tulsa, OK issued this flash flood watch at Jul 6, 2015, 2:12 AM CDT for 22 counties in Oklahoma; 4 counties in Arkansas. It took effect at Jul 6, 2015, 7:00 PM CDT. It was in force for 48 hr.

The area

The counties it named.

The facts

Issued: Jul 6, 2015, 2:12 AM CDT (07:12 UTC)
In effect from: Jul 6, 2015, 7:00 PM CDT
Expired: Jul 8, 2015, 7:00 PM CDT
In force: 48 hr
Issued by: NWS Tulsa, OK
Flood severity: None

All 26 counties

Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR, Adair County, OK, Cherokee County, OK, Choctaw County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Haskell County, OK, Latimer 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, Pushmataha County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 42 km from the middle of the area, began a volume at 07:14 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 00:00Z, 7.2 hours before the alert went out and 176 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: 87 J/kg
Mixed-layer CIN: -242 J/kg
Mixed-layer LCL: 2320 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -54 m²/s²
0-3 km storm-relative helicity: -84 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 flash 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 flash flood watch went out at Jul 5, 11:49 PM CDT, 2 hours 23 minutes earlier.

Area forecast discussion, Jul 5, 11:49 PM CDT, 2 hours 23 minutes before

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Hazardous weather outlook, Jul 5, 9:29 PM CDT, 4 hours 43 minutes before

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In the hours before

Local storm report, Jul 5, 8:26 PM CDT, 5 hours 46 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
Jul 6, 6:52 PM CDT	Special Weather Statement	TSA	Osage	53 min
Jul 5, 8:12 PM CDT	Flash Flood Warning Emergency	TSA	Crawford, Sebastian	3 hr
Jul 5, 8:41 PM CDT	Areal Flood Warning	TSA	Crawford, Sebastian	12 hr

Nearby

Flash Flood Watches in Oklahoma, 2015 Flash Flood Watches in Arkansas, 2015 Every flash flood watch in 2015

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.