Alert archive / Oklahoma / Flood Watches in 2012

Flood Watch 1, NWS Norman, OK

January 24, 2012Atoka County, Bryan County, Marshall County, Oklahoma

NWS Norman, OK issued this flood watch at Jan 24, 2012, 10:04 PM CST for Atoka County, Bryan County, Marshall County, Oklahoma. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Jan 24, 2012, 10:04 PM CST (04:04 UTC)
Expired
Jan 25, 2012, 4:04 PM CST
In force
18 hr
Issued by
NWS Norman, OK
Flood severity
None

Counties Atoka County, OK, Bryan County, OK, Marshall County, OK

The radar

The Norman radar (KTLX), 159 km from the middle of the area, began a volume at 04:06 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 00:00Z, 4.1 hours before the alert went out and 155 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2012-01-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2012-01-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 206 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
2498 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
218 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 24, 6:06 PM CSTSpecial Weather StatementOUNCaddo24 min
Jan 25, 9:37 AM CSTAreal Flood WarningOUNAtoka, Bryan6 hr
Jan 25, 1:22 PM CSTRiver Flood WarningOUNAtoka, Bryan24 hr
Jan 24, 6:32 PM CSTSpecial Weather StatementOUNArcher28 min

Nearby

Flood Watches in Oklahoma, 2012Every flood watch in 2012

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.