Alert archive / Oklahoma / Special Weather Statements in 2021

Special Weather Statement, NWS Norman, OK

March 23, 2021Cleveland County, Oklahoma

NWS Norman, OK issued this special weather statement at Mar 23, 2021, 1:13 AM CDT for Cleveland County, Oklahoma. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 23, 2021, 1:13 AM CDT (06:13 UTC)
Expired
Mar 23, 2021, 1:45 AM CDT
In force
32 min
Issued by
NWS Norman, OK

County Cleveland County, OK

The radar

The Norman radar (KTLX), 13 km from the middle of the area, began a volume at 06:16 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

Fort Worth, TX (KFWD), launched 00:00Z, 6.2 hours before the alert went out and 269 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, Fort Worth, TX at 00:00Z on 2021-03-23Temperature 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, Fort Worth, TX at 00:00Z on 2021-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 404 square meters per square second.1939587897Sfc1 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
679 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
404 m²/s²
0-3 km storm-relative helicity
672 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

008 
WWUS84 KOUN 230613
SPSOUN

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
113 AM CDT Tue Mar 23 2021
 
OKZ025-028-029-230645-
Oklahoma OK-Cleveland OK-McClain OK-
113 AM CDT Tue Mar 23 2021

...SIGNIFICANT WEATHER ADVISORY FOR southeastern Oklahoma...northern
Cleveland and northwestern McClain Counties Until 145 AM CDT...

AT 112 AM CDT, a strong thunderstorm was located near Goldsby, moving
northeast at 45 MPH.

HAZARDS INCLUDE...
Hail up to one-half inch diameter...
Wind gusts 40 to 50 MPH...
Minor flooding in areas of poor drainage... 

Locations impacted include...
Oklahoma City, Norman, Moore, Midwest City, Del City, Newcastle,
Choctaw, Noble, Goldsby, Valley Brook, Washington, Cole, Tinker Air
Force Base, Stanley Draper Lake, Newalla, western Lake Thunderbird,
Forest Park, Smith Village and The Capitol.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Severe weather is not expected and no warnings are anticipated at
this time.

&&

LAT...LON 3503 9743 3505 9762 3552 9750 3543 9714
      3542 9714
TIME...MOT...LOC 0612Z 210DEG 38KT 3512 9749 

$$

11

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 22, 7:00 PM CDTSpecial Weather StatementOUNLove45 min
Mar 22, 8:36 PM CDTSpecial Weather StatementOUNSeminole24 min
Mar 22, 8:40 PM CDTSpecial Weather StatementOUNPontotoc35 min
Mar 22, 8:56 PM CDTAreal Flood AdvisoryOUNCleveland, Garvin, McClain, Pottawatomie6 hr
Mar 22, 9:04 PM CDTSpecial Weather StatementOUNTillman41 min
Mar 22, 9:44 PM CDTRiver Flood AdvisoryOUNPottawatomie, Seminole12 hr
Mar 22, 9:55 PM CDTSpecial Weather StatementOUNBryan50 min
Mar 22, 11:08 PM CDTSpecial Weather StatementOUNCotton37 min
Mar 23, 1:37 AM CDTSpecial Weather StatementOUNLincoln, Oklahoma23 min
Mar 23, 2:00 AM CDTSpecial Weather StatementOUNLincoln30 min
Mar 23, 2:24 AM CDTSpecial Weather StatementOUNLincoln, Payne36 min
Mar 23, 2:58 AM CDTSpecial Weather StatementOUNLincoln32 min
Mar 23, 3:00 AM CDTSpecial Weather StatementOUNPayne30 min
Mar 23, 9:09 AM CDTRiver Flood WarningOUNMajor, Woods, Woodward23 hr
Mar 23, 9:23 AM CDTRiver Flood WarningOUNPottawatomie, Seminole6 hr
Mar 23, 9:27 AM CDTRiver Flood AdvisoryOUNKingfisher, Logan23 hr
Mar 23, 9:28 AM CDTRiver Flood AdvisoryOUNGrant, Kay, Noble23 hr
Mar 23, 9:29 AM CDTRiver Flood AdvisoryOUNAlfalfa, Woods28 hr
Mar 22, 8:02 PM CDTSpecial Weather StatementOUNFoard43 min
Mar 22, 10:29 PM CDTSpecial Weather StatementOUNWichita31 min

Nearby

Special Weather Statements in Oklahoma, 2021Every special weather statement 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; radar from the NEXRAD Level II archive.