Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 151, NWS Norman, OK

May 3, 2021Carter County, Johnston County, Murray County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 3, 2021, 6:38 PM CDT for Carter County, Johnston County, Murray County, Oklahoma. It was in force for 37 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
May 3, 2021, 6:38 PM CDT (23:38 UTC)
Expired
May 3, 2021, 7:15 PM CDT
In force
37 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Carter County, OK, Johnston County, OK, Murray County, OK

The radar

The Norman radar (KTLX), 128 km from the middle of the area, began a volume at 23:41 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 3, 3:48 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.6 hours before the alert went out and 119 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 12:00Z on 2021-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 993 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2021-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 square meters per square second.193958Sfc1 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
993 J/kg
Mixed-layer CIN
-487 J/kg
Mixed-layer LCL
923 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

073 
WUUS54 KOUN 032338
SVROUN
OKC019-069-099-040015-
/O.NEW.KOUN.SV.W.0151.210503T2338Z-210504T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
638 PM CDT Mon May 3 2021

The National Weather Service in Norman has issued a

* Severe Thunderstorm Warning for...
  Southwestern Johnston County in southeastern Oklahoma...
  Southeastern Carter County in southern Oklahoma...
  Southeastern Murray County in southern Oklahoma...

* Until 715 PM CDT.

* At 638 PM CDT, a severe thunderstorm was located near Dickson,
  moving northeast at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Ardmore, Tishomingo, Dickson, Mannsville, Ravia, Mill Creek and
  Gene Autry.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3422 9714 3442 9681 3424 9664 3417 9691
      3417 9697 3415 9697 3412 9710
TIME...MOT...LOC 2338Z 226DEG 21KT 3420 9704 

HAIL...1.00IN
WIND...60MPH
 
$$

Mahale
1 follow-up statement
116 
WWUS54 KOUN 032353
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
653 PM CDT Mon May 3 2021

OKC019-069-099-040015-
/O.CON.KOUN.SV.W.0151.000000T0000Z-210504T0015Z/
Johnston OK-Carter OK-Murray OK-
653 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR WEST CENTRAL JOHNSTON...EAST CENTRAL CARTER AND SOUTHEASTERN
MURRAY COUNTIES...

At 653 PM CDT, a severe thunderstorm was located 5 miles southwest of
Mill Creek, moving northeast at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Tishomingo, Ravia, Mill Creek and Gene Autry. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3423 9712 3442 9681 3424 9664 3423 9668
TIME...MOT...LOC 2353Z 225DEG 28KT 3433 9688 

HAIL...1.00IN
WIND...60MPH
 
$$

Mahale

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 4:56 PM CDTSpecial Weather StatementOUNHarper49 min
May 3, 5:05 PM CDTSpecial Weather StatementOUNCarter25 min
May 3, 5:09 PM CDTSevere Thunderstorm WarningOUNCarter, Johnston, Love, Murray51 min
May 3, 5:24 PM CDTSevere Thunderstorm WarningOUNCarter, Johnston, Murray51 min
May 3, 5:49 PM CDTSevere Thunderstorm WarningOUNGarvin, Murray26 min
May 3, 5:50 PM CDTSpecial Weather StatementOUNHarper25 min
May 3, 5:53 PM CDTSevere Thunderstorm WarningOUNCarter, Johnston, Murray67 min
May 3, 6:00 PM CDTAreal Flood AdvisoryOUNCarter, Garvin, Johnston, Love, Murray, Pontotoc5 hr
May 3, 6:02 PM CDTSevere Thunderstorm WarningOUNJohnston, Murray, Pontotoc58 min
May 3, 6:09 PM CDTSpecial Weather StatementOUNLove36 min
May 3, 6:12 PM CDTSevere Thunderstorm WarningOUNGarvin, McClain, Murray33 min
May 3, 6:19 PM CDTSevere Thunderstorm WarningOUNLove26 min
May 3, 6:25 PM CDTSpecial Weather StatementOUNHughes35 min
May 3, 6:33 PM CDTSevere Thunderstorm WarningOUNCoal, Johnston, Pontotoc42 min
May 3, 6:35 PM CDTSevere Thunderstorm WarningOUNCoal, Hughes, Pontotoc40 min
May 3, 6:39 PM CDTSpecial Weather StatementOUNJohnston36 min
May 3, 6:44 PM CDTSevere Thunderstorm WarningOUNCarter, Love, Marshall8 min
May 3, 6:50 PM CDTFlash Flood WarningOUNCarter, Murray3 hr
May 3, 6:56 PM CDTSevere Thunderstorm WarningOUNCarter, Johnston, Murray, Pontotoc49 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2021Every severe thunderstorm warning 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.