Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 718, NWS Norman, OK

July 6, 20194 counties in Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jul 6, 2019, 12:07 AM CDT for 4 counties in Oklahoma. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 6, 2019, 12:07 AM CDT (05:07 UTC)
Expired
Jul 6, 2019, 12:45 AM CDT
In force
38 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Alfalfa County, OK, Grant County, OK, Woods County, OK, Woodward County, OK

The radar

The Vance AFB radar (KVNX), 39 km from the middle of the area, began a volume at 05:07 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

Dodge City, (KDDC), launched 00:00Z, 5.1 hours before the alert went out and 170 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, Dodge City, at 00:00Z on 2019-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2071 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, Dodge City, at 00:00Z on 2019-07-06The 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
2071 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
2047 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
219 m²/s²
Significant tornado parameter
0.0
Supercell composite
8.4

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 10:57 PM CDTSevere Thunderstorm WarningOUNHarper48 min
Jul 5, 11:22 PM CDTSpecial Weather StatementOUNHarper38 min
Jul 5, 11:42 PM CDTSevere Thunderstorm WarningOUNHarper, Woods, Woodward63 min
Jul 5, 11:59 PM CDTSpecial Weather StatementOUNAlfalfa, Woods31 min
Jul 6, 12:43 AM CDTSevere Thunderstorm WarningOUNAlfalfa, Garfield, Grant, Major, Woods47 min
Jul 6, 12:49 AM CDTSpecial Weather StatementOUNWoodward26 min
Jul 6, 12:56 AM CDTSpecial Weather StatementOUNBeckham, Roger Mills34 min
Jul 6, 12:59 AM CDTSpecial Weather StatementOUNGarfield, Grant31 min
Jul 6, 1:16 AM CDTSpecial Weather StatementOUNBeckham, Dewey44 min
Jul 6, 1:32 AM CDTSpecial Weather StatementOUNMajor28 min
Jul 6, 1:38 AM CDTSpecial Weather StatementOUNGarfield, Kay37 min
Jul 6, 1:54 AM CDTSpecial Weather StatementOUNHarmon51 min
Jul 6, 1:55 AM CDTSpecial Weather StatementOUNHarmon35 min
Jul 6, 1:57 AM CDTSpecial Weather StatementOUNBeckham, Blaine, Custer, Dewey, Greer, Washita48 min
Jul 6, 2:42 AM CDTSpecial Weather StatementOUNBlaine, Kiowa, Washita48 min
Jul 6, 3:22 AM CDTSpecial Weather StatementOUNComanche, Tillman38 min
Jul 6, 12:41 PM CDTSpecial Weather StatementOUNJohnston34 min
Jul 6, 1:10 PM CDTSpecial Weather StatementOUNPontotoc35 min
Jul 6, 1:43 PM CDTSpecial Weather StatementOUNJefferson32 min
Jul 6, 1:48 PM CDTSpecial Weather StatementOUNPontotoc27 min
Jul 6, 1:52 PM CDTSpecial Weather StatementOUNGarvin38 min
Jul 6, 1:56 PM CDTSevere Thunderstorm WarningOUNGarvin22 min
Jul 6, 2:08 PM CDTSpecial Weather StatementOUNLove37 min
Jul 6, 2:10 PM CDTSpecial Weather StatementOUNSeminole35 min
Jul 6, 2:16 PM CDTSevere Thunderstorm WarningOUNHughes, Seminole29 min
Jul 6, 2:25 PM CDTSpecial Weather StatementOUNMarshall35 min
Jul 6, 2:27 PM CDTSpecial Weather StatementOUNMurray33 min
Jul 6, 2:40 PM CDTSpecial Weather StatementOUNCarter35 min
Jul 6, 2:48 PM CDTSpecial Weather StatementOUNCoal, Hughes27 min
Jul 6, 3:12 PM CDTSpecial Weather StatementOUNJohnston48 min
Jul 6, 3:29 PM CDTSpecial Weather StatementOUNAtoka, Bryan31 min
Jul 6, 3:33 PM CDTAreal Flood AdvisoryOUNCarter, Johnston, Love, Marshall3 hr
Jul 6, 3:53 PM CDTAreal Flood AdvisoryOUNAtoka, Bryan3 hr
Jul 6, 4:09 PM CDTSpecial Weather StatementOUNAtoka, Bryan51 min
Jul 6, 4:19 PM CDTFlash Flood WarningOUNAtoka3 hr
Jul 6, 5:01 PM CDTSpecial Weather StatementOUNBryan29 min
Jul 6, 6:14 PM CDTSpecial Weather StatementOUNKay31 min
Jul 6, 6:41 PM CDTAreal Flood AdvisoryOUNKay3 hr
Jul 6, 2:20 PM CDTSpecial Weather StatementOUNClay25 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2019Every severe thunderstorm warning in 2019

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.