Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 235, NWS Norman, OK

May 10, 2017Alfalfa County, Woods County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 10, 2017, 8:40 AM CDT for Alfalfa County, Woods County, Oklahoma. It was in force for 50 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
May 10, 2017, 8:40 AM CDT (13:40 UTC)
Expired
May 10, 2017, 9:30 AM CDT
In force
50 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Alfalfa County, OK, Woods County, OK

The radar

The Vance AFB radar (KVNX), 42 km from the middle of the area, began a volume at 13:43 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 12:00Z, 1.7 hours before the alert went out and 162 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 12:00Z on 2017-05-10Temperature 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, Dodge City, at 12:00Z on 2017-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.19395878Sfc1 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
1652 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
125 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 10, 5:47 AM CDT, 2 hours 53 minutes earlier.

Area forecast discussion, May 10, 5:47 AM CDT, 2 hours 53 minutes before
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Hazardous weather outlook, May 10, 5:12 AM CDT, 3 hours 28 minutes before
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In the hours before

Special weather statement, May 10, 6:26 AM CDT, 2 hours 14 minutes before
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Special weather statement, May 10, 7:01 AM CDT, 1 hour 39 minutes before
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Special weather statement, May 10, 7:30 AM CDT, 1 hour 10 minutes before
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Special weather statement, May 10, 8:08 AM CDT, 32 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 6:26 AM CDTSpecial Weather StatementOUNBeckham, Roger Mills34 min
May 10, 7:01 AM CDTSpecial Weather StatementOUNBeckham, Roger Mills29 min
May 10, 7:30 AM CDTSpecial Weather StatementOUNCuster, Dewey, Woodward45 min
May 10, 8:08 AM CDTSpecial Weather StatementOUNCuster, Dewey, Major, Woods, Woodward52 min
May 10, 8:48 AM CDTSpecial Weather StatementOUNBlaine, Major27 min
May 10, 9:16 AM CDTSpecial Weather StatementOUNGarfield, Grant, Kingfisher29 min
May 10, 9:28 AM CDTSpecial Weather StatementOUNAlfalfa32 min
May 10, 10:03 AM CDTSpecial Weather StatementOUNGarfield, Grant27 min
May 10, 10:04 AM CDTSpecial Weather StatementOUNRoger Mills26 min
May 10, 10:36 AM CDTSpecial Weather StatementOUNDewey24 min
May 10, 11:13 AM CDTSpecial Weather StatementOUNWoodward32 min
May 10, 11:53 AM CDTSevere Thunderstorm WarningOUNAlfalfa, Woods37 min
May 10, 1:29 PM CDTSpecial Weather StatementOUNMarshall31 min
May 10, 1:57 PM CDTSevere Thunderstorm WarningOUNAlfalfa, Garfield, Grant, Major48 min
May 10, 2:09 PM CDTSpecial Weather StatementOUNJohnston36 min
May 10, 2:24 PM CDTSevere Thunderstorm WarningOUNAlfalfa, Grant27 min
May 10, 2:34 PM CDTSpecial Weather StatementOUNCoal26 min
May 10, 2:45 PM CDTSpecial Weather StatementOUNAlfalfa30 min
May 10, 2:54 PM CDTSpecial Weather StatementOUNOklahoma36 min
May 10, 2:58 PM CDTSpecial Weather StatementOUNGarfield32 min
May 10, 3:08 PM CDTSevere Thunderstorm WarningOUNGarfield, Grant, Kay37 min
May 10, 3:24 PM CDTSevere Thunderstorm WarningOUNKay, Noble37 min
May 10, 3:37 PM CDTSevere Thunderstorm WarningOUNGrant, Kay23 min
May 10, 3:44 PM CDTSpecial Weather StatementOUNHughes16 min
May 10, 3:54 PM CDTSpecial Weather StatementOUNKay36 min
May 10, 4:01 PM CDTTornado WarningOUNJackson29 min
May 10, 4:17 PM CDTSpecial Weather StatementOUNKay28 min
May 10, 4:28 PM CDTSevere Thunderstorm WarningOUNHarmon, Jackson47 min
May 10, 4:59 PM CDTSevere Thunderstorm WarningOUNGreer, Jackson, Kiowa46 min
May 10, 5:14 PM CDTSevere Thunderstorm WarningOUNJackson, Kiowa, Tillman46 min
May 10, 5:42 PM CDTSevere Thunderstorm WarningOUNComanche, Jackson, Kiowa48 min
May 10, 5:44 PM CDTAreal Flood AdvisoryOUNJackson2 hr
May 10, 6:00 PM CDTSpecial Weather StatementOUNJackson30 min
May 10, 6:15 PM CDTSevere Thunderstorm WarningOUNHarmon45 min
May 10, 6:17 PM CDTSevere Thunderstorm WarningOUNCaddo, Comanche, Kiowa43 min
May 10, 6:20 PM CDTSevere Thunderstorm WarningOUNJackson55 min
May 10, 6:24 PM CDTSevere Thunderstorm WarningOUNBeckham, Greer, Harmon39 min
May 10, 6:30 PM CDTSpecial Weather StatementOUNJackson30 min
May 10, 6:38 PM CDTAreal Flood AdvisoryOUNJackson2 hr
May 10, 6:41 PM CDTAreal Flood AdvisoryOUNJackson, Kiowa3 hr
May 10, 6:54 PM CDTSevere Thunderstorm WarningOUNJackson, Tillman51 min
May 10, 6:56 PM CDTSevere Thunderstorm WarningOUNCaddo49 min
May 10, 6:57 PM CDTSpecial Weather StatementOUNGreer33 min
May 10, 5:49 PM CDTSpecial Weather StatementOUNHardeman26 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2017Every severe thunderstorm warning in 2017

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.