Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 883, NWS Norman, OK

September 26, 2019Noble County, Payne County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Sep 26, 2019, 1:06 AM CDT for Noble County, Payne County, Oklahoma. It was in force for 24 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
Sep 26, 2019, 1:06 AM CDT (06:06 UTC)
Expired
Sep 26, 2019, 1:30 AM CDT
In force
24 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Noble County, OK, Payne County, OK

The radar

The Norman radar (KTLX), 101 km from the middle of the area, began a volume at 06:10 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
Sep 25, 9:30 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 6.1 hours before the alert went out and 116 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 2019-09-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2544 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 00:00Z on 2019-09-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 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
2544 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1570 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.5
Supercell composite
8.8

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 Sep 25, 10:47 PM CDT, 2 hours 19 minutes earlier.

Area forecast discussion, Sep 25, 10:47 PM CDT, 2 hours 19 minutes before
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Hazardous weather outlook, Sep 25, 8:44 PM CDT, 4 hours 22 minutes before
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In the hours before

Special weather statement, Sep 25, 10:15 PM CDT, 2 hours 51 minutes before
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Special weather statement, Sep 25, 10:40 PM CDT, 2 hours 26 minutes before
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Special weather statement, Sep 25, 11:22 PM CDT, 1 hour 44 minutes before
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Special weather statement, Sep 25, 11:45 PM CDT, 1 hour 21 minutes before
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Special weather statement, Sep 26, 12:16 AM CDT, 50 minutes before
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Special weather statement, Sep 26, 12:46 AM CDT, 20 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 25, 7:14 PM CDTSpecial Weather StatementOUNAlfalfa31 min
Sep 25, 7:18 PM CDTSevere Thunderstorm WarningOUNGarfield32 min
Sep 25, 7:44 PM CDTSpecial Weather StatementOUNAlfalfa31 min
Sep 25, 8:15 PM CDTSpecial Weather StatementOUNGarfield30 min
Sep 25, 8:20 PM CDTSevere Thunderstorm WarningOUNGarfield40 min
Sep 25, 8:32 PM CDTSpecial Weather StatementOUNMajor28 min
Sep 25, 8:52 PM CDTSpecial Weather StatementOUNGarfield23 min
Sep 25, 8:59 PM CDTSevere Thunderstorm WarningOUNGarfield, Noble46 min
Sep 25, 9:44 PM CDTSpecial Weather StatementOUNNoble31 min
Sep 25, 10:15 PM CDTSpecial Weather StatementOUNKay30 min
Sep 25, 10:40 PM CDTSpecial Weather StatementOUNKay35 min
Sep 25, 10:49 PM CDTSevere Thunderstorm WarningOUNGrant, Kay19 min
Sep 25, 11:22 PM CDTSpecial Weather StatementOUNKay, Noble23 min
Sep 25, 11:41 PM CDTAreal Flood AdvisoryOUNGrant, Kay3 hr
Sep 25, 11:45 PM CDTSpecial Weather StatementOUNKay, Noble30 min
Sep 26, 12:16 AM CDTSpecial Weather StatementOUNNoble29 min
Sep 26, 12:30 AM CDTAreal Flood AdvisoryOUNNoble3 hr
Sep 26, 12:46 AM CDTSpecial Weather StatementOUNNoble, Payne29 min
Sep 26, 1:39 AM CDTSpecial Weather StatementOUNPayne36 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.