Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 251, NWS Tulsa, OK

July 10, 2020Latimer County, LeFlore County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jul 10, 2020, 1:46 PM CDT for Latimer County, LeFlore County, Oklahoma. It was in force for 42 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 10, 2020, 1:46 PM CDT (18:46 UTC)
Expired: Jul 10, 2020, 2:28 PM CDT
In force: 42 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Latimer County, OK, LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 72 km from the middle of the area, began a volume at 18:45 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

Norman, OK (KOUN), launched 12:00Z, 6.8 hours before the alert went out and 224 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 901 J/kg
Mixed-layer CIN: -265 J/kg
Mixed-layer LCL: 1331 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 105 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 Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 10, 12:28 PM CDT, 1 hour 18 minutes earlier.

Area forecast discussion, Jul 10, 12:28 PM CDT, 1 hour 18 minutes before

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Hazardous weather outlook, Jul 10, 1:00 PM CDT, 46 minutes before

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In the hours before

Special weather statement, Jul 10, 11:02 AM CDT, 2 hours 44 minutes before

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Special weather statement, Jul 10, 11:07 AM CDT, 2 hours 39 minutes before

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Special weather statement, Jul 10, 11:40 AM CDT, 2 hours 6 minutes before

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Special weather statement, Jul 10, 12:43 PM CDT, 1 hour 3 minutes before

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Special weather statement, Jul 10, 1:16 PM CDT, 30 minutes before

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Special weather statement, Jul 10, 1:38 PM CDT, 8 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 10:41 AM CDT	Special Weather Statement	TSA	Rogers	34 min
Jul 10, 11:00 AM CDT	Areal Flood Advisory	TSA	Creek, Tulsa, Wagoner	3 hr
Jul 10, 11:02 AM CDT	Special Weather Statement	TSA	Tulsa	28 min
Jul 10, 11:07 AM CDT	Special Weather Statement	TSA	Okfuskee	38 min
Jul 10, 11:40 AM CDT	Special Weather Statement	TSA	Wagoner	35 min
Jul 10, 12:43 PM CDT	Special Weather Statement	TSA	Haskell, Muskogee	32 min
Jul 10, 1:16 PM CDT	Special Weather Statement	TSA	Haskell, LeFlore	59 min
Jul 10, 1:38 PM CDT	Special Weather Statement	TSA	Pittsburg	37 min
Jul 10, 2:02 PM CDT	Special Weather Statement	TSA	Pushmataha	43 min
Jul 10, 2:28 PM CDT	Special Weather Statement	TSA	LeFlore	62 min
Jul 10, 2:38 PM CDT	Special Weather Statement	TSA	Pushmataha	37 min
Jul 10, 2:48 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	42 min
Jul 10, 3:15 PM CDT	Special Weather Statement	TSA	Pushmataha	30 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2020 Every severe thunderstorm warning in 2020

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.