Alert archive / Oklahoma / Special Weather Statements in 2020

Special Weather Statement, NWS Tulsa, OK

April 11, 2020Rogers County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Apr 11, 2020, 11:39 PM CDT for Rogers County, Oklahoma. It was in force for 36 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: Apr 11, 2020, 11:39 PM CDT (04:39 UTC)
Expired: Apr 12, 2020, 12:15 AM CDT
In force: 36 min
Issued by: NWS Tulsa, OK

County Rogers County, OK

The radar

The Tulsa radar (KINX), 37 km from the middle of the area, began a volume at 04:44 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

Springfield, MO (KSGF), launched 00:00Z, 4.7 hours before the alert went out and 150 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1243 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 320 m²/s²
0-3 km storm-relative helicity: 341 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 11, 9:23 PM CDT, 2 hours 16 minutes earlier.

Area forecast discussion, Apr 11, 9:23 PM CDT, 2 hours 16 minutes before

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Hazardous weather outlook, Apr 11, 4:47 PM CDT, 6 hours 52 minutes before

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In the hours before

Special weather statement, Apr 11, 10:39 PM CDT, 1 hour before

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Special weather statement, Apr 11, 11:16 PM CDT, 23 minutes before

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Special weather statement, Apr 11, 11:36 PM CDT, 3 minutes before

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Special weather statement, Apr 11, 11:39 PM CDT, 0 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
Apr 11, 10:39 PM CDT	Special Weather Statement	TSA	Tulsa	51 min
Apr 11, 11:16 PM CDT	Special Weather Statement	TSA	Okfuskee	29 min
Apr 11, 11:36 PM CDT	Special Weather Statement	TSA	Okfuskee	39 min
Apr 11, 11:58 PM CDT	Areal Flood Advisory	TSA	Tulsa	2 hr
Apr 12, 3:34 AM CDT	Wind Advisory	TSA	Adair, Cherokee, Craig, Creek, Delaware, Haskell and 13 more	19 hr
Apr 12, 8:01 AM CDT	Special Weather Statement	TSA	Creek	44 min
Apr 12, 8:07 AM CDT	River Flood Warning	TSA	LeFlore	49 hr
Apr 12, 8:09 AM CDT	River Flood Advisory	TSA	Cherokee	49 hr
Apr 12, 9:57 AM CDT	Special Weather Statement	TSA	Nowata	33 min
Apr 12, 1:19 PM CDT	Freeze Warning	TSA	Adair, Cherokee, Craig, Creek, Delaware, Mayes and 10 more	20 hr
Apr 12, 2:09 PM CDT	Special Weather Statement	TSA	Okmulgee	36 min
Apr 12, 2:52 PM CDT	Special Weather Statement	TSA	McIntosh	23 min
Apr 12, 3:19 PM CDT	Special Weather Statement	TSA	Rogers	26 min
Apr 12, 3:33 PM CDT	Special Weather Statement	TSA	Muskogee	27 min
Apr 12, 3:48 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Haskell, Muskogee, Sequoyah	42 min
Apr 12, 3:56 PM CDT	Special Weather Statement	TSA	Haskell	34 min
Apr 12, 4:08 PM CDT	Special Weather Statement	TSA	Choctaw	67 min
Apr 12, 4:25 PM CDT	Special Weather Statement	TSA	Haskell, Latimer	65 min
Apr 12, 4:36 PM CDT	Special Weather Statement	TSA	Adair	24 min
Apr 12, 4:48 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg	11 min
Apr 12, 4:53 PM CDT	Areal Flood Advisory	TSA	Haskell, Latimer, LeFlore, Sequoyah	3 hr
Apr 12, 5:00 PM CDT	Special Weather Statement	TSA	LeFlore	30 min
Apr 12, 5:31 PM CDT	Special Weather Statement	TSA	LeFlore	29 min
Apr 12, 6:00 PM CDT	Special Weather Statement	TSA	Latimer	30 min
Apr 12, 4:58 PM CDT	Special Weather Statement	TSA	Crawford, Washington	32 min
Apr 12, 5:18 PM CDT	Special Weather Statement	TSA	Crawford, Franklin, Sebastian, Washington	42 min
Apr 12, 5:44 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Sebastian	46 min
Apr 12, 6:18 PM CDT	Special Weather Statement	TSA	Carroll	27 min
Apr 12, 6:54 PM CDT	Areal Flood Advisory	TSA	Carroll	2 hr

Nearby

Special Weather Statements in Oklahoma, 2020 Every special weather statement 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.