Alert archive / Arkansas / Special Weather Statements in 2012

Special Weather Statement, NWS Tulsa, OK

April 15, 2012Franklin County, Arkansas

NWS Tulsa, OK issued this special weather statement at Apr 15, 2012, 1:48 PM CDT for Franklin County, Arkansas. It was in force for 27 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 15, 2012, 1:48 PM CDT (18:48 UTC)
Expired: Apr 15, 2012, 2:15 PM CDT
In force: 27 min
Issued by: NWS Tulsa, OK

County Franklin County, AR

The radar

The Western Arkansas radar (KSRX), 57 km from the middle of the area, began a volume at 18:49 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 12:00Z, 6.8 hours before the alert went out and 136 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: 31 J/kg
Mixed-layer CIN: -142 J/kg
Mixed-layer LCL: 855 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 319 m²/s²
0-3 km storm-relative helicity: 381 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 15, 1:02 PM CDT, 46 minutes earlier.

Area forecast discussion, Apr 15, 1:02 PM CDT, 46 minutes before

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Hazardous weather outlook, Apr 15, 1:27 PM CDT, 21 minutes before

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In the hours before

Local storm report, Apr 15, 12:28 PM CDT, 1 hour 20 minutes before

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Special weather statement, Apr 15, 12:29 PM CDT, 1 hour 19 minutes before

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Local storm report, Apr 15, 12:42 PM CDT, 1 hour 6 minutes before

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Special weather statement, Apr 15, 1:04 PM CDT, 44 minutes before

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Special weather statement, Apr 15, 1:14 PM CDT, 34 minutes before

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Special weather statement, Apr 15, 1:48 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 15, 12:40 AM CDT	Wind Advisory	TSA	Creek, Okfuskee, Okmulgee, Pawnee, Tulsa, Washington	3 hr
Apr 15, 3:41 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	64 min
Apr 15, 4:43 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee	62 min
Apr 15, 5:05 AM CDT	Special Weather Statement	TSA	Creek	55 min
Apr 15, 5:30 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Nowata, Osage, Pawnee, Rogers, Tulsa and 1 more	60 min
Apr 15, 5:47 AM CDT	Special Weather Statement	TSA	Okfuskee, Okmulgee, Rogers, Tulsa	58 min
Apr 15, 5:51 AM CDT	Tornado Warning	TSA	Nowata, Osage, Rogers, Tulsa, Washington	24 min
Apr 15, 6:22 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Ottawa, Rogers	53 min
Apr 15, 6:41 AM CDT	Special Weather Statement	TSA	Mayes, Okmulgee, Wagoner	64 min
Apr 15, 6:43 AM CDT	Special Weather Statement	TSA	McIntosh, Pittsburg	62 min
Apr 15, 7:41 AM CDT	Special Weather Statement	TSA	Delaware	34 min
Apr 15, 7:44 AM CDT	Special Weather Statement	TSA	McIntosh, Muskogee, Pittsburg, Wagoner	31 min
Apr 15, 8:13 AM CDT	Special Weather Statement	TSA	Cherokee, Delaware, Muskogee	62 min
Apr 15, 8:14 AM CDT	Special Weather Statement	TSA	Haskell, Latimer, Pittsburg, Pushmataha, Sequoyah	61 min
Apr 15, 9:13 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Muskogee	62 min
Apr 15, 9:16 AM CDT	Tornado Warning	TSA	Adair, Cherokee	29 min
Apr 15, 9:42 AM CDT	Tornado Warning	TSA	Adair	33 min
Apr 15, 11:28 AM CDT	Special Weather Statement	TSA	LeFlore	62 min
Apr 15, 12:42 PM CDT	River Flood Warning	TSA	Rogers, Tulsa	7 hr
Apr 15, 10:13 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Washington	24 min
Apr 15, 12:25 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Madison, Washington	35 min
Apr 15, 12:29 PM CDT	Special Weather Statement	TSA	Crawford	31 min
Apr 15, 1:04 PM CDT	Special Weather Statement	TSA	Carroll	26 min
Apr 15, 1:14 PM CDT	Special Weather Statement	TSA	Washington	31 min
Apr 15, 1:19 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Washington	26 min
Apr 15, 1:53 PM CDT	Special Weather Statement	TSA	Carroll, Madison	52 min
Apr 15, 2:10 PM CDT	Special Weather Statement	TSA	Franklin	35 min
Apr 15, 2:32 PM CDT	Special Weather Statement	TSA	Carroll, Madison	43 min

Nearby

Special Weather Statements in Arkansas, 2012 Every special weather statement in 2012

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.