Alert archive / Arkansas / Special Weather Statements in 2017

Special Weather Statement, NWS Tulsa, OK

April 10, 2017Madison County, Arkansas

NWS Tulsa, OK issued this special weather statement at Apr 10, 2017, 4:15 PM CDT for Madison County, Arkansas. It was in force for 30 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 10, 2017, 4:15 PM CDT (21:15 UTC)
Expired: Apr 10, 2017, 4:45 PM CDT
In force: 30 min
Issued by: NWS Tulsa, OK

County Madison County, AR

The radar

The Western Arkansas radar (KSRX), 109 km from the middle of the area, began a volume at 21:15 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, 9.3 hours before the alert went out and 105 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: 916 J/kg
Mixed-layer CIN: -152 J/kg
Mixed-layer LCL: 793 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 306 m²/s²
0-3 km storm-relative helicity: 327 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.4

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 10, 2:26 PM CDT, 1 hour 49 minutes earlier.

Area forecast discussion, Apr 10, 2:26 PM CDT, 1 hour 49 minutes before

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Hazardous weather outlook, Apr 10, 12:40 PM CDT, 3 hours 35 minutes before

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In the hours before

Special weather statement, Apr 10, 1:25 PM CDT, 2 hours 50 minutes before

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Special weather statement, Apr 10, 2:30 PM CDT, 1 hour 45 minutes before

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Special weather statement, Apr 10, 2:53 PM CDT, 1 hour 22 minutes before

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Special weather statement, Apr 10, 3:35 PM CDT, 40 minutes before

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Special weather statement, Apr 10, 3:38 PM CDT, 37 minutes before

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Special weather statement, Apr 10, 4:15 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Tulsa OK
415 PM CDT MON APR 10 2017

ARZ011-102145-
Madison AR-
415 PM CDT MON APR 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL MADISON COUNTY UNTIL
445 PM CDT...

At 415 PM CDT, a strong thunderstorm was located 5 miles southwest of
Kingston, moving east at 25 mph.

Dime size hail will be possible with this storm.

Locations in or near the path include...
Kingston...                       Weathers...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3596 9347 3595 9347 3595 9349 3593 9349
      3592 9351 3589 9351 3589 9366 3607 9369
      3612 9348 3608 9348 3608 9345 3597 9345
TIME...MOT...LOC 2115Z 260DEG 23KT 3599 9359

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 1:25 PM CDT	Special Weather Statement	TSA	Pushmataha	35 min
Apr 10, 2:30 PM CDT	Special Weather Statement	TSA	Choctaw	30 min
Apr 10, 2:53 PM CDT	Special Weather Statement	TSA	Choctaw	37 min
Apr 10, 3:35 PM CDT	Special Weather Statement	TSA	Choctaw	25 min
Apr 10, 3:38 PM CDT	Special Weather Statement	TSA	Madison	37 min

Nearby

Special Weather Statements in Arkansas, 2017 Every special weather statement 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.