Alert archive / Arkansas / Special Weather Statements in 2017

Special Weather Statement, NWS Tulsa, OK

March 27, 2017Madison County, Arkansas

NWS Tulsa, OK issued this special weather statement at Mar 27, 2017, 5:12 AM CDT for Madison County, Arkansas. It was in force for 33 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
Mar 27, 2017, 5:12 AM CDT (10:12 UTC)
Expired
Mar 27, 2017, 5:45 AM CDT
In force
33 min
Issued by
NWS Tulsa, OK

County Madison County, AR

The radar

The Western Arkansas radar (KSRX), 71 km from the middle of the area, began a volume at 10:14 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, 10.2 hours before the alert went out and 126 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, Springfield, MO at 00:00Z on 2017-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Springfield, MO at 00:00Z on 2017-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1463 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Mar 27, 3:29 AM CDT, 1 hour 43 minutes earlier.

Area forecast discussion, Mar 27, 3:29 AM CDT, 1 hour 43 minutes before
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Hazardous weather outlook, Mar 27, 5:12 AM CDT, 0 minutes before
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In the hours before

Special weather statement, Mar 27, 3:21 AM CDT, 1 hour 51 minutes before
Special Weather Statement
National Weather Service Tulsa OK
321 AM CDT MON MAR 27 2017

ARZ001-010-OKZ063-069-270845-
Benton AR-Washington AR-Adair OK-Delaware OK-
321 AM CDT MON MAR 27 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN BENTON...
NORTHWESTERN WASHINGTON...SOUTHEASTERN DELAWARE AND NORTHWESTERN
ADAIR COUNTIES UNTIL 345 AM CDT...

At 321 AM CDT, a strong thunderstorm was located over West Siloam
Springs, moving northeast at 50 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations in or near the path include...
Siloam Springs...                 Gentry...
Tontitown...                      Decatur...
West Siloam Springs...            Highfill...
Watts...                          Springtown...
Lake Francis...                   Fairmount...
Ballard...                        Gallitin...
Rocky Comfort...                  Natural Falls State Park...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3639 9439 3617 9424 3600 9474 3612 9480
      3616 9480 3616 9482
TIME...MOT...LOC 0821Z 243DEG 45KT 3619 9459
Special weather statement, Mar 27, 3:39 AM CDT, 1 hour 33 minutes before
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Local storm report, Mar 27, 3:44 AM CDT, 1 hour 28 minutes before
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Special weather statement, Mar 27, 4:15 AM CDT, 57 minutes before
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Special weather statement, Mar 27, 4:46 AM CDT, 26 minutes before
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Special weather statement, Mar 27, 5:12 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Mar 26, 7:27 PM CDTSpecial Weather StatementTSAOkmulgee33 min
Mar 26, 7:38 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee, Okmulgee32 min
Mar 26, 7:52 PM CDTSpecial Weather StatementTSAMcIntosh23 min
Mar 26, 8:15 PM CDTSpecial Weather StatementTSAMcIntosh30 min
Mar 26, 8:20 PM CDTSpecial Weather StatementTSALatimer25 min
Mar 26, 8:29 PM CDTTornado WarningTSAPittsburg29 min
Mar 26, 8:35 PM CDTSevere Thunderstorm WarningTSAHaskell, Latimer, Pittsburg40 min
Mar 26, 8:40 PM CDTSpecial Weather StatementTSAMcIntosh35 min
Mar 26, 8:59 PM CDTSpecial Weather StatementTSAPittsburg46 min
Mar 26, 9:15 PM CDTSpecial Weather StatementTSALatimer30 min
Mar 26, 9:19 PM CDTSpecial Weather StatementTSACherokee41 min
Mar 26, 9:25 PM CDTSevere Thunderstorm WarningTSAOsage35 min
Mar 26, 9:41 PM CDTSpecial Weather StatementTSAHaskell49 min
Mar 26, 9:43 PM CDTSpecial Weather StatementTSATulsa32 min
Mar 26, 9:50 PM CDTSpecial Weather StatementTSAHaskell40 min
Mar 26, 9:55 PM CDTSpecial Weather StatementTSASequoyah35 min
Mar 26, 10:02 PM CDTSpecial Weather StatementTSAChoctaw43 min
Mar 26, 10:12 PM CDTSpecial Weather StatementTSAOsage33 min
Mar 26, 10:13 PM CDTSpecial Weather StatementTSAMayes, Rogers32 min
Mar 26, 10:20 PM CDTSevere Thunderstorm WarningTSALeFlore25 min
Mar 26, 10:30 PM CDTSpecial Weather StatementTSAOsage45 min
Mar 26, 11:23 PM CDTSpecial Weather StatementTSAOsage, Washington52 min
Mar 27, 12:11 AM CDTSpecial Weather StatementTSACraig, Nowata, Washington34 min
Mar 27, 12:49 AM CDTSpecial Weather StatementTSACraig, Nowata, Ottawa, Rogers, Washington26 min
Mar 27, 1:21 AM CDTSpecial Weather StatementTSACraig, Ottawa, Rogers24 min
Mar 27, 1:47 AM CDTSpecial Weather StatementTSAMayes28 min
Mar 27, 2:18 AM CDTSpecial Weather StatementTSADelaware42 min
Mar 27, 2:22 AM CDTSpecial Weather StatementTSACraig23 min
Mar 26, 10:08 PM CDTSpecial Weather StatementTSACrawford, Sebastian, Washington67 min
Mar 26, 10:44 PM CDTSevere Thunderstorm WarningTSAFranklin, Sebastian46 min
Mar 26, 10:53 PM CDTSpecial Weather StatementTSAMadison52 min
Mar 27, 3:21 AM CDTSpecial Weather StatementTSABenton24 min
Mar 27, 3:39 AM CDTSpecial Weather StatementTSABenton36 min
Mar 27, 4:15 AM CDTSpecial Weather StatementTSACrawford30 min
Mar 27, 4:46 AM CDTSpecial Weather StatementTSACrawford29 min
Mar 27, 5:41 AM CDTSpecial Weather StatementTSAFranklin34 min

Nearby

Special Weather Statements in Arkansas, 2017Every 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.