Alert archive / North Carolina / Special Weather Statements in 2011

Special Weather Statement, NWS Greenville-Spartanburg, SC

May 22, 2011Madison County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at May 22, 2011, 4:39 PM EDT for Madison County, North Carolina. 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: May 22, 2011, 4:39 PM EDT (20:39 UTC)
Expired: May 22, 2011, 5:15 PM EDT
In force: 36 min
Issued by: NWS Greenville-Spartanburg, SC

County Madison County, NC

The radar

The Knoxville radar (KMRX), 65 km from the middle of the area, began a volume at 20:41 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.7 hours before the alert went out and 267 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: 1494 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 114 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 Greenville-Spartanburg, SC wrote its last area forecast discussion before this special weather statement went out at May 22, 2:04 PM EDT, 2 hours 35 minutes earlier.

Area forecast discussion, May 22, 2:04 PM EDT, 2 hours 35 minutes before

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Hazardous weather outlook, May 22, 12:43 PM EDT, 3 hours 56 minutes before

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In the hours before

Special weather statement, May 22, 4:39 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
439 PM EDT SUN MAY 22 2011

NCZ048-222115-
MADISON-
439 PM EDT SUN MAY 22 2011

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN MADISON COUNTY
THROUGH 515 PM EDT...

AT 435 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES SOUTHWEST OF SPRING CREEK...OR 12 MILES
WEST OF MARSHALL...MOVING NORTHEAST AT 20 MPH.

THIS STORM WILL BE NEAR...
  HOT SPRINGS...
  MARSHALL...

PEA SIZE HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3580 8253 3571 8291 3575 8292 3574 8295
      3575 8296 3578 8295 3580 8297 3585 8292
      3597 8276

MCAVOY

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 22, 5:13 PM EDT	Severe Thunderstorm Warning	GSP	Madison	62 min
May 22, 6:03 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Madison, Yancey	57 min
May 22, 6:13 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Madison	62 min
May 22, 6:15 PM EDT	Special Weather Statement	GSP	Macon	30 min
May 22, 6:20 PM EDT	Special Weather Statement	GSP	Avery	25 min
May 22, 6:29 PM EDT	Special Weather Statement	GSP	Buncombe	46 min
May 22, 6:46 PM EDT	Severe Thunderstorm Warning	GSP	Avery, Caldwell	44 min
May 22, 7:02 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Madison, Yancey	58 min
May 22, 7:10 PM EDT	Special Weather Statement	GSP	Transylvania	50 min
May 22, 7:24 PM EDT	Special Weather Statement	GSP	Madison	2 hr
May 22, 7:31 PM EDT	Special Weather Statement	GSP	Buncombe	44 min
May 22, 7:41 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Transylvania	43 min
May 22, 7:47 PM EDT	Severe Thunderstorm Warning	GSP	Burke, McDowell, Yancey	58 min

Nearby

Special Weather Statements in North Carolina, 2011 Every special weather statement in 2011

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.