Alert archive / North Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Greenville-Spartanburg, SC

July 11, 2021Iredell County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Jul 11, 2021, 2:26 PM EDT for Iredell County, North Carolina. It was in force for 34 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: Jul 11, 2021, 2:26 PM EDT (18:26 UTC)
Expired: Jul 11, 2021, 3:00 PM EDT
In force: 34 min
Issued by: NWS Greenville-Spartanburg, SC

County Iredell County, NC

The radar

The Roanoke radar (KFCX), 125 km from the middle of the area, began a volume at 18:28 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, 6.4 hours before the alert went out and 85 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: 536 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 923 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 52 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 Greenville-Spartanburg, SC wrote its last area forecast discussion before this special weather statement went out at Jul 11, 1:57 PM EDT, 29 minutes earlier.

Area forecast discussion, Jul 11, 1:57 PM EDT, 29 minutes before

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Hazardous weather outlook, Jul 11, 5:11 AM EDT, 9 hours 15 minutes before

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
511 AM EDT Sun Jul 11 2021

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-120915-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Avery-Alexander-
Iredell-Davie-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Catawba-
Rowan-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-
Henderson-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union NC-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Greater Rutherford-Polk Mountains-Eastern Polk-Oconee Mountains-
Pickens Mountains-Greenville Mountains-Greater Oconee-
Greater Pickens-Greater Greenville-Spartanburg-Cherokee-York-
Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood-
511 AM EDT Sun Jul 11 2021

This Hazardous Weather Outlook is for northeast Georgia, western
North Carolina and upstate South Carolina.

.DAY ONE...Today and tonight.

Thunderstorms are expected to develop again this afternoon and
evening across the area. Storms should be numerous across the
mountains, the western part of the Upstate, and northeast Georgia.
Scattered storms are expected over the foothills and Piedmont of the
Carolinas. Frequent cloud-to-ground lightning and heavy downpours
are the main threats. One or two of the storms could become strong
enough to produce damaging wind gusts and large hail. Localized
flooding could happen where storms persist for more than an hour. The
thunderstorms should diminish by late evening.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

PM

In the hours before

Special weather statement, Jul 11, 2:26 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 8:41 PM EDT	Special Weather Statement	GSP	Caldwell	34 min
Jul 11, 2:53 PM EDT	Special Weather Statement	GSP	Buncombe	37 min
Jul 11, 3:35 PM EDT	Special Weather Statement	GSP	Henderson	25 min
Jul 11, 4:41 PM EDT	Special Weather Statement	GSP	Mecklenburg	34 min
Jul 11, 4:46 PM EDT	Special Weather Statement	GSP	Rutherford	29 min
Jul 11, 4:49 PM EDT	Special Weather Statement	GSP	Polk	26 min
Jul 11, 4:30 PM EDT	Special Weather Statement	GSP	Oconee	30 min
Jul 11, 5:13 PM EDT	Special Weather Statement	GSP	Anderson	32 min
Jul 11, 5:21 PM EDT	Special Weather Statement	GSP	Greenwood	24 min
Jul 11, 5:45 PM EDT	Special Weather Statement	GSP	Greenwood	30 min
Jul 11, 5:55 PM EDT	Special Weather Statement	GSP	Anderson	35 min
Jul 11, 6:00 PM EDT	Special Weather Statement	GSP	Stephens	30 min

Nearby

Special Weather Statements in North Carolina, 2021 Every special weather statement in 2021

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.