Alert archive / North Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 135, NWS Greenville-Spartanburg, SC

July 1, 2017Alexander County, Davie County, Iredell County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 1, 2017, 1:44 PM EDT for Alexander County, Davie County, Iredell County, North Carolina. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 1, 2017, 1:44 PM EDT (17:44 UTC)
Expired
Jul 1, 2017, 2:45 PM EDT
In force
61 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Alexander County, NC, Davie County, NC, Iredell County, NC

The radar

The Roanoke radar (KFCX), 137 km from the middle of the area, began a volume at 17:47 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, 5.7 hours before the alert went out and 89 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, Greensboro/Hi Pt, NC at 12:00Z on 2017-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 242 joules per kilogram.LCLLFCEL10008507005003002001001 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, Greensboro/Hi Pt, NC at 12:00Z on 2017-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.1939Sfc1 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
242 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
513 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
21 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 1, 11:07 AM EDT, 2 hours 37 minutes earlier.

Area forecast discussion, Jul 1, 11:07 AM EDT, 2 hours 37 minutes before
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Hazardous weather outlook, Jul 1, 5:13 AM EDT, 8 hours 31 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
513 AM EDT Sat Jul 1 2017

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-020915-
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-
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-Chester-Greenwood-
513 AM EDT Sat Jul 1 2017

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

.DAY ONE...Today and Tonight.

A moist and unstable airmass will persist across the region today. By
the afternoon...strong and deep thunderstorms will develop capable
of producing heavy rainfall leading to possible localized flooding.
In addition...some of the stronger storms could generate damaging
wind gusts.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

..Sunday...No hazardous weather is expected at this time.
..Monday...No hazardous weather is expected at this time.
..Tuesday...No hazardous weather is expected at this time.
..Wednesday...No hazardous weather is expected at this time.
..Thursday...No hazardous weather is expected at this time.
..Friday...No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

Krentz

In the hours before

Special weather statement, Jul 1, 1:29 PM EDT, 15 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 8:20 PM EDTSpecial Weather StatementGSPGaston25 min
Jun 30, 8:56 PM EDTSpecial Weather StatementGSPMecklenburg34 min
Jul 1, 1:29 PM EDTSpecial Weather StatementGSPAlexander, Davie91 min
Jul 1, 2:14 PM EDTSpecial Weather StatementGSPIredell61 min
Jul 1, 2:23 PM EDTSevere Thunderstorm WarningGSPDavie37 min
Jul 1, 2:41 PM EDTSpecial Weather StatementGSPLincoln34 min
Jul 1, 2:52 PM EDTSpecial Weather StatementGSPIredell23 min
Jul 1, 2:56 PM EDTSpecial Weather StatementGSPIredell19 min
Jul 1, 3:26 PM EDTSpecial Weather StatementGSPMecklenburg34 min
Jul 1, 3:32 PM EDTSevere Thunderstorm WarningGSPGaston, Lincoln, Mecklenburg43 min
Jul 1, 3:41 PM EDTSpecial Weather StatementGSPCaldwell34 min
Jul 1, 3:58 PM EDTSpecial Weather StatementGSPHenderson32 min
Jul 1, 4:05 PM EDTSpecial Weather StatementGSPMadison25 min
Jul 1, 4:07 PM EDTSpecial Weather StatementGSPAlexander, Iredell23 min
Jul 1, 4:16 PM EDTSpecial Weather StatementGSPMecklenburg29 min
Jul 1, 4:29 PM EDTSpecial Weather StatementGSPGaston31 min
Jul 1, 4:34 PM EDTSpecial Weather StatementGSPIredell26 min
Jul 1, 4:36 PM EDTSevere Thunderstorm WarningGSPGaston, Lincoln, Mecklenburg39 min
Jul 1, 4:41 PM EDTSpecial Weather StatementGSPPolk34 min
Jul 1, 4:47 PM EDTSevere Thunderstorm WarningGSPCleveland, Rutherford43 min
Jul 1, 4:51 PM EDTSevere Thunderstorm WarningGSPPolk, Rutherford39 min
Jul 1, 5:02 PM EDTSpecial Weather StatementGSPCatawba, Iredell28 min
Jul 1, 5:25 PM EDTSpecial Weather StatementGSPMecklenburg35 min
Jul 1, 5:26 PM EDTSpecial Weather StatementGSPUnion34 min
Jul 1, 5:40 PM EDTSpecial Weather StatementGSPBuncombe35 min
Jul 1, 5:49 PM EDTSpecial Weather StatementGSPUnion26 min
Jul 1, 6:18 PM EDTSpecial Weather StatementGSPUnion27 min
Jul 1, 6:20 PM EDTSpecial Weather StatementGSPJackson, Transylvania25 min
Jul 1, 6:44 PM EDTSpecial Weather StatementGSPTransylvania31 min
Jul 1, 6:46 PM EDTSevere Thunderstorm WarningGSPUnion44 min
Jul 1, 7:14 PM EDTSpecial Weather StatementGSPPolk31 min
Jul 1, 7:44 PM EDTSpecial Weather StatementGSPPolk31 min
Jul 1, 3:23 PM EDTSpecial Weather StatementGSPOconee37 min
Jul 1, 4:19 PM EDTSpecial Weather StatementGSPGreenville26 min
Jul 1, 5:29 PM EDTSevere Thunderstorm WarningGSPCherokee, Spartanburg46 min
Jul 1, 5:57 PM EDTSpecial Weather StatementGSPCherokee33 min
Jul 1, 6:30 PM EDTSpecial Weather StatementGSPUnion, York30 min
Jul 1, 6:59 PM EDTSpecial Weather StatementGSPChester, Union31 min
Jul 1, 7:29 PM EDTSpecial Weather StatementGSPChester31 min
Jul 1, 7:37 PM EDTSpecial Weather StatementGSPAbbeville, Anderson23 min
Jul 1, 7:53 PM EDTSpecial Weather StatementGSPChester37 min
Jul 1, 7:57 PM EDTSpecial Weather StatementGSPAbbeville, Anderson33 min
Jul 1, 3:12 PM EDTSpecial Weather StatementGSPHabersham33 min
Jul 1, 5:33 PM EDTSpecial Weather StatementGSPRabun27 min
Jul 1, 6:35 PM EDTSpecial Weather StatementGSPStephens25 min
Jul 1, 6:36 PM EDTSpecial Weather StatementGSPMadison24 min
Jul 1, 6:51 PM EDTSevere Thunderstorm WarningGSPElbert, Franklin, Hart39 min
Jul 1, 7:16 PM EDTSpecial Weather StatementGSPHart29 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2017Every severe thunderstorm warning 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.