Alert archive / North Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 3, NWS Greenville-Spartanburg, SC

January 12, 20237 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jan 12, 2023, 1:44 PM EST for 7 counties in 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: Jan 12, 2023, 1:44 PM EST (18:44 UTC)
Expired: Jan 12, 2023, 2:45 PM EST
In force: 61 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

Counties Avery County, NC, Buncombe County, NC, Haywood County, NC, Madison County, NC, Mitchell County, NC, Swain County, NC, Yancey County, NC

The radar

The Knoxville radar (KMRX), 85 km from the middle of the area, began a volume at 18:47 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, 6.7 hours before the alert went out and 244 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: 893 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 183 m²/s²
0-3 km storm-relative helicity: 144 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 Jan 12, 12:48 PM EST, 56 minutes earlier.

Area forecast discussion, Jan 12, 12:48 PM EST, 56 minutes before

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Hazardous weather outlook, Jan 12, 3:50 AM EST, 9 hours 54 minutes before

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
350 AM EST Thu Jan 12 2023

GAZ010-017-018-026-028-029-NCZ035>037-053-056-057-059-062>065-
068>072-082-501>510-SCZ008>014-019-101>109-131000-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Alexander-Iredell-
Davie-Buncombe-Catawba-Rowan-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-
Cherokee-York-Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood-
Oconee Mountains-Pickens Mountains-Greenville Mountains-
Greater Oconee-Greater Pickens-Central Greenville-
Southern Greenville-Northern Spartanburg-Southern Spartanburg-
350 AM EST Thu Jan 12 2023

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

.DAY ONE...Today and tonight.

A strong cold front will bring some strong to severe storms to the
region this afternoon and evening. The main threats will be from
locally damaging wind gusts, along with isolated brief tornadoes.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS while following all local, state,
and CDC guidelines.

NCZ033-048>052-058-131000-
Avery-Madison-Yancey-Mitchell-Swain-Haywood-Graham-
350 AM EST Thu Jan 12 2023

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM EST
SATURDAY ABOVE 3500 FEET...
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM
EST SATURDAY BELOW 3500 FEET...

This Hazardous Weather Outlook is for western North Carolina.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Winter Weather Advisory.

A strong cold front will bring some strong to severe storms to the
region this afternoon and evening. The main threats will be from
locally damaging wind gusts, but an isolated brief tornado can't be
ruled out.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Winter Weather Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather and snow to the NWS while following all
local, state, and CDC guidelines.

In the hours before

Special weather statement, Jan 12, 12:50 PM EST, 54 minutes before

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Special weather statement, Jan 12, 1:31 PM EST, 13 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
131 PM EST Thu Jan 12 2023

NCZ048-051-052-058-059-062-121915-
Haywood NC-Graham NC-Swain NC-Madison NC-Northern Jackson NC-
Macon NC-
131 PM EST Thu Jan 12 2023

...Strong thunderstorms will impact portions of northwestern Macon,
northwestern Jackson, southwestern Madison, Swain, Graham and
northern Haywood Counties through 215 PM EST...

At 130 PM EST, Doppler radar was tracking strong thunderstorms along
a line extending from near Newport to 9 miles east of Gatlinburg to
near Andrews. Movement was east at 40 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Great Smoky Mountains National Park, Sylva, Bryson City,
Robbinsville, Waynesville, Cherokee, Cullowhee, Lake Junaluska,
Maggie Valley, Hot Springs and Balsam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3557 8366 3556 8350 3566 8335 3566 8330
      3576 8316 3578 8299 3588 8290 3594 8290
      3592 8282 3597 8278 3597 8267 3570 8280
      3568 8289 3563 8286 3524 8324 3520 8373
      3523 8369 3526 8379 3522 8396 3523 8399
TIME...MOT...LOC 1830Z 267DEG 33KT 3593 8320 3569 8333 3522 8379

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

LANE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 12, 3:40 AM EST	Winter Storm Warning	GSP	Avery, Graham, Haywood, Madison, Mitchell, Swain and 1 more	57 hr
Jan 12, 3:40 AM EST	Winter Weather Advisory	GSP	Avery, Buncombe, Graham, Haywood, Jackson, Macon and 4 more	57 hr
Jan 12, 12:50 PM EST	Special Weather Statement	GSP	Graham, Swain	40 min
Jan 12, 1:31 PM EST	Special Weather Statement	GSP	Graham, Haywood, Swain	44 min
Jan 12, 2:48 PM EST	Special Weather Statement	GSP	Avery, Mitchell, Yancey	42 min
Jan 12, 3:15 PM EST	Special Weather Statement	GSP	Avery, Burke, Caldwell, McDowell	30 min
Jan 12, 3:37 PM EST	Special Weather Statement	GSP	Buncombe	38 min
Jan 12, 3:59 PM EST	Special Weather Statement	GSP	Henderson	46 min
Jan 12, 4:03 PM EST	Special Weather Statement	GSP	Burke, McDowell	27 min
Jan 12, 4:21 PM EST	Severe Thunderstorm Warning	GSP	Buncombe, Henderson, Polk, Rutherford	24 min
Jan 12, 4:30 PM EST	Special Weather Statement	GSP	Burke, Caldwell	30 min
Jan 12, 4:37 PM EST	Severe Thunderstorm Warning	GSP	Alexander, Burke, Caldwell, Catawba	38 min
Jan 12, 4:47 PM EST	Special Weather Statement	GSP	Rutherford	43 min
Jan 12, 5:09 PM EST	Severe Thunderstorm Warning	GSP	Alexander, Catawba, Iredell	36 min
Jan 12, 5:10 PM EST	Severe Thunderstorm Warning	GSP	Cleveland, Polk, Rutherford	50 min
Jan 12, 5:19 PM EST	Severe Thunderstorm Warning	GSP	Catawba, Iredell, Lincoln	26 min
Jan 12, 5:32 PM EST	Severe Thunderstorm Warning	GSP	Cleveland, Gaston, Lincoln	58 min
Jan 12, 5:48 PM EST	Severe Thunderstorm Warning	GSP	Catawba, Iredell, Lincoln	42 min
Jan 12, 6:00 PM EST	Special Weather Statement	GSP	Davie	15 min
Jan 12, 6:10 PM EST	Tornado Warning	GSP	Gaston, Lincoln, Mecklenburg	35 min
Jan 12, 6:18 PM EST	Severe Thunderstorm Warning	GSP	Cabarrus, Catawba, Davie, Iredell, Rowan	42 min
Jan 12, 6:20 PM EST	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg	55 min
Jan 12, 6:28 PM EST	Severe Thunderstorm Warning	GSP	Cabarrus, Gaston, Mecklenburg	62 min
Jan 12, 6:58 PM EST	Severe Thunderstorm Warning	GSP	Rowan	32 min
Jan 12, 6:59 PM EST	Severe Thunderstorm Warning	GSP	Union	61 min
Jan 12, 3:25 PM EST	Severe Thunderstorm Warning	GSP	Oconee	50 min
Jan 12, 4:06 PM EST	Special Weather Statement	GSP	Pickens	24 min
Jan 12, 4:12 PM EST	Special Weather Statement	GSP	Oconee	33 min
Jan 12, 4:12 PM EST	Special Weather Statement	GSP	Spartanburg	33 min
Jan 12, 4:32 PM EST	Special Weather Statement	GSP	Greenville, Pickens	28 min
Jan 12, 4:39 PM EST	Severe Thunderstorm Warning	GSP	Anderson, Greenville, Pickens, Spartanburg	66 min
Jan 12, 5:16 PM EST	Special Weather Statement	GSP	Laurens	29 min
Jan 12, 5:27 PM EST	Special Weather Statement	GSP	Anderson	33 min
Jan 12, 5:39 PM EST	Tornado Warning	GSP	Laurens	15 min
Jan 12, 5:42 PM EST	Severe Thunderstorm Warning	GSP	Cherokee, Chester, Laurens, Spartanburg, Union, York	63 min
Jan 12, 5:51 PM EST	Special Weather Statement	GSP	Abbeville	24 min
Jan 12, 6:03 PM EST	Severe Thunderstorm Warning	GSP	Abbeville, Greenwood, Laurens	42 min
Jan 12, 6:20 PM EST	Tornado Warning	GSP	Abbeville, Greenwood, Laurens, Union	40 min
Jan 12, 6:32 PM EST	Severe Thunderstorm Warning	GSP	Chester, Greenwood, Laurens, Union	28 min
Jan 12, 3:19 PM EST	Special Weather Statement	GSP	Rabun	26 min
Jan 12, 4:52 PM EST	Special Weather Statement	GSP	Franklin, Hart	23 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2023 Every severe thunderstorm warning in 2023

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.