Alert archive / North Carolina / Flash Flood Warnings in 2020
Flash Flood Warning 51, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this flash flood warning at Aug 15, 2020, 6:10 PM EDT for 4 counties in North Carolina. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 15, 2020, 6:10 PM EDT (22:10 UTC)
- Expired
- Aug 15, 2020, 8:31 PM EDT
- In force
- 2 hr
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Catawba County, NC, Davie County, NC, Iredell County, NC, Rowan County, NC
The radar
The Roanoke radar (KFCX), 143 km from the middle of the area, began a volume at 22:11 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.2 hours before the alert went out and 72 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.
- Mixed-layer CAPE
- 585 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 521 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
714
WGUS52 KGSP 152210
FFWGSP
NCC035-059-097-159-160115-
/O.NEW.KGSP.FF.W.0051.200815T2210Z-200816T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Greenville-Spartanburg SC
610 PM EDT Sat Aug 15 2020
The National Weather Service in Greenville-Spartanburg has issued a
* Flash Flood Warning for...
East Central Catawba County in the piedmont of North Carolina...
Southeastern Davie County in the piedmont of North Carolina...
Central Iredell County in the piedmont of North Carolina...
Northwestern Rowan County in the piedmont of North Carolina...
* Until 915 PM EDT.
* At 610 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Salisbury, Statesville, Spencer, Troutman, Cooleemee, Cleveland,
Catawba, Lake Norman State Park, Lake Norman, Lookout Shoals Lake,
Mount Ulla, Cool Springs, Piedmont Research Station, Woodleaf and
Scotts.
Additional rainfall amounts of 1 to 3 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
When it is safe to do so, please report flooding or landslides
threatening roads or property to the National Weather Service
Greenville-Spartanburg by calling toll free, 1, 800, 2 6 7, 8 1 0 1,
by posting on our Facebook page, or via Twitter using hashtag
NWSGSP. Your message should describe the specific location where
impacts occurred and the depth of flooding observed.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses
as well as other drainage areas and low lying spots.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 3569 8115 3584 8102 3584 8044 3583 8044
3583 8045 3583 8046 3579 8048 3577 8045
3575 8046 3574 8046 3572 8042 3565 8040
FLASH FLOOD...RADAR INDICATED
$$
Krentz1 follow-up statement
897
WGUS72 KGSP 160031
FFSGSP
Flash Flood Statement
National Weather Service Greenville-Spartanburg SC
831 PM EDT Sat Aug 15 2020
NCC035-059-097-159-160041-
/O.CAN.KGSP.FF.W.0051.000000T0000Z-200816T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Catawba NC-Davie NC-Iredell NC-Rowan NC-
831 PM EDT Sat Aug 15 2020
...FLASH FLOOD WARNING IS CANCELLED FOR EAST CENTRAL CATAWBA,
SOUTHEASTERN DAVIE, CENTRAL IREDELL AND NORTHWESTERN ROWAN
COUNTIES...
The heavy rain has ended and flooding is no longer expected to pose
a threat. Please continue to heed any road closures and watch for
high water levels due to poor drainage areas.
A Flash Flood Watch remains in effect until 1200 AM EDT for portions
of piedmont North Carolina and western North Carolina.
LAT...LON 3569 8115 3584 8102 3584 8044 3583 8044
3583 8045 3583 8046 3579 8048 3577 8045
3575 8046 3574 8046 3572 8042 3565 8040
$$
KrentzWhat forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at Aug 15, 5:39 PM EDT, 31 minutes earlier.
Area forecast discussion, Aug 15, 5:39 PM EDT, 31 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
539 PM EDT Sat Aug 15 2020
.SYNOPSIS...
Showers and thunderstorms will diminish overnight tonight.
Thunderstorm chances will return to more typical levels for Sunday
and Monday, then increase through the week as an upper level trough
becomes well established. Highs will be around normal through the
first part of the week then fall below normal.
&&
.NEAR TERM /THROUGH SUNDAY/...
As of 530 PM: A Flash Flood Watch remains in effect for portions
of North Carolina through tonight.
Convection continues across a good share of the CWA attm, driven by
modest CAPE and a shortwave trough now centered over the southern
end of the Appalachians. A low-level convergence axis has helped
some of this activity focus and loosely organize, but with shear
not too remarkable and perhaps due to a lack of dry air to support
strong outflows, the storms along the line seem to be feeling the
effects of the late day instability decline. Elevated PWATs and
generally unidirectional shear will continue to support locally
heavy rainfall and isolated flash flood threat from the remaining
cells. A cluster is forming across the eastern Upstate that we
will watch especially closely.
Expect activity to wane tonight with lingering light showers
possible overnight as the sfc low and trailing cold front slowly
push through the area and upper troughing moves overhead. While
patchy fog will be possible given light winds and saturated soils,
expect low stratus to be the main concern overnight per latest
fcst soundings. Guidance continues to suggest low clouds lingering
through mid Sunday morning at the latest as drier air gradually
makes it's way into the area with NW flow. Min temps will drop to
around normal.
Despite the slow infiltration of drier air in the wake of the
exiting system, lingering available moisture and instability will
warrant the potential for isolated convection once again Sunday.
Otherwise, expect a mixture of sunshine and clouds with max
temperatures falling a few degrees short of normal.
&&
.SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/...
As of 2pm EDT Saturday: Weather Monday and Tuesday is largely the
result of a longwave trough over the eastern CONUS, with a southern
extent over the GSP CWA. This far south, dynamical factors are
somewhat weak, but a frontal boundary is expected to pass through
the area from northwest to southeast on Monday, with an enhanced
chance for precipitation as it passes, and a reduction behind it as
moisture is reduced. Showers on Monday may be more confined to
piedmont areas where the front may better interact with moisture,
while on Tuesday, what showers that manage to form will be more
likely over the mountains where elevated surface heating has a
better chance of breaking the cap. MLCAPE will be weak on Monday
behind the previous front, and confined to piedmont areas, by
Tuesday afternoon behind the next front, it will be even weaker at
below 400 j/kg. Longwave pattern is expected to help temperatures
to remain just below climo, and notably below recent weeks. With
still weak dynamics at play, surface features are poorly defined,
and winds are expected to remain light, outside of outflows from
storms.
&&
.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
As of 2pm EDT Saturday: Longwave eastern trough gives way
Wednesday/Thursday as northern extent pulls out, being replaced by
some ridging east of the continent and, relevant to GSP, a shortwave
trough over the Southern Mississippi basin. This trough will help
to maintain and increase moisture back up to sub-tropical levels,
and keep a chance for afternoon thunderstorms in the forecast for
Wednesday onward. GFS surface forecast gains 4 degrees in dewpoint
on Wednesday, regaining the moisture lost on Tuesday. The GFS model
brings the southwest shortwave across the area earlier than the EC,
with Saturday afternoon being a respite from afternoon
thunderstorms, if it is correct. Seasonally weak synoptic features
will lead to near normal temperatures and light winds through the
extended forecast.
&&
.AVIATION /22Z SATURDAY THROUGH THURSDAY/...
At KCLT and Elsewhere: Expect scattered to widespread showers and
thunderstorms to continue across the area through the rest of today
and into this evening, which will bring periods of flight
restrictions to TAF sites due to heavy downpours/patchy fog and
lowered cigs, as noted by TEMPO groups. Expect a majority of the
activity to wane into tonight, with a few lingering showers possible
overnight. While patchy fog will be possible especially given
saturated soils, latest fcst soundings continue to suggest low cigs
to be the primary concern for some TAF sites with MVFR/IFR/possible
LIFR overnight. Cigs may be gradual to lift Sunday morning, thus
have kept with VFR/MVFR trend. Winds will remain light overall, with
brief gusty winds possible in any stronger storms.
Outlook: Isolated to widely scattered tstms expected Sunday and
Monday. An uptick in thunderstorm coverage is then likely Tuesday
through Wednesday. Fog and low stratus restrictions will be possible
each morning, especially over the usual mountain valleys. Otherwise
expect VFR.
Confidence Table...
21-03z 03-09Z 09-15Z 15-18Z
KCLT High 100% High 81% Med 68% Med 75%
KGSP High 96% High 96% Med 71% Med 79%
KAVL High 91% Med 73% Low 50% High 87%
KHKY Med 66% Low 51% Med 68% Med 75%
KGMU High 96% High 96% Med 65% Med 77%
KAND High 98% High 100% Low 56% Med 75%
The percentage reflects the number of guidance members agreeing
with the scheduled TAF issuance flight rule category. Complete hourly
experimental aviation forecast consistency tables are available at
the following link:
www.weather.gov/gsp/aviation
&&
.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...Flash Flood Watch until midnight EDT tonight for NCZ033-
035>037-056-057-501>506.
SC...None.
&&
SYNOPSIS...DEO
NEAR TERM...12/08
SHORT TERM...WJM
LONG TERM...WJM
AVIATION...12Hazardous weather outlook, Aug 15, 3:36 PM EDT, 2 hours 34 minutes before
Hazardous Weather Outlook National Weather Service Greenville-Spartanburg SC 336 PM EDT Sat Aug 15 2020 GAZ010-017-018-026-028-029-NCZ048>053-058-059-062>065-068>072-082- 507>510-SCZ001>014-019-161945- Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Madison-Yancey- Mitchell-Swain-Haywood-Buncombe-Graham-Northern Jackson-Macon- Southern Jackson-Transylvania-Henderson-Cleveland-Lincoln-Gaston- Mecklenburg-Cabarrus-Union NC-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- 336 PM EDT Sat Aug 15 2020 This Hazardous Weather Outlook is for northeast Georgia, piedmont North Carolina, western North Carolina and upstate South Carolina. .DAY ONE...This afternoon and tonight. Widespread showers and thunderstorms will continue to develop across the region through the evening hours. The primary threats with these storms will be cloud-to-ground lightning and locally heavy rainfall. The storms and heavy rain showers will occasionally become stationary, posing a threat of excessive rainfall and flash flooding, especially in locations that have received heavy rainfall over the past few days. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... None. NCZ033-035>037-056-057-501>506-161945- Avery-Alexander-Iredell-Davie-Catawba-Rowan-Caldwell Mountains- Greater Caldwell-Burke Mountains-Greater Burke-McDowell Mountains- Eastern McDowell- 336 PM EDT Sat Aug 15 2020 ...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... This Hazardous Weather Outlook is for piedmont North Carolina and western North Carolina. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Widespread thunderstorms can produce cloud-to- ground lightning and occasional gusty winds. .DAYS TWO THROUGH SEVEN...Sunday through Friday. 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.
In the hours before
Local storm report, Aug 15, 4:54 PM EDT, 1 hour 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
454 PM EDT SAT AUG 15 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0420 PM FLASH FLOOD 2 S DREXEL 35.74N 81.61W
08/15/2020 BURKE NC BROADCAST MEDIA
BROADCAST MEDIA REPORTED FLASH FLOOD ON THE
INTERSECTION OF DREXEL AND COOK RD. DEBRIS BEING SWEPT ONTO THE
ROADWAY FROM RUNNING WATER.
&&Special weather statement, Aug 15, 4:59 PM EDT, 1 hour 11 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
459 PM EDT Sat Aug 15 2020
SCZ006-007-010>012-019-152130-
Laurens SC-Anderson SC-Abbeville SC-Greenwood SC-Spartanburg SC-
Greater Greenville SC-
459 PM EDT Sat Aug 15 2020
...STRONG THUNDERSTORMS WILL IMPACT LAURENS...SOUTHEASTERN
GREENVILLE...SOUTH CENTRAL SPARTANBURG...EAST CENTRAL ANDERSON...
EASTERN ABBEVILLE AND GREENWOOD COUNTIES UNTIL 530 PM EDT...
At 459 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from 13 miles west of Laurens to 8 miles south of
Abbeville, and moving east at 25 mph.
Locations to be impacted include...
Greenwood, Laurens, Abbeville, Honea Path, Ware Shoals, Ninety Six,
Due West, Gray Court, Cross Hill and Donalds.
Wind gusts up to 40 mph, pea size hail and very heavy rainfall rates
up to 2 inches per hour will be possible in these areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
The combination of gusty winds and saturated soil conditions will
cause scattered trees and power lines to fall. Seek shelter inside an
interior room.
Torrential rainfall may flood areas with poor drainage, such as
ditches and underpasses. Avoid these areas and do not cross flooded
roads. Water levels of small streams may also rise rapidly. Seek
higher ground if threatened by flood waters.
&&
LAT...LON 3398 8205 3399 8210 3399 8215 3397 8218
3399 8221 3402 8224 3397 8231 3406 8233
3406 8244 3408 8247 3459 8238 3470 8185
3422 8193 3421 8194 3419 8193 3402 8196
3397 8201 3397 8204
TIME...MOT...LOC 2059Z 264DEG 20KT 3453 8227 3406 8235
KRENTZSpecial weather statement, Aug 15, 5:04 PM EDT, 1 hour 6 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
504 PM EDT Sat Aug 15 2020
NCZ068-SCZ006>009-013-152130-
Cleveland NC-York SC-Cherokee SC-Union SC-Spartanburg SC-
Greater Greenville SC-
504 PM EDT Sat Aug 15 2020
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN CLEVELAND...EAST
CENTRAL GREENVILLE...SOUTHWESTERN YORK...SPARTANBURG...CHEROKEE AND
NORTHERN UNION COUNTIES UNTIL 530 PM EDT...
At 504 PM EDT, Doppler radar was tracking a strong thunderstorm 10
miles west of Spartanburg, or near Duncan, moving east at 25 mph.
Locations to be impacted include...
Spartanburg, Gaffney, Greer, Five Forks, Boiling Springs SC, Duncan,
Lyman, Pacolet, Cowpens and Wellford.
Wind gusts up to 40 mph and very heavy rainfall rates up to 2 inches
per hour will be possible in these areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
The combination of gusty winds and saturated soil conditions will
cause scattered trees and power lines to fall. Seek shelter inside an
interior room.
Torrential rainfall may flood areas with poor drainage, such as
ditches and underpasses. Avoid these areas and do not cross flooded
roads. Water levels of small streams may also rise rapidly. Seek
higher ground if threatened by flood waters.
&&
LAT...LON 3508 8222 3518 8177 3527 8145 3482 8143
3482 8149 3479 8146 3476 8146 3476 8212
3478 8215 3476 8216 3476 8227
TIME...MOT...LOC 2104Z 263DEG 20KT 3491 8210
KRENTZLocal storm report, Aug 15, 5:32 PM EDT, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
532 PM EDT SAT AUG 15 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0515 PM FLASH FLOOD 1 WSW VALDESE 35.74N 81.58W
08/15/2020 BURKE NC BROADCAST MEDIA
WATER FLOWING ACROSS POWELL AVENUE POSSIBLY FROM DOUBLE
BRANCH CREEK.
&&Special weather statement, Aug 15, 5:47 PM EDT, 23 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
547 PM EDT Sat Aug 15 2020
SCZ008-009-013-014-152230-
York SC-Cherokee SC-Union SC-Chester SC-
547 PM EDT Sat Aug 15 2020
...STRONG THUNDERSTORMS WILL IMPACT NORTHERN CHESTER...SOUTHERN
YORK...SOUTHEASTERN CHEROKEE AND NORTHEASTERN UNION COUNTIES UNTIL
630 PM EDT...
At 547 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from 9 miles north of Lancaster to 10 miles northeast
of Union, and moving east at 30 mph.
Locations to be impacted include...
Rock Hill, Lesslie, Sharon, Mcconnells, Lowrys, Catawba, Saratt,
Edgemoor and Bullock Creek.
Wind gusts up to 40 mph and very heavy rainfall rates up to 2 inches
per hour will be possible in these areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
The combination of gusty winds and saturated soil conditions will
cause scattered trees and power lines to fall. Seek shelter inside an
interior room.
Torrential rainfall may flood areas with poor drainage, such as
ditches and underpasses. Avoid these areas and do not cross flooded
roads. Water levels of small streams may also rise rapidly. Seek
higher ground if threatened by flood waters.
&&
LAT...LON 3490 8088 3487 8088 3486 8087 3484 8087
3483 8090 3482 8090 3478 8088 3481 8167
3497 8151 3494 8087 3493 8087 3492 8086
TIME...MOT...LOC 2147Z 259DEG 28KT 3486 8074 3485 8151
KRENTZSpecial weather statement, Aug 15, 5:57 PM EDT, 13 minutes before
Special Weather Statement National Weather Service Greenville-Spartanburg SC 557 PM EDT Sat Aug 15 2020 NCZ036-037-057-152230- Rowan NC-Davie NC-Iredell NC- 557 PM EDT Sat Aug 15 2020 ...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN DAVIE...EAST CENTRAL IREDELL AND NORTHWESTERN ROWAN COUNTIES UNTIL 630 PM EDT... At 556 PM EDT, Doppler radar was tracking a strong thunderstorm 4 miles southeast of Statesville, moving northeast at 20 mph. Locations to be impacted include... Statesville, Troutman, Cooleemee, Cleveland, Harmony, Turnersburg, Woodleaf and Cool Springs. Wind gusts up to 40 mph and very heavy rainfall rates up to 2 inches per hour will be possible in these areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... The combination of gusty winds and saturated soil conditions will cause scattered trees and power lines to fall. Seek shelter inside an interior room. Torrential rainfall may flood areas with poor drainage, such as ditches and underpasses. Avoid these areas and do not cross flooded roads. Water levels of small streams may also rise rapidly. Seek higher ground if threatened by flood waters. && LAT...LON 3563 8080 3575 8096 3598 8074 3580 8051 TIME...MOT...LOC 2156Z 226DEG 16KT 3575 8082 KRENTZ
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 10:47 PM EDT | Special Weather Statement | GSP | Alexander | 73 min |
| Aug 15, 12:19 AM EDT | Flash Flood Warning | GSP | Catawba | 6 hr |
| Aug 15, 12:56 AM EDT | Flash Flood Warning | GSP | Burke, Caldwell | 6 hr |
| Aug 15, 2:19 AM EDT | Flash Flood Warning | GSP | Alexander, Burke, Caldwell, Catawba | 4 hr |
| Aug 15, 4:29 AM EDT | Areal Flood Advisory | GSP | Alexander, Catawba | 5 hr |
| Aug 15, 10:48 AM EDT | River Flood Advisory | GSP | Henderson, Transylvania | 8 hr |
| Aug 15, 3:09 PM EDT | Special Weather Statement | GSP | Union | 36 min |
| Aug 15, 4:04 PM EDT | Special Weather Statement | GSP | Polk, Rutherford | 26 min |
| Aug 15, 4:28 PM EDT | Flash Flood Warning | GSP | Alexander, Burke, Caldwell, Catawba, Iredell | 2 hr |
| Aug 15, 4:33 PM EDT | Special Weather Statement | GSP | Cleveland | 27 min |
| Aug 15, 4:50 PM EDT | Flash Flood Warning | GSP | Mecklenburg, Union | 3 hr |
| Aug 15, 5:57 PM EDT | Special Weather Statement | GSP | Iredell | 33 min |
| Aug 15, 7:43 PM EDT | Special Weather Statement | GSP | Cabarrus, Mecklenburg | 32 min |
Nearby
Flash Flood Warnings in North Carolina, 2020Every flash flood warning in 2020
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.