Alert archive / North Carolina / Flash Flood Warnings in 2021

Flash Flood Warning 5, NWS Raleigh, NC

June 10, 2021Davidson County, Randolph County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Jun 10, 2021, 9:11 PM EDT for Davidson County, Randolph County, North Carolina. It was in force for 3 hr. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 10, 2021, 9:11 PM EDT (01:11 UTC)
Expired
Jun 10, 2021, 11:49 PM EDT
In force
3 hr
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

Counties Davidson County, NC, Randolph County, NC

The radar

The Raleigh/Durham radar (KRAX), 138 km from the middle of the area, began a volume at 01:10 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.

What was reported inside it

TimeReportWhereRemark
Jun 10, 9:45 PM EDTFLASH FLOOD3 Ne Gordontown, NCSEVERAL ROADS BRIEFLY FLOODED IN EASTERN DAVIDSON COUNTY, NORTH OF TABERNACLE AND SOUTH OF THOMASVILLE.
Jun 10, 10:00 PM EDTFLASH FLOOD1 Ne Randleman, NCSEVERAL ROADS FLOODED IN RANDLEMAN INCLUDING FOX STREET AND POPLAR STREET.
Jun 10, 10:00 PM EDTFLASH FLOOD5 Se Archdale, NCWATER FLOWING ACROSS THE 4900 BLOCK OF EDGAR ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.2 hours before the alert went out and 38 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 00:00Z on 2021-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 392 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2021-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
392 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1272 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
35 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted.

765 
WGUS52 KRAH 110111
FFWRAH
NCC057-151-110400-
/O.NEW.KRAH.FF.W.0005.210611T0111Z-210611T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Raleigh NC
911 PM EDT Thu Jun 10 2021

The National Weather Service in Raleigh has issued a

* Flash Flood Warning for...
  Southeastern Davidson County in central North Carolina...
  Central Randolph County in central North Carolina...

* Until midnight EDT.

* At 911 PM EDT, Doppler radar indicates that thunderstorms with 
  very heavy rain will move across the warned area. Between 1 and 3 
  inches of rain has already  fallen and an additional 1 to 2 inches 
  is possible. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Radar estimates.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Asheboro, Lexington, Randleman, North Carolina Zoo, Thomasville, 
  Ramseur, Denton, Franklinville, Martha, Gordontown, and Ulah.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 3588 8025 3589 8011 3587 7991 3583 7974
      3577 7962 3564 7960 3559 7968 3559 7992
      3558 8018 3567 8027 3577 8031 3582 8033

FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Blaes
2 follow-up statements
578 
WGUS72 KRAH 110203
FFSRAH

Flash Flood Statement
National Weather Service Raleigh NC
1003 PM EDT Thu Jun 10 2021

NCC057-151-110400-
/O.CON.KRAH.FF.W.0005.000000T0000Z-210611T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Davidson NC-Randolph NC-
1003 PM EDT Thu Jun 10 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT 
FOR SOUTHEASTERN DAVIDSON AND CENTRAL RANDOLPH COUNTIES...

At 1003 PM EDT, Doppler radar indicates that thunderstorms with very 
heavy rain have dropped between 2 to 4 inches of rain across with 
warned area with localized amounts near 5 inches. This rain has 
produced considerable runoff and rapid rises on creeks and streams 
in the area. Flooding of low-lying and poor drainage areas is 
underway.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
Asheboro, Lexington, Randleman,  Ramseur, Denton, and Ulah.

Some specific creeks and waterways that are of greatest risk of 
flooding include Uwharrie creek, Brier Creek, and Caraway creek,

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 3588 8025 3589 8011 3587 7991 3583 7974
      3577 7962 3564 7960 3559 7968 3559 7992
      3558 8018 3567 8027 3577 8031 3582 8033

FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Blaes
263 
WGUS72 KRAH 110349
FFSRAH

Flash Flood Statement
National Weather Service Raleigh NC
1149 PM EDT Thu Jun 10 2021

NCC057-151-110359-
/O.CAN.KRAH.FF.W.0005.000000T0000Z-210611T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Davidson NC-Randolph NC-
1149 PM EDT Thu Jun 10 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN DAVIDSON AND 
CENTRAL RANDOLPH COUNTIES...

The heavy rain across Davidson and Randolph Counties will continue 
to become lighter and diminish overnight. Between 2 and 4 inches of 
rain fell across many portions of the the area this evening with 
localized amounts of 5 inches. This heavy rain resulted in flooding 
of low-lying and poor drainage areas and some road closures. Public 
safety officials report that conditions have improved and flooding 
is no longer expected to pose a threat.

Keep in mind that streams and creeks will continue to run high and 
fast for the next few hours. Be careful traveling at night when it 
is difficult to see water or debris on roads.

LAT...LON 3588 8025 3589 8011 3587 7991 3583 7974
      3577 7962 3564 7960 3559 7968 3559 7992
      3558 8018 3567 8027 3577 8031 3582 8033

$$

Blaes

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 10, 8:08 PM EDTSpecial Weather StatementRAHDavidson, Guilford, Randolph67 min
Jun 10, 8:56 PM EDTAreal Flood AdvisoryRAHDavidson, Randolph78 min
Jun 10, 9:12 PM EDTSpecial Weather StatementRAHRandolph63 min
Jun 10, 9:49 PM EDTSpecial Weather StatementRAHDuplin26 min
Jun 11, 1:21 PM EDTAreal Flood AdvisoryRAHForsyth, Guilford3 hr
Jun 11, 1:39 PM EDTSpecial Weather StatementRAHForsyth51 min
Jun 11, 2:03 PM EDTSpecial Weather StatementRAHAlamance57 min
Jun 11, 2:50 PM EDTAreal Flood AdvisoryRAHForsyth3 hr
Jun 11, 3:58 PM EDTSpecial Weather StatementRAHJohnston47 min
Jun 11, 4:32 PM EDTSpecial Weather StatementRAHGranville, Vance58 min

Nearby

Flash Flood Warnings in North Carolina, 2021Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.