Alert archive / North Carolina / Flash Flood Warnings in 2025

Flash Flood Warning 56, NWS Raleigh, NC

July 19, 20256 counties in North Carolina

NWS Raleigh, NC issued this flash flood warning at Jul 19, 2025, 8:56 PM EDT for 6 counties in North Carolina. It was in force for 3 hr. 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 19, 2025, 8:56 PM EDT (00:56 UTC)
Expired
Jul 19, 2025, 11:46 PM EDT
In force
3 hr
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Flood severity
None

Counties Alamance County, NC, Chatham County, NC, Durham County, NC, Guilford County, NC, Orange County, NC, Randolph County, NC

The radar

The Raleigh/Durham radar (KRAX), 85 km from the middle of the area, began a volume at 00:55 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 00:00Z, 0.9 hours before the alert went out and 50 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 2025-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1960 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 00:00Z on 2025-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 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
1960 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
943 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.4

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 8:23 PM EDTSevere Thunderstorm WarningRAHHarnett, Johnston, Wayne52 min
Jul 19, 9:27 PM EDTSpecial Weather StatementRAHHarnett, Johnston, Wayne, Wilson63 min
Jul 19, 9:54 PM EDTSevere Thunderstorm WarningRAHWayne, Wilson31 min
Jul 19, 10:08 PM EDTAreal Flood AdvisoryRAHDurham, Granville, Orange, Wake98 min
Jul 19, 10:25 PM EDTAreal Flood AdvisoryRAHJohnston, Wayne, Wilson103 min
Jul 20, 1:04 PM EDTHeat AdvisoryRAHAnson, Chatham, Cumberland, Durham, Harnett, Hoke and 12 more31 hr

Nearby

Flash Flood Warnings in North Carolina, 2025Every flash flood warning in 2025

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.