Alert archive / Arkansas / Flash Flood Warnings in 2019

Flash Flood Warning 101, NWS Little Rock, AR

August 20, 2019Fulton County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Aug 20, 2019, 6:22 PM CDT for Fulton County, Arkansas. 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
Aug 20, 2019, 6:22 PM CDT (23:22 UTC)
Expired
Aug 20, 2019, 9:15 PM CDT
In force
3 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

County Fulton County, AR

The radar

The Springfield radar (KSGF), 170 km from the middle of the area, began a volume at 23:25 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

Springfield, MO (KSGF), launched 12:00Z, 11.4 hours before the alert went out and 186 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, Springfield, MO at 12:00Z on 2019-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2425 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, Springfield, MO at 12:00Z on 2019-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 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
2425 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1365 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 20, 4:02 AM CDTHeat AdvisoryLZKArkansas, Baxter, Bradley, Calhoun, Clark, Cleburne and 29 more39 hr
Aug 20, 10:42 AM CDTExcessive Heat WarningLZKArkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 23 more10 hr
Aug 20, 2:39 PM CDTSpecial Weather StatementLZKPerry36 min
Aug 20, 3:14 PM CDTSpecial Weather StatementLZKYell46 min
Aug 20, 5:55 PM CDTSpecial Weather StatementLZKFulton35 min
Aug 20, 6:18 PM CDTSpecial Weather StatementLZKRandolph27 min
Aug 20, 6:28 PM CDTSpecial Weather StatementLZKSharp32 min
Aug 20, 6:34 PM CDTFlash Flood WarningLZKFulton116 min
Aug 20, 6:50 PM CDTSpecial Weather StatementLZKLawrence25 min
Aug 20, 6:51 PM CDTSpecial Weather StatementLZKBaxter24 min
Aug 20, 6:58 PM CDTSpecial Weather StatementLZKBoone, Marion32 min

Nearby

Flash Flood Warnings in Arkansas, 2019Every flash flood warning in 2019

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.