Alert archive / Arkansas / Flash Flood Warnings in 2019

Flash Flood Warning 43, NWS Shreveport, LA

July 16, 2019Hempstead County, Nevada County, Arkansas

NWS Shreveport, LA issued this flash flood warning at Jul 16, 2019, 7:19 AM CDT for Hempstead County, Nevada 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: Jul 16, 2019, 7:19 AM CDT (12:19 UTC)
Expired: Jul 16, 2019, 10:45 AM CDT
In force: 3 hr
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Flood severity: None

Counties Hempstead County, AR, Nevada County, AR

The radar

The Shreveport radar (KSHV), 143 km from the middle of the area, began a volume at 12:21 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

Jackson, MS (KJAN), launched 12:00Z, 0.3 hours before the alert went out and 353 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: 736 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 706 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 79 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Shreveport, LA wrote its last area forecast discussion before this flash flood warning went out at Jul 16, 5:55 AM CDT, 1 hour 24 minutes earlier.

Area forecast discussion, Jul 16, 5:55 AM CDT, 1 hour 24 minutes before

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Hazardous weather outlook, Jul 16, 6:45 AM CDT, 34 minutes before

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In the hours before

Local storm report, Jul 16, 4:58 AM CDT, 2 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
458 AM CDT TUE JUL 16 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0457 AM     FLASH FLOOD      NASHVILLE               33.95N 93.84W
07/16/2019                   HOWARD             AR   LAW ENFORCEMENT

            SEVERAL ROADS UNDERWATER AND CLOSED IN AND
            AROUND NASHVILLE, ARKANSAS.

&&

13

Local storm report, Jul 16, 4:59 AM CDT, 2 hours 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
459 AM CDT TUE JUL 16 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0459 AM     FLASH FLOOD      CENTER POINT            34.03N 93.94W
07/16/2019                   HOWARD             AR   LAW ENFORCEMENT

            SEVERAL ROADS UNDER WATER AND CLOSED IN AND
            AROUND THE CENTER POINT COMMUNITY.

&&

13

Local storm report, Jul 16, 6:26 AM CDT, 53 minutes before

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Local storm report, Jul 16, 6:29 AM CDT, 50 minutes before

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The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 15, 7:58 PM CDT	River Flood Warning	SHV	Ashley, Union	18 days
Jul 16, 12:45 AM CDT	Flash Flood Warning	SHV	Hempstead, Howard, Little River, Nevada, Sevier	3 hr
Jul 16, 3:44 AM CDT	Flash Flood Warning	SHV	Hempstead, Howard, Little River, Nevada, Sevier	2 hr
Jul 16, 4:41 AM CDT	Flash Flood Warning	SHV	Howard, Sevier	3 hr
Jul 16, 5:52 AM CDT	Flash Flood Warning Emergency	SHV	Hempstead, Howard, Nevada, Sevier	5 hr
Jul 16, 7:15 AM CDT	Flash Flood Warning	SHV	Howard, Sevier	3 hr
Jul 16, 10:10 AM CDT	Flash Flood Warning Emergency	SHV	Hempstead, Howard, Nevada	8 hr
Jul 16, 5:44 PM CDT	Areal Flood Advisory	SHV	Hempstead, Howard, Nevada	12 hr

Nearby

Flash Flood Warnings in Arkansas, 2019 Every 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.