Alert archive / Arkansas / Flash Flood Warnings in 1999
Flash Flood Warning 21, NWS Little Rock, AR
NWS Little Rock, AR issued this flash flood warning at Apr 24, 1999, 11:09 AM CDT for Monroe 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
- Apr 24, 1999, 11:09 AM CDT (16:09 UTC)
- Expired
- Apr 24, 1999, 2:10 PM CDT
- In force
- 3 hr
- Issued by
- NWS Little Rock, AR
- Area
- Whole counties
County Monroe County, AR
The radar
The Little Rock radar (KLZK), 98 km from the middle of the area, began a volume at 16:12 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
Little Rock, AR (KLZK), launched 12:00Z, 4.2 hours before the alert went out and 116 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
- 53 J/kg
- Mixed-layer CIN
- -618 J/kg
- Mixed-layer LCL
- 804 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 237 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLIT 241608 FFWLIT ARC095-241910- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LITTLE ROCK AR 1109 AM CDT SAT APR 24 1999 THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHERN MONROE COUNTY IN EASTERN ARKANSAS * UNTIL 210 PM CDT * DOPPLER WEATHER RADAR INDICATED THAT RAINFALL AMOUNTS OF 2 INCHES OR MORE OCCURRED IN SOUTHERN MONROE COUNTY BETWEEN 10 AM AND 11 AM. ADDITIONAL HEAVY RAINFALL WILL AFFECT THE AREA FOR THE NEXT FEW HOURS. DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! THE WATER DEPTH MAY BE TOO GREAT FOR SAFE PASSAGE. IT ONLY TAKES ABOUT TWO FEET OF MOVING WATER TO CARRY A CAR DOWNSTREAM. 22
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 8:00 AM CDT | Severe Thunderstorm Warning | LZK | Monroe | 35 min |
| Apr 24, 9:07 AM CDT | Severe Thunderstorm Warning | LZK | Logan | 48 min |
| Apr 24, 10:16 AM CDT | Severe Thunderstorm Warning | LZK | Logan | 64 min |
| Apr 24, 10:21 AM CDT | Severe Thunderstorm Warning | LZK | Scott | 64 min |
| Apr 24, 11:01 AM CDT | Flash Flood Warning | LZK | Scott | 119 min |
| Apr 24, 11:15 AM CDT | Severe Thunderstorm Warning | LZK | Yell | 65 min |
| Apr 24, 11:26 AM CDT | Severe Thunderstorm Warning | LZK | Montgomery | 64 min |
| Apr 24, 11:38 AM CDT | Flash Flood Warning | LZK | Lonoke | 3 hr |
| Apr 24, 11:59 AM CDT | Severe Thunderstorm Warning | LZK | Perry, Saline | 51 min |
| Apr 24, 12:53 PM CDT | Tornado Warning | LZK | Pike | 47 min |
| Apr 24, 2:02 PM CDT | Severe Thunderstorm Warning | LZK | Grant | 48 min |
| Apr 24, 2:23 PM CDT | Severe Thunderstorm Warning | LZK | Jefferson | 62 min |
Nearby
Flash Flood Warnings in Arkansas, 1999Every flash flood warning in 1999
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.