Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 301, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Jul 19, 2001, 5:46 PM CDT for Independence County, Jackson County, Arkansas. It was in force for 29 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 19, 2001, 5:46 PM CDT (22:46 UTC)
- Expired
- Jul 19, 2001, 6:15 PM CDT
- In force
- 29 min
- Issued by
- NWS Little Rock, AR
- Area
- Whole counties
Counties Independence County, AR, Jackson County, AR
The radar
The Little Rock radar (KLZK), 122 km from the middle of the area, began a volume at 22:46 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 19, 5:50 PM CDT | Thunderstorm Wind 50 E | Oil Trough, AR | Thunderstorm winds blew down some trees and power lines. |
| Jul 19, 6:00 PM CDT | Hail 0.75 | Sulphur Rock, AR |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 10.8 hours before the alert went out and 161 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
- 1784 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 912 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -24 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Little Rock, AR wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 19, 3:01 PM CDT, 2 hours 45 minutes earlier.
Area forecast discussion, Jul 19, 3:01 PM CDT, 2 hours 45 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LITTLE ROCK AR 301 PM CDT THU JUL 19 2001 UPPER LEVEL RIDGE FORECAST BY MODELS TO WEAKEN SLIGHTLY AND SHIFT A LITTLE WEST BY THE WEEKEND. THIS TREND SEEMS TO BE UNDERWAY ALREADY AS DEBRIS FROM EARLIER CONVECTIVE COMPLEX OVER MO/IL HAS BEGUN TO PUSH INTO OUR NORTHEASTERN ZONES...WITH OUTFLOW BOUNDARIES BEGINNING TO GENERATE ISOLATED THUNDERSTORMS IN NORTH CENTRAL AND NORTHEAST AR. MAIN ISSUE FOR THE SHORT TERM IS THE HEAT ADVISORY. WFO SGF WILL CARRY A HEAT ADVISORY FOR THEIR NEIGHBORING ZONES...SO WILL EXPAND OUR CURRENT ADVISORY TO ENCOMPASS FAR NORTHERN ARKANSAS. THESE AREAS HAVE BEEN AMONG THE HOTTEST DURING THE DAY...BUT AMONG THE COOLEST AT NIGHT. THIS IS LIKELY DUE TO VALLEY EFFECTS...AS WELL AS DRYING SOILS AND VEGETATION. FOR TEMPERATURES...PERSISTENCE WILL BE THE RULE IN THE WESTERN AND CENTRAL ZONES. AFTERNOON HIGHS MAY SHOW A SLIGHT DECREASE WITH TIME IN THE EASTERN ZONES AS THESE AREAS BECOME MORE SUSCEPTIBLE TO CLOUD DEBRIS AND/OR PRECIP. RAIN CHANCES WILL BE HIGHER...BUT STILL ONLY LOW END CHANCE CATEGORY...IN THE EASTERN ZONES. IN THE EXTENDED...RIDGE BEGINS TO BUILD BACK nINTO OUR AREA BY TUESDAY. WILL CONTINUE WITH GOING FORECAST TRENDS OF DRYING OUT AND HEATING BACK UP BY MIDWEEK. .LIT...HEAT ADVISORY ALL ZONES FRIDAY AND SATURDAY. 54
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 8:04 PM CDT | Severe Thunderstorm Warning | LZK | Sharp | 56 min |
| Jul 19, 4:31 PM CDT | Severe Thunderstorm Warning | LZK | Independence | 29 min |
| Jul 19, 4:59 PM CDT | Severe Thunderstorm Warning | LZK | Independence | 31 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.