Alert archive / Arkansas / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 491, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Nov 18, 2003, 3:56 PM CST for Grant County, Saline County, Arkansas. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 18, 2003, 3:56 PM CST (21:56 UTC)
- Expired
- Nov 18, 2003, 4:55 PM CST
- In force
- 59 min
- Issued by
- NWS Little Rock, AR
- Area
- Counties, with a storm outline in the text
Counties Grant County, AR, Saline County, AR
The radar
The Little Rock radar (KLZK), 49 km from the middle of the area, began a volume at 22:00 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 18, 10:55 AM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Nov 18, 2:50 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 9.9 hours before the alert went out and 241 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
- 137 J/kg
- Mixed-layer CIN
- -93 J/kg
- Mixed-layer LCL
- 756 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 Nov 18, 11:25 AM CST, 4 hours 31 minutes earlier.
Area forecast discussion, Nov 18, 11:25 AM CST, 4 hours 31 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LITTLE ROCK AR 1125 AM CST TUE NOV 18 2003 UPDATE TO ZONES/GRIDS TO INCLUDE SEVERE THUNDERSTORM WATCH 959 AND TO INCLUDE LARGE HAIL IN GRIDDED PRODUCTS. COLD POOL AT UPPER LEVEL COMBINED WITH SUNSHINE OVER SOUTHWEST ARKANSAS WILL LEAD TO INCREASINGLY UNSTABLE CONDITIONS. MAIN CONCERN WITH THESE STORMS WILL BE LARGE HAIL. .LZK...NONE. 58
Hazardous weather outlook, Nov 18, 10:30 AM CST, 5 hours 26 minutes before
ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-191100- HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE LITTLE ROCK AR 1030 AM CST TUE NOV 18 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS ARKANSAS THIS AFTERNOON AND EVENING. AN UPPER LEVEL LOW WILL MOVE INTO THE STATE WITH VERY COLD AIR ALOFT. A COLD FRONT WILL ACCOMPANY THIS LOW ACROSS ARKANSAS. THUNDERSTORMS WILL DEVELOP ALONG THE FRONT AND A FEW THUNDERSTORMS MAY RANDOMLY DEVELOP. LARGE HAIL WILL BE THE MAIN SEVERE WEATHER. ISOLATED DAMAGING WIND WILL ALSO BE POSSIBLE. THE CHANCE OF SEVERE WEATHER SHOULD DIMINISH EARLY TONIGHT WITH THE LOSS OF HEATING AND THE MOVEMENT OF THE FRONT OUT OF THE AREA. PEOPLE ACROSS ARKANSAS ARE ADVISED TO CONTINUE MONITORING THE WEATHER TODAY. LISTEN FOR LATER STATEMENTS AND FORECASTS FOR THE MOST UP TO DATE INFORMATION FROM YOUR NATIONAL WEATHER SERVICE. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY ANOTHER LOW PRESSURE SYSTEM AND COLD FRONT WILL BRING THE NEXT CHANCE OF RAIN FOR SATURDAY NIGHT AND SUNDAY. MONDAY WILL BE DRY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EVENING ANYWHERE IN ARKANSAS. 29
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 18, 12:40 AM CST | Flash Flood Warning | LZK | Conway, Pope, Searcy, Van Buren | 3 hr |
| Nov 18, 1:38 AM CST | Flash Flood Warning | LZK | Cleburne, Stone | 3 hr |
| Nov 18, 2:25 AM CST | Flash Flood Warning | LZK | Izard | 3 hr |
| Nov 18, 3:02 PM CST | Severe Thunderstorm Warning | LZK | Scott | 53 min |
| Nov 18, 3:25 PM CST | Severe Thunderstorm Warning | LZK | Logan | 50 min |
| Nov 18, 4:01 PM CST | Severe Thunderstorm Warning | LZK | Scott, Yell | 49 min |
| Nov 18, 4:03 PM CST | Severe Thunderstorm Warning | LZK | Conway, Faulkner | 52 min |
| Nov 18, 4:16 PM CST | Severe Thunderstorm Warning | LZK | Johnson, Pope | 44 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2003Every severe thunderstorm warning in 2003
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.