Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 330, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Aug 10, 2001, 5:45 PM CDT for Boone County, Arkansas. It was in force for 30 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
- Aug 10, 2001, 5:45 PM CDT (22:45 UTC)
- Expired
- Aug 10, 2001, 6:15 PM CDT
- In force
- 30 min
- Issued by
- NWS Little Rock, AR
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Boone County, AR
The radar
The Springfield radar (KSGF), 107 km from the middle of the area, began a volume at 22:48 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, 10.8 hours before the alert went out and 91 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
- 904 J/kg
- Mixed-layer CIN
- -202 J/kg
- Mixed-layer LCL
- 1255 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- -86 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 Aug 10, 3:55 PM CDT, 1 hour 50 minutes earlier.
Area forecast discussion, Aug 10, 3:55 PM CDT, 1 hour 50 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LITTLE ROCK AR 355 PM CDT FRI AUG 10 2001 MODELS IN FAIR AGREEMENT TODAY. COLD FRONT ON NORTHWEST ARKANSAS-MISSOURI BORDER THIS AFTERNOON WILL CONTINUE TO DRIFT INTO ARKANSAS TONIGHT. FRONT SHOULD GET TO CENTRAL ARKANSAS SOMETIME DURING THE DAY ON SATURDAY. WILL CONTINUE CHANCE POPS FOR THE STATE TONIGHT WITH HIGHEST VALUES IN THE NORTH. WITH FRONT IN THE STATE ON SATURDAY...WILL GO WITH THUNDERSHOWERS LIKELY IN THE NORTH AND CHANCE POPS IN THE SOUTH. FRONT SHOULD MOVE OUT OF THE STATE SUNDAY NIGHT. WILL CONTINUE CHANCE POPS SUNDAY...AND IN THE CENTRAL AND SOUTH SUNDAY NIGHT. THEN DRY WEATHER BACK ON TAP FOR MUCH OF THE COMING WEEK. NGM MOS TEMPERATURES AND POPS NOT TOO FAR OUT OF LINE SO ONLY A FEW ADJUSTMENTS MADE. (22) .LIT...NONE.
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 7:49 PM CDT | Flash Flood Warning | LZK | Polk | 56 min |
| Aug 9, 8:07 PM CDT | Severe Thunderstorm Warning | LZK | Marion | 38 min |
| Aug 10, 5:05 AM CDT | Flash Flood Warning | LZK | Stone | 115 min |
| Aug 10, 7:00 AM CDT | Flash Flood Warning | LZK | Stone | 2 hr |
| Aug 10, 5:09 PM CDT | Severe Thunderstorm Warning | LZK | Boone, Marion | 36 min |
| Aug 10, 5:19 PM CDT | Severe Thunderstorm Warning | LZK | Yell | 26 min |
| Aug 10, 6:27 PM CDT | Severe Thunderstorm Warning | LZK | Independence, Jackson | 33 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.