Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 321, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Jul 30, 2001, 5:33 PM CDT for Baxter County, Izard County, Arkansas. It was in force for 27 min. 1 report 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 30, 2001, 5:33 PM CDT (22:33 UTC)
- Expired
- Jul 30, 2001, 6:00 PM CDT
- In force
- 27 min
- Issued by
- NWS Little Rock, AR
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Baxter County, AR, Izard County, AR
The radar
The Little Rock radar (KLZK), 151 km from the middle of the area, began a volume at 22:35 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 30, 5:40 PM CDT | Thunderstorm Wind 50 E | Pineville, AR | Thunderstorm winds downed some trees. |
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
Springfield, MO (KSGF), launched 12:00Z, 10.6 hours before the alert went out and 169 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
- 2206 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1229 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 0.9
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 30, 3:00 PM CDT, 2 hours 33 minutes earlier.
Area forecast discussion, Jul 30, 3:00 PM CDT, 2 hours 33 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LITTLE ROCK AR 300 PM CDT MON JUL 30 2001 UPPER LEVEL HIGH WILL CONTINUE NEARLY STATIONARY. A SERIES OF VORTICITY MAXIMA WILL MOVE INTO ARKANSAS FROM THE NORTHWEST AND EACH WILL SET OFF THUNDERSHOWER DEVELOPMENT. THE MEAN RELATIVE HUMIDITY IS LIMITED AND DECREASING AFTER TUESDAY...THEN THE NEXT RAIN MAKER WILL COME FRIDAY. TEMPERATURES WILL CONTINUE NEAR NORMAL. MODEL OF CHOICE IS AVN. .LIT...HEAT ADVISORY TUESDAY FOR ZONES 52>57-62>69. 38
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 3:13 PM CDT | Severe Thunderstorm Warning | LZK | Dallas | 47 min |
| Jul 30, 4:01 PM CDT | Severe Thunderstorm Warning | LZK | Jefferson | 29 min |
| Jul 30, 5:53 PM CDT | Flash Flood Warning | LZK | Baxter, Fulton, Izard, Sharp | 97 min |
| Jul 30, 6:24 PM CDT | Severe Thunderstorm Warning | LZK | Independence | 36 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.