Alert archive / Arkansas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 237, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Jul 17, 2002, 4:02 PM CDT for Lonoke County, Arkansas. It was in force for 38 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 17, 2002, 4:02 PM CDT (21:02 UTC)
- Expired
- Jul 17, 2002, 4:40 PM CDT
- In force
- 38 min
- Issued by
- NWS Little Rock, AR
- Area
- Counties, with a storm outline in the text
County Lonoke County, AR
The radar
The Little Rock radar (KLZK), 35 km from the middle of the area, began a volume at 21:02 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 17, 4:05 PM CDT | Thunderstorm Wind 50 E | England, AR | Thunderstorm winds downed some large tree limbs and power lines. |
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, 9.0 hours before the alert went out and 177 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
- 235 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 609 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 17, 3:32 PM CDT, 30 minutes earlier.
Area forecast discussion, Jul 17, 3:32 PM CDT, 30 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LITTLE ROCK AR 332 PM CDT WED JUL 17 2002 PROBLEMS TODAY CONTINUE TO BE CHANCES OF PRECIPITATION. KLZK RADAR SHOWS SHOWERS AND THUNDERSTORMS MOVING NORTHEAST ACROSS MUCH OF ARKANSAS. SATELLITE PICTURES SHOW DISSIPATING CLOUDS ACROSS SOUTH ARKANSAS. WATER VAPOR IMAGERY SHOWS DRY AIR MOVING NORTH INTO TEXAS AND LOUISIANA. HIGH PRESSURE ACROSS THE SOUTHERN U.S. CONTINUES TO TRY TO WORK NORTH AND IS PUSHING THE PRECIPITATION NORTHWARD. ABUNDANT MOISTURE CONTINUES TO STREAM NORTHEAST FROM TEXAS...AROUND THE HIGH...AND INTO ARKANSAS. THE UPPER LEVEL LOW IN MISSOURI WILL MOVE SOUTHEAST INTO ARKANSAS THURSDAY NIGHT AND WILL GIVE NORTHEAST PORTIONS OF THE CWFA THE BEST CHANCE OF SHOWERS AND THUNDERSTORMS. MODELS ARE IN SIMILAR AGREEMENT BUT BELIEVE THE AVN IS OVERDONE A BIT WITH THE MOISTURE. WILL USE A BLEND OF ETA AND AVN AS FAR AS QPF IS CONCERNED. THIS NEXT SYSTEM WILL MOVE SOUTHEAST ACROSS THE AREA. SEVERAL SHORT WAVES WILL COME ACROSS THE NORTHEAST PART OF THE AREA SATURDAY THROUGH WEDNESDAY. WITH PLENTY OF CLOUDS AROUND THURSDAY...WILL KEEP TEMPERATURES IN THE 80S. FWC LOW TEMPERATURES LOOK GOOD BUT WENT COOLER ON THE HIGHS. .LZK...NONE. 51
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 2:18 PM CDT | Severe Thunderstorm Warning | LZK | Saline | 27 min |
| Jul 17, 4:36 PM CDT | Severe Thunderstorm Warning | LZK | Arkansas, Prairie | 39 min |
| Jul 17, 5:19 PM CDT | Severe Thunderstorm Warning | LZK | Arkansas | 26 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2002Every severe thunderstorm warning in 2002
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.