Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 273, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Jun 30, 2001, 4:52 AM CDT for Yell County, Arkansas. It was in force for 23 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
- Jun 30, 2001, 4:52 AM CDT (09:52 UTC)
- Expired
- Jun 30, 2001, 5:15 AM CDT
- In force
- 23 min
- Issued by
- NWS Little Rock, AR
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Yell County, AR
The radar
The Western Arkansas radar (KSRX), 92 km from the middle of the area, began a volume at 09:53 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 |
|---|---|---|---|
| Jun 30, 5:00 AM CDT | Hail 0.75 | Plainview, 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
Springfield, MO (KSGF), launched 00:00Z, 9.9 hours before the alert went out and 214 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
- 821 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 966 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 50 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 Jun 30, 3:30 AM CDT, 1 hour 22 minutes earlier.
Area forecast discussion, Jun 30, 3:30 AM CDT, 1 hour 22 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LITTLE ROCK AR 330 AM CDT SAT JUN 30 2001 PESKY UPPER LOW WILL NOT MOVE MUCH TODAY OVER NORTHERN AR...BUT WILL BEGIN TO SINK SOUTH TONIGHT AND SUNDAY. MODELS AGREE PRETTY WELL ON THIS H50 SCENARIO. THIS WILL TAKE MUCH OF THE DEEPER MOISTURE SOUTH WITH IT...SO RAIN CHANCES WILL BE DECREASING AS TIME GOES ON FROM NORTH TO SOUTH. WILL GO WITH SCATTERED TO LIKELY POPS TODAY OVER CENTRAL AND SOUTHERN ZONES. PW VALUES WAY UP THERE...SO COULD BE LOCALLY HEAVY RAIN IN THE STRONGER CELLS. DO NOT THINK THE NORTH WILL SEE MUCH ACTIVITY...BUT WILL NOT REMOVE POPS COMPLETELY...WILL LIKELY GO WITH 20-30%. MAIN THREAT OF SHOWERS/THUNDERSTORMS TONIGHT WILL BE OVER SOUTHERN ZONES AS UPPER LOW SINKS IN THAT DIRECTION. WILL REMOVE POPS COMPLETELY OVER THE NORTH. WITH SKIES BECOMING PARTLY CLOUDY...LIGHT WINDS AND RESIDUAL LOW LEVEL MOISTURE LEFT OVER...WILL INTRODUCE AREAS OF FOG LATE MANY AREAS. SUNDAY LOOKS LESS ACTIVE WITH SCATTERED RAIN CHANCES LIMITED TO SOUTHERN ZONES. WILL HALF STEP CENTRAL AND NORTH BACK TO ABOUT 20 PERCENT. STATUS QUO FORECAST FOR EARLY NEXT WEEK...THOUGH UPPER HIGH DOES ATTEMPT xTO REESTABLISH ITSELF BY MID WEEK. WILL ALLOW FOR SCATTERED AFTERNOON CONVECTION...MAINLY SOUTHEAST HALF MONDAY AND TUESDAY. (45) .LIT...NONE.
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 5:32 AM CDT | Flash Flood Warning | LZK | Yell | 118 min |
| Jun 30, 5:49 AM CDT | Severe Thunderstorm Warning | LZK | Perry, Yell | 41 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.