Alert archive / Arkansas / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 339, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Nov 10, 2004, 11:13 PM CST for Prairie County, Woodruff County, Arkansas. It was in force for 32 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 10, 2004, 11:13 PM CST (05:13 UTC)
- Expired
- Nov 10, 2004, 11:45 PM CST
- In force
- 32 min
- Issued by
- NWS Little Rock, AR
- Area
- Counties, with a storm outline in the text
Counties Prairie County, AR, Woodruff County, AR
The radar
The Little Rock radar (KLZK), 81 km from the middle of the area, began a volume at 05:16 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 00:00Z, 5.2 hours before the alert went out and 302 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1001 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 253 m²/s²
- 0-3 km storm-relative helicity
- 292 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 10, 10:15 PM CST, 58 minutes earlier.
Area forecast discussion, Nov 10, 10:15 PM CST, 58 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LITTLE ROCK AR 1015 PM CST WED NOV 10 2004 .DISCUSSION... UPPER LOW APPEARS TO BE OVER NORTH CENTRAL OKLAHOMA AT ISSUE TIME BASED ON SATELLITE. MAIN COLD FRONT IS LAGGING BEHIND THE SYSTEM. MAIN LINE OF THUNDERSTORMS IS INTO EXTREME EASTERN OKLAHOMA AND IT SHOULD PROGRESS EAST INTO ARKANSAS AND ACROSS THE AREA THROUGH THE NIGHT. MEANWHILE SCATTERED SHOWERS AND THUNDERSTORMS HAVE DEVELOPED MOSTLY FROM WARM ADVECTION AND ISENTROPIC LIFT ACROSS WESTERN AND CENTRAL ARKANSAS. THIS HAS ALSO BEEN AIDED BY SOME UPPER DIFFLUENCE AHEAD OF THE UPPER LOW. INSTABILITY IS QUITE MARGINAL SO THIS WILL CUT DOWN ON SEVERE POTENTIAL ALTHOUGH ISOLATED STRONG STORMS WILL BE POSSIBLE. FIGURE ON ACTIVITY CONTINUING TO INCREASE IN COVERAGE OVER THE NEXT FEW HOURS SO LEFT POPS AT 80 PERCENT. DID UPDATE MAINLY TO CLEAR UP EVENING WORDING. UPPED WIND FORECASTS A LITTLE IN THE EAST WHERE STRONGER SOUTHEAST WINDS HAVE DEVELOPED AHEAD OF THE PRECIPITATION...BUT THAT SHOULD DECREASE SOME ONCE RAIN BEGINS. TEMP FORECASTS LOOK GOOD AT THIS TIME. && .LZK WATCHES/WARNINGS/ADVISORIES...NONE. && 29
Hazardous weather outlook, Nov 10, 7:15 PM CST, 3 hours 58 minutes before
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</html>The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 10, 10:22 PM CST | Severe Thunderstorm Warning | LZK | Pulaski, Saline | 38 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2004Every severe thunderstorm warning in 2004
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.