Alert archive / Arkansas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 670, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Jul 7, 2011, 9:17 PM CDT for Fulton County, Sharp County, Arkansas. It was in force for 28 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
- Jul 7, 2011, 9:17 PM CDT (02:17 UTC)
- Expired
- Jul 7, 2011, 9:45 PM CDT
- In force
- 28 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
Counties Fulton County, AR, Sharp County, AR
The radar
The Little Rock radar (KLZK), 169 km from the middle of the area, began a volume at 02:19 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 7, 5:03 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 2.3 hours before the alert went out and 204 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
- 2994 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1003 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 244 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 8.7
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 7, 6:43 PM CDT, 2 hours 34 minutes earlier.
Area forecast discussion, Jul 7, 6:43 PM CDT, 2 hours 34 minutes before
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</html>Hazardous weather outlook, Jul 7, 5:00 AM CDT, 16 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LITTLE ROCK AR 500 AM CDT THU JUL 7 2011 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-081000- ARKANSAS-BAXTER-BOONE-BRADLEY-CALHOUN-CLARK-CLEBURNE-CLEVELAND- CONWAY-DALLAS-DESHA-DREW-FAULKNER-FULTON-GARLAND-GRANT-HOT SPRING- INDEPENDENCE-IZARD-JACKSON-JEFFERSON-JOHNSON-LINCOLN-LOGAN-LONOKE- MARION-MONROE-MONTGOMERY-NEWTON-OUACHITA-PERRY-PIKE-POLK-POPE- PRAIRIE-PULASKI-SALINE-SCOTT-SEARCY-SHARP-STONE-VAN BUREN-WHITE- WOODRUFF-YELL- 500 AM CDT THU JUL 7 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL CONTINUE OVER THE EASTERN HALF OF ARKANSAS EARLY THIS MORNING. A FEW OF THESE STORMS COULD BE STRONG WITH SMALL HAIL AND GUSTY WINDS. THESE STORMS WILL ALSO PRODUCE PERIODS OF HEAVY RAINFALL WHICH COULD CAUSE MINOR FLOODING. SCATTERED SHOWERS AND THUNDERSTORMS WILL LIKELY REFORM TODAY AND CONTINUE INTO THIS EVENING. A FEW OF THESE STORMS COULD BECOME SEVERE...ESPECIALLY OVER NORTHERN ARKANSAS...WITH DAMAGING WINDS AND LARGE HAIL THE MAIN THREATS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO BE POSSIBLE THROUGH THE WEEKEND...MAINLY IN THE AFTERNOON AND EVENING HOURS. THE GREATEST COVERAGE OF THUNDERSTORMS WILL LIKELY BE THROUGH FRIDAY WITH STORMS BECOMING MORE ISOLATED THIS WEEKEND AND NEXT WEEK. WHILE WIDESPREAD AND ORGANIZED SEVERE WEATHER IS NOT EXPECTED...ANY STORM THAT DOES FORM COULD BECOME STRONG TO SEVERE WITH DAMAGING WINDS THE GREATEST THREAT. THROUGH SUNDAY...HIGH TEMPERATURES WILL GENERALLY BE IN THE 90S TO NEAR 100...WITH HEAT INDEX VALUES OF 100 TO 105 DEGREES IN THE AFTERNOONS. EARLY NEXT WEEK...TEMPERATURES COULD PUSH EVEN HIGHER...WITH AFTERNOON HEAT INDICES POSSIBLY RISING ABOVE 105 DEGREES. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. && VISIT NWS LITTLE ROCK ON THE WEB. GO TO HTTP://WEATHER.GOV AND CLICK ON CENTRAL ARKANSAS. 63
In the hours before
Special weather statement, Jul 7, 5:08 PM CDT, 4 hours 9 minutes before
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</html>Special weather statement, Jul 7, 5:14 PM CDT, 4 hours 3 minutes before
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</html>Local storm report, Jul 7, 5:41 PM CDT, 3 hours 36 minutes before
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</html>Local storm report, Jul 7, 5:59 PM CDT, 3 hours 18 minutes before
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</html>Special weather statement, Jul 7, 6:05 PM CDT, 3 hours 12 minutes before
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</html>Local storm report, Jul 7, 6:33 PM CDT, 2 hours 44 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 |
|---|---|---|---|---|
| Jul 7, 9:44 PM CDT | Severe Thunderstorm Warning | LZK | Fulton, Sharp | 46 min |
| Jul 7, 10:18 PM CDT | Special Weather Statement | LZK | Fulton | 47 min |
| Jul 7, 11:27 PM CDT | Special Weather Statement | LZK | Baxter | 48 min |
| Jul 8, 3:06 PM CDT | Heat Advisory | LZK | Arkansas, Bradley, Calhoun, Clark, Cleveland, Conway and 19 more | 29 hr |
| Jul 8, 3:06 PM CDT | Heat Advisory | LZK | Arkansas, Baxter, Bradley, Calhoun, Clark, Cleburne and 28 more | 6 days |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2011Every severe thunderstorm warning in 2011
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.