Alert archive / Arkansas / Tornado Warnings in 2010

Tornado Warning 80, NWS Little Rock, AR

July 11, 2010Arkansas County, Monroe County, Prairie County, Arkansas

NWS Little Rock, AR issued this tornado warning at Jul 11, 2010, 6:15 PM CDT for Arkansas County, Monroe County, Prairie County, Arkansas. It was in force for 20 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 11, 2010, 6:15 PM CDT (23:15 UTC)
Expired: Jul 11, 2010, 6:35 PM CDT
In force: 20 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

Counties Arkansas County, AR, Monroe County, AR, Prairie County, AR

The radar

The Little Rock radar (KLZK), 85 km from the middle of the area, began a volume at 23:15 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

Shreveport, LA (KSHV), launched 12:00Z, 11.3 hours before the alert went out and 322 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1741 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 842 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 108 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Jul 11, 3:21 PM CDT, 2 hours 54 minutes earlier.

Area forecast discussion, Jul 11, 3:21 PM CDT, 2 hours 54 minutes before

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Hazardous weather outlook, Jul 11, 5:00 AM CDT, 13 hours 15 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LITTLE ROCK AR
500 AM CDT SUN JUL 11 2010

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-121000-
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 SUN JUL 11 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP AGAIN TODAY INTO
TONIGHT. GIVEN INCREASED INSTABILITY OVER THE AREA...STRONG TO
SEVERE STORMS WILL BE POSSIBLE...ESPECIALLY NORTH OF THE INTERSTATE
40 CORRIDOR. THE MAIN THREAT FROM THESE STORMS WILL BE
DAMAGING STRAIGHT LINE WINDS AND HEAVY RAINFALL. THE MOST LIKELY
TIME FOR STRONG TO SEVERE STORMS WILL BE LATE THIS AFTERNOON INTO
THE OVERNIGHT HOURS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO BE POSSIBLE
EARLY THIS WEEK BEFORE BECOMING MORE ISOLATED FROM MIDWEEK ON.
STRONG OR SEVERE STORMS WILL BE POSSIBLE AGAIN LATE MONDAY AFTERNOON
THROUGH EARLY TUESDAY MORNING...ESPECIALLY NORTH OF THE INTERSTATE
40 CORRIDOR. THE GREATEST THREATS WILL BE DAMAGING STRAIGHT LINE
WINDS AND HEAVY RAINFALL.

A RETURN TO MORE HOT AND HUMID CONDITIONS APPEARS LIKELY BEGINNING
DURING THE MIDDLE OF NEXT WEEK WITH HEAT INDEX VALUES POSSIBLY
CLIMBING TOWARD OR ABOVE 100 FROM MIDWEEK ON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

&&

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 11, 3:45 PM CDT, 2 hours 30 minutes before

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Special weather statement, Jul 11, 4:07 PM CDT, 2 hours 8 minutes before

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Local storm report, Jul 11, 4:50 PM CDT, 1 hour 25 minutes before

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Special weather statement, Jul 11, 4:54 PM CDT, 1 hour 21 minutes before

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Local storm report, Jul 11, 4:55 PM CDT, 1 hour 20 minutes before

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Special weather statement, Jul 11, 5:35 PM CDT, 40 minutes before

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The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 11, 2:22 PM CDT	Flash Flood Warning	LZK	Faulkner	2 hr
Jul 11, 2:41 PM CDT	Flash Flood Warning	LZK	Boone, Marion, Newton, Searcy	3 hr
Jul 11, 4:17 PM CDT	Severe Thunderstorm Warning	LZK	Conway, Faulkner, Perry	28 min
Jul 11, 4:48 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Prairie	27 min
Jul 11, 4:58 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Lonoke, Pulaski, White	47 min
Jul 11, 5:01 PM CDT	Tornado Warning	LZK	Arkansas, Lonoke, Monroe, Prairie	29 min
Jul 11, 5:16 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Pike	44 min
Jul 11, 5:17 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Pulaski	43 min
Jul 11, 5:24 PM CDT	Tornado Warning	LZK	Arkansas, Lonoke, Monroe, Prairie	51 min
Jul 11, 6:14 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Prairie	46 min
Jul 11, 6:17 PM CDT	Severe Thunderstorm Warning	LZK	Pulaski	28 min

Nearby

Tornado Warnings in Arkansas, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.