Alert archive / Arkansas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 175, NWS Little Rock, AR

May 13, 2002Arkansas County, Monroe County, Prairie County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at May 13, 2002, 2:24 AM CDT for Arkansas County, Monroe County, Prairie County, Arkansas. It was in force for 51 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: May 13, 2002, 2:24 AM CDT (07:24 UTC)
Expired: May 13, 2002, 3:15 AM CDT
In force: 51 min
Issued by: NWS Little Rock, AR
Area: Counties, with a storm outline in the text

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 07:26 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
May 12, 10:45 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
May 13, 1:00 AM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 7.4 hours before the alert went out and 133 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: 1823 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1162 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 121 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 5.6

Open this sounding in Storm Lab

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 May 12, 1:58 PM CDT, 12 hours 26 minutes earlier.

Area forecast discussion, May 12, 1:58 PM CDT, 12 hours 26 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
158 PM CDT SUN MAY 12 2002

RUNNING BEHIND DUE TO A VARIETY OF EQUIPMENT ISSUES SO WILL BE BRIEF.

COLD FRONT NEAR A TULSA-JOPLIN LINE AT 130 PM. FRONT WILL SWEEP
ACROSS OUR CWFA BETWEEN 8 PM THIS EVENING AND 9 AM MONDAY MORNING.
EXPECT FRONT TO BE ACCOMPANIED BY SQUALL LINE WITH SEVERE WEATHER
AND HEAVY RAIN POTENTIAL. HEAVIEST RAIN EXPECTED OVER SOUTHEAST HALF
OF CWFA...WHERE FLASH FLOOD GUIDANCE VALUES ARE ALSO LOW...BUT WILL
FOREGO FLOOD WATCH DUE TO EXPECTED BRIEF DURATION OF RAINS. SEVERAL
AREAS COULD SEE ONE TO TWO INCHES IN A SHORT TIME AND WILL MENTION
HEAVY RAIN IN ZONES.

LOW CLOUDS WILL BE A LITTLE SLOW TO SHRED OUT MONDAY IN STRONG COLD
ADVECTION REGIME SO WILL UNDERCUT FWC MOS AND LEAN TOWARD COOLER
MAV. DRY WEATHER THROUGH AT LEAST WEDNESDAY AND POSSIBLY
LONGER...WITH CONSIDERABLE UNCERTAINTY IN THE EXTENDED PERIOD.
CHANGES WILL BE MINIMAL AS FOCUS IS ON FIRST 24 HOURS.

HRO 51/69 48/76 52 +000
LIT 62/75 51/80 55 9100
HOT 62/73 50/82 55 9-00
PBF 64/72 53/81 56 8300

.LZK...NONE.

54

In the hours before

Local storm report, May 12, 11:02 PM CDT, 3 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK, AR
1102 PM CDT SUN MAY 12 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0920 PM    4 W BOONEVILLE            AR   60 MPH TSTM WIND GUST
05/12/02   LOGAN                          HAM RADIO OPERATOR
                                          REPORTED

0920 PM    4 W BOONEVILLE            AR   WIND DAMAGE
05/12/02   LOGAN                          TREE LIMBS DOWN. REPORTED
                                          BY HAM RADIO OPERATOR.

0935 PM    3 E CHISMVILLE            AR   WIND DAMAGE
05/12/02   LOGAN                          TREE LIMBS DOWN. REPORTED
                                          BY HAM RADIO OPERATOR

57

Special weather statement, May 13, 1:00 AM CDT, 1 hour 24 minutes before

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Local storm report, May 13, 1:30 AM CDT, 54 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
May 12, 7:54 PM CDT	Severe Thunderstorm Warning	LZK	Boone	51 min
May 12, 8:55 PM CDT	Severe Thunderstorm Warning	LZK	Logan, Scott	65 min
May 12, 9:28 PM CDT	Severe Thunderstorm Warning	LZK	Polk	62 min
May 12, 10:23 PM CDT	Severe Thunderstorm Warning	LZK	Yell	42 min
May 12, 10:34 PM CDT	Severe Thunderstorm Warning	LZK	Pope	41 min
May 12, 10:49 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery	41 min
May 12, 10:56 PM CDT	Severe Thunderstorm Warning	LZK	Conway, Perry, Van Buren	39 min
May 12, 11:12 PM CDT	Severe Thunderstorm Warning	LZK	Pike	33 min
May 12, 11:18 PM CDT	Severe Thunderstorm Warning	LZK	Cleburne, Stone	47 min
May 12, 11:33 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Garland, Hot Spring	52 min
May 12, 11:40 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner	40 min
May 13, 12:00 AM CDT	Severe Thunderstorm Warning	LZK	Independence	40 min
May 13, 12:08 AM CDT	Severe Thunderstorm Warning	LZK	Saline	42 min
May 13, 12:17 AM CDT	Severe Thunderstorm Warning	LZK	Pulaski	43 min
May 13, 12:22 AM CDT	Severe Thunderstorm Warning	LZK	White	38 min
May 13, 2:07 AM CDT	Severe Thunderstorm Warning	LZK	Jefferson	38 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2002 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.