Alert archive / Arkansas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 25, NWS Memphis, TN

January 29, 2008Clay County, Randolph County, Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Jan 29, 2008, 12:59 PM CST for Clay County, Randolph County, Arkansas. It was in force for 31 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
Jan 29, 2008, 12:59 PM CST (18:59 UTC)
Expired
Jan 29, 2008, 1:30 PM CST
In force
31 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon

Counties Clay County, AR, Randolph County, AR

The radar

The Memphis radar (KNQA), 136 km from the middle of the area, began a volume at 19:00 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.

IssuedProductOfficeLasted
Jan 29, 11:32 AM CSTTornado WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 7.0 hours before the alert went out and 183 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-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2008-01-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 19 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2008-01-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 329 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
19 J/kg
Mixed-layer CIN
-218 J/kg
Mixed-layer LCL
506 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
329 m²/s²
0-3 km storm-relative helicity
339 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 29, 11:40 AM CST, 1 hour 19 minutes earlier.

Area forecast discussion, Jan 29, 11:40 AM CST, 1 hour 19 minutes before
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Hazardous weather outlook, Jan 29, 10:38 AM CST, 2 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
1038 AM CST TUE JAN 29 2008

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-
MSZ001>017-020>024-TNZ001>004-019>021-048>055-088>092-301845-
ALCORN-BENTON MS-CALHOUN-CARROLL-CHESTER-CHICKASAW-CLAY-COAHOMA-
CRAIGHEAD-CRITTENDEN-CROCKETT-CROSS-DESOTO-DECATUR-DUNKLIN-DYER-
FAYETTE-GIBSON-GREENE-HARDEMAN-HARDIN-HAYWOOD-HENDERSON-HENRY-
ITAWAMBA-LAFAYETTE-LAKE-LAUDERDALE-LAWRENCE-LEE AR-LEE MS-MADISON-
MARSHALL-MCNAIRY-MISSISSIPPI-MONROE-OBION-PANOLA-PEMISCOT-
PHILLIPS-POINSETT-PONTOTOC-PRENTISS-QUITMAN-RANDOLPH-SHELBY-
ST. FRANCIS-TALLAHATCHIE-TATE-TIPPAH-TIPTON-TISHOMINGO-TUNICA-
UNION-WEAKLEY-YALOBUSHA-
1038 AM CST TUE JAN 29 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST ARKANSAS...
THE MISSOURI BOOTHEEL...NORTH MISSISSIPPI...AND WEST TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

THERE IS A MODERATE RISK FOR SEVERE THUNDERSTORMS ALONG AND NORTH
OF A WALNUT RIDGE ARKANSAS TO FORREST CITY ARKANSAS TO MEMPHIS
TENNESSEE TO SAVANNAH TENNESSEE LINE.

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS ACROSS THE REST OF
THE MIDSOUTH.

THE MAIN HAZARD IS DAMAGING WINDS OVER 60 MPH...THOUGH TORNADOES AND
HAIL ARE POSSIBLE AS WELL.

THE MOST FAVORABLE TIME FOR SEVERE WEATHER WILL BE FROM 1 PM TO
5 PM CST WEST OF THE MISSISSIPPI RIVER AND BETWEEN 2 PM AND
9 PM CST FOR AREAS EAST OF THE MISSISSIPPI RIVER.

MOST OF THE SEVERE WEATHER IS EXPECTED ALONG A FAST MOVING COLD
FRONT LATE THIS AFTERNOON AND EVENING. IN ADDITION...SOME SEVERE
STORMS ARE POSSIBLE AHEAD OF A COLD FRONT.

A WIND ADVISORY IS ALSO IN EFFECT FOR THE ENTIRE MIDSOUTH TODAY.
STRONG WINDS WILL CONTINUE THROUGH THE DAY AND INTO THIS EVENING
BOTH AHEAD AND BEHIND THE COLD FRONT. WINDS AHEAD OF THE FRONT
WILL BE SUSTAINED BETWEEN 20 AND 30 MPH...WITH GUSTS OVER 40 MPH.
ALONG AND IMMEDIATELY BEHIND THE FRONT...SUSTAINED WINDS BETWEEN
25 AND 35 MPH...WITH GUSTS OVER 50 MPH WILL BE LIKELY. THESE WINDS
MAY BE STRONG ENOUGH TO DOWN TREES AND POWER LINES AND LEAD TO
SCATTERED POWER OUTAGES.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A LOW PRESSURE SYSTEM WILL MOVE ACROSS PARTS OF THE MIDSOUTH THURSDAY
INTO THURSDAY NIGHT. DEPENDING UPON THE EXACT TRACK OF THIS LOW
PRESSURE SYSTEM...THERE MAY BE ENOUGH COLD AIR DRAWN INTO THE
SYSTEM TO ALLOW RAIN TO CHANGE TO A PERIOD OF SNOW.

THE GREATEST POTENTIAL FOR ACCUMULATING SNOWFALL WILL BE ACROSS
PORTIONS OF NORTHEAST ARKANSAS...THE MISSOURI BOOTHEEL...AND
NORTHWEST TENNESSEE THURSDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IN SUPPORT OF SEVERE WEATHER OPERATIONS
WILL BE NECESSARY THIS AFTERNOON AND EVENING ACROSS THE
ENTIRE MIDSOUTH. SPOTTERS ARE ALSO URGED TO REPORT ANY NON
THUNDERSTORM WIND DAMAGE TO THE NATIONAL WEATHER SERVICE
OFFICE IN MEMPHIS.

MBS

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 29, 3:14 PM CSTHigh Wind WarningMEGAlcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more5 hr
Jan 29, 5:38 PM CSTTornado WarningMEGHenry22 min
Jan 29, 2:16 PM CSTSevere Thunderstorm WarningMEGCrittenden, Cross, St. Francis44 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2008Every severe thunderstorm warning in 2008

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.