Alert archive / Mississippi / Tornado Watches in 1999

Tornado Watch 27

January 22, 19994 states

The Storm Prediction Center issued this tornado watch at Jan 22, 1999, 3:00 AM CST for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jan 22, 1999, 3:00 AM CST (09:00 UTC)
Expired
Jan 22, 1999, 9:00 AM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 74 counties

Arkansas County, AR, Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Cleveland County, AR, Columbia County, AR, Crittenden County, AR, Cross County, AR, Desha County, AR, Drew County, AR, Jefferson County, AR, Lee County, AR, Lincoln County, AR, Mississippi County, AR, Monroe County, AR, Phillips County, AR, St. Francis County, AR, Union County, AR, Pemiscot County, MO, Alcorn County, MS, Benton County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Coahoma County, MS, DeSoto County, MS, Grenada County, MS, Holmes County, MS, Humphreys County, MS, Lafayette County, MS, Lee County, MS, Leflore County, MS, Marshall County, MS, Montgomery County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Washington County, MS, Yalobusha County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Davidson County, TN, Decatur County, TN, Dickson County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Hickman County, TN, Humphreys County, TN, Lauderdale County, TN, Lewis County, TN, Madison County, TN, Maury County, TN, McNairy County, TN, Perry County, TN, Shelby County, TN, Tipton County, TN, Wayne County, TN, Williamson County, TN

The radar

The Memphis radar (KNQA), 144 km from the middle of the area, began a volume at 09:03 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.

Warnings issued inside it

30 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jan 22, 3:00 AM CSTTornado WarningMEGChester50 min
Jan 22, 3:08 AM CSTTornado WarningLZKDesha47 min
Jan 22, 3:09 AM CSTSevere Thunderstorm WarningMEGSt. Francis46 min
Jan 22, 3:16 AM CSTSevere Thunderstorm WarningLZKMonroe, Prairie64 min
Jan 22, 3:20 AM CSTSevere Thunderstorm WarningOHXDecatur60 min
Jan 22, 3:21 AM CSTSevere Thunderstorm WarningMEGMarshall49 min
Jan 22, 3:26 AM CSTTornado WarningMEGHenderson49 min
Jan 22, 3:32 AM CSTSevere Thunderstorm WarningOHXHumphreys63 min
Jan 22, 3:36 AM CSTTornado WarningLZKArkansas34 min
Jan 22, 3:40 AM CSTTornado WarningOHXBenton, Houston, Humphreys35 min
Jan 22, 3:48 AM CSTTornado WarningOHXDecatur47 min
Jan 22, 3:51 AM CSTSevere Thunderstorm WarningMEGShelby49 min
Jan 22, 3:54 AM CSTTornado WarningOHXDickson, Montgomery61 min
Jan 22, 4:00 AM CSTSevere Thunderstorm WarningMEGCarroll50 min
Jan 22, 4:18 AM CSTTornado WarningMEGMadison47 min
Jan 22, 4:38 AM CSTTornado WarningOHXHumphreys62 min
Jan 22, 5:00 AM CSTTornado WarningOHXDickson65 min
Jan 22, 5:23 AM CSTSevere Thunderstorm WarningMEGCrittenden47 min
Jan 22, 6:05 AM CSTSevere Thunderstorm WarningMEGFayette50 min
Jan 22, 6:36 AM CSTSevere Thunderstorm WarningMEGHardeman39 min
Jan 22, 7:20 AM CSTSevere Thunderstorm WarningJANAshley50 min
Jan 22, 7:35 AM CSTSevere Thunderstorm WarningMEGHardeman40 min
Jan 22, 7:53 AM CSTTornado WarningJANChicot62 min
Jan 22, 8:07 AM CSTSevere Thunderstorm WarningMEGTallahatchie, Yalobusha48 min
Jan 22, 8:16 AM CSTTornado WarningJANWashington64 min
Jan 22, 8:17 AM CSTSevere Thunderstorm WarningMEGChester33 min
Jan 22, 8:26 AM CSTSevere Thunderstorm WarningMEGPanola34 min
Jan 22, 8:30 AM CSTSevere Thunderstorm WarningMEGLafayette50 min
Jan 22, 8:49 AM CSTTornado WarningJANSunflower61 min
Jan 22, 8:52 AM CSTTornado WarningJANHumphreys63 min

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 9.0 hours before the alert went out and 96 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 00:00Z on 1999-01-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 725 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 00:00Z on 1999-01-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 square meters per square second.1939587897Sfc1 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
725 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
1259 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
283 m²/s²
Significant tornado parameter
0.8
Supercell composite
3.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 21, 9:00 PM CSTTornado WatchSPCArkansas, Ashley, Baxter, Bradley, Calhoun, Chicot and 56 more6 hr
Jan 22, 9:00 AM CSTTornado WatchSPCLee, Phillips6 hr
Jan 21, 8:30 PM CSTTornado WatchSPCAdams, Amite, Claiborne, Copiah, Franklin, Hinds and 6 more7 hr
Jan 22, 3:00 AM CSTTornado WatchSPCIssaquena, Sharkey, Warren, Yazoo6 hr
Jan 22, 9:45 AM CSTTornado WatchSPCAdams, Amite, Franklin, Lawrence, Lincoln, Pike and 2 more6 hr
Jan 22, 12:45 PM CSTTornado WatchSPCTishomingo6 hr
Jan 22, 2:15 PM CSTTornado WatchSPCAdams, Amite, Attala, Carroll, Choctaw, Claiborne and 45 more6 hr
Jan 22, 3:00 PM CSTTornado WatchSPCGeorge, Hancock, Harrison, Jackson, Pearl River, Stone6 hr
Jan 21, 10:00 PM CSTTornado WatchSPCBollinger, Butler, Cape Girardeau, Mississippi, Perry, Scott and 1 more5 hr

Nearby

Tornado Watches in Mississippi, 1999Tornado Watches in Tennessee, 1999Tornado Watches in Arkansas, 1999Every tornado watch in 1999

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.