Alert archive / Mississippi / Tornado Watches in 2005
Tornado Watch 91
The Storm Prediction Center issued this tornado watch at Mar 26, 2005, 8:35 PM CST for 44 counties in Mississippi. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 26, 2005, 8:35 PM CST (02:35 UTC)
- Expired
- Mar 27, 2005, 4:00 AM CST
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 44 counties
Amite County, MS, Attala County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Itawamba County, MS, Jasper County, MS, Jefferson Davis County, MS, Jones County, MS, Lafayette County, MS, Lamar County, MS, Lawrence County, MS, Leake County, MS, Lee County, MS, Lincoln County, MS, Lowndes County, MS, Madison County, MS, Marion County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Pike County, MS, Pontotoc County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Walthall County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Yazoo County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 7 km from the middle of the area, began a volume at 02:38 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
4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 26, 8:38 PM CST | Tornado Warning | JAN | Jasper | 67 min |
| Mar 26, 8:56 PM CST | Tornado Warning | JAN | Covington, Simpson, Smith | 49 min |
| Mar 26, 9:02 PM CST | Severe Thunderstorm Warning | JAN | Newton | 28 min |
| Mar 26, 9:34 PM CST | Tornado Warning | JAN | Jasper | 56 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 2.6 hours before the alert went out and 14 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
- 356 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1347 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 122 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 270232
SEL1
SPC WW 270232
MSZ000-271000-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 91
NWS STORM PREDICTION CENTER NORMAN OK
835 PM CST SAT MAR 26 2005
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHERN...CENTRAL AND EASTERN MISSISSIPPI
EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 835 PM UNTIL
400 AM CST.
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
DESTRUCTIVE TORNADOES...LARGE HAIL TO 2 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE MILES
EAST AND WEST OF A LINE FROM 15 MILES WEST NORTHWEST OF TUPELO
MISSISSIPPI TO 20 MILES SOUTHEAST OF MC COMB MISSISSIPPI. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU1).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 88. WATCH NUMBER 88 WILL NOT BE IN EFFECT AFTER 835
PM CST. CONTINUE...WW 87...WW 89...WW 90...
DISCUSSION...SUPERCELLS EXPECTED TO CONTINUE DEVELOPING AND
INTENSIFYING INVOF SURFACE WARM FRONT ROUGHLY PARALLELING I-20.
OTHER STORMS /INCLUDING ONE OR TWO LEFT MOVERS/ MAY SPREAD NNEWD
INTO RECOVERING BNDRY LAYER ENVIRONMENT OVER THE N CNTRL PART OF THE
STATE. STRENGTHENING LOW TO MID LEVEL SHEAR SHOULD MAINTAIN TORNADO
THREAT INTO THE NIGHT.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 24035.
...CORFIDI
342,0880 305,0891 305,0910 342,0895SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 26, 8:45 PM CST | Tornado Watch | SPC | Clarke, Forrest, George, Greene, Hancock, Harrison and 6 more | 7 hr |
| Mar 26, 9:18 PM CST | Mesoscale Discussion | SPC | Bolivar, Coahoma, Quitman, Sunflower, Tunica, Washington | 57 min |
| Mar 26, 10:43 PM CST | Mesoscale Discussion | SPC | Clarke, Jasper, Lauderdale | 62 min |
| Mar 26, 11:32 PM CST | Mesoscale Discussion | SPC | Attala, Bolivar, Calhoun, Carroll, Chickasaw, Choctaw and 31 more | 58 min |
| Mar 27, 1:14 AM CST | Mesoscale Discussion | SPC | Clarke, Covington, Forrest, George, Greene, Hancock and 23 more | 91 min |
| Mar 27, 3:27 AM CST | Mesoscale Discussion | SPC | Amite, Chickasaw, Choctaw, Clarke, Clay, Covington and 31 more | 33 min |
Nearby
Tornado Watches in Mississippi, 2005Every tornado watch in 2005
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.