Alert archive / Louisiana / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 262, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Aug 27, 2005, 5:02 PM CDT for Sabine Parish, Louisiana. It was in force for 58 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 27, 2005, 5:02 PM CDT (22:02 UTC)
- Expired
- Aug 27, 2005, 6:00 PM CDT
- In force
- 58 min
- Issued by
- NWS Shreveport, LA
- Area
- Counties, with a storm outline in the text
County Sabine Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 27, 5:55 PM CDT | TSTM WND DMG | 6 W Many, LA | ONE TREE DOWN ON SHUTEYE ROAD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 53 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 10.0 hours before the alert went out and 105 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
- 761 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 1432 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KSHV 272202
SVRSHV
LAC085-272300-
/O.NEW.KSHV.SV.W.0262.050827T2202Z-050827T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
502 PM CDT SAT AUG 27 2005
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SABINE PARISH IN NORTHWEST LOUISIANA
* UNTIL 600 PM CDT
* AT 454 PM CDT...SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS
IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 20 MILES NORTHEAST
OF ZWOLLE...SOUTHWEST AT 15 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
ZWOLLE AND 7 MILES NORTHWEST OF MANY BY 600 PM CDT
REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE
THUNDERSTORM WARNING FOR...
SABINE PARISH IN NORTHWEST LOUISIANA
UNTIL 600 PM CDT.
LAT...LON 3149 9375 3152 9371 3158 9382 3171 9378
3185 9387 3185 9387 3185 9345 3172 9345
3171 9334 3155 9334 3153 9323 3138 9324
3138 9338 3128 9344 3127 9354 3118 9358
$$1 follow-up statement
000
WWUS54 KSHV 272228
SVSSHV
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
527 PM CDT SAT AUG 27 2005
LAC085-272300-
/O.CON.KSHV.SV.W.0262.000000T0000Z-050827T2300Z/
SABINE LA-
527 PM CDT SAT AUG 27 2005
...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 600 PM CDT FOR
SABINE PARISH...
AT 527 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR ZWOLLE AND MOVING
SOUTH AT 20 MPH. THE WINDS ASSOCIATED WITH THE STORM WILL PRODUCE
DOWNED TREES AND POSSIBLE POWER LINES.
LAT...LON 3149 9375 3152 9371 3158 9382 3171 9378
3185 9387 3185 9387 3185 9345 3172 9345
3171 9334 3155 9334 3153 9323 3138 9324
3138 9338 3128 9344 3127 9354 3118 9358
$$
06What 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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 27, 2:51 PM CDT, 2 hours 11 minutes earlier.
Area forecast discussion, Aug 27, 2:51 PM CDT, 2 hours 11 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 251 PM CDT SAT AUG 27 2005 .DISCUSSION... SHORT WAVE CROSSING NORTHERN PORTION OF CWA WITH OUTFLOW BOUNDARY IN SOUTHERN ZONES...PROVIDING CWA WITH WIDESPREAD CONVECTION THIS AFTERNOON. FOR TONIGHT...SHORT WAVE WILL PASS TO EAST...BUT NUMEROUS OUTFLOWS SHOULD KEEP CONVECTION GOING WELL INTO THE EVENING. HAVE PLACED HIGHEST QPF EAST WEST ACROSS CENTER OF CWA. FOR SUNDAY...LONG WAVE TROF IS FCST ACROSS NORTH CENTRAL OKLAHOMA INTO NORTHWEST TEXAS. HURRICANE KATRINA WILL STILL BE IN NORTHCENTRAL GULF...SO CWA LOOKS TO BE IN BETWEEN SYSTEMS. HOWEVER AVAILABLE MOISTURE WILL BE HIGH AND AFTERNOON HEATING SHOULD BE SUFFICIENT FOR WIDELY SCATTERED CONVECTION. LOOK FOR WIND AND CLOUDS TO BEGIN INCREASING SUNDAY NIGHT WITH RAIN FROM TROPICAL SYSTEM POSSIBLY REACHING EASTERN MOST ZONES BY DAYBREAK MONDAY. AT THIS TIME WILL RAISE POPS TO 50 PERCENT EAST...BUT EXPECT THERE WILL BE A SHARP LINE BETWEEN RAIN AND NO RAIN. STRONG WINDS HOWEVER WILL AFFECT ALL OF CWA. WITH CENTRAL PRESSURE EXPECTED TO BE FAIRLY LOW IN KATRINA WHEN IT MOVES INLAND...WIND GUSTS COULD EASILY REACH 35 MPH IN EASTERN HALF OF CWA MONDAY AFTERNOON INTO MONDAY EVENING. THIS MAY HAVE TO BE INCREASED IN FUTURE FORECAST DEPENDING ON ACTUAL TRACK. DRY AND SLIGHTLY COOLER WEATHER TO FOLLOW THROUGH REMAINDER OF WEEK. && .PRELIMINARY POINT TEMPS/POPS... SHV 76 97 76 93 / 40 20 10 20 MLU 75 93 75 86 / 40 20 20 50 DEQ 73 96 72 92 / 20 20 10 20 TXK 76 97 76 92 / 20 20 10 20 ELD 74 96 74 89 / 30 20 10 40 TYR 76 98 75 94 / 30 20 10 20 GGG 75 97 74 93 / 30 20 10 20 LFK 74 99 74 94 / 20 20 10 20 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...NONE. LA...NONE. OK...NONE. TX...NONE. && 14
Hazardous weather outlook, Aug 27, 6:00 AM CDT, 11 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 600 AM CDT SAT AUG 27 2005 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096- 097-108>112-124>126-136>138-149>153-165>167-271700- ANGELINA-BIENVILLE-BOSSIER-BOWIE-CADDO-CALDWELL-CAMP-CASS-CHEROKEE- CLAIBORNE-COLUMBIA-DE SOTO-FRANKLIN-GRANT-GREGG-HARRISON-HEMPSTEAD- HOWARD-JACKSON-LA SALLE-LAFAYETTE-LINCOLN-LITTLE RIVER-MARION- MCCURTAIN-MILLER-MORRIS-NACOGDOCHES-NATCHITOCHES-NEVADA-OUACHITA- PANOLA-RED RIVER LA-RED RIVER TX-RUSK-SABINE LA-SABINE TX- SAN AUGUSTINE-SEVIER-SHELBY-SMITH-TITUS-UNION AR-UNION LA-UPSHUR- WEBSTER-WINN-WOOD- 600 AM CDT SAT AUG 27 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST OKLAHOMA...NORTHEAST TEXAS...SOUTHWEST ARKANSAS...NORTHWEST...AND NORTH CENTRAL LOUISIANA. .DAY ONE...TODAY AND TONIGHT... A HEAT ADVISORY IS EFFECT THROUGH 7 PM THIS EVENING. OTHERWISE...NO HAZARDOUS WEATHER IS EXPECTED. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY... NO HAZARDOUS WEATHER IS EXPECTED. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF EMERGENCY MANAGERS...SKYWARN NETWORKS...AND STORM SPOTTERS...WILL NOT BE NEEDED THIS AFTERNOON OR TONIGHT. 44
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 4:38 PM CDT | Severe Thunderstorm Warning | SHV | De Soto | 67 min |
| Aug 27, 4:47 PM CDT | Severe Thunderstorm Warning | SHV | Bossier, Caddo | 43 min |
| Aug 27, 4:47 PM CDT | Severe Thunderstorm Warning | SHV | Natchitoches, Winn | 58 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2005Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.