Alert archive / Louisiana / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 403, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Oct 18, 2011, 4:49 AM CDT for 5 parishes in Louisiana; Union County, Arkansas. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 18, 2011, 4:49 AM CDT (09:49 UTC)
- Expired
- Oct 18, 2011, 5:45 AM CDT
- In force
- 56 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
Counties Union County, AR, Bienville Parish, LA, Claiborne Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Union Parish, LA
The radar
The Shreveport radar (KSHV), 123 km from the middle of the area, began a volume at 09:50 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
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 00:00Z, 9.8 hours before the alert went out and 114 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2329 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 163 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
733
WUUS54 KSHV 180949
SVRSHV
ARC139-LAC013-027-049-061-111-181045-
/O.NEW.KSHV.SV.W.0403.111018T0949Z-111018T1045Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
449 AM CDT TUE OCT 18 2011
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN JACKSON PARISH IN NORTH CENTRAL LOUISIANA...
LINCOLN PARISH IN NORTH CENTRAL LOUISIANA...
THIS INCLUDES THE CITIES OF...RUSTON...GRAMBLING...
WESTERN UNION PARISH IN NORTH CENTRAL LOUISIANA...
NORTHEASTERN BIENVILLE PARISH IN NORTHWEST LOUISIANA...
EASTERN CLAIBORNE PARISH IN NORTHWEST LOUISIANA...
WESTERN UNION COUNTY IN SOUTH CENTRAL ARKANSAS...
THIS INCLUDES THE CITIES OF...JUNCTION CITY...EL DORADO...
* UNTIL 545 AM CDT
* AT 440 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
A BAND OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS
IN EXCESS OF 60 MPH. THE STORMS WERE LOCATED FROM NEAR ANTIOCH TO
ARCADIA AND 6 MILES SOUTH OF ARCADIA...AND MOVING NORTHEAST AT 45
MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BERNICE...WESSON...DUBACH...AND FARMERVILLE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THESE STORMS HAVE A HISTORY OF PRODUCING WIND DAMAGE ACROSS PARTS OF
NORTHWEST LOUISIANA. SEEK SHELTER INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!
&&
LAT...LON 3258 9241 3249 9242 3241 9292 3297 9307
3328 9263 3290 9237 3258 9233
TIME...MOT...LOC 0945Z 241DEG 42KT 3268 9288
$$
061 follow-up statement
509
WWUS54 KSHV 181031
SVSSHV
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
531 AM CDT TUE OCT 18 2011
LAC013-027-049-061-181040-
/O.CAN.KSHV.SV.W.0403.000000T0000Z-111018T1045Z/
LINCOLN LA-JACKSON LA-CLAIBORNE LA-BIENVILLE LA-
531 AM CDT TUE OCT 18 2011
...THE SEVERE THUNDERSTORM WARNING FOR BIENVILLE...CLAIBORNE...
JACKSON AND LINCOLN PARISHES IS CANCELLED...
LAT...LON 3259 9241 3267 9241 3267 9248 3304 9271
3328 9263 3290 9237 3258 9234
TIME...MOT...LOC 1030Z 241DEG 42KT 3293 9233
$$
ARC139-LAC111-181045-
/O.CON.KSHV.SV.W.0403.000000T0000Z-111018T1045Z/
UNION AR-UNION LA-
531 AM CDT TUE OCT 18 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 AM CDT
FOR UNION COUNTY...AND UNION PARISH...
AT 530 AM CDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
FROM EAST OF JUNCTION CITY TO NEAR FARMERVILLE AND DOWNSVILLE
LOUISIANA. THIS STORM WAS MOVING NORTHEAST NEAR 40 MPH. WINDS TO NEAR
60 MPH WILL BE POSSIBLE WITH THIS STORM.
LAT...LON 3259 9241 3267 9241 3267 9248 3304 9271
3328 9263 3290 9237 3258 9234
TIME...MOT...LOC 1030Z 241DEG 42KT 3293 9233
$$
13What 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 Oct 18, 3:23 AM CDT, 1 hour 26 minutes earlier.
Area forecast discussion, Oct 18, 3:23 AM CDT, 1 hour 26 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
323 AM CDT TUE OCT 18 2011
.DISCUSSION...
TRICKY FORECAST TODAY WITH A MULTITUDE OF CONCERNS INCLUDING
TIMING OF PRECIP...TEMPERATURES...WINDS AND FIRE WEATHER THREAT.
FRONTAL POSITION AS OF 08Z WAS NEAR A PRX TO TYR LINE AND QUICKLY
ADVANCING SOUTH AND EAST. PREFRONTAL TROUGH AXIS WAS ORIENTED NEAR
A CAMDEN...SHREVEPORT TO COLLEGE STATION LINE. AS FAR AS TIMING OF
PRECIP...THE BACK EDGE OF THE CONVECTION CURRENTLY ACROSS
SOUTHEAST OKLAHOMA AND JUST NOW EXITING OUR EXTREME WESTERN ZONES
IN NORTHEAST TEXAS. GIVEN THE FACT THAT OUR FORECAST PACKAGE GOES
OUT AT 4 AM BUT FOR VERIFICATION PURPOSES...DOES NOT BEGIN UNTIL
12Z...WILL CLEAR THE PRECIP OUT OF AREAS NORTH AND WEST OF A LINE
FROM HOPE ARKANSAS...TO NEAR MARSHALL AND ALTO TEXAS. WILL KEEP A
BUFFER OF CHANCE POPS EAST OF THIS LINE ACROSS DEEP EAST TEXAS...
MOST OF NW LA AND SOUTHERN ARKANSAS EVEN THOUGH BY VERIFICATION
TIME (12Z)...THE BACK EDGE OF PRECIPITATION SHOULD BE NEAR A
NATCHITOCHES LA...EL DORADO AR LINE. ACROSS OUR EXTREME EASTERN
ZONES...WILL KEEP A 3 HR WINDOW OF LIKELY POPS BUT ALL
PRECIPITATION SHOULD BE PRETTY MUCH THROUGH OUR REGION AFTER 15Z.
CONCERNING SEVERITY OF THE CONVECTION...LAPSE RATES REMAIN RATHER
HIGH IN THE 700-500MB LAYER...SUGGESTING THAT A LARGE
HAIL/DAMAGING WIND THREAT CANNOT BE RULED OUT WITH ANY ISOLATED
ACTIVITY BUT WILL NOT MAKE THAT MENTION IN THE ZONES ATTM WITH THE
KEY WORDS BEING A VERY ISOLATED THREAT.
SFC ANALYSIS AT 08Z SHOWING A VERY STRONG PRESSURE GRADIENT ACROSS
OK INTO N TX WITH PRESSURE GRADIENT GUSTS APPROACHING 30-35KTS.
LAKE WIND ADVISORY WAS ISSUED BY THE EVENING SHIFT LAST NIGHT AND
THIS LOOKS GOOD THROUGHOUT THE DAY. THE CLEARING LINE IS CURRENTLY
APPROACHING THE DFW METROPLEX AND WE SHOULD SEE THIS WORKING ITS
WAY INTO OUR WESTERN ZONES IF NOT BY LATE MORNING...THEN CERTAINLY
BY AFTERNOON.
CONCERNING TEMPERATURES...WITH OUR WESTERN ZONES EXPECTED TO SEE
SOME SUN LATER TODAY...TEMPERATURES SHOULD REBOUND SLIGHTLY BUT
HIGHS ACROSS OUR EASTERN ZONES WILL LIKELY MAX OUT THIS MORNING
AND SLOWLY FALL OR STAY STEADY THROUGHOUT THE DAY GIVEN THE FACT
THAT THE CLOUDS SHOULD STAY IN.
FINALLY...AND PERHAPS MOST IMPORTANTLY...THE FIRE DANGER THREAT
WILL LIKELY INCREASE TODAY ACROSS OUR WESTERN ZONES GIVEN THE
STRONG PRESSURE GRADIENT WINDS ALONG WITH CLEARING SKIES.
DEWPOINTS BY THIS AFTERNOON WILL LIKELY FALL INTO THE 30S WITH MIN
RH VALUES AROUND 30% AS WELL ACROSS THE CURRENT FIRE WEATHER WATCH
AREA OF NORTHEAST TEXAS AND MCCURTAIN COUNTY IN SOUTHEAST
OKLAHOMA. STP VALUES PER WSR 88D SHOWING THAT RAINFALL AMOUNTS OF
ONE QUARTER TO ONE HALF INCH HAVE BEEN PRETTY WIDESPREAD NORTH OF
THE I-20 CORRIDOR OF NORTHEAST TEXAS...INCLUDING THE TYLER AREA
AND VICINITY...AS WELL AS ACROSS MCCURTAIN COUNTY. THE SUSTAINED
NATURE OF THE PRESSURE GRADIENT WINDS AND CLEARING SKIES SHOULD
ALLOW FOR SOME DRYING OF FUELS ACROSS OUR WESTERN ZONES LATER
TODAY AND WHILE THE WIND CRITERIA FOR AN UPGRADE TO RED FLAG
WARNING CONDITIONS WILL CERTAINLY BE MET...THE RH VALUES NEEDED
FOR AN UPGRADE WILL LIKELY FALL JUST SHORT OF CRITERIA. FOR THIS
REASON...WE HAVE DECIDED TO KEEP THE FIRE WEATHER WATCH IN PLACE
AND IF THE DAY SHIFT SEES THAT AN UPGRADE IS NECESSARY...THEN THEY
CAN MAKE THAT CALL. FOR FURTHER DETAILS...SEE THE FIRE WEATHER
PORTION OF THE DISCUSSION BELOW.
WINDS WILL DECOUPLE QUICKLY THIS EVENING BUT WILL NOT GO CALM.
THUS...FEEL LIKE THE COLDEST NIGHT WILL BE WEDNESDAY NIGHT INTO
THE PREDAWN HOURS THURSDAY MORNING AS THE SFC RIDGE MOVES INTO NE
TX AND EASTERN OKLAHOMA. COULD SEE TEMPERATURES DROP TO NEAR OR
JUST BELOW FREEZING ACROSS PORTIONS OF SOUTHEAST OKLAHOMA AND
SOUTHWEST ARKANSAS WITH PERHAPS OUR FIRST FREEZE WARNING OF THE
SEASON BECOMING NECESSARY WEDNESDAY NIGHT IN OUR NORTHERN ZONES.
PATCHY FROST WILL BE POSSIBLE ELSEWHERE...ESPECIALLY INTO PORTIONS
OF NE TX AND NW LA.
FOR THE EXTENDED...BOTH THE GFS AND ECMWF ARE IN BETTER AGREEMENT
NOW CONCERNING ANOTHER SHORTWAVE THAT MOVES INTO THE SOUTHERN PLAINS/
LOWER MISS VALLEY LATE SATURDAY INTO SUNDAY. TIMING IS JUST A LITTLE
SLOWER WITH THE GFS SO TRIED TO BALANCE THE TWO PROGS FOR THE WEEKEND
FORECAST.
PRELIMS TO FOLLOW...13.
&&
.AVIATION...
COMPLEX FCST FOR THE 12Z TAF PERIOD. STRONG...FAST-MOVING COLD FRONT
WILL MOVE ACROSS THE FOUR STATE REGION AND IS EXPECTED TO BE NEAR A
KBLR-KSHV-KLFK LINE BY 18/12Z. FRONT WILL MAKE QUICK PROGRESS EWD
AND SHOULD CLEAR THE REMAINDER OF THE AREA BY 18/18Z. AHEAD OF THE
FRONT...A LINE OF SHWRS AND TSTMS WILL ALSO MOVE QUICKLY EAST.
STRONGEST CONVECTION WILL LIKELY BE SOUTH OF THE I-20 CORRIDOR AND
KLFK MAY JUST CATCH THE TAIL END OF THE LINE. GUSTY WINDS AND MVFR
OR LOWER CIGS/VSBYS WILL ALSO BE POSSIBLE WITH THE CONVECTION. TEMPO
GROUPS WILL BE NEEDED UNTIL THE FRONT PASSES.
PRECIP WILL END BEHIND THE FRONT. HOWEVER...VERY STRONG NWLY WINDS
ARE EXPECTED IN ITS WAKE. SUSTAINED WINDS OF 15 TO 20 KTS WITH GUSTS
BETWEEN 20 AND 30 KTS ARE LIKELY. CANNOT RULE OUT THE POSSIBILITY OF
A FEW GUSTS ABOVE 30 KTS ESPECIALLY ACROSS NE TX...AS SOME OF THESE
STRONGER GUSTS HAVE BEEN OCCURRING ACROSS N TX AND OK. WINDS SHOULD
QUICKLY DIMINISH TO AROUND 10 KTS AFTER 19/00Z AS THE ATMOSPHERE
DECOUPLES. ANY MVFR CONDITIONS SHOULD QUICKLY IMPROVE TO VFR BEHIND
THE FRONT AND SKIES WILL GRADUALLY CLEAR AS THE CONVECTION MOVES
EAST AND VERY DRY AIR FILTERS INTO THE AREA. /09/
&&
.FIRE WEATHER...
STRONG AND GUSTY NORTHWEST WINDS ARE EXPECTED AS A COLD FRONT MOVES
ACROSS THE REGION TUESDAY. SUSTAINED WIND SPEEDS OF 20 TO 25 MPH
WITH GUSTS BETWEEN 30 AND 35 MPH ARE LIKELY ACROSS MOST OF THE AREA.
SHOWERS AND THUNDERSTORMS WILL PROVIDE MUCH NEEDED RAINFALL.
HOWEVER...THE COMBINATION OF COLD AND DRY AIR BEHIND THE FRONT AND
THE STRONG WINDS MAY LEAD TO FUELS QUICKLY DRYING FROM ANY RAINFALL
THAT WAS RECEIVED EARLY TUESDAY MORNING. DUE TO THESE FACTORS AND
THE EXCEPTION DROUGHT CONDITIONS ACROSS EAST TEXAS AND SOUTHEAST
OKLAHOMA...THE FIRE WEATHER WATCH WILL CONTINUE THROUGH TUESDAY
EVENING. THE POSSIBILITY FOR RED FLAG CONDITIONS APPEAR TO INCREASE
ON WEDNESDAY AS STRONG AND GUSTY WINDS RETURN AND MINIMUM RH VALUES
FALL BETWEEN 20 AND 25 PERCENT. /09/
&&
.PRELIMINARY POINT TEMPS/POPS...
SHV 67 43 68 38 69 / 30 0 0 0 0
MLU 69 43 67 36 66 / 60 0 0 0 0
DEQ 67 37 65 31 65 / 10 0 0 0 0
TXK 67 40 65 36 65 / 10 0 0 0 0
ELD 64 39 64 33 65 / 30 0 0 0 0
TYR 68 43 68 38 70 / 10 0 0 0 0
GGG 68 42 68 36 69 / 10 0 0 0 0
LFK 70 43 70 38 73 / 30 0 0 0 0
&&
.SHV WATCHES/WARNINGS/ADVISORIES...
AR...LAKE WIND ADVISORY FROM 9 AM THIS MORNING TO 7 PM CDT THIS
EVENING FOR THE FOLLOWING ZONES: ARZ061-071>073.
LAKE WIND ADVISORY FROM 6 AM THIS MORNING TO 7 PM CDT THIS
EVENING FOR THE FOLLOWING ZONES: ARZ050-051-059-060-070.
LA...LAKE WIND ADVISORY FROM 9 AM THIS MORNING TO 7 PM CDT THIS
EVENING FOR THE FOLLOWING ZONES: LAZ001>006-010>014-017>022.
OK...LAKE WIND ADVISORY FROM 6 AM THIS MORNING TO 7 PM CDT THIS
EVENING FOR THE FOLLOWING ZONES: OKZ077.
FIRE WEATHER WATCH FROM 10 AM CDT THIS MORNING THROUGH THIS
EVENING FOR THE FOLLOWING ZONES: OKZ077.
TX...LAKE WIND ADVISORY FROM 9 AM THIS MORNING TO 7 PM CDT THIS
EVENING FOR THE FOLLOWING ZONES: TXZ149>153-165>167.
LAKE WIND ADVISORY FROM 6 AM THIS MORNING TO 7 PM CDT THIS
EVENING FOR THE FOLLOWING ZONES:
TXZ096-097-108>112-124>126-136>138.
FIRE WEATHER WATCH FROM 10 AM CDT THIS MORNING THROUGH THIS
EVENING FOR THE FOLLOWING ZONES:
TXZ096-097-108>112-124>126-136>138-149>153-165>167.
&&
13/09Hazardous weather outlook, Oct 18, 3:56 AM CDT, 53 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 356 AM CDT TUE OCT 18 2011 OKZ077-TXZ096-097-108>112-124>126-136>138-149>153-165>167-181800- MCCURTAIN-RED RIVER-BOWIE-FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD- UPSHUR-MARION-SMITH-GREGG-HARRISON-CHEROKEE-RUSK-PANOLA- NACOGDOCHES-SHELBY-ANGELINA-SAN AUGUSTINE-SABINE TX- 356 AM CDT TUE OCT 18 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST OKLAHOMA...EAST TEXAS AND NORTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT... WITH RAIN MOVING OUT EARLY THIS MORNING BEHIND A STRONG COLD FRONT...NORTHWEST WINDS WILL INCREASE TODAY...WITH SUSTAINED WINDS OF 15 TO 25 EXPECTED. WIND GUSTS WILL LIKELY APPROACH 35 MPH AT TIMES TODAY AS WELL. THERE WILL BE AN ELEVATED FIRE WEATHER THREAT TODAY GIVEN THE STRONG NORTHWEST WINDS AND CLEARING SKIES THIS AFTERNOON. NORTHWEST WINDS WILL BEGIN TO TAPER OFF THIS EVENING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... AFTER ANOTHER BREEZY DAY ON WEDNESDAY...WINDS WILL DIMINISH QUICKLY WEDNESDAY EVENING...ALLOWING OVERNIGHT LOW TEMPERATURES TO PLUMMET TO NEAR THE FREEZING MARK ACROSS MAINLY SOUTHEAST OKLAHOMA. ELSEWHERE... PATCHY FROST WILL BE POSSIBLE ACROSS THE REMAINDER OF NORTHEAST TEXAS LATE WEDNESDAY NIGHT INTO THE PREDAWN HOURS THURSDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. ARZ050-051-059>061-070>073-LAZ001>004-010>012-017-181800- SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE- COLUMBIA-UNION AR-CADDO-BOSSIER-WEBSTER-CLAIBORNE-DE SOTO- RED RIVER-BIENVILLE-SABINE LA- 356 AM CDT TUE OCT 18 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARKANSAS...SOUTHWEST ARKANSAS AND NORTHWEST LOUISIANA. .DAY ONE...TODAY AND TONIGHT... WITH RAIN MOVING OUT EARLY THIS MORNING BEHIND A STRONG COLD FRONT...NORTHWEST WINDS WILL INCREASE TODAY...WITH SUSTAINED WINDS OF 15 TO 25 EXPECTED. WIND GUSTS WILL LIKELY APPROACH 35 MPH AT TIMES TODAY AS WELL. NORTHWEST WINDS WILL BEGIN TO TAPER OFF THIS EVENING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... AFTER ANOTHER BREEZY DAY ON WEDNESDAY...WINDS WILL DIMINISH QUICKLY WEDNESDAY EVENING...ALLOWING OVERNIGHT LOW TEMPERATURES TO PLUMMET TO NEAR THE FREEZING MARK ACROSS PORTIONS OF SOUTHERN AND SOUTHWEST ARKANSAS. ELSEWHERE...PATCHY FROST WILL BE POSSIBLE ACROSS THE REMAINDER OF NORTHEAST TEXAS LATE WEDNESDAY NIGHT INTO THE PREDAWN HOURS THURSDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. LAZ005-006-013-014-018>022-181800- LINCOLN-UNION LA-JACKSON-OUACHITA-NATCHITOCHES-WINN-GRANT- CALDWELL-LA SALLE- 356 AM CDT TUE OCT 18 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL LOUISIANA AND NORTHWEST LOUISIANA. .DAY ONE...TODAY AND TONIGHT... SHOWERS AND THUNDERSTORMS...SOME STRONG IN INTENSITY...WILL BE POSSIBLE EARLY THIS MORNING ALONG AND AHEAD OF A STRONG COLD FRONT. ISOLATED WIND DAMAGE WILL BE POSSIBLE WITH ANY BOWING LINE SEGMENTS THAT COULD DEVELOP AHEAD OF THE FRONT. OTHERWISE... THE THUNDERSTORM ACTIVITY WILL BE EXITING THE REGION THIS MORNING LEAVING IN ITS WAKE STRONG NORTHWEST WINDS. WINDS WILL INCREASE TODAY TO NEAR 15 TO 25 MPH...WITH GUSTS APPROACHING 35 MPH. THE WINDS WILL DIMINISH THIS EVENING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... AFTER ANOTHER BREEZY DAY ON WEDNESDAY...WINDS WILL DIMINISH QUICKLY WEDNESDAY EVENING...ALLOWING OVERNIGHT LOW TEMPERATURES TO PLUMMET. PATCHY FROST WILL BE POSSIBLE ACROSS THE REGION LATE WEDNESDAY NIGHT INTO THE PREDAWN HOURS THURSDAY MORNING. .SPOTTER INFORMATION STATEMENT... WHILE WIDESPREAD SEVERE THUNDERSTORMS ARE NOT EXPECTED THIS MORNING... ISOLATED STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE. 13
In the hours before
Special weather statement, Oct 18, 3:04 AM CDT, 1 hour 45 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
304 AM CDT TUE OCT 18 2011
TXZ153-180900-
SHELBY-
304 AM CDT TUE OCT 18 2011
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 400 AM CDT...FOR THE FOLLOWING
COUNTY...
IN EASTERN TEXAS...
SHELBY...
INCLUDING THE FOLLOWING LOCATIONS...
CENTER...NEUVILLE...PATROON...SHELBYVILLE AND TIMPSON...
AT 301 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM 5 MILES SOUTH OF TIMPSON...OR 13
MILES WEST OF CENTER...MOVING EAST AT 55 MPH.
PEA SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM.
06Local storm report, Oct 18, 3:21 AM CDT, 1 hour 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
321 AM CDT TUE OCT 18 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0234 AM TSTM WND DMG 6 NNW MOUNT ENTERPRISE 31.99N 94.72W
10/18/2011 RUSK TX LAW ENFORCEMENT
TREES DOWN IN MINDEN TX.
&&
19Special weather statement, Oct 18, 3:26 AM CDT, 1 hour 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
326 AM CDT TUE OCT 18 2011
LAZ001-002-010>012-017-TXZ153-166-167-180930-
BIENVILLE-BOSSIER-CADDO-DE SOTO-RED RIVER-SABINE-SAN
AUGUSTINE-SHELBY-
326 AM CDT TUE OCT 18 2011
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 430 AM CDT...FOR THE FOLLOWING
COUNTIES AND PARISHES...
IN EASTERN TEXAS...
SABINE...SAN AUGUSTINE AND SHELBY...
IN NORTHWEST LOUISIANA...
SABINE...RED RIVER...DE SOTO...CADDO...BOSSIER AND BIENVILLE...
INCLUDING THE FOLLOWING LOCATIONS...
CONVERSE...COUSHATTA...LOGANSPORT...MANSFIELD...RINGGOLD...
SHREVEPORT...STONEWALL...ZWOLLE...BLAND LAKE...GENEVA...
NEUVILLE...PATROON...ROSEVINE...SAN AUGUSTINE AND SHELBYVILLE...
AT 322 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM SHREVEPORT
TO 6 MILES SOUTHWEST OF STONEWALL TO 6 MILES SOUTHEAST OF LOGANSPORT
TO NEUVILLE TO WODEN...MOVING EAST AT 45 MPH.
PEA SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THESE
STORMS.
06Local storm report, Oct 18, 3:54 AM CDT, 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
354 AM CDT TUE OCT 18 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0300 AM TSTM WND DMG 13 SW CARTHAGE 32.02N 94.49W
10/18/2011 PANOLA TX LAW ENFORCEMENT
NUMEROUS TREES DOWN NEAR THE INTERSECTION OF FM 1971 AND
FM 999.
&&
19Local storm report, Oct 18, 4:41 AM CDT, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
441 AM CDT TUE OCT 18 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0415 AM TSTM WND DMG 4 NW HALL SUMMIT 32.22N 93.35W
10/18/2011 RED RIVER LA LAW ENFORCEMENT
TREE DOWN ON SPRINGHILL CHURCH ROAD.
&&
19Local storm report, Oct 18, 4:43 AM CDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
443 AM CDT TUE OCT 18 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0410 AM TSTM WND DMG DOYLINE 32.52N 93.42W
10/18/2011 WEBSTER LA LAW ENFORCEMENT
SEVERAL TREES DOWN ON HWY 163.
&&
19The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 17, 7:45 PM CDT | Lake Wind Advisory | SHV | Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 11 more | 23 hr |
| Oct 18, 4:09 AM CDT | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Claiborne, Natchitoches, Red River, Webster | 51 min |
| Oct 18, 4:24 AM CDT | Severe Thunderstorm Warning | SHV | Natchitoches, Sabine | 51 min |
| Oct 18, 2:08 PM CDT | Red Flag Warning | SHV | Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 11 more | 29 hr |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2011Severe Thunderstorm Warnings in Arkansas, 2011Every severe thunderstorm warning in 2011
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.