Alert archive / Louisiana / Tornado Warnings in 2013
Tornado Warning 37, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at May 16, 2013, 4:47 PM CDT for Natchitoches Parish, Winn Parish, Louisiana. It was in force for 28 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
- May 16, 2013, 4:47 PM CDT (21:47 UTC)
- Expired
- May 16, 2013, 5:15 PM CDT
- In force
- 28 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
Counties Natchitoches Parish, LA, Winn Parish, LA
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 16, 2:54 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 9.8 hours before the alert went out and 90 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
- 186 J/kg
- Mixed-layer CIN
- -239 J/kg
- Mixed-layer LCL
- 717 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 406 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
457
WFUS54 KSHV 162147
TORSHV
LAC069-127-162215-
/O.NEW.KSHV.TO.W.0037.130516T2147Z-130516T2215Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
447 PM CDT THU MAY 16 2013
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
* TORNADO WARNING FOR...
WEST CENTRAL WINN PARISH IN NORTH CENTRAL LOUISIANA...
NORTH CENTRAL NATCHITOCHES PARISH IN NORTHWEST LOUISIANA...
* UNTIL 515 PM CDT
* AT 442 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR BLACK
LAKE...OR 18 MILES NORTH OF NATCHITOCHES...MOVING SOUTHEAST AT 30
MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CRESTON AND CLEAR LAKE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WARNING MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE
STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO
DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...
MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM
WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
&&
LAT...LON 3195 9312 3201 9316 3210 9310 3194 9277
3178 9288
TIME...MOT...LOC 2147Z 301DEG 18KT 3201 9311
$$
06What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at May 16, 4:16 PM CDT, 31 minutes earlier.
Area forecast discussion, May 16, 4:16 PM CDT, 31 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 416 PM CDT THU MAY 16 2013 .DISCUSSION... AN INTERESTING AFTERNOON TO SAY THE LEAST AS ONE LONE SUPERCELL DEVELOPED IN AN AREA OF ENHANCED INSTABILITY AND AMPLE WIND SHEAR. THIS CELL TRACKED FROM NEAR MOUNT PLEASANT TX SEWRD ACROSS NW LA WHERE ROTATION BEGAN TO INCREASE...PROMPTING A SUCCESSION OF TORNADO WARNINGS FROM THE TX/LA STATE LINE DOWN ALONG THE INTERSTATE 49 CORRIDOR. NUMEROUS SEVERE REPORTS HAVE COME IN FROM THIS LONE STORM INCLUDING WIDESPREAD WIND DAMAGE AND LARGE HAIL...MAINLY ACROSS NW LA. THE ENVIRONMENT REMAINS RIPE FOR ADDITIONAL THUNDERSTORM DEVELOPMENT THROUGH EARLY EVENING SOUTH OF INTERSTATE 20 IN NW LA...WHERE A TORNADO WATCH REMAINS IN EFFECT THROUGH 8PM CDT THIS EVENING. LOOKING NORTH WHERE INSTABILITY WAS QUELLED A BIT BY MORNING RAINFALL...SHWRS HAVE CONTINUED THROUGH THE AFTERNOON WITH ONLY A FEW ISOLD TSTMS ACROSS SE OK AND SW AR. THE UPPER LOW RESPONSIBLE FOR ALL THIS CONVECTION WILL CONTINUE TO SHIFT E/NE INTO WRN AR THIS EVENING...AND WILL THEREFORE KEEP POPS IN THE FORECAST THROUGH FRIDAY ACROSS THE NRN HALF OF THE REGION. UPPER RIDGE WILL REGAIN IT/S HOLD OVER THE REGION THROUGH THE WEEKEND AND INTO EARLY NEXT WEEK. EXPECT ABOVE NORMAL TEMPERATURES WITH SOME LOW 90S POSSIBLE OVER THE SRN HALF OF THE REGION. IN ADDITION...MORNING LOWS WILL AVERAGE NEAR 70 DEGREES ACROSS MANY LOCATIONS. THESE TEMPERATURES WILL LIKELY CONTINUE INTO EARLY NEXT WEEK AHEAD OF AN APPROACHING COLD FRONT WHICH STILL APPEARS SLOW TO PUSH THROUGH THE REGION BY MID WEEK...LOOKING MORE LIKELY THAT IT MAY STALL SOMEWHERE NEAR OR ALONG THE INTERSTATE 20 CORRIDOR BEFORE WEAKENING AND RETREATING BACK NORTH. KEPT SLIGHT CHANCE POPS IN THE FORECAST THROUGH THE EXTENDED TO RESPECT THE FRNTL BNDRY. /19/ && .AVIATION... SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER PARTS OF THE FOUR STATE REGION AHEAD OF AN UPPER LEVEL DISTURBANCE FROM A CENTER OVER NORTHERN ARKANSAS WITH TROUGH AXIS TRAILING SOUTH INTO LOUISIANA...AND ADDITIONAL DISTURBANCES ROUNDING THE BACK SIDE OF THE UPPER LOW AND SPREADING SOUTHEAST ACROSS THE AREA. WILL CARRY PREVAILING MVFR AND IFR WITH THE BRUNT OF THE SHOWERS AND THUNDERSTORMS THIS EVENING. MVFR TO IFR FLIGHT CATEGORIES WILL RETURN OVERNIGHT NEAR 17/05 UTC INTO THE MID TO LATE MORNING FRIDAY AROUND 17/16 UTC. WINDS WILL BE SOUTH 7 TO 12 KNOTS THROUGH FRIDAY NIGHT NEAR 18/00 UTC. /06/ && .PRELIMINARY POINT TEMPS/POPS... SHV 67 86 69 88 69 / 40 10 10 10 10 MLU 67 84 69 87 68 / 40 20 20 10 10 DEQ 64 82 67 87 66 / 50 20 20 10 10 TXK 65 82 69 87 68 / 50 20 20 10 10 ELD 65 82 68 87 66 / 60 20 20 10 10 TYR 68 86 70 89 69 / 30 10 10 10 10 GGG 68 86 69 89 69 / 30 10 10 10 10 LFK 70 89 70 90 70 / 20 10 10 10 10 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...NONE. LA...NONE. OK...NONE. TX...NONE. && 19/06
Hazardous weather outlook, May 16, 12:15 PM CDT, 4 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1215 PM CDT THU MAY 16 2013 ARZ050-051-059>061-070>073-LAZ001>004-006-OKZ077-TXZ096-097- 108>112-126-171200- SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE- COLUMBIA-UNION AR-CADDO-BOSSIER-WEBSTER-CLAIBORNE-UNION LA- MCCURTAIN-RED RIVER-BOWIE-FRANKLIN-TITUS-CAMP-MORRIS-CASS-MARION- 1215 PM CDT THU MAY 16 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARKANSAS...SOUTHWEST ARKANSAS...NORTH CENTRAL LOUISIANA... NORTHWEST LOUISIANA...SOUTHEAST OKLAHOMA AND NORTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AS AN UPPER LOW CONTINUES TO TRACK EAST FROM OKLAHOMA INTO ARKANSAS. SOME STORMS MAY REACH SEVERE LIMITS MAINLY ALONG AND NORTH OF THE INTERSTATE 20 CORRIDOR AS INSTABILITY INCREASES DURING THE AFTERNOON AND EVENING. HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES ARE ALL POSSIBLE...ESPECIALLY WITH ANY SUPERCELLS THAT DEVELOP. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... A FEW AFTERNOON SHOWERS AND THUNDERSTORMS ARE POSSIBLE ON FRIDAY. ADDITIONAL SHOWER AND THUNDERSTORM DEVELOPMENT IS EXPECTED FROM MONDAY THROUGH WEDNESDAY NEXT WEEK. HOWEVER...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL...AMATEUR RADIO OPERATORS...AND STORM SPOTTERS MAY BE NEEDED TODAY AND TONIGHT. LAZ005-010>014-017>022-TXZ124-125-136>138-149>153-165>167-171200- LINCOLN-DE SOTO-RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE LA- NATCHITOCHES-WINN-GRANT-CALDWELL-LA SALLE-WOOD-UPSHUR-SMITH-GREGG- HARRISON-CHEROKEE-RUSK-PANOLA-NACOGDOCHES-SHELBY-ANGELINA- SAN AUGUSTINE-SABINE TX- 1215 PM CDT THU MAY 16 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL LOUISIANA...NORTHWEST LOUISIANA...EAST TEXAS AND NORTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AS AN UPPER LOW CONTINUES TO TRACK EAST FROM OKLAHOMA INTO ARKANSAS. STRONG TO SEVERE STORMS ARE EXPECTED TO REMAIN ALONG AND NORTH OF THE INTERSTATE 20 CORRIDOR. HOWEVER...A FEW ISOLATED STORMS MAY REACH SEVERE LIMITS FARTHER SOUTH WITH HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES ALL POSSIBLE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... A FEW AFTERNOON SHOWERS AND THUNDERSTORMS ARE POSSIBLE ON FRIDAY. ADDITIONAL SHOWER AND THUNDERSTORM DEVELOPMENT IS EXPECTED FROM MONDAY THROUGH WEDNESDAY NEXT WEEK. HOWEVER...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL...AMATEUR RADIO OPERATORS...AND STORM SPOTTERS MAY BE NEEDED TODAY AND TONIGHT. 19
In the hours before
Local storm report, May 16, 3:52 PM CDT, 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
352 PM CDT THU MAY 16 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0308 PM TSTM WND DMG SHREVEPORT 32.47N 93.80W
05/16/2013 CADDO LA TRAINED SPOTTER
HOUSE HAD ROOF PEELED BACK . PORCH KNOCKED OFF.
0308 PM HAIL SHREVEPORT 32.47N 93.80W
05/16/2013 M1.75 INCH CADDO LA TRAINED SPOTTER
HOUSE HAD ROOF PEELED BACK . PORCH KNOCKED OFF.
&&
EVENT NUMBER SHV1300135
EVENT NUMBER SHV1300136
10Local storm report, May 16, 3:57 PM CDT, 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
357 PM CDT THU MAY 16 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0354 PM HAIL 30 SE SHREVEPORT 32.16N 93.43W
05/16/2013 M1.00 INCH RED RIVER LA NWS EMPLOYEE
INTERSECTION OF HWY 71 AND HWY 4
&&
EVENT NUMBER SHV1300137
10Local storm report, May 16, 4:00 PM CDT, 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
400 PM CDT THU MAY 16 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0235 PM TSTM WND DMG GREENWOOD 32.44N 93.97W
05/16/2013 CADDO LA AMATEUR RADIO
SEMI BLOWN ON SIDE.
&&
EVENT NUMBER SHV1300138
10Local storm report, May 16, 4:02 PM CDT, 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
402 PM CDT THU MAY 16 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0255 PM HAIL SHREVEPORT 32.47N 93.80W
05/16/2013 M1.25 INCH CADDO LA NWS EMPLOYEE
HAIL COVERING THE GROUND...A FEW TREES DOWN ON SHED
0255 PM TSTM WND DMG SHREVEPORT 32.47N 93.80W
05/16/2013 CADDO LA NWS EMPLOYEE
HAIL COVERING THE GROUND...A FEW TREES DOWN ON SHED
&&
EVENT NUMBER SHV1300139
EVENT NUMBER SHV1300140
10Local storm report, May 16, 4:04 PM CDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SHREVEPORT LA
404 PM CDT THU MAY 16 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0255 PM TSTM WND DMG SHREVEPORT 32.47N 93.80W
05/16/2013 CADDO LA NWS EMPLOYEE
HAIL COVERING THE GROUND...A FEW TREES DOWN ON
SHED..WINDS ESTIMATED AT 70 MPH.
&&
CORRECTED REMARKS
EVENT NUMBER SHV1300140
10Local storm report, May 16, 4:43 PM CDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
443 PM CDT THU MAY 16 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0315 PM HAIL SHREVEPORT 32.47N 93.80W
05/16/2013 M1.50 INCH CADDO LA TRAINED SPOTTER
&&
EVENT NUMBER SHV1300141
10The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 2:20 PM CDT | Severe Thunderstorm Warning | SHV | Bossier, Caddo | 40 min |
| May 16, 2:29 PM CDT | Tornado Warning | SHV | Caddo, De Soto | 31 min |
| May 16, 2:57 PM CDT | Tornado Warning | SHV | Bossier, Caddo, De Soto | 33 min |
| May 16, 3:27 PM CDT | Tornado Warning | SHV | Bienville, Bossier, Caddo, De Soto, Red River | 48 min |
| May 16, 4:08 PM CDT | Tornado Warning | SHV | Bienville, Natchitoches, Red River | 22 min |
| May 16, 4:29 PM CDT | Severe Thunderstorm Warning | SHV | Natchitoches, Red River, Winn | 61 min |
| May 16, 5:14 PM CDT | Tornado Warning | SHV | Natchitoches, Winn | 46 min |
Nearby
Tornado Warnings in Louisiana, 2013Every tornado warning in 2013Tornadoes in 2013
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.