Alert archive / Louisiana / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 45, NWS Shreveport, LA

January 22, 1999Sabine Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Jan 22, 1999, 4:37 AM CST for Sabine Parish, Louisiana. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jan 22, 1999, 4:37 AM CST (10:37 UTC)
Expired: Jan 22, 1999, 5:25 AM CST
In force: 48 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County Sabine Parish, LA

The radar

The Ft Polk radar (KPOE), 71 km from the middle of the area, began a volume at 10:40 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 22, 3:00 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 10.6 hours before the alert went out and 104 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 959 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1162 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 204 m²/s²
0-3 km storm-relative helicity: 299 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 7.9

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.

What 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 Jan 22, 3:00 AM CST, 1 hour 37 minutes earlier.

Area forecast discussion, Jan 22, 3:00 AM CST, 1 hour 37 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
300 AM CST FRI JAN 22 1999

SVR WEATHER IS ONGOING WITH COMPLEX PATTERNS OF DEEP CONVECTION. SQUALL
MOVING THRU NORTH LA AND SOUTH AR WITH NEW DEVELOPMENT EXPLODING BACK
TO THE WEST AND MOVG INTO EAST TX. ACCORDING TO RUC...INTENSITY SHUD
BE PEAKING ABOUT NOW WITH 5H TEMPS -18 TO -20. WINDS AT THIS LEVEL
WILL STRENGTHEN FROM SOUTH AS TROF BASE DEEPENS ALMOST TO THE POINT
OF BENDING BACK ONTO ITSELF. NEW DEVELOPMENT AHEAD OF SQUALLS AND MCS
IN CENTRAL LA ALSO A CONCERN. SOME SIGNIFICANT WIND DAMAGE HAS OCCURRED
IN STORMS AND A FEW REPORTS OF VERY LARGE HAIL.

AVN AND ETA APPEAR MORE IN LINE WITH RUC...WITH NGM FASTER AND FURTHER
SOUTH. LOW CENTER MOVING INTO SW AR THIS AFTERNOON WITH BEST INSTABILITY
CONTINUING ACROSS THIS AREA. THICKNESS DIFLUENCE ALSO ANGLES TOWARDS
THIS DIRECTION BY MIDDAY. TRAILING PREFRONTAL TROF MOVE THRU LA PORTIONS
DURING THE AFTERNOON. SEVERE WEATHER POSSIBLE UNTIL PASSAGE OF THESE
FEATURES. SOME INSTABILITY EVEN IN WESTERLY FLOW BEHIND THESE FEATURES
BUT LIFT LIMITED...SO ANY CONVECTION FAIRLY SHALLOW AFTER FIRST WSHFT.

REAL FRONT MOVE INTO AREA FRI EVENING AND ACCOMPANIED BY TONGUE OF
LOW LEVEL MOISTURE. WITH 540 LINE DROPPING THRU SE OK...COULD SEE A
BRIEF PERIOD OF SNOW FLURRIES EXTREME NW PORTIONS...ALTHOUGH THIS
WOULD MOST LIKELY JUST MISS OUR AREA. AT ANY RATE...SURFACE TEMPS
REMAIN ABOVE FREEZING...BUT WIND CHILL AND LIGHT PCPN MAKE FOR A COLD
NIGHT. GUSTY NW WINDS ON SATURDAY...BUT DIMINISH QUICKLY AS SURFACE
HIGH MOVES INTO NW LA BEFORE DAYBREAK. A DRY SOUTHERLY FLOW COMMENCE
ON SUNDAY AS WARM PATTERN REGIME CONTINUES.

SHV 67/43/56/33  5300       MLU 72/45/58/34  7200     07

In the hours before

Local storm report, Jan 22, 2:00 AM CST, 2 hours 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
200 AM CST FRI JAN 22 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1125 PM    4 S KILGORE               TX   60 MPH TSTM GUST
01/21/99   RUSK                           ROOF OFF HOUSE.  REPORT
                                          FROM S.O.

1202 AM    1 E KILGORE               TX   70 MPH TSTM GUST
01/22/99   GREGG                          STRUCTURAL DAMAGE TO
                                          NUMEROUS BUILDING ACROSS
                                          TOWN.  REPORT FROM S.O.

1205 AM    ATLANTA                   TX   70 MPH TSTM GUST
01/22/99   CASS                           ROOF DAMAGE TO THE ATLANTA
                                          PRIMARY SCHOOL.  REPORT
                                          FROM SPOTTER.

1215 AM    5 N IDA                   AR   60 MPH TSTM GUST
01/22/99   MILLER                         8 TREES DOWN ON US 71.
                                          REPORT BY SPOTTER.

1221 AM    FOUKE                     AR   .75 INCH HAIL
01/22/99   MILLER                         REPORT FROM S.O.

1235 AM    GARLAND                   AR   60 MPH TSTM GUST
01/22/99   MILLER                         GARAGE DAMAGE TO HOME PLUS
                                          TREES DOWN.  REPORT FROM
                                          S.O.

1235 AM    TEXARKANA                 AR   .75 INCH HAIL
01/22/99   MILLER                         REPORT BY S.O.

0153 AM    HOMER                     LA   .75 INCH HAIL
01/22/99   CLAIBORNE                      REPORT FROM S.O.

10

Local storm report, Jan 22, 2:00 AM CST, 2 hours 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
200 AM CST FRI JAN 22 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1125 PM    4 S KILGORE               TX   60 MPH TSTM GUST
01/21/99   RUSK                           ROOF OFF HOUSE.  REPORT
                                          FROM S.O.

1202 AM    1 E KILGORE               TX   70 MPH TSTM GUST
01/22/99   GREGG                          STRUCTURAL DAMAGE TO
                                          NUMEROUS BUILDING ACROSS
                                          TOWN.  REPORT FROM S.O.

1205 AM    ATLANTA                   TX   70 MPH TSTM GUST
01/22/99   CASS                           ROOF DAMAGE TO THE ATLANTA
                                          PRIMARY SCHOOL.  REPORT
                                          FROM SPOTTER.

1215 AM    5 N IDA                   AR   60 MPH TSTM GUST
01/22/99   MILLER                         8 TREES DOWN ON US 71.
                                          REPORT BY SPOTTER.

1221 AM    FOUKE                     AR   .75 INCH HAIL
01/22/99   MILLER                         REPORT FROM S.O.

1235 AM    GARLAND                   AR   60 MPH TSTM GUST
01/22/99   MILLER                         GARAGE DAMAGE TO HOME PLUS
                                          TREES DOWN.  REPORT FROM
                                          S.O.

1235 AM    TEXARKANA                 AR   .75 INCH HAIL
01/22/99   MILLER                         REPORT BY S.O.

0153 AM    HOMER                     LA   .75 INCH HAIL
01/22/99   CLAIBORNE                      REPORT FROM S.O.

10

Local storm report, Jan 22, 3:10 AM CST, 1 hour 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
310 AM CST FRI JAN 22 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

230 AM     7 SW RUSK                 TX   2.00 INCH HAIL
01/22/99   CHEROKEE                       DAMAGE TO NUMEROUS CARS.
                                          REPORT FROM S.O.

235 AM     RUSK                      TX   1.75 INCH HAIL
01/22/99   CHEROKEE                       REPORT FROM S.O.

1050 PM    TYLER                     TX   2.75 INCH HAIL
01/21/99   SMITH                          DAMAGE TO CARS.
                                          REPORT BY SPOTTER.

16

Local storm report, Jan 22, 3:15 AM CST, 1 hour 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
315 AM CST FRI JAN 22 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1240 AM    2 N LEWISVILLE            AR   70 MPH TSTM GUST
01/22/99   LAFAYETTE                      NUMEROUS TREES BLOWN
                                          DOWN ACROSS AR 29.
                                          REPORT BY SPOTTER.

16

Local storm report, Jan 22, 3:23 AM CST, 1 hour 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
323 AM CST FRI JAN 22 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

112 AM     ROSSTON                   AR   65 MPH TSTM GUST
01/22/99   LAFAYETTE                      NUMEROUS TREES BLOWN
                                          DOWN. ONE CHURCH AND
                                          ONE HOUSE DAMAGED AS
                                          WELL AS A CHICKEN BARN.
                                          REPORT BY S.O.

16

Local storm report, Jan 22, 3:23 AM CST, 1 hour 14 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED...
NATIONAL WEATHER SERVICE SHREVEPORT LA
323 AM CST FRI JAN 22 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

112 AM     ROSSTON                   AR   65 MPH TSTM GUST
01/22/99   NEVADA                         NUMEROUS TREES BLOWN
                                          DOWN. ONE CHURCH AND
                                          ONE HOUSE DAMAGED AS
                                          WELL AS A CHICKEN BARN.
                                          REPORT BY S.O.

16

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 21, 9:38 PM CST	Severe Thunderstorm Warning	SHV	Franklin, Titus	32 min
Jan 21, 10:45 PM CST	Severe Thunderstorm Warning	SHV	Smith	65 min
Jan 21, 10:48 PM CST	Severe Thunderstorm Warning	SHV	Upshur	32 min
Jan 21, 10:52 PM CST	Severe Thunderstorm Warning	SHV	Gregg	63 min
Jan 21, 10:57 PM CST	Severe Thunderstorm Warning	SHV	Cherokee	63 min
Jan 21, 11:07 PM CST	Severe Thunderstorm Warning	SHV	Marion	63 min
Jan 21, 11:16 PM CST	Severe Thunderstorm Warning	SHV	Harrison, Rusk	59 min
Jan 21, 11:22 PM CST	Severe Thunderstorm Warning	SHV	Cass	63 min
Jan 21, 11:56 PM CST	Severe Thunderstorm Warning	SHV	Panola	59 min
Jan 22, 12:09 AM CST	Severe Thunderstorm Warning	SHV	Cherokee	31 min
Jan 22, 2:16 AM CST	Severe Thunderstorm Warning	SHV	Cherokee	49 min
Jan 22, 4:19 AM CST	Severe Thunderstorm Warning	SHV	Nacogdoches	61 min
Jan 22, 5:24 PM CST	Tornado Warning	SHV	Bowie	61 min
Jan 21, 6:33 PM CST	Severe Thunderstorm Warning	SHV	Ouachita	42 min
Jan 21, 8:40 PM CST	Tornado Warning	SHV	LaSalle	50 min
Jan 22, 12:01 AM CST	Severe Thunderstorm Warning	SHV	Caddo	64 min
Jan 22, 12:20 AM CST	Severe Thunderstorm Warning	SHV	Bossier	60 min
Jan 22, 12:38 AM CST	Severe Thunderstorm Warning	SHV	Webster	62 min
Jan 22, 1:38 AM CST	Tornado Warning	SHV	Union	47 min
Jan 22, 1:49 AM CST	Severe Thunderstorm Warning	SHV	Claiborne	46 min
Jan 22, 4:31 AM CST	Severe Thunderstorm Warning	SHV	Natchitoches	49 min
Jan 22, 4:46 AM CST	Tornado Warning	SHV	Natchitoches	49 min
Jan 22, 5:01 AM CST	Tornado Warning	SHV	Red River	49 min
Jan 22, 5:10 AM CST	Severe Thunderstorm Warning	SHV	De Soto, Red River	50 min
Jan 22, 5:40 AM CST	Tornado Warning	SHV	Bienville	45 min
Jan 22, 5:44 AM CST	Tornado Warning	SHV	Jackson	46 min
Jan 22, 5:56 AM CST	Severe Thunderstorm Warning	SHV	Lincoln	49 min
Jan 22, 6:10 AM CST	Tornado Warning	SHV	Lincoln	35 min
Jan 22, 6:17 AM CST	Tornado Warning	SHV	Ouachita	48 min
Jan 22, 6:38 AM CST	Severe Thunderstorm Warning	SHV	Union	47 min
Jan 22, 7:22 AM CST	Flash Flood Warning	SHV	Bossier, Caddo, De Soto	4 hr
Jan 22, 7:22 AM CST	Flash Flood Warning	SHV	Webster	4 hr
Jan 22, 11:27 AM CST	Tornado Warning	SHV	Natchitoches	58 min
Jan 22, 11:51 AM CST	Tornado Warning	SHV	Grant	44 min
Jan 21, 8:05 PM CST	Severe Thunderstorm Warning	SHV	Hempstead	45 min
Jan 21, 8:27 PM CST	Tornado Warning	SHV	Hempstead	33 min
Jan 21, 11:59 PM CST	Severe Thunderstorm Warning	SHV	Miller	61 min
Jan 22, 12:34 AM CST	Severe Thunderstorm Warning	SHV	Columbia	61 min
Jan 22, 12:44 AM CST	Severe Thunderstorm Warning	SHV	Hempstead, Nevada	61 min
Jan 22, 2:04 AM CST	Tornado Warning	SHV	Union	46 min
Jan 22, 5:44 PM CST	Tornado Warning	SHV	Little River	61 min
Jan 22, 5:51 PM CST	Tornado Warning	SHV	Howard, Sevier	59 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1999 Every severe thunderstorm warning 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.