Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 167, NWS New Orleans, LA

May 28, 1997Pointe Coupee Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at May 28, 1997, 6:31 PM CDT for Pointe Coupee Parish, Louisiana. It was in force for 29 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 28, 1997, 6:31 PM CDT (23:31 UTC)
Expired: May 28, 1997, 7:00 PM CDT
In force: 29 min
Issued by: NWS New Orleans, LA
Area: Whole counties

County Pointe Coupee Parish, LA

What was reported inside it

Time	Report	Where	Remark
May 28, 6:33 PM CDT	Thunderstorm Wind	New Roads, LA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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 28, 1:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 11.5 hours before the alert went out and 167 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: 418 J/kg
Mixed-layer CIN: -230 J/kg
Mixed-layer LCL: 1363 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 699 m²/s²
0-3 km storm-relative helicity: 723 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.9

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.

In the hours before

Local storm report, May 28, 4:32 PM CDT, 1 hour 59 minutes before

PRELIMINARY LOCAL STORM REPORTS
NATIONAL WEATHER SERVICE NEW ORLEANS LA
428 PM CDT WED MAY  28 1997

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

0320 PM    WIGGINS                   MS   .88 INCH HAIL
05/28/97   PEARL RIVER                    REPORTED BY SHERIFFS OFFICE.

0320 PM    PICAYUNE                  MS   .75 INCH HAIL
05/28/97   PEARL RIVER                    REPORTED BY NWS EMPLOYEE.

0332 PM    CONVENT                   LA   1.50 INCH HAIL
05/28/97   ST. JAMES                      PING PONG BALL SIZE REPORTED
                                          BY SHERIFFS OFFICE.

0342 PM    CARRIERE                  MS   TORNADO
05/28/97   PEARL RIVER                    REPORTED BY SHERIFFS DEPUTY.
0347 PM    2 N PICAYUNE              MS   TORNADO
05/28/97   PEARL RIVER                    POWER LINES DOWN. REPORTED BY
                                          SHERIFFS OFFICE.

24

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 1:45 PM CDT	Severe Thunderstorm Warning	LIX	Livingston	60 min
May 28, 3:08 PM CDT	Severe Thunderstorm Warning	LIX	Saint James	67 min
May 28, 4:45 PM CDT	Severe Thunderstorm Warning	LIX	Lafourche	15 min
May 28, 4:55 PM CDT	Tornado Warning	LIX	Lafourche	35 min
May 28, 5:27 PM CDT	Severe Thunderstorm Warning	LIX	Lafourche	33 min
May 28, 6:50 PM CDT	Severe Thunderstorm Warning	LIX	West Feliciana	25 min
May 28, 2:31 PM CDT	Severe Thunderstorm Warning	LIX	Pearl River	29 min
May 28, 3:18 PM CDT	Severe Thunderstorm Warning	LIX	Pearl River	57 min
May 28, 3:34 PM CDT	Severe Thunderstorm Warning	LIX	Amite, Wilkinson	56 min
May 28, 3:47 PM CDT	Tornado Warning	LIX	Pearl River	28 min
May 28, 5:12 PM CDT	Severe Thunderstorm Warning	LIX	Amite	18 min
May 28, 5:21 PM CDT	Severe Thunderstorm Warning	LIX	Pike	24 min
May 28, 5:39 PM CDT	Tornado Warning	LIX	Amite	36 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1997 Every severe thunderstorm warning in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.