Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 123, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Jun 15, 1998, 5:25 PM CDT for Tyler County, Texas. It was in force for 65 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
- Jun 15, 1998, 5:25 PM CDT (22:25 UTC)
- Expired
- Jun 15, 1998, 6:30 PM CDT
- In force
- 65 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
County Tyler County, TX
The radar
The Lake Charles radar (KLCH), 132 km from the middle of the area, began a volume at 22:27 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 15, 5:41 PM CDT | Thunderstorm Wind | Warren, TX |
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 |
|---|---|---|---|
| Jun 15, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 10.4 hours before the alert went out and 134 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
- 1648 J/kg
- Mixed-layer CIN
- -170 J/kg
- Mixed-layer LCL
- 812 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 293 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.6
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 Lake Charles, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 15, 2:25 PM CDT, 3 hours earlier.
Area forecast discussion, Jun 15, 2:25 PM CDT, 3 hours before
SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
225 PM CDT MON JUN 15 1998
FRONT STILL DRAPED ACROSS NE TX INTO EXTREME NW LA. CAPE VALUES
FROM GOES IMAGERY SHOWS VALUES APPROACHING 3000 ACROSS WESTERN
LA AND 3500 ACROSS SE TX. CAP STILL STRONG OVER AREA AND NEED
CONVECTIVE TEMPS OF NEAR 104F TO BREAK IT. A FEW STRONG TSTRMS
HAVE DEVELOPED BETWEEN HOUSTON AND AUSTIN WHERE TEMPS ARE CLOSE
TO 100F. WILL HAVE TO WATCH THIS ACTIVITY CLOSELY AS IT HAS STAYED
TOGETHER AS IT MOVES EASTWARD. WILL GO WITH 20% POPS OVER ENTIRE
AREA THIS EVENING AS FRONT SHOULD MAKE PROGRESS INTO CENTRAL LA
AND UPPER SE TX. WITH FRONT HANGING AROUND ON TUE BEFORE DISSIPATING
WILL KEEP ISO POPS BUT MOST OF UPPER LEVEL DYNAMICS SHOULD MOVE NE
OF AREA. TROF PROG TO DIG INTO WESTERN US WILL HELP BUILD RIDGE AGAIN
OVER LCH FA AND WIPING OUT POPS.
7
BPT 78/94/78/93 2100
LCH 79/93/78/93 2100 LFT 78/94/78/93 2100 AEX 77/96/76/95 2100The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 5:46 PM CDT | Severe Thunderstorm Warning | LCH | Jasper | 61 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning in 1998
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; radar from the NEXRAD Level II archive.