Alert archive / Texas / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 113, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Aug 20, 1999, 3:28 PM CDT for Newton County, Texas. It was in force for 47 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
- Aug 20, 1999, 3:28 PM CDT (20:28 UTC)
- Expired
- Aug 20, 1999, 4:15 PM CDT
- In force
- 47 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
County Newton County, TX
The radar
The Ft Polk radar (KPOE), 84 km from the middle of the area, began a volume at 20:28 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 |
|---|---|---|---|
| Aug 20, 3:30 PM CDT | Thunderstorm Wind | Newton, 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 nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.5 hours before the alert went out and 91 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
- 1117 J/kg
- Mixed-layer CIN
- -166 J/kg
- Mixed-layer LCL
- 1392 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLCH 202033 RRA SVRLCH TXC351-202115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 328 PM CDT FRI AUG 20 1999 THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NEWTON COUNTY IN SOUTHEASTERN TEXAS * UNTIL 415 PM CDT * AT 329 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM IN THE VICINITY OF NEWTON MOVING SOUTH AT 10 MPH. * THIS STORM CAN BE EXPECTED NEAR... BLEAKWOOD BY 355 PM CDT BON WIER BY 400 PM CDT SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MPH... DESTRUCTIVE HAIL...DEADLY LIGHTNING AND TORRENTIAL RAIN. FOR YOUR PROTECTION...SEEK SHELTER IN A STRONG BUILDING. STAY AWAY FROM WINDOWS AND AVOID USING TELEPHONES...COMPUTERS OR OTHER ELECTRICAL EQUIPMENT UNTIL THE STORM HAS PASSED.
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 Aug 20, 2:30 PM CDT, 58 minutes earlier.
Area forecast discussion, Aug 20, 2:30 PM CDT, 58 minutes before
SOUTHEAST TEXAS...SOUTHWEST/CENTRAL LOUISIANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 230 PM CDT FRI AUG 20 1999 SHOWERS AND THUNDERSTORMS FIRING ALONG THE CSTL COUNTIES AND PARISHES PER 88-D... BEST DEVELOPMENT TO CONTINUE SOUTH OF THE I-10 CORRIDOR. THIS PLACES STORMS SOUTH OF THE DEW POINT FRONT AND INTO THE TROPICAL INSTABILITY AND BEST WIND FLOW CONVERGENCE. STORMS TO TAPER OFF THROUGH THE EVENING HOURS. AS BRET MOVES NW TOWARDS THE EXTREME SOUTH TEXAS COAST WILL BEGIN TO SEE UPPER LEVEL CIRRUS SHIELD SPREADING FROM THE NE TX INTO SW LA. TOMMORROW... LOOKS TO START THE DAY OUT WITH HAZE AND FOG MIXTURE ALONG THE COASTAL PARISHES AND COUNITES. AFTN CU FIELD DEVELOPING ALONG THE COAST AREAS... THIS WILL HOLD TEMPERATURES IN CHECK FM PREVIOUS DAYS HIGHS. WILL TREND POPS LOWER INLAND LCTNS AEX AND INCREASE POPS DOWN TOWARDS THE COAST... AS COASTAL TROF/DEW POINT FRNT ALLOWS SOME FOCUSING OF MOISTURE. ETA/NGM INDCG A BETTER MSTR PROFILE WHILE AVN HAS DRIER AIR FILTERING DEEPER INTO NORTHERN GULF NOT BUYING INTO THIS IDEA. MARINE INTEREST... TMRW SE WNDS 10 TO 15 KTS... SEAS 3 FT. INCR WNDS TO 15 KTS AND SEAS 3 TO 5 FT TMRW NIGHT. .LCH... TX...OZONE ACTION DAY TXZ201-215-216. LA...NONE. BPT CB 075/094 075/094 075 3413 LCH CB 075/094 074/093 076 3423 LFT CB 075/096 075/092 077 3323 AEX BB 071/095 073/092 075 01-1 K. KUYPER
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 3:51 PM CDT | Severe Thunderstorm Warning | LCH | Jasper | 64 min |
| Aug 20, 6:33 PM CDT | Severe Thunderstorm Warning | LCH | Jefferson, Orange | 62 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1999Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.