Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 258, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Jun 14, 1997, 9:02 PM CDT for Knox County, Texas. It was in force for 43 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
- Jun 14, 1997, 9:02 PM CDT (02:02 UTC)
- Expired
- Jun 14, 1997, 9:45 PM CDT
- In force
- 43 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Knox County, TX
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 14, 7:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 2.0 hours before the alert went out and 244 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
- 4114 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1095 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 7.0
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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 14, 3:41 PM CDT, 5 hours 21 minutes earlier.
Area forecast discussion, Jun 14, 3:41 PM CDT, 5 hours 21 minutes before
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</html>In the hours before
Special weather statement, Jun 14, 7:03 PM CDT, 1 hour 59 minutes before
OKZ004>053-TXZ083>090-141230- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NORMAN OK 705 PM CDT SAT JUN 14 1997 ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT ACROSS ABOUT THE WESTERN THIRD OF OKLAHOMA AND WESTERN NORTH TEXAS. THE MAIN THREATS WILL BE LARGE HAIL AND DAMAGING WINDS... A COMPLEX OF SEVERE THUNDERSTORMS OVER WEST TEXAS AND THE TEXAS PANHANDLE IS EXPECTED TO PROGRESS EAST NORTHEASTWARD INTO PARTS OF NORTH TEXAS AND OKLAHOMA THIS EVENING. THE STORMS HAVE DEVELOPED IN AN AREA OF VERY HIGH INSTABILITY AND LOW LEVEL MOISTURE. AS THE STORMS PROGRESS FARTHER EAST AND NORTH...THEY WILL ENCOUNTER SOMEWHAT LESS FAVORABLE CONDITIONS. THE STORMS SHOULD BEGIN TO WEAKEN AS THEY ENTER THE SLIGHT RISK AREA AND MOST SHOULD BE BELOW SEVERE LEVELS BEFORE THEY MOVE EAST OF THAT AREA. AS A RESULT...THE MAIN THREAT OF SEVERE WEATHER WILL BE BEFORE MIDNIGHT. THE MAIN THREATS WILL BE LARGE HAIL AND STRONG WINDS. RELATIVELY LIGHT LOW- AND MID-LEVEL WINDS WILL LIMIT THE CHANCES OF SUPERCELL DEVELOPMENT. CMS
Special weather statement, Jun 14, 7:05 PM CDT, 1 hour 57 minutes before
OKZ004>053-TXZ083>090-141230- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NORMAN OK 705 PM CDT SAT JUN 14 1997 ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT ACROSS ABOUT THE WESTERN THIRD OF OKLAHOMA AND WESTERN NORTH TEXAS. THE MAIN THREATS WILL BE LARGE HAIL AND DAMAGING WINDS... A COMPLEX OF SEVERE THUNDERSTORMS OVER WEST TEXAS AND THE TEXAS PANHANDLE IS EXPECTED TO PROGRESS EAST NORTHEASTWARD INTO PARTS OF NORTH TEXAS AND OKLAHOMA THIS EVENING. THE STORMS HAVE DEVELOPED IN AN AREA OF VERY HIGH INSTABILITY AND LOW LEVEL MOISTURE. AS THE STORMS PROGRESS FARTHER EAST AND NORTH...THEY WILL ENCOUNTER SOMEWHAT LESS FAVORABLE CONDITIONS. THE STORMS SHOULD BEGIN TO WEAKEN AS THEY ENTER THE SLIGHT RISK AREA AND MOST SHOULD BE BELOW SEVERE LEVELS BEFORE THEY MOVE EAST OF THAT AREA. AS A RESULT...THE MAIN THREAT OF SEVERE WEATHER WILL BE BEFORE MIDNIGHT. THE MAIN THREATS WILL BE LARGE HAIL AND STRONG WINDS. RELATIVELY LIGHT LOW- AND MID-LEVEL WINDS WILL LIMIT THE CHANCES OF SUPERCELL DEVELOPMENT. CMS
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 9:13 PM CDT | Severe Thunderstorm Warning | OUN | Jackson, Tillman | 47 min |
| Jun 14, 10:05 PM CDT | Severe Thunderstorm Warning | OUN | Tillman | 30 min |
| Jun 14, 10:36 PM CDT | Severe Thunderstorm Warning | OUN | Tillman | 29 min |
| Jun 14, 10:53 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Clay | 37 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1997Every 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; the sounding from the Mesonet's radiosonde archive.