Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 191, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at May 27, 1997, 2:58 AM CDT for Bowie County, Texas. It was in force for 62 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 27, 1997, 2:58 AM CDT (07:58 UTC)
- Expired
- May 27, 1997, 4:00 AM CDT
- In force
- 62 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Bowie County, TX
The radar
The Shreveport radar (KSHV), 123 km from the middle of the area, began a volume at 08:02 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 |
|---|---|---|---|
| May 27, 3:15 AM CDT | Thunderstorm Wind 60 | New Boston, 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 |
|---|---|---|---|
| May 27, 1:45 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 8.0 hours before the alert went out and 124 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
- 4528 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1057 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.3
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 May 26, 9:48 PM CDT, 5 hours 10 minutes earlier.
Area forecast discussion, May 26, 9:48 PM CDT, 5 hours 10 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 945 PM CDT MON MAY 26 1997 CURRENT FORECAST LOOKS ON TRACK...WILL RAISE MINS A TAD AS CURRENT DPS ACROSS NORTH LA ARE IN THE MID 70S. WILL LEAVE IN TSTMS AS THEY COULD MOVE INTO NORTH LA LATE...HOWEVER IT APPEARS THAT THEY WILL REMAIN IN OK AND AR. IV
In the hours before
Local storm report, May 27, 1:12 AM CDT, 1 hour 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
108 AM CDT TUE MAY 27 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1237 AM 5 NE BROKEN BOW OK TORNADO
05/27/97 MCCURTAIN
1245 AM 2 NW WRIGHT CITY OK TORNADO
05/27/97 MCCURTAIN
1245 AM 5 N VALLIANT OK 1.75 INCH HAIL
05/27/97 MCCURTAIN
1250 AM 4 N VALLIANT J OK TORNADO
05/27/97 MCCURTAIN
10Local storm report, May 27, 1:23 AM CDT, 1 hour 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
123 AM CDT TUE MAY 27 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1237 AM 5 NE BROKEN BOW OK TORNADO
05/27/97 MCCURTAIN
1245 AM 2 NW WRIGHT CITY OK TORNADO
05/27/97 MCCURTAIN
1245 AM 5 N VALLIANT OK 1.75 INCH HAIL
05/27/97 MCCURTAIN
1250 AM 4 N VALLIANT OK TORNADO
05/27/97 MCCURTAIN
0113 AM 2 E BROKEN BOW OK TORNADO
05/27/97 MCCURTAIN
10Local storm report, May 27, 1:36 AM CDT, 1 hour 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
136 AM CDT TUE MAY 27 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1120 AM 5 W BETHEL OK 1.00 INCH HAIL
05/26/97 MCCURTAIN
0110 AM 1 E BROKEN BOW OK WIND DAMAGE
05/27/97 MCCURTAIN TREES DOWN.
10Local storm report, May 27, 1:38 AM CDT, 1 hour 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
136 AM CDT TUE MAY 27 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1120 AM 5 W BETHEL OK 1.00 INCH HAIL
05/26/97 MCCURTAIN
0110 AM 1 E BROKEN BOW OK WIND DAMAGE
05/27/97 MCCURTAIN TREES DOWN.
10Special weather statement, May 27, 2:00 AM CDT, 58 minutes before
ARZ050-051-059>061-070>073-LAZ001>003-OKZ077-TXZ096-097-108>112-124> 126-136>138-270800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 200 AM CDT TUE MAY 27 1997 ...TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM FOR ALL OF SOUTHERN ARKANSAS... ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR A LARGE PART OF NORTHEAST TEXAS UNTIL 700 AM... AT 208 AM DOPPLER RADAR INDICATED A 20 TO 30 MILE WIDE LINE OF STRONG THUNDERSTORMS EXENDING FROM HOT SPRINGS TO HOPE AND ASHDOWN ARKANSAS TO IDABEL OKLAHOMA TO 20 MILES NORTHWEST OF MOUNT VERNON TEXAS. THE STRONGEST STORMS ARE JUST EAST OF NASHVILLE ARKANSAS...FROM BROKEN BOW AND IDABEL OKLAHOMA TO CLARKVILLE TEXAS. MOVEMENT WAS SOUTHEAST AT 20 MPH. SOME OF THE STRONGER THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS OF 4O TO 50 MPH...ONE TO TWO INCHES OF RAIN PER HOUR...DANGEROUS LIGHTNING AND HAIL OF 1/2 INCH IN DIAMETER. 4/10
Special weather statement, May 27, 2:09 AM CDT, 49 minutes before
ARZ050-051-059>061-070>073-LAZ001>003-OKZ077-TXZ096-097-108>112-124> 126-136>138-270800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 200 AM CDT TUE MAY 27 1997 ...TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM FOR ALL OF SOUTHERN ARKANSAS... ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR A LARGE PART OF NORTHEAST TEXAS UNTIL 700 AM... AT 208 AM DOPPLER RADAR INDICATED A 20 TO 30 MILE WIDE LINE OF STRONG THUNDERSTORMS EXENDING FROM HOT SPRINGS TO HOPE AND ASHDOWN ARKANSAS TO IDABEL OKLAHOMA TO 20 MILES NORTHWEST OF MOUNT VERNON TEXAS. THE STRONGEST STORMS ARE JUST EAST OF NASHVILLE ARKANSAS...FROM BROKEN BOW AND IDABEL OKLAHOMA TO CLARKVILLE TEXAS. MOVEMENT WABS SOUTHEAST AT 20 MPH. SOME OF THE STRONGER THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS OF 4O TO 50 MPH...ONE TO TWO INCHES OF RAIN PER HOUR...DANGEROUS LIGHTNING AND HAIL OF 1/2 INCH IN DIAMETER. 4/10
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 12:41 AM CDT | Severe Thunderstorm Warning | SHV | Red River | 64 min |
| May 27, 12:32 PM CDT | Severe Thunderstorm Warning | SHV | Panola | 43 min |
| May 27, 1:16 PM CDT | Severe Thunderstorm Warning | SHV | Harrison | 44 min |
| May 27, 2:15 PM CDT | Severe Thunderstorm Warning | SHV | Rusk | 45 min |
| May 27, 2:43 PM CDT | Severe Thunderstorm Warning | SHV | Harrison | 62 min |
| May 27, 3:02 PM CDT | Severe Thunderstorm Warning | SHV | Cass | 28 min |
| May 27, 3:08 PM CDT | Severe Thunderstorm Warning | SHV | Marion | 52 min |
| May 27, 3:42 PM CDT | Severe Thunderstorm Warning | SHV | Harrison | 48 min |
| May 27, 3:59 PM CDT | Severe Thunderstorm Warning | SHV | Cass | 46 min |
| May 27, 4:08 PM CDT | Flash Flood Warning | SHV | Harrison | 3 hr |
| May 27, 4:37 PM CDT | Severe Thunderstorm Warning | SHV | Harrison | 53 min |
| May 27, 4:46 PM CDT | Severe Thunderstorm Warning | SHV | Panola | 59 min |
| May 27, 5:16 PM CDT | Severe Thunderstorm Warning | SHV | Bowie | 59 min |
| May 27, 6:06 PM CDT | Severe Thunderstorm Warning | SHV | Harrison | 54 min |
| May 27, 6:51 PM CDT | Severe Thunderstorm Warning | SHV | Shelby | 54 min |
| May 27, 5:00 PM CDT | Severe Thunderstorm Warning | SHV | Caddo | 45 min |
| May 27, 5:44 PM CDT | Severe Thunderstorm Warning | SHV | De Soto | 61 min |
| May 27, 5:57 PM CDT | Severe Thunderstorm Warning | SHV | Bossier | 48 min |
| May 27, 6:10 PM CDT | Severe Thunderstorm Warning | SHV | Webster | 50 min |
| May 27, 6:38 PM CDT | Severe Thunderstorm Warning | SHV | Bienville | 67 min |
| May 27, 2:50 AM CDT | Severe Thunderstorm Warning | SHV | Hempstead, Howard, Little River, Sevier | 55 min |
| May 27, 3:02 AM CDT | Severe Thunderstorm Warning | SHV | Miller | 58 min |
| May 27, 3:44 AM CDT | Severe Thunderstorm Warning | SHV | Columbia, Lafayette | 61 min |
| May 27, 3:21 PM CDT | Severe Thunderstorm Warning | SHV | Miller | 69 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.