Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 443, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Aug 18, 1997, 9:04 PM CDT for Custer County, Oklahoma. It was in force for 36 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 18, 1997, 9:04 PM CDT (02:04 UTC)
- Expired
- Aug 18, 1997, 9:40 PM CDT
- In force
- 36 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Custer County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 18, 9:10 PM CDT | Hail 1 | Butler, OK |
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
Norman, OK (KOUN), launched 00:00Z, 2.1 hours before the alert went out and 152 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
- 755 J/kg
- Mixed-layer CIN
- -164 J/kg
- Mixed-layer LCL
- 1255 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 176 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
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 Aug 18, 8:56 PM CDT, 8 minutes earlier.
Area forecast discussion, Aug 18, 8:56 PM CDT, 8 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE NORMAN OK 855 PM CDT MON AUG 18 1997 STRNG TSTM ACTVTY TO CONT FOR SVRL MORE HRS AS UPR TROF CONT TO MOV INTO THE AREA. WL XTND FF WATCH SWD FROM CURRENT LOCATION TO PICK UP COUNTIES IN WEST CENTRAL OK. THIS AREA WL LKLY SEE TRAINING OF ECHOES WITH LOW LVL BNDRIES CONT TO ACT AS A FOCUS. BEST PCPN CHCS WL CONT TO BE MAINLY OVR WRN AND CNTRL OK OVRNGT. 32 .OKC... OK...FFA TNGT ZNS 6>8..11>13..14>20 TX...NONE.
In the hours before
Local storm report, Aug 18, 6:38 PM CDT, 2 hours 26 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
635 PM CDT MON AUG 18 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
633 PM 3 SW RUSH SPRINGS OK 70 MPH WIND GUST
08/18/97 GRADY
SCLocal storm report, Aug 18, 7:13 PM CDT, 1 hour 51 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
713 PM CDT MON AUG 18 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
710 PM LAWTON OK 1.75 INCH HAIL
08/18/97 COMANCHE SEVERAL REPORTS OF GOLFBALL
SIZE HAIL FROM CHANNEL 7 IN
LAWTON.
SCLocal storm report, Aug 18, 8:00 PM CDT, 1 hour 4 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
800 PM CDT MON AUG 18 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
755 PM 9 W CHEROKEE OK WIND DAMAGE
08/18/97 ALFALFA NUMEROUS 8-12 INCH TREE LIMBS
DOWN.
SCLocal storm report, Aug 18, 8:42 PM CDT, 22 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
0842 PM CDT MON AUG 18 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0830 PM 6 SW CHEYENNE OK 62 MPH WIND GUST MEASURED
08/18/97 ROGER MILLS OKLAHOMA MESONETWORKLocal storm report, Aug 18, 8:45 PM CDT, 19 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
0842 PM CDT MON AUG 18 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0830 PM 6 SW CHEYENNE OK 62 MPH WIND GUST MEASURED
08/18/97 ROGER MILLS OKLAHOMA MESONETWORKLocal storm report, Aug 18, 8:55 PM CDT, 9 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
855 PM CDT MON AUG 18 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
745 PM 2 E EAGLE CITY OK TORNADO
08/18/97 BLAINE TORNADO TOUCHDOWN FOR
3 MINUTES. TREE AND FENCE
DAMAGE FOR APPROX. HALF MILE.
850 PM EAGLE CITY OK 1.00 INCH HAIL
08/18/97 BLAINE
SCThe office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 7:03 PM CDT | Severe Thunderstorm Warning | OUN | Blaine, Major | 42 min |
| Aug 18, 7:05 PM CDT | Severe Thunderstorm Warning | OUN | Comanche | 25 min |
| Aug 18, 7:44 PM CDT | Severe Thunderstorm Warning | OUN | Blaine, Dewey | 46 min |
| Aug 18, 7:44 PM CDT | Severe Thunderstorm Warning | OUN | Kingfisher | 46 min |
| Aug 18, 7:50 PM CDT | Severe Thunderstorm Warning | OUN | Alfalfa | 40 min |
| Aug 18, 8:13 PM CDT | Severe Thunderstorm Warning | OUN | Woods, Woodward | 47 min |
| Aug 18, 8:26 PM CDT | Severe Thunderstorm Warning | OUN | Blaine, Dewey | 49 min |
| Aug 18, 8:35 PM CDT | Flash Flood Warning | OUN | Blaine, Dewey | 3 hr |
| Aug 18, 9:14 PM CDT | Severe Thunderstorm Warning | OUN | Blaine | 46 min |
| Aug 18, 9:15 PM CDT | Severe Thunderstorm Warning | OUN | Harper, Woods | 45 min |
| Aug 18, 9:35 PM CDT | Flash Flood Warning | OUN | Custer | 3 hr |
| Aug 19, 6:14 PM CDT | Severe Thunderstorm Warning | OUN | Hardeman | 46 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 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.