Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 472, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Aug 22, 1997, 5:14 AM CDT for Comanche County, Oklahoma. It was in force for 61 min. 5 reports 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 22, 1997, 5:14 AM CDT (10:14 UTC)
- Expired
- Aug 22, 1997, 6:15 AM CDT
- In force
- 61 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Comanche County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 22, 5:30 AM CDT | Thunderstorm Wind | Lawton, OK | Severe thunderstorm winds downed power lines, limbs, and trees throughout Lawton and Fort Sill. Windows were also blown out on Fort Sill. |
| Aug 22, 5:40 AM CDT | Thunderstorm Wind 52 | Medicine Park, OK | measured at the Oklahoma Mesonet site |
| Aug 22, 5:45 AM CDT | Thunderstorm Wind 52 | Medicine Park, OK | measured at the Oklahoma Mesonet site |
| Aug 22, 5:55 AM CDT | Thunderstorm Wind 53 | Medicine Park, OK | measured at the Oklahoma Mesonet site |
| Aug 22, 6:11 AM CDT | Thunderstorm Wind 56 | Lawton, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 22, 3:30 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 10.2 hours before the alert went out and 116 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
- 528 J/kg
- Mixed-layer CIN
- -176 J/kg
- Mixed-layer LCL
- 1489 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
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 22, 3:05 AM CDT, 2 hours 9 minutes earlier.
Area forecast discussion, Aug 22, 3:05 AM CDT, 2 hours 9 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 300 AM CDT FRI AUG 22 1997 LUKS LIKE THE MAIN WX THIS PKG WL BE 1ST PD. TSTM COMPLEX EXPCTD TO CONT SWD ACRS FA THIS MORNG...WITH MCV RE-FIRING STORMS IN SERN ZNS THIS AFTN/EVENG. HVY RAIN WL BE FAIRLY QUICK TO MOVE OVR ANY GIVEN AREA...SO WL NOT ISSUE FFA ATTM. SUBSIDENSE BEHIND SHTWV WL PRECLUDE POPS TNGT...AND ISENT LIFT AREA WL HV MOVD MORE NE INTO UPR MO RVR VLY. SOME CHC OF EVENG TSTMS OVR ERN NM...BUT ACTVTY SHUD STAY W OF AREA. WITH LGT ELY WNDS TNGT AND MOCLR SKIES...SOME AREAS OF FOG WL FORM WITH VSBYS HI ENOUGH TO PRECLUDE MENTN IN PUBLIC PTN OF FCSTS. SAT SHUD BE QUIET AND WARMER AS WNDS RECOVER TO SLY IN WRN OK. SLGT CHC THAT ANY TSTMS FORMING TO OUR NW MAY SNEAK INTO NWRN OK SAT NGT. WL GO WITH 20 PCT POPS THERE. ..04.. GAG 89/65/91/66 1102 PNC 88/66/90/69 1101 HBR 87/66/90/67 2001 SPS 89/70/92/69 6101 OKC 86/68/89/68 3001 DUA 88/71/89/70 +2\00 .OKC... OK...NONE. TX...NONE.
In the hours before
Local storm report, Aug 22, 4:41 AM CDT, 33 minutes before
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</html>Local storm report, Aug 22, 4:45 AM CDT, 29 minutes before
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</html>Local storm report, Aug 22, 4:56 AM CDT, 18 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
0456 AM CDT FRI AUG 22 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0435 AM 4 WNW BESSIE OK 84 MPH WIND GUST, MEASURED
08/22/97 WASHITA OKLAHOMA MESONETWORK
0440 AM 4 WNW BESSIE OK 58 MPH WIND GUST, MEASURED
08/22/97 WASHITA OKLAHOMA MESONETWORK
PURPURALocal storm report, Aug 22, 5:00 AM CDT, 14 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
0456 AM CDT FRI AUG 22 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0435 AM 4 WNW BESSIE OK 84 MPH WIND GUST, MEASURED
08/22/97 WASHITA OKLAHOMA MESONETWORK
0440 AM 4 WNW BESSIE OK 58 MPH WIND GUST, MEASURED
08/22/97 WASHITA OKLAHOMA MESONETWORK
PURPURASpecial weather statement, Aug 22, 5:03 AM CDT, 11 minutes before
OKZ009>040-042-221030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 505 AM CDT FRI AUG 22 1997 SEVERE THUNDERSTORM WATCH NUMBER 712...WHICH WAS IN EFFECT UNTIL 9 AM... HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES... ELLIS...WOODWARD...ROGER MILLS...BECKHAM...DEWEY...CUSTER...MAJOR... BLAINE...GARFIELD...KINGFISHER...NOBLE...LOGAN...AND PAYNE. THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 AM FOR THE FOLLOWING COUNTIE.S... HARMON...GREER...JACKSON...KIOWA...WASHITA...CADDO...TILLMAN... COMANCHE...CANADIAN...GRADY...STEPHENS...OKLAHOMA...CLEVELAND... MCCLEAN...GARVIN...LINCOLN...POTTAWATOMIE...SEMINOLE...PONTOTOC... AND HUGHES.
Special weather statement, Aug 22, 5:05 AM CDT, 9 minutes before
OKZ009>040-042-221030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 505 AM CDT FRI AUG 22 1997 SEVERE THUNDERSTORM WATCH NUMBER 712...WHICH WAS IN EFFECT UNTIL 9 AM... HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES... ELLIS...WOODWARD...ROGER MILLS...BECKHAM...DEWEY...CUSTER...MAJOR... BLAINE...GARFIELD...KINGFISHER...NOBLE...LOGAN...AND PAYNE. THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 AM FOR THE FOLLOWING COUNTIES... HARMON...GREER...JACKSON...KIOWA...WASHITA...CADDO...TILLMAN... COMANCHE...CANADIAN...GRADY...STEPHENS...OKLAHOMA...CLEVELAND... MCCLEAN...GARVIN...LINCOLN...POTTAWATOMIE...SEMINOLE...PONTOTOC... AND HUGHES.
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 1:29 AM CDT | Severe Thunderstorm Warning | OUN | Woods | 61 min |
| Aug 22, 1:30 AM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Grant | 60 min |
| Aug 22, 2:00 AM CDT | Severe Thunderstorm Warning | OUN | Kay | 60 min |
| Aug 22, 2:17 AM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Woods | 48 min |
| Aug 22, 2:17 AM CDT | Severe Thunderstorm Warning | OUN | Grant | 48 min |
| Aug 22, 2:30 AM CDT | Severe Thunderstorm Warning | OUN | Garfield, Major | 60 min |
| Aug 22, 2:40 AM CDT | Severe Thunderstorm Warning | OUN | Harper, Woodward | 60 min |
| Aug 22, 2:55 AM CDT | Severe Thunderstorm Warning | OUN | Kay, Noble | 60 min |
| Aug 22, 2:59 AM CDT | Severe Thunderstorm Warning | OUN | Woods | 61 min |
| Aug 22, 3:58 AM CDT | Severe Thunderstorm Warning | OUN | Custer, Dewey | 62 min |
| Aug 22, 4:36 AM CDT | Severe Thunderstorm Warning | OUN | Caddo, Washita | 54 min |
| Aug 22, 4:52 AM CDT | Severe Thunderstorm Warning | OUN | Caddo, Kiowa | 68 min |
| Aug 22, 5:30 AM CDT | Severe Thunderstorm Warning | OUN | Grady | 60 min |
| Aug 22, 5:57 AM CDT | Severe Thunderstorm Warning | OUN | Cotton, Stephens, Tillman | 63 min |
| Aug 22, 6:28 AM CDT | Severe Thunderstorm Warning | OUN | Garvin | 62 min |
| Aug 22, 7:31 AM CDT | Severe Thunderstorm Warning | OUN | Carter, Love | 59 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.