Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 155, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at May 26, 1997, 9:49 PM CDT for Atoka County, Johnston County, Oklahoma. It was in force for 41 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
- May 26, 1997, 9:49 PM CDT (02:49 UTC)
- Expired
- May 26, 1997, 10:30 PM CDT
- In force
- 41 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Atoka County, OK, Johnston County, OK
The radar
The Norman radar (KTLX), 139 km from the middle of the area, began a volume at 02:52 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.
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 26, 8:45 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 2.8 hours before the alert went out and 137 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
- 3123 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 1331 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 271 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 14.6
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 May 26, 3:50 PM CDT, 5 hours 59 minutes earlier.
Area forecast discussion, May 26, 3:50 PM CDT, 5 hours 59 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 345 PM CDT MON MAY 26 1997 MODELS IN GNRL AGREEMENT...WITH NGM AND RUC HAVING BEST TIME WITH SFC LOW MOVING NEWD ACRS CNTRL OK. ETA KEEPS LOW MOVG ACRS RED RVR. TRICK THIS PKG WL BE POPS. NOTHING HAPPENING YET AND THINK BEST CHC FOR WDSPRD CONVECTION WL BE ACRS NERN PTN OF FA AND AREAS TO THE NORTH AND EAST. WL PUT IN SLGT CHC TO CHC POPS ACRS NRN...CNTRL AND SERN ZNS. FEEL SLGT CHC POPS WARRENTED ACRS NWRN OK WITH PROX TO SWRN KS ACTIVITY AND SPC WATCH. WITH MAIN WAVE COMING THRU TUES AND TUES NIGHT...WL LEAVE AT LEAST CHEAP SLGT CHC POPS ACRS CNTRL AND ERN ZNS AS MSTR IS NOT TOTALLY GONE. TEMPS WL COOL DOWN OVR NEXT FEW DAYS BEFORE WARM UP IN LATE WEEK. WL GO CLOSER TO FWC GUID DUE TO FAN BIAS. FCSTID = 11 OKC 63 80 58 77 / 20 20 20 10 HBR 57 82 56 80 / 20 10 10 0 SPS 62 85 59 81 / 10 10 10 10 GAG 53 74 51 78 / 20 10 10 0 PNC 63 79 59 77 / 30 20 20 10 DUA 66 86 61 80 / 30 20 30 10 .OKC... OK...NONE. TX...NONE.
In the hours before
Local storm report, May 26, 6:50 PM CDT, 2 hours 59 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
650 PM CDT MON MAY 26 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0645 PM 1 N CROMWELL OK TORNADO
05/26/97 SEMINOLE
FMLocal storm report, May 26, 6:51 PM CDT, 2 hours 58 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
650 PM CDT MON MAY 26 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
x ....COUNTY LOCATION....
0645 PM 1 N CROMWELL OK TORNADO
05/26/97 SEMINOLE
FMLocal storm report, May 26, 8:16 PM CDT, 1 hour 33 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
815 PM CDT MON MAY 26 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0811 PM STONEWALL OK 0.75 INCH HAIL
05/26/97 PONTOTOC
FMLocal storm report, May 26, 8:23 PM CDT, 1 hour 26 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
825 PM CDT MON MAY 26 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0811 PM 4 E ADA OK 1.00 INCH HAIL
05/26/97 PONTOTOC
FMLocal storm report, May 26, 8:34 PM CDT, 1 hour 15 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
835 PM CDT MON MAY 26 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0829 PM 1 NE ALLEN OK 1.75 INCH HAIL
05/26/97 PONTOTOC
FMLocal storm report, May 26, 8:35 PM CDT, 1 hour 14 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
835 PM CDT MON MAY 26 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0829 PM 1 NE ALLEN OK 1.75 INCH HAIL
05/26/97 PONTOTOC
FMThe office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 7:52 PM CDT | Tornado Warning | OUN | Hughes | 23 min |
| May 26, 8:03 PM CDT | Severe Thunderstorm Warning | OUN | Pontotoc | 42 min |
| May 26, 8:11 PM CDT | Severe Thunderstorm Warning | OUN | Johnston | 49 min |
| May 26, 8:24 PM CDT | Severe Thunderstorm Warning | OUN | Coal, Hughes | 51 min |
| May 26, 8:31 PM CDT | Severe Thunderstorm Warning | OUN | Carter, Love, Marshall | 49 min |
| May 26, 9:00 PM CDT | Tornado Warning | OUN | Johnston, Marshall | 30 min |
| May 26, 9:04 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Bryan, Johnston | 41 min |
| May 26, 9:16 PM CDT | Severe Thunderstorm Warning | OUN | Coal, Hughes | 44 min |
| May 26, 9:18 PM CDT | Tornado Warning | OUN | Marshall | 27 min |
| May 26, 9:21 PM CDT | Severe Thunderstorm Warning | OUN | Bryan | 39 min |
| May 26, 9:39 PM CDT | Tornado Warning | OUN | Bryan, Marshall | 36 min |
| May 26, 10:08 PM CDT | Flash Flood Warning | OUN | Johnston, Marshall | 3 hr |
| May 26, 10:13 PM CDT | Tornado Warning | OUN | Bryan, Marshall | 47 min |
| May 26, 10:31 PM CDT | Severe Thunderstorm Warning | OUN | Pushmataha | 49 min |
| May 26, 10:40 PM CDT | Tornado Warning | OUN | Marshall | 35 min |
| May 26, 10:45 PM CDT | Tornado Warning | OUN | Pushmataha | 45 min |
| May 26, 11:23 PM CDT | Severe Thunderstorm Warning | OUN | Choctaw, Pushmataha | 52 min |
| May 27, 12:01 AM CDT | Severe Thunderstorm Warning | OUN | Choctaw, Pushmataha | 59 min |
| May 27, 1:00 AM CDT | Severe Thunderstorm Warning | OUN | Choctaw | 30 min |
| May 27, 1:30 AM CDT | Severe Thunderstorm Warning | OUN | Choctaw | 30 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.