Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 195, NWS Norman, OK

June 9, 1997Atoka County, Coal County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 9, 1997, 7:06 PM CDT for Atoka County, Coal County, Oklahoma. It was in force for 39 min. 2 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Jun 9, 1997, 7:06 PM CDT (00:06 UTC)
Expired: Jun 9, 1997, 7:45 PM CDT
In force: 39 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Atoka County, OK, Coal County, OK

The radar

The Norman radar (KTLX), 142 km from the middle of the area, began a volume at 00:05 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
Jun 9, 7:10 PM CDT	Hail 0.75	Centrahoma, OK
Jun 9, 7:10 PM CDT	Thunderstorm Wind	Centrahoma, OK	Several three to four inch diameter tree limbs were blown down.

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, 0.1 hours before the alert went out and 144 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 134 J/kg
Mixed-layer CIN: -208 J/kg
Mixed-layer LCL: 800 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: -125 m²/s²
0-3 km storm-relative helicity: -77 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KOKC 100009 RRA
SVROKC
OKC005-029-100045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
706 PM CDT MON JUN 09 1997

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 745 PM CDT FOR PEOPLE IN
THE FOLLOWING COUNTIES

IN SOUTHEASTERN OKLAHOMA
     NORTHERN ATOKA...COAL 

INCLUDING THE FOLLOWING LOCATIONS
     CENTRAHOMA...COALGATE...STRINGTOWN AND WARDVILLE

AT 706 PM CDT DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS EXTENDING FROM NEAR PARKER TO NEAR OLNEY MOVING EAST AT
25 MPH. WINDS IN EXCESS OF 60 MPH ARE LIKELY WITH THESE STORMS. WIND
DAMAGE WAS REPORTED IN PONTOTOC COUNTY AS THIS LINE OF STORMS MOVED
THROUGH.

MOVE TO AN INTERIOR ROOM AWAY FROM WINDOWS AND ELECTRICAL
APPLIANCES.  HEAVY RAINS MAY QUICKLY FLOOD ROADWAYS -- DO NOT
DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.


LAT...LON 3446  9574 3448  9637 3477  9639 3476  9576

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 9, 3:49 PM CDT, 3 hours 17 minutes earlier.

Area forecast discussion, Jun 9, 3:49 PM CDT, 3 hours 17 minutes before

AREA FORECAST DISCUSSION...CORRECTED FFA AREA
NATIONAL WEATHER SERVICE NORMAN OK
330 PM CDT MON JUN 9 1997

MAIN FORECAST PROBLEM THIS AFTERNOON IS PROBABILITY OF HEAVY
RAIN OVER NORTHERN PTN FA. UPPER DIFFLUENCE AND DEEP RICH
MOISTURE ARE IN PLACE AS UPPER LOW OPENS UP AND LIFTS OUT
OVER NRN OK TONIGHT.   LIMITING FACTOR FOR FLASH FLOODING IS THAT
THE GROUND IN MOST PLACES IS NOWHERE NEAR SATURATION...BUT
SLOW-MOVING HEAVY THUNDERSTORMS UNDER THE DIFFLUENT AREA SHOULD
REMEDY THAT QUICKLY. WILL GO WITH A FLASH FLOOD WATCH FOR ABOUT THE
NORTHERN HALF OF FA TONIGHT.  OTHERWISE TEMPS SIMILAR TO PREVIOUS
FORECAST/GUIDANCE AND WINDS LIGHT THROUGH PD.

FCSTID = 10
OKC   64  76  66  85 /  90  60  30  20
HBR   61  78  64  87 /  90  30  40  30
SPS   63  78  65  89 /  70  40  30  20
GAG   59  76  64  87 /  90  30  40  30
PNC   61  75  65  85 /  90  60  40  20
DUA   66  78  65  87 /  70  50  30  20

.OKC...
OK...FFA OKZ004>020-022>0031.
TX...NONE.

In the hours before

Local storm report, Jun 9, 6:00 PM CDT, 1 hour 6 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
600 PM CDT MON JUN 09 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

529 PM     FOSTER                    OK   1.75 INCH HAIL
06/09/97   GARVIN

552 PM     3 S RATLIFF CITY          OK   1.00 INCH HAIL
06/09/97   CARTER

MCCLURE

Local storm report, Jun 9, 6:02 PM CDT, 1 hour 4 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
600 PM CDT MON JUN 09 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

529 PM     FOSTER                    OK   1.75 INCH HAIL
06/09/97   GARVIN

552 PM     3 S RATLIFF CITY          OK   1.00 INCH HAIL
06/09/97   CARTER

MCCLURE

Local storm report, Jun 9, 6:40 PM CDT, 26 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
640 PM CDT MON JUN 09 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

620 PM     1 N MILO                  OK   0.75 INCH HAIL
06/09/97   CARTER

600 PM     3 NE ADA                  OK   WIND DAMAGE
06/09/97   PONTOTOC                       POWER POLES BLOWN DOWN
                                          3 1/2 MILES EAST OF HWY 99

625 PM     1 N RINGLING              OK   0.88 INCH HAIL
06/09/97   JEFFERSON

MCCLURE

Local storm report, Jun 9, 6:43 PM CDT, 23 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
640 PM CDT MON JUN 09 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

620 PM     1 N MILO                  OK   0.75 INCH HAIL
06/09/97   CARTER

600 PM     3 NE ADA                  OK   WIND DAMAGE
06/09/97   PONTOTOC                       POWER POLES BLOWN DOWN
                                          3 1/2 MILES EAST OF HWY 99

625 PM     1 N RINGLING              OK   0.88 INCH HAIL
06/09/97   JEFFERSON

MCCLURE

Local storm report, Jun 9, 6:55 PM CDT, 11 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
655 PM CDT MON JUN 09 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

615 PM     4 NE ADA                  OK   WIND DAMAGE
06/09/97   PONTOTOC                       ROOF DAMAGE TO SEVERAL HOMES
                                          2 SMALL BARNS BLOWN AWAY
                                          POWER POLES BLOWN DOWN
                                          IN OAKMAN

MCCLURE

Local storm report, Jun 9, 6:56 PM CDT, 10 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
655 PM CDT MON JUN 09 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

615 PM     4 NE ADA                  OK   WIND DAMAGE
06/09/97   PONTOTOC                       ROOF DAMAGE TO SEVERAL HOMES
                                          2 SMALL BARNS BLOWN AWAY
                                          POWER POLES BLOWN DOWN
                                          IN OAKMAN

MCCLURE

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 9, 7:20 PM CDT	Severe Thunderstorm Warning	OUN	Bryan	40 min
Jun 9, 7:23 PM CDT	Severe Thunderstorm Warning	OUN	Comanche	52 min
Jun 9, 7:27 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Kiowa, Tillman	48 min
Jun 9, 7:30 PM CDT	Severe Thunderstorm Warning	OUN	Marshall	45 min
Jun 9, 7:43 PM CDT	Severe Thunderstorm Warning	OUN	Atoka	62 min
Jun 9, 7:51 PM CDT	Severe Thunderstorm Warning	OUN	Grady, Stephens	39 min
Jun 9, 7:58 PM CDT	Severe Thunderstorm Warning	OUN	Bryan	62 min
Jun 9, 8:09 PM CDT	Severe Thunderstorm Warning	OUN	Comanche	51 min
Jun 9, 8:19 PM CDT	Severe Thunderstorm Warning	OUN	Cotton	41 min
Jun 9, 8:26 PM CDT	Severe Thunderstorm Warning	OUN	Grady, Stephens	49 min
Jun 9, 8:37 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Pushmataha	53 min
Jun 9, 8:47 PM CDT	Severe Thunderstorm Warning	OUN	Cotton	43 min
Jun 9, 8:56 PM CDT	Severe Thunderstorm Warning	OUN	Bryan, Choctaw	49 min
Jun 9, 9:08 PM CDT	Flash Flood Warning	OUN	Stephens	3 hr
Jun 9, 9:17 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson	43 min
Jun 9, 9:25 PM CDT	Severe Thunderstorm Warning	OUN	Pushmataha	50 min
Jun 9, 9:33 PM CDT	Severe Thunderstorm Warning	OUN	Choctaw	42 min
Jun 9, 9:57 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Jefferson, Love	48 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1997 Every 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.