Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 623, NWS Norman, OK

September 10, 1999Beckham County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Sep 10, 1999, 7:20 PM CDT for Beckham County, Oklahoma. It was in force for 40 min. 2 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: Sep 10, 1999, 7:20 PM CDT (00:20 UTC)
Expired: Sep 10, 1999, 8:00 PM CDT
In force: 40 min
Issued by: NWS Norman, OK
Area: Whole counties

County Beckham County, OK

What was reported inside it

Time	Report	Where	Remark
Sep 10, 7:40 PM CDT	Thunderstorm Wind 52	Mayfield, OK
Sep 10, 7:45 PM CDT	Thunderstorm Wind 56	Elk City, 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 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 Sep 10, 3:00 PM CDT, 4 hours 20 minutes earlier.

Area forecast discussion, Sep 10, 3:00 PM CDT, 4 hours 20 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
300 PM CDT FRI SEP 10 1999

LOOKS TO BE A VERY ACTIVE WEEKEND ACROSS MOST OF CWA AS MULTIPLE
SHORT WAVES AND A FRONT MAKE THEIR WAY ACROSS THE CENTRAL UNITED
STATES. FIRST IN THE LINE IS HELPING TO KEEP THE WAA ACTIVITY THAT
DEVELOPED EARLY THIS MORNING GOING ACROSS NE OK THIS AFTERNOON. NEXT
WAVE IS NOW MOVING OUT OF CENTRAL AND SOUTHERN ROCKIES AND SHOWERS
AND THUNDERSTORMS HAVE ALREADY BEGUN ACROSS PORTIONS OF CENTRAL AND
WESTERN KS. THIS ACTIVITY WILL LIKELY CONT TO DEVELOP AND EXPAND
WEST AND SOUTH AND AS WAVE MAKES ITS WAY EAST TONIGHT. SEVERE STORMS
ARE A GOOD BET LATE THIS AFTERNOON AND TONIGHT AS ATMOSPHERE
BECOMES INCREASINGLY UNSTABLE WITH DEWPOINTS AT 18Z ALREADY IN THE
MID AND UPPER 60S. ALTHOUGH WIND FIELDS ARE BEST TO OUR NORTH...THEY
WILL BE SUFFICIENT TO SUSTAIN SEVERE STORMS INTO THE EVENING AND
OVERNIGHT PERIOD. EXPECT A LARGE COMPLEX TO DEVELOP ACROSS NORTHERN
OK/SOUTHERN KS THIS EVENING AND MOVE SOUTH ACROSS MUCH OF STATE
OVERNIGHT.

SHOULD GET A BREAK IN THE ACTIVITY FOR MUCH OF SATURDAY AS COMPLEX
SHOULD BE MAKES ITS WAY SOUTH INTO SOUTHERN AND SOUTHEASTERN
OKLAHOMA DURING THE MORNING HOURS. THIS SHOULD LEAVE PLENTY OF TIME
FOR THE ATMOSPHERE TO RECOVER FOR MORE STORMS TO DEVELOP SATURDAY
AFTERNOON AND EVENING. SHOWER AND THUNDERSTORMS WILL LIKELY CONTINUE
THROUGH SUNDAY IN ADVANCE OF ANOTHER WAVE DROPPING SOUTH INTO LONG WAVE
TROUGH ACROSS NORTHERN PLAINS ALONG WITH FRONT MAKING ITS WAY ACROSS
STATE DURING THE DAY. SOME MODELS SHOWING RESIDUAL MOISTURE
REMAINING ACROSS STATE EVEN INTO MONDAY. THEREFORE WILL KEEP SOME
POPS CONT INTO SUNDAY NIGHT ACROSS PORTIONS OF CENTRAL AND
SOUTH...BUT INSTEAD OF YO-YOING THE FORECAST WILL LEAVE POPS OUT OF
FIRST PART OF EXTENDED...BUT WILL HAVE TO WATCH CLOSELY.

OTHERWISE EXTENDED LOOKS TO BE COOLER AND DRIER WITH COOL SURFACE
HIGH BUILDING SOUTH INTO SOUTHERN U.S.

FCSTID = 30
OKC   70  91  70  85 /  50  30  30  30
HBR   68  93  67  85 /  40  20  30  30
SPS   71  95  70  90 /  40  20  20  30
GAG   67  92  65  82 /  50  20  40  30
PNC   70  90  68  82 /  60  30  40  30
DUA   70  92  70  90 /  30  30  20  30

.OUN...
OK...NONE.
TX...NONE.

In the hours before

Local storm report, Sep 10, 5:52 PM CDT, 1 hour 28 minutes before

MESONET SEVERE WIND REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
0552 PM CDT FRI SEP 10 1999

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

0540 PM    1 SW LAHOMA               OK   65 MPH WIND GUST MEASURED
09/10/99   MAJOR                          OKLAHOMA MESONET

JS

Local storm report, Sep 10, 5:52 PM CDT, 1 hour 28 minutes before

MESONET SEVERE WIND REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
0552 PM CDT FRI SEP 10 1999

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

0540 PM    1 SW LAHOMA               OK   65 MPH WIND GUST MEASURED
09/10/99   MAJOR                          OKLAHOMA MESONET

JS

Local storm report, Sep 10, 6:09 PM CDT, 1 hour 11 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
609 PM CDT FRI SEP 10 1999

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

0600 PM    DAVIS                     OK   65 MPH WIND GUST
09/10/99   MURRAY                         WIND DAMAGE TO AN AWNING AT
                                          A LUMBER YARD IN DAVIS.
                                          REPORT FROM DAVIS POLICE.

0530 PM    4 N HEALDTON              OK   60 MPH WIND GUST
09/10/99   CARTER                         PUBLIC REPORT

COLE

Local storm report, Sep 10, 6:09 PM CDT, 1 hour 11 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
609 PM CDT FRI SEP 10 1999

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

0600 PM    DAVIS                     OK   65 MPH WIND GUST
09/10/99   MURRAY                         WIND DAMAGE TO AN AWNING AT
                                          A LUMBER YARD IN DAVIS.
                                          REPORT FROM DAVIS POLICE.

0530 PM    4 N HEALDTON              OK   60 MPH WIND GUST
09/10/99   CARTER                         PUBLIC REPORT

COLE

Local storm report, Sep 10, 6:38 PM CDT, 42 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
638 PM CDT FRI SEP 10 1999

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

0630 PM    5 NE ARDMORE              OK   60 MPH WIND GUST
09/10/99   CARTER                         REPORTED BY EM

JS

Local storm report, Sep 10, 6:38 PM CDT, 42 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
638 PM CDT FRI SEP 10 1999

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

0630 PM    5 NE ARDMORE              OK   60 MPH WIND GUST
09/10/99   CARTER                         REPORTED BY EM

JS

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 10, 7:07 PM CDT	Severe Thunderstorm Warning	OUN	Dewey	38 min
Sep 10, 7:30 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher	30 min
Sep 10, 7:32 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Dewey	28 min
Sep 10, 7:35 PM CDT	Tornado Warning	OUN	Hughes	25 min
Sep 10, 7:57 PM CDT	Severe Thunderstorm Warning	OUN	Kingfisher	33 min
Sep 10, 8:21 PM CDT	Severe Thunderstorm Warning	OUN	Logan	39 min
Sep 10, 8:41 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Oklahoma	49 min
Sep 10, 8:51 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Payne	54 min
Sep 10, 9:39 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain	36 min
Sep 10, 9:39 PM CDT	Severe Thunderstorm Warning	OUN	Oklahoma	36 min
Sep 10, 9:47 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie	43 min
Sep 10, 9:47 PM CDT	Severe Thunderstorm Warning	OUN	Seminole	43 min
Sep 10, 11:20 PM CDT	Tornado Warning	OUN	Garvin, Pontotoc	25 min
Sep 10, 11:49 PM CDT	Severe Thunderstorm Warning	OUN	Pontotoc	41 min
Sep 11, 4:56 PM CDT	Severe Thunderstorm Warning	OUN	Wichita	34 min
Sep 11, 5:29 PM CDT	Severe Thunderstorm Warning	OUN	Wichita	31 min
Sep 11, 6:54 PM CDT	Severe Thunderstorm Warning	OUN	Archer, Wichita	36 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1999 Every severe thunderstorm warning in 1999

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.