Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 64, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Mar 7, 2000, 6:40 PM CST for Jefferson County, Oklahoma. It was in force for 65 min. 5 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
- Mar 7, 2000, 6:40 PM CST (00:40 UTC)
- Expired
- Mar 7, 2000, 7:45 PM CST
- In force
- 65 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Jefferson County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 7, 7:00 PM CST | Hail 1 | Duncan, OK | |
| Mar 7, 7:02 PM CST | Hail 0.88 | Chickasha, OK | |
| Mar 7, 7:06 PM CST | Thunderstorm Wind | Comanche, OK | A barn was destroyed, and a car was damaged by flying debris. |
| Mar 7, 7:06 PM CST | Hail 0.88 | Duncan, OK | |
| Mar 7, 7:25 PM CST | Hail 0.88 | Cox 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 7, 5:30 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 0.7 hours before the alert went out and 65 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
- 588 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 838 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 220 m²/s²
- 0-3 km storm-relative helicity
- 290 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KOUN 080041
SVROKC
OKC051-067-137-080145-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
640 PM CST TUE MAR 7 2000
THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
GRADY COUNTY IN CENTRAL OKLAHOMA
JEFFERSON COUNTY IN SOUTHERN OKLAHOMA
STEPHENS COUNTY IN SOUTHERN OKLAHOMA
* UNTIL 745 PM CST
* AT 640 PM CST...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS EXTENDING FROM 1BINGER... TO ANADARKO... TO WALTERS.
THE STORMS WERE MOVING NORTHEAST AT 45 MPH.
* LOCATIONS IN THE WARNING INCLUDE ADDINGTON...ALEX...AMBER...
BRADLEY...BRAY...CHICKASHA...COMANCHE...DUNCAN...EMPIRE CITY...
GRADY...LOCO...MARLOW...MIDDLEBERG...MINCO...NINNEKAH...NORGE...
POCASSET...RUSH SPRINGS...RYAN...SUGDEN...TABLER...TUTTLE...VELMA
AND WAURIKA
HAIL UP TO THE SIZE OF GOLFBALLS AND WIND GUSTS IN EXCESS OF 60 MPH
ARE LIKELY. SEVERAL REPORTS OF QUARTER TO GOLFBALL SIZE HAIL... AND
WIND GUSTS OVER 60 MPH HAVE BEEN REPORTED AS THE STORMS MOVED
THROUGH SOUTHWEST OKLAHOMA.
LAT...LON 3535 9807 3482 9808 3401 9806 3400 9759
3478 9769 3532 9770
CJSWhat 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 Mar 7, 3:35 PM CST, 3 hours 5 minutes earlier.
Area forecast discussion, Mar 7, 3:35 PM CST, 3 hours 5 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 335 PM CST TUE MAR 7 2000 SEVERE WEATHER THREAT SEEMS TO BE WELL-COVERED BY THE MANY SPC DISCUSSIONS ALREADY ISSUED. ZONES WILL NATURALLY BE WORDED WITH SEVERE STORM TERMINOLOGY FOR TONIGHT. AFTER THE SQUALL LINE PASSES THROUGH TONIGHT... WINDS WILL SHIFT TO SOUTHWEST AND BEGIN TO INCREASE. IT APPEARS THAT WINDS TOMORROW WILL EASILY REACH WIND ADVISORY LEVELS... POSSIBLY EVEN APPROACH HIGH WIND WARNING SPEEDS IN THE NORTHWEST. WILL ISSUE A WIND ADVISORY FOR TOMORROW FOR THE ENTIRE FORECAST AREA... AND LEAVE THE OPTION OF A HIGH WIND WARNING FOR THE MIDNIGHT SHIFT. TRANQUIL WEATHER FOLLOWS... WITH THE BRIEF EXCEPTION OF FRIDAY AND FRIDAY NIGHT... WHEN THERE WILL BE ANOTHER CHANCE OF SHOWERS AND THUNDERSTORMS. AT THIS POINT... THAT EVENT LOOKS MUCH LESS POTENT THAN TONIGHT. FCSTID = 23 = CMS OKC 52 70 45 65 / 90 0 0 0 HBR 49 72 42 67 / 100 0 0 0 SPS 52 75 45 72 / 80 0 0 0 GAG 46 68 35 58 / 100 10 0 0 PNC 50 68 42 60 / 90 10 10 0 DUA 53 71 45 73 / 80 0 0 0 .OUN... OK...WIND ADVISORY ALL ZONES ON WEDNESDAY. TX...WIND ADVISORY ALL ZONES ON WEDNESDAY.
In the hours before
Local storm report, Mar 7, 5:44 PM CST, 56 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
544 PM CST TUE MAR 07 2000
TIME (CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0500 PM 4 0N DUKE OK 1.50 INCH HAIL
03/07/00 JACKSON SPOTTER REPORT
KTLocal storm report, Mar 7, 5:56 PM CST, 44 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
556 PM CST TUE MAR 07 2000
TIME (CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0535 PM 3 dW ROCKY OK WIND DAMAGE
03/07/00 WASHITA POWER POLES DOWN
MEDIA REPORT
KTLocal storm report, Mar 7, 6:16 PM CST, 24 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
616 PM CST TUE MAR 07 2000
TIME (CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0504 PM 5 E ALTUS OK 79 MPH WIND GUST
03/07/00 JACKSON HAM RADIO REPORT
KTLocal storm report, Mar 7, 6:19 PM CST, 21 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
619 PM CST TUE MAR 07 2000
TIME (CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0509 PM 7 E ALTUS OK .88 INCH HAIL
03/07/00 JACKSON EOC REPORT
0525 PM 8 SE ELECTRA TX .88 INCH HAIL
03/07/00 WICHITA HAM RADIO REPORT
0543 PM 10 W ARCHER CITY TX .75 INCH HAIL
03/07/00 ARCHER HAM RADIO REPORT
0551 PM ARCHER CITY TX .75 INCH HAIL
03/07/00 ARCHER HAM RADIO REPORT
0503 PM 5 S LONE WOLF OK .75 INCH HAIL
03/07/00 KIOWA HAM RADIO REPORT
0500 PM 1 S LONE WOLF OK 60 MPH WIND GUST
03/07/00 KIOWA HAM RADIO REPORT
0506 PM LONE WOLF OK 1.00 INCH HAIL
03/07/00 KIOWA HAM RADIO REPORT
0510 PM LONE WOLF OK 1.75 INCH HAIL
03/07/00 KIOWA HAM RADIO REPORT
0539 PM GOTEBO OK .88 INCH HAIL
03/07/00 KIOWA HAM RADIO REPORT
0605 PM BURKBURNETT TX .75 INCH HAIL
03/07/00 WICHITA HAM RADIO REPORT
0549 PM 4 S GOTEBO OK .75 INCH HAIL
03/07/00 KIOWA HAM RADIO REPORT
0457 PM 8 S VERNON TX 1.00 INCH HAIL
03/07/00 WILBARGER HAM RADIO REPORT
0507 PM OKLAUNION TX 1.00 INCH HAIL
03/07/00 WILBARGER HAM RADIO REPORT
0617 PM LAWTON OK 70 MPH WIND GUST
03/07/00 COMANCHE HAM RADIO REPORT
0615 PM LAWTON OK 1.75 INCH HAIL
03/07/00 COMANCHE HAM RADIO REPORT
0605 PM FAXON OK 62 MPH WIND GUST
03/07/00 COMANCHE HAM RADIO REPORT
0556 PM ARCHER CITY TX 1.75 INCH HAIL
03/07/00 ARCHER HAM RADIO REPORT
KTSpecial weather statement, Mar 7, 6:20 PM CST, 20 minutes before
OKZ004-009-010-014>016-021-022-033>037-TXZ083>085-087-088-080050- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 620 PM CST TUE MAR 7 2000 TORNADO WATCH NUMBER 71...IN EFFECT FOR PORTIONS OF WESTERN OKLAHOMA AND PARTS OF WESTERN NORTH TEXAS UNTIL 7 PM...HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES IN OKLAHOMA...HARPER...ELLIS...WOODWARD... ROGER MILLS...DEWEY...BECKHAM...WASHITA...HARMON...JACKSON...AND TILLMAN...AND IN TZEXAS...HARDEMAN...FOARD...KNOX...WILBARGER... AND BAYLOR. THE SEVERE WEATHER THREAT HAS MOVED OUT OF THESE COUNTIES. JAMES
Special weather statement, Mar 7, 6:37 PM CST, 3 minutes before
OKZ007-008-012-013-018>020-024>032-039>043-045>048-050>052-080200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 637 PM CST TUE MAR 7 2000 ...SEVERE WEATHER CAN BE EXPECTED THIS EVENING... AT 630 PM...A LINE OF STRONG TO OCCASIONALLY SEVERE THUNDERSTORMS... EXTENDED ALONG A LINE FROM BLAINE COUNTY...SOUTHWARD INTO CLAY COUNTY TEXAS. 60 TO 70 MPH WIND GUSTS...AND NICKEL TO QUARTER SIZE HAIL HAVE BEEN ASSOCIATED WITH THIS LINE OF STORMS ACROSS WESTERN OKLAHOMA...AND WESTERN PARTS OF NORTH TEXAS. BETWEEN 7 PM AND 10 PM...THIS LINE OF STORMS WILL MOVE EAST THROUGH MOST OF CENTRAL AND SOUTHEAST OKLAHOMA. BE PREPARED AS THESE STORMS MOVE THROUGH. JAMES
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 7, 6:10 PM CST | Tornado Warning | OUN | Comanche | 35 min |
| Mar 7, 6:21 PM CST | Severe Thunderstorm Warning | OUN | Blaine | 39 min |
| Mar 7, 6:23 PM CST | Severe Thunderstorm Warning | OUN | Cotton | 52 min |
| Mar 7, 6:36 PM CST | Severe Thunderstorm Warning | OUN | Canadian, Kingfisher | 54 min |
| Mar 7, 6:40 PM CST | Severe Thunderstorm Warning | OUN | Grady, Stephens | 65 min |
| Mar 7, 7:03 PM CST | Tornado Warning | OUN | Canadian | 27 min |
| Mar 7, 7:24 PM CST | Severe Thunderstorm Warning | OUN | Cleveland, McClain | 66 min |
| Mar 7, 7:24 PM CST | Severe Thunderstorm Warning | OUN | Oklahoma | 66 min |
| Mar 7, 7:28 PM CST | Severe Thunderstorm Warning | OUN | Garvin | 62 min |
| Mar 7, 7:35 PM CST | Severe Thunderstorm Warning | OUN | Carter | 55 min |
| Mar 7, 7:40 PM CST | Severe Thunderstorm Warning | OUN | Logan | 50 min |
| Mar 7, 7:58 PM CST | Severe Thunderstorm Warning | OUN | Garfield, Grant | 47 min |
| Mar 7, 8:16 PM CST | Severe Thunderstorm Warning | OUN | Pottawatomie | 59 min |
| Mar 7, 8:20 PM CST | Severe Thunderstorm Warning | OUN | Noble, Payne | 40 min |
| Mar 7, 8:54 PM CST | Severe Thunderstorm Warning | OUN | Seminole | 51 min |
| Mar 7, 9:44 PM CST | Severe Thunderstorm Warning | OUN | Hughes | 46 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2000Every severe thunderstorm warning in 2000
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.