Alert archive / Oklahoma / Tornado Watches in 1999

Tornado Watch 208

May 4, 19998 counties in Arkansas; 33 counties in Oklahoma; 22 counties in Texas

The Storm Prediction Center issued this tornado watch at May 4, 1999, 11:00 AM CDT for 8 counties in Arkansas; 33 counties in Oklahoma; 22 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: May 4, 1999, 11:00 AM CDT (16:00 UTC)
Expired: May 4, 1999, 4:00 PM CDT
In force: 5 hr
Issued by: the Storm Prediction Center

All 63 counties

Benton County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Madison County, AR, Scott County, AR, Sebastian County, AR, Washington County, AR, Adair County, OK, Atoka County, OK, Bryan County, OK, Carter County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Creek County, OK, Garvin County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Lincoln County, OK, Love County, OK, Marshall County, OK, Mayes County, OK, McCurtain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Pawnee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Collin County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Fannin County, TX, Franklin County, TX, Grayson County, TX, Hopkins County, TX, Hunt County, TX, Kaufman County, TX, Lamar County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Rains County, TX, Red River County, TX, Rockwall County, TX, Tarrant County, TX, Titus County, TX, Wise County, TX, Wood County, TX

The radar

The Norman radar (KTLX), 160 km from the middle of the area, began a volume at 16:04 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.

Warnings issued inside it

67 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 4, 11:05 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	60 min
May 4, 11:13 AM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	47 min
May 4, 11:23 AM CDT	Flash Flood Warning	TSA	Creek, Rogers, Tulsa, Washington	4 hr
May 4, 11:29 AM CDT	Tornado Warning	TSA	Latimer	46 min
May 4, 11:34 AM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	26 min
May 4, 11:41 AM CDT	Tornado Warning	OUN	Pottawatomie, Seminole	34 min
May 4, 11:45 AM CDT	Severe Thunderstorm Warning	FWD	Montague	45 min
May 4, 11:47 AM CDT	Tornado Warning	OUN	Coal	28 min
May 4, 11:48 AM CDT	Tornado Warning	TSA	Haskell, LeFlore	42 min
May 4, 11:57 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	48 min
May 4, 12:00 PM CDT	Tornado Warning	OUN	Hughes, Seminole	30 min
May 4, 12:01 PM CDT	Severe Thunderstorm Warning	FWD	Wise	44 min
May 4, 12:03 PM CDT	Severe Thunderstorm Warning	OUN	Murray, Pontotoc	42 min
May 4, 12:13 PM CDT	Severe Thunderstorm Warning	FWD	Hood, Parker	47 min
May 4, 12:15 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Johnston	45 min
May 4, 12:18 PM CDT	Severe Thunderstorm Warning	FWD	Cooke	42 min
May 4, 12:21 PM CDT	Tornado Warning	TSA	Haskell, Sequoyah	54 min
May 4, 12:28 PM CDT	Severe Thunderstorm Warning	FWD	Tarrant	47 min
May 4, 12:36 PM CDT	Severe Thunderstorm Warning	OUN	Hughes	24 min
May 4, 12:41 PM CDT	Tornado Warning	FWD	Hood, Parker	34 min
May 4, 12:47 PM CDT	Severe Thunderstorm Warning	FWD	Denton	43 min
May 4, 12:51 PM CDT	Tornado Warning	FWD	Tarrant	39 min
May 4, 12:59 PM CDT	Tornado Warning	TSA	Crawford, Washington	46 min
May 4, 1:00 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Grayson	45 min
May 4, 1:00 PM CDT	Severe Thunderstorm Warning	FWD	Cooke	45 min
May 4, 1:06 PM CDT	Tornado Warning	FWD	Collin	24 min
May 4, 1:09 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee	51 min
May 4, 1:16 PM CDT	Severe Thunderstorm Warning	FWD	Hopkins	44 min
May 4, 1:21 PM CDT	Tornado Warning	SHV	McCurtain	34 min
May 4, 1:22 PM CDT	Flash Flood Warning	TSA	Haskell, McIntosh, Muskogee, Pittsburg	3 hr
May 4, 1:22 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, LeFlore, Sequoyah	3 hr
May 4, 1:22 PM CDT	Flash Flood Warning	TSA	Mayes, Wagoner	3 hr
May 4, 1:22 PM CDT	Flash Flood Warning	TSA	Latimer	3 hr
May 4, 1:24 PM CDT	Severe Thunderstorm Warning	FWD	Denton	51 min
May 4, 1:29 PM CDT	Severe Thunderstorm Warning	FWD	Tarrant	46 min
May 4, 1:32 PM CDT	Tornado Warning	SHV	Franklin, Red River	48 min
May 4, 1:33 PM CDT	Severe Thunderstorm Warning	LZK	Polk, Scott	47 min
May 4, 1:34 PM CDT	Tornado Warning	TSA	Washington	41 min
May 4, 1:35 PM CDT	Severe Thunderstorm Warning	FWD	Fannin	40 min
May 4, 1:44 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer	46 min
May 4, 1:49 PM CDT	Tornado Warning	LZK	Scott	51 min
May 4, 1:50 PM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	40 min
May 4, 1:53 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw	67 min
May 4, 1:54 PM CDT	Tornado Warning	TSA	Benton	51 min
May 4, 2:05 PM CDT	Tornado Warning	SHV	Wood	40 min
May 4, 2:05 PM CDT	Tornado Warning	SHV	Titus	45 min
May 4, 2:06 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	39 min
May 4, 2:07 PM CDT	Severe Thunderstorm Warning	FWD	Lamar	53 min
May 4, 2:09 PM CDT	Severe Thunderstorm Warning	FWD	Dallas	51 min
May 4, 2:17 PM CDT	Severe Thunderstorm Warning	FWD	Fannin	28 min
May 4, 2:29 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer	46 min
May 4, 2:33 PM CDT	Tornado Warning	SHV	Red River	47 min
May 4, 2:39 PM CDT	Severe Thunderstorm Warning	TSA	Crawford	51 min
May 4, 2:39 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	51 min
May 4, 2:45 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Washington	45 min
May 4, 2:55 PM CDT	Severe Thunderstorm Warning	FWD	Dallas	50 min
May 4, 2:57 PM CDT	Severe Thunderstorm Warning	SHV	McCurtain	63 min
May 4, 3:04 PM CDT	Severe Thunderstorm Warning	FWD	Lamar	41 min
May 4, 3:08 PM CDT	Severe Thunderstorm Warning	TSA	Sebastian	52 min
May 4, 3:23 PM CDT	Severe Thunderstorm Warning	TSA	Crawford	37 min
May 4, 3:24 PM CDT	Severe Thunderstorm Warning	FWD	Kaufman, Van Zandt	36 min
May 4, 3:25 PM CDT	Tornado Warning	FWD	Lamar	35 min
May 4, 3:28 PM CDT	Severe Thunderstorm Warning	TSA	Franklin	47 min
May 4, 3:38 PM CDT	Severe Thunderstorm Warning	FWD	Hopkins, Hunt, Rains	37 min
May 4, 3:48 PM CDT	Severe Thunderstorm Warning	LZK	Polk, Scott	47 min
May 4, 3:58 PM CDT	Severe Thunderstorm Warning	TSA	Madison	47 min
May 4, 3:59 PM CDT	Severe Thunderstorm Warning	FWD	Kaufman, Van Zandt	61 min

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 4.0 hours before the alert went out and 155 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: 2175 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 545 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 369 m²/s²
0-3 km storm-relative helicity: 497 m²/s²
Significant tornado parameter: 5.3
Supercell composite: 24.7

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 3, 11:30 PM CDT	Tornado Watch	SPC	Benton, Crawford, Sebastian, Washington	6 hr
May 4, 3:00 PM CDT	Tornado Watch	SPC	Baxter, Benton, Boone, Carroll, Clark, Cleburne and 38 more	6 hr
May 4, 5:45 PM CDT	Tornado Watch	SPC	Arkansas, Ashley, Bradley, Calhoun, Chicot, Clay and 30 more	4 hr
May 3, 7:15 PM CDT	Tornado Watch	SPC	Alfalfa, Blaine, Bryan, Caddo, Canadian, Carter and 33 more	5 hr
May 3, 7:30 PM CDT	Tornado Watch	SPC	Love, Marshall	5 hr
May 3, 10:45 PM CDT	Tornado Watch	SPC	Alfalfa, Blaine, Caddo, Canadian, Carter, Cleveland and 42 more	6 hr
May 4, 12:00 AM CDT	Tornado Watch	SPC	Craig, Kay, Nowata, Osage, Ottawa, Washington	5 hr
May 4, 5:00 AM CDT	Tornado Watch	SPC	Alfalfa, Blaine, Caddo, Canadian, Carter, Cleveland and 41 more	6 hr
May 4, 3:00 AM CDT	Tornado Watch	SPC	Bandera, Brown, Burnet, Concho, Coryell, Crockett and 18 more	2 hr
May 4, 5:00 AM CDT	Tornado Watch	SPC	Archer, Baylor, Blanco, Bosque, Brown, Burnet and 46 more	6 hr

Nearby

Tornado Watches in Oklahoma, 1999 Tornado Watches in Texas, 1999 Tornado Watches in Arkansas, 1999 Every tornado watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.