Alert archive / Oklahoma / Tornado Watches in 2004
Tornado Watch 104
The Storm Prediction Center issued this tornado watch at Apr 22, 2004, 1:40 PM CDT for 18 counties in Arkansas; 7 counties in Missouri; 39 counties in Oklahoma. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 22, 2004, 1:40 PM CDT (18:40 UTC)
- Expired
- Apr 22, 2004, 8:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 64 counties
Benton County, AR, Boone County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Howard County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Montgomery County, AR, Newton County, AR, Pike County, AR, Polk County, AR, Scott County, AR, Sebastian County, AR, Sevier County, AR, Washington County, AR, Yell County, AR, Barry County, MO, Christian County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Stone County, MO, Taney County, MO, Adair County, OK, Atoka County, OK, Bryan County, OK, Carter County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Craig County, OK, Creek County, OK, Delaware 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, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 107 km from the middle of the area, began a volume at 18:40 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
49 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 3:29 PM CDT | Severe Thunderstorm Warning | TSA | Tulsa, Wagoner | 76 min |
| Apr 22, 3:50 PM CDT | Severe Thunderstorm Warning | TSA | Rogers | 70 min |
| Apr 22, 3:53 PM CDT | Tornado Warning | TSA | Wagoner | 37 min |
| Apr 22, 3:56 PM CDT | Tornado Warning | TSA | Rogers | 64 min |
| Apr 22, 4:20 PM CDT | Tornado Warning | TSA | Tulsa | 55 min |
| Apr 22, 4:27 PM CDT | Tornado Warning | TSA | Mayes | 63 min |
| Apr 22, 4:34 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 56 min |
| Apr 22, 4:36 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 24 min |
| Apr 22, 4:42 PM CDT | Tornado Warning | TSA | Wagoner | 63 min |
| Apr 22, 5:02 PM CDT | Severe Thunderstorm Warning | SGF | Barry, Newton | 58 min |
| Apr 22, 5:03 PM CDT | Tornado Warning | TSA | Cherokee, Delaware | 72 min |
| Apr 22, 5:11 PM CDT | Tornado Warning | TSA | Okmulgee, Tulsa | 34 min |
| Apr 22, 5:23 PM CDT | Severe Thunderstorm Warning | OUN | Pottawatomie, Seminole | 67 min |
| Apr 22, 5:25 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee, Okmulgee | 80 min |
| Apr 22, 5:26 PM CDT | Tornado Warning | TSA | Mayes | 34 min |
| Apr 22, 5:30 PM CDT | Tornado Warning | TSA | Muskogee | 60 min |
| Apr 22, 5:32 PM CDT | Severe Thunderstorm Warning | OUN | Carter, Jefferson, Love, Murray | 58 min |
| Apr 22, 5:40 PM CDT | Tornado Warning | TSA | Wagoner | 65 min |
| Apr 22, 5:45 PM CDT | Tornado Warning | TSA | Okmulgee | 60 min |
| Apr 22, 5:48 PM CDT | Tornado Warning | TSA | Adair | 57 min |
| Apr 22, 5:54 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 51 min |
| Apr 22, 5:58 PM CDT | Severe Thunderstorm Warning | SGF | Lawrence | 32 min |
| Apr 22, 6:05 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 55 min |
| Apr 22, 6:13 PM CDT | Severe Thunderstorm Warning | SGF | Christian | 47 min |
| Apr 22, 6:17 PM CDT | Tornado Warning | SGF | Barry, Stone | 58 min |
| Apr 22, 6:22 PM CDT | Severe Thunderstorm Warning | TSA | Washington | 68 min |
| Apr 22, 6:26 PM CDT | Tornado Warning | TSA | Muskogee | 64 min |
| Apr 22, 6:31 PM CDT | Severe Thunderstorm Warning | SGF | Newton | 14 min |
| Apr 22, 6:31 PM CDT | Severe Thunderstorm Warning | OUN | Garvin, Seminole | 44 min |
| Apr 22, 6:31 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 59 min |
| Apr 22, 6:36 PM CDT | Tornado Warning | TSA | Cherokee | 54 min |
| Apr 22, 6:41 PM CDT | Severe Thunderstorm Warning | TSA | Wagoner | 64 min |
| Apr 22, 6:41 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 79 min |
| Apr 22, 6:45 PM CDT | Tornado Warning | TSA | Adair | 60 min |
| Apr 22, 6:46 PM CDT | Tornado Warning | TSA | Washington | 59 min |
| Apr 22, 6:51 PM CDT | Tornado Warning | TSA | Craig, Ottawa | 54 min |
| Apr 22, 6:55 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 95 min |
| Apr 22, 6:56 PM CDT | Flash Flood Warning | TSA | Adair, Cherokee, Muskogee, Okmulgee, Wagoner | 4 hr |
| Apr 22, 7:00 PM CDT | Severe Thunderstorm Warning | OUN | Hughes | 45 min |
| Apr 22, 7:10 PM CDT | Tornado Warning | SGF | Christian | 65 min |
| Apr 22, 7:14 PM CDT | Tornado Warning | SGF | Stone | 31 min |
| Apr 22, 7:18 PM CDT | Severe Thunderstorm Warning | SGF | Barry | 57 min |
| Apr 22, 7:26 PM CDT | Tornado Warning | TSA | Cherokee, Muskogee | 64 min |
| Apr 22, 7:29 PM CDT | Tornado Warning | SGF | Taney | 61 min |
| Apr 22, 7:35 PM CDT | Flash Flood Warning | TSA | Washington | 3 hr |
| Apr 22, 7:42 PM CDT | Tornado Warning | TSA | Washington | 63 min |
| Apr 22, 7:47 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 58 min |
| Apr 22, 7:52 PM CDT | Tornado Warning | SGF | Barry, Stone | 53 min |
| Apr 22, 7:59 PM CDT | Tornado Warning | SGF | McDonald | 61 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 6.7 hours before the alert went out and 165 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
- 900 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 473 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 232 m²/s²
- 0-3 km storm-relative helicity
- 312 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.3
The text
As transmitted, in the capitals the NWS used until 2016.
581
WWUS20 KWNS 221850
SEL4
SPC WW 221840
ARZ000-MOZ000-OKZ000-230100-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 104
NWS STORM PREDICTION CENTER NORMAN OK
140 PM CDT THU APR 22 2004
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
WESTERN ARKANSAS
SOUTHWEST MISSOURI
EASTERN OKLAHOMA
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 140 PM UNTIL
800 PM CDT.
TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS ALONG AND 110 STATUTE MILES EAST AND
WEST OF A LINE FROM 40 MILES WEST NORTHWEST OF MONETT MISSOURI TO
45 MILES EAST OF DURANT OKLAHOMA.
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
DISCUSSION...BOUNDARY LAYER CONTINUES TO DESTABILIZE WITH HEATING
NEAR/EAST OF SURFACE LOW/INVERTED SURFACE TROUGH EXTENDING FROM EAST
CENTRAL OKLAHOMA INTO SOUTHWEST MISSOURI. LOW-LEVEL WARM ADVECTION
IS PROVIDING SUPPORT FOR LARGE-SCALE UPWARD VERTICAL MOTION...AND
WILL CONTRIBUTE TO INTENSE CONVECTIVE DEVELOPMENT IN ENVIRONMENT
WITH MEAN MIXED LAYER CAPE UP TO 2000 J/KG. WITH MID-LEVEL CAP SLOW
TO WEAKEN...DISCRETE SUPERCELLS ARE LIKELY FOR SEVERAL
HOURS...ENHANCED BY DIFLUENT/DIVERGENT UPPER FLOW...BEFORE STORMS
INCREASE IN COVERAGE TOWARD EARLY EVENING. VERY LARGE HAIL/DAMAGING
WIND GUSTS ARE LIKELY...WITH ISOLATED TORNADOES ALSO POSSIBLE.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 26020.
...KERR
370,0923 335,0934 335,0973 370,0963SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 21, 7:01 PM CDT | Mesoscale Discussion | SPC | Clay, Craighead, Crittenden, Cross, Greene, Lawrence and 6 more | 119 min |
| Apr 21, 8:12 PM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Baxter, Benton, Boone, Bradley and 52 more | 63 min |
| Apr 21, 10:10 PM CDT | Mesoscale Discussion | SPC | Benton, Washington | 95 min |
| Apr 21, 10:50 PM CDT | Severe Thunderstorm Watch | SPC | Crawford, Sebastian | 5 hr |
| Apr 22, 1:43 AM CDT | Mesoscale Discussion | SPC | Crawford, Logan, Sebastian | 92 min |
| Apr 22, 12:32 PM CDT | Mesoscale Discussion | SPC | Benton, Washington | 88 min |
| Apr 22, 3:26 PM CDT | Mesoscale Discussion | SPC | Crawford, Franklin, Johnson, Logan, Madison, Newton and 6 more | 64 min |
| Apr 22, 5:27 PM CDT | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Crawford, Franklin, Howard and 12 more | 63 min |
| Apr 22, 6:23 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Crawford, Franklin, Howard, Johnson and 11 more | 67 min |
| Apr 21, 7:06 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beaver, Blaine, Dewey, Ellis, Harper and 3 more | 2 hr |
| Apr 21, 7:51 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Blaine, Choctaw, Cleveland, Creek, Delaware and 18 more | 84 min |
| Apr 21, 8:35 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Blaine, Dewey, Ellis, Garfield, Grant and 9 more | 5 hr |
| Apr 21, 8:35 PM CDT | Tornado Watch | SPC | Atoka, Bryan, Choctaw, Coal, Haskell, Hughes and 6 more | 5 hr |
| Apr 21, 10:26 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Choctaw, Coal, Haskell, Hughes and 7 more | 64 min |
| Apr 21, 10:56 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Garfield, Grant, Kay, Kingfisher, Logan and 2 more | 94 min |
| Apr 22, 4:30 PM CDT | Tornado Watch | SPC | Bryan, Love | 6 hr |
Nearby
Tornado Watches in Oklahoma, 2004Tornado Watches in Arkansas, 2004Tornado Watches in Missouri, 2004Every tornado watch in 2004
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.