Alert archive / Oklahoma / Tornado Watches in 2003
Tornado Watch 273
The Storm Prediction Center issued this tornado watch at May 6, 2003, 3:05 PM CDT for 4 counties in Arkansas; 18 counties in Oklahoma. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 6, 2003, 3:05 PM CDT (20:05 UTC)
- Expired
- May 6, 2003, 9:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 22 counties
Logan County, AR, Polk County, AR, Scott County, AR, Sebastian County, AR, Atoka County, OK, Bryan County, OK, Carter County, OK, Choctaw County, OK, Coal County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Love County, OK, Marshall County, OK, McCurtain County, OK, McIntosh County, OK, Murray County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK
The radar
The Norman radar (KTLX), 158 km from the middle of the area, began a volume at 20:08 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
23 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 3:18 PM CDT | Severe Thunderstorm Warning | OUN | Johnston, Pontotoc | 42 min |
| May 6, 3:39 PM CDT | Severe Thunderstorm Warning | OUN | Hughes | 51 min |
| May 6, 3:50 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 55 min |
| May 6, 4:00 PM CDT | Severe Thunderstorm Warning | OUN | Coal, Johnston, Pontotoc | 45 min |
| May 6, 4:18 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Pittsburg | 87 min |
| May 6, 4:26 PM CDT | Severe Thunderstorm Warning | OUN | Hughes | 49 min |
| May 6, 4:36 PM CDT | Severe Thunderstorm Warning | OUN | Love | 39 min |
| May 6, 4:45 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Coal, Johnston | 60 min |
| May 6, 5:39 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, Latimer, Muskogee, Pittsburg | 81 min |
| May 6, 5:46 PM CDT | Severe Thunderstorm Warning | OUN | Atoka | 59 min |
| May 6, 5:50 PM CDT | Severe Thunderstorm Warning | OUN | Love | 25 min |
| May 6, 6:02 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 88 min |
| May 6, 6:19 PM CDT | Severe Thunderstorm Warning | OUN | Coal | 26 min |
| May 6, 6:38 PM CDT | Severe Thunderstorm Warning | OUN | Marshall | 52 min |
| May 6, 6:45 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Coal, Johnston | 45 min |
| May 6, 6:48 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 72 min |
| May 6, 7:07 PM CDT | Severe Thunderstorm Warning | TSA | Sebastian | 53 min |
| May 6, 7:18 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 57 min |
| May 6, 7:28 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pushmataha | 77 min |
| May 6, 7:52 PM CDT | Severe Thunderstorm Warning | TSA | Sebastian | 38 min |
| May 6, 7:55 PM CDT | Severe Thunderstorm Warning | OUN | Atoka | 50 min |
| May 6, 8:00 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 75 min |
| May 6, 8:45 PM CDT | Severe Thunderstorm Warning | TSA | Latimer | 45 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, 8.1 hours before the alert went out and 160 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
- 236 J/kg
- Mixed-layer CIN
- -453 J/kg
- Mixed-layer LCL
- 2191 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 062003
SEL3
SPC WW 062005
ARZ000-OKZ000-070200-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 273
NWS STORM PREDICTION CENTER NORMAN OK
305 PM CDT TUE MAY 6 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
WEST CENTRAL ARKANSAS
SOUTHEAST OKLAHOMA
EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 305 PM UNTIL 900
PM CDT.
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 90 STATUTE MILES EAST AND WEST
OF A LINE FROM 20 MILES WEST NORTHWEST OF FORT SMITH ARKANSAS TO
15 MILES SOUTHEAST 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.
OTHER WATCH INFORMATION...CONTINUE...WW 266...WW 268...WW 269...WW
270...WW 271...WW 272...
DISCUSSION...DRY LINE IS BECOMING MORE ACTIVE AND SHOULD QUICKLY
INITIATE SEVERE THUNDERSTORMS ACROSS SERN OK...AS CAP WEAKENS. VERY
STRONG INSTABILITY AND SHEAR PARAMETERS WILL SUPPORT LONG-LIVED
SUPERCELLS WITH THE THREAT OF A FEW STRONG TORNADOES WELL INTO THE
EVENING.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 25025.
...EVANS
352,0930 334,0943 334,0974 352,0961SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 9:05 PM CDT | Tornado Watch | SPC | Phillips | 7 hr |
| May 5, 10:58 PM CDT | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Fulton, Marion | 2 hr |
| May 6, 1:26 AM CDT | Mesoscale Discussion | SPC | Crittenden, Lee, St. Francis | 3 hr |
| May 6, 1:50 AM CDT | Tornado Watch | SPC | Clay, Craighead, Crittenden, Cross, Greene, Lee and 4 more | 6 hr |
| May 6, 5:06 AM CDT | Mesoscale Discussion | SPC | Crittenden, Cross, Lee, Mississippi, Phillips, St. Francis | 3 hr |
| May 6, 10:32 AM CDT | Mesoscale Discussion | SPC | Benton, Crawford, Franklin, Sebastian, Washington | 118 min |
| May 6, 11:40 AM CDT | Tornado Watch | SPC | Benton, Boone, Carroll, Crawford, Franklin, Johnson and 4 more | 7 hr |
| May 6, 5:33 PM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Franklin, Fulton, Johnson and 6 more | 117 min |
| May 6, 6:55 PM CDT | Tornado Watch | SPC | Baxter, Benton, Boone, Carroll, Clark, Cleburne and 32 more | 5 hr |
| May 6, 2:47 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Choctaw, Coal, Haskell, Latimer and 5 more | 118 min |
| May 6, 3:42 PM CDT | Mesoscale Discussion | SPC | Craig, Delaware, Mayes, Nowata, Ottawa, Rogers and 1 more | 2 hr |
Nearby
Tornado Watches in Oklahoma, 2003Tornado Watches in Arkansas, 2003Every tornado watch in 2003
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.