Alert archive / Arkansas / Tornado Watches in 2008
Tornado Watch 183
The Storm Prediction Center issued this tornado watch at Apr 9, 2008, 8:10 PM CDT for 12 counties in Arkansas; McCurtain County, Oklahoma; Red River County, Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 9, 2008, 8:10 PM CDT (01:10 UTC)
- Expired
- Apr 10, 2008, 1:45 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
Counties Hempstead County, AR, Howard County, AR, Johnson County, AR, Little River County, AR, Logan County, AR, Montgomery County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Scott County, AR, Sevier County, AR, Yell County, AR, McCurtain County, OK, Red River County, TX
The radar
The Western Arkansas radar (KSRX), 46 km from the middle of the area, began a volume at 01:12 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 60%
- One or more EF2 to EF5 tornadoes
- 30%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 8:16 PM CDT | Tornado Warning | SHV | McCurtain | 44 min |
| Apr 9, 8:58 PM CDT | Tornado Warning | SHV | McCurtain | 32 min |
| Apr 9, 9:05 PM CDT | Tornado Warning | LZK | Polk, Scott | 40 min |
| Apr 9, 9:19 PM CDT | Severe Thunderstorm Warning | LZK | Johnson, Newton, Pope | 41 min |
| Apr 9, 9:45 PM CDT | Severe Thunderstorm Warning | LZK | Montgomery, Polk, Scott | 45 min |
| Apr 9, 10:12 PM CDT | Flash Flood Warning | LZK | Polk | 3 hr |
| Apr 9, 10:57 PM CDT | Severe Thunderstorm Warning | LZK | Logan, Yell | 48 min |
| Apr 9, 11:46 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Pope, Yell | 44 min |
| Apr 9, 11:54 PM CDT | Flash Flood Warning | LZK | Logan, Montgomery, Pike, Polk, Scott, Yell | 5 hr |
| Apr 9, 11:58 PM CDT | Flash Flood Warning | LZK | Johnson, Logan, Newton, Pope, Searcy, Yell | 5 hr |
| Apr 10, 12:21 AM CDT | Severe Thunderstorm Warning | LZK | Johnson, Logan, Pope | 39 min |
| Apr 10, 12:36 AM CDT | Tornado Warning | LZK | Johnson, Logan, Pope | 39 min |
| Apr 10, 1:12 AM CDT | Tornado Warning | LZK | Johnson, Pope, Searcy, Van Buren | 48 min |
| Apr 10, 1:22 AM CDT | Flash Flood Warning | LZK | Baxter, Cleburne, Conway, Izard, Perry, Pope and 4 more | 4 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 1.2 hours before the alert went out and 230 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 615 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 315 m²/s²
- 0-3 km storm-relative helicity
- 393 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 100105
SEL3
SPC WW 100105
ARZ000-OKZ000-TXZ000-100800-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 183
NWS STORM PREDICTION CENTER NORMAN OK
805 PM CDT WED APR 9 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
WESTERN ARKANSAS
SOUTHEAST OKLAHOMA
NORTHEAST TEXAS
EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 805 PM
UNTIL 300 AM CDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 45 STATUTE
MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHEAST OF FORT
SMITH ARKANSAS TO 35 MILES SOUTH SOUTHWEST OF DE QUEEN ARKANSAS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).
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 179...WW 180...WW
181...WW 182...
DISCUSSION...SCATTERED INTENSE/SUPERCELL THUNDERSTORMS ARE MOVING
EASTWARD ACROSS EASTERN OK INTO WESTERN AR. THESE STORMS ARE IN
REGION OF STRONG ASCENT AHEAD OF SUB-SYNOPTIC SURFACE LOW. VERY
STRONG WIND FIELDS AND MODERATE INSTABILITY SHOULD MAINTAIN THE RISK
OF LARGE HAIL...DAMAGING WINDS...AND TORNADOES FOR SEVERAL HOURS.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24035.
...HARTSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 7:28 PM CDT | Mesoscale Discussion | SPC | Crawford, Franklin, Hempstead, Howard, Johnson, Little River and 8 more | 62 min |
| Apr 9, 10:40 PM CDT | Tornado Watch | SPC | Crawford, Franklin, Sebastian | 7 hr |
| Apr 10, 1:45 AM CDT | Tornado Watch | SPC | Baxter, Boone, Cleburne, Conway, Faulkner, Fulton and 16 more | 8 hr |
| Apr 10, 3:00 AM CDT | Mesoscale Discussion | SPC | Clay, Craighead, Crittenden, Cross, Greene, Mississippi and 1 more | 60 min |
| Apr 10, 3:28 AM CDT | Tornado Watch | SPC | Clay, Craighead, Crittenden, Cross, Greene, Lawrence and 4 more | 7 hr |
| Apr 10, 3:54 AM CDT | Tornado Watch | SPC | Benton, Carroll, Crawford, Franklin, Hempstead, Howard and 10 more | 8 hr |
| Apr 10, 5:55 AM CDT | Mesoscale Discussion | SPC | Crawford, Franklin, Howard, Johnson, Little River, Logan and 4 more | 65 min |
| Apr 10, 8:32 AM CDT | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Clark, Cleveland, Columbia and 22 more | 58 min |
| Apr 10, 8:42 AM CDT | Tornado Watch | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 19 more | 7 hr |
| Apr 10, 9:27 AM CDT | Mesoscale Discussion | SPC | Clay, Cleburne, Conway, Craighead, Crittenden, Cross and 16 more | 2 hr |
| Apr 10, 9:51 AM CDT | Tornado Watch | SPC | Clay, Cleburne, Conway, Craighead, Crittenden, Cross and 19 more | 7 hr |
| Apr 10, 10:51 AM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Clay, Cleveland and 28 more | 84 min |
| Apr 10, 1:41 PM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Clay, Cleveland and 20 more | 2 hr |
| Apr 9, 8:13 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Garvin and 9 more | 62 min |
| Apr 9, 10:01 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Garvin and 14 more | 59 min |
| Apr 9, 11:22 PM CDT | Mesoscale Discussion | SPC | Beckham, Blaine, Caddo, Canadian, Cleveland, Comanche and 16 more | 53 min |
| Apr 10, 1:36 AM CDT | Mesoscale Discussion | SPC | Bryan, Carter, Jefferson, Johnston, Love, Marshall and 1 more | 54 min |
| Apr 10, 3:30 AM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Choctaw, Coal, Haskell, Latimer and 8 more | 60 min |
| Apr 10, 3:30 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Ellis, Grant, Harper, Kay, Woods and 1 more | 75 min |
| Apr 9, 7:44 PM CDT | Tornado Watch | SPC | Borden, Brown, Callahan, Coke, Coleman, Concho and 34 more | 8 hr |
| Apr 9, 11:46 PM CDT | Mesoscale Discussion | SPC | Andrews, Borden, Brown, Callahan, Coke, Coleman and 35 more | 59 min |
Nearby
Tornado Watches in Arkansas, 2008Tornado Watches in Oklahoma, 2008Tornado Watches in Texas, 2008Every tornado watch in 2008
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.