Alert archive / Arkansas / Tornado Watches in 1998
Tornado Watch 148
The Storm Prediction Center issued this tornado watch at Mar 30, 1998, 11:00 PM CST for 42 counties in Arkansas; 8 counties in Missouri. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 1998, 11:00 PM CST (05:00 UTC)
- Expired
- Mar 31, 1998, 4:00 AM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 50 counties
Baxter County, AR, Boone County, AR, Clark County, AR, Clay County, AR, Cleburne County, AR, Cleveland County, AR, Conway County, AR, Dallas County, AR, Faulkner County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Greene County, AR, Hot Spring County, AR, Howard County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Johnson County, AR, Lawrence County, AR, Lincoln County, AR, Logan County, AR, Lonoke County, AR, Marion County, AR, Montgomery County, AR, Newton County, AR, Perry County, AR, Pike County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Searcy County, AR, Sevier County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Butler County, MO, Carter County, MO, Douglas County, MO, Howell County, MO, Oregon County, MO, Ozark County, MO, Ripley County, MO, Taney County, MO
The radar
The Little Rock radar (KLZK), 51 km from the middle of the area, began a volume at 05:04 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
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 11:38 PM CST | Severe Thunderstorm Warning | LZK | Pike | 62 min |
| Mar 31, 12:23 AM CST | Tornado Warning | LZK | Van Buren | 47 min |
| Mar 31, 1:05 AM CST | Severe Thunderstorm Warning | LZK | Faulkner | 50 min |
| Mar 31, 1:19 AM CST | Severe Thunderstorm Warning | LZK | Pulaski, Saline | 46 min |
| Mar 31, 1:29 AM CST | Severe Thunderstorm Warning | LZK | Cleburne | 51 min |
| Mar 31, 2:23 AM CST | Severe Thunderstorm Warning | LZK | Lonoke | 47 min |
| Mar 31, 2:27 AM CST | Severe Thunderstorm Warning | LZK | White | 48 min |
| Mar 31, 3:50 AM CST | Severe Thunderstorm Warning | LZK | Lonoke | 35 min |
| Mar 31, 4:00 AM CST | Severe Thunderstorm Warning | LZK | Prairie | 50 min |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 5.0 hours before the alert went out and 224 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
- 368 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 1388 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 247 m²/s²
- 0-3 km storm-relative helicity
- 389 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
702 WWUS9 KMKC 310429 SEL8 MKC WW 310429 MOZ000-ARZ000-311000- BULLETIN - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 148 STORM PREDICTION CENTER NORMAN OK 1029 PM CST MON MAR 30 1998 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF SOUTHERN MISSOURI CENTRAL ARKANSAS EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 1100 PM UNTIL 400 AM CST. TORNADOES...HAIL TO 1 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES SOUTH OF HOT SPRINGS ARKANSAS TO 30 MILES NORTHEAST OF WEST PLAINS MISSOURI. 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...THIS TORNADO WATCH REPLACES TORNADO WATCH NUMBER 145. WATCH NUMBER 145 WILL NOT BE IN EFFECT AFTER 1100 PM CST. CONTINUE...WW 146...WW 147... DISCUSSION...LINE OF INTENSE THUNDERSTORMS HAS ACCELERATED EAST DURING THE PAST HOUR. SEVERAL BOW STRUCTURES ARE EVIDENT... SUGGESTING A THREAT FOR DAMAGING WIND GUSTS. SHEAR PROFILES ARE FAVORABLE FOR ISOLATED SUPERCELLS. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION VECTOR 23040. ...VESCIO 334,0942 370,0925 370,0900 334,0914
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 7:00 PM CST | Tornado Watch | SPC | Benton, Boone, Carroll, Crawford, Franklin, Garland and 17 more | 6 hr |
| Mar 30, 7:15 PM CST | Severe Thunderstorm Watch | SPC | Little River | 6 hr |
| Mar 31, 12:00 AM CST | Tornado Watch | SPC | Ashley, Bradley, Calhoun, Columbia, Drew, Hempstead and 6 more | 4 hr |
| Mar 30, 9:00 PM CST | Tornado Watch | SPC | Audrain, Boone, Callaway, Camden, Cole, Crawford and 28 more | 6 hr |
Nearby
Tornado Watches in Arkansas, 1998Tornado Watches in Missouri, 1998Every tornado watch in 1998
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.