Alert archive / Missouri / Tornado Watches in 1998

Tornado Watch 573

June 14, 19984 states

The Storm Prediction Center issued this tornado watch at Jun 14, 1998, 1:15 AM CDT for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 14, 1998, 1:15 AM CDT (06:15 UTC)
Expired
Jun 14, 1998, 7:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 84 counties

Adams County, IA, Appanoose County, IA, Davis County, IA, Decatur County, IA, Fremont County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Wayne County, IA, Atchison County, KS, Brown County, KS, Doniphan County, KS, Marshall County, KS, Nemaha County, KS, Republic County, KS, Washington County, KS, Adair County, MO, Andrew County, MO, Atchison County, MO, Audrain County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Chariton County, MO, Clark County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Howard County, MO, Knox County, MO, Lewis County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Marion County, MO, Mercer County, MO, Monroe County, MO, Nodaway County, MO, Platte County, MO, Putnam County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, Sullivan County, MO, Worth County, MO, Adams County, NE, Butler County, NE, Cass County, NE, Clay County, NE, Douglas County, NE, Fillmore County, NE, Gage County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Howard County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Merrick County, NE, Nance County, NE, Nemaha County, NE, Nuckolls County, NE, Otoe County, NE, Pawnee County, NE, Polk County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Thayer County, NE, Webster County, NE, York County, NE

The radar

The Omaha radar (KOAX), 100 km from the middle of the area, began a volume at 06:17 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.

IssuedProductOfficeCountiesLasted
Jun 14, 1:18 AM CDTTornado WarningEAXCarroll, Livingston42 min
Jun 14, 1:42 AM CDTSevere Thunderstorm WarningDMXAdams, Taylor33 min
Jun 14, 1:45 AM CDTSevere Thunderstorm WarningEAXChariton45 min
Jun 14, 2:06 AM CDTSevere Thunderstorm WarningDMXRinggold, Union49 min
Jun 14, 2:06 AM CDTSevere Thunderstorm WarningEAXHarrison, Worth54 min
Jun 14, 2:16 AM CDTSevere Thunderstorm WarningEAXMacon, Randolph44 min
Jun 14, 3:27 AM CDTFlash Flood WarningOAXSeward3 hr
Jun 14, 3:33 AM CDTSevere Thunderstorm WarningLSXMonroe32 min
Jun 14, 4:46 AM CDTSevere Thunderstorm WarningLSXAudrain, Boone, Callaway49 min

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 6.3 hours before the alert went out and 101 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-pSkew-T log-p diagram, Omaha, NE at 00:00Z on 1998-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 382 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 1998-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
382 J/kg
Mixed-layer CIN
-388 J/kg
Mixed-layer LCL
1731 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

688 
WWUS9 KMKC 140551
SEL3  
MKC WW 140551
NEZ000-IAZ000-KSZ000-MOZ000-141200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 573
STORM PREDICTION CENTER NORMAN OK
1251 AM CDT SUN JUN 14 1998

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   SOUTHEAST NEBRASKA                           
   SOUTHERN IOWA                               
   NORTHEAST KANSAS                             
   NORTHERN MISSOURI                           

EFFECTIVE THIS SUNDAY MORNING FROM 115 AM UNTIL 700 AM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 85 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 15 MILES NORTH NORTHWEST OF HASTINGS NEBRASKA
TO 60 MILES EAST SOUTHEAST OF KIRKSVILLE 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 571.  WATCH NUMBER 571 WILL NOT BE IN EFFECT AFTER 115 AM
CDT.  CONTINUE...WW 572...

DISCUSSION...GOOD POTENTIAL FOR BOWS/DERECHOES WITH LARGE
HAIL/DAMAGING WINDS AND ISOLATED TORNADOES THIS MORNING ACROSS
WATCH AREA.  SHEAR EXPECTED TO REMAIN MORE THAN SUFFICIENT FOR
SUPERCELLS /50 KT SLY 850 MB FLOW VEERING TO 60 KT WSW FLOW AT 500
MB/...AND INSTABILITY/LARGE SCALE LIFT SUPPORTIVE OF ADDITIONAL
STORM DEVELOPMENT.  

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 75 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 520. 
MEAN STORM MOTION VECTOR 27535.

...CORFIDI

414,0983 403,0913 385,0913 395,0983

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 13, 8:05 PM CDTTornado WatchSPCAdair, Adams, Cass, Fremont, Mills, Montgomery and 5 more6 hr
Jun 14, 2:00 PM CDTTornado WatchSPCBenton, Cedar, Clinton, Davis, Des Moines, Henry and 21 more6 hr
Jun 13, 9:30 PM CDTTornado WatchSPCChautauqua, Cherokee, Labette, Montgomery6 hr
Jun 14, 2:30 AM CDTSevere Thunderstorm WatchSPCButler, Dunklin, Mississippi, New Madrid, Pemiscot, Ripley and 1 more7 hr
Jun 14, 6:45 AM CDTSevere Thunderstorm WatchSPCBollinger, Cape Girardeau, Crawford, Dent, Franklin, Iron and 14 more6 hr
Jun 14, 3:00 PM CDTTornado WatchSPCBollinger, Butler, Cape Girardeau, Iron, Jefferson, Lincoln and 15 more7 hr
Jun 14, 4:00 PM CDTTornado WatchSPCDunklin, New Madrid, Pemiscot6 hr

Nearby

Tornado Watches in Missouri, 1998Tornado Watches in Nebraska, 1998Tornado Watches in Iowa, 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.