Alert archive / Kansas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 227, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Sep 29, 1998, 12:39 AM CDT for Johnson County, Kansas. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Sep 29, 1998, 12:39 AM CDT (05:39 UTC)
- Expired
- Sep 29, 1998, 1:15 AM CDT
- In force
- 36 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Johnson County, KS
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 28, 11:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 5.7 hours before the alert went out and 67 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
- 1365 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1785 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 7.8
The text
As transmitted, in the capitals the NWS used until 2016.
784
WUUS1 KMCI 290540 RRA
SVRMCI
KSC091-290615-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY-PLEASANT HILL MO
1239 AM CDT TUE SEP 29 1998
THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
JOHNSON COUNTY IN KANSAS
* UNTIL 115 AM CDT
* AT 1239 AM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED...A
SEVERE THUNDERSTORM 5 MILES SOUTH OF OLATHE...MOVING EAST AT 20
MILES PER HOUR.
* THE SEVERE THUNDERSTORM WILL BE...
6 MILES SOUTHEAST OF OLATHE AT 1240 AM CDT
6 MILES SOUTHWEST OF STANLEY AT 1245 AM CDT
PEOPLE IN THE PATH OF THIS STORM...CAN EXPECT GOLF BALL SIZE
HAIL...AND WIND GUSTS UP TO 70 MPH. FOR YOUR SAFETY...MOVE
INDOORS...AND STAY AWAY FROM WINDOWS.
LAT...LON 3897 9502 3876 9502 3875 9464 3902 9466
JMWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Kansas City, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 28, 2:25 PM CDT, 10 hours 14 minutes earlier.
Area forecast discussion, Sep 28, 2:25 PM CDT, 10 hours 14 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 225 PM CDT MON SEP 28 1998 CHALLENGING FORECAST AGAIN TODAY AS MULTITUDE OF SUBTLE FEATURES AFFECTING WEATHER. WATER VAPOR IMAGERY SHOWS SEVERAL WEAK WAVES BEING GENERATED IN UPPER JET FIELD. PROFILER DATA SHOWS BETTER LOW LEVEL JET SET UP NORTH OF AREA FROM EASTERN NEBRASKA INTO SOUTHWEST MINNESOTA. WEAK SURFACE FRONT IN DAKOTAS AND WESTERN NEBRASKA IS EXPECTED TO MOVE INTO SOUTHEAST NEBRASKA AND IOWA TONIGHT. ETA AND NGM BRINGS THIS NORTHERN SURFACE FRONT INTO NORTHWEST MISSOURI OVERNIGHT. CONVERGENCE ALONG IT REMAINS WEAK...SO WILL NEED TO LOOK ALOFT FOR CLUES AS TO WHERE CONVECTION MIGHT INITIATE TONIGHT. MOISTURE AVAILABILITY WILL NOT BE A PROBLEM WITH LOW 70S DEWPOINTS STREAMING INTO EASTERN KANSAS AT THIS TIME. PLENTY OF MOISTURE ALSO SHOWING UP AT 850 MB. WAVE AT 850 MB TO BE BRUSHING NORTHERN MISSOURI OVERNIGHT SO THINK NORTHERN PART OF FORECAST AREA WILL HAVE A CHANCE OF PRECIPITATION TONIGHT. FOR TUESDAY...BETTER DYNAMICS DEVELOPING AS A STRONGER SHORT WAVE EJECTS OUT OF WESTERN U.S. AND JET STREAK DEVELOPS OVER NORTHERN PLAINS. SURFACE BOUNDARY AND 850 BOUNDARIES SET UP ACROSS FORECAST AREA TO PROVIDE A BETTER FOCUS AND STILL PLENTY OF MOISTURE IN PLACE. DEVELOPMENT SHOULD FIRST TAKE PLACE IN THE PLAINS THEN ROLL SOUTHEAST OVERNIGHT...SO MAY BE A FAIRLY LATE NIGHT EVENT. NO SUBSTANTIAL COOL DOWN EXPECTED UNTILx LATER IN WEAK AS CANADIAN AIR STAYS BOTTLED UP IN NORTHERN PLAINS. GUIDANCE TEMPS REFLECT THIS AND WILL BE FOLLOWED. .EAX... KS...NONE MO...NONE PC
In the hours before
Local storm report, Sep 28, 11:31 PM CDT, 1 hour 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1131 PM CDT MON SEP 28 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0942 PM 2 WSW TONGANOXIE KS 1.75 INCH HAIL
09/28/98 LEAVENWORTH GOLFBALL SIZE HAIL
REPORTED 2 1/2 MILES
WSW OF TONGANOXIE.
0946 PM TONGANOXIE KS .75 INCH HAIL
09/28/98 LEAVENWORTH
0958 PM BASEHOR KS 1.75 INCH HAIL
09/28/98 LEAVENWORTH GOLFBALL SIZE HAIL
REPORTED NEAR BASEHOR
1018 PM KANSAS CITY KS 1 INCH HAIL
09/28/98 WYANDOTTE 3/4 TO 1 INCH HAIL
REPORTED AT 67TH AND
LEAVENWORTH.
1020 PM PARKVILLE MO .75 INCH HAIL
09/28/98 PLATTE
1020 PM WEATHERBY LAKE MO .75 INCH HAIL
09/28/98 PLATTE
1041 PM NASHUA MO 1.75 INCH HAIL
09/28/98 CLAY GOLFBALL SIZE HAIL
REPORTED AT THE
INTERSECTION HIGHWAY
291 AND 169.
1049 PM GLADSTONE MO .75 INCH HAIL
09/28/98 CLAY
1053 PM LIBERTY MO 1.75 INCH HAIL
09/28/98 CLAY
1108 PM 5 W PAOLA KS .75 INCH HAIL
09/28/98 MIAMI
1115 PM EXCELSIOR SPGS MO 2 INCH HAIL
09/28/98 CLAY
1120 PM 4 E PAOLA KS WIND DAMAGE
09/28/98 MIAMI TREES DOWNLocal storm report, Sep 28, 11:31 PM CDT, 1 hour 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1131 PM CDT MON SEP 28 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0942 PM 2 WSW TONGANOXIE KS 1.75 INCH HAIL
09/28/98 LEAVENWORTH GOLFBALL SIZE HAIL
REPORTED 2 1/2 MILES
WSW OF TONGANOXIE.
0946 PM TONGANOXIE KS .75 INCH HAIL
09/28/98 LEAVENWORTH
0958 PM BASEHOR KS 1.75 INCH HAIL
09/28/98 LEAVENWORTH GOLFBALL SIZE HAIL
REPORTED NEAR BASEHOR
1018 PM KANSAS CITY KS 1 INCH HAIL
09/28/98 WYANDOTTE 3/4 TO 1 INCH HAIL
REPORTED AT 67TH AND
LEAVENWORTH.
1020 PM PARKVILLE MO .75 INCH HAIL
09/28/98 PLATTE
1020 PM WEATHERBY LAKE MO .75 INCH HAIL
09/28/98 PLATTE
1041 PM NASHUA MO 1.75 INCH HAIL
09/28/98 CLAY GOLFBALL SIZE HAIL
REPORTED AT THE
INTERSECTION HIGHWAY
291 AND 169.
1049 PM GLADSTONE MO .75 INCH HAIL
09/28/98 CLAY
1053 PM LIBERTY MO 1.75 INCH HAIL
09/28/98 CLAY
1108 PM 5 W PAOLA KS .75 INCH HAIL
09/28/98 MIAMI
1115 PM EXCELSIOR SPGS MO 2 INCH HAIL
09/28/98 CLAY
1120 PM 4 E PAOLA KS WIND DAMAGE
09/28/98 MIAMI TREES DOWNThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 9:36 PM CDT | Severe Thunderstorm Warning | EAX | Leavenworth | 39 min |
| Sep 28, 9:55 PM CDT | Severe Thunderstorm Warning | EAX | Wyandotte | 50 min |
| Sep 28, 11:10 PM CDT | Severe Thunderstorm Warning | EAX | Linn, Miami | 65 min |
| Sep 28, 11:46 PM CDT | Severe Thunderstorm Warning | EAX | Atchison | 44 min |
| Sep 29, 12:22 AM CDT | Severe Thunderstorm Warning | EAX | Leavenworth | 53 min |
| Sep 29, 1:05 AM CDT | Severe Thunderstorm Warning | EAX | Wyandotte | 40 min |
| Sep 29, 1:15 AM CDT | Severe Thunderstorm Warning | EAX | Leavenworth | 45 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 1998Every severe thunderstorm warning 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.