Alert archive / Missouri / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 217, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Sep 1, 1998, 2:22 AM CDT for Nodaway County, Missouri. It was in force for 38 min. 1 report came from 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, with what was reported inside it.
The facts
- Issued
- Sep 1, 1998, 2:22 AM CDT (07:22 UTC)
- Expired
- Sep 1, 1998, 3:00 AM CDT
- In force
- 38 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Nodaway County, MO
The radar
The Pleasant Hill radar (KEAX), 170 km from the middle of the area, began a volume at 07:26 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 1, 2:55 AM CDT | Hail 0.75 | Barnard, MO | The Nodaway County Sheriff's Ofiice reported dime-size hail 2 miles east of Barnard. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 7.4 hours before the alert went out and 156 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
- 1954 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 2035 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 224 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 13.0
The text
As transmitted, in the capitals the NWS used until 2016.
397
WUUS1 KMCI 010725 RRA
SVRMCI
MOC147-010800-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY-PLEASANT HILL MO
222 AM CDT TUE SEP 1 1998
THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN NODAWAY COUNTY IN MISSOURI
* UNTIL 300 AM CDT
* AT 222 AM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED...
TWO SEVERE THUNDERSTORMS...ONE 5 MILES SOUTHWEST OF MARYVILLE...
AND THE OTHER NEAR CONCEPTION...MOVING SOUTHEAST AT 20 MILES PER
HOUR.
* THE SEVERE THUNDERSTORMS WILL BE...
NEAR ARKOE NOW
NEAR BARNARD AT 245 AM CDT
NEAR GUILFORD AT 250 AM CDT
PEOPLE IN THE PATH OF THIS STORM...CAN EXPECT GOLFBALL SIZE
HAIL...AND WIND GUSTS UP TO 60 MPH. FOR YOUR SAFETY...MOVE
INDOORS...AND STAY AWAY FROM WINDOWS.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...YOU SHOULD
PREPARE FOR DAMAGING WINDS...LARGE HAIL...AND DEADLY LIGHTNING.
PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...INSIDE A STRONG
BUILDING....BUT AWAY FROM WINDOWS.
LAT...LON 4037 9488 4031 9512 4014 9502 4013 9462
4029 9462
WELVAERTWhat 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 Aug 31, 3:08 PM CDT, 11 hours 14 minutes earlier.
Area forecast discussion, Aug 31, 3:08 PM CDT, 11 hours 14 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 308 PM CDT MON AUG 31 1998 NUMEROUS PROBLEMS OBTAINING DATA THIS PM BOTH ON THE LOCAL AND NATIONAL LEVEL. STLT LOOPS AS OF 1900 UTC SHW DECENT SHRT WV MVG ACR NW IA. ETA APPRS TO HAVE BEST HANDLE ON THIS FEATURE SO WILL PRETTY MUCH STAY WITH ETA TIMING. ADAP DATA STILL SHOWING DECENT PLUS 3-4 CAP OVR MOST OF FCST UND SHRT WV H7 RDG. ONLY GOT TO SEE NGM GRIDDED DATA WHICH DID NOT SUGGEST MUCH IN THE WAY OF MID/UPR LVL CAA. HOWEVER WITH ADAD DATA SHOWING BEST AXIS OF 4000-5000 J/KG CAPES AND LOWEST LI'S XTNDG FM ERN NE INTO NW MO WILL LEAVE CURRENT POP CONFIGURATION ALONE FOR TNT INTO TUE AM. HOWEVER LOCATION OF BEST FCST DYNAMICS WOULD SUGGEST GREATEST THREAT FOR TSTMS OVE NE CWA. SKEWED POPS DOWNWARD FM THIS DIRECTION. MODELS APPR CONSITANT IN BRINGING PIECE OF COOLER CANADIAN SFC HIGH INTO NRN MO. BASED ON AMS OVR NRN PLNS TRIMMED TEMPS DOWNWARD A TAD IN| LAST THREE PRDS. BASICALLY AGREE WITH COOLER FAN NUMBERS. IN XTND FCST PRD AGREE WITH NCEP FCST WHICH APPRS TO BE IN LN WITH MRF/CANADIAN SOLN OF WARMING THINGS UP AGN DY 4 AND 5. KS...NONE MO...NONE. BODNER
In the hours before
Local storm report, Sep 1, 2:04 AM CDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
204 AM CDT TUE SEP 01 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0200 AM MARYVILLE MO 1 INCH HAIL
09/01/98 NODAWAY
WELVAERTLocal storm report, Sep 1, 2:09 AM CDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
209 AM CDT TUE SEP 01 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0202 AM STANBERRY MO 1 INCH HAIL
09/01/98 GENTRY
WELVAERTThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 1:40 AM CDT | Severe Thunderstorm Warning | EAX | Gentry | 50 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.