Alert archive / Missouri / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 216, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Sep 1, 1998, 1:40 AM CDT for Gentry County, Missouri. It was in force for 50 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 1, 1998, 1:40 AM CDT (06:40 UTC)
- Expired
- Sep 1, 1998, 2:30 AM CDT
- In force
- 50 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Gentry County, MO
The radar
The Pleasant Hill radar (KEAX), 156 km from the middle of the area, began a volume at 06:41 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, 2:02 AM CDT | Hail 1 | Stanberry, MO | The Gentry County Sheriff's Office reported one inch diameter hail in Stanberry during a severe thunderstorm. |
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, 6.7 hours before the alert went out and 171 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
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What 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, 10 hours 32 minutes earlier.
Area forecast discussion, Aug 31, 3:08 PM CDT, 10 hours 32 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
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 2:22 AM CDT | Severe Thunderstorm Warning | EAX | Nodaway | 38 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.