Alert archive / Missouri / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 27, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Apr 30, 1997, 9:58 AM CDT for Mercer County, Missouri. It was in force for 32 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
- Apr 30, 1997, 9:58 AM CDT (14:58 UTC)
- Expired
- Apr 30, 1997, 10:30 AM CDT
- In force
- 32 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties
County Mercer County, MO
The radar
The Des Moines radar (KDMX), 146 km from the middle of the area, began a volume at 15:00 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 |
|---|---|---|---|
| Apr 30, 10:10 AM CDT | Hail 1 | Princeton, MO | One inch diameter hail was reported in Princeton by the Mercer County Sheriff's office 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 12:00Z, 3.0 hours before the alert went out and 237 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 705 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMCI 301458 RRA
SVRMCI
MOC129-301530-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
CORRECTED SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
958 AM CDT WED APR 30 1997
* SEVERE THUNDERSTORM WARNING FOR
MERCER COUNTY - NORTH CENTRAL MISSOURI
* UNTIL 1030 AM CDT
* SOME LOCATIONS AFFECTED
MEDINA BY 10 AM
PRINCETON BY 1010 AM
* AT AT 952 AM WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM 3 MILES SOUTHWEST OF MEDINA MOVING NORTHEAST AT 45
MPH.
PEOPLE IN THE PATH OF THIS STORM CAN EXPECT HAIL UP TO 1 INCH IN
DIAMETER.
SEVERE THUNDERSTORMS PRODUCE LARGE HAIL AND DAMAGING WINDS. FOR
YOUR SAFETY...MOVE INDOORS AND STAY AWAY FROM WINDOWS.
CORRECTED PM TO AM IN TEXT FOR EXPIRATION TIME
MAXIMUKWhat 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 Apr 30, 2:18 AM CDT, 7 hours 40 minutes earlier.
Area forecast discussion, Apr 30, 2:18 AM CDT, 7 hours 40 minutes before
NORTHWEST MISSOURI FORECAST DISCUSSION NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO 218 AM CDT WED APR 30 1997 PCPN ON THE FOREFRONT TDY WITH TEMPS THRU PD ALSO UNDER THE MICROSCOPE. MDLS MUCH SLOWER THAN LAST NITE AT THIS TIME...AND AS SUCH SYS ONLY PROGD TO CROSS AREA TDY VICE ALREADY BEING PAST PER THE TUE 00Z RUN. MDLS AND AWIPS WV IMAGERY INDICATE TWO PIECES TO COME THRU. FIRST PIECE OVR NC KS RESULTING IN CNVCTN OVR NE KS...WITH NEGATIVELY TILTED SECOND PIECE EXPECTED TO DEEPEN AND MOVE ACRS DURG DAY TDY. ASOCD SFC LOW OVR SC KS AT 06Z WILL MOVE TWD NE MO BY 18Z. THUS...THINK PCPN A GOOD BET MOST AREAS TDY WITH BEST CHANCES OVR NRN ZONES. ERN MO LOOKS INTERESTING FOR LATER TDY. TEMPS EVEN MORE OF A CHALLENGE TDY WITH PRETTY STNG CAA. ETA MOST GUNG-HO WITH THE COOLING...TAKING THE H8 +5C LINE WELL INTO NRN MO. NGM NOT AS VIGOROUS WITH AVN IN THE MIDDLE. FEEL AVN DEPICTION BEST... AND WITH GUID NUMBERS VRY CLOSE CANT REALLY ARGUE. ACTUAL HIGH FOR THE DAY LIKELY TO OCCUR THIS MORN WITH AREA STILL IN WARM SECTOR UNTIL SYS CAN PASS. WILL WORD ZONES ACCORDINGLY WITH FALLING TEMPS...MAYBE WITH SOME RECOVERY IN WRN GRPS FOR THE AFTN ALTHO FWC DOESNT THINK SO. WINDS ALSO TO BLOW TDY AS LOW CRANKS WHILE CROSSING STATE. WILL NOT GO WITH ADVSY ATTM...BUT WILL HIT IN ZONES. CLDS TO HANG ON INTO EVE HRS...THEN LOOK FOR A CLEARING TREND. THIS IS NEXT PROBLEM AS SFC RIDGING ALSO BUILDING IN. THIS COMBO ARGUES FOR CHILLY TEMPS. FWC WAY TOO COOL YSTDY BUT LOOKS REASONABLE THIS TIME. AGAIN...GUID NUMBERS RIGHT ON TOP OF EACH OTHER AND WILL STAY CLOSE. WARMUP TO RETURN AGAIN BY THURS...WITH RAIN CHANCES BACK JUST BYND FCST PD. MCI WB 060/038 064/048 062 996-- WELVAERT
In the hours before
Local storm report, Apr 30, 6:15 AM CDT, 3 hours 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MISSOURI
615 AM CDT WED APR 30 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0225 AM OREGON MO 0.75 INCH HAIL
04/30/97 HOLT REPORTED BY SHERIFF
WELVAERTLocal storm report, Apr 30, 6:16 AM CDT, 3 hours 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MISSOURI
615 AM CDT WED APR 30 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0225 AM OREGON MO 0.75 INCH HAIL
04/30/97 HOLT REPORTED BY SHERIFF
WELVAERTLocal storm report, Apr 30, 8:44 AM CDT, 1 hour 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MISSOURI
844 AM CDT WED APR 30 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0345 AM 1 W FILLMORE MO 1 INCH HAIL
04/30/97 ANDREW CO-OP OBSERVER REPORTED
0802 AM WESTON MO .75 INCH
04/30/97 BUCHANAN RELAYED FROM TV STATION
JULYLocal storm report, Apr 30, 8:46 AM CDT, 1 hour 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MISSOURI
844 AM CDT WED APR 30 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0345 AM 1 W FILLMORE MO 1 INCH HAIL
04/30/97 ANDREW CO-OP OBSERVER REPORTED
0802 AM WESTON MO .75 INCH
04/30/97 BUCHANAN RELAYED FROM TV STATION
JULYLocal storm report, Apr 30, 8:49 AM CDT, 1 hour 9 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED WESTON REPORT
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MISSOURI
849 AM CDT WED APR 30 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0345 AM 1 W FILLMORE MO 1 INCH HAIL
04/30/97 ANDREW CO-OP OBSERVER REPORTED
0802 AM WESTON MO .75 INCH
04/30/97 PLATTE RELAYED FROM TV STATION
JULYLocal storm report, Apr 30, 8:50 AM CDT, 1 hour 8 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED WESTON REPORT
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MISSOURI
849 AM CDT WED APR 30 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0345 AM 1 W FILLMORE MO 1 INCH HAIL
04/30/97 ANDREW CO-OP OBSERVER REPORTED
0802 AM WESTON MO .75 INCH
04/30/97 PLATTE RELAYED FROM TV STATION
JULYThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 3:19 AM CDT | Severe Thunderstorm Warning | EAX | Holt | 41 min |
| Apr 30, 3:34 AM CDT | Severe Thunderstorm Warning | EAX | Andrew | 41 min |
| Apr 30, 9:37 AM CDT | Severe Thunderstorm Warning | EAX | Harrison | 23 min |
| Apr 30, 9:55 AM CDT | Severe Thunderstorm Warning | EAX | Mercer | 13 hr |
| Apr 30, 11:39 AM CDT | Severe Thunderstorm Warning | EAX | Chariton | 31 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1997Every severe thunderstorm warning in 1997
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.