Alert archive / Kansas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 23, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Apr 30, 1997, 7:27 AM CDT for Atchison County, Leavenworth County, Kansas. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 30, 1997, 7:27 AM CDT (12:27 UTC)
- Expired
- Apr 30, 1997, 8:00 AM CDT
- In force
- 33 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties
Counties Atchison County, KS, Leavenworth County, KS
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 0.5 hours before the alert went out and 57 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.
437
WUUS1 KMCI 301227 RRA
SVRMCI
KSC005-103-301315-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
727 AM CDT WED APR 30 1997
* SEVERE THUNDERSTORM WARNING FOR
ATCHISON COUNTY - NORTHEAST KANSAS
LEAVENWORTH COUNTY - EAST CENTRAL KANSAS
* UNTIL 800 AM CDT
* SOME LOCATIONS AFFECTED
EASTON BY 740 AM
CUMMINGS BY 740 AM
JARBALO BY 740 AM
ATCHISON BY 750 AM
* AT 725 AM WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM 15 MILES WEST OF JARBALO NEAR PERRY LAKE MOVING
EAST-NORTHEAST AT 45 MPH. NICKEL SIZE HAIL WAS REPORTED IN
TOPEKA AT 653 AM.
PEOPLE IN THE PATH OF THIS STORM CAN EXPECT HAIL 1 INCH IN DIAMETER
OR LARGER AND WIND GUSTS TO 60 MPH.
SEVERE THUNDERSTORMS PRODUCE LARGE HAIL AND DAMAGING WINDS. FOR
YOUR SAFETY...MOVE INDOORS AND STAY AWAY FROM WINDOWS.
JULY
&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 Apr 30, 2:18 AM CDT, 5 hours 9 minutes earlier.
Area forecast discussion, Apr 30, 2:18 AM CDT, 5 hours 9 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
Special weather statement, Apr 30, 5:59 AM CDT, 1 hour 28 minutes before
KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-011200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO 600 AM CDT WED APR 30 1997 ...A SMALL CHANCE FOR SEVERE THUNDERSTORMS TODAY... FORECAST: AS ONE BATCH OF THUNDERSTORMS MOVES OUT OF NORTHEAST MISSOURI...LOOK FOR ONE MORE BATCH TO MOVE INTO EASTERN KANSAS AND WESTERN MISSOURI BY MID-MORNING. THESE WILL MOVE ACROSS THE REGION TODAY...AND THERE IS A SMALL CHANCE THAT SOME OF THE STRONGER STORMS COULD PRODUCE SEVERE WEATHER WITH HAIL AND WINDS THE MAIN THREATS. ONCE THIS BATCH PASSES THROUGH THE OUTLOOK AREA...THE THUNDERSTORM THREAT SHOULD BE OVER. DISCUSSION: AN UPPER LEVEL STORM SYSTEM OVER KANSAS WILL CROSS THE AREA TODAY AS A COLD FRONT FROM NORTH-CENTRAL MISSOURI TO SOUTH-CENTRAL KANSAS ALSO MOVES THROUGH. THE UPWARD MOTIONS IN THE ATMOSPHERE GENERATED BY BOTH THE FRONT AND UPPER SYSTEM WILL RESULT IN SHOWERS AND SCATTERED THUNDERSTORMS ACROSS MOST OF THE OUTLOOK AREA. THE BEST CHANCES FOR RAIN WILL BE OVER NORTHEAST KANSAS AND NORTHERN MISSOURI...WITH CHANCES DECREASING AS YOU MOVE SOUTHWARD. THE FRONT AND UPPER SYSTEM SHOULD BOTH PASS BY THE AREA BY LATE AFTERNOON...TAKING THE THUNDERSTORM THREAT WITH THEM. WHILE MOISTURE AND INSTABILITY ARE SOMEWHAT LIMITED...THERE IS STILL A SMALL CHANCE THAT SOME OF THE STRONGER STORMS COULD PRODUCE SEVERE WEATHER WITH HAIL AND DAMAGING WINDS TH2E PRIMARY THREATS. THIS WILL BE ESPECIALLY TRUE ALONG AND SOUTH OF THE COLD FRONT...BASICALLY SOUTH OF A ST JOSEPH TO BETHANY LINE. WELVAERT
Special weather statement, Apr 30, 6:00 AM CDT, 1 hour 27 minutes before
KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-011200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO 600 AM CDT WED APR 30 1997 ...A SMALL CHANCE FOR SEVERE THUNDERSTORMS TODAY... FORECAST: AS ONE BATCH OF THUNDERSTORMS MOVES OUT OF NORTHEAST MISSOURI...LOOK FOR ONE MORE BATCH TO MOVE INTO EASTERN KANSAS AND WESTERN MISSOURI BY MID-MORNING. THESE WILL MOVE ACROSS THE REGION TODAY...AND THERE IS A SMALL CHANCE THAT SOME OF THE STRONGER STORMS COULD PRODUCE SEVERE WEATHER WITH HAIL AND WINDS THE MAIN THREATS. ONCE THIS BATCH PASSES THROUGH THE OUTLOOK AREA...THE THUNDERSTORM THREAT SHOULD BE OVER. DISCUSSION: AN UPPER LEVEL STORM SYSTEM OVER KANSAS WILL CROSS THE AREA TODAY AS A COLD FRONT FROM NORTH-CENTRAL MISSOURI TO SOUTH-CENTRAL KANSAS ALSO MOVES THROUGH. THE UPWARD MOTIONS IN THE ATMOSPHERE GENERATED BY BOTH THE FRONT AND UPPER SYSTEM WILL RESULT IN SHOWERS AND SCATTERED THUNDERSTORMS ACROSS MOST OF THE OUTLOOK AREA. THE BEST CHANCES FOR RAIN WILL BE OVER NORTHEAST KANSAS AND NORTHERN MISSOURI...WITH CHANCES DECREASING AS YOU MOVE SOUTHWARD. THE FRONT AND UPPER SYSTEM SHOULD BOTH PASS BY THE AREA BY LATE AFTERNOON...TAKING THE THUNDERSTORM THREAT WITH THEM. WHILE MOISTURE AND INSTABILITY ARE SOMEWHAT LIMITED...THERE IS STILL A SMALL CHANCE THAT SOME OF THE STRONGER STORMS COULD PRODUCE SEVERE WEATHER WITH HAIL AND DAMAGING WINDS THE PRIMARY THREATS. THIS WILL BE ESPECIALLY TRUE ALONG AND SOUTH OF THE COLD FRONT...BASICALLY SOUTH OF A ST JOSEPH TO BETHANY LINE. WELVAERT
Local storm report, Apr 30, 6:15 AM CDT, 1 hour 12 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, 1 hour 11 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
WELVAERTThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 7:28 AM CDT | Severe Thunderstorm Warning | EAX | Atchison, Leavenworth | 32 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 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; the sounding from the Mesonet's radiosonde archive.