Alert archive / Missouri / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 270, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Aug 29, 2001, 7:47 PM CDT for Jackson County, Missouri. It was in force for 58 min. 3 reports 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
- Aug 29, 2001, 7:47 PM CDT (00:47 UTC)
- Expired
- Aug 29, 2001, 8:45 PM CDT
- In force
- 58 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Jackson County, MO
The radar
The Pleasant Hill radar (KEAX), 21 km from the middle of the area, began a volume at 00:38 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 |
|---|---|---|---|
| Aug 29, 7:55 PM CDT | Thunderstorm Wind 57 E | Lake Lotawana, MO | |
| Aug 29, 7:55 PM CDT | Thunderstorm Wind 57 E | Lees Summit, MO | |
| Aug 29, 8:05 PM CDT | Thunderstorm Wind 57 E | Grain Vly, MO |
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, 0.8 hours before the alert went out and 107 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
- 1904 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 1877 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
732 WUUS53 KEAX 300048 SVRMCI MOC095-300145- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE KANSAS CITY-PLEASANT HILL MO 747 PM CDT WED AUG 29 2001 THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... JACKSON COUNTY IN WEST CENTRAL MISSOURI THIS INCLUDES THE CITY OF KANSAS CITY * UNTIL 845 PM CDT * AT 747 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER LAKE LOTAWANA...OR ABOUT 15 MILES NORTH OF HARRISONVILLE...MOVING NORTH AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LEES SUMMIT AT 755 PM CDT LAKE LOTAWANA AT 805 PM CDT GRAIN VALLEY AT 840 PM CDT BUCKNER AT 845 PM CDT THIS SEVERE THUNDERSTORM WILL LIKELY PRODUCE DIME SIZE HAIL...AND WINDS IN EXCESS OF 60 MPH. FOR YOUR SAFETY...MOVE INDOORS AND STAY AWAY FROM WINDOWS. REMEMBER...LIGHTNING IS A THREAT FROM ALL THUNDERSTORMS. HEAVY RAINS CAN CAUSE LOCALIZED FLOODING OF LOW LYING AREAS. LAT...LON 3886 9459 3885 9414 3915 9413 3912 9458 $$ PC
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 29, 2:30 PM CDT, 5 hours 17 minutes earlier.
Area forecast discussion, Aug 29, 2:30 PM CDT, 5 hours 17 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 230 PM CDT WED AUG 29 2001 MAIN FOCUS FOR THIS FORECAST IS ON PRECIP CHANCES THURSDAY AND FRIDAY...AND TEMPS OVER THE WEEKEND. LATEST VISIBLE IMAGERY SHOWS CUMULUS BUBBLING ON SOUTHERN EDGE OF THE FORECAST AREA THIS AFTERNOON...WITH STORMS POPPING TO THE SOUTHEAST IN EASTERN SECTIONS OF THE SGF CWA. COLD FRONT REMAINS WELL TO THE NORTH...EXTENDING FROM WEST CENTRAL MN TO NORTHEAST CO. IN THE IMMEDIATE SHORT TERM...LEANING TOWARD NO POPS IN THE ZONES TONIGHT...BUT WILL MAKE LAST MINUTE CALL ON THE SOUTHEAST ZONES...AND WATCH FOR STORM DEVELOPMENT/MOVEMENT FROM ROLLA/LEBANON AREA. BASED ON CURRENT DEWPOINT TRENDS...AND FRONT REMAINING NORTH OF THE REGION...STILL LOOKS LIKE UPPER 60S TO AROUND 70 LOOK GOOD FOR MINS TONIGHT. SURFACE FRONT STILL PROGGED TO MOVE THROUGH THE FORECAST AREA THURSDAY EVENING AND FRIDAY MORNING AS UPPER TROUGH SHIFTS INTO GREAT LAKES REGION. NO HUGE DIFFERENCES SHOWING UP BETWEEN BASIC MODEL FIELDS TODAY. WILL LEAN TOWARD THE AVN...WHICH HAS SLIGHTLY FASTER MOVEMENT WITH THE FRONT...AND SEEMS TO BE DOING A BETTER JOB WITH MOISTURE RETURN/QPF OUTPUT...AS IT PICKED UP ON PRECIP THIS AFTERNOON TO THE SOUTH. EVEN WITH FASTER MOVEMENT OF FRONT...WILL LAG POPS UNTIL THURSDAY AFTERNOON FOR THE SOUTHERN ZONES...WITH LACK ON DECENT FORCING. OTHERWISE...CHANCE POPS OVER THE ENTIRE AREA FOR THURSDAY NIGHT STILL LOOK GOOD. ALSO...WILL TRIM POPS FROM THE NORTHERN ZONES FOR FRIDAY...AND CONTINUE TREND OF TAPERING POPS ELSEWHERE ON FRIDAY. LATEST MRF/ECMWF INDICATES JUST A BRIEF SHOT OF COOLER AIR THROUGH THE WEEKEND BEFORE TEMPERATURES REBOUND SOME EARLY NEXT WEEK AS WESTERLIES SHIFT BACK TO THE NORTH. MAV TEMPS LOOK TOO LOW SO WILL TREND MORE TOWARD FWC NUMBERS FOR EARLY PERIODS. THANKS FOR COORDINATION SGF... .EAX... KS...NONE. MO...NONE. MMT/PC
In the hours before
Local storm report, Aug 29, 5:49 PM CDT, 1 hour 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
549 PM CDT WED AUG 29 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0650 PM DRESDEN MO .75 INCH HAIL
08/29/01 PETTIS REPORTED BY EMERGENCY
MANAGEMENT.
0650 PM LA MONTE MO .75 INCH HAIL
08/29/01 PETTIS REPORTED BY EMERGENCY
MANAGEMENT.
0700 PM 5 N SEDALIA MO WIND DAMAGE
08/29/01 PETTIS 3 TO 4 EIGHT INCH
DIAMETER TREES DOWNED.
REPORTED BY EMERGENCY
MANAGEMENT.
0730 PM 4 N ARCHIE MO .75 INCH HAIL
08/29/01 CASS REPORTED BY OFF-DUTY
NWS EMPLOYEE.
0736 PM 1 W HARRISONVILLE MO 1 INCH HAIL
08/29/01 CASS REPORTED BY PUBLIC.
0740 PM LIBERTY MO 65 MPH TSTM GUST
08/29/01 CLAY REPORTED BY STORM
SPOTTER.
0755 PM LAKE LOTAWANA MO WIND DAMAGE
08/29/01 JACKSON REPORTED BY LAW
ENFORCEMENT OFFICIAL.
0755 PM LEES SUMMIT MO WIND DAMAGE
08/29/01 JACKSON REPORTED BY LAW
ENFORCEMENT OFFICIAL.
0805 PM GRAIN VLY MO WIND DAMAGE
08/29/01 JACKSON REPORTED BY LAW
ENFORCEMENT OFFICIAL.
0855 PM EXCELSIOR SPGS MO WIND DAMAGE
08/29/01 CLAY TREE DOWN THROUGH ROOF
OF HOUSE. REPORTED BY
LAW ENFORCEMENT OFFICIAL.The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 7:23 PM CDT | Severe Thunderstorm Warning | EAX | Cass | 67 min |
| Aug 29, 8:40 PM CDT | Severe Thunderstorm Warning | EAX | Clay | 50 min |
| Aug 30, 1:54 PM CDT | Severe Thunderstorm Warning | EAX | Platte | 51 min |
| Aug 30, 2:03 PM CDT | Severe Thunderstorm Warning | EAX | DeKalb | 27 min |
| Aug 30, 2:33 PM CDT | Severe Thunderstorm Warning | EAX | Clinton | 42 min |
| Aug 30, 3:03 PM CDT | Severe Thunderstorm Warning | EAX | Jackson | 42 min |
| Aug 30, 4:16 PM CDT | Severe Thunderstorm Warning | EAX | Ray | 44 min |
| Aug 30, 5:16 PM CDT | Severe Thunderstorm Warning | EAX | Chariton | 44 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2001Every severe thunderstorm warning in 2001
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.