Alert archive / Missouri / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 42, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Apr 23, 2010, 6:58 PM CDT for Macon County, Randolph County, Missouri. It was in force for 32 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 23, 2010, 6:58 PM CDT (23:58 UTC)
- Expired
- Apr 23, 2010, 7:30 PM CDT
- In force
- 32 min
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Macon County, MO, Randolph County, MO
The radar
The Pleasant Hill radar (KEAX), 175 km from the middle of the area, began a volume at 00:00 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 12.0 hours before the alert went out and 324 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
- 144 J/kg
- Mixed-layer CIN
- -173 J/kg
- Mixed-layer LCL
- 855 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 23, 6:25 PM CDT, 33 minutes earlier.
Area forecast discussion, Apr 23, 6:25 PM CDT, 33 minutes before
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</html>Hazardous weather outlook, Apr 23, 12:57 PM CDT, 6 hours 1 minute before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 1257 PM CDT FRI APR 23 2010 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-241800- ATCHISON KS-MIAMI-LINN KS-DONIPHAN-LEAVENWORTH-WYANDOTTE- JOHNSON KS-ATCHISON MO-NODAWAY-WORTH-GENTRY-HARRISON-MERCER- PUTNAM-SCHUYLER-HOLT-ANDREW-DE KALB-DAVIESS-GRUNDY-SULLIVAN-ADAIR- BUCHANAN-CLINTON-CALDWELL-LIVINGSTON-LINN MO-MACON-PLATTE-CLAY- RAY-CARROLL-CHARITON-RANDOLPH-JACKSON-LAFAYETTE-SALINE-HOWARD- CASS-JOHNSON MO-PETTIS-COOPER-BATES-HENRY- 1257 PM CDT FRI APR 23 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT A COMPLEX AND POWERFUL STORM SYSTEM WILL CONTINUE TO PUSH TOWARDS THE LOWER MISSOURI RIVER VALLEY REGION THIS AFTERNOON AND EVENING. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP BY MIDDLE TO LATE AFTERNOON ALONG A DRY LINE SITUATED IN EAST CENTRAL KANSAS...WITH THUNDERSTORMS LIKELY FIRST DEVELOPING IN A VERY WARM MOIST CORRIDOR ALONG THE KANSAS/NEBRASKA BORDER AND SPREADING SOUTH ALONG THE DRY LINE THROUGH EASTERN KANSAS. THESE STORMS WILL BEGIN TO RAPIDLY LIFT NORTHWARD TOWARDS A SURFACE WARM FRONT ALONG SOUTHEAST NEBRASKA...NORTHERN MISSOURI AND SOUTHERN IOWA...WITH STORMS LIKELY IMPACTING NORTHEAST KANSAS AND NORTHWEST MISSOURI BY LATE AFTERNOON BUT MORE LIKELY IN THE EVENING. ADDITIONAL THUNDERSTORMS MAY LIFT NORTHEAST OUT OF ARKANSAS AND SOUTHERN MISSOURI IMPACTING EASTERN PORTIONS OF THE OUTLOOK AREA BY LATE AFTERNOON. GIVEN STRONG INSTABILITY AND SHEAR IN THE ATMOSPHERE...ANY STORM WHICH DEVELOPS WILL HAVE THE POTENTIAL TO LARGE HAIL...DAMAGING WINDS AND LOCALIZED FLOODING...BUT MAY ALSO BE CAPABLE OF PRODUCING ISOLATED TORNADOES. WHILE STILL LOW...THE HIGHEST PROBABILITY FOR TORNADIC ACTIVITY WILL BE IN AREAS FROM KANSAS CITY...TO TOPEKA AND NORTHWEST TO ST. JOSEPH...TARKIO AND ALBANY. THE THUNDERSTORMS WILL CONTINUE TO PROGRESS EASTWARD THROUGH THE REST OF THE OUTLOOK AREA DURING THE NIGHT. HOWEVER...THE SEVERE THREAT WILL GRADUALLY DIMINISH BY LATE EVENING AS THE STORMS APPROACH A KIRKSVILLE TO MOBERLY LINE SHORTLY AFTER MIDNIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THE UPPER LOW RESPONSIBLE FOR TODAY'S THUNDERSTORMS WILL PASS OVERHEAD THE OUTLOOK AREA ON SATURDAY. AT THIS TIME...IT DOES APPEAR THAT SUFFICIENT INSTABILITY AND LITTLE INHIBITION WILL LEAD TO THE DEVELOPMENT OF THUNDERSTORMS AS EARLY AS NOON ON SATURDAY. PRIMARY THREATS WILL BE LARGE HAIL AND LOCALLY HEAVY RAINFALL. WHILE PROBABILITIES REMAIN VERY LOW...AN ISOLATED TORNADO MAY ALSO BE POSSIBLE NEAR EXISTING BOUNDARIES. THE THREAT OF THUNDERSTORMS SHOULD DIMINISH BY SUNSET. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE LIKELY ACROSS EASTERN KANSAS...WESTERN MISSOURI BY LATE AFTERNOON...AND FURTHER EAST INTO MISSOURI IN THE EVENING. SPOTTER ACTIVATION WILL ALSO BE LIKELY ON SATURDAY. DUX
In the hours before
Special weather statement, Apr 23, 6:48 PM CDT, 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 648 PM CDT FRI APR 23 2010 MOZ039-045-240030- PETTIS MO-SALINE MO- 648 PM CDT FRI APR 23 2010 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN SALINE AND NORTHERN PETTIS COUNTIES UNTIL 730 PM CDT... AT 644 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR HOUSTONIA...OR 9 MILES SOUTHEAST OF SWEET SPRINGS...MOVING NORTHEAST AT 45 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... MARSHALL... SLATER... GILLIAM... THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. CDB
Local storm report, Apr 23, 6:49 PM CDT, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
649 PM CDT FRI APR 23 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0642 PM HAIL MOBERLY 39.42N 92.44W
04/23/2010 M0.75 INCH RANDOLPH MO TRAINED SPOTTER
DIME SIZE HAIL FELL..WINDS APROX 35-40 MPH. STORM HAS
DIED DOWN SINCE HAIL FELL.
&&
KBRONISThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 8:19 PM CDT | River Flood Warning | EAX | Bates | 4 days |
| Apr 22, 8:34 PM CDT | River Flood Warning | EAX | Cass, Henry, Johnson | 3 days |
| Apr 22, 8:34 PM CDT | River Flood Warning | EAX | Bates, Cass, Henry | 3 days |
| Apr 22, 10:01 PM CDT | Flood Watch | EAX | Bates, Cass, Henry, Jackson, Johnson, Lafayette | 15 hr |
| Apr 23, 3:35 AM CDT | River Flood Warning | EAX | Johnson, Pettis | 3 days |
| Apr 23, 4:20 AM CDT | Areal Flood Advisory | EAX | Bates, Cass, Henry, Johnson | 3 hr |
| Apr 23, 6:28 AM CDT | Flash Flood Warning | EAX | Bates, Cass, Henry, Jackson, Johnson, Lafayette and 2 more | 6 hr |
| Apr 23, 10:09 AM CDT | River Flood Warning | EAX | Cooper, Saline | 7 days |
| Apr 22, 8:19 PM CDT | River Flood Warning | EAX | Miami | 4 days |
| Apr 22, 8:19 PM CDT | River Flood Warning | EAX | Linn | 5 days |
Nearby
Severe Thunderstorm Warnings in Missouri, 2010Every severe thunderstorm warning in 2010
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; radar from the NEXRAD Level II archive.