Alert archive / Missouri / Special Weather Statements in 2012
Special Weather Statement, NWS Kansas City, MO
NWS Kansas City, MO issued this special weather statement at May 4, 2012, 6:25 AM CDT for Lafayette County, Missouri. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 4, 2012, 6:25 AM CDT (11:25 UTC)
- Expired
- May 4, 2012, 7:00 AM CDT
- In force
- 35 min
- Issued by
- NWS Kansas City, MO
County Lafayette County, MO
The radar
The Pleasant Hill radar (KEAX), 50 km from the middle of the area, began a volume at 11:28 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
Topeka, KS (KTOP), launched 00:00Z, 11.4 hours before the alert went out and 164 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
- 3511 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1105 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 2.0
- Supercell composite
- 14.3
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at May 4, 4:07 AM CDT, 2 hours 18 minutes earlier.
Area forecast discussion, May 4, 4:07 AM CDT, 2 hours 18 minutes before
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</html>Hazardous weather outlook, May 4, 5:16 AM CDT, 1 hour 9 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 516 AM CDT FRI MAY 4 2012 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-051030- 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- 516 AM CDT FRI MAY 4 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL LINGER ACROSS NORTHERN AND NORTHEASTERN MISSOURI THROUGH ABOUT MID-MORNING. A FEW OF THE STRONGER STORMS MAY BE CAPABLE OF PRODUCING SMALL HAIL. THERE IS A CHANCE FOR SEVERE THUNDERSTORMS TO DEVELOP ACROSS EXTREME NORTHERN MISSOURI THIS EVENING AND INTO THE OVERNIGHT HOURS. LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY THREATS. UNSEASONABLY WARM AND HUMID AIR WILL OVERTAKE THE REGION TODAY WITH TEMPERATURES CLIMBING INTO THE MIDDLE TO UPPER 80S AND HEAT INDEX VALUES OF 90 TO 94 DEGREES. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY UNSEASONABLY WARM CONDITIONS WILL CONTINUE INTO SATURDAY WITH TEMPERATURES PEAKING IN THE UPPER 80S TO AROUND 90 DEGREES. HEAT INDEX VALUES OF 93 TO 97 DEGREES WILL BE POSSIBLE. AN EXTREMELY UNSTABLE AIRMASS WILL REMAIN IN PLACE ACROSS THE ENTIRE OUTLOOK REGION SUNDAY AFTERNOON AND EVENING. THIS MAY ALLOW FOR SEVERE THUNDERSTORMS TO DEVELOP BY LATE AFTERNOON. LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY THREATS WITH THESE STORMS FROM LATE SUNDAY AFTERNOON THROUGH SUNDAY EVENING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED ACROSS THE EXTREME NORTHERN MISSOURI TONIGHT. ACH
In the hours before
Special weather statement, May 4, 1:31 AM CDT, 4 hours 54 minutes before
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</html>Special weather statement, May 4, 2:31 AM CDT, 3 hours 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
231 AM CDT FRI MAY 4 2012
MOZ002-040815-
NODAWAY MO-
231 AM CDT FRI MAY 4 2012
...SIGNIFICANT WEATHER ADVISORY FOR NODAWAY COUNTY UNTIL 315 AM
CDT...
AT 227 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR MARYVILLE...MOVING NORTHEAST AT 15 MPH.
HAIL UP TO THE SIZE OF PENNIES IS EXPECTED WITH THIS STORM...ALONG
WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING.
LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
MARYVILLE...RAVENWOOD AND PICKERING.
TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.
LAT...LON 4048 9463 4030 9462 4024 9494 4039 9507
4058 9473 4058 9468
TIME...MOT...LOC 0731Z 236DEG 15KT 4036 9490
MJMSpecial weather statement, May 4, 3:20 AM CDT, 3 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
320 AM CDT FRI MAY 4 2012
MOZ002>004-040900-
GENTRY MO-NODAWAY MO-WORTH MO-
320 AM CDT FRI MAY 4 2012
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN WORTH...CENTRAL
NODAWAY AND NORTHWESTERN GENTRY COUNTIES UNTIL 400 AM CDT...
AT 316 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES NORTH OF
MARYVILLE TO RAVENWOOD...AND MOVING EAST AT 10 MPH.
HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 45 MPH ARE
EXPECTED WITH THESE STORMS.
LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...
PICKERING AND PARNELL.
THESE STORMS MAY INTENSIFY...AND A SEVERE THUNDERSTORM WATCH IS IN
EFFECT FOR THIS AREA UNTIL 5 AM CDT. 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.
LAT...LON 4049 9457 4031 9445 4031 9468 4031 9492
4051 9500
TIME...MOT...LOC 0820Z 257DEG 7KT 4043 9490 4037 9468
HAWBLITZELSpecial weather statement, May 4, 3:50 AM CDT, 2 hours 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 350 AM CDT FRI MAY 4 2012 MOZ003>005-040930- GENTRY MO-HARRISON MO-WORTH MO- 350 AM CDT FRI MAY 4 2012 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WORTH...CENTRAL HARRISON AND NORTHEASTERN GENTRY COUNTIES UNTIL 430 AM CDT... AT 348 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6 MILES NORTHEAST OF NEW HAMPTON...OR 8 MILES NORTHWEST OF BETHANY...MOVING EAST AT 10 MPH. HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... RIDGEWAY AND EAGLEVILLE. THIS WILL IMPACT I-35 BETWEEN MILE MARKERS 93 AND 107. THIS STORM MAY INTENSIFY...AND A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THIS AREA UNTIL 5 AM CDT. 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. LAT...LON 4049 9395 4027 9389 4028 9427 4042 9432 TIME...MOT...LOC 0850Z 257DEG 7KT 4034 9413 HAWBLITZEL
Special weather statement, May 4, 5:58 AM CDT, 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
558 AM CDT FRI MAY 4 2012
KSZ103>105-MOZ028-041145-
JOHNSON KS-LEAVENWORTH KS-PLATTE MO-WYANDOTTE KS-
558 AM CDT FRI MAY 4 2012
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN JOHNSON COUNTY IN EAST
CENTRAL KANSAS...AND WYANDOTTE AND SOUTHEASTERN LEAVENWORTH COUNTIES
IN NORTHEAST KANSAS...AND SOUTHERN PLATTE COUNTY IN WEST CENTRAL
MISSOURI UNTIL 645 AM CDT...
AT 555 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR DE SOTO...MOVING NORTHEAST AT 35 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...
BONNER SPRINGS...SHAWNEE...EDWARDSVILLE...LAKE QUIVIRA...MERRIAM...
WESTWOOD...KANSAS CITY KANSAS...HOLLIDAY...PIPER...MAYWOOD...
MUNCIE...WOLCOTT...POMEROY...BEVERLY HILLS AND ROELAND PARK.
THIS WILL IMPACT THE FOLLOWING INTERSTATES...
I-70 IN KANSAS BETWEEN MILE MARKERS 410 AND 423.
I-35 IN KANSAS BETWEEN MILE MARKERS 229 AND 235.
I-635 BETWEEN MILE MARKERS 0 AND 8.
I-435 LOOP FROM MILE MARKERS 5 TO 21.
LAT...LON 3923 9471 3909 9461 3904 9461 3892 9501
3906 9509
TIME...MOT...LOC 1058Z 240DEG 33KT 3901 9493
HAWBLITZELSpecial weather statement, May 4, 6:25 AM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 625 AM CDT FRI MAY 4 2012 MOZ038-044-041200- JOHNSON MO-LAFAYETTE MO- 625 AM CDT FRI MAY 4 2012 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN LAFAYETTE AND EXTREME NORTHEASTERN JOHNSON COUNTIES IN WEST CENTRAL MISSOURI UNTIL 700 AM CDT... AT 623 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7 MILES SOUTHEAST OF ODESSA...MOVING EAST AT 20 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... CONCORDIA...MAYVIEW AND AULLVILLE. THIS WILL IMPACT I-70 BETWEEN MILE MARKERS 31 AND 61. LAT...LON 3910 9352 3891 9351 3891 9406 3902 9409 TIME...MOT...LOC 1125Z 260DEG 19KT 3894 9383 HAWBLITZEL
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 12:08 AM CDT | Special Weather Statement | EAX | Andrew | 37 min |
| May 4, 12:12 AM CDT | Special Weather Statement | EAX | Daviess | 48 min |
| May 4, 12:18 AM CDT | Severe Thunderstorm Warning | EAX | Daviess, Grundy, Livingston | 42 min |
| May 4, 12:29 AM CDT | Severe Thunderstorm Warning | EAX | Andrew, Daviess, DeKalb, Gentry, Harrison, Nodaway | 46 min |
| May 4, 12:42 AM CDT | Areal Flood Advisory | EAX | Andrew, Daviess, DeKalb, Gentry, Grundy, Harrison and 1 more | 6 hr |
| May 4, 1:28 AM CDT | Flash Flood Warning | EAX | Daviess, DeKalb, Gentry | 6 hr |
| May 4, 1:31 AM CDT | Special Weather Statement | EAX | Grundy, Sullivan | 44 min |
| May 4, 2:31 AM CDT | Special Weather Statement | EAX | Nodaway | 44 min |
| May 4, 3:12 AM CDT | Flash Flood Warning | EAX | Gentry, Nodaway, Worth | 6 hr |
| May 4, 3:20 AM CDT | Special Weather Statement | EAX | Nodaway | 40 min |
| May 4, 3:50 AM CDT | Special Weather Statement | EAX | Harrison | 40 min |
| May 4, 3:55 AM CDT | Severe Thunderstorm Warning | EAX | Harrison | 14 min |
| May 4, 4:08 AM CDT | Areal Flood Advisory | EAX | Harrison | 6 hr |
| May 4, 5:07 AM CDT | River Flood Warning | EAX | Daviess, Gentry | 26 hr |
| May 4, 7:05 AM CDT | River Flood Warning | EAX | Andrew, Nodaway | 5 hr |
| May 4, 7:28 AM CDT | River Flood Warning | EAX | Daviess, Livingston | 22 hr |
| May 4, 10:06 AM CDT | River Flood Warning | EAX | Linn, Livingston | 31 hr |
| May 4, 10:06 AM CDT | River Flood Warning | EAX | Carroll, Chariton, Linn, Livingston | 52 hr |
| May 4, 3:01 PM CDT | River Flood Warning | EAX | Buchanan | 26 hr |
| May 4, 3:01 PM CDT | River Flood Warning | EAX | Platte | 37 hr |
| May 4, 5:58 AM CDT | Special Weather Statement | EAX | Wyandotte | 47 min |
Nearby
Special Weather Statements in Missouri, 2012Every special weather statement in 2012
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.