Alert archive / Missouri / Flash Flood Watches in 2015
Flash Flood Watch 13, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood watch at Jul 25, 2015, 4:09 PM CDT for Adams County, Brown County, Pike County, Illinois; 14 counties in Missouri. It took effect at Jul 25, 2015, 10:00 PM CDT. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Jul 25, 2015, 4:09 PM CDT (21:09 UTC)
- In effect from
- Jul 25, 2015, 10:00 PM CDT
- Expired
- Jul 26, 2015, 12:00 PM CDT
- In force
- 14 hr
- Issued by
- NWS St. Louis, MO
- Flood severity
- None
Counties Adams County, IL, Brown County, IL, Pike County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, Cole County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Pike County, MO, Ralls County, MO, Shelby County, MO
The radar
The St Louis radar (KLSX), 116 km from the middle of the area, began a volume at 21:07 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
Davenport, (KDVN), launched 12:00Z, 9.2 hours before the alert went out and 265 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
- 1335 J/kg
- Mixed-layer CIN
- -101 J/kg
- Mixed-layer LCL
- 833 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.4
The text
As transmitted, in the capitals the NWS used until 2016.
810 WGUS63 KLSX 252109 FFALSX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE ST LOUIS MO 409 PM CDT SAT JUL 25 2015 ILZ095>097-MOZ018-019-026-027-034>036-041-042-050>052-260915- /O.NEW.KLSX.FF.A.0013.150726T0300Z-150726T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ ADAMS IL-BROWN IL-PIKE IL-KNOX MO-LEWIS MO-SHELBY MO-MARION MO- MONROE MO-RALLS MO-PIKE MO-BOONE MO-AUDRAIN MO-CALLAWAY MO- MONTGOMERY MO-LINCOLN MO- INCLUDING THE CITIES OF...QUINCY...HANNIBAL...BOWLING GREEN... COLUMBIA...MEXICO 409 PM CDT SAT JUL 25 2015 ...FLASH FLOOD WATCH IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH SUNDAY MORNING... THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF WEST CENTRAL ILLINOIS AND MISSOURI...INCLUDING THE FOLLOWING COUNTIES...IN WEST CENTRAL ILLINOIS...ADAMS IL...BROWN IL AND PIKE IL. IN MISSOURI... AUDRAIN MO...BOONE MO...CALLAWAY MO...KNOX MO...LEWIS MO... LINCOLN MO...MARION MO...MONROE MO...MONTGOMERY MO...PIKE MO... RALLS MO AND SHELBY MO. * FROM 10 PM CDT THIS EVENING THROUGH SUNDAY MORNING * THUNDERSTORMS ARE EXPECTED TO MOVE ACROSS THE AREA TONIGHT. THESE STORMS WILL BE CAPABLE OF PRODUCING VERY HEAVY RAINFALL IN A SHORT PERIOD OF TIME WHICH COULD LEAD TO FLASH FLOODING. * HEAVY RAINFALL WILL RESULT IN FLOODING OF LOW LYING OR POOR DRAINAGE AREAS...AND ULTIMATELY DANGEROUS FLASH FLOODING ON SMALLER CREEKS AND STREAMS. SIGNIFICANT RISES ON LARGER STREAMS AND RIVERS WILL ALSO BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT FLASH FLOODING IS POSSIBLE BUT NOT IMMINENT IN THE WATCH AREA. PEOPLE IN THE WATCH AREA SHOULD BE AWARE OF THE POSSIBILITY OF HEAVY RAINFALL AND FLASH FLOODING. CHECK YOUR PREPAREDNESS REQUIREMENTS...ESPECIALLY IF YOU LIVE IN FLOOD PRONE AREAS. STAY INFORMED...AND BE READY FOR QUICK ACTION IF FLOODING IS OBSERVED OR IF A FLASH FLOOD WARNING IS ISSUED. && $$ BRITT
2 follow-up statements
243 WGUS63 KLSX 260921 FFALSX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE ST LOUIS MO 421 AM CDT SUN JUL 26 2015 MOZ047-048-261700- /O.EXB.KLSX.FF.A.0013.000000T0000Z-150726T1700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MONITEAU MO-COLE MO- INCLUDING THE CITY OF...JEFFERSON CITY 421 AM CDT SUN JUL 26 2015 ...FLASH FLOOD WATCH IN EFFECT UNTIL NOON CDT TODAY... THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS EXPANDED THE * FLASH FLOOD WATCH TO INCLUDE A PORTION OF CENTRAL MISSOURI... INCLUDING THE FOLLOWING COUNTIES...COLE MO AND MONITEAU MO. * UNTIL NOON CDT TODAY * SCATTERED THUNDERSTORMS WILL BRING ANOTHER THREAT OF HEAVY RAIN TO PARTS OF THE AREA DURING THE MORNING HOURS. THIS RAIN... COMBINED WITH THE HEAVY RAIN OF EARLY TODAY...COULD LEAD TO FLASH FLOODING. * HEAVY RAINFALL WILL RESULT IN FLOODING OF LOW LYING OR POOR DRAINAGE AREAS...AND ULTIMATELY DANGEROUS FLASH FLOODING ON SMALLER CREEKS AND STREAMS. SIGNIFICANT RISES ON LARGER STREAMS AND RIVERS WILL ALSO BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT FLASH FLOODING IS POSSIBLE BUT NOT IMMINENT IN THE WATCH AREA. PEOPLE IN THE WATCH AREA SHOULD BE AWARE OF THE POSSIBILITY OF HEAVY RAINFALL AND FLASH FLOODING. CHECK YOUR PREPAREDNESS REQUIREMENTS...ESPECIALLY IF YOU LIVE IN FLOOD PRONE AREAS. STAY INFORMED...AND BE READY FOR QUICK ACTION IF FLOODING IS OBSERVED OR IF A FLASH FLOOD WARNING IS ISSUED. && $$ ILZ095>097-MOZ018-019-026-027-034>036-041-042-050>052-261700- /O.EXT.KLSX.FF.A.0013.000000T0000Z-150726T1700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ ADAMS IL-BROWN IL-PIKE IL-KNOX MO-LEWIS MO-SHELBY MO-MARION MO- MONROE MO-RALLS MO-PIKE MO-BOONE MO-AUDRAIN MO-CALLAWAY MO- MONTGOMERY MO-LINCOLN MO- INCLUDING THE CITIES OF...QUINCY...HANNIBAL...BOWLING GREEN... COLUMBIA...MEXICO 421 AM CDT SUN JUL 26 2015 ...FLASH FLOOD WATCH NOW IN EFFECT UNTIL NOON CDT TODAY... THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR * PORTIONS OF WEST CENTRAL ILLINOIS AND MISSOURI...INCLUDING THE FOLLOWING COUNTIES...IN WEST CENTRAL ILLINOIS...ADAMS IL... BROWN IL AND PIKE IL. IN MISSOURI...AUDRAIN MO...BOONE MO... CALLAWAY MO...KNOX MO...LEWIS MO...LINCOLN MO...MARION MO... MONROE MO...MONTGOMERY MO...PIKE MO...RALLS MO AND SHELBY MO. * UNTIL NOON CDT TODAY * SCATTERED THUNDERSTORMS WILL BRING ANOTHER THREAT OF HEAVY RAIN TO THE AREA THIS MORNING. THESE DOWNPOURS...COMBINED WITH THE HEAVY RAIN THAT OCCURRED DURING THE PREDAWN HOURS....COULD LEAD TO FLASH FLOODING IN SOME AREAS. * HEAVY RAINFALL WILL RESULT IN FLOODING OF LOW LYING OR POOR DRAINAGE AREAS...AND ULTIMATELY DANGEROUS FLASH FLOODING ON SMALLER CREEKS AND STREAMS. SIGNIFICANT RISES ON LARGER STREAMS AND RIVERS WILL ALSO BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT FLASH FLOODING IS POSSIBLE BUT NOT IMMINENT IN THE WATCH AREA. PEOPLE IN THE WATCH AREA SHOULD BE AWARE OF THE POSSIBILITY OF HEAVY RAINFALL AND FLASH FLOODING. CHECK YOUR PREPAREDNESS REQUIREMENTS...ESPECIALLY IF YOU LIVE IN FLOOD PRONE AREAS. STAY INFORMED...AND BE READY FOR QUICK ACTION IF FLOODING IS OBSERVED OR IF A FLASH FLOOD WARNING IS ISSUED. && $$ TRUETT
476 WGUS63 KLSX 261648 FFALSX FLOOD WATCH NATIONAL WEATHER SERVICE ST LOUIS MO 1148 AM CDT SUN JUL 26 2015 ILZ095>097-MOZ018-019-026-027-034>036-041-042-047-048-050>052- 261800- /O.EXP.KLSX.FF.A.0013.000000T0000Z-150726T1700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ ADAMS IL-BROWN IL-PIKE IL-KNOX MO-LEWIS MO-SHELBY MO-MARION MO- MONROE MO-RALLS MO-PIKE MO-BOONE MO-AUDRAIN MO-MONITEAU MO- COLE MO-CALLAWAY MO-MONTGOMERY MO-LINCOLN MO- INCLUDING THE CITIES OF...QUINCY...HANNIBAL...BOWLING GREEN... COLUMBIA...MEXICO...JEFFERSON CITY 1148 AM CDT SUN JUL 26 2015 ...FLASH FLOOD WATCH WILL EXPIRE AT NOON CDT TODAY... THE FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL AND NORTHEAST MISSOURI AS WELL AS WEST CENTRAL ILLINOIS WILL EXPIRE AT NOON CDT TODAY. THE STORMS WITH HEAVY RAIN HAVE WEAKENED AND MOVED TO THE EAST OF THE AREA. $$ BYRD
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 2:16 AM CDT | Special Weather Statement | LSX | Audrain, Boone, Monroe, Shelby | 44 min |
| Jul 25, 4:31 AM CDT | Flash Flood Warning | LSX | Moniteau | 6 hr |
| Jul 25, 4:05 PM CDT | Heat Advisory | LSX | Boone, Callaway, Cole, Moniteau, Osage | 48 hr |
Nearby
Flash Flood Watches in Missouri, 2015Flash Flood Watches in Illinois, 2015Every flash flood watch in 2015
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.