Alert archive / Missouri / Flash Flood Watches in 2017
Flash Flood Watch 2, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood watch at May 2, 2017, 4:07 AM CDT for 23 counties in Missouri; 14 counties in Illinois. It took effect at May 3, 2017, 1:00 AM CDT. It was in force for 43 hr.
The area
The counties it named.
The facts
- Issued
- May 2, 2017, 4:07 AM CDT (09:07 UTC)
- In effect from
- May 3, 2017, 1:00 AM CDT
- Expired
- May 4, 2017, 7:40 PM CDT
- In force
- 43 hr
- Issued by
- NWS St. Louis, MO
- Flood severity
- None
All 37 counties
Bond County, IL, Calhoun County, IL, Clinton County, IL, Fayette County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Lincoln County, MO, Madison County, MO, Moniteau County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Warren County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 15 km from the middle of the area, began a volume at 09:06 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
Lincoln, IL (KILX), launched 00:00Z, 9.1 hours before the alert went out and 248 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 763 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
778 WGUS63 KLSX 020907 FFALSX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Saint Louis MO 407 AM CDT Tue May 2 2017 MOZ047>049-059-062-065-072>075-084-085-099-030000- /O.NEW.KLSX.FF.A.0002.170503T0600Z-170504T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Moniteau MO-Cole MO-Osage MO-Gasconade MO-Franklin MO- Jefferson MO-Crawford MO-Washington MO-Saint Francois MO- Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Jefferson City, Washington, Union, Sullivan, and Farmington 407 AM CDT Tue May 2 2017 ...FLASH FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY AFTERNOON... The National Weather Service in Saint Louis has issued a * Flash Flood Watch for portions of central Missouri...east central Missouri and southeast Missouri...including the following counties...in central Missouri...Cole MO...Moniteau MO and Osage MO. In east central Missouri...Crawford MO... Franklin MO...Gasconade MO...Jefferson MO and Washington MO. In southeast Missouri...Iron MO...Madison MO...Reynolds MO... Saint Francois MO and Sainte Genevieve MO. * From late tonight through Thursday afternoon * A low pressure system will bring an additional 1 to 3 inches of rain to parts of the region which are already experiencing flooding. The combination of saturated soils, new rainfall, and terrain effects will cause most of the rain to run off. This runoff may cause flash flooding. * Flash flooding is possible due to runoff caused by antecedent ground conditions and terrain effects. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ Kanofsky
9 follow-up statements
124 WGUS63 KLSX 021501 FFALSX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Saint Louis MO 1001 AM CDT Tue May 2 2017 ILZ058>060-064-065-069-070-074-079-098>102-MOZ036-041-042-050>052- 060-061-063-064-031230- /O.EXA.KLSX.FF.A.0002.170503T0600Z-170504T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Calhoun IL-Jersey IL- Madison IL-Saint Clair IL-Monroe IL-Pike MO-Boone MO-Audrain MO- Callaway MO-Montgomery MO-Lincoln MO-Warren MO-Saint Charles MO- Saint Louis MO-Saint Louis City MO- Including the cities of Litchfield, Vandalia, Centralia, Salem, Chester, Sparta, Alton, Edwardsville, Belleville, Cahokia, Bowling Green, Columbia, Mexico, Fulton, Saint Charles, and Saint Louis 1001 AM CDT Tue May 2 2017 ...FLASH FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY AFTERNOON... The National Weather Service in Saint Louis has expanded the * Flash Flood Watch to include portions of Illinois and Missouri...including the following counties...in Illinois... Bond IL...Calhoun IL...Clinton IL...Fayette IL...Greene IL... Jersey IL...Macoupin IL...Madison IL...Marion IL...Monroe IL... Montgomery IL...Randolph IL...Saint Clair IL and Washington IL. In Missouri...Audrain MO...Boone MO...Callaway MO... Lincoln MO...Montgomery MO...Pike MO...Saint Charles MO... Saint Louis City MO...Saint Louis MO and Warren MO. * from late tonight through Thursday afternoon * A new storm system will bring an additional 2 to 4 inches of rain to the region. This rain will impact areas which experienced 4 to 8 inches of rain this past weekend and are already experiencing flooding. The combination of this new rainfall, potential for isolated thunderstorms with higher rainfall rates, and the existing saturated soils will result in enhanced run off. This runoff should result in widespread areal flooding and may also cause rapid onset flash flooding. * Heavy rainfall will result in flooding of low lying and poor drainage areas...and potentially dangerous flash flooding on smaller creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ MOZ047>049-059-062-065-072>075-084-085-099-031230- /O.CON.KLSX.FF.A.0002.170503T0600Z-170504T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Moniteau MO-Cole MO-Osage MO-Gasconade MO-Franklin MO- Jefferson MO-Crawford MO-Washington MO-Saint Francois MO- Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Jefferson City, Washington, Union, Sullivan, and Farmington 1001 AM CDT Tue May 2 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY AFTERNOON... The Flash Flood Watch continues for * portions of central Missouri...east central Missouri and southeast Missouri...including the following counties...in central Missouri...Cole MO...Moniteau MO and Osage MO. In east central Missouri...Crawford MO...Franklin MO...Gasconade MO... Jefferson MO and Washington MO. In southeast Missouri...Iron MO...Madison MO...Reynolds MO...Saint Francois MO and Sainte Genevieve MO. * from late tonight through Thursday afternoon * A new storm system will bring an additional 2 to 4 inches of rain to the region. This rain will impact areas which experienced 4 to 8 inches of rain this past weekend and are already experiencing flooding. The combination of this new rainfall, potential for isolated thunderstorms with higher rainfall rates, and the existing saturated soils will result in enhanced run off. This runoff should result in widespread areal flooding and may also cause rapid onset flash flooding. * Heavy rainfall will result in flooding of low lying and poor drainage areas...and potentially dangerous flash flooding on smaller creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ Glass
028 WGUS63 KLSX 022054 FFALSX Flood Watch National Weather Service Saint Louis MO 354 PM CDT Tue May 2 2017 ILZ058>060-064-065-069-070-074-079-098>102-MOZ036-041-042-047>052- 059>065-072>075-084-085-099-030900- /O.CON.KLSX.FF.A.0002.170503T0600Z-170504T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Calhoun IL-Jersey IL- Madison IL-Saint Clair IL-Monroe IL-Pike MO-Boone MO-Audrain MO- Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-Lincoln MO- Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- Including the cities of Litchfield, Vandalia, Centralia, Salem, Chester, Sparta, Alton, Edwardsville, Belleville, Cahokia, Bowling Green, Columbia, Mexico, Jefferson City, Fulton, Saint Charles, Washington, Union, Sullivan, Saint Louis, and Farmington 354 PM CDT Tue May 2 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 1 AM CDT WEDNESDAY THROUGH THURSDAY AFTERNOON... The Flash Flood Watch continues for * portions of Illinois and Missouri...including the following counties...in Illinois...Bond IL...Calhoun IL...Clinton IL... Fayette IL...Greene IL...Jersey IL...Macoupin IL...Madison IL...Marion IL...Monroe IL...Montgomery IL...Randolph IL... Saint Clair IL and Washington IL. In Missouri...Audrain MO... Boone MO...Callaway MO...Cole MO...Crawford MO...Franklin MO... Gasconade MO...Iron MO...Jefferson MO...Lincoln MO...Madison MO...Moniteau MO...Montgomery MO...Osage MO...Pike MO... Reynolds MO...Saint Charles MO...Saint Francois MO...Saint Louis City MO...Saint Louis MO...Sainte Genevieve MO...Warren MO and Washington MO. * from 1 AM CDT Wednesday through Thursday afternoon * A new storm system will bring an additional 2 to 4 inches of rain to the region. This rain will impact areas which experienced 4 to 8 inches of rain this past weekend and are already experiencing flooding. The combination of this new rainfall falling on the existing saturated soils will result in enhanced run off. This runoff should result in widespread areal flooding and may also cause rapid onset flash flooding. * Heavy rainfall will result in flooding of low lying and poor drainage areas...and potentially dangerous flash flooding on smaller creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ Glass
250 WGUS63 KLSX 031001 FFALSX Flood Watch National Weather Service Saint Louis MO 501 AM CDT Wed May 3 2017 ILZ058>060-064-065-069-070-074-079-098>102-MOZ036-041-042-047>052- 059>065-072>075-084-085-099-032215- /O.CON.KLSX.FF.A.0002.000000T0000Z-170504T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Calhoun IL-Jersey IL- Madison IL-Saint Clair IL-Monroe IL-Pike MO-Boone MO-Audrain MO- Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-Lincoln MO- Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- Including the cities of Litchfield, Vandalia, Centralia, Salem, Chester, Sparta, Alton, Edwardsville, Belleville, Cahokia, Bowling Green, Columbia, Mexico, Jefferson City, Fulton, Saint Charles, Washington, Union, Sullivan, Saint Louis, and Farmington 501 AM CDT Wed May 3 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY AFTERNOON... The Flash Flood Watch continues for * portions of Illinois and Missouri...including the following counties...in Illinois...Bond IL...Calhoun IL...Clinton IL... Fayette IL...Greene IL...Jersey IL...Macoupin IL...Madison IL...Marion IL...Monroe IL...Montgomery IL...Randolph IL... Saint Clair IL and Washington IL. In Missouri...Audrain MO... Boone MO...Callaway MO...Cole MO...Crawford MO...Franklin MO... Gasconade MO...Iron MO...Jefferson MO...Lincoln MO...Madison MO...Moniteau MO...Montgomery MO...Osage MO...Pike MO... Reynolds MO...Saint Charles MO...Saint Francois MO...Saint Louis City MO...Saint Louis MO...Sainte Genevieve MO...Warren MO and Washington MO. * through Thursday afternoon * A new storm system will bring an additional 2 to 4 inches of rain to the region. This rain will impact areas which experienced 4 to 8 inches of rain this past weekend and are already experiencing flooding. The combination of this new rainfall falling on the existing saturated soils will result in enhanced run off. This runoff should result in widespread areal flooding and may also cause rapid onset flash flooding. * Heavy rainfall will result in flooding of low lying and poor drainage areas...and potentially dangerous flash flooding on smaller creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ GKS
123 WGUS63 KLSX 032052 FFALSX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Saint Louis MO 352 PM CDT Wed May 3 2017 ILZ058>060-064-065-069-070-074-079-098>102-MOZ052-060>065-072>075- 084-085-099-041200- /O.EXT.KLSX.FF.A.0002.000000T0000Z-170505T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Calhoun IL-Jersey IL- Madison IL-Saint Clair IL-Monroe IL-Lincoln MO-Warren MO- Saint Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO- Jefferson MO-Crawford MO-Washington MO-Saint Francois MO- Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Litchfield, Vandalia, Centralia, Salem, Chester, Sparta, Alton, Edwardsville, Belleville, Cahokia, Saint Charles, Washington, Union, Sullivan, Saint Louis, and Farmington 352 PM CDT Wed May 3 2017 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH FRIDAY MORNING... The Flash Flood Watch is now in effect for * portions of Illinois and Missouri...including the following counties...in Illinois...Bond IL...Calhoun IL...Clinton IL... Fayette IL...Greene IL...Jersey IL...Macoupin IL...Madison IL...Marion IL...Monroe IL...Montgomery IL...Randolph IL... Saint Clair IL and Washington IL. In Missouri...Crawford MO... Franklin MO...Iron MO...Jefferson MO...Lincoln MO...Madison MO...Reynolds MO...Saint Charles MO...Saint Francois MO... Saint Louis City MO...Saint Louis MO...Sainte Genevieve MO... Warren MO and Washington MO. * through Friday morning * Rain will continue across the region tonight, Thursday, and Thursday night. An additional 2 to 3 inches of rain is expected on top of what has already fallen today. The combination of this new rainfall falling on the existing saturated soils will result in enhanced run off. This runoff should result in widespread areal flooding and may also cause rapid onset flash flooding. * Heavy rainfall will result in flooding of low lying and poor drainage areas...and potentially dangerous flash flooding on smaller creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ MOZ036-041-042-047>051-059-041200- /O.CON.KLSX.FF.A.0002.000000T0000Z-170504T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pike MO-Boone MO-Audrain MO-Moniteau MO-Cole MO-Osage MO- Callaway MO-Montgomery MO-Gasconade MO- Including the cities of Bowling Green, Columbia, Mexico, Jefferson City, and Fulton 352 PM CDT Wed May 3 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY AFTERNOON... The Flash Flood Watch continues for * portions of central Missouri...east central Missouri and northeast Missouri...including the following counties...in central Missouri...Audrain MO...Boone MO...Callaway MO...Cole MO...Moniteau MO and Osage MO. In east central Missouri... Gasconade MO and Montgomery MO. In northeast Missouri...Pike MO. * through Thursday afternoon * Rain will continue across the region tonight into Thursday. An additional 1 to 2 inches of rain is expected on top of what has already fallen today. The combination of this new rainfall falling on the existing saturated soils will result in enhanced run off. This runoff should result in widespread areal flooding and may also cause rapid onset flash flooding. * Heavy rainfall will result in flooding of low lying and poor drainage areas...and potentially dangerous flash flooding on smaller creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ Glass
775 WGUS63 KLSX 040924 FFALSX Flood Watch National Weather Service Saint Louis MO 424 AM CDT Thu May 4 2017 MOZ036-041-042-047>051-059-041800- /O.CON.KLSX.FF.A.0002.000000T0000Z-170504T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pike MO-Boone MO-Audrain MO-Moniteau MO-Cole MO-Osage MO- Callaway MO-Montgomery MO-Gasconade MO- Including the cities of Bowling Green, Columbia, Mexico, Jefferson City, and Fulton 424 AM CDT Thu May 4 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... The Flash Flood Watch continues for * portions of central Missouri...east central Missouri and northeast Missouri...including the following counties...in central Missouri...Audrain MO...Boone MO...Callaway MO...Cole MO...Moniteau MO and Osage MO. In east central Missouri... Gasconade MO and Montgomery MO. In northeast Missouri...Pike MO. * until 1 PM CDT this afternoon * Rain will continue across the region this morning. An additional inch of rain is possible across parts of this area on top of what has already fallen. The combination of this new rainfall falling on the existing saturated soils will result in enhanced run off. This runoff should result in widespread areal flooding and may also cause rapid onset flash flooding. * Heavy rainfall will result in flooding of low lying and poor drainage areas...and potentially dangerous flash flooding on smaller creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ ILZ058>060-064-065-069-070-074-079-098>102-MOZ052-060>065-072>075- 084-085-099-042130- /O.CON.KLSX.FF.A.0002.000000T0000Z-170505T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Calhoun IL-Jersey IL- Madison IL-Saint Clair IL-Monroe IL-Lincoln MO-Warren MO- Saint Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO- Jefferson MO-Crawford MO-Washington MO-Saint Francois MO- Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Litchfield, Vandalia, Centralia, Salem, Chester, Sparta, Alton, Edwardsville, Belleville, Cahokia, Saint Charles, Washington, Union, Sullivan, Saint Louis, and Farmington 424 AM CDT Thu May 4 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING... The Flash Flood Watch continues for * portions of Illinois and Missouri...including the following counties...in Illinois...Bond IL...Calhoun IL...Clinton IL... Fayette IL...Greene IL...Jersey IL...Macoupin IL...Madison IL...Marion IL...Monroe IL...Montgomery IL...Randolph IL... Saint Clair IL and Washington IL. In Missouri...Crawford MO... Franklin MO...Iron MO...Jefferson MO...Lincoln MO...Madison MO...Reynolds MO...Saint Charles MO...Saint Francois MO... Saint Louis City MO...Saint Louis MO...Sainte Genevieve MO... Warren MO and Washington MO. * through Friday morning * Rain will continue across the region today and tonight. An additional 1 to 2 inches of rain is expected on top of what has already fallen. The combination of this new rainfall falling on the existing saturated soils will result in enhanced run off. This runoff should result in widespread areal flooding and may also cause rapid onset flash flooding. * Heavy rainfall will result in flooding of low lying and poor drainage areas...and potentially dangerous flash flooding on smaller creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ GKS
432 WGUS63 KLSX 041350 FFALSX Flood Watch National Weather Service Saint Louis MO 850 AM CDT Thu May 4 2017 MOZ036-041-042-047>051-041500- /O.CAN.KLSX.FF.A.0002.000000T0000Z-170504T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pike MO-Boone MO-Audrain MO-Moniteau MO-Cole MO-Osage MO- Callaway MO-Montgomery MO- Including the cities of Bowling Green, Columbia, Mexico, Jefferson City, and Fulton 850 AM CDT Thu May 4 2017 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of central Missouri...east central Missouri and northeast Missouri has been cancelled as the rain threat has either come to an end or has lightened up considerably to no longer pose a cause to flooding. $$ MOZ059-041800- /O.CON.KLSX.FF.A.0002.000000T0000Z-170504T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Gasconade MO- 850 AM CDT Thu May 4 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... The Flash Flood Watch continues for * a portion of east central Missouri...including the following county...Gasconade MO. * until 1 PM CDT this afternoon * Rain will come to an end around midday. Up to an additional half inch of rain is possible across parts of this area on top of what has already fallen. The combination of this new rainfall falling on the existing saturated soils will result in enhanced run off. This runoff should result in widespread areal flooding and may also cause rapid onset flash flooding. * Heavy rainfall will result in flooding of low lying and poor drainage areas...and potentially dangerous flash flooding on smaller creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ ILZ058>060-064-065-069-070-074-079-098>102-MOZ052-060>065-072>075- 084-085-099-050200- /O.CON.KLSX.FF.A.0002.000000T0000Z-170505T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Calhoun IL-Jersey IL- Madison IL-Saint Clair IL-Monroe IL-Lincoln MO-Warren MO- Saint Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO- Jefferson MO-Crawford MO-Washington MO-Saint Francois MO- Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Litchfield, Vandalia, Centralia, Salem, Chester, Sparta, Alton, Edwardsville, Belleville, Cahokia, Saint Charles, Washington, Union, Sullivan, Saint Louis, and Farmington 850 AM CDT Thu May 4 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING... The Flash Flood Watch continues for * portions of Illinois and Missouri...including the following counties...in Illinois...Bond IL...Calhoun IL...Clinton IL... Fayette IL...Greene IL...Jersey IL...Macoupin IL...Madison IL...Marion IL...Monroe IL...Montgomery IL...Randolph IL... Saint Clair IL and Washington IL. In Missouri...Crawford MO... Franklin MO...Iron MO...Jefferson MO...Lincoln MO...Madison MO...Reynolds MO...Saint Charles MO...Saint Francois MO... Saint Louis City MO...Saint Louis MO...Sainte Genevieve MO... Warren MO and Washington MO. * through Friday morning * Rain will continue across the region today and, for some areas, well into tonight. An additional 1 to 2 inches of rain is expected on top of what has already fallen. The combination of this new rainfall falling on the existing saturated soils will result in enhanced run off. This runoff should result in widespread areal flooding and may also cause rapid onset flash flooding. * Heavy rainfall will result in flooding of low lying and poor drainage areas...and potentially dangerous flash flooding on smaller creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ TES
924 WGUS63 KLSX 041755 FFALSX Flood Watch National Weather Service Saint Louis MO 1255 PM CDT Thu May 4 2017 ILZ058-098-MOZ052-060-041900- /O.CAN.KLSX.FF.A.0002.000000T0000Z-170505T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Greene IL-Calhoun IL-Lincoln MO-Warren MO- 1255 PM CDT Thu May 4 2017 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of southwest Illinois and east central Missouri has been cancelled. The rain threat has either come to an end or has lightened up considerably to no longer pose a cause to flooding. $$ MOZ059-041900- /O.EXP.KLSX.FF.A.0002.000000T0000Z-170504T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Gasconade MO- 1255 PM CDT Thu May 4 2017 ...FLASH FLOOD WATCH WILL EXPIRE AT 1 PM CDT THIS AFTERNOON... The Flash Flood Watch for a portion of east central Missouri will expire at 1 PM CDT this afternoon. The rain threat has either come to an end or has lightened up considerably to no longer pose a cause to flooding. $$ ILZ059-060-064-065-069-070-074-079-099>102-MOZ061>065-072>075-084- 085-099-050600- /O.CON.KLSX.FF.A.0002.000000T0000Z-170505T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL- Washington IL-Randolph IL-Jersey IL-Madison IL-Saint Clair IL- Monroe IL-Saint Charles MO-Franklin MO-Saint Louis MO- Saint Louis City MO-Jefferson MO-Crawford MO-Washington MO- Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO- Reynolds MO- Including the cities of Litchfield, Vandalia, Centralia, Salem, Chester, Sparta, Alton, Edwardsville, Belleville, Cahokia, Saint Charles, Washington, Union, Sullivan, Saint Louis, and Farmington 1255 PM CDT Thu May 4 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING... The Flash Flood Watch continues for * portions of Illinois and Missouri...including the following counties...in Illinois...Bond IL...Clinton IL...Fayette IL... Jersey IL...Macoupin IL...Madison IL...Marion IL...Monroe IL... Montgomery IL...Randolph IL...Saint Clair IL and Washington IL. In Missouri...Crawford MO...Franklin MO...Iron MO... Jefferson MO...Madison MO...Reynolds MO...Saint Charles MO... Saint Francois MO...Saint Louis City MO...Saint Louis MO... Sainte Genevieve MO and Washington MO. * through Friday morning * Rain ongoing across the Watch area will gradually shift eastward into tonight, and is only expected to end in portions of southwest Illinois late tonight. An additional one and a half inches of rain is expected on top of what has already fallen. The combination of this new rainfall falling on the existing saturated soils will result in enhanced run off. This runoff should result in widespread areal flooding and may also cause rapid onset flash flooding. * Heavy rainfall will result in flooding of low lying and poor drainage areas...and potentially dangerous flash flooding on smaller creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ TES
749 WGUS63 KLSX 042035 FFALSX Flood Watch National Weather Service Saint Louis MO 335 PM CDT Thu May 4 2017 ILZ059-060-064-099>102-MOZ061>065-072-073-084-099-042145- /O.CAN.KLSX.FF.A.0002.000000T0000Z-170505T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Macoupin IL-Montgomery IL-Bond IL-Jersey IL-Madison IL- Saint Clair IL-Monroe IL-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Iron MO-Reynolds MO- Including the cities of Litchfield, Alton, Edwardsville, Belleville, Cahokia, Saint Charles, Washington, Union, Sullivan, and Saint Louis 335 PM CDT Thu May 4 2017 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of Illinois and Missouri has been cancelled. The rain threat has either come to an end or has lightened up considerably to no longer pose a cause to flooding. $$ ILZ065-069-070-074-079-MOZ074-075-085-051200- /O.CON.KLSX.FF.A.0002.000000T0000Z-170505T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL- Saint Francois MO-Sainte Genevieve MO-Madison MO- Including the cities of Vandalia, Centralia, Salem, Chester, Sparta, and Farmington 335 PM CDT Thu May 4 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING... The Flash Flood Watch continues for * portions of Illinois and southeast Missouri...including the following counties...in Illinois...Clinton IL...Fayette IL... Marion IL...Randolph IL and Washington IL. In southeast Missouri...Madison MO...Saint Francois MO and Sainte Genevieve MO. * through Friday morning * Rain ongoing across the Watch area will gradually shift eastward into tonight, and is only expected to end in portions of southwest Illinois late tonight. Up to an additional one inch of rain is expected on top of what has already fallen. The combination of this new rainfall falling on the existing saturated soils will result in enhanced run off. This runoff should result in widespread areal flooding and may also cause rapid onset flash flooding. * Heavy rainfall will result in flooding of low lying and poor drainage areas...and potentially dangerous flash flooding on smaller creeks and streams. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is advanced notice that conditions are favorable that may lead to flash flooding. People in the Watch area, especially in flood prone areas, should use this time to make preparations just in case. Stay informed, and be ready for quick action if flooding is observed or if a Flash Flood Warning is issued. && $$ TES
176 WGUS63 KLSX 050040 FFALSX Flood Watch National Weather Service Saint Louis MO 740 PM CDT Thu May 4 2017 ILZ065-069-070-074-079-MOZ074-075-085-050145- /O.CAN.KLSX.FF.A.0002.000000T0000Z-170505T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL- Saint Francois MO-Sainte Genevieve MO-Madison MO- Including the cities of Vandalia, Centralia, Salem, Chester, Sparta, and Farmington 740 PM CDT Thu May 4 2017 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of Illinois and southeast Missouri has been cancelled. Moderate to heavy rain has moved out of the forecast area. Therefore, the flash flood watch has been cancelled. $$ Byrd
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 9:28 AM CDT | Areal Flood Warning | LSX | Boone, Callaway, Cole, Moniteau, Osage | 3 days |
| May 2, 10:55 AM CDT | Areal Flood Warning | LSX | Gasconade, Lincoln, Montgomery, Warren | 3 days |
| May 2, 4:43 PM CDT | Areal Flood Warning | LSX | Crawford, Iron, Madison, Reynolds, Sainte Genevieve, Saint Francois and 1 more | 3 days |
| May 2, 10:03 AM CDT | Areal Flood Warning | LSX | Bond, Fayette, Greene, Jersey, Macoupin, Montgomery | 72 hr |
Nearby
Flash Flood Watches in Missouri, 2017Flash Flood Watches in Illinois, 2017Every flash flood watch in 2017
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.