Alert archive / Iowa / Flash Flood Watches in 2016
Flash Flood Watch 14, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood watch at Sep 20, 2016, 3:32 PM CDT for 27 counties in Iowa. It took effect at Sep 21, 2016, 1:00 AM CDT. It was in force for 60 hr.
The area
The counties it named.
The facts
- Issued
- Sep 20, 2016, 3:32 PM CDT (20:32 UTC)
- In effect from
- Sep 21, 2016, 1:00 AM CDT
- Expired
- Sep 23, 2016, 1:00 PM CDT
- In force
- 60 hr
- Issued by
- NWS Des Moines, IA
- Flood severity
- None
All 27 counties
Black Hawk County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Cerro Gordo County, IA, Crawford County, IA, Emmet County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Kossuth County, IA, Marshall County, IA, Palo Alto County, IA, Pocahontas County, IA, Sac County, IA, Story County, IA, Tama County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 97 km from the middle of the area, began a volume at 20:31 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
Minneapolis, MN (KMPX), launched 12:00Z, 8.5 hours before the alert went out and 251 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2137 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
921 WGUS63 KDMX 202032 FFADMX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 332 PM CDT TUE SEP 20 2016 ...SEVERAL ROUNDS OF HEAVY RAINFALL EXPECTED OVER NORTHERN IOWA AND CENTRAL IOWA THROUGH THURSDAY AFTERNOON... .A SURGE OF UNSEASONABLY WARM AND MOIST AIR IS RETURNING TO IOWA TONIGHT THROUGH THE WEEKEND. THUNDERSTORMS WITH LOCALLY HEAVY RAIN ARE EXPECTED TO DEVELOP ACROSS SOUTHWEST MINNESOTA AND POTENTIALLY MOVE ACROSS NORTHERN IOWA TONIGHT. THERE IS SOME UNCERTAINTY TONIGHT AS TO HOW FAR SOUTH THE STORMS WILL TRACK INTO IOWA. A SECOND PERIOD OF MORE WIDESPREAD THUNDERSTORMS IS EXPECTED OVER MOST OF THE NORTHERN HALF OF IOWA WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON. HEAVY RAINFALL OF 2 TO 3 INCHES WITH LOCALLY HIGHER AMOUNTS ARE POSSIBLE DURING THIS PERIOD. ADDITIONAL RAINFALL WILL BE POSSIBLE SATURDAY AND SUNDAY. IAZ004>007-015>017-210445- /O.NEW.KDMX.FF.A.0014.160921T0600Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE 332 PM CDT TUE SEP 20 2016 ...FLASH FLOOD WATCH IN EFFECT FROM 1 AM CDT WEDNESDAY THROUGH THURSDAY EVENING... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF NORTH CENTRAL IOWA AND NORTHWEST IOWA...INCLUDING THE FOLLOWING AREAS...IN NORTH CENTRAL IOWA...CERRO GORDO...HANCOCK...KOSSUTH...WINNEBAGO AND WORTH. IN NORTHWEST IOWA...EMMET AND PALO ALTO. * FROM 1 AM CDT WEDNESDAY THROUGH THURSDAY EVENING * THUNDERSTORMS WITH LOCALLY HEAVY RAINFALL IN EXCESS OF 2 INCHES ARE POSSIBLE AFTER MIDNIGHT UNTIL SUNRISE. THERE REMAINS SOME UNCERTAINTY OVERNIGHT TONIGHT...AS THE STORMS MAY REMAIN FARTHER NORTH IN MINNESOTA. * ROADS MAY BECOME COVERED WITH WATER...AND FAST RISES ON LOCAL CREEKS AND STREAMS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ IAZ023>028-033>039-044>048-210445- /O.NEW.KDMX.FF.A.0014.160922T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY- INCLUDING THE CITIES OF...POCAHONTAS...LAURENS...ROLFE...FONDA... GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION...BELMOND... HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK...GREENE... APLINGTON...ALLISON...DUMONT...WAVERLY...SAC CITY...LAKE VIEW... ODEBOLT...WALL LAKE...SCHALLER...EARLY...ROCKWELL CITY...MANSON... LAKE CITY...POMEROY...FORT DODGE...WEBSTER CITY...IOWA FALLS... ELDORA...ACKLEY...GRUNDY CENTER...REINBECK...CONRAD...DIKE... WELLSBURG...WATERLOO...CEDAR FALLS...DENISON...CARROLL... JEFFERSON...BOONE...AMES 332 PM CDT TUE SEP 20 2016 ...FLASH FLOOD WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA... INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE... GRUNDY...HAMILTON...HARDIN...STORY AND WEBSTER. IN NORTH CENTRAL IOWA...BUTLER...FRANKLIN...HUMBOLDT AND WRIGHT. IN NORTHEAST IOWA...BLACK HAWK AND BREMER. IN NORTHWEST IOWA... POCAHONTAS. IN WEST CENTRAL IOWA...CALHOUN...CARROLL... CRAWFORD...GREENE AND SAC. * FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING * SEVERAL ROUNDS OF THUNDERSTORMS ARE EXPECTED FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE THROUGH THE OVERNIGHT IN THE HEAVIER STORMS. RAINFALL TOTALS OF 2 TO 3 INCHES WITH LOCALLY HIGHER AMOUNTS ARE POSSIBLE. * ROADS MAY BECOME COVERED WITH WATER...AND FAST RISES ON LOCAL CREEKS AND STREAMS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ REV
14 follow-up statements
261 WGUS63 KDMX 210145 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 845 PM CDT TUE SEP 20 2016 ...SEVERAL ROUNDS OF HEAVY RAINFALL EXPECTED OVER NORTHERN IOWA AND CENTRAL IOWA THROUGH THURSDAY AFTERNOON... .A SURGE OF UNSEASONABLY WARM AND MOIST AIR IS RETURNING TO IOWA TONIGHT THROUGH THE WEEKEND. THUNDERSTORMS WITH LOCALLY HEAVY RAIN ARE EXPECTED TO DEVELOP ACROSS SOUTHWEST MINNESOTA AND POTENTIALLY MOVE ACROSS NORTHERN IOWA TONIGHT. UNCERTAINTY STILL EXISTS TONIGHT AS TO HOW FAR SOUTH THE STORMS WILL TRACK INTO IOWA. A SECOND PERIOD OF MORE WIDESPREAD THUNDERSTORMS IS EXPECTED OVER MOST OF THE NORTHERN HALF OF IOWA WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON. HEAVY RAINFALL OF 2 TO 3 INCHES WITH LOCALLY HIGHER AMOUNTS ARE POSSIBLE DURING THIS PERIOD. ADDITIONAL RAINFALL WILL BE POSSIBLE SATURDAY AND SUNDAY. IAZ004>007-015>017-211000- /O.CON.KDMX.FF.A.0014.160921T0600Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE 845 PM CDT TUE SEP 20 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 1 AM CDT WEDNESDAY THROUGH THURSDAY EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTH CENTRAL IOWA AND NORTHWEST IOWA...INCLUDING THE FOLLOWING AREAS...IN NORTH CENTRAL IOWA...CERRO GORDO... HANCOCK...KOSSUTH...WINNEBAGO AND WORTH. IN NORTHWEST IOWA... EMMET AND PALO ALTO. * FROM 1 AM CDT WEDNESDAY THROUGH THURSDAY EVENING * THUNDERSTORMS WITH LOCALLY HEAVY RAINFALL IN EXCESS OF 2 INCHES ARE POSSIBLE AFTER MIDNIGHT UNTIL SUNRISE. UNCERTAINTY REMAINS OVERNIGHT TONIGHT...AS THE STORMS MAY REMAIN FARTHER NORTH IN MINNESOTA. * ROADS MAY BECOME COVERED WITH WATER...AND FAST RISES ON LOCAL CREEKS AND STREAMS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ IAZ023>028-033>039-044>048-211000- /O.CON.KDMX.FF.A.0014.160922T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY- INCLUDING THE CITIES OF...POCAHONTAS...LAURENS...ROLFE...FONDA... GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION...BELMOND... HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK...GREENE... APLINGTON...ALLISON...DUMONT...WAVERLY...SAC CITY...LAKE VIEW... ODEBOLT...WALL LAKE...SCHALLER...EARLY...ROCKWELL CITY...MANSON... LAKE CITY...POMEROY...FORT DODGE...WEBSTER CITY...IOWA FALLS... ELDORA...ACKLEY...GRUNDY CENTER...REINBECK...CONRAD...DIKE... WELLSBURG...WATERLOO...CEDAR FALLS...DENISON...CARROLL... JEFFERSON...BOONE...AMES 845 PM CDT TUE SEP 20 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...STORY AND WEBSTER. IN NORTH CENTRAL IOWA... BUTLER...FRANKLIN...HUMBOLDT AND WRIGHT. IN NORTHEAST IOWA... BLACK HAWK AND BREMER. IN NORTHWEST IOWA...POCAHONTAS. IN WEST CENTRAL IOWA...CALHOUN...CARROLL...CRAWFORD...GREENE AND SAC. * FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING * SEVERAL ROUNDS OF THUNDERSTORMS ARE EXPECTED FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE THROUGH THE OVERNIGHT IN THE HEAVIER STORMS. RAINFALL TOTALS OF 2 TO 3 INCHES WITH LOCALLY HIGHER AMOUNTS ARE POSSIBLE. * ROADS MAY BECOME COVERED WITH WATER...AND FAST RISES ON LOCAL CREEKS AND STREAMS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ MJB
345 WGUS63 KDMX 210933 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 433 AM CDT WED SEP 21 2016 ...SEVERAL ROUNDS OF THUNDERSTORMS EXPECTED OVER NORTHERN AND CENTRAL IOWA THROUGH THURSDAY AFTERNOON... .AN UNSEASONABLY WARM AND MOIST AIRMASS IS RETURNING TO IOWA AND WILL LEAD TO THUNDERSTORMS WITH THE POTENTIAL FOR HEAVY RAINFALL THROUGH THURSDAY. THUNDERSTORMS WILL BE ISOLATED THOUGH MUCH OF TODAY BEFORE THE ACTIVITY BECOMES MORE WIDESPREAD OVER THE NORTHERN HALF OF IOWA THIS EVENING THROUGH THURSDAY AFTERNOON. IAZ004>007-015>017-211745- /O.CON.KDMX.FF.A.0014.000000T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE 433 AM CDT WED SEP 21 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTH CENTRAL IOWA AND NORTHWEST IOWA...INCLUDING THE FOLLOWING AREAS...IN NORTH CENTRAL IOWA...CERRO GORDO... HANCOCK...KOSSUTH...WINNEBAGO AND WORTH. IN NORTHWEST IOWA... EMMET AND PALO ALTO. * THROUGH THURSDAY EVENING * ISOLATED THUNDERSTORMS ARE FORECAST THROUGH MID AFTERNOON BEFORE BECOMING MORE WIDESPREAD THROUGH THIS EVENING. ADDITIONAL STORMS ARE EXPECTED ON THURSDAY. ANY THUNDERSTORMS THAT DEVELOP WILL HAVE THE POTENTIAL FOR HEAVY RAIN. RAINFALL AMOUNTS OF 2 TO 4 INCHES MAY OCCUR. * ROADS MAY BECOME COVERED WITH WATER...AND FAST RISES ON LOCAL CREEKS AND STREAMS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ IAZ023>028-033>039-044>048-211745- /O.CON.KDMX.FF.A.0014.160922T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY- INCLUDING THE CITIES OF...POCAHONTAS...LAURENS...ROLFE...FONDA... GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION...BELMOND... HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK...GREENE... APLINGTON...ALLISON...DUMONT...WAVERLY...SAC CITY...LAKE VIEW... ODEBOLT...WALL LAKE...SCHALLER...EARLY...ROCKWELL CITY...MANSON... LAKE CITY...POMEROY...FORT DODGE...WEBSTER CITY...IOWA FALLS... ELDORA...ACKLEY...GRUNDY CENTER...REINBECK...CONRAD...DIKE... WELLSBURG...WATERLOO...CEDAR FALLS...DENISON...CARROLL... JEFFERSON...BOONE...AMES 433 AM CDT WED SEP 21 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH THURSDAY EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...STORY AND WEBSTER. IN NORTH CENTRAL IOWA... BUTLER...FRANKLIN...HUMBOLDT AND WRIGHT. IN NORTHEAST IOWA... BLACK HAWK AND BREMER. IN NORTHWEST IOWA...POCAHONTAS. IN WEST CENTRAL IOWA...CALHOUN...CARROLL...CRAWFORD...GREENE AND SAC. * FROM THIS EVENING THROUGH THURSDAY EVENING * SEVERAL ROUNDS OF THUNDERSTORMS ARE EXPECTED THIS EVENING THROUGH THURSDAY AFTERNOON. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE THROUGH THE OVERNIGHT IN THE HEAVIER STORMS. RAINFALL TOTALS OF 2 TO 3 INCHES WITH LOCALLY HIGHER AMOUNTS ARE POSSIBLE. * ROADS MAY BECOME COVERED WITH WATER...AND FAST RISES ON LOCAL CREEKS AND STREAMS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
623 WGUS63 KDMX 211555 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 1055 AM CDT WED SEP 21 2016 ...SEVERAL ROUNDS OF THUNDERSTORMS EXPECTED OVER NORTHERN AND CENTRAL IOWA THROUGH THURSDAY AFTERNOON... .AN UNSEASONABLY WARM AND MOIST AIRMASS HAS RETURNED TO IOWA AND WILL LEAD TO THUNDERSTORMS WITH THE POTENTIAL FOR HEAVY RAINFALL THROUGH THURSDAY. THUNDERSTORMS WILL BE ISOLATED THOUGH MUCH OF TODAY BEFORE THE ACTIVITY BECOMES MORE WIDESPREAD OVER THE NORTHERN HALF OF IOWA THIS EVENING THROUGH THURSDAY AFTERNOON. IAZ004>007-015>017-212200- /O.CON.KDMX.FF.A.0014.000000T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE 1055 AM CDT WED SEP 21 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTH CENTRAL IOWA AND NORTHWEST IOWA...INCLUDING THE FOLLOWING AREAS...IN NORTH CENTRAL IOWA...CERRO GORDO... HANCOCK...KOSSUTH...WINNEBAGO AND WORTH. IN NORTHWEST IOWA... EMMET AND PALO ALTO. * THROUGH THURSDAY EVENING * ISOLATED THUNDERSTORMS ARE FORECAST THROUGH THE AFTERNOON BEFORE BECOMING MORE WIDESPREAD THIS EVENING. ADDITIONAL STORMS ARE EXPECTED ON THURSDAY. ANY THUNDERSTORMS THAT DEVELOP WILL HAVE THE POTENTIAL FOR HEAVY RAIN. RAINFALL AMOUNTS OF 2 TO 4 INCHES MAY OCCUR. * ROADS MAY BECOME COVERED WITH WATER...AND FAST RISES ON LOCAL CREEKS AND STREAMS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ IAZ023>028-033>039-044>048-212200- /O.CON.KDMX.FF.A.0014.160922T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY- INCLUDING THE CITIES OF...POCAHONTAS...LAURENS...ROLFE...FONDA... GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION...BELMOND... HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK...GREENE... APLINGTON...ALLISON...DUMONT...WAVERLY...SAC CITY...LAKE VIEW... ODEBOLT...WALL LAKE...SCHALLER...EARLY...ROCKWELL CITY...MANSON... LAKE CITY...POMEROY...FORT DODGE...WEBSTER CITY...IOWA FALLS... ELDORA...ACKLEY...GRUNDY CENTER...REINBECK...CONRAD...DIKE... WELLSBURG...WATERLOO...CEDAR FALLS...DENISON...CARROLL... JEFFERSON...BOONE...AMES 1055 AM CDT WED SEP 21 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH THURSDAY EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...STORY AND WEBSTER. IN NORTH CENTRAL IOWA... BUTLER...FRANKLIN...HUMBOLDT AND WRIGHT. IN NORTHEAST IOWA... BLACK HAWK AND BREMER. IN NORTHWEST IOWA...POCAHONTAS. IN WEST CENTRAL IOWA...CALHOUN...CARROLL...CRAWFORD...GREENE AND SAC. * FROM 7 PM CDT THIS EVENING THROUGH THURSDAY EVENING * SEVERAL ROUNDS OF THUNDERSTORMS ARE EXPECTED THIS EVENING THROUGH THURSDAY AFTERNOON. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE OVERNIGHT IN THE HEAVIER STORMS. RAINFALL TOTALS OF 2 TO 3 INCHES WITH LOCALLY HIGHER AMOUNTS ARE POSSIBLE. * ROADS MAY BECOME COVERED WITH WATER...AND FAST RISES ON LOCAL CREEKS AND STREAMS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ SMALL
511 WGUS63 KDMX 212053 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 353 PM CDT WED SEP 21 2016 ...SEVERAL ROUNDS OF THUNDERSTORMS EXPECTED OVER NORTHERN AND CENTRAL IOWA THROUGH THURSDAY... .AN UNSEASONABLY WARM AND MOIST AIRMASS HAS RETURNED TO IOWA AND WILL LEAD TO THUNDERSTORMS WITH THE POTENTIAL FOR HEAVY RAINFALL THROUGH THURSDAY. THUNDERSTORMS WILL BE ISOLATED THOUGH MUCH OF TODAY BEFORE THE ACTIVITY BECOMES MORE WIDESPREAD OVER THE NORTHERN HALF OF IOWA THIS EVENING THROUGH THURSDAY AFTERNOON. IAZ004>007-015>017-220300- /O.CON.KDMX.FF.A.0014.000000T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE 353 PM CDT WED SEP 21 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTH CENTRAL IOWA AND NORTHWEST IOWA...INCLUDING THE FOLLOWING AREAS...IN NORTH CENTRAL IOWA...CERRO GORDO... HANCOCK...KOSSUTH...WINNEBAGO AND WORTH. IN NORTHWEST IOWA... EMMET AND PALO ALTO. * THROUGH THURSDAY EVENING * ISOLATED THUNDERSTORMS ARE FORECAST THROUGH THE AFTERNOON BEFORE BECOMING MORE WIDESPREAD THIS EVENING AND OVERNIGHT. ADDITIONAL STORMS ARE EXPECTED ON THURSDAY. ANY THUNDERSTORMS THAT DEVELOP WILL HAVE THE POTENTIAL FOR HEAVY RAIN. RAINFALL AMOUNTS OF 2 TO 4 INCHES MAY OCCUR WITH EVEN HIGHER AMOUNTS LOCALLY POSSIBLE. * ROADS MAY BECOME COVERED WITH WATER...AND FAST RISES ON LOCAL CREEKS AND STREAMS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ IAZ023>028-033>039-044>048-220300- /O.CON.KDMX.FF.A.0014.160922T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY- INCLUDING THE CITIES OF...POCAHONTAS...LAURENS...ROLFE...FONDA... GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION...BELMOND... HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK...GREENE... APLINGTON...ALLISON...DUMONT...WAVERLY...SAC CITY...LAKE VIEW... ODEBOLT...WALL LAKE...SCHALLER...EARLY...ROCKWELL CITY...MANSON... LAKE CITY...POMEROY...FORT DODGE...WEBSTER CITY...IOWA FALLS... ELDORA...ACKLEY...GRUNDY CENTER...REINBECK...CONRAD...DIKE... WELLSBURG...WATERLOO...CEDAR FALLS...DENISON...CARROLL... JEFFERSON...BOONE...AMES 353 PM CDT WED SEP 21 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH THURSDAY EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...STORY AND WEBSTER. IN NORTH CENTRAL IOWA... BUTLER...FRANKLIN...HUMBOLDT AND WRIGHT. IN NORTHEAST IOWA... BLACK HAWK AND BREMER. IN NORTHWEST IOWA...POCAHONTAS. IN WEST CENTRAL IOWA...CALHOUN...CARROLL...CRAWFORD...GREENE AND SAC. * FROM 7 PM CDT THIS EVENING THROUGH THURSDAY EVENING * SEVERAL ROUNDS OF THUNDERSTORMS ARE EXPECTED THIS EVENING THROUGH THURSDAY AFTERNOON. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WILL BE POSSIBLE OVERNIGHT IN THE HEAVIER STORMS. RAINFALL TOTALS OF 2 TO 3 INCHES WITH LOCALLY HIGHER AMOUNTS ARE POSSIBLE. * ROADS MAY BECOME COVERED WITH WATER...AND FAST RISES ON LOCAL CREEKS AND STREAMS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ SMALL
449 WGUS63 KDMX 220026 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 726 PM CDT WED SEP 21 2016 ...SEVERAL ROUNDS OF THUNDERSTORMS EXPECTED OVER NORTHERN AND CENTRAL IOWA THROUGH THURSDAY... .AN UNSEASONABLY WARM AND MOIST AIRMASS HAS RETURNED TO IOWA AND WITH THUNDERSTORMS EXPECTED TO BRING HEAVY RAINFALL THROUGH THURSDAY. THUNDERSTORMS WILL BE ISOLATED THIS EVENING ACROSS PORTIONS OF NORTH CENTRAL AND NORTHEAST IOWA BEFORE THE ACTIVITY BECOMES MORE WIDESPREAD OVER THE NORTHERN HALF OF IOWA LATE TONIGHT THROUGH THURSDAY AFTERNOON. IAZ004>007-015>017-023>028-033>039-044>048-221000- /O.CON.KDMX.FF.A.0014.000000T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS... ROLFE...FONDA...GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION... BELMOND...HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK... GREENE...APLINGTON...ALLISON...DUMONT...WAVERLY...SAC CITY... LAKE VIEW...ODEBOLT...WALL LAKE...SCHALLER...EARLY... ROCKWELL CITY...MANSON...LAKE CITY...POMEROY...FORT DODGE... WEBSTER CITY...IOWA FALLS...ELDORA...ACKLEY...GRUNDY CENTER... REINBECK...CONRAD...DIKE...WELLSBURG...WATERLOO...CEDAR FALLS... DENISON...CARROLL...JEFFERSON...BOONE...AMES 726 PM CDT WED SEP 21 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...STORY AND WEBSTER. IN NORTH CENTRAL IOWA... BUTLER...CERRO GORDO...FRANKLIN...HANCOCK...HUMBOLDT... KOSSUTH...WINNEBAGO...WORTH AND WRIGHT. IN NORTHEAST IOWA... BLACK HAWK AND BREMER. IN NORTHWEST IOWA...EMMET...PALO ALTO AND POCAHONTAS. IN WEST CENTRAL IOWA...CALHOUN...CARROLL... CRAWFORD...GREENE AND SAC. * THROUGH THURSDAY EVENING * ISOLATED THUNDERSTORMS ARE EXPECTED TO CONTINUE THIS EVENING IN AREAS AROUND MASON CITY TO TRIPOLI. ADDITIONAL THUNDERSTORMS ARE EXPECTED DEVELOP ACROSS SOUTHERN MINNESOTA LATE THIS EVENING AND SPREAD SOUTHWARD ACROSS NORTHERN IOWA LATE TONIGHT INTO THURSDAY. ALL OF THE THUNDERSTORM ACTIVITY WILL HAVE THE POTENTIAL FOR HEAVY RAIN. RAINFALL AMOUNTS OF 2 TO 4 INCHES MAY OCCUR WITH EVEN HIGHER AMOUNTS OF 4 TO 6 INCHES LOCALLY POSSIBLE. THE GREATEST POTENTIAL FOR THE HIGHEST AMOUNTS WILL STRETCH FROM NEAR MASON CITY TOWARD NORTHERN BUTLER COUNTIES THROUGH TONIGHT. * RAINFALL AMOUNTS OF 4 TO 6 INCHES HAS LIKELY ALREADY FALLEN JUST NORTH AND EAST OF AREAS STRETCHING FROM MASON CITY TO NORTHERN PORTIONS OF BUTLER COUNTY. MUCH OF THE WATER THAT FELL ACROSS FLOYD COUNTY WILL BE DRAINING INTO BUTLER COUNTY OVERNIGHT. * ROADS MAY BECOME COVERED WITH WATER...AND FAST RISES ON LOCAL CREEKS AND STREAMS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ MJB
599 WGUS63 KDMX 220412 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 1112 PM CDT WED SEP 21 2016 ...SEVERAL ROUNDS OF THUNDERSTORMS EXPECTED OVER NORTHERN AND CENTRAL IOWA THROUGH THURSDAY... .THUNDERSTORM ACTIVITY OVER SOUTHERN MINNESOTA IS EXPECTED TO SPREAD SOUTHWARD THROUGH NORTHERN IOWA LATE TONIGHT. THIS MAY PRODUCE ADDITIONAL AREAS OF HEAVY RAINFALL AND COULD IMPACT AREAS THAT HAVE ALREADY RECEIVED VERY HEAVY RAINFALL RANGING FROM 3 TO IN EXCESS OF 7 INCHES SINCE WEDNESDAY AFTERNOON. THE THUNDERSTORMS MAY LINGER THROUGH THE DAY THURSDAY. IAZ004>007-015>017-023>028-033>039-044>048-221215- /O.CON.KDMX.FF.A.0014.000000T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS... ROLFE...FONDA...GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION... BELMOND...HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK... GREENE...APLINGTON...ALLISON...DUMONT...WAVERLY...SAC CITY... LAKE VIEW...ODEBOLT...WALL LAKE...SCHALLER...EARLY... ROCKWELL CITY...MANSON...LAKE CITY...POMEROY...FORT DODGE... WEBSTER CITY...IOWA FALLS...ELDORA...ACKLEY...GRUNDY CENTER... REINBECK...CONRAD...DIKE...WELLSBURG...WATERLOO...CEDAR FALLS... DENISON...CARROLL...JEFFERSON...BOONE...AMES 1112 PM CDT WED SEP 21 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...STORY AND WEBSTER. IN NORTH CENTRAL IOWA... BUTLER...CERRO GORDO...FRANKLIN...HANCOCK...HUMBOLDT... KOSSUTH...WINNEBAGO...WORTH AND WRIGHT. IN NORTHEAST IOWA... BLACK HAWK AND BREMER. IN NORTHWEST IOWA...EMMET...PALO ALTO AND POCAHONTAS. IN WEST CENTRAL IOWA...CALHOUN...CARROLL... CRAWFORD...GREENE AND SAC. * THROUGH THURSDAY EVENING * HEAVY RAINFALL HAS ALREADY BEEN OBSERVED IN PORTIONS OF NORTHEASTERN IOWA WITH ADDITIONAL THUNDERSTORM ACTIVITY TO SPREAD SOUTHWARD ACROSS NORTHERN IOWA LATE TONIGHT. THIS COULD PRODUCE ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4 INCHES WITH LOCALLY HIGHER AMOUNTS POSSIBLE LATE TONIGHT THROUGH THURSDAY. IF THE HEAVIER RAIN FALLS OVER AREAS THAT HAVE ALREADY RECEIVED HEAVY RAIN WEDNESDAY EVENING...THE FLOODING WILL BE EXACERBATED AND COULD LEAD TO A DANGEROUS FLASH FLOOD SITUATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ MJB
260 WGUS63 KDMX 220902 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 402 AM CDT THU SEP 22 2016 ...FLASH FLOODING REMAIN POSSIBLE ACROSS THE NORTHERN HALF OF IOWA THORUGH TODAY... IAZ004>007-015>017-023>028-033>039-044>048-221715- /O.CON.KDMX.FF.A.0014.000000T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS... ROLFE...FONDA...GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION... BELMOND...HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK... GREENE...APLINGTON...ALLISON...DUMONT...WAVERLY...SAC CITY... LAKE VIEW...ODEBOLT...WALL LAKE...SCHALLER...EARLY... ROCKWELL CITY...MANSON...LAKE CITY...POMEROY...FORT DODGE... WEBSTER CITY...IOWA FALLS...ELDORA...ACKLEY...GRUNDY CENTER... REINBECK...CONRAD...DIKE...WELLSBURG...WATERLOO...CEDAR FALLS... DENISON...CARROLL...JEFFERSON...BOONE...AMES 402 AM CDT THU SEP 22 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...STORY AND WEBSTER. IN NORTH CENTRAL IOWA... BUTLER...CERRO GORDO...FRANKLIN...HANCOCK...HUMBOLDT... KOSSUTH...WINNEBAGO...WORTH AND WRIGHT. IN NORTHEAST IOWA... BLACK HAWK AND BREMER. IN NORTHWEST IOWA...EMMET...PALO ALTO AND POCAHONTAS. IN WEST CENTRAL IOWA...CALHOUN...CARROLL... CRAWFORD...GREENE AND SAC. * THROUGH THIS EVENING * HEAVY RAINFALL HAS ALREADY BEEN OBSERVED IN PORTIONS OF NORTHERN IOWA WITH ADDITIONAL THUNDERSTORM ACTIVITY EXPECTED TO SPREAD SOUTHWARD ACROSS NORTHERN AND CENTRAL IOWA THIS MORNING. THIS COULD PRODUCE ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4 INCHES WITH LOCALLY HIGHER AMOUNTS. IF THE HEAVIER RAIN FALLS OVER AREAS THAT HAVE ALREADY RECEIVED HEAVY RAIN...THE FLOODING WILL BE EXACERBATED AND COULD LEAD TO A DANGEROUS FLASH FLOOD SITUATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
941 WGUS63 KDMX 221626 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 1126 AM CDT THU SEP 22 2016 ...FLASH FLOODING REMAINS POSSIBLE ACROSS NORTHERN IOWA TODAY... IAZ004>007-015>017-023>028-033>039-044>048-222130- /O.CON.KDMX.FF.A.0014.000000T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS... ROLFE...FONDA...GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION... BELMOND...HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK... GREENE...APLINGTON...ALLISON...DUMONT...WAVERLY...SAC CITY... LAKE VIEW...ODEBOLT...WALL LAKE...SCHALLER...EARLY... ROCKWELL CITY...MANSON...LAKE CITY...POMEROY...FORT DODGE... WEBSTER CITY...IOWA FALLS...ELDORA...ACKLEY...GRUNDY CENTER... REINBECK...CONRAD...DIKE...WELLSBURG...WATERLOO...CEDAR FALLS... DENISON...CARROLL...JEFFERSON...BOONE...AMES 1126 AM CDT THU SEP 22 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...STORY AND WEBSTER. IN NORTH CENTRAL IOWA... BUTLER...CERRO GORDO...FRANKLIN...HANCOCK...HUMBOLDT... KOSSUTH...WINNEBAGO...WORTH AND WRIGHT. IN NORTHEAST IOWA... BLACK HAWK AND BREMER. IN NORTHWEST IOWA...EMMET...PALO ALTO AND POCAHONTAS. IN WEST CENTRAL IOWA...CALHOUN...CARROLL... CRAWFORD...GREENE AND SAC. * UNTIL 7 PM CDT THIS EVENING * THE HEAVY RAINS HAVE SUBSIDED ACROSS MUCH OF THE WATCH AREA... HOWEVER FLOODING AND THE POTENTIAL FOR ADDITIONAL RAPID RISES DUE TO RUNOFF STILL EXISTS OVER PORTIONS OF THE AREA. CERRO GORDO...BUTLER AND BREMER COUNTIES WOULD BE ESPECIALLY SUSCEPTIBLE. OTHER AREAS MAY ALSO SEE ADDITIONAL HEAVY RAINS LATER TODAY AND TONIGHT WITH SOME AREAS OF THE WATCH LIKELY NEEDING TO BE EXTENDED BEYOND 7PM LATER THIS AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ SMALL
957 WGUS63 KDMX 222055 FFADMX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 355 PM CDT THU SEP 22 2016 ...FLASH FLOODING AGAIN POSSIBLE OVER PORTIONS OF NORTHERN AND CENTRAL IOWA TONIGHT... A PORTION OF THE FLASH FLOOD WATCH OVER THE WEST IS BEING CANCELLED... HOWEVER THE THREAT FOR ADDITIONAL HEAVY RAINFALL AND FLASH FLOODING WILL DEVELOP AGAIN OVERNIGHT TONIGHT. THERE REMAINS UNCERTAINTY AS TO WHERE THE AXIS OF HEAVIEST RAIN WILL SET UP OVERNIGHT TONIGHT. IT IS POSSIBLE THAT SOME OF THE SAME AREAS THAT RECEIVED HEAVY RAIN WEDNESDAY NIGHT MAY AGAIN SEE ADDITIONAL MODERATE TO HEAVY RAINFALL TONIGHT. THOUGH AMOUNTS ARE NOT EXPECTED TO BE AS HIGH...ANY ADDITIONAL RAIN OVER WATER SOAKED AREAS WILL QUICKLY RESULT IN SIGNIFICANT PROBLEMS. ADDITIONALLY... THERE IS SUPPORT FOR A SLIGHT SOUTHERLY SHIFT IN THE EXPECTED HEAVY RAINFALL AXIS TONIGHT. THIS MAY KEEP THE HEAVIER OVERNIGHT RAINS FROM HIGHWAY 20 AND AREAS SOUTH TO HIGHWAY 30. AT THIS TIME GENERALLY 1 TO 2 INCH RAINFALL IS POSSIBLE WITH LOCALLY HIGHER AMOUNTS. IAZ033-044-045-222200- /O.CAN.KDMX.FF.A.0014.000000T0000Z-160923T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SAC-CRAWFORD-CARROLL- INCLUDING THE CITIES OF...SAC CITY...LAKE VIEW...ODEBOLT... WALL LAKE...SCHALLER...EARLY...DENISON...CARROLL 355 PM CDT THU SEP 22 2016 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR A PORTION OF WEST CENTRAL IOWA HAS BEEN CANCELLED. THE THREAT FOR ADDITIONAL HEAVY RAINFALL WILL SHIFT EAST OF THE AREA TONIGHT. $$ IAZ049-050-230500- /O.EXB.KDMX.FF.A.0014.000000T0000Z-160923T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MARSHALL-TAMA- INCLUDING THE CITIES OF...MARSHALLTOWN...TAMA...TOLEDO...TRAER... DYSART...GLADBROOK 355 PM CDT THU SEP 22 2016 ...FLASH FLOOD WATCH IN EFFECT THROUGH FRIDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS EXPANDED THE * FLASH FLOOD WATCH TO INCLUDE A PORTION OF CENTRAL IOWA... INCLUDING THE FOLLOWING AREAS...MARSHALL AND TAMA. * THROUGH FRIDAY AFTERNOON * AN AXIS OF HEAVY RAINFALL IS EXPECTED TO FORM AGAIN TONIGHT WITH THE POTENTIAL FOR 1 TO 2 INCHES OF RAINFALL OVERNIGHT. LOCALLY HIGHER AMOUNTS ARE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ IAZ004>007-015>017-023>028-034>039-046>048-230500- /O.EXT.KDMX.FF.A.0014.000000T0000Z-160923T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-CALHOUN-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-GREENE-BOONE-STORY- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS... ROLFE...FONDA...GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION... BELMOND...HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK... GREENE...APLINGTON...ALLISON...DUMONT...WAVERLY...ROCKWELL CITY... MANSON...LAKE CITY...POMEROY...FORT DODGE...WEBSTER CITY... IOWA FALLS...ELDORA...ACKLEY...GRUNDY CENTER...REINBECK... CONRAD...DIKE...WELLSBURG...WATERLOO...CEDAR FALLS...JEFFERSON... BOONE...AMES 355 PM CDT THU SEP 22 2016 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH FRIDAY AFTERNOON... THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...STORY AND WEBSTER. IN NORTH CENTRAL IOWA... BUTLER...CERRO GORDO...FRANKLIN...HANCOCK...HUMBOLDT... KOSSUTH...WINNEBAGO...WORTH AND WRIGHT. IN NORTHEAST IOWA... BLACK HAWK AND BREMER. IN NORTHWEST IOWA...EMMET...PALO ALTO AND POCAHONTAS. IN WEST CENTRAL IOWA...CALHOUN AND GREENE. * THROUGH FRIDAY AFTERNOON * AN AXIS OF HEAVY RAINFALL IS EXPECTED TO FORM AGAIN TONIGHT WITH THE POTENTIAL FOR 1 TO 2 INCHES OF RAINFALL OVERNIGHT. LOCALLY HIGHER AMOUNTS ARE POSSIBLE. THOUGH SOME UNCERTAINTY REMAINS...THE MORE LIKELY AREAS TO BE AFFECTED WITH THE HEAVIEST RAINFALL OVERNIGHT APPEAR TO BE FROM NEAR HIGHWAY 20 SOUTH TO NEAR HIGHWAY 30. * ADDITIONAL FLOODING AND THE POTENTIAL FOR ADDITIONAL RAPID RISES ON STREAMS AND RIVERS DUE TO RAINFALL AND RUNOFF STILL EXISTS OVER PORTIONS OF THE AREA THAT HAVE RECEIVED HEAVY RAIN SINCE LAST NIGHT. OTHER AREAS THAT SEE FIRST TIME HEAVY RAINS LATER TONIGHT WILL ALSO BE SUBJECT TO FLASH FLOODING AND WITH EVENTUAL RISES ON MAIN STEM RIVERS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ REV
748 WGUS63 KDMX 222324 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 624 PM CDT THU SEP 22 2016 ...FLASH FLOODING AGAIN POSSIBLE OVER PORTIONS OF NORTHERN AND CENTRAL IOWA TONIGHT... THERE REMAINS UNCERTAINTY AS TO WHERE THE AXIS OF HEAVIEST RAIN WILL SET UP OVERNIGHT TONIGHT. IT IS POSSIBLE THAT SOME OF THE SAME AREAS THAT RECEIVED HEAVY RAIN WEDNESDAY NIGHT MAY AGAIN SEE ADDITIONAL MODERATE TO HEAVY RAINFALL TONIGHT. THOUGH AMOUNTS ARE NOT EXPECTED TO BE AS HIGH...ANY ADDITIONAL RAIN OVER WATER SOAKED AREAS WILL QUICKLY RESULT IN SIGNIFICANT PROBLEMS. ADDITIONALLY... THERE IS SUPPORT FOR A SLIGHT SOUTHERLY SHIFT IN THE EXPECTED HEAVY RAINFALL AXIS TONIGHT. THIS MAY KEEP THE HEAVIER OVERNIGHT RAINS FROM HIGHWAY 20 AND AREAS SOUTH TO HIGHWAY 30. AT THIS TIME GENERALLY 1 TO 2 INCH RAINFALL IS POSSIBLE WITH LOCALLY HIGHER AMOUNTS. IAZ004>007-015>017-023>028-034>039-046>050-230730- /O.CON.KDMX.FF.A.0014.000000T0000Z-160923T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-CALHOUN-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-GREENE-BOONE-STORY-MARSHALL- TAMA- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS... ROLFE...FONDA...GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION... BELMOND...HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK... GREENE...APLINGTON...ALLISON...DUMONT...WAVERLY...ROCKWELL CITY... MANSON...LAKE CITY...POMEROY...FORT DODGE...WEBSTER CITY... IOWA FALLS...ELDORA...ACKLEY...GRUNDY CENTER...REINBECK... CONRAD...DIKE...WELLSBURG...WATERLOO...CEDAR FALLS...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TAMA...TOLEDO...TRAER...DYSART... GLADBROOK 624 PM CDT THU SEP 22 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY AFTERNOON... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...MARSHALL...STORY...TAMA AND WEBSTER. IN NORTH CENTRAL IOWA...BUTLER...CERRO GORDO...FRANKLIN... HANCOCK...HUMBOLDT...KOSSUTH...WINNEBAGO...WORTH AND WRIGHT. IN NORTHEAST IOWA...BLACK HAWK AND BREMER. IN NORTHWEST IOWA... EMMET...PALO ALTO AND POCAHONTAS. IN WEST CENTRAL IOWA... CALHOUN AND GREENE. * THROUGH FRIDAY AFTERNOON * AN AXIS OF HEAVY RAINFALL IS EXPECTED TO FORM AGAIN TONIGHT WITH THE POTENTIAL FOR 1 TO 2 INCHES OF RAINFALL OVERNIGHT. LOCALLY HIGHER AMOUNTS ARE POSSIBLE. THOUGH SOME UNCERTAINTY REMAINS...THE MORE LIKELY AREAS TO BE AFFECTED WITH THE HEAVIEST RAINFALL OVERNIGHT APPEAR TO BE FROM NEAR HIGHWAY 20 SOUTH TO NEAR HIGHWAY 30. * ADDITIONAL FLOODING AND THE POTENTIAL FOR ADDITIONAL RAPID RISES ON STREAMS AND RIVERS DUE TO RAINFALL AND RUNOFF STILL EXISTS OVER PORTIONS OF THE AREA THAT HAVE RECEIVED HEAVY RAIN SINCE LAST NIGHT. OTHER AREAS THAT SEE FIRST TIME HEAVY RAINS LATER TONIGHT WILL ALSO BE SUBJECT TO FLASH FLOODING AND WITH EVENTUAL RISES ON MAIN STEM RIVERS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ KS
873 WGUS63 KDMX 230229 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 929 PM CDT THU SEP 22 2016 ...FLASH FLOODING AGAIN POSSIBLE OVER PORTIONS OF NORTHERN AND CENTRAL IOWA TONIGHT... THERE REMAINS UNCERTAINTY AS TO WHERE THE AXIS OF HEAVIEST RAIN WILL SET UP OVERNIGHT TONIGHT. IT IS POSSIBLE THAT SOME OF THE SAME AREAS THAT RECEIVED HEAVY RAIN WEDNESDAY NIGHT MAY AGAIN SEE ADDITIONAL MODERATE TO HEAVY RAINFALL TONIGHT. THOUGH AMOUNTS ARE NOT EXPECTED TO BE AS HIGH...ANY ADDITIONAL RAIN OVER WATER SOAKED AREAS WILL QUICKLY RESULT IN SIGNIFICANT PROBLEMS. ADDITIONALLY...THERE IS SUPPORT FOR A SLIGHT SOUTHERLY SHIFT IN THE EXPECTED HEAVY RAINFALL AXIS TONIGHT. THIS MAY KEEP THE HEAVIER OVERNIGHT RAINS FROM HIGHWAY 20 AND AREAS SOUTH TO HIGHWAY 30. AT THIS TIME GENERALLY 1 TO 2 INCH RAINFALL IS POSSIBLE WITH LOCALLY HIGHER AMOUNTS. IAZ004>007-015>017-023>028-034>039-046>050-231030- /O.CON.KDMX.FF.A.0014.000000T0000Z-160923T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-CALHOUN-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-GREENE-BOONE-STORY-MARSHALL- TAMA- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS... ROLFE...FONDA...GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION... BELMOND...HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK... GREENE...APLINGTON...ALLISON...DUMONT...WAVERLY...ROCKWELL CITY... MANSON...LAKE CITY...POMEROY...FORT DODGE...WEBSTER CITY... IOWA FALLS...ELDORA...ACKLEY...GRUNDY CENTER...REINBECK... CONRAD...DIKE...WELLSBURG...WATERLOO...CEDAR FALLS...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TAMA...TOLEDO...TRAER...DYSART... GLADBROOK 929 PM CDT THU SEP 22 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY AFTERNOON... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...MARSHALL...STORY...TAMA AND WEBSTER. IN NORTH CENTRAL IOWA...BUTLER...CERRO GORDO...FRANKLIN... HANCOCK...HUMBOLDT...KOSSUTH...WINNEBAGO...WORTH AND WRIGHT. IN NORTHEAST IOWA...BLACK HAWK AND BREMER. IN NORTHWEST IOWA... EMMET...PALO ALTO AND POCAHONTAS. IN WEST CENTRAL IOWA... CALHOUN AND GREENE. * THROUGH FRIDAY AFTERNOON * AN AXIS OF HEAVY RAINFALL IS EXPECTED TO FORM AGAIN TONIGHT WITH THE POTENTIAL FOR 1 TO 2 INCHES OF RAINFALL OVERNIGHT. LOCALLY HIGHER AMOUNTS ARE POSSIBLE. THE MORE LIKELY AREAS TO BE AFFECTED WITH THE HEAVIEST RAINFALL OVERNIGHT APPEAR TO BE FROM NEAR HIGHWAY 20 SOUTH TO NEAR HIGHWAY 30. * ADDITIONAL FLOODING AND THE POTENTIAL FOR ADDITIONAL RAPID RISES ON STREAMS AND RIVERS DUE TO RAINFALL AND RUNOFF STILL EXISTS OVER PORTIONS OF THE AREA THAT HAVE RECEIVED HEAVY RAIN SINCE LAST NIGHT. OTHER AREAS THAT SEE FIRST TIME HEAVY RAINS LATER TONIGHT WILL ALSO BE SUBJECT TO FLASH FLOODING AND WITH EVENTUAL RISES ON MAIN STEM RIVERS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ MJB
907 WGUS63 KDMX 230900 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 400 AM CDT FRI SEP 23 2016 ...FLASH FLOOD POTENTIAL CONTINUES INTO TODAY... IAZ004>007-015>017-023>028-034>039-046>050-231700- /O.CON.KDMX.FF.A.0014.000000T0000Z-160923T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-CALHOUN-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-GREENE-BOONE-STORY-MARSHALL- TAMA- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS... ROLFE...FONDA...GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION... BELMOND...HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK... GREENE...APLINGTON...ALLISON...DUMONT...WAVERLY...ROCKWELL CITY... MANSON...LAKE CITY...POMEROY...FORT DODGE...WEBSTER CITY... IOWA FALLS...ELDORA...ACKLEY...GRUNDY CENTER...REINBECK... CONRAD...DIKE...WELLSBURG...WATERLOO...CEDAR FALLS...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TAMA...TOLEDO...TRAER...DYSART... GLADBROOK 400 AM CDT FRI SEP 23 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...MARSHALL...STORY...TAMA AND WEBSTER. IN NORTH CENTRAL IOWA...BUTLER...CERRO GORDO...FRANKLIN... HANCOCK...HUMBOLDT...KOSSUTH...WINNEBAGO...WORTH AND WRIGHT. IN NORTHEAST IOWA...BLACK HAWK AND BREMER. IN NORTHWEST IOWA... EMMET...PALO ALTO AND POCAHONTAS. IN WEST CENTRAL IOWA... CALHOUN AND GREENE. * UNTIL 1 PM CDT THIS AFTERNOON * THE POTENTIAL FOR ADDITIONAL HEAVY RAIN PERSIST THIS MORNING WITH RAINFALL RATES OF 1 TO 2 INCHES PER HOUR IN ANY STORMS. GIVEN THE RECENT RAINFALL ACROSS PORTIONS OF CENTRAL IOWA...THE THREAT FOR FLASH FLOODING REMAINS HIGH. HOWEVER...THE THREAT WILL BEGIN TO DIMINISH LATER TODAY AS THE FOCUS FOR STORM DEVELOPMENT SHIFTS NORTHWARD OUT OF THE STATE. * AREAS THAT HAVE ALREADY SEEN VERY HEAVY RAINS MAY SEE FLOODING EXACERBATED BY ADDITIONAL RAINFALL. IN ADDITION...HIGHER FLOOD CRESTS MAY OCCUR ON AREA RIVERS WITH ANY HEAVY RAINS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
327 WGUS63 KDMX 231425 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 925 AM CDT FRI SEP 23 2016 ...FLASH FLOOD POTENTIAL CONTINUES THROUGH THIS MORNING... IAZ004>007-015>017-023>028-034>039-046>050-231800- /O.CON.KDMX.FF.A.0014.000000T0000Z-160923T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-CALHOUN-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-GREENE-BOONE-STORY-MARSHALL- TAMA- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS... ROLFE...FONDA...GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION... BELMOND...HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK... GREENE...APLINGTON...ALLISON...DUMONT...WAVERLY...ROCKWELL CITY... MANSON...LAKE CITY...POMEROY...FORT DODGE...WEBSTER CITY... IOWA FALLS...ELDORA...ACKLEY...GRUNDY CENTER...REINBECK... CONRAD...DIKE...WELLSBURG...WATERLOO...CEDAR FALLS...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TAMA...TOLEDO...TRAER...DYSART... GLADBROOK 925 AM CDT FRI SEP 23 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL IOWA...BOONE...GRUNDY... HAMILTON...HARDIN...MARSHALL...STORY...TAMA AND WEBSTER. IN NORTH CENTRAL IOWA...BUTLER...CERRO GORDO...FRANKLIN... HANCOCK...HUMBOLDT...KOSSUTH...WINNEBAGO...WORTH AND WRIGHT. IN NORTHEAST IOWA...BLACK HAWK AND BREMER. IN NORTHWEST IOWA... EMMET...PALO ALTO AND POCAHONTAS. IN WEST CENTRAL IOWA... CALHOUN AND GREENE. * UNTIL 1 PM CDT THIS AFTERNOON * THE POTENTIAL FOR ADDITIONAL HEAVY RAIN PERSIST THIS MORNING WITH RAINFALL RATES OF 1 TO 2 INCHES PER HOUR IN ANY STORMS. GIVEN THE RECENT RAINFALL ACROSS PORTIONS OF CENTRAL IOWA... THE THREAT FOR FLASH FLOODING REMAINS HIGH THROUGH THE MORNING BUT WILL BEGIN TO DIMINISH LATER TODAY AS THE FOCUS FOR STORM DEVELOPMENT SHIFTS NORTHWARD. * AREAS THAT HAVE ALREADY SEEN VERY HEAVY RAINS MAY SEE FLOODING EXACERBATED BY ADDITIONAL RAINFALL. IN ADDITION...HIGHER FLOOD CRESTS MAY OCCUR ON AREA RIVERS WITH ANY HEAVY RAINS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ FAB
474 WGUS63 KDMX 231803 FFADMX FLOOD WATCH NATIONAL WEATHER SERVICE DES MOINES IA 103 PM CDT FRI SEP 23 2016 IAZ004>007-015>017-023>028-034>039-046>050-231915- /O.EXP.KDMX.FF.A.0014.000000T0000Z-160923T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-CALHOUN-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-GREENE-BOONE-STORY-MARSHALL- TAMA- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS... ROLFE...FONDA...GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION... BELMOND...HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK... GREENE...APLINGTON...ALLISON...DUMONT...WAVERLY...ROCKWELL CITY... MANSON...LAKE CITY...POMEROY...FORT DODGE...WEBSTER CITY... IOWA FALLS...ELDORA...ACKLEY...GRUNDY CENTER...REINBECK... CONRAD...DIKE...WELLSBURG...WATERLOO...CEDAR FALLS...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TAMA...TOLEDO...TRAER...DYSART... GLADBROOK 103 PM CDT FRI SEP 23 2016 ...FLASH FLOOD WATCH HAS EXPIRED... THE FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL IOWA...NORTH CENTRAL IOWA...NORTHEAST IOWA...NORTHWEST IOWA AND WEST CENTRAL IOWA HAS EXPIRED. ANY REMAINING SHOWERS ARE DISSIPATING AS THEY MOVE TO THE EAST. THE THREAT OF FLASH FLOODING HAS ENDED AND THE WATCH WILL BE ALLOWED TO EXPIRE. $$ FAB
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Des Moines, IA wrote its last area forecast discussion before this flash flood watch went out at Sep 20, 3:31 PM CDT, 1 minute earlier.
Area forecast discussion, Sep 20, 3:31 PM CDT, 1 minute before
AREA FORECAST DISCUSSION National Weather Service Des Moines IA 331 PM CDT Tue Sep 20 2016 .SHORT TERM.../This evening through Wednesday/ Issued at 326 PM CDT Tue Sep 20 2016 Through the day today high pressure continued to slide eastward as a surface low over southern SD moved towards the area. With the tightening surface gradient, winds were gusty across the west/northwest, boosting highs beyond original guidance into the upper 80s. Additionally, showers pushed across southern MN/northern IA during the early afternoon associated with a mid-level theta-e push. Main concern through rest of period will be whether or not storms that develop tonight affect northern/northeast CWA. Guidance continues to peg significant push of theta-e advection through the low and mid levels as moisture returns in earnest. While a stationary surface boundary/wind shift exists over southern MN, it will not be the impetus for initiation. Main warm front/moisture discontinuity further south across central IA will continue its push northward, though has been slower than originally anticipated. With boost from expected ~40kt LLJ, widespread initiation north of Iowa likely to occur after 03z this evening. Anticipate convection to eventually turn SE and ride instability gradient, possibly bringing northern/northeast CWA into play. Potential for severe weather greatest to the north, however with MUCAPE around 2000-3000 J/kg and 0-6km shear around 30-40 kts, cannot rule out isolated elevated hailer early if convection initiates further south and damaging wind potential as storms conglomerate. Heavy rain will be primary threat with PWats approaching 1.75 inches or more and great low level moisture transport into region through the overnight hours. However, do expect a more progressive nature to storms as evening progresses, reducing flooding concerns. .LONG TERM.../Wednesday night through Tuesday/ Issued at 326 PM CDT Tue Sep 20 2016 Heavy rainfall potential the main concern through the period...though heat and humidity likely to be a short concern for the southern counties tomorrow. Models continue to advertise potential for repeated rainfall across the north possibly late tonight...and more likely tomorrow and continuing into the overnight hours Wednesday night...lingering into Thursday. Though front passed south of the region yesterday...wave already developing over south Central South Dakota with very moist airmass south of a stationary front in northern Missouri. Aloft...several factors will combine for a quick return of moisture to the Midwest and Iowa. A ridge of high pressure is parked over the lower Mississippi River Valley with a pronounced fetch of southwest flow from Texas northeast to Minnesota. Also...remnants of Tropical Storm Paine is expected to be caught up in the flow over the next 1 to 2 days and help to fuel the heavy rainfall potential...especially for tomorrow evening through Friday. There will also be a semi-persistent warm frontal boundary that sets up over northern Iowa to southern Minnesota. Some uncertainty still exists as to where the boundary will set up...with convection possibly farther south into Iowa through the period. None the less the better potential for heavy rainfall and flash flooding will remain over the northern half of our forecast area through the period. Scattered thunderstorms will likely continue into the morning hours tomorrow north...then redevelop in the afternoon across the north closer to the boundary and just north of the 10C cap at H700. By evening another stronger push of Thetae advection and increasing low level jet to 40kts by 06z as moisture from old TS Paine gets ingested into the persistent southwest flow aloft. The threat for heavy rainfall should be maximized during the 00-12z period Thursday with continued scattered thunderstorms during the day on Thursday. Temperatures will continue warm Wednesday with highs in the upper 70s north and upper 80s south...cooling slightly Thursday. The nearly stationary boundary will again lift north Thursday night into Friday with lesser chances for thunderstorms Friday while temperatures again heat up. With the mean trough west of the region until Saturday night...another period of wet weather is anticipated Saturday night into Sunday with the potential for additional longer duration rainfall due to another tropical connection. Finally by Monday into Tuesday dry weather briefly returns. && .AVIATION.../For the 18Z TAFS through 18Z Wednesday afternoon/ Issued at 1216 PM CDT Tue Sep 20 2016 VFR expected through TAF period with a fair shot at some MVFR windows at KMCW/KALO with VCTS in the TAFs for expected convection north of the area tonight creeping southward. Outside shot KFOD sees some as well. Otherwise, winds become concern tomorrow with sustained in excess of 12 kts gusting to around 20kts or more. && .HYDROLOGY... Issued at 326 PM CDT Tue Sep 20 2016 Heavy rainfall is expected over portions of southern Minnesota and northern Iowa through Thursday afternoon...with additional showers and thunderstorms possible Friday...and again Saturday night through Sunday. Current river outlooks suggest that portions of the Winnebago River...Cedar River and its tributaries may experience some flooding by Friday and remain in flood into the weekend. With the potential for repeated rainfall from late tonight across the north and from Wednesday evening through Thursday afternoon for most of northern Iowa...and rainfall amounts of several inches possible over far northern Iowa...flash flooding and areal flooding will be possible for areas generally north of Highway 20 tonight and along and north of portions of Highway 30 Wednesday evening through Thursday evening. && .DMX WATCHES/WARNINGS/ADVISORIES... Flash Flood Watch from 1 AM CDT Wednesday through Thursday evening for IAZ004>007-015>017. Flash Flood Watch from Wednesday evening through Thursday evening for IAZ023>028-033>039-044>048. && SHORT TERM...Curtis LONG TERM...REV AVIATION...Curtis HYDROLOGY...REV
Hazardous weather outlook, Sep 20, 5:07 AM CDT, 10 hours 25 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 507 AM CDT TUE SEP 20 2016 IAZ004>007-015>017-023>028-033>039-044>050-057>061-070>073-081- 082-092-211015- EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS- ADAIR-MADISON-WARREN-ADAMS-UNION-TAYLOR- 507 AM CDT TUE SEP 20 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE FORECAST LATE THIS EVENING INTO THE OVERNIGHT HOURS...MAINLY NORTH OF HIGHWAY 20. HEAVY RAIN IS LIKELY AND ISOLATED SEVERE STORMS ARE POSSIBLE WITH LARGE HAIL AND DAMAGING WIND BEING THE THREATS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A MARGINAL RISK FOR SEVERE STORMS IS FORECAST WEDNESDAY AFTERNOON INTO EARLY THURSDAY. LARGE HAIL AND DAMAGING WINDS LOOK TO BE THE PRIMARY SEVERE THREAT. HEAVY RAIN IS ALSO LIKELY AND MAY LEAD TO ISOLATED FLASH FLOODING. PERIODIC THUNDERSTORMS ARE POSSIBLE THROUGH THE REMAINDER OF THE WEEK AND INTO THE WEEKEND. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAYBE NEEDED TONIGHT AND WEDNESDAY. IAZ062-074-075-083>086-093>097-211015- POWESHIEK-MARION-MAHASKA-CLARKE-LUCAS-MONROE-WAPELLO-RINGGOLD- DECATUR-WAYNE-APPANOOSE-DAVIS- 507 AM CDT TUE SEP 20 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A FEW STORMS ARE POSSIBLE WEDNESDAY NIGHT INTO THURSDAY. THERE IS A LOW PROBABILITY FOR SEVERE STORMS. LOCALLY HEAVY RAIN IS POSSIBLE. PERIODIC THUNDERSTORMS ARE EXPECTED THROUGH THE REMAINDER OF THE WEEK AND INTO THE WEEKEND. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. KLP
Nearby
Flash Flood Watches in Iowa, 2016Every flash flood watch in 2016
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.