Alert archive / Florida / Flash Flood Warnings in 2012
Flash Flood Warning 9, NWS Miami, FL
NWS Miami, FL issued this flash flood warning at Dec 11, 2012, 8:11 PM EST for Palm Beach County, Florida. It was in force for 6 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Dec 11, 2012, 8:11 PM EST (01:11 UTC)
- Expired
- Dec 12, 2012, 2:00 AM EST
- In force
- 6 hr
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
- Flood severity
- None
County Palm Beach County, FL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 11, 9:29 PM EST | FLASH FLOOD | Jupiter, FL | UNOFFICAL MEASURED RAINFALL TOTALS MEASURED 3 TO 5 INCHES IN THE JUNO BEACH AREA TO 6 TO 10 INCHES IN JUPITER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Miami, FL (KMFL), launched 00:00Z, 1.2 hours before the alert went out and 125 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
- 2557 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 556 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
088 WGUS52 KMFL 120111 FFWMFL FLC099-120700- /O.NEW.KMFL.FF.W.0009.121212T0111Z-121212T0700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MIAMI FL 811 PM EST TUE DEC 11 2012 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHEASTERN PALM BEACH COUNTY IN SOUTHEAST FLORIDA... * UNTIL 200 AM EST * AT 809 PM EST...NATIONAL WEATHER SERVICE RADAR AND LOCAL LAW ENFORCEMENT OFFICIALS REPORTED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RADAR ESTIMATES THAT IN EXCESS OF SEVEN INCHES OF RAINFALL HAS OCCURRED IN THE JUPITER AREA WITH THE JUPITER POLICE DEPARTMENT REPORTING THAT MANY HOMES HAVE WATER INTRUSION. * RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... JUPITER. PRECAUTIONARY/PREPAREDNESS ACTIONS... ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE WARNED AREA. TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI. && LAT...LON 2695 8008 2692 8007 2691 8011 2694 8012 $$ KOB
3 follow-up statements
644 WGUS72 KMFL 120350 FFSMFL FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 1050 PM EST TUE DEC 11 2012 FLC099-120700- /O.CON.KMFL.FF.W.0009.000000T0000Z-121212T0700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PALM BEACH FL- 1050 PM EST TUE DEC 11 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 AM EST FOR NORTHEASTERN PALM BEACH COUNTY... AT 1046 PM EST...A NATIONAL WEATHER SERVICE EMPLOYEE REPORTED UNOFFICIAL RAINFALL TOTALS OF 6 TO 10 INCHES IN THE JUPITER AREA BETWEEN 5 PM EST AND 8 PM EST. ALTHOUGH THE HEAVY RAINFALL HAS ENDED, SCATTERED SHOWERS STILL PERSIST AND ANY ADDITIONAL AMOUNTS WILL ONLY AGGRAVATE THE SITUATION. THEREFORE, THE FLASH FLOOD WARNING CONTINUES IN EFFECT UNTIL 2 AM EST. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. && LAT...LON 2695 8008 2692 8007 2691 8011 2694 8012 $$ KOB
058 WGUS72 KMFL 120630 FFSMFL FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 130 AM EST WED DEC 12 2012 FLC099-120700- /O.CON.KMFL.FF.W.0009.000000T0000Z-121212T0700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PALM BEACH FL- 130 AM EST WED DEC 12 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 AM EST FOR NORTHEASTERN PALM BEACH COUNTY... AT 122 AM EST...LOCAL LAW ENFORCEMENT OFFICIALS IN JUPITER INDICATED ONGOING FLOODING ACROSS PORTIONS OF THE JUPITER METRO AREA. ALTHOUGH THERE ARE NOT ANY SHOWERS CURRENTLY ACROSS THE WARNING AREA RESIDENTS AND DRIVERS IN THE JUPITER METRO AREA NEED TO EXERCISE EXTREME CAUTION DUE TO FLOODING FROM HEAVY RAINS TUESDAY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. && LAT...LON 2695 8008 2692 8007 2691 8011 2694 8012 $$ 60
935 WGUS72 KMFL 120656 FFSMFL FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 156 AM EST WED DEC 12 2012 FLC099-120704- /O.EXP.KMFL.FF.W.0009.000000T0000Z-121212T0700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PALM BEACH FL- 156 AM EST WED DEC 12 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 200 AM EST FOR NORTHEASTERN PALM BEACH COUNTY... AN AREAL FLOOD WARNING HAS BEEN ISSUED TO REPLACE THE FLASH FLOOD WARNING. LAT...LON 2695 8008 2692 8007 2691 8011 2694 8012 $$ 60
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 11, 8:00 PM EST | Areal Flood Advisory | MFL | Palm Beach | 2 hr |
| Dec 12, 1:19 AM EST | Special Weather Statement | MFL | Collier | 41 min |
| Dec 12, 1:52 AM EST | Areal Flood Warning | MFL | Palm Beach | 10 hr |
Nearby
Flash Flood Warnings in Florida, 2012Every flash flood warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.