Alert archive / Tennessee / Flash Flood Warnings in 2012
Flash Flood Warning 5, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Mar 16, 2012, 11:00 AM CDT for Shelby County, Tennessee; Crittenden County, Arkansas. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 16, 2012, 11:00 AM CDT (16:00 UTC)
- Expired
- Mar 16, 2012, 1:00 PM CDT
- In force
- 2 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Crittenden County, AR, Shelby County, TN
The radar
The Memphis radar (KNQA), 22 km from the middle of the area, began a volume at 16:00 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
Little Rock, AR (KLZK), launched 12:00Z, 4.0 hours before the alert went out and 37 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
- 1631 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 718 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
069 WGUS54 KMEG 161600 FFWMEG ARC035-TNC157-161800- /O.NEW.KMEG.FF.W.0005.120316T1600Z-120316T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MEMPHIS TN 1100 AM CDT FRI MAR 16 2012 THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL CRITTENDEN COUNTY IN EASTERN ARKANSAS... SHELBY COUNTY IN SOUTHWEST TENNESSEE... * UNTIL 100 PM CDT * AT 1100 AM CDT...DOPPLER RADAR ESTIMATES 2 TO 3 INCHES OF RAINFALL HAS OCCURRED OVER THE PAST 3 HOURS. SHOWERS AND THUNDERSTORMS WILL PRODUCE AN ADDITIONAL 1 TO 3 INCHES OF RAIN OVER THE NEXT 2 HOURS. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MARION... WEST MEMPHIS...BARTLETT...COLLIERVILLE...GERMANTOWN...MIDTOWN MEMPHIS...MILLINGTON...CORDOVA...MEEMAN SHELBY FOREST STATE PARK AND T O FULLER STATE PARK. THIS WARNING ALSO INCLUDES AREAS NEAR BRANDYWINE LAKE...CORONEE LAKE AND WAPANOCCA LAKE. PRECAUTIONARY/PREPAREDNESS ACTIONS... .MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. .STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION. TO REPORT FLASH FLOODING ONLY...CALL 1 800 4 3 2 0 8 7 5. && LAT...LON 3504 8965 3503 9038 3532 9042 3537 8965 $$
2 follow-up statements
824 WGUS74 KMEG 161712 FFSMEG FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 1212 PM CDT FRI MAR 16 2012 ARC035-TNC157-161800- /O.CON.KMEG.FF.W.0005.000000T0000Z-120316T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CRITTENDEN AR-SHELBY TN- 1212 PM CDT FRI MAR 16 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 PM CDT FOR SHELBY AND CENTRAL CRITTENDEN COUNTIES... AT 1211 PM CDT...DOPPLER RADAR ESTIMATES 2 TO 3 INCHES OF RAINFALL HAS OCCURRED OVER THE PAST 4 HOURS. ADDITIONAL THUNDERSTORMS DEVELOPING TO THE WEST WILL MOVE EAST OVER THE WARNED AREA AND PRODUCE AN ADDITIONAL 1 TO 2 INCHES OF RAIN OVER THE NEXT HOUR. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MARION...WEST MEMPHIS...BARTLETT...COLLIERVILLE...GERMANTOWN...MIDTOWN MEMPHIS... MILLINGTON...CORDOVA...MEEMAN SHELBY FOREST STATE PARK AND T O FULLER STATE PARK. PRECAUTIONARY/PREPAREDNESS ACTIONS... .MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. .STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION. TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5. && LAT...LON 3504 8965 3503 9038 3532 9042 3537 8965 $$
377 WGUS74 KMEG 161807 FFSMEG FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 107 PM CDT FRI MAR 16 2012 ARC035-TNC157-161817- /O.EXP.KMEG.FF.W.0005.000000T0000Z-120316T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CRITTENDEN AR-SHELBY TN- 107 PM CDT FRI MAR 16 2012 ...THE FLASH FLOOD WARNING HAS EXPIRED FOR SHELBY AND CENTRAL CRITTENDEN COUNTIES... THE HEAVY RAINFALL WHICH PROMPTED THE WARNING HAS DIMINISHED ACROSS THE WARNED AREA. THUS THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. .STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION. TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5. LAT...LON 3504 8965 3503 9038 3532 9042 3537 8965 $$
The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 16, 1:51 AM CDT | Special Weather Statement | MEG | Lake | 39 min |
| Mar 16, 4:07 AM CDT | Special Weather Statement | MEG | Gibson | 23 min |
| Mar 16, 8:53 AM CDT | Flash Flood Warning | MEG | Fayette, Hardeman, Shelby | 2 hr |
| Mar 16, 2:14 AM CDT | Flash Flood Warning | MEG | Clay | 3 hr |
| Mar 16, 5:59 PM CDT | River Flood Warning | MEG | Clay, Greene | 40 hr |
Nearby
Flash Flood Warnings in Tennessee, 2012Flash Flood Warnings in Arkansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.