Alert archive / Mississippi / Flash Flood Warnings in 1999
Flash Flood Warning 3, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Mar 13, 1999, 2:16 PM CST for Pike County, Mississippi. It was in force for 74 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 13, 1999, 2:16 PM CST (20:16 UTC)
- Expired
- Mar 13, 1999, 3:30 PM CST
- In force
- 74 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Pike County, MS
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 8.3 hours before the alert went out and 123 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
- 553 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 514 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 406 m²/s²
- 0-3 km storm-relative helicity
- 553 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KNEW 132015 FFWNEW MSC113-132130- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 216 PM CST SAT MAR 13 1999 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS LA HAS EXTENDED A... * FLASH FLOOD WARNING FOR - PIKE COUNTY IN SOUTHERN MISSISSIPPI * UNTIL 330 PM CST * AT 210 PM CST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED MODERATE RAINFALL ACROSS PIKE COUNTY WITH 2 INCHES OF RAINFALL ESTIMATED BY RADAR FROM 100 TO 200 PM CST. ANOTHER AREA OF HEAVY RAINFALL WILL BE MOVING INTO THE COUNTY FROM ST HELENA PARISH BY 230 PM. AN ADDITIONAL 2 TO 3 INCHES OF RAINFALL IS LIKELY BY 500 PM. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROAD. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN THE RISING WATER SHOULD BE ABANDONED QUICKLY. IF YOU OBSERVE RISING WATER MOVE TO HIGHER GROUND IMMEDIATELY.
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Mar 13, 10:05 AM CST, 4 hours 11 minutes before
LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-132301- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 1005 AM CST SAT MAR 13 1999 ...A TORNADO WATCH IS IN EFFECT FOR SOUTHEAST LOUISIANA AND SOUTH MISSISSIPPI UNTIL 4 PM CST... ...A FLASH FLOOD WATCH IS IN EFFECT FOR SOUTHEAST LOUISIANA AND SOUTH MISSISSIPPI FOR TODAY... A LARGE SLOW MOVING UPPER LEVEL DISTURBANCE AND COLD FRONT WILL MOVE ACROSS SOUTHEAST LOUISIANA AND SOUTH MISSISSIPPI THIS AFTERNOON. THE UPPER LEVEL DISTURBANCE IS PROVIDING A VERY FAVORABLE SETUP FOR SEVERE THUNDERSTORMS AND HEAVY RAIN TODAY. IN ADDITION...BECAUSE THE ATMOSPHERE IS SO MOIST AND UNSTABLE...AND THE LOW AND MIDDLE LEVEL WINDS PATTERN ARE FAVORABLE FOR SEVERE THUNDERSTORMS. SOME OF THESE THUNDERSTORMS COULD PRODUCE STRONG WINDS DAMAGING WINDS... LARGE HAIL AND TORNADOES. 2 TO 3 OF RAIN COULD FALL WITHIN A FEW HOURS PRODUCING SOME FLASH FLOODING OF HIGHWAYS. PEOPLE ARE URGED TO FOLLOW THE WEATHER CLOSELY TODAY AND BE PREPARED TO TAKE QUICK PROTECTIVE ACTION IF A SEVERE THUNDERSTORM...TORNADO OR FLASH FLOOD WARNING IS POSTED FOR THEIR PARISH OR COUNTY. FOR MORE WEATHER INFORMATION...PLEASE VISIT OUR HOMEPAGE AT HTTP://WWW.SRH.NOAA.GOV/LIX (ALL LOWER CASE).
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 13, 9:38 AM CST | Severe Thunderstorm Warning | LIX | Wilkinson | 32 min |
| Mar 13, 9:58 AM CST | Severe Thunderstorm Warning | LIX | Amite | 47 min |
| Mar 13, 10:13 AM CST | Tornado Warning | LIX | Amite | 37 min |
| Mar 13, 11:31 AM CST | Severe Thunderstorm Warning | LIX | Pike | 34 min |
| Mar 13, 11:37 AM CST | Severe Thunderstorm Warning | LIX | Walthall | 33 min |
| Mar 13, 12:22 PM CST | Flash Flood Warning | LIX | Pike | 2 hr |
Nearby
Flash Flood Warnings in Mississippi, 1999Every flash flood warning in 1999
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.