Alert archive / New Mexico / Flash Flood Warnings in 1999
Flash Flood Warning 10, NWS Midland/Odessa, TX
NWS Midland/Odessa, TX issued this flash flood warning at Apr 30, 1999, 5:52 PM MDT for Lea County, New Mexico. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Apr 30, 1999, 5:52 PM MDT (23:52 UTC)
- Expired
- Apr 30, 1999, 9:45 PM MDT
- In force
- 4 hr
- Issued by
- NWS Midland/Odessa, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Lea County, NM
The radar
The Midland/Odessa radar (KMAF), 121 km from the middle of the area, began a volume at 23:51 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
Midland Regional, TX (KMAF), launched 12:00Z, 11.9 hours before the alert went out and 119 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
- 21 J/kg
- Mixed-layer CIN
- -289 J/kg
- Mixed-layer LCL
- 1062 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 216 m²/s²
- 0-3 km storm-relative helicity
- 296 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMAF 302359 FFWMAF NMC025-010345- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MIDLAND-ODESSA TX 552 PM MDT FRI APR 30 1999 THE MIDLAND-ODESSA NATIONAL WEATHER SERVICE OFFICE HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHERN LEA COUNTY IN NEW MEXICO * UNTIL 945 PM MDT * AT 555 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED 3-4 INCHES OF RAIN HAS FALLEN ACROSS SECTIONS OF SOUTHERN LEA COUNTY. THE CIVIL DEFENSE DIRECTOR IN HOBBS REPORTED SEVERAL ROADS CLOSED IN SOUTHEASTERN LEA COUNTY BETWEEN HOBBS AND EUNICE. TWO FEET OF WATER WAS OVER THE ROAD BETWEEN EUNICE AND HOBBS ON STATE HIGHWAY 18. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. LAT...LON 3212 10362 3206 10317 3250 10308 3250 10358 & BF
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.
NWS Midland/Odessa, TX wrote its last area forecast discussion before this flash flood warning went out at Apr 30, 1:00 PM MDT, 4 hours 52 minutes earlier.
Area forecast discussion, Apr 30, 1:00 PM MDT, 4 hours 52 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIDLAND TX 200 PM CDT FRI APR 30 1999 SIGNIFICANT CONVECTION CONTINUING THIS AFTERNOON. AIRMASS ACROSS THE AREA REMAINS MOIST AND UNSTABLE...AND A SERIES OF SHORTWAVES ROTATING AROUND THE UPPER LOW OVER AZ WILL LIKELY KEEP CONVECTION ACTIVE ACROSS THE AREA THROUGH THIS EVENING. AXIS OF THE THETA- E RIDGE ACROSS THE AREA REMAINS ROUGHLY ACROSS THE MIDDLE SECTION OF THE CWA...AND PROGS GRADUALLY SHIFT THIS INTO THE EASTERN CWA BY TOMORROW AFTERNOON. UPPER LEVEL DIFLUENCE ACROSS THE CWA WAS QUITE IMPRESSIVE THIS MORNING. AREA OF BEST DIFLUENCE WILL PROPOGATE INTO NORTHERN TX AND SOUTHERN OK LATE TONIGHT. DRYLINE TO THE WEST HAS BEEN ADVANCING VERY SLOWLY THROUGHOUT THE DAY...WITH STORMS FIRING UP ALONG ITS BOUNDARY CONTINUOUSLY AND TRAINING NWD AND NEWD. LOOKS AS IF A NARROW DRY SLOT OVR FAR WEST TX WILL BEGIN ROTATING INTO THE AREA LATER TONIGHT...AFFECTING PORTIONS OF THE CWA UNTIL EARLY MORNING. WILL STILL KEEP SCT POPS IN AREA OVERNIGHT WITH THE MOIST AIRMASS AND PVA ALOFT...BUT WILL NEED TO KEEP THIS IN MIND. MODELS SLOWLY ADVANCE THE LOW AND BEGIN LIFTING IT OUT LATE TOMORROW. MODELS ALWAYS TRY TO LIFT THESE UPPER LOWS OUT TOO QUICKLY...SO I WILL TAKE THIS INTO ACCOUNT WITH THE FORECAST. BY MIDDAY TOMORROW...IT LOOKS AS IF THE UPPER LEVEL FLOW WILL BECOME MORE SWLY WITH THE APPROACH OF THE LOW...AND THIS SHOULD HELP THE DRYLINE PUSH FURTHER EWD. WITH THE MOIST AIRMASS AND UPPER LEVEL DISTURBANCES PROPOGATING AROUND THE LOW...WILL NEED TO KEEP POPS UP FOR TOMORROW. TOMORROW NIGHT THE LOW WILL STILL BE IN THE VICINITY... AND WILL KEEP POPS IN AS WELL. THE MAIN CHALLENGE WILL BE WHAT TO DO WITH SUNDAY. MODELS LIFT LOW AND ASSOCIATED VORT ENERGY NWD AWAY FROM THE AREA...AND DRIER SFC AIR IS PROGGED TO OVERRUN THE AREA. HOWEVER...CONSIDERING THE FACT THAT THE LOW WILL PROBABLY MOVE OUT MORE SLOWLY...WILL HAVE TO KEEP SOME CLOUDS AROUND DURING THE DAY...AND POSSIBLY EVEN SOME LINGERING MORNING POPS. LBB...WORKZONES FORTHCOMING...WILL BE A FEW MINUTES LATE. PRELIM TEMPS/POPS MAF 57/75/54/79 6542 CNM 51/75/47/80 543- MRF 45/74/41/78 222- P07 60/78/59/79 3431 DJK
The office that day
Everything else NWS Midland/Odessa, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 6:35 PM MDT | Severe Thunderstorm Warning | MAF | Eddy | 40 min |
| Apr 29, 7:11 PM MDT | Severe Thunderstorm Warning | MAF | Eddy | 49 min |
| Apr 29, 7:57 PM MDT | Severe Thunderstorm Warning | MAF | Eddy | 33 min |
| Apr 29, 10:19 PM MDT | Severe Thunderstorm Warning | MAF | Eddy | 26 min |
| Apr 30, 11:14 AM MDT | Severe Thunderstorm Warning | MAF | Eddy | 46 min |
| Apr 30, 12:45 PM MDT | Severe Thunderstorm Warning | MAF | Lea | 45 min |
| Apr 30, 1:33 PM MDT | Severe Thunderstorm Warning | MAF | Lea | 42 min |
| Apr 30, 2:10 PM MDT | Severe Thunderstorm Warning | MAF | Lea | 40 min |
| Apr 30, 2:29 PM MDT | Tornado Warning | MAF | Lea | 31 min |
| Apr 30, 2:53 PM MDT | Tornado Warning | MAF | Lea | 37 min |
| Apr 30, 3:11 PM MDT | Flash Flood Warning | MAF | Lea | 3 hr |
| Apr 30, 3:27 PM MDT | Tornado Warning | MAF | Lea | 48 min |
| Apr 30, 3:55 PM MDT | Severe Thunderstorm Warning | MAF | Eddy | 45 min |
| Apr 30, 4:12 PM MDT | Tornado Warning | MAF | Lea | 33 min |
Nearby
Flash Flood Warnings in New Mexico, 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; radar from the NEXRAD Level II archive.