Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 121, NWS Midland/Odessa, TX
NWS Midland/Odessa, TX issued this severe thunderstorm warning at Jul 12, 1998, 4:03 PM CDT for Dawson County, Texas. It was in force for 32 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 12, 1998, 4:03 PM CDT (21:03 UTC)
- Expired
- Jul 12, 1998, 4:35 PM CDT
- In force
- 32 min
- Issued by
- NWS Midland/Odessa, TX
- Area
- Whole counties
County Dawson County, TX
The radar
The Midland/Odessa radar (KMAF), 92 km from the middle of the area, began a volume at 21:06 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 12, 4:15 PM CDT | Hail 1.25 | Lamesa, TX | A hailstorm hit a cotton field and destroyed over 300 acres of the crop. |
| Jul 12, 4:20 PM CDT | Thunderstorm Wind | Lamesa, TX | The same storm that hailed on the cotton took the roof off a barn and knocked down 6 utility poles. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Midland Regional, TX (KMAF), launched 12:00Z, 9.1 hours before the alert went out and 91 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
- 123 J/kg
- Mixed-layer CIN
- -425 J/kg
- Mixed-layer LCL
- 2695 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
344 WUUS1 KMAF 122105 RRA SVRMAF TXC115-122135- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIDLAND TX 403 PM CDT SUN JUL 12 1998 THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN DAWSON COUNTY IN NORTHWESTERN TEXAS * UNTIL 435 PM CDT * AT 401 PM CDT... MIDLAND DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM IN THE VICINITY OF LAMESA MOVING SOUTHEAST AT 10 MPH. * SOME LOCATIONS IN THE PATH OF THIS STORM ARE... UNION... FRIENDSHIP...AND LAMESA. DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS JCP/EMP
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jul 12, 2:09 PM CDT, 1 hour 54 minutes earlier.
Area forecast discussion, Jul 12, 2:09 PM CDT, 1 hour 54 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIDLAND TX 209 PM CDT (109 PM MDT) SUN JUL 12 1998 DEEP HIGH PRESSURE OVER THE SW/US SHOWS LITTLE SIGNS OF MOVEMENT TO MIDWEEK. ABOVE NORMAL TEMPERATURES TO CONTINUE WITH ISOLD TO WIDELY SCATTERED AFTERNOON THUNDERSTORMS...BEGINNING OVER THE HIGHER TERRAIN AND WITH NW FLOW ALOFT STORMS SHOULD MIGRATE AWAY FROM MOUNTAINS TO SOME EXTENT WHILE LASTING SHORTLY AFTER SUNSET. E-W SFC TROUGH AT SFC NEXT 48 HRS MAY PROVIDE FOCUS FOR ISOLATED TSRA AS MAX HEATING OCCURS. WITH TROUGH INVOF PERMIAN BASIN WINDS SHOULD BE LIGHT AND VARIABLE EAST OF PECOS MONDAY. PROSPECT FOR RAIN FAIRLY GOOD NEAR MOUNTAINS DESPITE CAP... WHICH HAS BEEN BROKEN THERE EASILY NEAR NOON THIS WEEKEND. RECOMMEND MINIMAL POPS EAST OF PECOS TO ACCOUNT FOR STRAY TSRA... HOWEVER WARM TEMPS ALOFT SHOULD INHIBIT ANY ORGANIZED ACTIVITY. FWC GUIDANCE STILL A CAT TOO LOW. WL GO HIGHER BOTH PERIODS EXCEPT MRF. CNM 76/103 21 MAF 76/103 11 MRF 65/92 23 P07 78/101 1- JCP/JLF
The office that day
Everything else NWS Midland/Odessa, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 4:02 PM CDT | Tornado Warning | MAF | Howard | 13 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning in 1998
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.