The FM99 wildfire quickly burned 541 acres in Karnes County on June 12th. The day was hot, dry, and breezy.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS EWX wrote it up.
The FM99 wildfire quickly burned 541 acres in Karnes County on June 12th. The day was hot, dry, and breezy. High temperatures in the area were between 94 and 99 degrees with minimum relative humidity between 25% and 37%. Winds were from the southeast at 14 to 17 mph with gusts up to 24 mph.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before the first event at Jun 12, 11:47 AM CST, 13 minutes earlier.
Area Forecast Discussion National Weather Service Austin/San Antonio TX 1247 PM CDT Tue Jun 12 2018 .AVIATION DISCUSSION...FOR 18Z TAF PERIOD... Per latest satellite trends, MVFR CIGs have mostly scattered out through the morning hours across the region. Should be expecting a dry afternoon with only very isolated chances for showers, thus do not expect any direct impacts to any terminals. Overnight, a return of gulf moisture should bring back MVFR CIGs by around midnight for the I-35 corridor terminals and reaching KDRT by daybreak. Some guidance suggests possibly lowering to IFR however, model disagreement in this possibility has kept confidence low and decided not to add this to the TAF for this period. If models continue to trend lower, may need to add IFR into the 00Z TAF update. && .PREV DISCUSSION... /ISSUED 626 AM CDT Tue Jun 12 2018/ AVIATION... MVFR ceilings will prevail in Austin and San Antonio until later this morning. We expect these clouds to spread to DRT within the next couple of hours. They will rebound to VFR by late morning. Winds will increase to around 15 kts by late morning and continue into the evening. There may be gusts into the lower 20s, but not high enough to include in the TAFs. MVFR ceilings will develop again overnight Tuesday/Wednesday in Austin and San Antonio. PREV DISCUSSION... /ISSUED 400 AM CDT Tue Jun 12 2018/ SHORT TERM (Today through Wednesday)... The mid and upper level ridge will remain centered across the western half of Texas and New Mexico today, with South Central Texas generally under the influence of its eastern periphery leading to continued warmth and mainly dry conditions. Afternoon heat index values today 100-104 for locations outside of the Hill Country. The ridge is forecast to flatten to the north Wednesday. Moisture values across the southeastern counties will increase and with less of an influence from the ridge we should see a return of isolated sea-breeze showers and storms. LONG TERM (Wednesday Night through Monday)... A slight uptick in the moisture values is forecast to take place Thursday. Isolated to widely scattered diurnally driven showers and storms are expected roughly near and east of the I-35 corridor. The moisture may contract slightly back to the east on Friday, but generally isolated diurnally driven showers and storms are expected again near and east of the I-35 corridor. The flattened upper level ridge to the north of the region Thursday is forecast to move east and amplify into the mid Mississippi River Valley southeast into the northeast Gulf of Mexico Friday through the weekend. This will open up an inverted upper level trough and associated tropical wave over the southwest Gulf of Mexico to move northwest toward Texas. Currently the National Hurricane Center is giving the disturbed area of weather a low chance for tropical cyclone formation over the next 5 days. Regardless, the leading edge of the tropical moisture is forecast to arrive into the southeastern CWA Saturday and Saturday night and spread further inland Sunday. This should lead to scattered showers and storms across the southeastern CWA Saturday and further west through much of the CWA Sunday and Sunday night. Should note, initially the deeper fetch of tropical moisture looks to be pulled northward toward the upper Texas coast and southwest Louisiana given the position and amplification of the ridge. The ridge position will play an important role into early next week with how far west this long fetch of tropical moisture makes it. Global models are indicating the upper level ridge retrograding back west into the north-central Gulf of Mexico Monday through Wednesday of next week allowing for the westward expansion of the deeper moisture plume into the region. Should this pattern verify the good chances for showers and storms would continue into early to middle portions of next week. At this time it is too soon to discuss rainfall amounts given the uncertainty in ridge and moisture plume position this far out. As a reminder, it should continued to be stressed to follow trusted sources, such as then National Hurricane Center, for outlooks on potential tropical development during hurricane season. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 75 95 74 95 75 / - 10 - 20 10 Austin Bergstrom Intl Airport 74 95 74 94 73 / - 20 - 20 10 New Braunfels Muni Airport 74 94 73 93 73 / - 20 - 20 10 Burnet Muni Airport 73 93 72 93 72 / - 10 - 10 - Del Rio Intl Airport 76 96 76 97 76 / 0 0 - 10 - Georgetown Muni Airport 74 94 73 93 74 / - 10 - 20 - Hondo Muni Airport 74 95 73 95 73 / - 10 - 10 10 San Marcos Muni Airport 74 95 73 94 73 / - 20 - 20 10 La Grange - Fayette Regional 75 94 74 94 74 / - 20 10 30 10 San Antonio Intl Airport 75 95 75 94 74 / - 10 - 20 10 Stinson Muni Airport 75 94 74 94 75 / - 20 - 20 10 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && Mesoscale/Aviation...TB3 Synoptic/Grids...Oaks Public Service/Data Collection...YB
Hazardous Weather Outlook National Weather Service Austin/San Antonio TX 445 AM CDT Tue Jun 12 2018 TXZ171>173-183>194-202>209-217>225-228-130945- Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde- Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Maverick-Zavala- Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca-Dimmit- 445 AM CDT Tue Jun 12 2018 This Hazardous Weather Outlook is for South-Central Texas.. .DAY ONE...Today And Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
The national radar mosaic for the moment the first event began.
1 wildfire. Local standard time, as filed.
The FM99 wildfire quickly burned 541 acres in Karnes County on June 12th. The day was hot, dry, and breezy. High temperatures in the area were between 94 and 99 degrees with minimum relative humidity between 25% and 37%. Winds were from the southeast at 14 to 17 mph with gusts up to 24 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2018Every state in 2018This day in weather historyWarnings in Texas, June 2018
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 763081.