Alert archive / Texas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 70, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at Oct 26, 2009, 1:02 PM CDT for Kenedy County, Texas. It was in force for 43 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
- Oct 26, 2009, 1:02 PM CDT (18:02 UTC)
- Expired
- Oct 26, 2009, 1:45 PM CDT
- In force
- 43 min
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
County Kenedy County, TX
The radar
The Corpus Christi radar (KCRP), 96 km from the middle of the area, began a volume at 18:05 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
Brownsville Intl, TX (KBRO), launched 12:00Z, 6.0 hours before the alert went out and 117 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
- 2412 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 592 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
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 Brownsville, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 26, 11:07 AM CDT, 1 hour 55 minutes earlier.
Area forecast discussion, Oct 26, 11:07 AM CDT, 1 hour 55 minutes before
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</html>Hazardous weather outlook, Oct 26, 7:12 AM CDT, 5 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BROWNSVILLE TX 712 AM CDT MON OCT 26 2009 TXZ248>257-271215- ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY- INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON- 712 AM CDT MON OCT 26 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS. .DAY ONE...TODAY AND TONIGHT. COLD FRONT ARRIVING DEEP SOUTH TEXAS THIS AFTERNOON MAY RESULT IN STRONGER THUNDERSTORMS ALONG THE LINE AS IT NEARS THE COAST LATER IN THE DAY. A FAVORABLE SOUNDING AND AVAILABLE MOISTURE WILL COUPLE WITH DIVERGENCE ALOFT TO ENHANCE THUNDERSTORM POTENTIAL. SEVERE POTENTIAL WILL BE LIMITED...BUT STRONG STORMS PRODUCING STRONG WIND GUSTS AND AN ISOLATED TORNADO WILL BE POSSIBLE. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... HAM ACTIVATION REQUESTED AND SPOTTERS SHOULD STANDBY. GMZ130-132-135-150-155-170-175-271215- LAGUNA MADRE FROM THE PORT OF BROWNSVILLE TO THE ARROYO COLORADO- LAGUNA MADRE FROM THE ARROYO COLORADO TO 5 NM NORTH OF PORT MANSFIELD TX- LAGUNA MADRE FROM 5 NM NORTH OF PORT MANSFIELD TO BAFFIN BAY TX- COASTAL WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM- COASTAL WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM- WATERS FROM PORT MANSFIELD TO THE RIO GRANDE EXTENDING FROM 20 TO 60 NM- WATERS FROM BAFFIN BAY TO PORT MANSFIELD EXTENDING FROM 20 TO 60 NM- 712 AM CDT MON OCT 26 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE GULF OF MEXICO AND THE LAGUNA MADRE. .DAY ONE...TODAY AND TONIGHT. SMALL CRAFT ADVISORY CONDITIONS IN EFFECT AS SOUTHEAST WINDS INCREASE TO AROUND 20 KNOTS AHEAD OF A COLD FRONT. WINDS WILL BRIEFLY DECREASE IN THE AFTERNOON...BUT WILL BECOME STRONG AND GUSTY FROM THE NORTH LATER TODAY WHEN THE FRONT GOES THROUGH... RESULTING IN CONTINUED SMALL CRAFT ADVISORY CONDITIONS. WINDS ACROSS SOME AREAS MAY REACH GALE FORCE MONDAY NIGHT...EITHER SUSTAINED OR VIA FREQUENT GUSTS. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE THIS EVENING AND TONIGHT...WITH ISOLATED MARGINALLY SEVERE. SEAS MAY BRIEFLY BUILD UP TO TEN FEET TONIGHT. A QUICK RETURN TO MODERATE SOUTHEAST WINDS AND LOWER SEAS IS EXPECTED BY TUESDAY NIGHT. THERE IS A MODERATE RISK OF RIP CURRENTS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. SMALL CRAFT ADVISORY CONDITIONS WILL DEVELOP AGAIN ON WEDNESDAY AS A PLAINS STORM SYSTEM DEEPENS...TIGHTENING THE PRESSURE GRADIENT. SOUTHEAST WINDS OF 20 TO 25 KNOTS WILL SET UP AND PERSIST THROUGH THURSDAY...BUILDING SEAS TO SEVEN OR EIGHT FEET OFFSHORE. NORTHWEST WINDS WILL INCREASE TO 25 KNOTS WITH HIGHER GUSTS EARLY FRIDAY BEHIND THE FRONT. SEAS WILL BUILD TO AROUND 10 FEET SINCE A SHORT NORTHEAST FETCH WILL OCCUR. SOUTHEAST WINDS WILL RETURN IN THE WAKE OF THE FRONT BETWEEN SATURDAY AND SUNDAY. RIP CURRENT RISK WILL OFTEN BE ELEVATED AS SEAS WILL BE AGITATED AND HIGHER MUCH OF THE WEEK. MARINE CONDITIONS THIS WEEK WILL BE HIGHLY VARIABLE AND AT TIMES HAZARDOUS. MARINERS SHOULD MONITOR CONDITIONS AND FORECASTS FREQUENTLY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
In the hours before
Special weather statement, Oct 26, 11:43 AM CDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 1143 AM CDT MON OCT 26 2009 TXZ248-249-252-262000- ZAPATA-JIM HOGG-STARR- INCLUDING THE CITIES OF...ZAPATA...HEBBRONVILLE... RIO GRANDE CITY...ROMA 1143 AM CDT MON OCT 26 2009 ...MUCH COOLER AIR RACING INTO THE RIO GRANDE PLAINS... THE REMNANTS OF A THUNDERSTORM SYSTEM THAT MOVED THROUGH OFF OF THE SIERRA MADRE ORIENTAL WEST OF EAGLE PASS HAS LINKED UP WITH A COLD FRONT MOVING QUICKLY TOWARD DEEP SOUTH TEXAS. WINDS HAVE TURNED NORTHERLY AND GUSTED OVER 40 MPH AT TIMES IN ZAPATA COUNTY AND WILL SPREAD THROUGH STARR AND JIM HOGG COUNTY THROUGH 1 PM. TEMPERATURES WILL FALL INTO THE LOWER OR MID 60S BY 2 PM IN ALL AREAS...LEVEL OFF FOR AN HOUR OR TWO...THEN CONTINUE DROPPING INTO THE MID AND UPPER 50S BEFORE NIGHTFALL. RESIDENTS SHOULD MOVE ANY LOOSE LIGHTWEIGHT ITEMS INDOORS IMMEDIATELY. MOTORISTS ESPECIALLY THOSE WITH HIGH PROFILE VEHICLES SHOULD BE ALERT TO WIND GUSTS POSSIBLY AS HIGH AS 50 MPH. TXZ250-251-253-262000- BROOKS-KENEDY-HIDALGO- INCLUDING THE CITIES OF...FALFURRIAS...SARITA...MCALLEN... EDINBURG...PHARR...MISSION...WESLACO 1143 AM CDT MON OCT 26 2009 ...MUCH COOLER AIR HEADED FOR DEEP SOUTH TEXAS AND THE MIDDLE RIO GRANDE VALLEY... THROUGH EARLY AFTERNOON: SCATTERED TO LOCALLY NUMEROUS SHOWERS AND A FEW THUNDERSTORMS WILL DEVELOP...SOME PRODUCING WIND GUSTS TO 30 MPH FROM THE SOUTHEAST AND REDUCING VISIBILITY BELOW 2 MILES BRIEFLY IN DOWNPOURS. FROM EARLY AFTERNOON THROUGH LATE AFTERNOON: A COLD FRONT WILL BRING A SHARP DROP IN TEMPERATURES ALONG WITH WIND GUSTS OF AT LEAST 40 MPH OR HIGHER FROM HIDALGO THROUGH BROOKS AND KENEDY COUNTY THIS AFTERNOON. IN ALL AREAS...TEMPERATURES WILL FALL INTO THE LOWER OR MID 60S WITHIN 1 OR 2 HOURS OF THE FRONT AND CONTINUE INTO THE MID OR UPPER 50S BEFORE SUNSET. TIMING OF THE FRONT AND TEMPERATURE CHANGES ARE AS FOLLOWS: 1 PM: RIO GRANDE CITY THROUGH 10 MILES WEST OF FALFURRIAS. 2 PM: LA JOYA THROUGH NORTHWEST KENEDY COUNTY...INCLUDING SAN MANUEL. 3 PM: MCALLEN THROUGH THE COAST OF NORTHERN KENEDY COUNTY. 4 PM: WESLACO THROUGH THE COAST OF SOUTHERN KENEDY COUNTY. RESIDENTS SHOULD MOVE ANY LOOSE LIGHTWEIGHT ITEMS INDOORS IMMEDIATELY. MOTORISTS ESPECIALLY THOSE WITH HIGH PROFILE VEHICLES SHOULD BE ALERT TO WIND GUSTS POSSIBLY AS HIGH AS 50 MPH. TXZ254>257-262000- INLAND WILLACY-INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON- INCLUDING THE CITIES OF...RAYMONDVILLE...BROWNSVILLE... HARLINGEN...PORT MANSFIELD...PORT ISABEL...SOUTH PADRE ISLAND... LAGUNA HEIGHTS...LAGUNA VISTA 1143 AM CDT MON OCT 26 2009 ...SCATTERED THUNDERSTORMS WILL PRECEDE MUCH COOLER AIR ARRIVING LATE THIS AFTERNOON AND EVENING... THROUGH 4 PM: SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP SOME WITH BRIEF DOWNPOURS AND SOUTHEASTERLY WIND GUSTS TO 25 OR 30 MPH OR SO. OUTSIDE OF ANY RAINS...TEMPERATURES WILL REACH THE MID 80S. BETWEEN 4 AND 7 PM: A COLD FRONT WILL PUSH THROUGH THE LOWER RIO GRANDE VALLEY...DROPPING TEMPERATURES SHARPLY FROM THE 80S INTO THE 60S WITHIN AN HOUR OF PASSAGE. WIND GUSTS WILL REACH 40 MPH OR HIGHER FROM THE NORTH. EXPECTED TIMING OF THE FRONT IS AS FOLLOWS: 4 PM: WESLACO THROUGH RAYMONDVILLE. 5 PM: WESTERN CAMERON COUNTY THROUGH PORT MANSFIELD. 6 PM: BROWNSVILLE THROUGH JUST NORTH OF THE TOWN OF SOUTH PADRE ISLAND. RESIDENTS SHOULD MOVE ANY LOOSE LIGHTWEIGHT ITEMS INDOORS EARLY THIS AFTERNOON. MOTORISTS SHOULD PREPARE FOR REDUCED VISIBILITY AND DANGEROUS CROSS WINDS BETWEEN 4 AND 7 PM ON AREA HIGHWAYS. HIGH PROFILE AND LIGHT WEIGHT VEHICLES ARE MOST AT RISK. 52/BSG
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 26, 4:03 AM CDT | Small Craft Advisory | BRO | 27 hr | |
| Oct 26, 11:33 AM CDT | Special Marine Warning | BRO | 117 min | |
| Oct 26, 1:22 PM CDT | Special Marine Warning | BRO | 83 min | |
| Oct 26, 1:29 PM CDT | Areal Flood Advisory | BRO | Hidalgo | 91 min |
| Oct 26, 2:22 PM CDT | Special Marine Warning | BRO | 113 min | |
| Oct 26, 2:23 PM CDT | Severe Thunderstorm Warning | BRO | Cameron, Hidalgo, Kenedy, Willacy | 52 min |
| Oct 26, 3:12 PM CDT | Special Marine Warning | BRO | 93 min | |
| Oct 26, 3:17 PM CDT | Severe Thunderstorm Warning | BRO | Cameron | 43 min |
| Oct 26, 4:17 PM CDT | Special Marine Warning | BRO | 88 min | |
| Oct 26, 4:52 PM CDT | Special Marine Warning | BRO | 53 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2009Every severe thunderstorm warning in 2009
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.