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SPC MD 1650
Webmaster
5 hours ago
SPC MD 1650MD 1650 CONCERNING SEVERE THUNDERSTORM WATCH 509... FOR SOUTHEASTERN WYOMING...NORTHEASTERN COLORADO...WESTERN NEBRASKA 
Mesoscale Discussion 1650 NWS Storm Prediction Center Norman OK 0832 PM CDT Fri Jul 11 2025
Areas affected...southeastern Wyoming...northeastern Colorado...western Nebraska
Concerning...Severe Thunderstorm Watch 509...
Valid 120132Z - 120300Z
The severe weather threat for Severe Thunderstorm Watch 509 continues.
SUMMARY...Threat for large hail and damaging wind continues in WW509.
DISCUSSION...Outflow interactions from storms moving off of the high terrain has led to a steady increase in thunderstorm activity across northeastern Colorado into western Nebraska. Initial supercells have been efficient at producing 1-1.5 (occasionally 2") hail. As storms further congeal along outflow, the damaging wind risk may increase through the evening across eastern Colorado into northwest Kansas. Mode remains somewhat disorganized for now, with much of the activity north of the front. For now, more discrete convection will continue to pose a risk for large hail.
..Thornton.. 07/12/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...LBF...GLD...BOU...CYS...
LAT...LON 40850527 41460502 41570467 41680346 41690255 41620210 41430170 41350154 41130127 40210135 39730186 39670304 40090483 40100496 40850527
MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
Read morehttps://www.spc.noaa.gov/products/md/md1650.html
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SPC MD 1651
Webmaster
5 hours ago
SPC MD 1651MD 1651 CONCERNING SEVERE THUNDERSTORM WATCH 510... FOR EASTERN NEW MEXICO INTO THE TEXAS/OKLAHOMA PANHANDLES 
Mesoscale Discussion 1651 NWS Storm Prediction Center Norman OK 0922 PM CDT Fri Jul 11 2025
Areas affected...eastern New Mexico into the Texas/Oklahoma Panhandles
Concerning...Severe Thunderstorm Watch 510...
Valid 120222Z - 120345Z
The severe weather threat for Severe Thunderstorm Watch 510 continues.
SUMMARY...Damaging wind threat is increasing within WW510.
DISCUSSION...Thunderstorms in eastern New Mexico have shown better organization along outflow over the last 20-30 minutes. In addition, cloud top cooling is noted on infrared satellite indicating some uptick in intensity. As this line advances into the Texas Panhandle, the damaging wind risk may increase over the next couple of hours. The downstream environment remains favorable unstable. The 00z RAOB from AMA shows steep low level lapse rates and ample MLCAPE. While diurnal heating has ended and MLCIN is increasing, this line segment will likely be able to maintain intensity for the next couple of hours as it tracks southeastward aided by modest south easterlies around 20-25 kts noted from KAMA. In addition, new development has occurred ahead of the main line of storms which may pose a risk for severe hail. Local expansion of WW510 may be needed into the OK/TX Panhandles.
..Thornton.. 07/12/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...DDC...AMA...PUB...ABQ...
LAT...LON 35790107 35270114 35060136 34860168 34760253 34820342 34840365 35190442 35460460 35770473 35880457 36080407 36160351 36410309 36700279 36940285 37100284 37320247 37080188 36590136 36390125 36190112 35910104 35790107
MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
Read morehttps://www.spc.noaa.gov/products/md/md1651.html
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SPC Severe Thunderstorm Watch 507 Status Reports
Webmaster
5 hours ago
SPC Severe Thunderstorm Watch 507 Status ReportsWW 0507 Status Updates 
STATUS REPORT ON WW 507
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 W SZL TO 5 S IRK TO 40 SE BRL.
REMAINING VALID PORTION OF WW 507 MAY BE ALLOWED TO EXPIRE AT 12/03Z.
..KERR..07/12/25
ATTN...WFO...LSX...EAX...
STATUS REPORT FOR WS 507
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC001-009-149-120300-
IL . ILLINOIS COUNTIES INCLUDED ARE
ADAMS BROWN PIKE
MOC007-019-041-053-089-101-103-111-121-127-137-159-163-173-175- 195-205-120300-
MO . MISSOURI COUNTIES INCLUDED ARE
AUDRAIN BOONE CHARITON COOPER HOWARD JOHNSON KNOX LEWIS MACON MARION MONROE PETTIS PIKE RALLS RANDOLPH SALINE SHELBY
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
Read morehttps://www.spc.noaa.gov/products/watch/ws0507.html
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SPC Severe Thunderstorm Watch 507
Webmaster
5 hours ago
SPC Severe Thunderstorm Watch 507WW 507 SEVERE TSTM IL KS MO 111920Z - 120300Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 507 NWS Storm Prediction Center Norman OK 220 PM CDT Fri Jul 11 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of Far West-Central Illinois Extreme Northeast Kansas Northern Missouri
* Effective this Friday afternoon and evening from 220 PM until 1000 PM CDT.
* Primary threats include... Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible
SUMMARY...Thunderstorm coverage and intensity is forecast to increase from northeast KS across northern MO and into west-central IL this afternoon. Strong to extreme buoyancy is in place across the region, supporting the potential for robust updrafts. Vertical shear is weak, which could limit storm organization, but the intense updrafts and related water loading could result in numerous strong downbursts. A few instances of hail could occur as well, but warm temperatures should preclude a greater hail threat.
The severe thunderstorm watch area is approximately along and 45 statute miles north and south of a line from Leavenworth KS to 35 miles east southeast of Quincy IL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 505...WW 506...
AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24035.
...Mosier
Read morehttps://www.spc.noaa.gov/products/watch/ww0507.html
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SPC Severe Thunderstorm Watch 509 Status Reports
Webmaster
5 hours ago
SPC Severe Thunderstorm Watch 509 Status ReportsWW 0509 Status Updates 
STATUS REPORT ON WW 509
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 WNW DEN TO 35 S BFF TO 35 SE AIA.
..THORNTON..07/12/25
ATTN...WFO...BOU...GLD...CYS...LBF...
STATUS REPORT FOR WS 509
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC075-087-095-115-121-123-125-120340-
CO . COLORADO COUNTIES INCLUDED ARE
LOGAN MORGAN PHILLIPS SEDGWICK WASHINGTON WELD YUMA
KSC023-039-153-120340-
KS . KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR RAWLINS
NEC029-033-049-057-063-069-085-087-101-105-111-135-145-120340-
NE . NEBRASKA COUNTIES INCLUDED ARE
CHASE CHEYENNE DEUEL DUNDY FRONTIER GARDEN
Read morehttps://www.spc.noaa.gov/products/watch/ws0509.html
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SPC Severe Thunderstorm Watch 509
Webmaster
5 hours ago
SPC Severe Thunderstorm Watch 509WW 509 SEVERE TSTM CO KS NE WY 112220Z - 120500Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 509 NWS Storm Prediction Center Norman OK 420 PM MDT Fri Jul 11 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of North-Central and Northeast Colorado Far Northwest Kansas Southwest Nebraska and the Nebraska Panhandle Southeast Wyoming
* Effective this Friday afternoon and evening from 420 PM until 1100 PM MDT.
* Primary threats include... Scattered damaging winds and isolated significant gusts to 75 mph possible Scattered large hail and isolated very large hail events to 2 inches in diameter possible
SUMMARY...Scattered strong to severe thunderstorms should spread generally east-southeastward this evening while posing a threat for both large hail and severe/damaging winds. The largest hail may reach up to 1-2 inches in diameter, while peak gusts of 65-75 mph appear possible if a cluster of thunderstorms can form later this evening.
The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 30 miles west southwest of Cheyenne WY to 15 miles northeast of Mccook NE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 505...WW 506...WW 507...WW 508...
AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30025.
...Gleason
Read morehttps://www.spc.noaa.gov/products/watch/ww0509.html
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SPC Tornado Watch 508 Status Reports
Webmaster
5 hours ago
SPC Tornado Watch 508 Status ReportsWW 0508 Status Updates 
STATUS REPORT ON WW 508
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 E MMO TO 35 WNW VPZ.
REMAINING VALID PORTION OF WW MAY BE CANCELLED EARLY.
..KERR..07/12/25
ATTN...WFO...LOT...MKX...
STATUS REPORT FOR WT 508
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC031-120340-
IL . ILLINOIS COUNTIES INCLUDED ARE
COOK
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
Read morehttps://www.spc.noaa.gov/products/watch/ws0508.html
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SPC Severe Thunderstorm Watch 510 Status Reports
Webmaster
5 hours ago
SPC Severe Thunderstorm Watch 510 Status ReportsWW 0510 Status Updates 
STATUS REPORT ON WW 510
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 E SAF TO 35 SE RTN TO 40 E ALS.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1651
..THORNTON..07/12/25
ATTN...WFO...PUB...ABQ...AMA...
STATUS REPORT FOR WS 510
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC009-071-120340-
CO . COLORADO COUNTIES INCLUDED ARE
BACA LAS ANIMAS
NMC009-011-019-021-037-041-047-059-120340-
NM . NEW MEXICO COUNTIES INCLUDED ARE
CURRY DE BACA GUADALUPE HARDING QUAY ROOSEVELT SAN MIGUEL UNION
OKC025-120340-
OK . OKLAHOMA COUNTIES INCLUDED ARE
Read morehttps://www.spc.noaa.gov/products/watch/ws0510.html
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SPC Severe Thunderstorm Watch 510
Webmaster
5 hours ago
SPC Severe Thunderstorm Watch 510WW 510 SEVERE TSTM CO NM OK TX 112310Z - 120600Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 510 NWS Storm Prediction Center Norman OK 610 PM CDT Fri Jul 11 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of Southeast Colorado Eastern New Mexico The Oklahoma Panhandle The Western Texas Panhandle
* Effective this Friday night and Saturday morning from 610 PM until 100 AM CDT.
* Primary threats include... Scattered damaging winds and isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...Slow-moving supercells should pose an isolated threat for severe hail generally up to 1-1.5 inches in diameter this evening across eastern New Mexico and southeast Colorado. With time, a bowing cluster of thunderstorms may develop and pose a greater threat for scattered severe/damaging winds up to 60-75 mph across parts of the Oklahoma/Texas Panhandles.
The severe thunderstorm watch area is approximately along and 85 statute miles east and west of a line from 45 miles east northeast of Trinidad CO to 45 miles southeast of Tucumcari NM. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 505...WW 506...WW 507...WW 508...WW 509...
AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30020.
...Gleason
Read morehttps://www.spc.noaa.gov/products/watch/ww0510.html
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Sunday: Sunny Intervals, Minimum Temperature: 16°C (61°F) Maximum Temperature: 28°C (82°F)
Webmaster
7 hours ago
Maximum Temperature: 28°C (82°F), Minimum Temperature: 16°C (61°F), Wind Direction: Easterly, Wind Speed: 7mph, Visibility: Good, Pressure: 1013mb, Humidity: 51%, UV Risk: 6, Pollution: Low, Sunrise: 04:57 BST, Sunset: 21:32 BST Source: Sunday: Sunny Intervals, Minimum Temperature: 16°C (61°F) Maximum Temperature: 28°C (82°F)
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Sunday: Sunny Intervals, Minimum Temperature: 16°C (61°F) Maximum Temperature: 28°C (82°F)
Webmaster
7 hours ago
Maximum Temperature: 28°C (82°F), Minimum Temperature: 16°C (61°F), Wind Direction: Easterly, Wind Speed: 7mph, Visibility: Good, Pressure: 1013mb, Humidity: 51%, UV Risk: 6, Pollution: Low, Sunrise: 04:57 BST, Sunset: 21:32 BST Source: Sunday: Sunny Intervals, Minimum Temperature: 16°C (61°F) Maximum Temperature: 28°C (82°F)
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Copyright 1996 - 2024 by David Cottle. Designed by David Bate Jr. All Rights Reserved.
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